Add m-esr52 at 52.6.0

18 files changed, 5643 insertions, 0 deletions

diff --git a/media/libvpx/vpx/internal/vpx_codec_internal.h b/media/libvpx/vpx/internal/vpx_codec_internal.h
new file mode 100644
index 000000000..7380fcc7e
--- /dev/null
+++ b/media/libvpx/vpx/internal/vpx_codec_internal.h
@@ -0,0 +1,445 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\file
+ * \brief Describes the decoder algorithm interface for algorithm
+ *        implementations.
+ *
+ * This file defines the private structures and data types that are only
+ * relevant to implementing an algorithm, as opposed to using it.
+ *
+ * To create a decoder algorithm class, an interface structure is put
+ * into the global namespace:
+ *     <pre>
+ *     my_codec.c:
+ *       vpx_codec_iface_t my_codec = {
+ *           "My Codec v1.0",
+ *           VPX_CODEC_ALG_ABI_VERSION,
+ *           ...
+ *       };
+ *     </pre>
+ *
+ * An application instantiates a specific decoder instance by using
+ * vpx_codec_init() and a pointer to the algorithm's interface structure:
+ *     <pre>
+ *     my_app.c:
+ *       extern vpx_codec_iface_t my_codec;
+ *       {
+ *           vpx_codec_ctx_t algo;
+ *           res = vpx_codec_init(&algo, &my_codec);
+ *       }
+ *     </pre>
+ *
+ * Once initialized, the instance is manged using other functions from
+ * the vpx_codec_* family.
+ */
+#ifndef VPX_INTERNAL_VPX_CODEC_INTERNAL_H_
+#define VPX_INTERNAL_VPX_CODEC_INTERNAL_H_
+#include "../vpx_decoder.h"
+#include "../vpx_encoder.h"
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!\brief Current ABI version number
+ *
+ * \internal
+ * If this file is altered in any way that changes the ABI, this value
+ * must be bumped.  Examples include, but are not limited to, changing
+ * types, removing or reassigning enums, adding/removing/rearranging
+ * fields to structures
+ */
+#define VPX_CODEC_INTERNAL_ABI_VERSION (5) /**<\hideinitializer*/
+
+typedef struct vpx_codec_alg_priv  vpx_codec_alg_priv_t;
+typedef struct vpx_codec_priv_enc_mr_cfg vpx_codec_priv_enc_mr_cfg_t;
+
+/*!\brief init function pointer prototype
+ *
+ * Performs algorithm-specific initialization of the decoder context. This
+ * function is called by the generic vpx_codec_init() wrapper function, so
+ * plugins implementing this interface may trust the input parameters to be
+ * properly initialized.
+ *
+ * \param[in] ctx   Pointer to this instance's context
+ * \retval #VPX_CODEC_OK
+ *     The input stream was recognized and decoder initialized.
+ * \retval #VPX_CODEC_MEM_ERROR
+ *     Memory operation failed.
+ */
+typedef vpx_codec_err_t (*vpx_codec_init_fn_t)(vpx_codec_ctx_t *ctx,
+                                               vpx_codec_priv_enc_mr_cfg_t *data);
+
+/*!\brief destroy function pointer prototype
+ *
+ * Performs algorithm-specific destruction of the decoder context. This
+ * function is called by the generic vpx_codec_destroy() wrapper function,
+ * so plugins implementing this interface may trust the input parameters
+ * to be properly initialized.
+ *
+ * \param[in] ctx   Pointer to this instance's context
+ * \retval #VPX_CODEC_OK
+ *     The input stream was recognized and decoder initialized.
+ * \retval #VPX_CODEC_MEM_ERROR
+ *     Memory operation failed.
+ */
+typedef vpx_codec_err_t (*vpx_codec_destroy_fn_t)(vpx_codec_alg_priv_t *ctx);
+
+/*!\brief parse stream info function pointer prototype
+ *
+ * Performs high level parsing of the bitstream. This function is called by the
+ * generic vpx_codec_peek_stream_info() wrapper function, so plugins
+ * implementing this interface may trust the input parameters to be properly
+ * initialized.
+ *
+ * \param[in]      data    Pointer to a block of data to parse
+ * \param[in]      data_sz Size of the data buffer
+ * \param[in,out]  si      Pointer to stream info to update. The size member
+ *                         \ref MUST be properly initialized, but \ref MAY be
+ *                         clobbered by the algorithm. This parameter \ref MAY
+ *                         be NULL.
+ *
+ * \retval #VPX_CODEC_OK
+ *     Bitstream is parsable and stream information updated
+ */
+typedef vpx_codec_err_t (*vpx_codec_peek_si_fn_t)(const uint8_t         *data,
+                                                  unsigned int           data_sz,
+                                                  vpx_codec_stream_info_t *si);
+
+/*!\brief Return information about the current stream.
+ *
+ * Returns information about the stream that has been parsed during decoding.
+ *
+ * \param[in]      ctx     Pointer to this instance's context
+ * \param[in,out]  si      Pointer to stream info to update. The size member
+ *                         \ref MUST be properly initialized, but \ref MAY be
+ *                         clobbered by the algorithm. This parameter \ref MAY
+ *                         be NULL.
+ *
+ * \retval #VPX_CODEC_OK
+ *     Bitstream is parsable and stream information updated
+ */
+typedef vpx_codec_err_t (*vpx_codec_get_si_fn_t)(vpx_codec_alg_priv_t    *ctx,
+                                                 vpx_codec_stream_info_t *si);
+
+/*!\brief control function pointer prototype
+ *
+ * This function is used to exchange algorithm specific data with the decoder
+ * instance. This can be used to implement features specific to a particular
+ * algorithm.
+ *
+ * This function is called by the generic vpx_codec_control() wrapper
+ * function, so plugins implementing this interface may trust the input
+ * parameters to be properly initialized. However,  this interface does not
+ * provide type safety for the exchanged data or assign meanings to the
+ * control codes. Those details should be specified in the algorithm's
+ * header file. In particular, the ctrl_id parameter is guaranteed to exist
+ * in the algorithm's control mapping table, and the data parameter may be NULL.
+ *
+ *
+ * \param[in]     ctx              Pointer to this instance's context
+ * \param[in]     ctrl_id          Algorithm specific control identifier
+ * \param[in,out] data             Data to exchange with algorithm instance.
+ *
+ * \retval #VPX_CODEC_OK
+ *     The internal state data was deserialized.
+ */
+typedef vpx_codec_err_t (*vpx_codec_control_fn_t)(vpx_codec_alg_priv_t *ctx,
+                                                  va_list ap);
+
+/*!\brief control function pointer mapping
+ *
+ * This structure stores the mapping between control identifiers and
+ * implementing functions. Each algorithm provides a list of these
+ * mappings. This list is searched by the vpx_codec_control() wrapper
+ * function to determine which function to invoke. The special
+ * value {0, NULL} is used to indicate end-of-list, and must be
+ * present. The special value {0, <non-null>} can be used as a catch-all
+ * mapping. This implies that ctrl_id values chosen by the algorithm
+ * \ref MUST be non-zero.
+ */
+typedef const struct vpx_codec_ctrl_fn_map {
+  int ctrl_id;
+  vpx_codec_control_fn_t fn;
+} vpx_codec_ctrl_fn_map_t;
+
+/*!\brief decode data function pointer prototype
+ *
+ * Processes a buffer of coded data. If the processing results in a new
+ * decoded frame becoming available, #VPX_CODEC_CB_PUT_SLICE and
+ * #VPX_CODEC_CB_PUT_FRAME events are generated as appropriate. This
+ * function is called by the generic vpx_codec_decode() wrapper function,
+ * so plugins implementing this interface may trust the input parameters
+ * to be properly initialized.
+ *
+ * \param[in] ctx          Pointer to this instance's context
+ * \param[in] data         Pointer to this block of new coded data. If
+ *                         NULL, a #VPX_CODEC_CB_PUT_FRAME event is posted
+ *                         for the previously decoded frame.
+ * \param[in] data_sz      Size of the coded data, in bytes.
+ *
+ * \return Returns #VPX_CODEC_OK if the coded data was processed completely
+ *         and future pictures can be decoded without error. Otherwise,
+ *         see the descriptions of the other error codes in ::vpx_codec_err_t
+ *         for recoverability capabilities.
+ */
+typedef vpx_codec_err_t (*vpx_codec_decode_fn_t)(vpx_codec_alg_priv_t  *ctx,
+                                                 const uint8_t         *data,
+                                                 unsigned int     data_sz,
+                                                 void        *user_priv,
+                                                 long         deadline);
+
+/*!\brief Decoded frames iterator
+ *
+ * Iterates over a list of the frames available for display. The iterator
+ * storage should be initialized to NULL to start the iteration. Iteration is
+ * complete when this function returns NULL.
+ *
+ * The list of available frames becomes valid upon completion of the
+ * vpx_codec_decode call, and remains valid until the next call to vpx_codec_decode.
+ *
+ * \param[in]     ctx      Pointer to this instance's context
+ * \param[in out] iter     Iterator storage, initialized to NULL
+ *
+ * \return Returns a pointer to an image, if one is ready for display. Frames
+ *         produced will always be in PTS (presentation time stamp) order.
+ */
+typedef vpx_image_t *(*vpx_codec_get_frame_fn_t)(vpx_codec_alg_priv_t *ctx,
+                                                 vpx_codec_iter_t     *iter);
+
+/*!\brief Pass in external frame buffers for the decoder to use.
+ *
+ * Registers functions to be called when libvpx needs a frame buffer
+ * to decode the current frame and a function to be called when libvpx does
+ * not internally reference the frame buffer. This set function must
+ * be called before the first call to decode or libvpx will assume the
+ * default behavior of allocating frame buffers internally.
+ *
+ * \param[in] ctx          Pointer to this instance's context
+ * \param[in] cb_get       Pointer to the get callback function
+ * \param[in] cb_release   Pointer to the release callback function
+ * \param[in] cb_priv      Callback's private data
+ *
+ * \retval #VPX_CODEC_OK
+ *     External frame buffers will be used by libvpx.
+ * \retval #VPX_CODEC_INVALID_PARAM
+ *     One or more of the callbacks were NULL.
+ * \retval #VPX_CODEC_ERROR
+ *     Decoder context not initialized, or algorithm not capable of
+ *     using external frame buffers.
+ *
+ * \note
+ * When decoding VP9, the application may be required to pass in at least
+ * #VP9_MAXIMUM_REF_BUFFERS + #VPX_MAXIMUM_WORK_BUFFERS external frame
+ * buffers.
+ */
+typedef vpx_codec_err_t (*vpx_codec_set_fb_fn_t)(
+    vpx_codec_alg_priv_t *ctx,
+    vpx_get_frame_buffer_cb_fn_t cb_get,
+    vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv);
+
+
+typedef vpx_codec_err_t (*vpx_codec_encode_fn_t)(vpx_codec_alg_priv_t  *ctx,
+                                                 const vpx_image_t     *img,
+                                                 vpx_codec_pts_t        pts,
+                                                 unsigned long          duration,
+                                                 vpx_enc_frame_flags_t  flags,
+                                                 unsigned long          deadline);
+typedef const vpx_codec_cx_pkt_t *(*vpx_codec_get_cx_data_fn_t)(vpx_codec_alg_priv_t *ctx,
+                                                                vpx_codec_iter_t     *iter);
+
+typedef vpx_codec_err_t
+(*vpx_codec_enc_config_set_fn_t)(vpx_codec_alg_priv_t       *ctx,
+                                 const vpx_codec_enc_cfg_t  *cfg);
+typedef vpx_fixed_buf_t *
+(*vpx_codec_get_global_headers_fn_t)(vpx_codec_alg_priv_t   *ctx);
+
+typedef vpx_image_t *
+(*vpx_codec_get_preview_frame_fn_t)(vpx_codec_alg_priv_t   *ctx);
+
+typedef vpx_codec_err_t
+(*vpx_codec_enc_mr_get_mem_loc_fn_t)(const vpx_codec_enc_cfg_t     *cfg,
+                                     void **mem_loc);
+
+/*!\brief usage configuration mapping
+ *
+ * This structure stores the mapping between usage identifiers and
+ * configuration structures. Each algorithm provides a list of these
+ * mappings. This list is searched by the vpx_codec_enc_config_default()
+ * wrapper function to determine which config to return. The special value
+ * {-1, {0}} is used to indicate end-of-list, and must be present. At least
+ * one mapping must be present, in addition to the end-of-list.
+ *
+ */
+typedef const struct vpx_codec_enc_cfg_map {
+  int                 usage;
+  vpx_codec_enc_cfg_t cfg;
+} vpx_codec_enc_cfg_map_t;
+
+/*!\brief Decoder algorithm interface interface
+ *
+ * All decoders \ref MUST expose a variable of this type.
+ */
+struct vpx_codec_iface {
+  const char               *name;        /**< Identification String  */
+  int                       abi_version; /**< Implemented ABI version */
+  vpx_codec_caps_t          caps;    /**< Decoder capabilities */
+  vpx_codec_init_fn_t       init;    /**< \copydoc ::vpx_codec_init_fn_t */
+  vpx_codec_destroy_fn_t    destroy;     /**< \copydoc ::vpx_codec_destroy_fn_t */
+  vpx_codec_ctrl_fn_map_t  *ctrl_maps;   /**< \copydoc ::vpx_codec_ctrl_fn_map_t */
+  struct vpx_codec_dec_iface {
+    vpx_codec_peek_si_fn_t    peek_si;     /**< \copydoc ::vpx_codec_peek_si_fn_t */
+    vpx_codec_get_si_fn_t     get_si;      /**< \copydoc ::vpx_codec_get_si_fn_t */
+    vpx_codec_decode_fn_t     decode;      /**< \copydoc ::vpx_codec_decode_fn_t */
+    vpx_codec_get_frame_fn_t  get_frame;   /**< \copydoc ::vpx_codec_get_frame_fn_t */
+    vpx_codec_set_fb_fn_t     set_fb_fn;   /**< \copydoc ::vpx_codec_set_fb_fn_t */
+  } dec;
+  struct vpx_codec_enc_iface {
+    int                                cfg_map_count;
+    vpx_codec_enc_cfg_map_t           *cfg_maps;      /**< \copydoc ::vpx_codec_enc_cfg_map_t */
+    vpx_codec_encode_fn_t              encode;        /**< \copydoc ::vpx_codec_encode_fn_t */
+    vpx_codec_get_cx_data_fn_t         get_cx_data;   /**< \copydoc ::vpx_codec_get_cx_data_fn_t */
+    vpx_codec_enc_config_set_fn_t      cfg_set;       /**< \copydoc ::vpx_codec_enc_config_set_fn_t */
+    vpx_codec_get_global_headers_fn_t  get_glob_hdrs; /**< \copydoc ::vpx_codec_get_global_headers_fn_t */
+    vpx_codec_get_preview_frame_fn_t   get_preview;   /**< \copydoc ::vpx_codec_get_preview_frame_fn_t */
+    vpx_codec_enc_mr_get_mem_loc_fn_t  mr_get_mem_loc;   /**< \copydoc ::vpx_codec_enc_mr_get_mem_loc_fn_t */
+  } enc;
+};
+
+/*!\brief Callback function pointer / user data pair storage */
+typedef struct vpx_codec_priv_cb_pair {
+  union {
+    vpx_codec_put_frame_cb_fn_t    put_frame;
+    vpx_codec_put_slice_cb_fn_t    put_slice;
+  } u;
+  void                            *user_priv;
+} vpx_codec_priv_cb_pair_t;
+
+
+/*!\brief Instance private storage
+ *
+ * This structure is allocated by the algorithm's init function. It can be
+ * extended in one of two ways. First, a second, algorithm specific structure
+ * can be allocated and the priv member pointed to it. Alternatively, this
+ * structure can be made the first member of the algorithm specific structure,
+ * and the pointer cast to the proper type.
+ */
+struct vpx_codec_priv {
+  const char                     *err_detail;
+  vpx_codec_flags_t               init_flags;
+  struct {
+    vpx_codec_priv_cb_pair_t    put_frame_cb;
+    vpx_codec_priv_cb_pair_t    put_slice_cb;
+  } dec;
+  struct {
+    vpx_fixed_buf_t             cx_data_dst_buf;
+    unsigned int                cx_data_pad_before;
+    unsigned int                cx_data_pad_after;
+    vpx_codec_cx_pkt_t          cx_data_pkt;
+    unsigned int                total_encoders;
+  } enc;
+};
+
+/*
+ * Multi-resolution encoding internal configuration
+ */
+struct vpx_codec_priv_enc_mr_cfg
+{
+    unsigned int           mr_total_resolutions;
+    unsigned int           mr_encoder_id;
+    struct vpx_rational    mr_down_sampling_factor;
+    void*                  mr_low_res_mode_info;
+};
+
+#undef VPX_CTRL_USE_TYPE
+#define VPX_CTRL_USE_TYPE(id, typ) \
+  static VPX_INLINE typ id##__value(va_list args) {return va_arg(args, typ);}
+
+#undef VPX_CTRL_USE_TYPE_DEPRECATED
+#define VPX_CTRL_USE_TYPE_DEPRECATED(id, typ) \
+  static VPX_INLINE typ id##__value(va_list args) {return va_arg(args, typ);}
+
+#define CAST(id, arg) id##__value(arg)
+
+/* CODEC_INTERFACE convenience macro
+ *
+ * By convention, each codec interface is a struct with extern linkage, where
+ * the symbol is suffixed with _algo. A getter function is also defined to
+ * return a pointer to the struct, since in some cases it's easier to work
+ * with text symbols than data symbols (see issue #169). This function has
+ * the same name as the struct, less the _algo suffix. The CODEC_INTERFACE
+ * macro is provided to define this getter function automatically.
+ */
+#define CODEC_INTERFACE(id)\
+  vpx_codec_iface_t* id(void) { return &id##_algo; }\
+  vpx_codec_iface_t  id##_algo
+
+
+/* Internal Utility Functions
+ *
+ * The following functions are intended to be used inside algorithms as
+ * utilities for manipulating vpx_codec_* data structures.
+ */
+struct vpx_codec_pkt_list {
+  unsigned int            cnt;
+  unsigned int            max;
+  struct vpx_codec_cx_pkt pkts[1];
+};
+
+#define vpx_codec_pkt_list_decl(n)\
+  union {struct vpx_codec_pkt_list head;\
+    struct {struct vpx_codec_pkt_list head;\
+      struct vpx_codec_cx_pkt    pkts[n];} alloc;}
+
+#define vpx_codec_pkt_list_init(m)\
+  (m)->alloc.head.cnt = 0,\
+                        (m)->alloc.head.max = sizeof((m)->alloc.pkts) / sizeof((m)->alloc.pkts[0])
+
+int
+vpx_codec_pkt_list_add(struct vpx_codec_pkt_list *,
+                       const struct vpx_codec_cx_pkt *);
+
+const vpx_codec_cx_pkt_t *
+vpx_codec_pkt_list_get(struct vpx_codec_pkt_list *list,
+                       vpx_codec_iter_t           *iter);
+
+
+#include <stdio.h>
+#include <setjmp.h>
+
+struct vpx_internal_error_info {
+  vpx_codec_err_t  error_code;
+  int              has_detail;
+  char             detail[80];
+  int              setjmp;
+  jmp_buf          jmp;
+};
+
+#define CLANG_ANALYZER_NORETURN
+#if defined(__has_feature)
+#if __has_feature(attribute_analyzer_noreturn)
+#undef CLANG_ANALYZER_NORETURN
+#define CLANG_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
+#endif
+#endif
+
+void vpx_internal_error(struct vpx_internal_error_info *info,
+                        vpx_codec_err_t                 error,
+                        const char                     *fmt,
+                        ...) CLANG_ANALYZER_NORETURN;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_INTERNAL_VPX_CODEC_INTERNAL_H_
diff --git a/media/libvpx/vpx/internal/vpx_psnr.h b/media/libvpx/vpx/internal/vpx_psnr.h
new file mode 100644
index 000000000..07d81bb8d
--- /dev/null
+++ b/media/libvpx/vpx/internal/vpx_psnr.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VPX_INTERNAL_VPX_PSNR_H_
+#define VPX_INTERNAL_VPX_PSNR_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// TODO(dkovalev) change vpx_sse_to_psnr signature: double -> int64_t
+
+/*!\brief Converts SSE to PSNR
+ *
+ * Converts sum of squared errros (SSE) to peak signal-to-noise ratio (PNSR).
+ *
+ * \param[in]    samples       Number of samples
+ * \param[in]    peak          Max sample value
+ * \param[in]    sse           Sum of squared errors
+ */
+double vpx_sse_to_psnr(double samples, double peak, double sse);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_INTERNAL_VPX_PSNR_H_
diff --git a/media/libvpx/vpx/src/svc_encodeframe.c b/media/libvpx/vpx/src/svc_encodeframe.c
new file mode 100644
index 000000000..9844ace54
--- /dev/null
+++ b/media/libvpx/vpx/src/svc_encodeframe.c
@@ -0,0 +1,663 @@
+/*
+ *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/**
+ * @file
+ * VP9 SVC encoding support via libvpx
+ */
+
+#include <assert.h>
+#include <math.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#define VPX_DISABLE_CTRL_TYPECHECKS 1
+#include "./vpx_config.h"
+#include "vpx/svc_context.h"
+#include "vpx/vp8cx.h"
+#include "vpx/vpx_encoder.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp9/common/vp9_onyxc_int.h"
+
+#ifdef __MINGW32__
+#define strtok_r strtok_s
+#ifndef MINGW_HAS_SECURE_API
+// proto from /usr/x86_64-w64-mingw32/include/sec_api/string_s.h
+_CRTIMP char *__cdecl strtok_s(char *str, const char *delim, char **context);
+#endif  /* MINGW_HAS_SECURE_API */
+#endif  /* __MINGW32__ */
+
+#ifdef _MSC_VER
+#define strdup _strdup
+#define strtok_r strtok_s
+#endif
+
+#define SVC_REFERENCE_FRAMES 8
+#define SUPERFRAME_SLOTS (8)
+#define SUPERFRAME_BUFFER_SIZE (SUPERFRAME_SLOTS * sizeof(uint32_t) + 2)
+
+#define MAX_QUANTIZER 63
+
+static const int DEFAULT_SCALE_FACTORS_NUM[VPX_SS_MAX_LAYERS] = {
+  4, 5, 7, 11, 16
+};
+
+static const int DEFAULT_SCALE_FACTORS_DEN[VPX_SS_MAX_LAYERS] = {
+  16, 16, 16, 16, 16
+};
+
+typedef enum {
+  QUANTIZER = 0,
+  BITRATE,
+  SCALE_FACTOR,
+  AUTO_ALT_REF,
+  ALL_OPTION_TYPES
+} LAYER_OPTION_TYPE;
+
+static const int option_max_values[ALL_OPTION_TYPES] = {
+  63, INT_MAX, INT_MAX, 1
+};
+
+static const int option_min_values[ALL_OPTION_TYPES] = {
+  0, 0, 1, 0
+};
+
+// One encoded frame
+typedef struct FrameData {
+  void                     *buf;    // compressed data buffer
+  size_t                    size;  // length of compressed data
+  vpx_codec_frame_flags_t   flags;    /**< flags for this frame */
+  struct FrameData         *next;
+} FrameData;
+
+static SvcInternal_t *get_svc_internal(SvcContext *svc_ctx) {
+  if (svc_ctx == NULL) return NULL;
+  if (svc_ctx->internal == NULL) {
+    SvcInternal_t *const si = (SvcInternal_t *)malloc(sizeof(*si));
+    if (si != NULL) {
+      memset(si, 0, sizeof(*si));
+    }
+    svc_ctx->internal = si;
+  }
+  return (SvcInternal_t *)svc_ctx->internal;
+}
+
+static const SvcInternal_t *get_const_svc_internal(
+    const SvcContext *svc_ctx) {
+  if (svc_ctx == NULL) return NULL;
+  return (const SvcInternal_t *)svc_ctx->internal;
+}
+
+static void svc_log_reset(SvcContext *svc_ctx) {
+  SvcInternal_t *const si = (SvcInternal_t *)svc_ctx->internal;
+  si->message_buffer[0] = '\0';
+}
+
+static int svc_log(SvcContext *svc_ctx, SVC_LOG_LEVEL level,
+                   const char *fmt, ...) {
+  char buf[512];
+  int retval = 0;
+  va_list ap;
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+
+  if (level > svc_ctx->log_level) {
+    return retval;
+  }
+
+  va_start(ap, fmt);
+  retval = vsnprintf(buf, sizeof(buf), fmt, ap);
+  va_end(ap);
+
+  if (svc_ctx->log_print) {
+    printf("%s", buf);
+  } else {
+    strncat(si->message_buffer, buf,
+            sizeof(si->message_buffer) - strlen(si->message_buffer) - 1);
+  }
+
+  if (level == SVC_LOG_ERROR) {
+    si->codec_ctx->err_detail = si->message_buffer;
+  }
+  return retval;
+}
+
+static vpx_codec_err_t extract_option(LAYER_OPTION_TYPE type,
+                                      char *input,
+                                      int *value0,
+                                      int *value1) {
+  if (type == SCALE_FACTOR) {
+    *value0 = strtol(input, &input, 10);
+    if (*input++ != '/')
+      return VPX_CODEC_INVALID_PARAM;
+    *value1 = strtol(input, &input, 10);
+
+    if (*value0 < option_min_values[SCALE_FACTOR] ||
+        *value1 < option_min_values[SCALE_FACTOR] ||
+        *value0 > option_max_values[SCALE_FACTOR] ||
+        *value1 > option_max_values[SCALE_FACTOR] ||
+        *value0 > *value1)  // num shouldn't be greater than den
+      return VPX_CODEC_INVALID_PARAM;
+  } else {
+    *value0 = atoi(input);
+    if (*value0 < option_min_values[type] ||
+        *value0 > option_max_values[type])
+      return VPX_CODEC_INVALID_PARAM;
+  }
+  return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t parse_layer_options_from_string(SvcContext *svc_ctx,
+                                                       LAYER_OPTION_TYPE type,
+                                                       const char *input,
+                                                       int *option0,
+                                                       int *option1) {
+  int i;
+  vpx_codec_err_t res = VPX_CODEC_OK;
+  char *input_string;
+  char *token;
+  const char *delim = ",";
+  char *save_ptr;
+
+  if (input == NULL || option0 == NULL ||
+      (option1 == NULL && type == SCALE_FACTOR))
+    return VPX_CODEC_INVALID_PARAM;
+
+  input_string = strdup(input);
+  token = strtok_r(input_string, delim, &save_ptr);
+  for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+    if (token != NULL) {
+      res = extract_option(type, token, option0 + i, option1 + i);
+      if (res != VPX_CODEC_OK)
+        break;
+      token = strtok_r(NULL, delim, &save_ptr);
+    } else {
+      break;
+    }
+  }
+  if (res == VPX_CODEC_OK && i != svc_ctx->spatial_layers) {
+    svc_log(svc_ctx, SVC_LOG_ERROR,
+            "svc: layer params type: %d    %d values required, "
+            "but only %d specified\n", type, svc_ctx->spatial_layers, i);
+    res = VPX_CODEC_INVALID_PARAM;
+  }
+  free(input_string);
+  return res;
+}
+
+/**
+ * Parse SVC encoding options
+ * Format: encoding-mode=<svc_mode>,layers=<layer_count>
+ *         scale-factors=<n1>/<d1>,<n2>/<d2>,...
