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, 1223 insertions, 0 deletions

diff --git a/third_party/aom/av1/av1_dx_iface.c b/third_party/aom/av1/av1_dx_iface.c
new file mode 100644
index 000000000..f20ea4815
--- /dev/null
+++ b/third_party/aom/av1/av1_dx_iface.c
@@ -0,0 +1,1223 @@
+/*
+ * 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.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "./aom_config.h"
+#include "./aom_version.h"
+
+#include "aom/internal/aom_codec_internal.h"
+#include "aom/aomdx.h"
+#include "aom/aom_decoder.h"
+#include "aom_dsp/bitreader_buffer.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_util/aom_thread.h"
+
+#include "av1/common/alloccommon.h"
+#include "av1/common/frame_buffers.h"
+#include "av1/common/enums.h"
+
+#include "av1/decoder/decoder.h"
+#include "av1/decoder/decodeframe.h"
+
+#include "av1/av1_iface_common.h"
+
+typedef aom_codec_stream_info_t av1_stream_info_t;
+
+// This limit is due to framebuffer numbers.
+// TODO(hkuang): Remove this limit after implementing ondemand framebuffers.
+#define FRAME_CACHE_SIZE 6  // Cache maximum 6 decoded frames.
+
+typedef struct cache_frame {
+  int fb_idx;
+  aom_image_t img;
+} cache_frame;
+
+struct aom_codec_alg_priv {
+  aom_codec_priv_t base;
+  aom_codec_dec_cfg_t cfg;
+  av1_stream_info_t si;
+  int postproc_cfg_set;
+  aom_postproc_cfg_t postproc_cfg;
+  aom_decrypt_cb decrypt_cb;
+  void *decrypt_state;
+  aom_image_t img;
+  int img_avail;
+  int flushed;
+  int invert_tile_order;
+  int last_show_frame;  // Index of last output frame.
+  int byte_alignment;
+  int skip_loop_filter;
+  int decode_tile_row;
+  int decode_tile_col;
+
+  // Frame parallel related.
+  int frame_parallel_decode;  // frame-based threading.
+  AVxWorker *frame_workers;
+  int num_frame_workers;
+  int next_submit_worker_id;
+  int last_submit_worker_id;
+  int next_output_worker_id;
+  int available_threads;
+  cache_frame frame_cache[FRAME_CACHE_SIZE];
+  int frame_cache_write;
+  int frame_cache_read;
+  int num_cache_frames;
+  int need_resync;  // wait for key/intra-only frame
+  // BufferPool that holds all reference frames. Shared by all the FrameWorkers.
+  BufferPool *buffer_pool;
+
+  // External frame buffer info to save for AV1 common.
+  void *ext_priv;  // Private data associated with the external frame buffers.
+  aom_get_frame_buffer_cb_fn_t get_ext_fb_cb;
+  aom_release_frame_buffer_cb_fn_t release_ext_fb_cb;
+
+#if CONFIG_INSPECTION
+  aom_inspect_cb inspect_cb;
+  void *inspect_ctx;
+#endif
+};
+
+static aom_codec_err_t decoder_init(aom_codec_ctx_t *ctx,
+                                    aom_codec_priv_enc_mr_cfg_t *data) {
+  // This function only allocates space for the aom_codec_alg_priv_t
+  // structure. More memory may be required at the time the stream
+  // information becomes known.
+  (void)data;
+
+  if (!ctx->priv) {
+    aom_codec_alg_priv_t *const priv =
+        (aom_codec_alg_priv_t *)aom_calloc(1, sizeof(*priv));
+    if (priv == NULL) return AOM_CODEC_MEM_ERROR;
+
+    ctx->priv = (aom_codec_priv_t *)priv;
+    ctx->priv->init_flags = ctx->init_flags;
+    priv->si.sz = sizeof(priv->si);
+    priv->flushed = 0;
+    // Only do frame parallel decode when threads > 1.
+    priv->frame_parallel_decode =
+        (ctx->config.dec && (ctx->config.dec->threads > 1) &&
+         (ctx->init_flags & AOM_CODEC_USE_FRAME_THREADING))
+            ? 1
+            : 0;
+    if (ctx->config.dec) {
+      priv->cfg = *ctx->config.dec;
+      ctx->config.dec = &priv->cfg;
+    }
+  }
+
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t decoder_destroy(aom_codec_alg_priv_t *ctx) {
+  if (ctx->frame_workers != NULL) {
+    int i;
+    for (i = 0; i < ctx->num_frame_workers; ++i) {
+      AVxWorker *const worker = &ctx->frame_workers[i];
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      aom_get_worker_interface()->end(worker);
+      av1_remove_common(&frame_worker_data->pbi->common);
+#if CONFIG_LOOP_RESTORATION
+      av1_free_restoration_buffers(&frame_worker_data->pbi->common);
+#endif  // CONFIG_LOOP_RESTORATION
+      av1_decoder_remove(frame_worker_data->pbi);
+      aom_free(frame_worker_data->scratch_buffer);
+#if CONFIG_MULTITHREAD
+      pthread_mutex_destroy(&frame_worker_data->stats_mutex);
+      pthread_cond_destroy(&frame_worker_data->stats_cond);
+#endif
+      aom_free(frame_worker_data);
+    }
+#if CONFIG_MULTITHREAD
+    pthread_mutex_destroy(&ctx->buffer_pool->pool_mutex);
+#endif
+  }
+
+  if (ctx->buffer_pool) {
+    av1_free_ref_frame_buffers(ctx->buffer_pool);
+    av1_free_internal_frame_buffers(&ctx->buffer_pool->int_frame_buffers);
+  }
+
+  aom_free(ctx->frame_workers);
+  aom_free(ctx->buffer_pool);
+  aom_free(ctx);
+  return AOM_CODEC_OK;
+}
+
+static int parse_bitdepth_colorspace_sampling(BITSTREAM_PROFILE profile,
+                                              struct aom_read_bit_buffer *rb) {
+  aom_color_space_t color_space;
+  if (profile >= PROFILE_2) rb->bit_offset += 1;  // Bit-depth 10 or 12.
