Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 168 insertions, 0 deletions

diff --git a/third_party/aom/tools_common.h b/third_party/aom/tools_common.h
new file mode 100644
index 000000000..8acb3709f
--- /dev/null
+++ b/third_party/aom/tools_common.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+#ifndef TOOLS_COMMON_H_
+#define TOOLS_COMMON_H_
+
+#include <stdio.h>
+
+#include "./aom_config.h"
+#include "aom/aom_codec.h"
+#include "aom/aom_image.h"
+#include "aom/aom_integer.h"
+#include "aom_ports/msvc.h"
+
+#if CONFIG_ENCODERS
+#include "./y4minput.h"
+#endif
+
+#if defined(_MSC_VER)
+/* MSVS uses _f{seek,tell}i64. */
+#define fseeko _fseeki64
+#define ftello _ftelli64
+typedef int64_t FileOffset;
+#elif defined(_WIN32)
+#include <sys/types.h> /* NOLINT*/
+/* MinGW uses f{seek,tell}o64 for large files. */
+#define fseeko fseeko64
+#define ftello ftello64
+typedef off64_t FileOffset;
+#elif CONFIG_OS_SUPPORT
+#include <sys/types.h> /* NOLINT*/
+typedef off_t FileOffset;
+/* Use 32-bit file operations in WebM file format when building ARM
+ * executables (.axf) with RVCT. */
+#else
+#define fseeko fseek
+#define ftello ftell
+typedef long FileOffset; /* NOLINT */
+#endif /* CONFIG_OS_SUPPORT */
+
+#if CONFIG_OS_SUPPORT
+#if defined(_MSC_VER)
+#include <io.h> /* NOLINT */
+#define isatty _isatty
+#define fileno _fileno
+#else
+#include <unistd.h> /* NOLINT */
+#endif              /* _MSC_VER */
+#endif              /* CONFIG_OS_SUPPORT */
+
+#define LITERALU64(hi, lo) ((((uint64_t)hi) << 32) | lo)
+
+#ifndef PATH_MAX
+#define PATH_MAX 512
+#endif
+
+#define IVF_FRAME_HDR_SZ (4 + 8) /* 4 byte size + 8 byte timestamp */
+#define IVF_FILE_HDR_SZ 32
+
+#define RAW_FRAME_HDR_SZ sizeof(uint32_t)
+
+#define AV1_FOURCC 0x31305641
+
+enum VideoFileType {
+  FILE_TYPE_RAW,
+  FILE_TYPE_IVF,
+  FILE_TYPE_Y4M,
+  FILE_TYPE_WEBM
+};
+
+struct FileTypeDetectionBuffer {
+  char buf[4];
+  size_t buf_read;
+  size_t position;
+};
+
+struct AvxRational {
+  int numerator;
+  int denominator;
+};
+
+struct AvxInputContext {
+  const char *filename;
+  FILE *file;
+  int64_t length;
+  struct FileTypeDetectionBuffer detect;
+  enum VideoFileType file_type;
+  uint32_t width;
+  uint32_t height;
+  struct AvxRational pixel_aspect_ratio;
+  aom_img_fmt_t fmt;
+  aom_bit_depth_t bit_depth;
+  int only_i420;
+  uint32_t fourcc;
+  struct AvxRational framerate;
+#if CONFIG_ENCODERS
+  y4m_input y4m;
+#endif
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__)
+#define AOM_NO_RETURN __attribute__((noreturn))
+#else
+#define AOM_NO_RETURN
+#endif
+
+/* Sets a stdio stream into binary mode */
+FILE *set_binary_mode(FILE *stream);
+
+void die(const char *fmt, ...) AOM_NO_RETURN;
+void fatal(const char *fmt, ...) AOM_NO_RETURN;
+void warn(const char *fmt, ...);
+
+void die_codec(aom_codec_ctx_t *ctx, const char *s) AOM_NO_RETURN;
+
+/* The tool including this file must define usage_exit() */
+void usage_exit(void) AOM_NO_RETURN;
+
+#undef AOM_NO_RETURN
+
+int read_yuv_frame(struct AvxInputContext *input_ctx, aom_image_t *yuv_frame);
+
+typedef struct AvxInterface {
+  const char *const name;
+  const uint32_t fourcc;
+  aom_codec_iface_t *(*const codec_interface)();
+} AvxInterface;
+
+int get_aom_encoder_count(void);
+const AvxInterface *get_aom_encoder_by_index(int i);
+const AvxInterface *get_aom_encoder_by_name(const char *name);
+
+int get_aom_decoder_count(void);
+const AvxInterface *get_aom_decoder_by_index(int i);
+const AvxInterface *get_aom_decoder_by_name(const char *name);
+const AvxInterface *get_aom_decoder_by_fourcc(uint32_t fourcc);
+
+// TODO(dkovalev): move this function to aom_image.{c, h}, so it will be part
+// of aom_image_t support
+int aom_img_plane_width(const aom_image_t *img, int plane);
+int aom_img_plane_height(const aom_image_t *img, int plane);
+void aom_img_write(const aom_image_t *img, FILE *file);
+int aom_img_read(aom_image_t *img, FILE *file);
+
+double sse_to_psnr(double samples, double peak, double mse);
+
+#if CONFIG_HIGHBITDEPTH
+void aom_img_upshift(aom_image_t *dst, aom_image_t *src, int input_shift);
+void aom_img_downshift(aom_image_t *dst, aom_image_t *src, int down_shift);
+void aom_img_truncate_16_to_8(aom_image_t *dst, aom_image_t *src);
+#endif
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif  // TOOLS_COMMON_H_