+ *         quantizers=<q1>,<q2>,...
+ * svc_mode = [i|ip|alt_ip|gf]
+ */
+static vpx_codec_err_t parse_options(SvcContext *svc_ctx, const char *options) {
+  char *input_string;
+  char *option_name;
+  char *option_value;
+  char *input_ptr;
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+  vpx_codec_err_t res = VPX_CODEC_OK;
+  int i, alt_ref_enabled = 0;
+
+  if (options == NULL) return VPX_CODEC_OK;
+  input_string = strdup(options);
+
+  // parse option name
+  option_name = strtok_r(input_string, "=", &input_ptr);
+  while (option_name != NULL) {
+    // parse option value
+    option_value = strtok_r(NULL, " ", &input_ptr);
+    if (option_value == NULL) {
+      svc_log(svc_ctx, SVC_LOG_ERROR, "option missing value: %s\n",
+              option_name);
+      res = VPX_CODEC_INVALID_PARAM;
+      break;
+    }
+    if (strcmp("spatial-layers", option_name) == 0) {
+      svc_ctx->spatial_layers = atoi(option_value);
+    } else if (strcmp("temporal-layers", option_name) == 0) {
+      svc_ctx->temporal_layers = atoi(option_value);
+    } else if (strcmp("scale-factors", option_name) == 0) {
+      res = parse_layer_options_from_string(svc_ctx, SCALE_FACTOR, option_value,
+                                            si->svc_params.scaling_factor_num,
+                                            si->svc_params.scaling_factor_den);
+      if (res != VPX_CODEC_OK) break;
+    } else if (strcmp("max-quantizers", option_name) == 0) {
+      res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value,
+                                            si->svc_params.max_quantizers,
+                                            NULL);
+      if (res != VPX_CODEC_OK) break;
+    } else if (strcmp("min-quantizers", option_name) == 0) {
+      res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value,
+                                            si->svc_params.min_quantizers,
+                                            NULL);
+      if (res != VPX_CODEC_OK) break;
+    } else if (strcmp("auto-alt-refs", option_name) == 0) {
+      res = parse_layer_options_from_string(svc_ctx, AUTO_ALT_REF, option_value,
+                                            si->enable_auto_alt_ref, NULL);
+      if (res != VPX_CODEC_OK) break;
+    } else if (strcmp("bitrates", option_name) == 0) {
+      res = parse_layer_options_from_string(svc_ctx, BITRATE, option_value,
+                                            si->bitrates, NULL);
+      if (res != VPX_CODEC_OK) break;
+    } else if (strcmp("multi-frame-contexts", option_name) == 0) {
+      si->use_multiple_frame_contexts = atoi(option_value);
+    } else {
+      svc_log(svc_ctx, SVC_LOG_ERROR, "invalid option: %s\n", option_name);
+      res = VPX_CODEC_INVALID_PARAM;
+      break;
+    }
+    option_name = strtok_r(NULL, "=", &input_ptr);
+  }
+  free(input_string);
+
+  for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+    if (si->svc_params.max_quantizers[i] > MAX_QUANTIZER ||
+        si->svc_params.max_quantizers[i] < 0 ||
+        si->svc_params.min_quantizers[i] > si->svc_params.max_quantizers[i] ||
+        si->svc_params.min_quantizers[i] < 0)
+      res = VPX_CODEC_INVALID_PARAM;
+  }
+
+  if (si->use_multiple_frame_contexts &&
+      (svc_ctx->spatial_layers > 3 ||
+       svc_ctx->spatial_layers * svc_ctx->temporal_layers > 4))
+    res = VPX_CODEC_INVALID_PARAM;
+
+  for (i = 0; i < svc_ctx->spatial_layers; ++i)
+    alt_ref_enabled += si->enable_auto_alt_ref[i];
+  if (alt_ref_enabled > REF_FRAMES - svc_ctx->spatial_layers) {
+    svc_log(svc_ctx, SVC_LOG_ERROR,
+            "svc: auto alt ref: Maxinum %d(REF_FRAMES - layers) layers could"
+            "enabled auto alt reference frame, but % layers are enabled\n",
+            REF_FRAMES - svc_ctx->spatial_layers, alt_ref_enabled);
+    res = VPX_CODEC_INVALID_PARAM;
+  }
+
+  return res;
+}
+
+vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx,
+                                    const char *options) {
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+  if (svc_ctx == NULL || options == NULL || si == NULL) {
+    return VPX_CODEC_INVALID_PARAM;
+  }
+  strncpy(si->options, options, sizeof(si->options));
+  si->options[sizeof(si->options) - 1] = '\0';
+  return VPX_CODEC_OK;
+}
+
+void assign_layer_bitrates(const SvcContext *svc_ctx,
+                           vpx_codec_enc_cfg_t *const enc_cfg) {
+  int i;
+  const SvcInternal_t *const si = get_const_svc_internal(svc_ctx);
+  int sl, tl, spatial_layer_target;
+
+  if (svc_ctx->temporal_layering_mode != 0) {
+    if (si->bitrates[0] != 0) {
+      enc_cfg->rc_target_bitrate = 0;
+      for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) {
+        enc_cfg->ss_target_bitrate[sl*svc_ctx->temporal_layers] = 0;
+        for (tl = 0; tl < svc_ctx->temporal_layers; ++tl) {
+          enc_cfg->ss_target_bitrate[sl*svc_ctx->temporal_layers]
+              += (unsigned int)si->bitrates[sl * svc_ctx->temporal_layers + tl];
+          enc_cfg->layer_target_bitrate[sl*svc_ctx->temporal_layers + tl]
+              = si->bitrates[sl * svc_ctx->temporal_layers + tl];
+        }
+      }
+    } else {
+      float total = 0;
+      float alloc_ratio[VPX_MAX_LAYERS] = {0};
+
+      for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) {
+        if (si->svc_params.scaling_factor_den[sl] > 0) {
+          alloc_ratio[sl] = (float)(si->svc_params.scaling_factor_num[sl] *
+              1.0 / si->svc_params.scaling_factor_den[sl]);
+          total += alloc_ratio[sl];
+        }
+      }
+
+      for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) {
+        enc_cfg->ss_target_bitrate[sl] = spatial_layer_target =
+            (unsigned int)(enc_cfg->rc_target_bitrate *
+                alloc_ratio[sl] / total);
+        if (svc_ctx->temporal_layering_mode == 3) {
+          enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers] =
+              spatial_layer_target >> 1;
+          enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 1] =
+              (spatial_layer_target >> 1) + (spatial_layer_target >> 2);
+          enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 2] =
+              spatial_layer_target;
+        } else if (svc_ctx->temporal_layering_mode == 2) {
+          enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers] =
+              spatial_layer_target * 2 / 3;
+          enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 1] =
+              spatial_layer_target;
+        } else {
+          // User should explicitly assign bitrates in this case.
+          assert(0);
+        }
+      }
+    }
+  } else {
+    if (si->bitrates[0] != 0) {
+      enc_cfg->rc_target_bitrate = 0;
+      for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+        enc_cfg->ss_target_bitrate[i] = (unsigned int)si->bitrates[i];
+        enc_cfg->rc_target_bitrate += si->bitrates[i];
+      }
+    } else {
+      float total = 0;
+      float alloc_ratio[VPX_MAX_LAYERS] = {0};
+
+      for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+        if (si->svc_params.scaling_factor_den[i] > 0) {
+          alloc_ratio[i] = (float)(si->svc_params.scaling_factor_num[i] * 1.0 /
+                                   si->svc_params.scaling_factor_den[i]);
+
+          alloc_ratio[i] *= alloc_ratio[i];
+          total += alloc_ratio[i];
+        }
+      }
+      for (i = 0; i < VPX_SS_MAX_LAYERS; ++i) {
+        if (total > 0) {
+          enc_cfg->layer_target_bitrate[i] = (unsigned int)
+              (enc_cfg->rc_target_bitrate * alloc_ratio[i] / total);
+        }
+      }
+    }
+  }
+}
+
+vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
+                             vpx_codec_iface_t *iface,
+                             vpx_codec_enc_cfg_t *enc_cfg) {
+  vpx_codec_err_t res;
+  int i;
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+  if (svc_ctx == NULL || codec_ctx == NULL || iface == NULL ||
+      enc_cfg == NULL) {
+    return VPX_CODEC_INVALID_PARAM;
+  }
+  if (si == NULL) return VPX_CODEC_MEM_ERROR;
+
+  si->codec_ctx = codec_ctx;
+
+  si->width = enc_cfg->g_w;
+  si->height = enc_cfg->g_h;
+
+  if (enc_cfg->kf_max_dist < 2) {
+    svc_log(svc_ctx, SVC_LOG_ERROR, "key frame distance too small: %d\n",
+            enc_cfg->kf_max_dist);
+    return VPX_CODEC_INVALID_PARAM;
+  }
+  si->kf_dist = enc_cfg->kf_max_dist;
+
+  if (svc_ctx->spatial_layers == 0)
+    svc_ctx->spatial_layers = VPX_SS_DEFAULT_LAYERS;
+  if (svc_ctx->spatial_layers < 1 ||
+      svc_ctx->spatial_layers > VPX_SS_MAX_LAYERS) {
+    svc_log(svc_ctx, SVC_LOG_ERROR, "spatial layers: invalid value: %d\n",
+            svc_ctx->spatial_layers);
+    return VPX_CODEC_INVALID_PARAM;
+  }
+
+  // Note: temporal_layering_mode only applies to one-pass CBR
+  // si->svc_params.temporal_layering_mode = svc_ctx->temporal_layering_mode;
+  if (svc_ctx->temporal_layering_mode == 3) {
+    svc_ctx->temporal_layers = 3;
+  } else if (svc_ctx->temporal_layering_mode == 2) {
+    svc_ctx->temporal_layers = 2;
+  }
+
+  for (i = 0; i < VPX_SS_MAX_LAYERS; ++i) {
+    si->svc_params.max_quantizers[i] = MAX_QUANTIZER;
+    si->svc_params.min_quantizers[i] = 0;
+    si->svc_params.scaling_factor_num[i] = DEFAULT_SCALE_FACTORS_NUM[i];
+    si->svc_params.scaling_factor_den[i] = DEFAULT_SCALE_FACTORS_DEN[i];
+  }
+
+  // Parse aggregate command line options. Options must start with
+  // "layers=xx" then followed by other options
+  res = parse_options(svc_ctx, si->options);
+  if (res != VPX_CODEC_OK) return res;
+
+  if (svc_ctx->spatial_layers < 1)
+    svc_ctx->spatial_layers = 1;
+  if (svc_ctx->spatial_layers > VPX_SS_MAX_LAYERS)
+    svc_ctx->spatial_layers = VPX_SS_MAX_LAYERS;
+
+  if (svc_ctx->temporal_layers < 1)
+    svc_ctx->temporal_layers = 1;
+  if (svc_ctx->temporal_layers > VPX_TS_MAX_LAYERS)
+    svc_ctx->temporal_layers = VPX_TS_MAX_LAYERS;
+
+  if (svc_ctx->temporal_layers * svc_ctx->spatial_layers > VPX_MAX_LAYERS) {
+      svc_log(svc_ctx, SVC_LOG_ERROR,
+          "spatial layers * temporal layers exceeds the maximum number of "
+          "allowed layers of %d\n",
+          svc_ctx->spatial_layers * svc_ctx->temporal_layers,
+          (int) VPX_MAX_LAYERS);
+      return VPX_CODEC_INVALID_PARAM;
+  }
+  assign_layer_bitrates(svc_ctx, enc_cfg);
+
+#if CONFIG_SPATIAL_SVC
+  for (i = 0; i < svc_ctx->spatial_layers; ++i)
+    enc_cfg->ss_enable_auto_alt_ref[i] = si->enable_auto_alt_ref[i];
+#endif
+
+  if (svc_ctx->temporal_layers > 1) {
+    int i;
+    for (i = 0; i < svc_ctx->temporal_layers; ++i) {
+      enc_cfg->ts_target_bitrate[i] = enc_cfg->rc_target_bitrate /
+                                      svc_ctx->temporal_layers;
+      enc_cfg->ts_rate_decimator[i] = 1 << (svc_ctx->temporal_layers - 1 - i);
+    }
+  }
+
+  if (svc_ctx->threads)
+    enc_cfg->g_threads = svc_ctx->threads;
+
+  // Modify encoder configuration
+  enc_cfg->ss_number_layers = svc_ctx->spatial_layers;
+  enc_cfg->ts_number_layers = svc_ctx->temporal_layers;
+
+  if (enc_cfg->rc_end_usage == VPX_CBR) {
+    enc_cfg->rc_resize_allowed = 0;
+    enc_cfg->rc_min_quantizer = 2;
+    enc_cfg->rc_max_quantizer = 63;
+    enc_cfg->rc_undershoot_pct = 50;
+    enc_cfg->rc_overshoot_pct = 50;
+    enc_cfg->rc_buf_initial_sz = 20;
+    enc_cfg->rc_buf_optimal_sz = 600;
+    enc_cfg->rc_buf_sz = 1000;
+  }
+
+  if (enc_cfg->g_error_resilient == 0 && si->use_multiple_frame_contexts == 0)
+    enc_cfg->g_error_resilient = 1;
+
+  // Initialize codec
+  res = vpx_codec_enc_init(codec_ctx, iface, enc_cfg, VPX_CODEC_USE_PSNR);
+  if (res != VPX_CODEC_OK) {
+    svc_log(svc_ctx, SVC_LOG_ERROR, "svc_enc_init error\n");
+    return res;
+  }
+
+  vpx_codec_control(codec_ctx, VP9E_SET_SVC, 1);
+  vpx_codec_control(codec_ctx, VP9E_SET_SVC_PARAMETERS, &si->svc_params);
+
+  return VPX_CODEC_OK;
+}
+
+/**
+ * Encode a frame into multiple layers
+ * Create a superframe containing the individual layers
+ */
+vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx,
+                               vpx_codec_ctx_t *codec_ctx,
+                               struct vpx_image *rawimg,
+                               vpx_codec_pts_t pts,
+                               int64_t duration, int deadline) {
+  vpx_codec_err_t res;
+  vpx_codec_iter_t iter;
+  const vpx_codec_cx_pkt_t *cx_pkt;
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+  if (svc_ctx == NULL || codec_ctx == NULL || si == NULL) {
+    return VPX_CODEC_INVALID_PARAM;
+  }
+
+  svc_log_reset(svc_ctx);
+
+  res = vpx_codec_encode(codec_ctx, rawimg, pts, (uint32_t)duration, 0,
+                         deadline);
+  if (res != VPX_CODEC_OK) {
+    return res;
+  }
+  // save compressed data
+  iter = NULL;
+  while ((cx_pkt = vpx_codec_get_cx_data(codec_ctx, &iter))) {
+    switch (cx_pkt->kind) {
+#if VPX_ENCODER_ABI_VERSION > (5 + VPX_CODEC_ABI_VERSION)
+#if CONFIG_SPATIAL_SVC
+      case VPX_CODEC_SPATIAL_SVC_LAYER_PSNR: {
+        int i;
+        for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+          int j;
+          svc_log(svc_ctx, SVC_LOG_DEBUG,
+                  "SVC frame: %d, layer: %d, PSNR(Total/Y/U/V): "
+                  "%2.3f  %2.3f  %2.3f  %2.3f \n",
+                  si->psnr_pkt_received, i,
+                  cx_pkt->data.layer_psnr[i].psnr[0],
+                  cx_pkt->data.layer_psnr[i].psnr[1],
+                  cx_pkt->data.layer_psnr[i].psnr[2],
+                  cx_pkt->data.layer_psnr[i].psnr[3]);
+          svc_log(svc_ctx, SVC_LOG_DEBUG,
+                  "SVC frame: %d, layer: %d, SSE(Total/Y/U/V): "
+                  "%2.3f  %2.3f  %2.3f  %2.3f \n",
+                  si->psnr_pkt_received, i,
+                  cx_pkt->data.layer_psnr[i].sse[0],
+                  cx_pkt->data.layer_psnr[i].sse[1],
+                  cx_pkt->data.layer_psnr[i].sse[2],
+                  cx_pkt->data.layer_psnr[i].sse[3]);
+
+          for (j = 0; j < COMPONENTS; ++j) {
+            si->psnr_sum[i][j] +=
+                cx_pkt->data.layer_psnr[i].psnr[j];
+            si->sse_sum[i][j] += cx_pkt->data.layer_psnr[i].sse[j];
+          }
+        }
+        ++si->psnr_pkt_received;
+        break;
+      }
+      case VPX_CODEC_SPATIAL_SVC_LAYER_SIZES: {
+        int i;
+        for (i = 0; i < svc_ctx->spatial_layers; ++i)
+          si->bytes_sum[i] += cx_pkt->data.layer_sizes[i];
+        break;
+      }
+#endif
+#endif
+      default: {
+        break;
+      }
+    }
+  }
+
+  return VPX_CODEC_OK;
+}
+
+const char *vpx_svc_get_message(const SvcContext *svc_ctx) {
+  const SvcInternal_t *const si = get_const_svc_internal(svc_ctx);
+  if (svc_ctx == NULL || si == NULL) return NULL;
+  return si->message_buffer;
+}
+
+static double calc_psnr(double d) {
+  if (d == 0) return 100;
+  return -10.0 * log(d) / log(10.0);
+}
+
+// dump accumulated statistics and reset accumulated values
+const char *vpx_svc_dump_statistics(SvcContext *svc_ctx) {
+  int number_of_frames;
+  int i, j;
+  uint32_t bytes_total = 0;
+  double scale[COMPONENTS];
+  double psnr[COMPONENTS];
+  double mse[COMPONENTS];
+  double y_scale;
+
+  SvcInternal_t *const si = get_svc_internal(svc_ctx);
+  if (svc_ctx == NULL || si == NULL) return NULL;
+
+  svc_log_reset(svc_ctx);
+
+  number_of_frames = si->psnr_pkt_received;
+  if (number_of_frames <= 0) return vpx_svc_get_message(svc_ctx);
+
+  svc_log(svc_ctx, SVC_LOG_INFO, "\n");
+  for (i = 0; i < svc_ctx->spatial_layers; ++i) {
+
+    svc_log(svc_ctx, SVC_LOG_INFO,
+            "Layer %d Average PSNR=[%2.3f, %2.3f, %2.3f, %2.3f], Bytes=[%u]\n",
+            i, (double)si->psnr_sum[i][0] / number_of_frames,
+            (double)si->psnr_sum[i][1] / number_of_frames,
+            (double)si->psnr_sum[i][2] / number_of_frames,
+            (double)si->psnr_sum[i][3] / number_of_frames, si->bytes_sum[i]);
+    // the following psnr calculation is deduced from ffmpeg.c#print_report
+    y_scale = si->width * si->height * 255.0 * 255.0 * number_of_frames;
+    scale[1] = y_scale;
+    scale[2] = scale[3] = y_scale / 4;  // U or V
+    scale[0] = y_scale * 1.5;           // total
+
+    for (j = 0; j < COMPONENTS; j++) {
+      psnr[j] = calc_psnr(si->sse_sum[i][j] / scale[j]);
+      mse[j] = si->sse_sum[i][j] * 255.0 * 255.0 / scale[j];
+    }
+    svc_log(svc_ctx, SVC_LOG_INFO,
+            "Layer %d Overall PSNR=[%2.3f, %2.3f, %2.3f, %2.3f]\n", i, psnr[0],
+            psnr[1], psnr[2], psnr[3]);
+    svc_log(svc_ctx, SVC_LOG_INFO,
+            "Layer %d Overall MSE=[%2.3f, %2.3f, %2.3f, %2.3f]\n", i, mse[0],
+            mse[1], mse[2], mse[3]);
+
+    bytes_total += si->bytes_sum[i];
+    // Clear sums for next time.
+    si->bytes_sum[i] = 0;
+    for (j = 0; j < COMPONENTS; ++j) {
+      si->psnr_sum[i][j] = 0;
+      si->sse_sum[i][j] = 0;
+    }
+  }
+
+  // only display statistics once
+  si->psnr_pkt_received = 0;
+
+  svc_log(svc_ctx, SVC_LOG_INFO, "Total Bytes=[%u]\n", bytes_total);
+  return vpx_svc_get_message(svc_ctx);
+}
+
+void vpx_svc_release(SvcContext *svc_ctx) {
+  SvcInternal_t *si;
+  if (svc_ctx == NULL) return;
+  // do not use get_svc_internal as it will unnecessarily allocate an
+  // SvcInternal_t if it was not already allocated
+  si = (SvcInternal_t *)svc_ctx->internal;
+  if (si != NULL) {
+    free(si);
+    svc_ctx->internal = NULL;
+  }
+}
+
diff --git a/media/libvpx/vpx/src/vpx_codec.c b/media/libvpx/vpx/src/vpx_codec.c
new file mode 100644
index 000000000..5a495ce81
--- /dev/null
+++ b/media/libvpx/vpx/src/vpx_codec.c
@@ -0,0 +1,158 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\file
+ * \brief Provides the high level interface to wrap decoder algorithms.
+ *
+ */
+#include <stdarg.h>
+#include <stdlib.h>
+#include "vpx/vpx_integer.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "vpx_version.h"
+
+#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
+
+int vpx_codec_version(void) {
+  return VERSION_PACKED;
+}
+
+
+const char *vpx_codec_version_str(void) {
+  return VERSION_STRING_NOSP;
+}
+
+
+const char *vpx_codec_version_extra_str(void) {
+  return VERSION_EXTRA;
+}
+
+
+const char *vpx_codec_iface_name(vpx_codec_iface_t *iface) {
+  return iface ? iface->name : "<invalid interface>";
+}
+
+const char *vpx_codec_err_to_string(vpx_codec_err_t  err) {
+  switch (err) {
+    case VPX_CODEC_OK:
+      return "Success";
+    case VPX_CODEC_ERROR:
+      return "Unspecified internal error";
+    case VPX_CODEC_MEM_ERROR:
+      return "Memory allocation error";
+    case VPX_CODEC_ABI_MISMATCH:
+      return "ABI version mismatch";
+    case VPX_CODEC_INCAPABLE:
+      return "Codec does not implement requested capability";
+    case VPX_CODEC_UNSUP_BITSTREAM:
+      return "Bitstream not supported by this decoder";
+    case VPX_CODEC_UNSUP_FEATURE:
+      return "Bitstream required feature not supported by this decoder";
+    case VPX_CODEC_CORRUPT_FRAME:
+      return "Corrupt frame detected";
+    case  VPX_CODEC_INVALID_PARAM:
+      return "Invalid parameter";
+    case VPX_CODEC_LIST_END:
+      return "End of iterated list";
+  }
+
+  return "Unrecognized error code";
+}
+
+const char *vpx_codec_error(vpx_codec_ctx_t  *ctx) {
+  return (ctx) ? vpx_codec_err_to_string(ctx->err)
+         : vpx_codec_err_to_string(VPX_CODEC_INVALID_PARAM);
+}
+
+const char *vpx_codec_error_detail(vpx_codec_ctx_t  *ctx) {
+  if (ctx && ctx->err)
+    return ctx->priv ? ctx->priv->err_detail : ctx->err_detail;
+
+  return NULL;
+}
+
+
+vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx) {
+  vpx_codec_err_t res;
+
+  if (!ctx)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv)
+    res = VPX_CODEC_ERROR;
+  else {
+    ctx->iface->destroy((vpx_codec_alg_priv_t *)ctx->priv);
+
+    ctx->iface = NULL;
+    ctx->name = NULL;
+    ctx->priv = NULL;
+    res = VPX_CODEC_OK;
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+vpx_codec_caps_t vpx_codec_get_caps(vpx_codec_iface_t *iface) {
+  return (iface) ? iface->caps : 0;
+}
+
+
+vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t  *ctx,
+                                   int               ctrl_id,
+                                   ...) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !ctrl_id)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv || !ctx->iface->ctrl_maps)
+    res = VPX_CODEC_ERROR;
+  else {
+    vpx_codec_ctrl_fn_map_t *entry;
+
+    res = VPX_CODEC_ERROR;
+
+    for (entry = ctx->iface->ctrl_maps; entry && entry->fn; entry++) {
+      if (!entry->ctrl_id || entry->ctrl_id == ctrl_id) {
+        va_list  ap;
+
+        va_start(ap, ctrl_id);
+        res = entry->fn((vpx_codec_alg_priv_t *)ctx->priv, ap);
+        va_end(ap);
+        break;
+      }
+    }
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+void vpx_internal_error(struct vpx_internal_error_info *info,
+                        vpx_codec_err_t                 error,
+                        const char                     *fmt,
+                        ...) {
+  va_list ap;
+
+  info->error_code = error;
+  info->has_detail = 0;
+
+  if (fmt) {
+    size_t  sz = sizeof(info->detail);
+
+    info->has_detail = 1;
+    va_start(ap, fmt);
+    vsnprintf(info->detail, sz - 1, fmt, ap);
+    va_end(ap);
+    info->detail[sz - 1] = '\0';
+  }
+
+  if (info->setjmp)
+    longjmp(info->jmp, info->error_code);
+}
diff --git a/media/libvpx/vpx/src/vpx_decoder.c b/media/libvpx/vpx/src/vpx_decoder.c
new file mode 100644
index 000000000..802d8edd8
--- /dev/null
+++ b/media/libvpx/vpx/src/vpx_decoder.c
@@ -0,0 +1,197 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\file
+ * \brief Provides the high level interface to wrap decoder algorithms.