+  color_space = (aom_color_space_t)aom_rb_read_literal(rb, 3);
+  if (color_space != AOM_CS_SRGB) {
+    rb->bit_offset += 1;  // [16,235] (including xvycc) vs [0,255] range.
+    if (profile == PROFILE_1 || profile == PROFILE_3) {
+      rb->bit_offset += 2;  // subsampling x/y.
+      rb->bit_offset += 1;  // unused.
+    }
+  } else {
+    if (profile == PROFILE_1 || profile == PROFILE_3) {
+      rb->bit_offset += 1;  // unused
+    } else {
+      // RGB is only available in version 1.
+      return 0;
+    }
+  }
+  return 1;
+}
+
+static aom_codec_err_t decoder_peek_si_internal(
+    const uint8_t *data, unsigned int data_sz, aom_codec_stream_info_t *si,
+    int *is_intra_only, aom_decrypt_cb decrypt_cb, void *decrypt_state) {
+  int intra_only_flag = 0;
+  uint8_t clear_buffer[9];
+
+  if (data + data_sz <= data) return AOM_CODEC_INVALID_PARAM;
+
+  si->is_kf = 0;
+  si->w = si->h = 0;
+
+  if (decrypt_cb) {
+    data_sz = AOMMIN(sizeof(clear_buffer), data_sz);
+    decrypt_cb(decrypt_state, data, clear_buffer, data_sz);
+    data = clear_buffer;
+  }
+
+  {
+    int show_frame;
+    int error_resilient;
+    struct aom_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL };
+    const int frame_marker = aom_rb_read_literal(&rb, 2);
+    const BITSTREAM_PROFILE profile = av1_read_profile(&rb);
+
+    if (frame_marker != AOM_FRAME_MARKER) return AOM_CODEC_UNSUP_BITSTREAM;
+
+    if (profile >= MAX_PROFILES) return AOM_CODEC_UNSUP_BITSTREAM;
+
+    if ((profile >= 2 && data_sz <= 1) || data_sz < 1)
+      return AOM_CODEC_UNSUP_BITSTREAM;
+
+    if (aom_rb_read_bit(&rb)) {     // show an existing frame
+      aom_rb_read_literal(&rb, 3);  // Frame buffer to show.
+      return AOM_CODEC_OK;
+    }
+
+    if (data_sz <= 8) return AOM_CODEC_UNSUP_BITSTREAM;
+
+    si->is_kf = !aom_rb_read_bit(&rb);
+    show_frame = aom_rb_read_bit(&rb);
+    error_resilient = aom_rb_read_bit(&rb);
+#if CONFIG_REFERENCE_BUFFER
+    {
+      /* TODO: Move outside frame loop or inside key-frame branch */
+      int frame_id_len;
+      SequenceHeader seq_params;
+      read_sequence_header(&seq_params);
+      if (seq_params.frame_id_numbers_present_flag) {
+        frame_id_len = seq_params.frame_id_length_minus7 + 7;
+        aom_rb_read_literal(&rb, frame_id_len);
+      }
+    }
+#endif
+    if (si->is_kf) {
+      if (!av1_read_sync_code(&rb)) return AOM_CODEC_UNSUP_BITSTREAM;
+
+      if (!parse_bitdepth_colorspace_sampling(profile, &rb))
+        return AOM_CODEC_UNSUP_BITSTREAM;
+      av1_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
+    } else {
+      intra_only_flag = show_frame ? 0 : aom_rb_read_bit(&rb);
+
+      rb.bit_offset += error_resilient ? 0 : 2;  // reset_frame_context
+
+      if (intra_only_flag) {
+        if (!av1_read_sync_code(&rb)) return AOM_CODEC_UNSUP_BITSTREAM;
+        if (profile > PROFILE_0) {
+          if (!parse_bitdepth_colorspace_sampling(profile, &rb))
+            return AOM_CODEC_UNSUP_BITSTREAM;
+        }
+        rb.bit_offset += REF_FRAMES;  // refresh_frame_flags
+        av1_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
+      }
+    }
+  }
+  if (is_intra_only != NULL) *is_intra_only = intra_only_flag;
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t decoder_peek_si(const uint8_t *data,
+                                       unsigned int data_sz,
+                                       aom_codec_stream_info_t *si) {
+  return decoder_peek_si_internal(data, data_sz, si, NULL, NULL, NULL);
+}
+
+static aom_codec_err_t decoder_get_si(aom_codec_alg_priv_t *ctx,
+                                      aom_codec_stream_info_t *si) {
+  const size_t sz = (si->sz >= sizeof(av1_stream_info_t))
+                        ? sizeof(av1_stream_info_t)
+                        : sizeof(aom_codec_stream_info_t);
+  memcpy(si, &ctx->si, sz);
+  si->sz = (unsigned int)sz;
+
+  return AOM_CODEC_OK;
+}
+
+static void set_error_detail(aom_codec_alg_priv_t *ctx,
+                             const char *const error) {
+  ctx->base.err_detail = error;
+}
+
+static aom_codec_err_t update_error_state(
+    aom_codec_alg_priv_t *ctx, const struct aom_internal_error_info *error) {
+  if (error->error_code)
+    set_error_detail(ctx, error->has_detail ? error->detail : NULL);
+
+  return error->error_code;
+}
+
+static void init_buffer_callbacks(aom_codec_alg_priv_t *ctx) {
+  int i;
+
+  for (i = 0; i < ctx->num_frame_workers; ++i) {
+    AVxWorker *const worker = &ctx->frame_workers[i];
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+    BufferPool *const pool = cm->buffer_pool;
+
+    cm->new_fb_idx = INVALID_IDX;
+    cm->byte_alignment = ctx->byte_alignment;
+    cm->skip_loop_filter = ctx->skip_loop_filter;
+
+    if (ctx->get_ext_fb_cb != NULL && ctx->release_ext_fb_cb != NULL) {
+      pool->get_fb_cb = ctx->get_ext_fb_cb;
+      pool->release_fb_cb = ctx->release_ext_fb_cb;
+      pool->cb_priv = ctx->ext_priv;
+    } else {
+      pool->get_fb_cb = av1_get_frame_buffer;
+      pool->release_fb_cb = av1_release_frame_buffer;
+
+      if (av1_alloc_internal_frame_buffers(&pool->int_frame_buffers))
+        aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+                           "Failed to initialize internal frame buffers");
+
+      pool->cb_priv = &pool->int_frame_buffers;
+    }
+  }
+}
+
+static void set_default_ppflags(aom_postproc_cfg_t *cfg) {
+  cfg->post_proc_flag = AOM_DEBLOCK | AOM_DEMACROBLOCK;
+  cfg->deblocking_level = 4;
+  cfg->noise_level = 0;
+}
+
+static int frame_worker_hook(void *arg1, void *arg2) {
+  FrameWorkerData *const frame_worker_data = (FrameWorkerData *)arg1;
+  const uint8_t *data = frame_worker_data->data;
+  (void)arg2;
+
+  frame_worker_data->result = av1_receive_compressed_data(
+      frame_worker_data->pbi, frame_worker_data->data_size, &data);
+  frame_worker_data->data_end = data;
+
+  if (frame_worker_data->pbi->common.frame_parallel_decode) {
+    // In frame parallel decoding, a worker thread must successfully decode all
+    // the compressed data.