+ *
+ */
+#include <string.h>
+#include "vpx/internal/vpx_codec_internal.h"
+
+#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
+
+static vpx_codec_alg_priv_t *get_alg_priv(vpx_codec_ctx_t *ctx) {
+  return (vpx_codec_alg_priv_t *)ctx->priv;
+}
+
+vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t      *ctx,
+                                       vpx_codec_iface_t    *iface,
+                                       const vpx_codec_dec_cfg_t *cfg,
+                                       vpx_codec_flags_t     flags,
+                                       int                   ver) {
+  vpx_codec_err_t res;
+
+  if (ver != VPX_DECODER_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!ctx || !iface)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if ((flags & VPX_CODEC_USE_POSTPROC) && !(iface->caps & VPX_CODEC_CAP_POSTPROC))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_ERROR_CONCEALMENT) &&
+           !(iface->caps & VPX_CODEC_CAP_ERROR_CONCEALMENT))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_INPUT_FRAGMENTS) &&
+           !(iface->caps & VPX_CODEC_CAP_INPUT_FRAGMENTS))
+    res = VPX_CODEC_INCAPABLE;
+  else if (!(iface->caps & VPX_CODEC_CAP_DECODER))
+    res = VPX_CODEC_INCAPABLE;
+  else {
+    memset(ctx, 0, sizeof(*ctx));
+    ctx->iface = iface;
+    ctx->name = iface->name;
+    ctx->priv = NULL;
+    ctx->init_flags = flags;
+    ctx->config.dec = cfg;
+
+    res = ctx->iface->init(ctx, NULL);
+    if (res) {
+      ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL;
+      vpx_codec_destroy(ctx);
+    }
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t       *iface,
+                                           const uint8_t         *data,
+                                           unsigned int           data_sz,
+                                           vpx_codec_stream_info_t *si) {
+  vpx_codec_err_t res;
+
+  if (!iface || !data || !data_sz || !si
+      || si->sz < sizeof(vpx_codec_stream_info_t))
+    res = VPX_CODEC_INVALID_PARAM;
+  else {
+    /* Set default/unknown values */
+    si->w = 0;
+    si->h = 0;
+
+    res = iface->dec.peek_si(data, data_sz, si);
+  }
+
+  return res;
+}
+
+
+vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t         *ctx,
+                                          vpx_codec_stream_info_t *si) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !si || si->sz < sizeof(vpx_codec_stream_info_t))
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv)
+    res = VPX_CODEC_ERROR;
+  else {
+    /* Set default/unknown values */
+    si->w = 0;
+    si->h = 0;
+
+    res = ctx->iface->dec.get_si(get_alg_priv(ctx), si);
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t    *ctx,
+                                 const uint8_t        *data,
+                                 unsigned int    data_sz,
+                                 void       *user_priv,
+                                 long        deadline) {
+  vpx_codec_err_t res;
+
+  /* Sanity checks */
+  /* NULL data ptr allowed if data_sz is 0 too */
+  if (!ctx || (!data && data_sz) || (data && !data_sz))
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv)
+    res = VPX_CODEC_ERROR;
+  else {
+    res = ctx->iface->dec.decode(get_alg_priv(ctx), data, data_sz, user_priv,
+                                 deadline);
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t  *ctx,
+                                 vpx_codec_iter_t *iter) {
+  vpx_image_t *img;
+
+  if (!ctx || !iter || !ctx->iface || !ctx->priv)
+    img = NULL;
+  else
+    img = ctx->iface->dec.get_frame(get_alg_priv(ctx), iter);
+
+  return img;
+}
+
+
+vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t             *ctx,
+                                                vpx_codec_put_frame_cb_fn_t  cb,
+                                                void                      *user_priv) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !cb)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv
+           || !(ctx->iface->caps & VPX_CODEC_CAP_PUT_FRAME))
+    res = VPX_CODEC_ERROR;
+  else {
+    ctx->priv->dec.put_frame_cb.u.put_frame = cb;
+    ctx->priv->dec.put_frame_cb.user_priv = user_priv;
+    res = VPX_CODEC_OK;
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t             *ctx,
+                                                vpx_codec_put_slice_cb_fn_t  cb,
+                                                void                      *user_priv) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !cb)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv
+           || !(ctx->iface->caps & VPX_CODEC_CAP_PUT_SLICE))
+    res = VPX_CODEC_ERROR;
+  else {
+    ctx->priv->dec.put_slice_cb.u.put_slice = cb;
+    ctx->priv->dec.put_slice_cb.user_priv = user_priv;
+    res = VPX_CODEC_OK;
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+vpx_codec_err_t vpx_codec_set_frame_buffer_functions(
+    vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get,
+    vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !cb_get || !cb_release) {
+    res = VPX_CODEC_INVALID_PARAM;
+  } else if (!ctx->iface || !ctx->priv ||
+             !(ctx->iface->caps & VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER)) {
+    res = VPX_CODEC_ERROR;
+  } else {
+    res = ctx->iface->dec.set_fb_fn(get_alg_priv(ctx), cb_get, cb_release,
+                                    cb_priv);
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
diff --git a/media/libvpx/vpx/src/vpx_encoder.c b/media/libvpx/vpx/src/vpx_encoder.c
new file mode 100644
index 000000000..cd10c411c
--- /dev/null
+++ b/media/libvpx/vpx/src/vpx_encoder.c
@@ -0,0 +1,401 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\file
+ * \brief Provides the high level interface to wrap encoder algorithms.
+ *
+ */
+#include <limits.h>
+#include <string.h>
+#include "vpx_config.h"
+#include "vpx/internal/vpx_codec_internal.h"
+
+#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
+
+static vpx_codec_alg_priv_t *get_alg_priv(vpx_codec_ctx_t *ctx) {
+  return (vpx_codec_alg_priv_t *)ctx->priv;
+}
+
+vpx_codec_err_t vpx_codec_enc_init_ver(vpx_codec_ctx_t      *ctx,
+                                       vpx_codec_iface_t    *iface,
+                                       const vpx_codec_enc_cfg_t *cfg,
+                                       vpx_codec_flags_t     flags,
+                                       int                   ver) {
+  vpx_codec_err_t res;
+
+  if (ver != VPX_ENCODER_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!ctx || !iface || !cfg)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!(iface->caps & VPX_CODEC_CAP_ENCODER))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_PSNR)
+           && !(iface->caps & VPX_CODEC_CAP_PSNR))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_OUTPUT_PARTITION)
+           && !(iface->caps & VPX_CODEC_CAP_OUTPUT_PARTITION))
+    res = VPX_CODEC_INCAPABLE;
+  else {
+    ctx->iface = iface;
+    ctx->name = iface->name;
+    ctx->priv = NULL;
+    ctx->init_flags = flags;
+    ctx->config.enc = cfg;
+    res = ctx->iface->init(ctx, NULL);
+
+    if (res) {
+      ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL;
+      vpx_codec_destroy(ctx);
+    }
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+vpx_codec_err_t vpx_codec_enc_init_multi_ver(vpx_codec_ctx_t      *ctx,
+                                             vpx_codec_iface_t    *iface,
+                                             vpx_codec_enc_cfg_t  *cfg,
+                                             int                   num_enc,
+                                             vpx_codec_flags_t     flags,
+                                             vpx_rational_t       *dsf,
+                                             int                   ver) {
+  vpx_codec_err_t res = VPX_CODEC_OK;
+
+  if (ver != VPX_ENCODER_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!ctx || !iface || !cfg || (num_enc > 16 || num_enc < 1))
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION)
+    res = VPX_CODEC_ABI_MISMATCH;
+  else if (!(iface->caps & VPX_CODEC_CAP_ENCODER))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_PSNR)
+           && !(iface->caps & VPX_CODEC_CAP_PSNR))
+    res = VPX_CODEC_INCAPABLE;
+  else if ((flags & VPX_CODEC_USE_OUTPUT_PARTITION)
+           && !(iface->caps & VPX_CODEC_CAP_OUTPUT_PARTITION))
+    res = VPX_CODEC_INCAPABLE;
+  else {
+    int i;
+    void *mem_loc = NULL;
+
+    if (!(res = iface->enc.mr_get_mem_loc(cfg, &mem_loc))) {
+      for (i = 0; i < num_enc; i++) {
+        vpx_codec_priv_enc_mr_cfg_t mr_cfg;
+
+        /* Validate down-sampling factor. */
+        if (dsf->num < 1 || dsf->num > 4096 || dsf->den < 1 ||
+            dsf->den > dsf->num) {
+          res = VPX_CODEC_INVALID_PARAM;
+          break;
+        }
+
+        mr_cfg.mr_low_res_mode_info = mem_loc;
+        mr_cfg.mr_total_resolutions = num_enc;
+        mr_cfg.mr_encoder_id = num_enc - 1 - i;
+        mr_cfg.mr_down_sampling_factor.num = dsf->num;
+        mr_cfg.mr_down_sampling_factor.den = dsf->den;
+
+        /* Force Key-frame synchronization. Namely, encoder at higher
+         * resolution always use the same frame_type chosen by the
+         * lowest-resolution encoder.
+         */
+        if (mr_cfg.mr_encoder_id)
+          cfg->kf_mode = VPX_KF_DISABLED;
+
+        ctx->iface = iface;
+        ctx->name = iface->name;
+        ctx->priv = NULL;
+        ctx->init_flags = flags;
+        ctx->config.enc = cfg;
+        res = ctx->iface->init(ctx, &mr_cfg);
+
+        if (res) {
+          const char *error_detail =
+            ctx->priv ? ctx->priv->err_detail : NULL;
+          /* Destroy current ctx */
+          ctx->err_detail = error_detail;
+          vpx_codec_destroy(ctx);
+
+          /* Destroy already allocated high-level ctx */
+          while (i) {
+            ctx--;
+            ctx->err_detail = error_detail;
+            vpx_codec_destroy(ctx);
+            i--;
+          }
+        }
+
+        if (res)
+          break;
+
+        ctx++;
+        cfg++;
+        dsf++;
+      }
+      ctx--;
+    }
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+vpx_codec_err_t  vpx_codec_enc_config_default(vpx_codec_iface_t    *iface,
+                                              vpx_codec_enc_cfg_t  *cfg,
+                                              unsigned int          usage) {
+  vpx_codec_err_t res;
+  vpx_codec_enc_cfg_map_t *map;
+  int i;
+
+  if (!iface || !cfg || usage > INT_MAX)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!(iface->caps & VPX_CODEC_CAP_ENCODER))
+    res = VPX_CODEC_INCAPABLE;
+  else {
+    res = VPX_CODEC_INVALID_PARAM;
+
+    for (i = 0; i < iface->enc.cfg_map_count; ++i) {
+      map = iface->enc.cfg_maps + i;
+      if (map->usage == (int)usage) {
+        *cfg = map->cfg;
+        cfg->g_usage = usage;
+        res = VPX_CODEC_OK;
+        break;
+      }
+    }
+  }
+
+  return res;
+}
+
+
+#if ARCH_X86 || ARCH_X86_64
+/* On X86, disable the x87 unit's internal 80 bit precision for better
+ * consistency with the SSE unit's 64 bit precision.
+ */
+#include "vpx_ports/x86.h"
+#define FLOATING_POINT_INIT() do {\
+    unsigned short x87_orig_mode = x87_set_double_precision();
+#define FLOATING_POINT_RESTORE() \
+  x87_set_control_word(x87_orig_mode); }while(0)
+
+
+#else
+static void FLOATING_POINT_INIT() {}
+static void FLOATING_POINT_RESTORE() {}
+#endif
+
+
+vpx_codec_err_t  vpx_codec_encode(vpx_codec_ctx_t            *ctx,
+                                  const vpx_image_t          *img,
+                                  vpx_codec_pts_t             pts,
+                                  unsigned long               duration,
+                                  vpx_enc_frame_flags_t       flags,
+                                  unsigned long               deadline) {
+  vpx_codec_err_t res = VPX_CODEC_OK;
+
+  if (!ctx || (img && !duration))
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!ctx->iface || !ctx->priv)
+    res = VPX_CODEC_ERROR;
+  else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
+    res = VPX_CODEC_INCAPABLE;
+  else {
+    unsigned int num_enc = ctx->priv->enc.total_encoders;
+
+    /* Execute in a normalized floating point environment, if the platform
+     * requires it.
+     */
+    FLOATING_POINT_INIT();
+
+    if (num_enc == 1)
+      res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
+                                   duration, flags, deadline);
+    else {
+      /* Multi-resolution encoding:
+       * Encode multi-levels in reverse order. For example,
+       * if mr_total_resolutions = 3, first encode level 2,
+       * then encode level 1, and finally encode level 0.
+       */
+      int i;
+
+      ctx += num_enc - 1;
+      if (img) img += num_enc - 1;
+
+      for (i = num_enc - 1; i >= 0; i--) {
+        if ((res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
+                                          duration, flags, deadline)))
+          break;
+
+        ctx--;
+        if (img) img--;
+      }
+      ctx++;
+    }
+
+    FLOATING_POINT_RESTORE();
+  }
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+const vpx_codec_cx_pkt_t *vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx,
+                                                vpx_codec_iter_t *iter) {
+  const vpx_codec_cx_pkt_t *pkt = NULL;
+
+  if (ctx) {
+    if (!iter)
+      ctx->err = VPX_CODEC_INVALID_PARAM;
+    else if (!ctx->iface || !ctx->priv)
+      ctx->err = VPX_CODEC_ERROR;
+    else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
+      ctx->err = VPX_CODEC_INCAPABLE;
+    else
+      pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
+  }
+
+  if (pkt && pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
+    // If the application has specified a destination area for the
+    // compressed data, and the codec has not placed the data there,
+    // and it fits, copy it.
+    vpx_codec_priv_t *const priv = ctx->priv;
+    char *const dst_buf = (char *)priv->enc.cx_data_dst_buf.buf;
+
+    if (dst_buf &&
+        pkt->data.raw.buf != dst_buf &&
+        pkt->data.raw.sz + priv->enc.cx_data_pad_before +
+            priv->enc.cx_data_pad_after <= priv->enc.cx_data_dst_buf.sz) {
+      vpx_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt;
+
+      memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf,
+             pkt->data.raw.sz);
+      *modified_pkt = *pkt;
+      modified_pkt->data.raw.buf = dst_buf;
+      modified_pkt->data.raw.sz += priv->enc.cx_data_pad_before +
+                                       priv->enc.cx_data_pad_after;
+      pkt = modified_pkt;
+    }
+
+    if (dst_buf == pkt->data.raw.buf) {
+      priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz;
+      priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz;
+    }
+  }
+
+  return pkt;
+}
+
+
+vpx_codec_err_t vpx_codec_set_cx_data_buf(vpx_codec_ctx_t       *ctx,
+                                          const vpx_fixed_buf_t *buf,
+                                          unsigned int           pad_before,
+                                          unsigned int           pad_after) {
+  if (!ctx || !ctx->priv)
+    return VPX_CODEC_INVALID_PARAM;
+
+  if (buf) {
+    ctx->priv->enc.cx_data_dst_buf = *buf;
+    ctx->priv->enc.cx_data_pad_before = pad_before;
+    ctx->priv->enc.cx_data_pad_after = pad_after;
+  } else {
+    ctx->priv->enc.cx_data_dst_buf.buf = NULL;
+    ctx->priv->enc.cx_data_dst_buf.sz = 0;
+    ctx->priv->enc.cx_data_pad_before = 0;
+    ctx->priv->enc.cx_data_pad_after = 0;
+  }
+
+  return VPX_CODEC_OK;
+}
+
+
+const vpx_image_t *vpx_codec_get_preview_frame(vpx_codec_ctx_t   *ctx) {
+  vpx_image_t *img = NULL;
+
+  if (ctx) {
+    if (!ctx->iface || !ctx->priv)
+      ctx->err = VPX_CODEC_ERROR;
+    else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
+      ctx->err = VPX_CODEC_INCAPABLE;
+    else if (!ctx->iface->enc.get_preview)
+      ctx->err = VPX_CODEC_INCAPABLE;
+    else
+      img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
+  }
+
+  return img;
+}
+
+
+vpx_fixed_buf_t *vpx_codec_get_global_headers(vpx_codec_ctx_t   *ctx) {
+  vpx_fixed_buf_t *buf = NULL;
+
+  if (ctx) {
+    if (!ctx->iface || !ctx->priv)
+      ctx->err = VPX_CODEC_ERROR;
+    else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
+      ctx->err = VPX_CODEC_INCAPABLE;
+    else if (!ctx->iface->enc.get_glob_hdrs)
+      ctx->err = VPX_CODEC_INCAPABLE;
+    else
+      buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
+  }
+
+  return buf;
+}
+
+
+vpx_codec_err_t  vpx_codec_enc_config_set(vpx_codec_ctx_t            *ctx,
+                                          const vpx_codec_enc_cfg_t  *cfg) {
+  vpx_codec_err_t res;
+
+  if (!ctx || !ctx->iface || !ctx->priv || !cfg)
+    res = VPX_CODEC_INVALID_PARAM;
+  else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
+    res = VPX_CODEC_INCAPABLE;
+  else
+    res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);
+
+  return SAVE_STATUS(ctx, res);
+}
+
+
+int vpx_codec_pkt_list_add(struct vpx_codec_pkt_list *list,
+                           const struct vpx_codec_cx_pkt *pkt) {
+  if (list->cnt < list->max) {
+    list->pkts[list->cnt++] = *pkt;
+    return 0;
+  }
+
+  return 1;
+}
+
+
+const vpx_codec_cx_pkt_t *vpx_codec_pkt_list_get(struct vpx_codec_pkt_list *list,
+                                                 vpx_codec_iter_t           *iter) {
+  const vpx_codec_cx_pkt_t *pkt;
+
+  if (!(*iter)) {
+    *iter = list->pkts;
+  }
+
+  pkt = (const vpx_codec_cx_pkt_t *)*iter;
+
+  if ((size_t)(pkt - list->pkts) < list->cnt)
+    *iter = pkt + 1;
+  else
+    pkt = NULL;
+
+  return pkt;
+}
diff --git a/media/libvpx/vpx/src/vpx_image.c b/media/libvpx/vpx/src/vpx_image.c
new file mode 100644
index 000000000..9aae12c79
--- /dev/null
+++ b/media/libvpx/vpx/src/vpx_image.c
@@ -0,0 +1,285 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "vpx/vpx_image.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_mem/vpx_mem.h"
+
+static vpx_image_t *img_alloc_helper(vpx_image_t *img,
+                                     vpx_img_fmt_t fmt,
+                                     unsigned int d_w,
+                                     unsigned int d_h,
+                                     unsigned int buf_align,
+                                     unsigned int stride_align,
+                                     unsigned char *img_data) {
+  unsigned int h, w, s, xcs, ycs, bps;
+  unsigned int stride_in_bytes;
+  int align;
+
+  /* Treat align==0 like align==1 */
+  if (!buf_align)
+    buf_align = 1;
+
+  /* Validate alignment (must be power of 2) */
+  if (buf_align & (buf_align - 1))
+    goto fail;
+
+  /* Treat align==0 like align==1 */
+  if (!stride_align)
+    stride_align = 1;
+
+  /* Validate alignment (must be power of 2) */
+  if (stride_align & (stride_align - 1))
+    goto fail;
+
+  /* Get sample size for this format */
+  switch (fmt) {
+    case VPX_IMG_FMT_RGB32:
+    case VPX_IMG_FMT_RGB32_LE:
+    case VPX_IMG_FMT_ARGB:
+    case VPX_IMG_FMT_ARGB_LE:
+      bps = 32;
+      break;
+    case VPX_IMG_FMT_RGB24:
+    case VPX_IMG_FMT_BGR24:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_RGB565:
+    case VPX_IMG_FMT_RGB565_LE:
+    case VPX_IMG_FMT_RGB555:
+    case VPX_IMG_FMT_RGB555_LE:
+    case VPX_IMG_FMT_UYVY:
+    case VPX_IMG_FMT_YUY2:
+    case VPX_IMG_FMT_YVYU:
+      bps = 16;
+      break;
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+      bps = 12;
+      break;
+    case VPX_IMG_FMT_I422:
+    case VPX_IMG_FMT_I440:
+      bps = 16;
+      break;
+    case VPX_IMG_FMT_I444:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_I42016:
+      bps = 24;
+      break;
+    case VPX_IMG_FMT_I42216:
+    case VPX_IMG_FMT_I44016:
+      bps = 32;
+      break;
+    case VPX_IMG_FMT_I44416:
+      bps = 48;
+      break;
+    default:
+      bps = 16;
+      break;
+  }
+
+  /* Get chroma shift values for this format */
+  switch (fmt) {
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+    case VPX_IMG_FMT_I422:
+    case VPX_IMG_FMT_I42016:
+    case VPX_IMG_FMT_I42216:
+      xcs = 1;
+      break;
+    default:
+      xcs = 0;
+      break;
+  }
+
+  switch (fmt) {
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_I440:
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+    case VPX_IMG_FMT_I42016:
+    case VPX_IMG_FMT_I44016:
+      ycs = 1;
+      break;
+    default:
+      ycs = 0;
+      break;
+  }
+
+  /* Calculate storage sizes given the chroma subsampling */
+  align = (1 << xcs) - 1;
+  w = (d_w + align) & ~align;
+  align = (1 << ycs) - 1;
+  h = (d_h + align) & ~align;
+  s = (fmt & VPX_IMG_FMT_PLANAR) ? w : bps * w / 8;
+  s = (s + stride_align - 1) & ~(stride_align - 1);
+  stride_in_bytes = (fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? s * 2 : s;
+
+  /* Allocate the new image */
+  if (!img) {
+    img = (vpx_image_t *)calloc(1, sizeof(vpx_image_t));
+
+    if (!img)
+      goto fail;
+
+    img->self_allocd = 1;
+  } else {
+    memset(img, 0, sizeof(vpx_image_t));
+  }
+
+  img->img_data = img_data;
+
+  if (!img_data) {
+    const uint64_t alloc_size = (fmt & VPX_IMG_FMT_PLANAR) ?
+                                (uint64_t)h * s * bps / 8 : (uint64_t)h * s;
+
+    if (alloc_size != (size_t)alloc_size)
+      goto fail;
+
+    img->img_data = (uint8_t *)vpx_memalign(buf_align, (size_t)alloc_size);
+    img->img_data_owner = 1;
+  }
+
+  if (!img->img_data)
+    goto fail;
+
+  img->fmt = fmt;
+  img->bit_depth = (fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 16 : 8;
+  img->w = w;
+  img->h = h;
+  img->x_chroma_shift = xcs;
+  img->y_chroma_shift = ycs;
+  img->bps = bps;
+
+  /* Calculate strides */
+  img->stride[VPX_PLANE_Y] = img->stride[VPX_PLANE_ALPHA] = stride_in_bytes;
+  img->stride[VPX_PLANE_U] = img->stride[VPX_PLANE_V] = stride_in_bytes >> xcs;
+
+  /* Default viewport to entire image */
+  if (!vpx_img_set_rect(img, 0, 0, d_w, d_h))
+    return img;
+
+fail:
+  vpx_img_free(img);
+  return NULL;
+}
+
+vpx_image_t *vpx_img_alloc(vpx_image_t  *img,
+                           vpx_img_fmt_t fmt,
+                           unsigned int  d_w,
+                           unsigned int  d_h,
+                           unsigned int  align) {
+  return img_alloc_helper(img, fmt, d_w, d_h, align, align, NULL);
+}
+
+vpx_image_t *vpx_img_wrap(vpx_image_t  *img,
+                          vpx_img_fmt_t fmt,
+                          unsigned int  d_w,
+                          unsigned int  d_h,
+                          unsigned int  stride_align,
+                          unsigned char       *img_data) {
+  /* By setting buf_align = 1, we don't change buffer alignment in this
+   * function. */
+  return img_alloc_helper(img, fmt, d_w, d_h, 1, stride_align, img_data);
+}
+
+int vpx_img_set_rect(vpx_image_t  *img,
+                     unsigned int  x,
+                     unsigned int  y,
+                     unsigned int  w,
+                     unsigned int  h) {
+  unsigned char      *data;
+
+  if (x + w <= img->w && y + h <= img->h) {
+    img->d_w = w;
+    img->d_h = h;
+
+    /* Calculate plane pointers */
+    if (!(img->fmt & VPX_IMG_FMT_PLANAR)) {
+      img->planes[VPX_PLANE_PACKED] =
+        img->img_data + x * img->bps / 8 + y * img->stride[VPX_PLANE_PACKED];
+    } else {
+      const int bytes_per_sample =
+          (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
+      data = img->img_data;
+
+      if (img->fmt & VPX_IMG_FMT_HAS_ALPHA) {
+        img->planes[VPX_PLANE_ALPHA] =
+            data + x * bytes_per_sample + y * img->stride[VPX_PLANE_ALPHA];
+        data += img->h * img->stride[VPX_PLANE_ALPHA];
+      }
+
+      img->planes[VPX_PLANE_Y] = data + x * bytes_per_sample +
+          y * img->stride[VPX_PLANE_Y];
+      data += img->h * img->stride[VPX_PLANE_Y];
+
+      if (!(img->fmt & VPX_IMG_FMT_UV_FLIP)) {
+        img->planes[VPX_PLANE_U] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+        data += (img->h >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+        img->planes[VPX_PLANE_V] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+      } else {
+        img->planes[VPX_PLANE_V] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+        data += (img->h >> img->y_chroma_shift) * img->stride[VPX_PLANE_V];
+        img->planes[VPX_PLANE_U] =
+            data + (x >> img->x_chroma_shift) * bytes_per_sample +
+            (y >> img->y_chroma_shift) * img->stride[VPX_PLANE_U];
+      }
+    }
+    return 0;
+  }
+  return -1;
+}
+
+void vpx_img_flip(vpx_image_t *img) {
+  /* Note: In the calculation pointer adjustment calculation, we want the
+   * rhs to be promoted to a signed type. Section 6.3.1.8 of the ISO C99
+   * standard indicates that if the adjustment parameter is unsigned, the
+   * stride parameter will be promoted to unsigned, causing errors when
+   * the lhs is a larger type than the rhs.