+    if (frame_worker_data->result != 0 ||
+        frame_worker_data->data + frame_worker_data->data_size - 1 > data) {
+      AVxWorker *const worker = frame_worker_data->pbi->frame_worker_owner;
+      BufferPool *const pool = frame_worker_data->pbi->common.buffer_pool;
+      // Signal all the other threads that are waiting for this frame.
+      av1_frameworker_lock_stats(worker);
+      frame_worker_data->frame_context_ready = 1;
+      lock_buffer_pool(pool);
+      frame_worker_data->pbi->cur_buf->buf.corrupted = 1;
+      unlock_buffer_pool(pool);
+      frame_worker_data->pbi->need_resync = 1;
+      av1_frameworker_signal_stats(worker);
+      av1_frameworker_unlock_stats(worker);
+      return 0;
+    }
+  } else if (frame_worker_data->result != 0) {
+    // Check decode result in serial decode.
+    frame_worker_data->pbi->cur_buf->buf.corrupted = 1;
+    frame_worker_data->pbi->need_resync = 1;
+  }
+  return !frame_worker_data->result;
+}
+
+static aom_codec_err_t init_decoder(aom_codec_alg_priv_t *ctx) {
+  int i;
+  const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+
+  ctx->last_show_frame = -1;
+  ctx->next_submit_worker_id = 0;
+  ctx->last_submit_worker_id = 0;
+  ctx->next_output_worker_id = 0;
+  ctx->frame_cache_read = 0;
+  ctx->frame_cache_write = 0;
+  ctx->num_cache_frames = 0;
+  ctx->need_resync = 1;
+  ctx->num_frame_workers =
+      (ctx->frame_parallel_decode == 1) ? ctx->cfg.threads : 1;
+  if (ctx->num_frame_workers > MAX_DECODE_THREADS)
+    ctx->num_frame_workers = MAX_DECODE_THREADS;
+  ctx->available_threads = ctx->num_frame_workers;
+  ctx->flushed = 0;
+
+  ctx->buffer_pool = (BufferPool *)aom_calloc(1, sizeof(BufferPool));
+  if (ctx->buffer_pool == NULL) return AOM_CODEC_MEM_ERROR;
+
+#if CONFIG_MULTITHREAD
+  if (pthread_mutex_init(&ctx->buffer_pool->pool_mutex, NULL)) {
+    set_error_detail(ctx, "Failed to allocate buffer pool mutex");
+    return AOM_CODEC_MEM_ERROR;
+  }
+#endif
+
+  ctx->frame_workers = (AVxWorker *)aom_malloc(ctx->num_frame_workers *
+                                               sizeof(*ctx->frame_workers));
+  if (ctx->frame_workers == NULL) {
+    set_error_detail(ctx, "Failed to allocate frame_workers");
+    return AOM_CODEC_MEM_ERROR;
+  }
+
+  for (i = 0; i < ctx->num_frame_workers; ++i) {
+    AVxWorker *const worker = &ctx->frame_workers[i];
+    FrameWorkerData *frame_worker_data = NULL;
+    winterface->init(worker);
+    worker->data1 = aom_memalign(32, sizeof(FrameWorkerData));
+    if (worker->data1 == NULL) {
+      set_error_detail(ctx, "Failed to allocate frame_worker_data");
+      return AOM_CODEC_MEM_ERROR;
+    }
+    frame_worker_data = (FrameWorkerData *)worker->data1;
+    frame_worker_data->pbi = av1_decoder_create(ctx->buffer_pool);
+    if (frame_worker_data->pbi == NULL) {
+      set_error_detail(ctx, "Failed to allocate frame_worker_data");
+      return AOM_CODEC_MEM_ERROR;
+    }
+    frame_worker_data->pbi->frame_worker_owner = worker;
+    frame_worker_data->worker_id = i;
+    frame_worker_data->scratch_buffer = NULL;
+    frame_worker_data->scratch_buffer_size = 0;
+    frame_worker_data->frame_context_ready = 0;
+    frame_worker_data->received_frame = 0;
+#if CONFIG_MULTITHREAD
+    if (pthread_mutex_init(&frame_worker_data->stats_mutex, NULL)) {
+      set_error_detail(ctx, "Failed to allocate frame_worker_data mutex");
+      return AOM_CODEC_MEM_ERROR;
+    }
+
+    if (pthread_cond_init(&frame_worker_data->stats_cond, NULL)) {
+      set_error_detail(ctx, "Failed to allocate frame_worker_data cond");
+      return AOM_CODEC_MEM_ERROR;
+    }
+#endif
+    // If decoding in serial mode, FrameWorker thread could create tile worker
+    // thread or loopfilter thread.