+   */
+  img->planes[VPX_PLANE_Y] += (signed)(img->d_h - 1) * img->stride[VPX_PLANE_Y];
+  img->stride[VPX_PLANE_Y] = -img->stride[VPX_PLANE_Y];
+
+  img->planes[VPX_PLANE_U] += (signed)((img->d_h >> img->y_chroma_shift) - 1)
+                              * img->stride[VPX_PLANE_U];
+  img->stride[VPX_PLANE_U] = -img->stride[VPX_PLANE_U];
+
+  img->planes[VPX_PLANE_V] += (signed)((img->d_h >> img->y_chroma_shift) - 1)
+                              * img->stride[VPX_PLANE_V];
+  img->stride[VPX_PLANE_V] = -img->stride[VPX_PLANE_V];
+
+  img->planes[VPX_PLANE_ALPHA] += (signed)(img->d_h - 1) * img->stride[VPX_PLANE_ALPHA];
+  img->stride[VPX_PLANE_ALPHA] = -img->stride[VPX_PLANE_ALPHA];
+}
+
+void vpx_img_free(vpx_image_t *img) {
+  if (img) {
+    if (img->img_data && img->img_data_owner)
+      vpx_free(img->img_data);
+
+    if (img->self_allocd)
+      free(img);
+  }
+}
diff --git a/media/libvpx/vpx/src/vpx_psnr.c b/media/libvpx/vpx/src/vpx_psnr.c
new file mode 100644
index 000000000..05843acb6
--- /dev/null
+++ b/media/libvpx/vpx/src/vpx_psnr.c
@@ -0,0 +1,24 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <math.h>
+
+#include "vpx/internal/vpx_psnr.h"
+
+#define MAX_PSNR 100.0
+
+double vpx_sse_to_psnr(double samples, double peak, double sse) {
+  if (sse > 0.0) {
+    const double psnr = 10.0 * log10(samples * peak * peak / sse);
+    return psnr > MAX_PSNR ? MAX_PSNR : psnr;
+  } else {
+    return MAX_PSNR;
+  }
+}
diff --git a/media/libvpx/vpx/svc_context.h b/media/libvpx/vpx/svc_context.h
new file mode 100644
index 000000000..a09651cc9
--- /dev/null
+++ b/media/libvpx/vpx/svc_context.h
@@ -0,0 +1,122 @@
+/*
+ *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/**
+ * SvcContext - input parameters and state to encode a multi-layered
+ * spatial SVC frame
+ */
+
+#ifndef VPX_SVC_CONTEXT_H_
+#define VPX_SVC_CONTEXT_H_
+
+#include "./vp8cx.h"
+#include "./vpx_encoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum SVC_LOG_LEVEL {
+  SVC_LOG_ERROR,
+  SVC_LOG_INFO,
+  SVC_LOG_DEBUG
+} SVC_LOG_LEVEL;
+
+typedef struct {
+  // public interface to svc_command options
+  int spatial_layers;               // number of spatial layers
+  int temporal_layers;               // number of temporal layers
+  int temporal_layering_mode;
+  SVC_LOG_LEVEL log_level;  // amount of information to display
+  int log_print;  // when set, printf log messages instead of returning the
+                  // message with svc_get_message
+  int output_rc_stat;  // for outputting rc stats
+  int speed;  // speed setting for codec
+  int threads;
+  // private storage for vpx_svc_encode
+  void *internal;
+} SvcContext;
+
+#define OPTION_BUFFER_SIZE 1024
+#define COMPONENTS 4  // psnr & sse statistics maintained for total, y, u, v
+
+typedef struct SvcInternal {
+  char options[OPTION_BUFFER_SIZE];        // set by vpx_svc_set_options
+
+  // values extracted from option, quantizers
+  vpx_svc_extra_cfg_t svc_params;
+  int enable_auto_alt_ref[VPX_SS_MAX_LAYERS];
+  int bitrates[VPX_SS_MAX_LAYERS];
+
+  // accumulated statistics
+  double psnr_sum[VPX_SS_MAX_LAYERS][COMPONENTS];   // total/Y/U/V
+  uint64_t sse_sum[VPX_SS_MAX_LAYERS][COMPONENTS];
+  uint32_t bytes_sum[VPX_SS_MAX_LAYERS];
+
+  // codec encoding values
+  int width;    // width of highest layer
+  int height;   // height of highest layer
+  int kf_dist;  // distance between keyframes
+
+  // state variables
+  int psnr_pkt_received;
+  int layer;
+  int use_multiple_frame_contexts;
+
+  char message_buffer[2048];
+  vpx_codec_ctx_t *codec_ctx;
+} SvcInternal_t;
+
+/**
+ * Set SVC options
+ * options are supplied as a single string separated by spaces
+ * Format: encoding-mode=<i|ip|alt-ip|gf>
+ *         layers=<layer_count>
+ *         scaling-factors=<n1>/<d1>,<n2>/<d2>,...
+ *         quantizers=<q1>,<q2>,...
+ */
+vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, const char *options);
+
+/**
+ * initialize SVC encoding
+ */
+vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx,
+                             vpx_codec_ctx_t *codec_ctx,
+                             vpx_codec_iface_t *iface,
+                             vpx_codec_enc_cfg_t *cfg);
+/**
+ * encode a frame of video with multiple layers
+ */
+vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx,
+                               vpx_codec_ctx_t *codec_ctx,
+                               struct vpx_image *rawimg,
+                               vpx_codec_pts_t pts,
+                               int64_t duration, int deadline);
+
+/**
+ * finished with svc encoding, release allocated resources
+ */
+void vpx_svc_release(SvcContext *svc_ctx);
+
+/**
+ * dump accumulated statistics and reset accumulated values
+ */
+const char *vpx_svc_dump_statistics(SvcContext *svc_ctx);
+
+/**
+ *  get status message from previous encode
+ */
+const char *vpx_svc_get_message(const SvcContext *svc_ctx);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_SVC_CONTEXT_H_
diff --git a/media/libvpx/vpx/vp8.h b/media/libvpx/vpx/vp8.h
new file mode 100644
index 000000000..2a31af6d1
--- /dev/null
+++ b/media/libvpx/vpx/vp8.h
@@ -0,0 +1,138 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/*!\defgroup vp8 VP8
+ * \ingroup codecs
+ * VP8 is vpx's newest video compression algorithm that uses motion
+ * compensated prediction, Discrete Cosine Transform (DCT) coding of the
+ * prediction error signal and context dependent entropy coding techniques
+ * based on arithmetic principles. It features:
+ *  - YUV 4:2:0 image format
+ *  - Macro-block based coding (16x16 luma plus two 8x8 chroma)
+ *  - 1/4 (1/8) pixel accuracy motion compensated prediction
+ *  - 4x4 DCT transform
+ *  - 128 level linear quantizer
+ *  - In loop deblocking filter
+ *  - Context-based entropy coding
+ *
+ * @{
+ */
+/*!\file
+ * \brief Provides controls common to both the VP8 encoder and decoder.
+ */
+#ifndef VPX_VP8_H_
+#define VPX_VP8_H_
+
+#include "./vpx_codec.h"
+#include "./vpx_image.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!\brief Control functions
+ *
+ * The set of macros define the control functions of VP8 interface
+ */
+enum vp8_com_control_id {
+  VP8_SET_REFERENCE           = 1,    /**< pass in an external frame into decoder to be used as reference frame */
+  VP8_COPY_REFERENCE          = 2,    /**< get a copy of reference frame from the decoder */
+  VP8_SET_POSTPROC            = 3,    /**< set the decoder's post processing settings  */
+  VP8_SET_DBG_COLOR_REF_FRAME = 4,    /**< set the reference frames to color for each macroblock */
+  VP8_SET_DBG_COLOR_MB_MODES  = 5,    /**< set which macro block modes to color */
+  VP8_SET_DBG_COLOR_B_MODES   = 6,    /**< set which blocks modes to color */
+  VP8_SET_DBG_DISPLAY_MV      = 7,    /**< set which motion vector modes to draw */
+
+  /* TODO(jkoleszar): The encoder incorrectly reuses some of these values (5+)
+   * for its control ids. These should be migrated to something like the
+   * VP8_DECODER_CTRL_ID_START range next time we're ready to break the ABI.
+   */
+  VP9_GET_REFERENCE           = 128,  /**< get a pointer to a reference frame */
+  VP8_COMMON_CTRL_ID_MAX,
+  VP8_DECODER_CTRL_ID_START   = 256
+};
+
+/*!\brief post process flags
+ *
+ * The set of macros define VP8 decoder post processing flags
+ */
+enum vp8_postproc_level {
+  VP8_NOFILTERING             = 0,
+  VP8_DEBLOCK                 = 1 << 0,
+  VP8_DEMACROBLOCK            = 1 << 1,
+  VP8_ADDNOISE                = 1 << 2,
+  VP8_DEBUG_TXT_FRAME_INFO    = 1 << 3, /**< print frame information */
+  VP8_DEBUG_TXT_MBLK_MODES    = 1 << 4, /**< print macro block modes over each macro block */
+  VP8_DEBUG_TXT_DC_DIFF       = 1 << 5, /**< print dc diff for each macro block */
+  VP8_DEBUG_TXT_RATE_INFO     = 1 << 6, /**< print video rate info (encoder only) */
+  VP8_MFQE                    = 1 << 10
+};
+
+/*!\brief post process flags
+ *
+ * This define a structure that describe the post processing settings. For
+ * the best objective measure (using the PSNR metric) set post_proc_flag
+ * to VP8_DEBLOCK and deblocking_level to 1.
+ */
+
+typedef struct vp8_postproc_cfg {
+  int post_proc_flag;         /**< the types of post processing to be done, should be combination of "vp8_postproc_level" */
+  int deblocking_level;       /**< the strength of deblocking, valid range [0, 16] */
+  int noise_level;            /**< the strength of additive noise, valid range [0, 16] */
+} vp8_postproc_cfg_t;
+
+/*!\brief reference frame type
+ *
+ * The set of macros define the type of VP8 reference frames
+ */
+typedef enum vpx_ref_frame_type {
+  VP8_LAST_FRAME = 1,
+  VP8_GOLD_FRAME = 2,
+  VP8_ALTR_FRAME = 4
+} vpx_ref_frame_type_t;
+
+/*!\brief reference frame data struct
+ *
+ * Define the data struct to access vp8 reference frames.
+ */
+typedef struct vpx_ref_frame {
+  vpx_ref_frame_type_t  frame_type;   /**< which reference frame */
+  vpx_image_t           img;          /**< reference frame data in image format */
+} vpx_ref_frame_t;
+
+/*!\brief VP9 specific reference frame data struct
+ *
+ * Define the data struct to access vp9 reference frames.
+ */
+typedef struct vp9_ref_frame {
+  int idx; /**< frame index to get (input) */
+  vpx_image_t  img; /**< img structure to populate (output) */
+} vp9_ref_frame_t;
+
+/*!\brief vp8 decoder control function parameter type
+ *
+ * defines the data type for each of VP8 decoder control function requires
+ */
+VPX_CTRL_USE_TYPE(VP8_SET_REFERENCE,           vpx_ref_frame_t *)
+VPX_CTRL_USE_TYPE(VP8_COPY_REFERENCE,          vpx_ref_frame_t *)
+VPX_CTRL_USE_TYPE(VP8_SET_POSTPROC,            vp8_postproc_cfg_t *)
+VPX_CTRL_USE_TYPE(VP8_SET_DBG_COLOR_REF_FRAME, int)
+VPX_CTRL_USE_TYPE(VP8_SET_DBG_COLOR_MB_MODES,  int)
+VPX_CTRL_USE_TYPE(VP8_SET_DBG_COLOR_B_MODES,   int)
+VPX_CTRL_USE_TYPE(VP8_SET_DBG_DISPLAY_MV,      int)
+VPX_CTRL_USE_TYPE(VP9_GET_REFERENCE,           vp9_ref_frame_t *)
+
+/*! @} - end defgroup vp8 */
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP8_H_
diff --git a/media/libvpx/vpx/vp8cx.h b/media/libvpx/vpx/vp8cx.h
new file mode 100644
index 000000000..19bc4bdcc
--- /dev/null
+++ b/media/libvpx/vpx/vp8cx.h
@@ -0,0 +1,725 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VPX_VP8CX_H_
+#define VPX_VP8CX_H_
+
+/*!\defgroup vp8_encoder WebM VP8/VP9 Encoder
+ * \ingroup vp8
+ *
+ * @{
+ */
+#include "./vp8.h"
+#include "./vpx_encoder.h"
+
+/*!\file
+ * \brief Provides definitions for using VP8 or VP9 encoder algorithm within the
+ *        vpx Codec Interface.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!\name Algorithm interface for VP8
+ *
+ * This interface provides the capability to encode raw VP8 streams.
+ * @{
+ */
+extern vpx_codec_iface_t  vpx_codec_vp8_cx_algo;
+extern vpx_codec_iface_t *vpx_codec_vp8_cx(void);
+/*!@} - end algorithm interface member group*/
+
+/*!\name Algorithm interface for VP9
+ *
+ * This interface provides the capability to encode raw VP9 streams.
+ * @{
+ */
+extern vpx_codec_iface_t  vpx_codec_vp9_cx_algo;
+extern vpx_codec_iface_t *vpx_codec_vp9_cx(void);
+/*!@} - end algorithm interface member group*/
+
+
+/*
+ * Algorithm Flags
+ */
+
+/*!\brief Don't reference the last frame
+ *
+ * When this flag is set, the encoder will not use the last frame as a
+ * predictor. When not set, the encoder will choose whether to use the
+ * last frame or not automatically.
+ */
+#define VP8_EFLAG_NO_REF_LAST      (1<<16)
+
+
+/*!\brief Don't reference the golden frame
+ *
+ * When this flag is set, the encoder will not use the golden frame as a
+ * predictor. When not set, the encoder will choose whether to use the
+ * golden frame or not automatically.
+ */
+#define VP8_EFLAG_NO_REF_GF        (1<<17)
+
+
+/*!\brief Don't reference the alternate reference frame
+ *
+ * When this flag is set, the encoder will not use the alt ref frame as a
+ * predictor. When not set, the encoder will choose whether to use the
+ * alt ref frame or not automatically.
+ */
+#define VP8_EFLAG_NO_REF_ARF       (1<<21)
+
+
+/*!\brief Don't update the last frame
+ *
+ * When this flag is set, the encoder will not update the last frame with
+ * the contents of the current frame.
+ */
+#define VP8_EFLAG_NO_UPD_LAST      (1<<18)
+
+
+/*!\brief Don't update the golden frame
+ *
+ * When this flag is set, the encoder will not update the golden frame with
+ * the contents of the current frame.
+ */
+#define VP8_EFLAG_NO_UPD_GF        (1<<22)
+
+
+/*!\brief Don't update the alternate reference frame
+ *
+ * When this flag is set, the encoder will not update the alt ref frame with
+ * the contents of the current frame.
+ */
+#define VP8_EFLAG_NO_UPD_ARF       (1<<23)
+
+
+/*!\brief Force golden frame update
+ *
+ * When this flag is set, the encoder copy the contents of the current frame
+ * to the golden frame buffer.
+ */
+#define VP8_EFLAG_FORCE_GF         (1<<19)
+
+
+/*!\brief Force alternate reference frame update
+ *
+ * When this flag is set, the encoder copy the contents of the current frame
+ * to the alternate reference frame buffer.
+ */
+#define VP8_EFLAG_FORCE_ARF        (1<<24)
+
+
+/*!\brief Disable entropy update
+ *
+ * When this flag is set, the encoder will not update its internal entropy
+ * model based on the entropy of this frame.
+ */
+#define VP8_EFLAG_NO_UPD_ENTROPY   (1<<20)
+
+
+/*!\brief VPx encoder control functions
+ *
+ * This set of macros define the control functions available for VPx
+ * encoder interface.
+ *
+ * \sa #vpx_codec_control
+ */
+enum vp8e_enc_control_id {
+  /*!\brief Codec control function to set mode of entropy update in encoder.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_UPD_ENTROPY           = 5,
+
+  /*!\brief Codec control function to set reference update mode in encoder.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_UPD_REFERENCE,
+
+  /*!\brief Codec control function to set which reference frame encoder can use.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_USE_REFERENCE,
+
+  /*!\brief Codec control function to pass an ROI map to encoder.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_ROI_MAP,
+
+  /*!\brief Codec control function to pass an Active map to encoder.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_ACTIVEMAP,
+
+  /*!\brief Codec control function to set encoder scaling mode.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_SCALEMODE         = 11,
+
+  /*!\brief Codec control function to set encoder internal speed settings.
+   *
+   * Changes in this value influences, among others, the encoder's selection
+   * of motion estimation methods. Values greater than 0 will increase encoder
+   * speed at the expense of quality.
+   *
+   * \note Valid range for VP8: -16..16
+   * \note Valid range for VP9: -8..8
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_CPUUSED           = 13,
+
+  /*!\brief Codec control function to enable automatic set and use alf frames.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_ENABLEAUTOALTREF,
+
+  /*!\brief control function to set noise sensitivity
+   *
+   * 0: off, 1: OnYOnly, 2: OnYUV,
+   * 3: OnYUVAggressive, 4: Adaptive
+   *
+   * Supported in codecs: VP8
+   */
+  VP8E_SET_NOISE_SENSITIVITY,
+
+  /*!\brief Codec control function to set sharpness.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_SHARPNESS,
+
+  /*!\brief Codec control function to set the threshold for MBs treated static.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_STATIC_THRESHOLD,
+
+  /*!\brief Codec control function to set the number of token partitions.
+   *
+   * Supported in codecs: VP8
+   */
+  VP8E_SET_TOKEN_PARTITIONS,
+
+  /*!\brief Codec control function to get last quantizer chosen by the encoder.
+   *
+   * Return value uses internal quantizer scale defined by the codec.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_GET_LAST_QUANTIZER,
+
+  /*!\brief Codec control function to get last quantizer chosen by the encoder.
+   *
+   * Return value uses the 0..63 scale as used by the rc_*_quantizer config
+   * parameters.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_GET_LAST_QUANTIZER_64,
+
+  /*!\brief Codec control function to set the max no of frames to create arf.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_ARNR_MAXFRAMES,
+
+  /*!\brief Codec control function to set the filter strength for the arf.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_ARNR_STRENGTH,
+
+  /*!\deprecated control function to set the filter type to use for the arf. */
+  VP8E_SET_ARNR_TYPE,
+
+  /*!\brief Codec control function to set visual tuning.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_TUNING,
+
+  /*!\brief Codec control function to set constrained quality level.
+   *
+   * \attention For this value to be used vpx_codec_enc_cfg_t::g_usage must be
+   *            set to #VPX_CQ.
+   * \note Valid range: 0..63
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_CQ_LEVEL,
+
+  /*!\brief Codec control function to set Max data rate for Intra frames.
+   *
+   * This value controls additional clamping on the maximum size of a
+   * keyframe. It is expressed as a percentage of the average
+   * per-frame bitrate, with the special (and default) value 0 meaning
+   * unlimited, or no additional clamping beyond the codec's built-in
+   * algorithm.
+   *
+   * For example, to allocate no more than 4.5 frames worth of bitrate
+   * to a keyframe, set this to 450.
+   *
+   * Supported in codecs: VP8, VP9
+   */
+  VP8E_SET_MAX_INTRA_BITRATE_PCT,
+
+  /*!\brief Codec control function to set reference and update frame flags.
+   *
+   *  Supported in codecs: VP8
+   */
+  VP8E_SET_FRAME_FLAGS,
+
+  /*!\brief Codec control function to set max data rate for Inter frames.
+   *
+   * This value controls additional clamping on the maximum size of an
+   * inter frame. It is expressed as a percentage of the average
+   * per-frame bitrate, with the special (and default) value 0 meaning
+   * unlimited, or no additional clamping beyond the codec's built-in
+   * algorithm.
+   *
+   * For example, to allow no more than 4.5 frames worth of bitrate
+   * to an inter frame, set this to 450.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_MAX_INTER_BITRATE_PCT,
+
+  /*!\brief Boost percentage for Golden Frame in CBR mode.
+   *
+   * This value controls the amount of boost given to Golden Frame in
+   * CBR mode. It is expressed as a percentage of the average
+   * per-frame bitrate, with the special (and default) value 0 meaning
+   * the feature is off, i.e., no golden frame boost in CBR mode and
+   * average bitrate target is used.
+   *
+   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
+   * than average frame, set this to 100.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_GF_CBR_BOOST_PCT,
+
+  /*!\brief Codec control function to set the temporal layer id.
+   *
+   * For temporal scalability: this control allows the application to set the
+   * layer id for each frame to be encoded. Note that this control must be set
+   * for every frame prior to encoding. The usage of this control function
+   * supersedes the internal temporal pattern counter, which is now deprecated.
+   *
+   * Supported in codecs: VP8
+   */
+  VP8E_SET_TEMPORAL_LAYER_ID,
+
+  /*!\brief Codec control function to set encoder screen content mode.
+   *
+   * 0: off, 1: On, 2: On with more aggressive rate control.
+   *
+   * Supported in codecs: VP8
+   */
+  VP8E_SET_SCREEN_CONTENT_MODE,
+
+  /*!\brief Codec control function to set lossless encoding mode.
+   *
+   * VP9 can operate in lossless encoding mode, in which the bitstream
+   * produced will be able to decode and reconstruct a perfect copy of
+   * input source. This control function provides a mean to switch encoder
+   * into lossless coding mode(1) or normal coding mode(0) that may be lossy.
+   *                          0 = lossy coding mode
+   *                          1 = lossless coding mode
+   *
+   *  By default, encoder operates in normal coding mode (maybe lossy).
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_LOSSLESS,
+
+  /*!\brief Codec control function to set number of tile columns.
+   *
+   * In encoding and decoding, VP9 allows an input image frame be partitioned
+   * into separated vertical tile columns, which can be encoded or decoded
+   * independently. This enables easy implementation of parallel encoding and
+   * decoding. This control requests the encoder to use column tiles in
+   * encoding an input frame, with number of tile columns (in Log2 unit) as
+   * the parameter:
+   *             0 = 1 tile column
+   *             1 = 2 tile columns
+   *             2 = 4 tile columns
+   *             .....
+   *             n = 2**n tile columns
+   * The requested tile columns will be capped by encoder based on image size
+   * limitation (The minimum width of a tile column is 256 pixel, the maximum
+   * is 4096).
+   *
+   * By default, the value is 0, i.e. one single column tile for entire image.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_TILE_COLUMNS,
+
+  /*!\brief Codec control function to set number of tile rows.
+   *
+   * In encoding and decoding, VP9 allows an input image frame be partitioned
+   * into separated horizontal tile rows. Tile rows are encoded or decoded
+   * sequentially. Even though encoding/decoding of later tile rows depends on
+   * earlier ones, this allows the encoder to output data packets for tile rows
+   * prior to completely processing all tile rows in a frame, thereby reducing
+   * the latency in processing between input and output. The parameter
+   * for this control describes the number of tile rows, which has a valid
+   * range [0, 2]:
+   *            0 = 1 tile row
+   *            1 = 2 tile rows
+   *            2 = 4 tile rows
+   *
+   * By default, the value is 0, i.e. one single row tile for entire image.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_TILE_ROWS,
+
+  /*!\brief Codec control function to enable frame parallel decoding feature.
+   *
+   * VP9 has a bitstream feature to reduce decoding dependency between frames
+   * by turning off backward update of probability context used in encoding
+   * and decoding. This allows staged parallel processing of more than one
+   * video frames in the decoder. This control function provides a mean to
+   * turn this feature on or off for bitstreams produced by encoder.
+   *
+   * By default, this feature is off.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_FRAME_PARALLEL_DECODING,
+
+  /*!\brief Codec control function to set adaptive quantization mode.
+   *
+   * VP9 has a segment based feature that allows encoder to adaptively change
+   * quantization parameter for each segment within a frame to improve the
+   * subjective quality. This control makes encoder operate in one of the
+   * several AQ_modes supported.
+   *
+   * By default, encoder operates with AQ_Mode 0(adaptive quantization off).
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_AQ_MODE,
+
+  /*!\brief Codec control function to enable/disable periodic Q boost.
+   *
+   * One VP9 encoder speed feature is to enable quality boost by lowering
+   * frame level Q periodically. This control function provides a mean to
+   * turn on/off this feature.
+   *               0 = off
+   *               1 = on
+   *
+   * By default, the encoder is allowed to use this feature for appropriate
+   * encoding modes.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_FRAME_PERIODIC_BOOST,
+
+  /*!\brief Codec control function to set noise sensitivity.
+   *
+   *  0: off, 1: On(YOnly)
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_NOISE_SENSITIVITY,
+
+  /*!\brief Codec control function to turn on/off SVC in encoder.