+    frame_worker_data->pbi->max_threads =
+        (ctx->frame_parallel_decode == 0) ? ctx->cfg.threads : 0;
+
+    frame_worker_data->pbi->inv_tile_order = ctx->invert_tile_order;
+    frame_worker_data->pbi->common.frame_parallel_decode =
+        ctx->frame_parallel_decode;
+    worker->hook = (AVxWorkerHook)frame_worker_hook;
+    if (!winterface->reset(worker)) {
+      set_error_detail(ctx, "Frame Worker thread creation failed");
+      return AOM_CODEC_MEM_ERROR;
+    }
+  }
+
+  // If postprocessing was enabled by the application and a
+  // configuration has not been provided, default it.
+  if (!ctx->postproc_cfg_set && (ctx->base.init_flags & AOM_CODEC_USE_POSTPROC))
+    set_default_ppflags(&ctx->postproc_cfg);
+
+  init_buffer_callbacks(ctx);
+
+  return AOM_CODEC_OK;
+}
+
+static INLINE void check_resync(aom_codec_alg_priv_t *const ctx,
+                                const AV1Decoder *const pbi) {
+  // Clear resync flag if worker got a key frame or intra only frame.
+  if (ctx->need_resync == 1 && pbi->need_resync == 0 &&
+      (pbi->common.intra_only || pbi->common.frame_type == KEY_FRAME))
+    ctx->need_resync = 0;
+}
+
+static aom_codec_err_t decode_one(aom_codec_alg_priv_t *ctx,
+                                  const uint8_t **data, unsigned int data_sz,
+                                  void *user_priv, int64_t deadline) {
+  const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+  (void)deadline;
+
+  // Determine the stream parameters. Note that we rely on peek_si to
+  // validate that we have a buffer that does not wrap around the top
+  // of the heap.
+  if (!ctx->si.h) {
+    int is_intra_only = 0;
+    const aom_codec_err_t res =
+        decoder_peek_si_internal(*data, data_sz, &ctx->si, &is_intra_only,
+                                 ctx->decrypt_cb, ctx->decrypt_state);
+    if (res != AOM_CODEC_OK) return res;
+
+    if (!ctx->si.is_kf && !is_intra_only) return AOM_CODEC_ERROR;
+  }
+
+  if (!ctx->frame_parallel_decode) {
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    frame_worker_data->data = *data;
+    frame_worker_data->data_size = data_sz;
+    frame_worker_data->user_priv = user_priv;
+    frame_worker_data->received_frame = 1;
+
+    // Set these even if already initialized.  The caller may have changed the
+    // decrypt config between frames.
+    frame_worker_data->pbi->decrypt_cb = ctx->decrypt_cb;
+    frame_worker_data->pbi->decrypt_state = ctx->decrypt_state;
+#if CONFIG_INSPECTION
+    frame_worker_data->pbi->inspect_cb = ctx->inspect_cb;
+    frame_worker_data->pbi->inspect_ctx = ctx->inspect_ctx;
+#endif
+
+#if CONFIG_EXT_TILE
+    frame_worker_data->pbi->dec_tile_row = ctx->decode_tile_row;
+    frame_worker_data->pbi->dec_tile_col = ctx->decode_tile_col;
+#endif  // CONFIG_EXT_TILE
+
+    worker->had_error = 0;
+    winterface->execute(worker);
+
+    // Update data pointer after decode.
+    *data = frame_worker_data->data_end;
+
+    if (worker->had_error)
+      return update_error_state(ctx, &frame_worker_data->pbi->common.error);
+
+    check_resync(ctx, frame_worker_data->pbi);
+  } else {
+    AVxWorker *const worker = &ctx->frame_workers[ctx->next_submit_worker_id];
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    // Copy context from last worker thread to next worker thread.
+    if (ctx->next_submit_worker_id != ctx->last_submit_worker_id)
+      av1_frameworker_copy_context(
+          &ctx->frame_workers[ctx->next_submit_worker_id],
+          &ctx->frame_workers[ctx->last_submit_worker_id]);
+
+    frame_worker_data->pbi->ready_for_new_data = 0;
+    // Copy the compressed data into worker's internal buffer.
+    // TODO(hkuang): Will all the workers allocate the same size
+    // as the size of the first intra frame be better? This will
+    // avoid too many deallocate and allocate.
+    if (frame_worker_data->scratch_buffer_size < data_sz) {
+      aom_free(frame_worker_data->scratch_buffer);
+      frame_worker_data->scratch_buffer = (uint8_t *)aom_malloc(data_sz);
+      if (frame_worker_data->scratch_buffer == NULL) {
+        set_error_detail(ctx, "Failed to reallocate scratch buffer");
+        return AOM_CODEC_MEM_ERROR;
+      }
+      frame_worker_data->scratch_buffer_size = data_sz;
+    }
+    frame_worker_data->data_size = data_sz;
+    memcpy(frame_worker_data->scratch_buffer, *data, data_sz);
+
+    frame_worker_data->frame_decoded = 0;
+    frame_worker_data->frame_context_ready = 0;
+    frame_worker_data->received_frame = 1;
+    frame_worker_data->data = frame_worker_data->scratch_buffer;
+    frame_worker_data->user_priv = user_priv;
+
+    if (ctx->next_submit_worker_id != ctx->last_submit_worker_id)
+      ctx->last_submit_worker_id =
+          (ctx->last_submit_worker_id + 1) % ctx->num_frame_workers;
+
+    ctx->next_submit_worker_id =
+        (ctx->next_submit_worker_id + 1) % ctx->num_frame_workers;
+    --ctx->available_threads;
+    worker->had_error = 0;
+    winterface->launch(worker);
+  }
+
+  return AOM_CODEC_OK;
+}
+
+static void wait_worker_and_cache_frame(aom_codec_alg_priv_t *ctx) {
+  YV12_BUFFER_CONFIG sd;
+  const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+  AVxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
+  FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+  ctx->next_output_worker_id =
+      (ctx->next_output_worker_id + 1) % ctx->num_frame_workers;
+  // TODO(hkuang): Add worker error handling here.