+   * \note Return value is VPX_CODEC_INVALID_PARAM if the encoder does not
+   *       support SVC in its current encoding mode
+   *  0: off, 1: on
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_SVC,
+
+  /*!\brief Codec control function to set parameters for SVC.
+   * \note Parameters contain min_q, max_q, scaling factor for each of the
+   *       SVC layers.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_SVC_PARAMETERS,
+
+  /*!\brief Codec control function to set svc layer for spatial and temporal.
+   * \note Valid ranges: 0..#vpx_codec_enc_cfg::ss_number_layers for spatial
+   *                     layer and 0..#vpx_codec_enc_cfg::ts_number_layers for
+   *                     temporal layer.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_SVC_LAYER_ID,
+
+  /*!\brief Codec control function to set content type.
+   * \note Valid parameter range:
+   *              VP9E_CONTENT_DEFAULT = Regular video content (Default)
+   *              VP9E_CONTENT_SCREEN  = Screen capture content
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_TUNE_CONTENT,
+
+  /*!\brief Codec control function to get svc layer ID.
+   * \note The layer ID returned is for the data packet from the registered
+   *       callback function.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_GET_SVC_LAYER_ID,
+
+  /*!\brief Codec control function to register callback to get per layer packet.
+   * \note Parameter for this control function is a structure with a callback
+   *       function and a pointer to private data used by the callback.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_REGISTER_CX_CALLBACK,
+
+  /*!\brief Codec control function to set color space info.
+   * \note Valid ranges: 0..7, default is "UNKNOWN".
+   *                     0 = UNKNOWN,
+   *                     1 = BT_601
+   *                     2 = BT_709
+   *                     3 = SMPTE_170
+   *                     4 = SMPTE_240
+   *                     5 = BT_2020
+   *                     6 = RESERVED
+   *                     7 = SRGB
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_COLOR_SPACE,
+
+  /*!\brief Codec control function to set temporal layering mode.
+   * \note Valid ranges: 0..3, default is "0" (VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING).
+   *                     0 = VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING
+   *                     1 = VP9E_TEMPORAL_LAYERING_MODE_BYPASS
+   *                     2 = VP9E_TEMPORAL_LAYERING_MODE_0101
+   *                     3 = VP9E_TEMPORAL_LAYERING_MODE_0212
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_TEMPORAL_LAYERING_MODE,
+
+  /*!\brief Codec control function to get an Active map back from the encoder.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_GET_ACTIVEMAP,
+};
+
+/*!\brief vpx 1-D scaling mode
+ *
+ * This set of constants define 1-D vpx scaling modes
+ */
+typedef enum vpx_scaling_mode_1d {
+  VP8E_NORMAL      = 0,
+  VP8E_FOURFIVE    = 1,
+  VP8E_THREEFIVE   = 2,
+  VP8E_ONETWO      = 3
+} VPX_SCALING_MODE;
+
+/*!\brief Temporal layering mode enum for VP9 SVC.
+ *
+ * This set of macros define the different temporal layering modes.
+ * Supported codecs: VP9 (in SVC mode)
+ *
+ */
+typedef enum vp9e_temporal_layering_mode {
+  /*!\brief No temporal layering.
+   * Used when only spatial layering is used.
+   */
+  VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING   = 0,
+
+  /*!\brief Bypass mode.
+   * Used when application needs to control temporal layering.
+   * This will only work when the number of spatial layers equals 1.
+   */
+  VP9E_TEMPORAL_LAYERING_MODE_BYPASS       = 1,
+
+  /*!\brief 0-1-0-1... temporal layering scheme with two temporal layers.
+   */
+  VP9E_TEMPORAL_LAYERING_MODE_0101         = 2,
+
+  /*!\brief 0-2-1-2... temporal layering scheme with three temporal layers.
+   */
+  VP9E_TEMPORAL_LAYERING_MODE_0212         = 3
+} VP9E_TEMPORAL_LAYERING_MODE;
+
+/*!\brief  vpx region of interest map
+ *
+ * These defines the data structures for the region of interest map
+ *
+ */
+
+typedef struct vpx_roi_map {
+  /*! An id between 0 and 3 for each 16x16 region within a frame. */
+  unsigned char *roi_map;
+  unsigned int rows;       /**< Number of rows. */
+  unsigned int cols;       /**< Number of columns. */
+  // TODO(paulwilkins): broken for VP9 which has 8 segments
+  // q and loop filter deltas for each segment
+  // (see MAX_MB_SEGMENTS)
+  int delta_q[4];          /**< Quantizer deltas. */
+  int delta_lf[4];         /**< Loop filter deltas. */
+  /*! Static breakout threshold for each segment. */
+  unsigned int static_threshold[4];
+} vpx_roi_map_t;
+
+/*!\brief  vpx active region map
+ *
+ * These defines the data structures for active region map
+ *
+ */
+
+
+typedef struct vpx_active_map {
+  unsigned char  *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
+  unsigned int    rows;       /**< number of rows */
+  unsigned int    cols;       /**< number of cols */
+} vpx_active_map_t;
+
+/*!\brief  vpx image scaling mode
+ *
+ * This defines the data structure for image scaling mode
+ *
+ */
+typedef struct vpx_scaling_mode {
+  VPX_SCALING_MODE    h_scaling_mode;  /**< horizontal scaling mode */
+  VPX_SCALING_MODE    v_scaling_mode;  /**< vertical scaling mode   */
+} vpx_scaling_mode_t;
+
+/*!\brief VP8 token partition mode
+ *
+ * This defines VP8 partitioning mode for compressed data, i.e., the number of
+ * sub-streams in the bitstream. Used for parallelized decoding.
+ *
+ */
+
+typedef enum {
+  VP8_ONE_TOKENPARTITION   = 0,
+  VP8_TWO_TOKENPARTITION   = 1,
+  VP8_FOUR_TOKENPARTITION  = 2,
+  VP8_EIGHT_TOKENPARTITION = 3
+} vp8e_token_partitions;
+
+/*!brief VP9 encoder content type */
+typedef enum {
+  VP9E_CONTENT_DEFAULT,
+  VP9E_CONTENT_SCREEN,
+  VP9E_CONTENT_INVALID
+} vp9e_tune_content;
+
+/*!\brief VP8 model tuning parameters
+ *
+ * Changes the encoder to tune for certain types of input material.
+ *
+ */
+typedef enum {
+  VP8_TUNE_PSNR,
+  VP8_TUNE_SSIM
+} vp8e_tuning;
+
+/*!\brief  vp9 svc layer parameters
+ *
+ * This defines the spatial and temporal layer id numbers for svc encoding.
+ * This is used with the #VP9E_SET_SVC_LAYER_ID control to set the spatial and
+ * temporal layer id for the current frame.
+ *
+ */
+typedef struct vpx_svc_layer_id {
+  int spatial_layer_id;       /**< Spatial layer id number. */
+  int temporal_layer_id;      /**< Temporal layer id number. */
+} vpx_svc_layer_id_t;
+
+/*!\brief VP8 encoder control function parameter type
+ *
+ * Defines the data types that VP8E control functions take. Note that
+ * additional common controls are defined in vp8.h
+ *
+ */
+
+
+/* These controls have been deprecated in favor of the flags parameter to
+ * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
+ */
+VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY,            int)
+VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE,          int)
+VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE,          int)
+
+VPX_CTRL_USE_TYPE(VP8E_SET_FRAME_FLAGS,        int)
+VPX_CTRL_USE_TYPE(VP8E_SET_TEMPORAL_LAYER_ID,  int)
+VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP,            vpx_roi_map_t *)
+VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP,          vpx_active_map_t *)
+VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE,          vpx_scaling_mode_t *)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_SVC,                int)
+VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS,     void *)
+VPX_CTRL_USE_TYPE(VP9E_REGISTER_CX_CALLBACK,   void *)
+VPX_CTRL_USE_TYPE(VP9E_SET_SVC_LAYER_ID,       vpx_svc_layer_id_t *)
+
+VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED,            int)
+VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF,   unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY,  unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS,          unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD,   unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS,   int) /* vp8e_token_partitions */
+
+VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES,     unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH,     unsigned int)
+VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_SET_ARNR_TYPE,     unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_TUNING,             int) /* vp8e_tuning */
+VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL,      unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS,  int)
+VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS,  int)
+
+VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER,     int *)
+VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64,  int *)
+VPX_CTRL_USE_TYPE(VP9E_GET_SVC_LAYER_ID,  vpx_svc_layer_id_t *)
+
+VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
+VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTER_BITRATE_PCT, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP8E_SET_SCREEN_CONTENT_MODE, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_GF_CBR_BOOST_PCT, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_AQ_MODE, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PERIODIC_BOOST, unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_NOISE_SENSITIVITY,  unsigned int)
+
+VPX_CTRL_USE_TYPE(VP9E_SET_TUNE_CONTENT, int) /* vp9e_tune_content */
+
+VPX_CTRL_USE_TYPE(VP9E_SET_COLOR_SPACE, int)
+
+VPX_CTRL_USE_TYPE(VP9E_GET_ACTIVEMAP, vpx_active_map_t *)
+/*! @} - end defgroup vp8_encoder */
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP8CX_H_
diff --git a/media/libvpx/vpx/vp8dx.h b/media/libvpx/vpx/vp8dx.h
new file mode 100644
index 000000000..bc9cb1a62
--- /dev/null
+++ b/media/libvpx/vpx/vp8dx.h
@@ -0,0 +1,166 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\defgroup vp8_decoder WebM VP8/VP9 Decoder
+ * \ingroup vp8
+ *
+ * @{
+ */
+/*!\file
+ * \brief Provides definitions for using VP8 or VP9 within the vpx Decoder
+ *        interface.
+ */
+#ifndef VPX_VP8DX_H_
+#define VPX_VP8DX_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Include controls common to both the encoder and decoder */
+#include "./vp8.h"
+
+/*!\name Algorithm interface for VP8
+ *
+ * This interface provides the capability to decode VP8 streams.
+ * @{
+ */
+extern vpx_codec_iface_t  vpx_codec_vp8_dx_algo;
+extern vpx_codec_iface_t *vpx_codec_vp8_dx(void);
+/*!@} - end algorithm interface member group*/
+
+/*!\name Algorithm interface for VP9
+ *
+ * This interface provides the capability to decode VP9 streams.
+ * @{
+ */
+extern vpx_codec_iface_t  vpx_codec_vp9_dx_algo;
+extern vpx_codec_iface_t *vpx_codec_vp9_dx(void);
+/*!@} - end algorithm interface member group*/
+
+
+/*!\enum vp8_dec_control_id
+ * \brief VP8 decoder control functions
+ *
+ * This set of macros define the control functions available for the VP8
+ * decoder interface.
+ *
+ * \sa #vpx_codec_control
+ */
+enum vp8_dec_control_id {
+  /** control function to get info on which reference frames were updated
+   *  by the last decode
+   */
+  VP8D_GET_LAST_REF_UPDATES = VP8_DECODER_CTRL_ID_START,
+
+  /** check if the indicated frame is corrupted */
+  VP8D_GET_FRAME_CORRUPTED,
+
+  /** control function to get info on which reference frames were used
+   *  by the last decode
+   */
+  VP8D_GET_LAST_REF_USED,
+
+  /** decryption function to decrypt encoded buffer data immediately
+   * before decoding. Takes a vpx_decrypt_init, which contains
+   * a callback function and opaque context pointer.
+   */
+  VPXD_SET_DECRYPTOR,
+  VP8D_SET_DECRYPTOR = VPXD_SET_DECRYPTOR,
+
+  /** control function to get the dimensions that the current frame is decoded
+   * at. This may be different to the intended display size for the frame as
+   * specified in the wrapper or frame header (see VP9D_GET_DISPLAY_SIZE). */
+  VP9D_GET_FRAME_SIZE,
+
+  /** control function to get the current frame's intended display dimensions
+   * (as specified in the wrapper or frame header). This may be different to
+   * the decoded dimensions of this frame (see VP9D_GET_FRAME_SIZE). */
+  VP9D_GET_DISPLAY_SIZE,
+
+  /** control function to get the bit depth of the stream. */
+  VP9D_GET_BIT_DEPTH,
+
+  /** control function to set the byte alignment of the planes in the reference
+   * buffers. Valid values are power of 2, from 32 to 1024. A value of 0 sets
+   * legacy alignment. I.e. Y plane is aligned to 32 bytes, U plane directly
+   * follows Y plane, and V plane directly follows U plane. Default value is 0.
+   */
+  VP9_SET_BYTE_ALIGNMENT,
+
+  /** control function to invert the decoding order to from right to left. The
+   * function is used in a test to confirm the decoding independence of tile
+   * columns. The function may be used in application where this order
+   * of decoding is desired.
+   *
+   * TODO(yaowu): Rework the unit test that uses this control, and in a future
+   *              release, this test-only control shall be removed.
+   */
+  VP9_INVERT_TILE_DECODE_ORDER,
+
+  /** control function to set the skip loop filter flag. Valid values are
+   * integers. The decoder will skip the loop filter when its value is set to
+   * nonzero. If the loop filter is skipped the decoder may accumulate decode
+   * artifacts. The default value is 0.
+   */
+  VP9_SET_SKIP_LOOP_FILTER,
+
+  VP8_DECODER_CTRL_ID_MAX
+};
+
+/** Decrypt n bytes of data from input -> output, using the decrypt_state
+ *  passed in VPXD_SET_DECRYPTOR.
+ */
+typedef void (*vpx_decrypt_cb)(void *decrypt_state, const unsigned char *input,
+                               unsigned char *output, int count);
+
+/*!\brief Structure to hold decryption state
+ *
+ * Defines a structure to hold the decryption state and access function.
+ */
+typedef struct vpx_decrypt_init {
+    /*! Decrypt callback. */
+    vpx_decrypt_cb decrypt_cb;
+
+    /*! Decryption state. */
+    void *decrypt_state;
+} vpx_decrypt_init;
+
+/*!\brief A deprecated alias for vpx_decrypt_init.
+ */
+typedef vpx_decrypt_init vp8_decrypt_init;
+
+
+/*!\brief VP8 decoder control function parameter type
+ *
+ * Defines the data types that VP8D control functions take. Note that
+ * additional common controls are defined in vp8.h
+ *
+ */
+
+
+VPX_CTRL_USE_TYPE(VP8D_GET_LAST_REF_UPDATES,    int *)
+VPX_CTRL_USE_TYPE(VP8D_GET_FRAME_CORRUPTED,     int *)
+VPX_CTRL_USE_TYPE(VP8D_GET_LAST_REF_USED,       int *)
+VPX_CTRL_USE_TYPE(VPXD_SET_DECRYPTOR,           vpx_decrypt_init *)
+VPX_CTRL_USE_TYPE(VP8D_SET_DECRYPTOR,           vpx_decrypt_init *)
+VPX_CTRL_USE_TYPE(VP9D_GET_DISPLAY_SIZE,        int *)
+VPX_CTRL_USE_TYPE(VP9D_GET_BIT_DEPTH,           unsigned int *)
+VPX_CTRL_USE_TYPE(VP9D_GET_FRAME_SIZE,          int *)
+VPX_CTRL_USE_TYPE(VP9_INVERT_TILE_DECODE_ORDER, int)
+
+/*! @} - end defgroup vp8_decoder */
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP8DX_H_
diff --git a/media/libvpx/vpx/vpx_codec.h b/media/libvpx/vpx/vpx_codec.h
new file mode 100644
index 000000000..b94e17370
--- /dev/null
+++ b/media/libvpx/vpx/vpx_codec.h
@@ -0,0 +1,479 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\defgroup codec Common Algorithm Interface
+ * This abstraction allows applications to easily support multiple video
+ * formats with minimal code duplication. This section describes the interface
+ * common to all codecs (both encoders and decoders).
+ * @{
+ */
+
+/*!\file
+ * \brief Describes the codec algorithm interface to applications.
+ *
+ * This file describes the interface between an application and a
+ * video codec algorithm.
+ *
+ * An application instantiates a specific codec instance by using
+ * vpx_codec_init() and a pointer to the algorithm's interface structure:
+ *     <pre>
+ *     my_app.c:
+ *       extern vpx_codec_iface_t my_codec;
+ *       {
+ *           vpx_codec_ctx_t algo;
+ *           res = vpx_codec_init(&algo, &my_codec);
+ *       }
+ *     </pre>
+ *
+ * Once initialized, the instance is manged using other functions from
+ * the vpx_codec_* family.
+ */
+#ifndef VPX_VPX_CODEC_H_
+#define VPX_VPX_CODEC_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "./vpx_integer.h"
+#include "./vpx_image.h"
+
+  /*!\brief Decorator indicating a function is deprecated */
+#ifndef DEPRECATED
+#if defined(__GNUC__) && __GNUC__
+#define DEPRECATED          __attribute__ ((deprecated))
+#elif defined(_MSC_VER)
+#define DEPRECATED
+#else
+#define DEPRECATED
+#endif
+#endif  /* DEPRECATED */
+
+#ifndef DECLSPEC_DEPRECATED
+#if defined(__GNUC__) && __GNUC__
+#define DECLSPEC_DEPRECATED /**< \copydoc #DEPRECATED */
+#elif defined(_MSC_VER)
+#define DECLSPEC_DEPRECATED __declspec(deprecated) /**< \copydoc #DEPRECATED */
+#else
+#define DECLSPEC_DEPRECATED /**< \copydoc #DEPRECATED */
+#endif
+#endif  /* DECLSPEC_DEPRECATED */
+
+  /*!\brief Decorator indicating a function is potentially unused */
+#ifdef UNUSED
+#elif __GNUC__
+#define UNUSED __attribute__ ((unused))
+#else
+#define UNUSED
+#endif
+
+  /*!\brief Current ABI version number
+   *
+   * \internal
+   * If this file is altered in any way that changes the ABI, this value
+   * must be bumped.  Examples include, but are not limited to, changing
+   * types, removing or reassigning enums, adding/removing/rearranging
+   * fields to structures
+   */
+#define VPX_CODEC_ABI_VERSION (3 + VPX_IMAGE_ABI_VERSION) /**<\hideinitializer*/
+
+  /*!\brief Algorithm return codes */
+  typedef enum {
+    /*!\brief Operation completed without error */
+    VPX_CODEC_OK,
+
+    /*!\brief Unspecified error */
+    VPX_CODEC_ERROR,
+
+    /*!\brief Memory operation failed */
+    VPX_CODEC_MEM_ERROR,
+
+    /*!\brief ABI version mismatch */
+    VPX_CODEC_ABI_MISMATCH,
+
+    /*!\brief Algorithm does not have required capability */
+    VPX_CODEC_INCAPABLE,
+
+    /*!\brief The given bitstream is not supported.
+     *
+     * The bitstream was unable to be parsed at the highest level. The decoder
+     * is unable to proceed. This error \ref SHOULD be treated as fatal to the
+     * stream. */
+    VPX_CODEC_UNSUP_BITSTREAM,
+
+    /*!\brief Encoded bitstream uses an unsupported feature
+     *
+     * The decoder does not implement a feature required by the encoder. This
+     * return code should only be used for features that prevent future
+     * pictures from being properly decoded. This error \ref MAY be treated as
+     * fatal to the stream or \ref MAY be treated as fatal to the current GOP.
+     */
+    VPX_CODEC_UNSUP_FEATURE,
+
+    /*!\brief The coded data for this stream is corrupt or incomplete
+     *
+     * There was a problem decoding the current frame.  This return code
+     * should only be used for failures that prevent future pictures from
+     * being properly decoded. This error \ref MAY be treated as fatal to the
+     * stream or \ref MAY be treated as fatal to the current GOP. If decoding
+     * is continued for the current GOP, artifacts may be present.
+     */
+    VPX_CODEC_CORRUPT_FRAME,
+
+    /*!\brief An application-supplied parameter is not valid.
+     *
+     */
+    VPX_CODEC_INVALID_PARAM,
+
+    /*!\brief An iterator reached the end of list.
+     *
+     */
+    VPX_CODEC_LIST_END
+
+  }
+  vpx_codec_err_t;
+
+
+  /*! \brief Codec capabilities bitfield
+   *
+   *  Each codec advertises the capabilities it supports as part of its
+   *  ::vpx_codec_iface_t interface structure. Capabilities are extra interfaces
+   *  or functionality, and are not required to be supported.
+   *
+   *  The available flags are specified by VPX_CODEC_CAP_* defines.
+   */
+  typedef long vpx_codec_caps_t;
+#define VPX_CODEC_CAP_DECODER 0x1 /**< Is a decoder */
+#define VPX_CODEC_CAP_ENCODER 0x2 /**< Is an encoder */
+
+
+  /*! \brief Initialization-time Feature Enabling
+   *
+   *  Certain codec features must be known at initialization time, to allow for
+   *  proper memory allocation.
+   *
+   *  The available flags are specified by VPX_CODEC_USE_* defines.
+   */
+  typedef long vpx_codec_flags_t;
+
+
+  /*!\brief Codec interface structure.
+   *
+   * Contains function pointers and other data private to the codec
+   * implementation. This structure is opaque to the application.
+   */
+  typedef const struct vpx_codec_iface vpx_codec_iface_t;
+
+
+  /*!\brief Codec private data structure.
+   *
+   * Contains data private to the codec implementation. This structure is opaque
+   * to the application.
+   */
+  typedef       struct vpx_codec_priv  vpx_codec_priv_t;
+
+
+  /*!\brief Iterator
+   *
+   * Opaque storage used for iterating over lists.
+   */
+  typedef const void *vpx_codec_iter_t;
+
+
+  /*!\brief Codec context structure
+   *
+   * All codecs \ref MUST support this context structure fully. In general,
+   * this data should be considered private to the codec algorithm, and
+   * not be manipulated or examined by the calling application. Applications
+   * may reference the 'name' member to get a printable description of the
+   * algorithm.
+   */
+  typedef struct vpx_codec_ctx {
+    const char              *name;        /**< Printable interface name */
+    vpx_codec_iface_t       *iface;       /**< Interface pointers */
+    vpx_codec_err_t          err;         /**< Last returned error */
+    const char              *err_detail;  /**< Detailed info, if available */
+    vpx_codec_flags_t        init_flags;  /**< Flags passed at init time */
+    union {
+      /**< Decoder Configuration Pointer */
+      const struct vpx_codec_dec_cfg *dec;
+      /**< Encoder Configuration Pointer */
+      const struct vpx_codec_enc_cfg *enc;
+      const void                     *raw;
+    }                        config;      /**< Configuration pointer aliasing union */
+    vpx_codec_priv_t        *priv;        /**< Algorithm private storage */
+  } vpx_codec_ctx_t;
+
+  /*!\brief Bit depth for codec
+   * *
+   * This enumeration determines the bit depth of the codec.
+   */
+  typedef enum vpx_bit_depth {
+    VPX_BITS_8  =  8,  /**<  8 bits */
+    VPX_BITS_10 = 10,  /**< 10 bits */
+    VPX_BITS_12 = 12,  /**< 12 bits */
+  } vpx_bit_depth_t;
+
+  /*
+   * Library Version Number Interface
+   *
+   * For example, see the following sample return values:
+   *     vpx_codec_version()           (1<<16 | 2<<8 | 3)
+   *     vpx_codec_version_str()       "v1.2.3-rc1-16-gec6a1ba"
+   *     vpx_codec_version_extra_str() "rc1-16-gec6a1ba"
+   */
+
+  /*!\brief Return the version information (as an integer)
+   *
+   * Returns a packed encoding of the library version number. This will only include
+   * the major.minor.patch component of the version number. Note that this encoded
+   * value should be accessed through the macros provided, as the encoding may change
+   * in the future.
+   *
+   */
+  int vpx_codec_version(void);
+#define VPX_VERSION_MAJOR(v) ((v>>16)&0xff) /**< extract major from packed version */
+#define VPX_VERSION_MINOR(v) ((v>>8)&0xff)  /**< extract minor from packed version */
+#define VPX_VERSION_PATCH(v) ((v>>0)&0xff)  /**< extract patch from packed version */
+
+  /*!\brief Return the version major number */
+#define vpx_codec_version_major() ((vpx_codec_version()>>16)&0xff)
+
+  /*!\brief Return the version minor number */
+#define vpx_codec_version_minor() ((vpx_codec_version()>>8)&0xff)
+
+  /*!\brief Return the version patch number */
+#define vpx_codec_version_patch() ((vpx_codec_version()>>0)&0xff)
+
+
+  /*!\brief Return the version information (as a string)
+   *
+   * Returns a printable string containing the full library version number. This may
+   * contain additional text following the three digit version number, as to indicate
+   * release candidates, prerelease versions, etc.
+   *
+   */
+  const char *vpx_codec_version_str(void);
+
+
+  /*!\brief Return the version information (as a string)
+   *
+   * Returns a printable "extra string". This is the component of the string returned
+   * by vpx_codec_version_str() following the three digit version number.
+   *
+   */
+  const char *vpx_codec_version_extra_str(void);
+
+
+  /*!\brief Return the build configuration
+   *
+   * Returns a printable string containing an encoded version of the build
+   * configuration. This may be useful to vpx support.
+   *
+   */
+  const char *vpx_codec_build_config(void);
+
+
+  /*!\brief Return the name for a given interface
+   *
+   * Returns a human readable string for name of the given codec interface.
+   *
+   * \param[in]    iface     Interface pointer
+   *
+   */
+  const char *vpx_codec_iface_name(vpx_codec_iface_t *iface);
+
+
+  /*!\brief Convert error number to printable string
+   *
+   * Returns a human readable string for the last error returned by the
+   * algorithm. The returned error will be one line and will not contain
+   * any newline characters.
+   *
+   *
+   * \param[in]    err     Error number.
+   *
+   */
+  const char *vpx_codec_err_to_string(vpx_codec_err_t  err);
+
+
+  /*!\brief Retrieve error synopsis for codec context
+   *
+   * Returns a human readable string for the last error returned by the
+   * algorithm. The returned error will be one line and will not contain
+   * any newline characters.