+  winterface->sync(worker);
+  frame_worker_data->received_frame = 0;
+  ++ctx->available_threads;
+
+  check_resync(ctx, frame_worker_data->pbi);
+
+  if (av1_get_raw_frame(frame_worker_data->pbi, &sd) == 0) {
+    AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+    RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
+    ctx->frame_cache[ctx->frame_cache_write].fb_idx = cm->new_fb_idx;
+    yuvconfig2image(&ctx->frame_cache[ctx->frame_cache_write].img, &sd,
+                    frame_worker_data->user_priv);
+    ctx->frame_cache[ctx->frame_cache_write].img.fb_priv =
+        frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv;
+    ctx->frame_cache_write = (ctx->frame_cache_write + 1) % FRAME_CACHE_SIZE;
+    ++ctx->num_cache_frames;
+  }
+}
+
+static aom_codec_err_t decoder_decode(aom_codec_alg_priv_t *ctx,
+                                      const uint8_t *data, unsigned int data_sz,
+                                      void *user_priv, long deadline) {
+  const uint8_t *data_start = data;
+  const uint8_t *const data_end = data + data_sz;
+  aom_codec_err_t res;
+  uint32_t frame_sizes[8];
+  int frame_count;
+
+  if (data == NULL && data_sz == 0) {
+    ctx->flushed = 1;
+    return AOM_CODEC_OK;
+  }
+
+  // Reset flushed when receiving a valid frame.
+  ctx->flushed = 0;
+
+  // Initialize the decoder workers on the first frame.
+  if (ctx->frame_workers == NULL) {
+    res = init_decoder(ctx);
+    if (res != AOM_CODEC_OK) return res;
+  }
+
+  res = av1_parse_superframe_index(data, data_sz, frame_sizes, &frame_count,
+                                   ctx->decrypt_cb, ctx->decrypt_state);
+  if (res != AOM_CODEC_OK) return res;
+
+  if (ctx->frame_parallel_decode) {
+    // Decode in frame parallel mode. When decoding in this mode, the frame
+    // passed to the decoder must be either a normal frame or a superframe with
+    // superframe index so the decoder could get each frame's start position
+    // in the superframe.
+    if (frame_count > 0) {
+      int i;
+
+      for (i = 0; i < frame_count; ++i) {
+        const uint8_t *data_start_copy = data_start;
+        const uint32_t frame_size = frame_sizes[i];
+        if (data_start < data ||
+            frame_size > (uint32_t)(data_end - data_start)) {
+          set_error_detail(ctx, "Invalid frame size in index");
+          return AOM_CODEC_CORRUPT_FRAME;
+        }
+
+        if (ctx->available_threads == 0) {
+          // No more threads for decoding. Wait until the next output worker
+          // finishes decoding. Then copy the decoded frame into cache.
+          if (ctx->num_cache_frames < FRAME_CACHE_SIZE) {
+            wait_worker_and_cache_frame(ctx);
+          } else {
+            // TODO(hkuang): Add unit test to test this path.
+            set_error_detail(ctx, "Frame output cache is full.");
+            return AOM_CODEC_ERROR;
+          }
+        }
+
+        res =
+            decode_one(ctx, &data_start_copy, frame_size, user_priv, deadline);
+        if (res != AOM_CODEC_OK) return res;
+        data_start += frame_size;
+      }
+    } else {
+      if (ctx->available_threads == 0) {
+        // No more threads for decoding. Wait until the next output worker
+        // finishes decoding. Then copy the decoded frame into cache.
+        if (ctx->num_cache_frames < FRAME_CACHE_SIZE) {
+          wait_worker_and_cache_frame(ctx);
+        } else {
+          // TODO(hkuang): Add unit test to test this path.
+          set_error_detail(ctx, "Frame output cache is full.");
+          return AOM_CODEC_ERROR;
+        }
+      }
+
+      res = decode_one(ctx, &data, data_sz, user_priv, deadline);
+      if (res != AOM_CODEC_OK) return res;
+    }
+  } else {
+    // Decode in serial mode.
+    if (frame_count > 0) {
+      int i;
+
+      for (i = 0; i < frame_count; ++i) {
+        const uint8_t *data_start_copy = data_start;
+        const uint32_t frame_size = frame_sizes[i];
+        if (data_start < data ||
+            frame_size > (uint32_t)(data_end - data_start)) {
+          set_error_detail(ctx, "Invalid frame size in index");
+          return AOM_CODEC_CORRUPT_FRAME;
+        }
+
+        res =
+            decode_one(ctx, &data_start_copy, frame_size, user_priv, deadline);
+        if (res != AOM_CODEC_OK) return res;
+
+        data_start += frame_size;
+      }
+    } else {
+      while (data_start < data_end) {
+        const uint32_t frame_size = (uint32_t)(data_end - data_start);
+        res = decode_one(ctx, &data_start, frame_size, user_priv, deadline);
+        if (res != AOM_CODEC_OK) return res;
+
+        // Account for suboptimal termination by the encoder.
+        while (data_start < data_end) {
+          const uint8_t marker =
+              read_marker(ctx->decrypt_cb, ctx->decrypt_state, data_start);
+          if (marker) break;
+          ++data_start;
+        }
+      }
+    }
+  }
+
+  return res;
+}
+
+static void release_last_output_frame(aom_codec_alg_priv_t *ctx) {
+  RefCntBuffer *const frame_bufs = ctx->buffer_pool->frame_bufs;
+  // Decrease reference count of last output frame in frame parallel mode.
+  if (ctx->frame_parallel_decode && ctx->last_show_frame >= 0) {
+    BufferPool *const pool = ctx->buffer_pool;
+    lock_buffer_pool(pool);
+    decrease_ref_count(ctx->last_show_frame, frame_bufs, pool);
+    unlock_buffer_pool(pool);
+  }
+}
+
+static aom_image_t *decoder_get_frame(aom_codec_alg_priv_t *ctx,
+                                      aom_codec_iter_t *iter) {
+  aom_image_t *img = NULL;
+
+  // Only return frame when all the cpu are busy or
+  // application fluhsed the decoder in frame parallel decode.