+   *
+   *
+   * \param[in]    ctx     Pointer to this instance's context.
+   *
+   */
+  const char *vpx_codec_error(vpx_codec_ctx_t  *ctx);
+
+
+  /*!\brief Retrieve detailed error information for codec context
+   *
+   * Returns a human readable string providing detailed information about
+   * the last error.
+   *
+   * \param[in]    ctx     Pointer to this instance's context.
+   *
+   * \retval NULL
+   *     No detailed information is available.
+   */
+  const char *vpx_codec_error_detail(vpx_codec_ctx_t  *ctx);
+
+
+  /* REQUIRED FUNCTIONS
+   *
+   * The following functions are required to be implemented for all codecs.
+   * They represent the base case functionality expected of all codecs.
+   */
+
+  /*!\brief Destroy a codec instance
+   *
+   * Destroys a codec context, freeing any associated memory buffers.
+   *
+   * \param[in] ctx   Pointer to this instance's context
+   *
+   * \retval #VPX_CODEC_OK
+   *     The codec algorithm initialized.
+   * \retval #VPX_CODEC_MEM_ERROR
+   *     Memory allocation failed.
+   */
+  vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx);
+
+
+  /*!\brief Get the capabilities of an algorithm.
+   *
+   * Retrieves the capabilities bitfield from the algorithm's interface.
+   *
+   * \param[in] iface   Pointer to the algorithm interface
+   *
+   */
+  vpx_codec_caps_t vpx_codec_get_caps(vpx_codec_iface_t *iface);
+
+
+  /*!\brief Control algorithm
+   *
+   * This function is used to exchange algorithm specific data with the codec
+   * instance. This can be used to implement features specific to a particular
+   * algorithm.
+   *
+   * This wrapper function dispatches the request to the helper function
+   * associated with the given ctrl_id. It tries to call this function
+   * transparently, but will return #VPX_CODEC_ERROR if the request could not
+   * be dispatched.
+   *
+   * Note that this function should not be used directly. Call the
+   * #vpx_codec_control wrapper macro instead.
+   *
+   * \param[in]     ctx              Pointer to this instance's context
+   * \param[in]     ctrl_id          Algorithm specific control identifier
+   *
+   * \retval #VPX_CODEC_OK
+   *     The control request was processed.
+   * \retval #VPX_CODEC_ERROR
+   *     The control request was not processed.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     The data was not valid.
+   */
+  vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t  *ctx,
+                                     int               ctrl_id,
+                                     ...);
+#if defined(VPX_DISABLE_CTRL_TYPECHECKS) && VPX_DISABLE_CTRL_TYPECHECKS
+#    define vpx_codec_control(ctx,id,data) vpx_codec_control_(ctx,id,data)
+#    define VPX_CTRL_USE_TYPE(id, typ)
+#    define VPX_CTRL_USE_TYPE_DEPRECATED(id, typ)
+#    define VPX_CTRL_VOID(id, typ)
+
+#else
+  /*!\brief vpx_codec_control wrapper macro
+   *
+   * This macro allows for type safe conversions across the variadic parameter
+   * to vpx_codec_control_().
+   *
+   * \internal
+   * It works by dispatching the call to the control function through a wrapper
+   * function named with the id parameter.
+   */
+#    define vpx_codec_control(ctx,id,data) vpx_codec_control_##id(ctx,id,data)\
+  /**<\hideinitializer*/
+
+
+  /*!\brief vpx_codec_control type definition macro
+   *
+   * This macro allows for type safe conversions across the variadic parameter
+   * to vpx_codec_control_(). It defines the type of the argument for a given
+   * control identifier.
+   *
+   * \internal
+   * It defines a static function with
+   * the correctly typed arguments as a wrapper to the type-unsafe internal
+   * function.
+   */
+#    define VPX_CTRL_USE_TYPE(id, typ) \
+  static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t*, int, typ) UNUSED;\
+  \
+  static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t  *ctx, int ctrl_id, typ data) {\
+    return vpx_codec_control_(ctx, ctrl_id, data);\
+  } /**<\hideinitializer*/
+
+
+  /*!\brief vpx_codec_control deprecated type definition macro
+   *
+   * Like #VPX_CTRL_USE_TYPE, but indicates that the specified control is
+   * deprecated and should not be used. Consult the documentation for your
+   * codec for more information.
+   *
+   * \internal
+   * It defines a static function with the correctly typed arguments as a
+   * wrapper to the type-unsafe internal function.
+   */
+#    define VPX_CTRL_USE_TYPE_DEPRECATED(id, typ) \
+  DECLSPEC_DEPRECATED static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t*, int, typ) DEPRECATED UNUSED;\
+  \
+  DECLSPEC_DEPRECATED static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t  *ctx, int ctrl_id, typ data) {\
+    return vpx_codec_control_(ctx, ctrl_id, data);\
+  } /**<\hideinitializer*/
+
+
+  /*!\brief vpx_codec_control void type definition macro
+   *
+   * This macro allows for type safe conversions across the variadic parameter
+   * to vpx_codec_control_(). It indicates that a given control identifier takes
+   * no argument.
+   *
+   * \internal
+   * It defines a static function without a data argument as a wrapper to the
+   * type-unsafe internal function.
+   */
+#    define VPX_CTRL_VOID(id) \
+  static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t*, int) UNUSED;\
+  \
+  static vpx_codec_err_t \
+  vpx_codec_control_##id(vpx_codec_ctx_t  *ctx, int ctrl_id) {\
+    return vpx_codec_control_(ctx, ctrl_id);\
+  } /**<\hideinitializer*/
+
+
+#endif
+
+  /*!@} - end defgroup codec*/
+#ifdef __cplusplus
+}
+#endif
+#endif  // VPX_VPX_CODEC_H_
+
diff --git a/media/libvpx/vpx/vpx_decoder.h b/media/libvpx/vpx/vpx_decoder.h
new file mode 100644
index 000000000..62fd91975
--- /dev/null
+++ b/media/libvpx/vpx/vpx_decoder.h
@@ -0,0 +1,378 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VPX_VPX_DECODER_H_
+#define VPX_VPX_DECODER_H_
+
+/*!\defgroup decoder Decoder Algorithm Interface
+ * \ingroup codec
+ * This abstraction allows applications using this decoder to easily support
+ * multiple video formats with minimal code duplication. This section describes
+ * the interface common to all decoders.
+ * @{
+ */
+
+/*!\file
+ * \brief Describes the decoder algorithm interface to applications.
+ *
+ * This file describes the interface between an application and a
+ * video decoder algorithm.
+ *
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "./vpx_codec.h"
+#include "./vpx_frame_buffer.h"
+
+  /*!\brief Current ABI version number
+   *
+   * \internal
+   * If this file is altered in any way that changes the ABI, this value
+   * must be bumped.  Examples include, but are not limited to, changing
+   * types, removing or reassigning enums, adding/removing/rearranging
+   * fields to structures
+   */
+#define VPX_DECODER_ABI_VERSION (3 + VPX_CODEC_ABI_VERSION) /**<\hideinitializer*/
+
+  /*! \brief Decoder capabilities bitfield
+   *
+   *  Each decoder advertises the capabilities it supports as part of its
+   *  ::vpx_codec_iface_t interface structure. Capabilities are extra interfaces
+   *  or functionality, and are not required to be supported by a decoder.
+   *
+   *  The available flags are specified by VPX_CODEC_CAP_* defines.
+   */
+#define VPX_CODEC_CAP_PUT_SLICE  0x10000 /**< Will issue put_slice callbacks */
+#define VPX_CODEC_CAP_PUT_FRAME  0x20000 /**< Will issue put_frame callbacks */
+#define VPX_CODEC_CAP_POSTPROC   0x40000 /**< Can postprocess decoded frame */
+#define VPX_CODEC_CAP_ERROR_CONCEALMENT   0x80000 /**< Can conceal errors due to
+  packet loss */
+#define VPX_CODEC_CAP_INPUT_FRAGMENTS   0x100000 /**< Can receive encoded frames
+  one fragment at a time */
+
+  /*! \brief Initialization-time Feature Enabling
+   *
+   *  Certain codec features must be known at initialization time, to allow for
+   *  proper memory allocation.
+   *
+   *  The available flags are specified by VPX_CODEC_USE_* defines.
+   */
+#define VPX_CODEC_CAP_FRAME_THREADING   0x200000 /**< Can support frame-based
+                                                      multi-threading */
+#define VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER 0x400000 /**< Can support external
+                                                          frame buffers */
+
+#define VPX_CODEC_USE_POSTPROC   0x10000 /**< Postprocess decoded frame */
+#define VPX_CODEC_USE_ERROR_CONCEALMENT 0x20000 /**< Conceal errors in decoded
+  frames */
+#define VPX_CODEC_USE_INPUT_FRAGMENTS   0x40000 /**< The input frame should be
+  passed to the decoder one
+  fragment at a time */
+#define VPX_CODEC_USE_FRAME_THREADING   0x80000 /**< Enable frame-based
+                                                     multi-threading */
+
+  /*!\brief Stream properties
+   *
+   * This structure is used to query or set properties of the decoded
+   * stream. Algorithms may extend this structure with data specific
+   * to their bitstream by setting the sz member appropriately.
+   */
+  typedef struct vpx_codec_stream_info {
+    unsigned int sz;     /**< Size of this structure */
+    unsigned int w;      /**< Width (or 0 for unknown/default) */
+    unsigned int h;      /**< Height (or 0 for unknown/default) */
+    unsigned int is_kf;  /**< Current frame is a keyframe */
+  } vpx_codec_stream_info_t;
+
+  /* REQUIRED FUNCTIONS
+   *
+   * The following functions are required to be implemented for all decoders.
+   * They represent the base case functionality expected of all decoders.
+   */
+
+
+  /*!\brief Initialization Configurations
+   *
+   * This structure is used to pass init time configuration options to the
+   * decoder.
+   */
+  typedef struct vpx_codec_dec_cfg {
+    unsigned int threads; /**< Maximum number of threads to use, default 1 */
+    unsigned int w;      /**< Width */
+    unsigned int h;      /**< Height */
+  } vpx_codec_dec_cfg_t; /**< alias for struct vpx_codec_dec_cfg */
+
+
+  /*!\brief Initialize a decoder instance
+   *
+   * Initializes a decoder context using the given interface. Applications
+   * should call the vpx_codec_dec_init convenience macro instead of this
+   * function directly, to ensure that the ABI version number parameter
+   * is properly initialized.
+   *
+   * If the library was configured with --disable-multithread, this call
+   * is not thread safe and should be guarded with a lock if being used
+   * in a multithreaded context.
+   *
+   * \param[in]    ctx     Pointer to this instance's context.
+   * \param[in]    iface   Pointer to the algorithm interface to use.
+   * \param[in]    cfg     Configuration to use, if known. May be NULL.
+   * \param[in]    flags   Bitfield of VPX_CODEC_USE_* flags
+   * \param[in]    ver     ABI version number. Must be set to
+   *                       VPX_DECODER_ABI_VERSION
+   * \retval #VPX_CODEC_OK
+   *     The decoder algorithm initialized.
+   * \retval #VPX_CODEC_MEM_ERROR
+   *     Memory allocation failed.
+   */
+  vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t      *ctx,
+                                         vpx_codec_iface_t    *iface,
+                                         const vpx_codec_dec_cfg_t *cfg,
+                                         vpx_codec_flags_t     flags,
+                                         int                   ver);
+
+  /*!\brief Convenience macro for vpx_codec_dec_init_ver()
+   *
+   * Ensures the ABI version parameter is properly set.
+   */
+#define vpx_codec_dec_init(ctx, iface, cfg, flags) \
+  vpx_codec_dec_init_ver(ctx, iface, cfg, flags, VPX_DECODER_ABI_VERSION)
+
+
+  /*!\brief Parse stream info from a buffer
+   *
+   * Performs high level parsing of the bitstream. Construction of a decoder
+   * context is not necessary. Can be used to determine if the bitstream is
+   * of the proper format, and to extract information from the stream.
+   *
+   * \param[in]      iface   Pointer to the algorithm interface
+   * \param[in]      data    Pointer to a block of data to parse
+   * \param[in]      data_sz Size of the data buffer
+   * \param[in,out]  si      Pointer to stream info to update. The size member
+   *                         \ref MUST be properly initialized, but \ref MAY be
+   *                         clobbered by the algorithm. This parameter \ref MAY
+   *                         be NULL.
+   *
+   * \retval #VPX_CODEC_OK
+   *     Bitstream is parsable and stream information updated
+   */
+  vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t       *iface,
+                                             const uint8_t           *data,
+                                             unsigned int             data_sz,
+                                             vpx_codec_stream_info_t *si);
+
+
+  /*!\brief Return information about the current stream.
+   *
+   * Returns information about the stream that has been parsed during decoding.
+   *
+   * \param[in]      ctx     Pointer to this instance's context
+   * \param[in,out]  si      Pointer to stream info to update. The size member
+   *                         \ref MUST be properly initialized, but \ref MAY be
+   *                         clobbered by the algorithm. This parameter \ref MAY
+   *                         be NULL.
+   *
+   * \retval #VPX_CODEC_OK
+   *     Bitstream is parsable and stream information updated
+   */
+  vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t         *ctx,
+                                            vpx_codec_stream_info_t *si);
+
+
+  /*!\brief Decode data
+   *
+   * Processes a buffer of coded data. If the processing results in a new
+   * decoded frame becoming available, PUT_SLICE and PUT_FRAME events may be
+   * generated, as appropriate. Encoded data \ref MUST be passed in DTS (decode
+   * time stamp) order. Frames produced will always be in PTS (presentation
+   * time stamp) order.
+   * If the decoder is configured with VPX_CODEC_USE_INPUT_FRAGMENTS enabled,
+   * data and data_sz can contain a fragment of the encoded frame. Fragment
+   * \#n must contain at least partition \#n, but can also contain subsequent
+   * partitions (\#n+1 - \#n+i), and if so, fragments \#n+1, .., \#n+i must
+   * be empty. When no more data is available, this function should be called
+   * with NULL as data and 0 as data_sz. The memory passed to this function
+   * must be available until the frame has been decoded.
+   *
+   * \param[in] ctx          Pointer to this instance's context
+   * \param[in] data         Pointer to this block of new coded data. If
+   *                         NULL, a VPX_CODEC_CB_PUT_FRAME event is posted
+   *                         for the previously decoded frame.
+   * \param[in] data_sz      Size of the coded data, in bytes.
+   * \param[in] user_priv    Application specific data to associate with
+   *                         this frame.
+   * \param[in] deadline     Soft deadline the decoder should attempt to meet,
+   *                         in us. Set to zero for unlimited.
+   *
+   * \return Returns #VPX_CODEC_OK if the coded data was processed completely
+   *         and future pictures can be decoded without error. Otherwise,
+   *         see the descriptions of the other error codes in ::vpx_codec_err_t
+   *         for recoverability capabilities.
+   */
+  vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t    *ctx,
+                                   const uint8_t        *data,
+                                   unsigned int            data_sz,
+                                   void               *user_priv,
+                                   long                deadline);
+
+
+  /*!\brief Decoded frames iterator
+   *
+   * Iterates over a list of the frames available for display. The iterator
+   * storage should be initialized to NULL to start the iteration. Iteration is
+   * complete when this function returns NULL.
+   *
+   * The list of available frames becomes valid upon completion of the
+   * vpx_codec_decode call, and remains valid until the next call to vpx_codec_decode.
+   *
+   * \param[in]     ctx      Pointer to this instance's context
+   * \param[in,out] iter     Iterator storage, initialized to NULL
+   *
+   * \return Returns a pointer to an image, if one is ready for display. Frames
+   *         produced will always be in PTS (presentation time stamp) order.
+   */
+  vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t  *ctx,
+                                   vpx_codec_iter_t *iter);
+
+
+  /*!\defgroup cap_put_frame Frame-Based Decoding Functions
+   *
+   * The following functions are required to be implemented for all decoders
+   * that advertise the VPX_CODEC_CAP_PUT_FRAME capability. Calling these functions
+   * for codecs that don't advertise this capability will result in an error
+   * code being returned, usually VPX_CODEC_ERROR
+   * @{
+   */
+
+  /*!\brief put frame callback prototype
+   *
+   * This callback is invoked by the decoder to notify the application of
+   * the availability of decoded image data.
+   */
+  typedef void (*vpx_codec_put_frame_cb_fn_t)(void        *user_priv,
+                                              const vpx_image_t *img);
+
+
+  /*!\brief Register for notification of frame completion.
+   *
+   * Registers a given function to be called when a decoded frame is
+   * available.
+   *
+   * \param[in] ctx          Pointer to this instance's context
+   * \param[in] cb           Pointer to the callback function
+   * \param[in] user_priv    User's private data
+   *
+   * \retval #VPX_CODEC_OK
+   *     Callback successfully registered.
+   * \retval #VPX_CODEC_ERROR
+   *     Decoder context not initialized, or algorithm not capable of
+   *     posting slice completion.
+   */
+  vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t             *ctx,
+                                                  vpx_codec_put_frame_cb_fn_t  cb,
+                                                  void                        *user_priv);
+
+
+  /*!@} - end defgroup cap_put_frame */
+
+  /*!\defgroup cap_put_slice Slice-Based Decoding Functions
+   *
+   * The following functions are required to be implemented for all decoders
+   * that advertise the VPX_CODEC_CAP_PUT_SLICE capability. Calling these functions
+   * for codecs that don't advertise this capability will result in an error
+   * code being returned, usually VPX_CODEC_ERROR
+   * @{
+   */
+
+  /*!\brief put slice callback prototype
+   *
+   * This callback is invoked by the decoder to notify the application of
+   * the availability of partially decoded image data. The
+   */
+  typedef void (*vpx_codec_put_slice_cb_fn_t)(void         *user_priv,
+                                              const vpx_image_t      *img,
+                                              const vpx_image_rect_t *valid,
+                                              const vpx_image_rect_t *update);
+
+
+  /*!\brief Register for notification of slice completion.
+   *
+   * Registers a given function to be called when a decoded slice is
+   * available.
+   *
+   * \param[in] ctx          Pointer to this instance's context
+   * \param[in] cb           Pointer to the callback function
+   * \param[in] user_priv    User's private data
+   *
+   * \retval #VPX_CODEC_OK
+   *     Callback successfully registered.
+   * \retval #VPX_CODEC_ERROR
+   *     Decoder context not initialized, or algorithm not capable of
+   *     posting slice completion.
+   */
+  vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t             *ctx,
+                                                  vpx_codec_put_slice_cb_fn_t  cb,
+                                                  void                        *user_priv);
+
+
+  /*!@} - end defgroup cap_put_slice*/
+
+  /*!\defgroup cap_external_frame_buffer External Frame Buffer Functions
+   *
+   * The following section is required to be implemented for all decoders
+   * that advertise the VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER capability.
+   * Calling this function for codecs that don't advertise this capability
+   * will result in an error code being returned, usually VPX_CODEC_ERROR.
+   *
+   * \note
+   * Currently this only works with VP9.
+   * @{
+   */
+
+  /*!\brief Pass in external frame buffers for the decoder to use.
+   *
+   * Registers functions to be called when libvpx needs a frame buffer
+   * to decode the current frame and a function to be called when libvpx does
+   * not internally reference the frame buffer. This set function must
+   * be called before the first call to decode or libvpx will assume the
+   * default behavior of allocating frame buffers internally.
+   *
+   * \param[in] ctx          Pointer to this instance's context
+   * \param[in] cb_get       Pointer to the get callback function
+   * \param[in] cb_release   Pointer to the release callback function
+   * \param[in] cb_priv      Callback's private data
+   *
+   * \retval #VPX_CODEC_OK
+   *     External frame buffers will be used by libvpx.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     One or more of the callbacks were NULL.
+   * \retval #VPX_CODEC_ERROR
+   *     Decoder context not initialized, or algorithm not capable of
+   *     using external frame buffers.
+   *
+   * \note
+   * When decoding VP9, the application may be required to pass in at least
+   * #VP9_MAXIMUM_REF_BUFFERS + #VPX_MAXIMUM_WORK_BUFFERS external frame
+   * buffers.
+   */
+  vpx_codec_err_t vpx_codec_set_frame_buffer_functions(
+      vpx_codec_ctx_t *ctx,
+      vpx_get_frame_buffer_cb_fn_t cb_get,
+      vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv);
+
+  /*!@} - end defgroup cap_external_frame_buffer */
+
+  /*!@} - end defgroup decoder*/
+#ifdef __cplusplus
+}
+#endif
+#endif  // VPX_VPX_DECODER_H_
+
diff --git a/media/libvpx/vpx/vpx_encoder.h b/media/libvpx/vpx/vpx_encoder.h
new file mode 100644
index 000000000..2b17f98a2
--- /dev/null
+++ b/media/libvpx/vpx/vpx_encoder.h
@@ -0,0 +1,1043 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VPX_VPX_ENCODER_H_
+#define VPX_VPX_ENCODER_H_
+
+/*!\defgroup encoder Encoder Algorithm Interface
+ * \ingroup codec
+ * This abstraction allows applications using this encoder to easily support
+ * multiple video formats with minimal code duplication. This section describes
+ * the interface common to all encoders.
+ * @{
+ */
+
+/*!\file
+ * \brief Describes the encoder algorithm interface to applications.
+ *
+ * This file describes the interface between an application and a
+ * video encoder algorithm.
+ *
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "./vpx_codec.h"
+
+  /*! Temporal Scalability: Maximum length of the sequence defining frame
+   * layer membership
+   */
+#define VPX_TS_MAX_PERIODICITY 16
+
+  /*! Temporal Scalability: Maximum number of coding layers */
+#define VPX_TS_MAX_LAYERS       5
+
+  /*!\deprecated Use #VPX_TS_MAX_PERIODICITY instead. */
+#define MAX_PERIODICITY VPX_TS_MAX_PERIODICITY
+
+/*! Temporal+Spatial Scalability: Maximum number of coding layers */
+#define VPX_MAX_LAYERS  12  // 3 temporal + 4 spatial layers are allowed.
+
+/*!\deprecated Use #VPX_MAX_LAYERS instead. */
+#define MAX_LAYERS    VPX_MAX_LAYERS  // 3 temporal + 4 spatial layers allowed.
+
+/*! Spatial Scalability: Maximum number of coding layers */
+#define VPX_SS_MAX_LAYERS       5
+
+/*! Spatial Scalability: Default number of coding layers */
+#define VPX_SS_DEFAULT_LAYERS       1
+
+  /*!\brief Current ABI version number
+   *
+   * \internal
+   * If this file is altered in any way that changes the ABI, this value
+   * must be bumped.  Examples include, but are not limited to, changing
+   * types, removing or reassigning enums, adding/removing/rearranging
+   * fields to structures
+   */
+#define VPX_ENCODER_ABI_VERSION (5 + VPX_CODEC_ABI_VERSION) /**<\hideinitializer*/
+
+
+  /*! \brief Encoder capabilities bitfield
+   *
+   *  Each encoder advertises the capabilities it supports as part of its
+   *  ::vpx_codec_iface_t interface structure. Capabilities are extra
+   *  interfaces or functionality, and are not required to be supported
+   *  by an encoder.
+   *
+   *  The available flags are specified by VPX_CODEC_CAP_* defines.
+   */
+#define VPX_CODEC_CAP_PSNR  0x10000 /**< Can issue PSNR packets */
+
+  /*! Can output one partition at a time. Each partition is returned in its
+   *  own VPX_CODEC_CX_FRAME_PKT, with the FRAME_IS_FRAGMENT flag set for
+   *  every partition but the last. In this mode all frames are always
+   *  returned partition by partition.
+   */
+#define VPX_CODEC_CAP_OUTPUT_PARTITION  0x20000
+
+/*! Can support input images at greater than 8 bitdepth.
+ */
+#define VPX_CODEC_CAP_HIGHBITDEPTH  0x40000
+
+  /*! \brief Initialization-time Feature Enabling
+   *
+   *  Certain codec features must be known at initialization time, to allow
+   *  for proper memory allocation.
+   *
+   *  The available flags are specified by VPX_CODEC_USE_* defines.
+   */
+#define VPX_CODEC_USE_PSNR  0x10000 /**< Calculate PSNR on each frame */
+#define VPX_CODEC_USE_OUTPUT_PARTITION  0x20000 /**< Make the encoder output one
+  partition at a time. */
+#define VPX_CODEC_USE_HIGHBITDEPTH 0x40000 /**< Use high bitdepth */
+
+
+  /*!\brief Generic fixed size buffer structure
+   *
+   * This structure is able to hold a reference to any fixed size buffer.
+   */
+  typedef struct vpx_fixed_buf {
+    void          *buf; /**< Pointer to the data */
+    size_t         sz;  /**< Length of the buffer, in chars */
+  } vpx_fixed_buf_t; /**< alias for struct vpx_fixed_buf */
+
+
+  /*!\brief Time Stamp Type
+   *
+   * An integer, which when multiplied by the stream's time base, provides
+   * the absolute time of a sample.
+   */
+  typedef int64_t vpx_codec_pts_t;
+
+
+  /*!\brief Compressed Frame Flags
+   *
+   * This type represents a bitfield containing information about a compressed
+   * frame that may be useful to an application. The most significant 16 bits
+   * can be used by an algorithm to provide additional detail, for example to
+   * support frame types that are codec specific (MPEG-1 D-frames for example)
+   */
+  typedef uint32_t vpx_codec_frame_flags_t;
+#define VPX_FRAME_IS_KEY       0x1 /**< frame is the start of a GOP */
+#define VPX_FRAME_IS_DROPPABLE 0x2 /**< frame can be dropped without affecting
+  the stream (no future frame depends on
+              this one) */
+#define VPX_FRAME_IS_INVISIBLE 0x4 /**< frame should be decoded but will not
+  be shown */
+#define VPX_FRAME_IS_FRAGMENT  0x8 /**< this is a fragment of the encoded
+  frame */
+
+  /*!\brief Error Resilient flags
+   *
+   * These flags define which error resilient features to enable in the
+   * encoder. The flags are specified through the
+   * vpx_codec_enc_cfg::g_error_resilient variable.