+  if (ctx->frame_parallel_decode && ctx->available_threads > 0 &&
+      !ctx->flushed) {
+    return NULL;
+  }
+
+  // Output the frames in the cache first.
+  if (ctx->num_cache_frames > 0) {
+    release_last_output_frame(ctx);
+    ctx->last_show_frame = ctx->frame_cache[ctx->frame_cache_read].fb_idx;
+    if (ctx->need_resync) return NULL;
+    img = &ctx->frame_cache[ctx->frame_cache_read].img;
+    ctx->frame_cache_read = (ctx->frame_cache_read + 1) % FRAME_CACHE_SIZE;
+    --ctx->num_cache_frames;
+    return img;
+  }
+
+  // iter acts as a flip flop, so an image is only returned on the first
+  // call to get_frame.
+  if (*iter == NULL && ctx->frame_workers != NULL) {
+    do {
+      YV12_BUFFER_CONFIG sd;
+      const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+      AVxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      ctx->next_output_worker_id =
+          (ctx->next_output_worker_id + 1) % ctx->num_frame_workers;
+      // Wait for the frame from worker thread.
+      if (winterface->sync(worker)) {
+        // Check if worker has received any frames.
+        if (frame_worker_data->received_frame == 1) {
+          ++ctx->available_threads;
+          frame_worker_data->received_frame = 0;
+          check_resync(ctx, frame_worker_data->pbi);
+        }
+        if (av1_get_raw_frame(frame_worker_data->pbi, &sd) == 0) {
+          AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+          RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
+          release_last_output_frame(ctx);
+          ctx->last_show_frame = frame_worker_data->pbi->common.new_fb_idx;
+          if (ctx->need_resync) return NULL;
+          yuvconfig2image(&ctx->img, &sd, frame_worker_data->user_priv);
+
+#if CONFIG_EXT_TILE
+          if (cm->tile_encoding_mode &&
+              frame_worker_data->pbi->dec_tile_row >= 0) {
+            const int tile_row =
+                AOMMIN(frame_worker_data->pbi->dec_tile_row, cm->tile_rows - 1);
+            const int mi_row = tile_row * cm->tile_height;
+            const int ssy = ctx->img.y_chroma_shift;
+            int plane;
+            ctx->img.planes[0] += mi_row * MI_SIZE * ctx->img.stride[0];
+            for (plane = 1; plane < MAX_MB_PLANE; ++plane) {
+              ctx->img.planes[plane] +=
+                  mi_row * (MI_SIZE >> ssy) * ctx->img.stride[plane];
+            }
+            ctx->img.d_h =
+                AOMMIN(cm->tile_height, cm->mi_rows - mi_row) * MI_SIZE;
+          }
+
+          if (cm->tile_encoding_mode &&
+              frame_worker_data->pbi->dec_tile_col >= 0) {
+            const int tile_col =
+                AOMMIN(frame_worker_data->pbi->dec_tile_col, cm->tile_cols - 1);
+            const int mi_col = tile_col * cm->tile_width;
+            const int ssx = ctx->img.x_chroma_shift;
+            int plane;
+            ctx->img.planes[0] += mi_col * MI_SIZE;
+            for (plane = 1; plane < MAX_MB_PLANE; ++plane) {
+              ctx->img.planes[plane] += mi_col * (MI_SIZE >> ssx);
+            }
+            ctx->img.d_w =
+                AOMMIN(cm->tile_width, cm->mi_cols - mi_col) * MI_SIZE;
+          }
+#endif  // CONFIG_EXT_TILE
+
+          ctx->img.fb_priv = frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv;
+          img = &ctx->img;
+          return img;
+        }
+      } else {
+        // Decoding failed. Release the worker thread.
+        frame_worker_data->received_frame = 0;
+        ++ctx->available_threads;
+        ctx->need_resync = 1;
+        if (ctx->flushed != 1) return NULL;
+      }
+    } while (ctx->next_output_worker_id != ctx->next_submit_worker_id);
+  }
+  return NULL;
+}
+
+static aom_codec_err_t decoder_set_fb_fn(
+    aom_codec_alg_priv_t *ctx, aom_get_frame_buffer_cb_fn_t cb_get,
+    aom_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) {
+  if (cb_get == NULL || cb_release == NULL) {
+    return AOM_CODEC_INVALID_PARAM;
+  } else if (ctx->frame_workers == NULL) {
+    // If the decoder has already been initialized, do not accept changes to
+    // the frame buffer functions.
+    ctx->get_ext_fb_cb = cb_get;
+    ctx->release_ext_fb_cb = cb_release;
+    ctx->ext_priv = cb_priv;
+    return AOM_CODEC_OK;
+  }
+
+  return AOM_CODEC_ERROR;
+}
+
+static aom_codec_err_t ctrl_set_reference(aom_codec_alg_priv_t *ctx,
+                                          va_list args) {
+  aom_ref_frame_t *const data = va_arg(args, aom_ref_frame_t *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (data) {
+    aom_ref_frame_t *const frame = (aom_ref_frame_t *)data;
+    YV12_BUFFER_CONFIG sd;
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    image2yuvconfig(&frame->img, &sd);
+    return av1_set_reference_dec(&frame_worker_data->pbi->common,
+                                 ref_frame_to_av1_reframe(frame->frame_type),
+                                 &sd);
+  } else {
+    return AOM_CODEC_INVALID_PARAM;
+  }
+}
+
+static aom_codec_err_t ctrl_copy_reference(aom_codec_alg_priv_t *ctx,
+                                           va_list args) {
+  const aom_ref_frame_t *const frame = va_arg(args, aom_ref_frame_t *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (frame) {
+    YV12_BUFFER_CONFIG sd;
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    image2yuvconfig(&frame->img, &sd);
+    return av1_copy_reference_dec(frame_worker_data->pbi,
+                                  (AOM_REFFRAME)frame->frame_type, &sd);
+  } else {
+    return AOM_CODEC_INVALID_PARAM;
+  }
+}
+
+static aom_codec_err_t ctrl_get_reference(aom_codec_alg_priv_t *ctx,
+                                          va_list args) {
+  av1_ref_frame_t *data = va_arg(args, av1_ref_frame_t *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (data) {
+    YV12_BUFFER_CONFIG *fb;
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    fb = get_ref_frame(&frame_worker_data->pbi->common, data->idx);
+    if (fb == NULL) return AOM_CODEC_ERROR;
+    yuvconfig2image(&data->img, fb, NULL);
+    return AOM_CODEC_OK;
+  } else {
+    return AOM_CODEC_INVALID_PARAM;
+  }
+}
+
+static aom_codec_err_t ctrl_get_new_frame_image(aom_codec_alg_priv_t *ctx,
+                                                va_list args) {
+  aom_image_t *new_img = va_arg(args, aom_image_t *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (new_img) {
+    YV12_BUFFER_CONFIG new_frame;
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+
+    if (av1_get_frame_to_show(frame_worker_data->pbi, &new_frame) == 0) {
+      yuvconfig2image(new_img, &new_frame, NULL);
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  } else {
+    return AOM_CODEC_INVALID_PARAM;
+  }
+}
+
+static aom_codec_err_t ctrl_set_postproc(aom_codec_alg_priv_t *ctx,
+                                         va_list args) {
+  (void)ctx;
+  (void)args;
+  return AOM_CODEC_INCAPABLE;
+}
+
+static aom_codec_err_t ctrl_set_dbg_options(aom_codec_alg_priv_t *ctx,
+                                            va_list args) {
+  (void)ctx;
+  (void)args;
+  return AOM_CODEC_INCAPABLE;
+}
+
+static aom_codec_err_t ctrl_get_last_ref_updates(aom_codec_alg_priv_t *ctx,
+                                                 va_list args) {
+  int *const update_info = va_arg(args, int *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (update_info) {
+    if (ctx->frame_workers) {
+      AVxWorker *const worker = ctx->frame_workers;
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      *update_info = frame_worker_data->pbi->refresh_frame_flags;
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  }
+
+  return AOM_CODEC_INVALID_PARAM;
+}
+
+static aom_codec_err_t ctrl_get_last_quantizer(aom_codec_alg_priv_t *ctx,
+                                               va_list args) {
+  int *const arg = va_arg(args, int *);
+  if (arg == NULL) return AOM_CODEC_INVALID_PARAM;
+  *arg =
+      ((FrameWorkerData *)ctx->frame_workers[0].data1)->pbi->common.base_qindex;
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_get_frame_corrupted(aom_codec_alg_priv_t *ctx,
+                                                va_list args) {
+  int *corrupted = va_arg(args, int *);
+
+  if (corrupted) {
+    if (ctx->frame_workers) {
+      AVxWorker *const worker = ctx->frame_workers;
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      RefCntBuffer *const frame_bufs =
+          frame_worker_data->pbi->common.buffer_pool->frame_bufs;
+      if (frame_worker_data->pbi->common.frame_to_show == NULL)
+        return AOM_CODEC_ERROR;
+      if (ctx->last_show_frame >= 0)
+        *corrupted = frame_bufs[ctx->last_show_frame].buf.corrupted;
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  }
+
+  return AOM_CODEC_INVALID_PARAM;
+}
+
+static aom_codec_err_t ctrl_get_frame_size(aom_codec_alg_priv_t *ctx,
+                                           va_list args) {
+  int *const frame_size = va_arg(args, int *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (frame_size) {
+    if (ctx->frame_workers) {
+      AVxWorker *const worker = ctx->frame_workers;
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      const AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+      frame_size[0] = cm->width;
+      frame_size[1] = cm->height;
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  }
+
+  return AOM_CODEC_INVALID_PARAM;
+}
+
+static aom_codec_err_t ctrl_get_render_size(aom_codec_alg_priv_t *ctx,
+                                            va_list args) {
+  int *const render_size = va_arg(args, int *);
+
+  // Only support this function in serial decode.
+  if (ctx->frame_parallel_decode) {
+    set_error_detail(ctx, "Not supported in frame parallel decode");
+    return AOM_CODEC_INCAPABLE;
+  }
+
+  if (render_size) {
+    if (ctx->frame_workers) {
+      AVxWorker *const worker = ctx->frame_workers;
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      const AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+      render_size[0] = cm->render_width;
+      render_size[1] = cm->render_height;
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  }
+
+  return AOM_CODEC_INVALID_PARAM;
+}
+
+static aom_codec_err_t ctrl_get_bit_depth(aom_codec_alg_priv_t *ctx,