+   */
+  typedef uint32_t vpx_codec_er_flags_t;
+#define VPX_ERROR_RESILIENT_DEFAULT     0x1 /**< Improve resiliency against
+  losses of whole frames */
+#define VPX_ERROR_RESILIENT_PARTITIONS  0x2 /**< The frame partitions are
+  independently decodable by the
+  bool decoder, meaning that
+  partitions can be decoded even
+  though earlier partitions have
+  been lost. Note that intra
+  predicition is still done over
+  the partition boundary. */
+
+  /*!\brief Encoder output packet variants
+   *
+   * This enumeration lists the different kinds of data packets that can be
+   * returned by calls to vpx_codec_get_cx_data(). Algorithms \ref MAY
+   * extend this list to provide additional functionality.
+   */
+  enum vpx_codec_cx_pkt_kind {
+    VPX_CODEC_CX_FRAME_PKT,    /**< Compressed video frame */
+    VPX_CODEC_STATS_PKT,       /**< Two-pass statistics for this frame */
+    VPX_CODEC_FPMB_STATS_PKT,  /**< first pass mb statistics for this frame */
+    VPX_CODEC_PSNR_PKT,        /**< PSNR statistics for this frame */
+    // Spatial SVC is still experimental and may be removed before the next ABI
+    // bump.
+#if VPX_ENCODER_ABI_VERSION > (5 + VPX_CODEC_ABI_VERSION)
+    VPX_CODEC_SPATIAL_SVC_LAYER_SIZES, /**< Sizes for each layer in this frame*/
+    VPX_CODEC_SPATIAL_SVC_LAYER_PSNR, /**< PSNR for each layer in this frame*/
+#endif
+    VPX_CODEC_CUSTOM_PKT = 256 /**< Algorithm extensions  */
+  };
+
+
+  /*!\brief Encoder output packet
+   *
+   * This structure contains the different kinds of output data the encoder
+   * may produce while compressing a frame.
+   */
+  typedef struct vpx_codec_cx_pkt {
+    enum vpx_codec_cx_pkt_kind  kind; /**< packet variant */
+    union {
+      struct {
+        void                    *buf;      /**< compressed data buffer */
+        size_t                   sz;       /**< length of compressed data */
+        vpx_codec_pts_t          pts;      /**< time stamp to show frame
+                                                    (in timebase units) */
+        unsigned long            duration; /**< duration to show frame
+                                                    (in timebase units) */
+        vpx_codec_frame_flags_t  flags;    /**< flags for this frame */
+        int                      partition_id; /**< the partition id
+                                              defines the decoding order
+                                              of the partitions. Only
+                                              applicable when "output partition"
+                                              mode is enabled. First partition
+                                              has id 0.*/
+
+      } frame;  /**< data for compressed frame packet */
+      vpx_fixed_buf_t twopass_stats;  /**< data for two-pass packet */
+      vpx_fixed_buf_t firstpass_mb_stats; /**< first pass mb packet */
+      struct vpx_psnr_pkt {
+        unsigned int samples[4];  /**< Number of samples, total/y/u/v */
+        uint64_t     sse[4];      /**< sum squared error, total/y/u/v */
+        double       psnr[4];     /**< PSNR, total/y/u/v */
+      } psnr;                       /**< data for PSNR packet */
+      vpx_fixed_buf_t raw;     /**< data for arbitrary packets */
+      // Spatial SVC is still experimental and may be removed before the next
+      // ABI bump.
+#if VPX_ENCODER_ABI_VERSION > (5 + VPX_CODEC_ABI_VERSION)
+      size_t layer_sizes[VPX_SS_MAX_LAYERS];
+      struct vpx_psnr_pkt layer_psnr[VPX_SS_MAX_LAYERS];
+#endif
+
+      /* This packet size is fixed to allow codecs to extend this
+       * interface without having to manage storage for raw packets,
+       * i.e., if it's smaller than 128 bytes, you can store in the
+       * packet list directly.
+       */
+      char pad[128 - sizeof(enum vpx_codec_cx_pkt_kind)]; /**< fixed sz */
+    } data; /**< packet data */
+  } vpx_codec_cx_pkt_t; /**< alias for struct vpx_codec_cx_pkt */
+
+
+  /*!\brief Encoder return output buffer callback
+   *
+   * This callback function, when registered, returns with packets when each
+   * spatial layer is encoded.
+   */
+  // putting the definitions here for now. (agrange: find if there
+  // is a better place for this)
+  typedef void (* vpx_codec_enc_output_cx_pkt_cb_fn_t)(vpx_codec_cx_pkt_t *pkt,
+                                                       void *user_data);
+
+  /*!\brief Callback function pointer / user data pair storage */
+  typedef struct vpx_codec_enc_output_cx_cb_pair {
+    vpx_codec_enc_output_cx_pkt_cb_fn_t output_cx_pkt; /**< Callback function */
+    void                            *user_priv; /**< Pointer to private data */
+  } vpx_codec_priv_output_cx_pkt_cb_pair_t;
+
+  /*!\brief Rational Number
+   *
+   * This structure holds a fractional value.
+   */
+  typedef struct vpx_rational {
+    int num; /**< fraction numerator */
+    int den; /**< fraction denominator */
+  } vpx_rational_t; /**< alias for struct vpx_rational */
+
+
+  /*!\brief Multi-pass Encoding Pass */
+  enum vpx_enc_pass {
+    VPX_RC_ONE_PASS,   /**< Single pass mode */
+    VPX_RC_FIRST_PASS, /**< First pass of multi-pass mode */
+    VPX_RC_LAST_PASS   /**< Final pass of multi-pass mode */
+  };
+
+
+  /*!\brief Rate control mode */
+  enum vpx_rc_mode {
+    VPX_VBR,  /**< Variable Bit Rate (VBR) mode */
+    VPX_CBR,  /**< Constant Bit Rate (CBR) mode */
+    VPX_CQ,   /**< Constrained Quality (CQ)  mode */
+    VPX_Q,    /**< Constant Quality (Q) mode */
+  };
+
+
+  /*!\brief Keyframe placement mode.
+   *
+   * This enumeration determines whether keyframes are placed automatically by
+   * the encoder or whether this behavior is disabled. Older releases of this
+   * SDK were implemented such that VPX_KF_FIXED meant keyframes were disabled.
+   * This name is confusing for this behavior, so the new symbols to be used
+   * are VPX_KF_AUTO and VPX_KF_DISABLED.
+   */
+  enum vpx_kf_mode {
+    VPX_KF_FIXED, /**< deprecated, implies VPX_KF_DISABLED */
+    VPX_KF_AUTO,  /**< Encoder determines optimal placement automatically */
+    VPX_KF_DISABLED = 0 /**< Encoder does not place keyframes. */
+  };
+
+
+  /*!\brief Encoded Frame Flags
+   *
+   * This type indicates a bitfield to be passed to vpx_codec_encode(), defining
+   * per-frame boolean values. By convention, bits common to all codecs will be
+   * named VPX_EFLAG_*, and bits specific to an algorithm will be named
+   * /algo/_eflag_*. The lower order 16 bits are reserved for common use.
+   */
+  typedef long vpx_enc_frame_flags_t;
+#define VPX_EFLAG_FORCE_KF (1<<0)  /**< Force this frame to be a keyframe */
+
+
+  /*!\brief Encoder configuration structure
+   *
+   * This structure contains the encoder settings that have common representations
+   * across all codecs. This doesn't imply that all codecs support all features,
+   * however.
+   */
+  typedef struct vpx_codec_enc_cfg {
+    /*
+     * generic settings (g)
+     */
+
+    /*!\brief Algorithm specific "usage" value
+     *
+     * Algorithms may define multiple values for usage, which may convey the
+     * intent of how the application intends to use the stream. If this value
+     * is non-zero, consult the documentation for the codec to determine its
+     * meaning.
+     */
+    unsigned int           g_usage;
+
+
+    /*!\brief Maximum number of threads to use
+     *
+     * For multi-threaded implementations, use no more than this number of
+     * threads. The codec may use fewer threads than allowed. The value
+     * 0 is equivalent to the value 1.
+     */
+    unsigned int           g_threads;
+
+
+    /*!\brief Bitstream profile to use
+     *
+     * Some codecs support a notion of multiple bitstream profiles. Typically
+     * this maps to a set of features that are turned on or off. Often the
+     * profile to use is determined by the features of the intended decoder.
+     * Consult the documentation for the codec to determine the valid values
+     * for this parameter, or set to zero for a sane default.
+     */
+    unsigned int           g_profile;  /**< profile of bitstream to use */
+
+
+
+    /*!\brief Width of the frame
+     *
+     * This value identifies the presentation resolution of the frame,
+     * in pixels. Note that the frames passed as input to the encoder must
+     * have this resolution. Frames will be presented by the decoder in this
+     * resolution, independent of any spatial resampling the encoder may do.
+     */
+    unsigned int           g_w;
+
+
+    /*!\brief Height of the frame
+     *
+     * This value identifies the presentation resolution of the frame,
+     * in pixels. Note that the frames passed as input to the encoder must
+     * have this resolution. Frames will be presented by the decoder in this
+     * resolution, independent of any spatial resampling the encoder may do.
+     */
+    unsigned int           g_h;
+
+    /*!\brief Bit-depth of the codec
+     *
+     * This value identifies the bit_depth of the codec,
+     * Only certain bit-depths are supported as identified in the
+     * vpx_bit_depth_t enum.
+     */
+    vpx_bit_depth_t        g_bit_depth;
+
+    /*!\brief Bit-depth of the input frames
+     *
+     * This value identifies the bit_depth of the input frames in bits.
+     * Note that the frames passed as input to the encoder must have
+     * this bit-depth.
+     */
+    unsigned int           g_input_bit_depth;
+
+    /*!\brief Stream timebase units
+     *
+     * Indicates the smallest interval of time, in seconds, used by the stream.
+     * For fixed frame rate material, or variable frame rate material where
+     * frames are timed at a multiple of a given clock (ex: video capture),
+     * the \ref RECOMMENDED method is to set the timebase to the reciprocal
+     * of the frame rate (ex: 1001/30000 for 29.970 Hz NTSC). This allows the
+     * pts to correspond to the frame number, which can be handy. For
+     * re-encoding video from containers with absolute time timestamps, the
+     * \ref RECOMMENDED method is to set the timebase to that of the parent
+     * container or multimedia framework (ex: 1/1000 for ms, as in FLV).
+     */
+    struct vpx_rational    g_timebase;
+
+
+    /*!\brief Enable error resilient modes.
+     *
+     * The error resilient bitfield indicates to the encoder which features
+     * it should enable to take measures for streaming over lossy or noisy
+     * links.
+     */
+    vpx_codec_er_flags_t   g_error_resilient;
+
+
+    /*!\brief Multi-pass Encoding Mode
+     *
+     * This value should be set to the current phase for multi-pass encoding.
+     * For single pass, set to #VPX_RC_ONE_PASS.
+     */
+    enum vpx_enc_pass      g_pass;
+
+
+    /*!\brief Allow lagged encoding
+     *
+     * If set, this value allows the encoder to consume a number of input
+     * frames before producing output frames. This allows the encoder to
+     * base decisions for the current frame on future frames. This does
+     * increase the latency of the encoding pipeline, so it is not appropriate
+     * in all situations (ex: realtime encoding).
+     *
+     * Note that this is a maximum value -- the encoder may produce frames
+     * sooner than the given limit. Set this value to 0 to disable this
+     * feature.
+     */
+    unsigned int           g_lag_in_frames;
+
+
+    /*
+     * rate control settings (rc)
+     */
+
+    /*!\brief Temporal resampling configuration, if supported by the codec.
+     *
+     * Temporal resampling allows the codec to "drop" frames as a strategy to
+     * meet its target data rate. This can cause temporal discontinuities in
+     * the encoded video, which may appear as stuttering during playback. This
+     * trade-off is often acceptable, but for many applications is not. It can
+     * be disabled in these cases.
+     *
+     * Note that not all codecs support this feature. All vpx VPx codecs do.
+     * For other codecs, consult the documentation for that algorithm.
+     *
+     * This threshold is described as a percentage of the target data buffer.
+     * When the data buffer falls below this percentage of fullness, a
+     * dropped frame is indicated. Set the threshold to zero (0) to disable
+     * this feature.
+     */
+    unsigned int           rc_dropframe_thresh;
+
+
+    /*!\brief Enable/disable spatial resampling, if supported by the codec.
+     *
+     * Spatial resampling allows the codec to compress a lower resolution
+     * version of the frame, which is then upscaled by the encoder to the
+     * correct presentation resolution. This increases visual quality at
+     * low data rates, at the expense of CPU time on the encoder/decoder.
+     */
+    unsigned int           rc_resize_allowed;
+
+    /*!\brief Internal coded frame width.
+     *
+     * If spatial resampling is enabled this specifies the width of the
+     * encoded frame.
+     */
+    unsigned int           rc_scaled_width;
+
+    /*!\brief Internal coded frame height.
+     *
+     * If spatial resampling is enabled this specifies the height of the
+     * encoded frame.
+     */
+    unsigned int           rc_scaled_height;
+
+    /*!\brief Spatial resampling up watermark.
+     *
+     * This threshold is described as a percentage of the target data buffer.
+     * When the data buffer rises above this percentage of fullness, the
+     * encoder will step up to a higher resolution version of the frame.
+     */
+    unsigned int           rc_resize_up_thresh;
+
+
+    /*!\brief Spatial resampling down watermark.
+     *
+     * This threshold is described as a percentage of the target data buffer.
+     * When the data buffer falls below this percentage of fullness, the
+     * encoder will step down to a lower resolution version of the frame.
+     */
+    unsigned int           rc_resize_down_thresh;
+
+
+    /*!\brief Rate control algorithm to use.
+     *
+     * Indicates whether the end usage of this stream is to be streamed over
+     * a bandwidth constrained link, indicating that Constant Bit Rate (CBR)
+     * mode should be used, or whether it will be played back on a high
+     * bandwidth link, as from a local disk, where higher variations in
+     * bitrate are acceptable.
+     */
+    enum vpx_rc_mode       rc_end_usage;
+
+
+    /*!\brief Two-pass stats buffer.
+     *
+     * A buffer containing all of the stats packets produced in the first
+     * pass, concatenated.
+     */
+    vpx_fixed_buf_t   rc_twopass_stats_in;
+
+    /*!\brief first pass mb stats buffer.
+     *
+     * A buffer containing all of the first pass mb stats packets produced
+     * in the first pass, concatenated.
+     */
+    vpx_fixed_buf_t   rc_firstpass_mb_stats_in;
+
+    /*!\brief Target data rate
+     *
+     * Target bandwidth to use for this stream, in kilobits per second.
+     */
+    unsigned int           rc_target_bitrate;
+
+
+    /*
+     * quantizer settings
+     */
+
+
+    /*!\brief Minimum (Best Quality) Quantizer
+     *
+     * The quantizer is the most direct control over the quality of the
+     * encoded image. The range of valid values for the quantizer is codec
+     * specific. Consult the documentation for the codec to determine the
+     * values to use. To determine the range programmatically, call
+     * vpx_codec_enc_config_default() with a usage value of 0.
+     */
+    unsigned int           rc_min_quantizer;
+
+
+    /*!\brief Maximum (Worst Quality) Quantizer
+     *
+     * The quantizer is the most direct control over the quality of the
+     * encoded image. The range of valid values for the quantizer is codec
+     * specific. Consult the documentation for the codec to determine the
+     * values to use. To determine the range programmatically, call
+     * vpx_codec_enc_config_default() with a usage value of 0.
+     */
+    unsigned int           rc_max_quantizer;
+
+
+    /*
+     * bitrate tolerance
+     */
+
+
+    /*!\brief Rate control adaptation undershoot control
+     *
+     * This value, expressed as a percentage of the target bitrate,
+     * controls the maximum allowed adaptation speed of the codec.
+     * This factor controls the maximum amount of bits that can
+     * be subtracted from the target bitrate in order to compensate
+     * for prior overshoot.
+     *
+     * Valid values in the range 0-1000.
+     */
+    unsigned int           rc_undershoot_pct;
+
+
+    /*!\brief Rate control adaptation overshoot control
+     *
+     * This value, expressed as a percentage of the target bitrate,
+     * controls the maximum allowed adaptation speed of the codec.
+     * This factor controls the maximum amount of bits that can
+     * be added to the target bitrate in order to compensate for
+     * prior undershoot.
+     *
+     * Valid values in the range 0-1000.
+     */
+    unsigned int           rc_overshoot_pct;
+
+
+    /*
+     * decoder buffer model parameters
+     */
+
+
+    /*!\brief Decoder Buffer Size
+     *
+     * This value indicates the amount of data that may be buffered by the
+     * decoding application. Note that this value is expressed in units of
+     * time (milliseconds). For example, a value of 5000 indicates that the
+     * client will buffer (at least) 5000ms worth of encoded data. Use the
+     * target bitrate (#rc_target_bitrate) to convert to bits/bytes, if
+     * necessary.
+     */
+    unsigned int           rc_buf_sz;
+
+
+    /*!\brief Decoder Buffer Initial Size
+     *
+     * This value indicates the amount of data that will be buffered by the
+     * decoding application prior to beginning playback. This value is
+     * expressed in units of time (milliseconds). Use the target bitrate
+     * (#rc_target_bitrate) to convert to bits/bytes, if necessary.
+     */
+    unsigned int           rc_buf_initial_sz;
+
+
+    /*!\brief Decoder Buffer Optimal Size
+     *
+     * This value indicates the amount of data that the encoder should try
+     * to maintain in the decoder's buffer. This value is expressed in units
+     * of time (milliseconds). Use the target bitrate (#rc_target_bitrate)
+     * to convert to bits/bytes, if necessary.
+     */
+    unsigned int           rc_buf_optimal_sz;
+
+
+    /*
+     * 2 pass rate control parameters
+     */
+
+
+    /*!\brief Two-pass mode CBR/VBR bias
+     *
+     * Bias, expressed on a scale of 0 to 100, for determining target size
+     * for the current frame. The value 0 indicates the optimal CBR mode
+     * value should be used. The value 100 indicates the optimal VBR mode
+     * value should be used. Values in between indicate which way the
+     * encoder should "lean."
+     */
+    unsigned int           rc_2pass_vbr_bias_pct;       /**< RC mode bias between CBR and VBR(0-100: 0->CBR, 100->VBR)   */
+
+
+    /*!\brief Two-pass mode per-GOP minimum bitrate
+     *
+     * This value, expressed as a percentage of the target bitrate, indicates
+     * the minimum bitrate to be used for a single GOP (aka "section")
+     */
+    unsigned int           rc_2pass_vbr_minsection_pct;
+
+
+    /*!\brief Two-pass mode per-GOP maximum bitrate
+     *
+     * This value, expressed as a percentage of the target bitrate, indicates
+     * the maximum bitrate to be used for a single GOP (aka "section")
+     */
+    unsigned int           rc_2pass_vbr_maxsection_pct;
+
+
+    /*
+     * keyframing settings (kf)
+     */
+
+    /*!\brief Keyframe placement mode
+     *
+     * This value indicates whether the encoder should place keyframes at a
+     * fixed interval, or determine the optimal placement automatically
+     * (as governed by the #kf_min_dist and #kf_max_dist parameters)
+     */
+    enum vpx_kf_mode       kf_mode;
+
+
+    /*!\brief Keyframe minimum interval
+     *
+     * This value, expressed as a number of frames, prevents the encoder from
+     * placing a keyframe nearer than kf_min_dist to the previous keyframe. At
+     * least kf_min_dist frames non-keyframes will be coded before the next
+     * keyframe. Set kf_min_dist equal to kf_max_dist for a fixed interval.
+     */
+    unsigned int           kf_min_dist;
+
+
+    /*!\brief Keyframe maximum interval
+     *
+     * This value, expressed as a number of frames, forces the encoder to code
+     * a keyframe if one has not been coded in the last kf_max_dist frames.
+     * A value of 0 implies all frames will be keyframes. Set kf_min_dist
+     * equal to kf_max_dist for a fixed interval.
+     */
+    unsigned int           kf_max_dist;
+
+    /*
+     * Spatial scalability settings (ss)
+     */
+
+    /*!\brief Number of spatial coding layers.
+     *
+     * This value specifies the number of spatial coding layers to be used.
+     */
+    unsigned int           ss_number_layers;
+
+    /*!\brief Enable auto alt reference flags for each spatial layer.
+     *
+     * These values specify if auto alt reference frame is enabled for each
+     * spatial layer.
+     */
+    int                    ss_enable_auto_alt_ref[VPX_SS_MAX_LAYERS];
+
+    /*!\brief Target bitrate for each spatial layer.
+     *
+     * These values specify the target coding bitrate to be used for each
+     * spatial layer.
+     */
+    unsigned int           ss_target_bitrate[VPX_SS_MAX_LAYERS];
+
+    /*!\brief Number of temporal coding layers.
+     *
+     * This value specifies the number of temporal layers to be used.
+     */
+    unsigned int           ts_number_layers;
+
+    /*!\brief Target bitrate for each temporal layer.
+     *
+     * These values specify the target coding bitrate to be used for each
+     * temporal layer.
+     */
+    unsigned int           ts_target_bitrate[VPX_TS_MAX_LAYERS];
+
+    /*!\brief Frame rate decimation factor for each temporal layer.
+     *
+     * These values specify the frame rate decimation factors to apply
+     * to each temporal layer.
+     */
+    unsigned int           ts_rate_decimator[VPX_TS_MAX_LAYERS];
+
+    /*!\brief Length of the sequence defining frame temporal layer membership.
+     *
+     * This value specifies the length of the sequence that defines the
+     * membership of frames to temporal layers. For example, if the
+     * ts_periodicity = 8, then the frames are assigned to coding layers with a
+     * repeated sequence of length 8.
+    */
+    unsigned int           ts_periodicity;
+
+    /*!\brief Template defining the membership of frames to temporal layers.
+     *
+     * This array defines the membership of frames to temporal coding layers.
+     * For a 2-layer encoding that assigns even numbered frames to one temporal
+     * layer (0) and odd numbered frames to a second temporal layer (1) with
+     * ts_periodicity=8, then ts_layer_id = (0,1,0,1,0,1,0,1).
+    */
+    unsigned int           ts_layer_id[VPX_TS_MAX_PERIODICITY];
+
+    /*!\brief Target bitrate for each spatial/temporal layer.
+     *
+     * These values specify the target coding bitrate to be used for each
+     * spatial/temporal layer.
+     *
+     */
+    unsigned int           layer_target_bitrate[VPX_MAX_LAYERS];
+
+    /*!\brief Temporal layering mode indicating which temporal layering scheme to use.
+     *
+     * The value (refer to VP9E_TEMPORAL_LAYERING_MODE) specifies the
+     * temporal layering mode to use.
+     *
+     */
+    int                    temporal_layering_mode;
+  } vpx_codec_enc_cfg_t; /**< alias for struct vpx_codec_enc_cfg */
+
+  /*!\brief  vp9 svc extra configure parameters
+   *
+   * This defines max/min quantizers and scale factors for each layer
+   *
+   */
+  typedef struct vpx_svc_parameters {
+    int max_quantizers[VPX_MAX_LAYERS]; /**< Max Q for each layer */
+    int min_quantizers[VPX_MAX_LAYERS]; /**< Min Q for each layer */
+    int scaling_factor_num[VPX_MAX_LAYERS]; /**< Scaling factor-numerator */
+    int scaling_factor_den[VPX_MAX_LAYERS]; /**< Scaling factor-denominator */
+    int temporal_layering_mode; /**< Temporal layering mode */
+  } vpx_svc_extra_cfg_t;
+
+
+  /*!\brief Initialize an encoder instance
+   *
+   * Initializes a encoder context using the given interface. Applications
+   * should call the vpx_codec_enc_init convenience macro instead of this
+   * function directly, to ensure that the ABI version number parameter
+   * is properly initialized.
+   *
+   * If the library was configured with --disable-multithread, this call
+   * is not thread safe and should be guarded with a lock if being used
+   * in a multithreaded context.
+   *
+   * \param[in]    ctx     Pointer to this instance's context.
+   * \param[in]    iface   Pointer to the algorithm interface to use.
+   * \param[in]    cfg     Configuration to use, if known. May be NULL.
+   * \param[in]    flags   Bitfield of VPX_CODEC_USE_* flags
+   * \param[in]    ver     ABI version number. Must be set to
+   *                       VPX_ENCODER_ABI_VERSION
+   * \retval #VPX_CODEC_OK
+   *     The decoder algorithm initialized.
+   * \retval #VPX_CODEC_MEM_ERROR
+   *     Memory allocation failed.
+   */
+  vpx_codec_err_t vpx_codec_enc_init_ver(vpx_codec_ctx_t      *ctx,
+                                         vpx_codec_iface_t    *iface,
+                                         const vpx_codec_enc_cfg_t *cfg,
+                                         vpx_codec_flags_t     flags,
+                                         int                   ver);
+
+
+  /*!\brief Convenience macro for vpx_codec_enc_init_ver()
+   *
+   * Ensures the ABI version parameter is properly set.
+   */
+#define vpx_codec_enc_init(ctx, iface, cfg, flags) \
+  vpx_codec_enc_init_ver(ctx, iface, cfg, flags, VPX_ENCODER_ABI_VERSION)
+
+
+  /*!\brief Initialize multi-encoder instance
+   *
+   * Initializes multi-encoder context using the given interface.
+   * Applications should call the vpx_codec_enc_init_multi convenience macro
+   * instead of this function directly, to ensure that the ABI version number
+   * parameter is properly initialized.
+   *
+   * \param[in]    ctx     Pointer to this instance's context.
+   * \param[in]    iface   Pointer to the algorithm interface to use.
+   * \param[in]    cfg     Configuration to use, if known. May be NULL.
+   * \param[in]    num_enc Total number of encoders.
+   * \param[in]    flags   Bitfield of VPX_CODEC_USE_* flags
+   * \param[in]    dsf     Pointer to down-sampling factors.
+   * \param[in]    ver     ABI version number. Must be set to
+   *                       VPX_ENCODER_ABI_VERSION
+   * \retval #VPX_CODEC_OK
+   *     The decoder algorithm initialized.
+   * \retval #VPX_CODEC_MEM_ERROR
+   *     Memory allocation failed.
+   */
+  vpx_codec_err_t vpx_codec_enc_init_multi_ver(vpx_codec_ctx_t      *ctx,
+                                               vpx_codec_iface_t    *iface,
+                                               vpx_codec_enc_cfg_t  *cfg,
+                                               int                   num_enc,
+                                               vpx_codec_flags_t     flags,
+                                               vpx_rational_t       *dsf,
+                                               int                   ver);
+
+
+  /*!\brief Convenience macro for vpx_codec_enc_init_multi_ver()
+   *
+   * Ensures the ABI version parameter is properly set.
+   */
+#define vpx_codec_enc_init_multi(ctx, iface, cfg, num_enc, flags, dsf) \
+  vpx_codec_enc_init_multi_ver(ctx, iface, cfg, num_enc, flags, dsf, \
+                               VPX_ENCODER_ABI_VERSION)
+
+
+  /*!\brief Get a default configuration
+   *
+   * Initializes a encoder configuration structure with default values. Supports
+   * the notion of "usages" so that an algorithm may offer different default
+   * settings depending on the user's intended goal. This function \ref SHOULD
+   * be called by all applications to initialize the configuration structure
+   * before specializing the configuration with application specific values.
+   *
+   * \param[in]    iface     Pointer to the algorithm interface to use.
+   * \param[out]   cfg       Configuration buffer to populate.
+   * \param[in]    reserved  Must set to 0 for VP8 and VP9.
+   *
+   * \retval #VPX_CODEC_OK
+   *     The configuration was populated.
+   * \retval #VPX_CODEC_INCAPABLE
+   *     Interface is not an encoder interface.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     A parameter was NULL, or the usage value was not recognized.
+   */
+  vpx_codec_err_t  vpx_codec_enc_config_default(vpx_codec_iface_t    *iface,
+                                                vpx_codec_enc_cfg_t  *cfg,
+                                                unsigned int          reserved);
+
+
+  /*!\brief Set or change configuration
+   *
+   * Reconfigures an encoder instance according to the given configuration.
+   *
+   * \param[in]    ctx     Pointer to this instance's context
+   * \param[in]    cfg     Configuration buffer to use
+   *
+   * \retval #VPX_CODEC_OK
+   *     The configuration was populated.
+   * \retval #VPX_CODEC_INCAPABLE
+   *     Interface is not an encoder interface.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     A parameter was NULL, or the usage value was not recognized.
+   */
+  vpx_codec_err_t  vpx_codec_enc_config_set(vpx_codec_ctx_t            *ctx,
+                                            const vpx_codec_enc_cfg_t  *cfg);
+
+
+  /*!\brief Get global stream headers
+   *
+   * Retrieves a stream level global header packet, if supported by the codec.
+   *
+   * \param[in]    ctx     Pointer to this instance's context
+   *
+   * \retval NULL
+   *     Encoder does not support global header
+   * \retval Non-NULL
+   *     Pointer to buffer containing global header packet
+   */
+  vpx_fixed_buf_t *vpx_codec_get_global_headers(vpx_codec_ctx_t   *ctx);
+
+
+#define VPX_DL_REALTIME     (1)        /**< deadline parameter analogous to
+  *   VPx REALTIME mode. */
+#define VPX_DL_GOOD_QUALITY (1000000)  /**< deadline parameter analogous to
+  *   VPx GOOD QUALITY mode. */
+#define VPX_DL_BEST_QUALITY (0)        /**< deadline parameter analogous to
+  *   VPx BEST QUALITY mode. */
+  /*!\brief Encode a frame
+   *
+   * Encodes a video frame at the given "presentation time." The presentation
+   * time stamp (PTS) \ref MUST be strictly increasing.
+   *
+   * The encoder supports the notion of a soft real-time deadline. Given a
+   * non-zero value to the deadline parameter, the encoder will make a "best
+   * effort" guarantee to  return before the given time slice expires. It is
+   * implicit that limiting the available time to encode will degrade the
+   * output quality. The encoder can be given an unlimited time to produce the
+   * best possible frame by specifying a deadline of '0'. This deadline
+   * supercedes the VPx notion of "best quality, good quality, realtime".
+   * Applications that wish to map these former settings to the new deadline
+   * based system can use the symbols #VPX_DL_REALTIME, #VPX_DL_GOOD_QUALITY,
+   * and #VPX_DL_BEST_QUALITY.
+   *
+   * When the last frame has been passed to the encoder, this function should
+   * continue to be called, with the img parameter set to NULL. This will
+   * signal the end-of-stream condition to the encoder and allow it to encode
+   * any held buffers. Encoding is complete when vpx_codec_encode() is called
+   * and vpx_codec_get_cx_data() returns no data.
+   *
+   * \param[in]    ctx       Pointer to this instance's context
+   * \param[in]    img       Image data to encode, NULL to flush.
+   * \param[in]    pts       Presentation time stamp, in timebase units.
+   * \param[in]    duration  Duration to show frame, in timebase units.
+   * \param[in]    flags     Flags to use for encoding this frame.
+   * \param[in]    deadline  Time to spend encoding, in microseconds. (0=infinite)
+   *
+   * \retval #VPX_CODEC_OK
+   *     The configuration was populated.
+   * \retval #VPX_CODEC_INCAPABLE
+   *     Interface is not an encoder interface.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     A parameter was NULL, the image format is unsupported, etc.
+   */
+  vpx_codec_err_t  vpx_codec_encode(vpx_codec_ctx_t            *ctx,
+                                    const vpx_image_t          *img,
+                                    vpx_codec_pts_t             pts,
+                                    unsigned long               duration,
+                                    vpx_enc_frame_flags_t       flags,
+                                    unsigned long               deadline);
+
+  /*!\brief Set compressed data output buffer
+   *
+   * Sets the buffer that the codec should output the compressed data
+   * into. This call effectively sets the buffer pointer returned in the
+   * next VPX_CODEC_CX_FRAME_PKT packet. Subsequent packets will be
+   * appended into this buffer. The buffer is preserved across frames,
+   * so applications must periodically call this function after flushing
+   * the accumulated compressed data to disk or to the network to reset
+   * the pointer to the buffer's head.
+   *
+   * `pad_before` bytes will be skipped before writing the compressed
+   * data, and `pad_after` bytes will be appended to the packet. The size
+   * of the packet will be the sum of the size of the actual compressed
+   * data, pad_before, and pad_after. The padding bytes will be preserved
+   * (not overwritten).
+   *
+   * Note that calling this function does not guarantee that the returned
+   * compressed data will be placed into the specified buffer. In the
+   * event that the encoded data will not fit into the buffer provided,
+   * the returned packet \ref MAY point to an internal buffer, as it would
+   * if this call were never used. In this event, the output packet will
+   * NOT have any padding, and the application must free space and copy it
+   * to the proper place. This is of particular note in configurations
+   * that may output multiple packets for a single encoded frame (e.g., lagged
+   * encoding) or if the application does not reset the buffer periodically.
+   *
+   * Applications may restore the default behavior of the codec providing
+   * the compressed data buffer by calling this function with a NULL
+   * buffer.
+   *
+   * Applications \ref MUSTNOT call this function during iteration of
+   * vpx_codec_get_cx_data().
+   *
+   * \param[in]    ctx         Pointer to this instance's context
+   * \param[in]    buf         Buffer to store compressed data into
+   * \param[in]    pad_before  Bytes to skip before writing compressed data
+   * \param[in]    pad_after   Bytes to skip after writing compressed data
+   *
+   * \retval #VPX_CODEC_OK
+   *     The buffer was set successfully.
+   * \retval #VPX_CODEC_INVALID_PARAM
+   *     A parameter was NULL, the image format is unsupported, etc.
+   */
+  vpx_codec_err_t vpx_codec_set_cx_data_buf(vpx_codec_ctx_t       *ctx,
+                                            const vpx_fixed_buf_t *buf,
+                                            unsigned int           pad_before,
+                                            unsigned int           pad_after);
+
+
+  /*!\brief Encoded data iterator
+   *
+   * Iterates over a list of data packets to be passed from the encoder to the
+   * application. The different kinds of packets available are enumerated in
+   * #vpx_codec_cx_pkt_kind.
+   *
+   * #VPX_CODEC_CX_FRAME_PKT packets should be passed to the application's
+   * muxer. Multiple compressed frames may be in the list.
+   * #VPX_CODEC_STATS_PKT packets should be appended to a global buffer.
+   *
+   * The application \ref MUST silently ignore any packet kinds that it does
+   * not recognize or support.
+   *
+   * The data buffers returned from this function are only guaranteed to be
+   * valid until the application makes another call to any vpx_codec_* function.
+   *
+   * \param[in]     ctx      Pointer to this instance's context
+   * \param[in,out] iter     Iterator storage, initialized to NULL
+   *
+   * \return Returns a pointer to an output data packet (compressed frame data,
+   *         two-pass statistics, etc.) or NULL to signal end-of-list.
+   *
+   */
+  const vpx_codec_cx_pkt_t *vpx_codec_get_cx_data(vpx_codec_ctx_t   *ctx,
+                                                  vpx_codec_iter_t  *iter);
+
+
+  /*!\brief Get Preview Frame
+   *
+   * Returns an image that can be used as a preview. Shows the image as it would
+   * exist at the decompressor. The application \ref MUST NOT write into this
+   * image buffer.
+   *
+   * \param[in]     ctx      Pointer to this instance's context
+   *
+   * \return Returns a pointer to a preview image, or NULL if no image is
+   *         available.
+   *
+   */
+  const vpx_image_t *vpx_codec_get_preview_frame(vpx_codec_ctx_t   *ctx);
+
+
+  /*!@} - end defgroup encoder*/
+#ifdef __cplusplus
+}
+#endif
+#endif  // VPX_VPX_ENCODER_H_
+
diff --git a/media/libvpx/vpx/vpx_frame_buffer.h b/media/libvpx/vpx/vpx_frame_buffer.h
new file mode 100644
index 000000000..9036459af
--- /dev/null
+++ b/media/libvpx/vpx/vpx_frame_buffer.h
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VPX_VPX_FRAME_BUFFER_H_
+#define VPX_VPX_FRAME_BUFFER_H_
+
+/*!\file
+ * \brief Describes the decoder external frame buffer interface.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "./vpx_integer.h"
+
+/*!\brief The maximum number of work buffers used by libvpx.
+ *  Support maximum 4 threads to decode video in parallel.
+ *  Each thread will use one work buffer.
+ * TODO(hkuang): Add support to set number of worker threads dynamically.
+ */
+#define VPX_MAXIMUM_WORK_BUFFERS 8
+
+/*!\brief The maximum number of reference buffers that a VP9 encoder may use.
+ */
+#define VP9_MAXIMUM_REF_BUFFERS 8
+
+/*!\brief External frame buffer
+ *
+ * This structure holds allocated frame buffers used by the decoder.
+ */
+typedef struct vpx_codec_frame_buffer {
+  uint8_t *data;  /**< Pointer to the data buffer */
+  size_t size;  /**< Size of data in bytes */
+  void *priv;  /**< Frame's private data */
+} vpx_codec_frame_buffer_t;
+
+/*!\brief get frame buffer callback prototype
+ *
+ * This callback is invoked by the decoder to retrieve data for the frame
+ * buffer in order for the decode call to complete. The callback must
+ * allocate at least min_size in bytes and assign it to fb->data. The callback
+ * must zero out all the data allocated. Then the callback must set fb->size
+ * to the allocated size. The application does not need to align the allocated
+ * data. The callback is triggered when the decoder needs a frame buffer to
+ * decode a compressed image into. This function may be called more than once
+ * for every call to vpx_codec_decode. The application may set fb->priv to
+ * some data which will be passed back in the ximage and the release function
+ * call. |fb| is guaranteed to not be NULL. On success the callback must
+ * return 0. Any failure the callback must return a value less than 0.
+ *
+ * \param[in] priv         Callback's private data
+ * \param[in] new_size     Size in bytes needed by the buffer
+ * \param[in,out] fb       Pointer to vpx_codec_frame_buffer_t
+ */
+typedef int (*vpx_get_frame_buffer_cb_fn_t)(
+    void *priv, size_t min_size, vpx_codec_frame_buffer_t *fb);
+
+/*!\brief release frame buffer callback prototype
+ *
+ * This callback is invoked by the decoder when the frame buffer is not
+ * referenced by any other buffers. |fb| is guaranteed to not be NULL. On
+ * success the callback must return 0. Any failure the callback must return
+ * a value less than 0.
+ *
+ * \param[in] priv         Callback's private data
+ * \param[in] fb           Pointer to vpx_codec_frame_buffer_t
+ */
+typedef int (*vpx_release_frame_buffer_cb_fn_t)(
+    void *priv, vpx_codec_frame_buffer_t *fb);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VPX_FRAME_BUFFER_H_
diff --git a/media/libvpx/vpx/vpx_image.h b/media/libvpx/vpx/vpx_image.h
new file mode 100644
index 000000000..c06d35101
--- /dev/null
+++ b/media/libvpx/vpx/vpx_image.h
@@ -0,0 +1,224 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/*!\file
+ * \brief Describes the vpx image descriptor and associated operations
+ *
+ */
+#ifndef VPX_VPX_IMAGE_H_
+#define VPX_VPX_IMAGE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  /*!\brief Current ABI version number
+   *
+   * \internal
+   * If this file is altered in any way that changes the ABI, this value
+   * must be bumped.  Examples include, but are not limited to, changing
+   * types, removing or reassigning enums, adding/removing/rearranging
+   * fields to structures
+   */
+#define VPX_IMAGE_ABI_VERSION (3) /**<\hideinitializer*/
+
+
+#define VPX_IMG_FMT_PLANAR     0x100  /**< Image is a planar format. */
+#define VPX_IMG_FMT_UV_FLIP    0x200  /**< V plane precedes U in memory. */
+#define VPX_IMG_FMT_HAS_ALPHA  0x400  /**< Image has an alpha channel. */
+#define VPX_IMG_FMT_HIGHBITDEPTH 0x800  /**< Image uses 16bit framebuffer. */
+
+  /*!\brief List of supported image formats */
+  typedef enum vpx_img_fmt {
+    VPX_IMG_FMT_NONE,
+    VPX_IMG_FMT_RGB24,   /**< 24 bit per pixel packed RGB */
+    VPX_IMG_FMT_RGB32,   /**< 32 bit per pixel packed 0RGB */
+    VPX_IMG_FMT_RGB565,  /**< 16 bit per pixel, 565 */
+    VPX_IMG_FMT_RGB555,  /**< 16 bit per pixel, 555 */
+    VPX_IMG_FMT_UYVY,    /**< UYVY packed YUV */
+    VPX_IMG_FMT_YUY2,    /**< YUYV packed YUV */
+    VPX_IMG_FMT_YVYU,    /**< YVYU packed YUV */
+    VPX_IMG_FMT_BGR24,   /**< 24 bit per pixel packed BGR */
+    VPX_IMG_FMT_RGB32_LE, /**< 32 bit packed BGR0 */
+    VPX_IMG_FMT_ARGB,     /**< 32 bit packed ARGB, alpha=255 */
+    VPX_IMG_FMT_ARGB_LE,  /**< 32 bit packed BGRA, alpha=255 */
+    VPX_IMG_FMT_RGB565_LE,  /**< 16 bit per pixel, gggbbbbb rrrrrggg */
+    VPX_IMG_FMT_RGB555_LE,  /**< 16 bit per pixel, gggbbbbb 0rrrrrgg */
+    VPX_IMG_FMT_YV12    = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 1, /**< planar YVU */
+    VPX_IMG_FMT_I420    = VPX_IMG_FMT_PLANAR | 2,
+    VPX_IMG_FMT_VPXYV12 = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 3, /** < planar 4:2:0 format with vpx color space */
+    VPX_IMG_FMT_VPXI420 = VPX_IMG_FMT_PLANAR | 4,
+    VPX_IMG_FMT_I422    = VPX_IMG_FMT_PLANAR | 5,
+    VPX_IMG_FMT_I444    = VPX_IMG_FMT_PLANAR | 6,
+    VPX_IMG_FMT_I440    = VPX_IMG_FMT_PLANAR | 7,
+    VPX_IMG_FMT_444A    = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_HAS_ALPHA | 6,
+    VPX_IMG_FMT_I42016    = VPX_IMG_FMT_I420 | VPX_IMG_FMT_HIGHBITDEPTH,
+    VPX_IMG_FMT_I42216    = VPX_IMG_FMT_I422 | VPX_IMG_FMT_HIGHBITDEPTH,
+    VPX_IMG_FMT_I44416    = VPX_IMG_FMT_I444 | VPX_IMG_FMT_HIGHBITDEPTH,
+    VPX_IMG_FMT_I44016    = VPX_IMG_FMT_I440 | VPX_IMG_FMT_HIGHBITDEPTH
+  } vpx_img_fmt_t; /**< alias for enum vpx_img_fmt */
+
+  /*!\brief List of supported color spaces */
+  typedef enum vpx_color_space {
+    VPX_CS_UNKNOWN    = 0,  /**< Unknown */
+    VPX_CS_BT_601     = 1,  /**< BT.601 */
+    VPX_CS_BT_709     = 2,  /**< BT.709 */
+    VPX_CS_SMPTE_170  = 3,  /**< SMPTE.170 */
+    VPX_CS_SMPTE_240  = 4,  /**< SMPTE.240 */
+    VPX_CS_BT_2020    = 5,  /**< BT.2020 */
+    VPX_CS_RESERVED   = 6,  /**< Reserved */
+    VPX_CS_SRGB       = 7   /**< sRGB */
+  } vpx_color_space_t; /**< alias for enum vpx_color_space */
+
+  /**\brief Image Descriptor */
+  typedef struct vpx_image {
+    vpx_img_fmt_t fmt; /**< Image Format */
+    vpx_color_space_t cs; /**< Color Space */
+
+    /* Image storage dimensions */
+    unsigned int  w;           /**< Stored image width */
+    unsigned int  h;           /**< Stored image height */
+    unsigned int  bit_depth;   /**< Stored image bit-depth */
+
+    /* Image display dimensions */
+    unsigned int  d_w;   /**< Displayed image width */
+    unsigned int  d_h;   /**< Displayed image height */
+
+    /* Chroma subsampling info */
+    unsigned int  x_chroma_shift;   /**< subsampling order, X */
+    unsigned int  y_chroma_shift;   /**< subsampling order, Y */
+
+    /* Image data pointers. */
+#define VPX_PLANE_PACKED 0   /**< To be used for all packed formats */
+#define VPX_PLANE_Y      0   /**< Y (Luminance) plane */
+#define VPX_PLANE_U      1   /**< U (Chroma) plane */
+#define VPX_PLANE_V      2   /**< V (Chroma) plane */
+#define VPX_PLANE_ALPHA  3   /**< A (Transparency) plane */
+    unsigned char *planes[4];  /**< pointer to the top left pixel for each plane */
+    int      stride[4];  /**< stride between rows for each plane */
+
+    int     bps; /**< bits per sample (for packed formats) */
+
+    /* The following member may be set by the application to associate data
+     * with this image.
+     */
+    void    *user_priv; /**< may be set by the application to associate data
+                         *   with this image. */
+
+    /* The following members should be treated as private. */
+    unsigned char *img_data;       /**< private */
+    int      img_data_owner; /**< private */
+    int      self_allocd;    /**< private */
+
+    void    *fb_priv; /**< Frame buffer data associated with the image. */
+  } vpx_image_t; /**< alias for struct vpx_image */
+
+  /**\brief Representation of a rectangle on a surface */
+  typedef struct vpx_image_rect {
+    unsigned int x; /**< leftmost column */
+    unsigned int y; /**< topmost row */
+    unsigned int w; /**< width */
+    unsigned int h; /**< height */
+  } vpx_image_rect_t; /**< alias for struct vpx_image_rect */
+
+  /*!\brief Open a descriptor, allocating storage for the underlying image
+   *
+   * Returns a descriptor for storing an image of the given format. The
+   * storage for the descriptor is allocated on the heap.
+   *
+   * \param[in]    img       Pointer to storage for descriptor. If this parameter
+   *                         is NULL, the storage for the descriptor will be
+   *                         allocated on the heap.
+   * \param[in]    fmt       Format for the image
+   * \param[in]    d_w       Width of the image
+   * \param[in]    d_h       Height of the image
+   * \param[in]    align     Alignment, in bytes, of the image buffer and
+   *                         each row in the image(stride).
+   *
+   * \return Returns a pointer to the initialized image descriptor. If the img
+   *         parameter is non-null, the value of the img parameter will be
+   *         returned.
+   */
+  vpx_image_t *vpx_img_alloc(vpx_image_t  *img,
+                             vpx_img_fmt_t fmt,
+                             unsigned int d_w,
+                             unsigned int d_h,
+                             unsigned int align);
+
+  /*!\brief Open a descriptor, using existing storage for the underlying image
+   *
+   * Returns a descriptor for storing an image of the given format. The
+   * storage for descriptor has been allocated elsewhere, and a descriptor is
+   * desired to "wrap" that storage.
+   *
+   * \param[in]    img       Pointer to storage for descriptor. If this parameter
+   *                         is NULL, the storage for the descriptor will be
+   *                         allocated on the heap.
+   * \param[in]    fmt       Format for the image
+   * \param[in]    d_w       Width of the image
+   * \param[in]    d_h       Height of the image
+   * \param[in]    align     Alignment, in bytes, of each row in the image.
+   * \param[in]    img_data  Storage to use for the image
+   *
+   * \return Returns a pointer to the initialized image descriptor. If the img
+   *         parameter is non-null, the value of the img parameter will be
+   *         returned.
+   */
+  vpx_image_t *vpx_img_wrap(vpx_image_t  *img,
+                            vpx_img_fmt_t fmt,
+                            unsigned int d_w,
+                            unsigned int d_h,
+                            unsigned int align,
+                            unsigned char      *img_data);
+
+
+  /*!\brief Set the rectangle identifying the displayed portion of the image
+   *
+   * Updates the displayed rectangle (aka viewport) on the image surface to
+   * match the specified coordinates and size.
+   *
+   * \param[in]    img       Image descriptor
+   * \param[in]    x         leftmost column
+   * \param[in]    y         topmost row
+   * \param[in]    w         width
+   * \param[in]    h         height
+   *
+   * \return 0 if the requested rectangle is valid, nonzero otherwise.
+   */
+  int vpx_img_set_rect(vpx_image_t  *img,
+                       unsigned int  x,
+                       unsigned int  y,
+                       unsigned int  w,
+                       unsigned int  h);
+
+
+  /*!\brief Flip the image vertically (top for bottom)
+   *
+   * Adjusts the image descriptor's pointers and strides to make the image
+   * be referenced upside-down.
+   *
+   * \param[in]    img       Image descriptor
+   */
+  void vpx_img_flip(vpx_image_t *img);
+
+  /*!\brief Close an image descriptor
+   *
+   * Frees all allocated storage associated with an image descriptor.
+   *
+   * \param[in]    img       Image descriptor
+   */
+  void vpx_img_free(vpx_image_t *img);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VPX_IMAGE_H_
diff --git a/media/libvpx/vpx/vpx_integer.h b/media/libvpx/vpx/vpx_integer.h
new file mode 100644
index 000000000..86829a8ce
--- /dev/null
+++ b/media/libvpx/vpx/vpx_integer.h
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VPX_VPX_INTEGER_H_
+#define VPX_VPX_INTEGER_H_
+
+/* get ptrdiff_t, size_t, wchar_t, NULL */
+#include <stddef.h>
+
+#if defined(_MSC_VER)
+#define VPX_FORCE_INLINE __forceinline
+#define VPX_INLINE __inline
+#else
+#define VPX_FORCE_INLINE __inline__ __attribute__(always_inline)
+// TODO(jbb): Allow a way to force inline off for older compilers.
+#define VPX_INLINE inline
+#endif
+
+#if !defined(VPX_DONT_DEFINE_STDINT_TYPES)
+
+#if (defined(_MSC_VER) && (_MSC_VER < 1600)) || defined(VPX_EMULATE_INTTYPES)
+typedef signed char  int8_t;
+typedef signed short int16_t;
+typedef signed int   int32_t;
+
+typedef unsigned char  uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int   uint32_t;
+
+#if (defined(_MSC_VER) && (_MSC_VER < 1600))
+typedef signed __int64   int64_t;
+typedef unsigned __int64 uint64_t;
+#define INT64_MAX _I64_MAX
+#define INT32_MAX _I32_MAX
+#define INT32_MIN _I32_MIN
+#define INT16_MAX _I16_MAX
+#define INT16_MIN _I16_MIN
+#endif
+
+#ifndef _UINTPTR_T_DEFINED
+typedef size_t uintptr_t;
+#endif
+
+#else
+
+/* Most platforms have the C99 standard integer types. */
+
+#if defined(__cplusplus)
+# if !defined(__STDC_FORMAT_MACROS)
+#  define __STDC_FORMAT_MACROS
+# endif
+# if !defined(__STDC_LIMIT_MACROS)
+#  define __STDC_LIMIT_MACROS
+# endif
+#endif  // __cplusplus
+
+#include <stdint.h>
+
+#endif
+
+#endif // VPX_DONT_DEFINE_STDINT_TYPES
+
+/* VS2010 defines stdint.h, but not inttypes.h */
+#if defined(_MSC_VER) && _MSC_VER < 1800
+#define PRId64 "I64d"
+#else
+#include <inttypes.h>
+#endif
+
+#endif  // VPX_VPX_INTEGER_H_