+                                          va_list args) {
+  unsigned int *const bit_depth = va_arg(args, unsigned int *);
+  AVxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
+
+  if (bit_depth) {
+    if (worker) {
+      FrameWorkerData *const frame_worker_data =
+          (FrameWorkerData *)worker->data1;
+      const AV1_COMMON *const cm = &frame_worker_data->pbi->common;
+      *bit_depth = cm->bit_depth;
+      return AOM_CODEC_OK;
+    } else {
+      return AOM_CODEC_ERROR;
+    }
+  }
+
+  return AOM_CODEC_INVALID_PARAM;
+}
+
+static aom_codec_err_t ctrl_set_invert_tile_order(aom_codec_alg_priv_t *ctx,
+                                                  va_list args) {
+  ctx->invert_tile_order = va_arg(args, int);
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_set_decryptor(aom_codec_alg_priv_t *ctx,
+                                          va_list args) {
+  aom_decrypt_init *init = va_arg(args, aom_decrypt_init *);
+  ctx->decrypt_cb = init ? init->decrypt_cb : NULL;
+  ctx->decrypt_state = init ? init->decrypt_state : NULL;
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_set_byte_alignment(aom_codec_alg_priv_t *ctx,
+                                               va_list args) {
+  const int legacy_byte_alignment = 0;
+  const int min_byte_alignment = 32;
+  const int max_byte_alignment = 1024;
+  const int byte_alignment = va_arg(args, int);
+
+  if (byte_alignment != legacy_byte_alignment &&
+      (byte_alignment < min_byte_alignment ||
+       byte_alignment > max_byte_alignment ||
+       (byte_alignment & (byte_alignment - 1)) != 0))
+    return AOM_CODEC_INVALID_PARAM;
+
+  ctx->byte_alignment = byte_alignment;
+  if (ctx->frame_workers) {
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    frame_worker_data->pbi->common.byte_alignment = byte_alignment;
+  }
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_set_skip_loop_filter(aom_codec_alg_priv_t *ctx,
+                                                 va_list args) {
+  ctx->skip_loop_filter = va_arg(args, int);
+
+  if (ctx->frame_workers) {
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    frame_worker_data->pbi->common.skip_loop_filter = ctx->skip_loop_filter;
+  }
+
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_get_accounting(aom_codec_alg_priv_t *ctx,
+                                           va_list args) {
+#if !CONFIG_ACCOUNTING
+  (void)ctx;
+  (void)args;
+  return AOM_CODEC_INCAPABLE;
+#else
+  if (ctx->frame_workers) {
+    AVxWorker *const worker = ctx->frame_workers;
+    FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
+    AV1Decoder *pbi = frame_worker_data->pbi;
+    Accounting **acct = va_arg(args, Accounting **);
+    *acct = &pbi->accounting;
+    return AOM_CODEC_OK;
+  }
+  return AOM_CODEC_ERROR;
+#endif
+}
+static aom_codec_err_t ctrl_set_decode_tile_row(aom_codec_alg_priv_t *ctx,
+                                                va_list args) {
+  ctx->decode_tile_row = va_arg(args, int);
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_set_decode_tile_col(aom_codec_alg_priv_t *ctx,
+                                                va_list args) {
+  ctx->decode_tile_col = va_arg(args, int);
+  return AOM_CODEC_OK;
+}
+
+static aom_codec_err_t ctrl_set_inspection_callback(aom_codec_alg_priv_t *ctx,
+                                                    va_list args) {
+#if !CONFIG_INSPECTION
+  (void)ctx;
+  (void)args;
+  return AOM_CODEC_INCAPABLE;
+#else
+  aom_inspect_init *init = va_arg(args, aom_inspect_init *);
+  ctx->inspect_cb = init->inspect_cb;
+  ctx->inspect_ctx = init->inspect_ctx;
+  return AOM_CODEC_OK;
+#endif
+}
+
+static aom_codec_ctrl_fn_map_t decoder_ctrl_maps[] = {
+  { AOM_COPY_REFERENCE, ctrl_copy_reference },
+
+  // Setters
+  { AOM_SET_REFERENCE, ctrl_set_reference },
+  { AOM_SET_POSTPROC, ctrl_set_postproc },
+  { AOM_SET_DBG_COLOR_REF_FRAME, ctrl_set_dbg_options },
+  { AOM_SET_DBG_COLOR_MB_MODES, ctrl_set_dbg_options },
+  { AOM_SET_DBG_COLOR_B_MODES, ctrl_set_dbg_options },
+  { AOM_SET_DBG_DISPLAY_MV, ctrl_set_dbg_options },
+  { AV1_INVERT_TILE_DECODE_ORDER, ctrl_set_invert_tile_order },
+  { AOMD_SET_DECRYPTOR, ctrl_set_decryptor },
+  { AV1_SET_BYTE_ALIGNMENT, ctrl_set_byte_alignment },
+  { AV1_SET_SKIP_LOOP_FILTER, ctrl_set_skip_loop_filter },
+  { AV1_SET_DECODE_TILE_ROW, ctrl_set_decode_tile_row },
+  { AV1_SET_DECODE_TILE_COL, ctrl_set_decode_tile_col },
+  { AV1_SET_INSPECTION_CALLBACK, ctrl_set_inspection_callback },
+
+  // Getters
+  { AOMD_GET_FRAME_CORRUPTED, ctrl_get_frame_corrupted },
+  { AOMD_GET_LAST_QUANTIZER, ctrl_get_last_quantizer },
+  { AOMD_GET_LAST_REF_UPDATES, ctrl_get_last_ref_updates },
+  { AV1D_GET_BIT_DEPTH, ctrl_get_bit_depth },
+  { AV1D_GET_DISPLAY_SIZE, ctrl_get_render_size },
+  { AV1D_GET_FRAME_SIZE, ctrl_get_frame_size },
+  { AV1_GET_ACCOUNTING, ctrl_get_accounting },
+  { AV1_GET_NEW_FRAME_IMAGE, ctrl_get_new_frame_image },
+  { AV1_GET_REFERENCE, ctrl_get_reference },
+
+  { -1, NULL },
+};
+
+#ifndef VERSION_STRING
+#define VERSION_STRING
+#endif
+CODEC_INTERFACE(aom_codec_av1_dx) = {
+  "AOMedia Project AV1 Decoder" VERSION_STRING,
+  AOM_CODEC_INTERNAL_ABI_VERSION,
+  AOM_CODEC_CAP_DECODER |
+      AOM_CODEC_CAP_EXTERNAL_FRAME_BUFFER,  // aom_codec_caps_t
+  decoder_init,                             // aom_codec_init_fn_t
+  decoder_destroy,                          // aom_codec_destroy_fn_t
+  decoder_ctrl_maps,                        // aom_codec_ctrl_fn_map_t
+  {
+      // NOLINT
+      decoder_peek_si,    // aom_codec_peek_si_fn_t
+      decoder_get_si,     // aom_codec_get_si_fn_t
+      decoder_decode,     // aom_codec_decode_fn_t
+      decoder_get_frame,  // aom_codec_frame_get_fn_t
+      decoder_set_fb_fn,  // aom_codec_set_fb_fn_t
+  },
+  {
+      // NOLINT
+      0,
+      NULL,  // aom_codec_enc_cfg_map_t
+      NULL,  // aom_codec_encode_fn_t
+      NULL,  // aom_codec_get_cx_data_fn_t
+      NULL,  // aom_codec_enc_config_set_fn_t
+      NULL,  // aom_codec_get_global_headers_fn_t
+      NULL,  // aom_codec_get_preview_frame_fn_t
+      NULL   // aom_codec_enc_mr_get_mem_loc_fn_t
+  }
+};