ref: ada850786c7e0a5d6024b7716db9896124fd483e
dir: /vp9/vp9_dx_iface.c/
/*
* 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_config.h"
#include "./vpx_version.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "vpx/vp8dx.h"
#include "vpx/vpx_decoder.h"
#include "vpx_dsp/bitreader_buffer.h"
#include "vpx_dsp/vpx_dsp_common.h"
#include "vpx_util/vpx_thread.h"
#include "vp9/common/vp9_alloccommon.h"
#include "vp9/common/vp9_frame_buffers.h"
#include "vp9/decoder/vp9_decodeframe.h"
#include "vp9/vp9_dx_iface.h"
#include "vp9/vp9_iface_common.h"
#define VP9_CAP_POSTPROC (CONFIG_VP9_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
static vpx_codec_err_t decoder_init(vpx_codec_ctx_t *ctx,
vpx_codec_priv_enc_mr_cfg_t *data) {
// This function only allocates space for the vpx_codec_alg_priv_t
// structure. More memory may be required at the time the stream
// information becomes known.
(void)data;
if (!ctx->priv) {
vpx_codec_alg_priv_t *const priv =
(vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
if (priv == NULL) return VPX_CODEC_MEM_ERROR;
ctx->priv = (vpx_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 & VPX_CODEC_USE_FRAME_THREADING))
? 1
: 0;
if (ctx->config.dec) {
priv->cfg = *ctx->config.dec;
ctx->config.dec = &priv->cfg;
}
}
return VPX_CODEC_OK;
}
static vpx_codec_err_t decoder_destroy(vpx_codec_alg_priv_t *ctx) {
if (ctx->frame_workers != NULL) {
int i;
// Shutdown all threads before reclaiming any memory. The frame-level
// parallel decoder may access data from another worker.
for (i = 0; i < ctx->num_frame_workers; ++i) {
VPxWorker *const worker = &ctx->frame_workers[i];
vpx_get_worker_interface()->end(worker);
}
for (i = 0; i < ctx->num_frame_workers; ++i) {
VPxWorker *const worker = &ctx->frame_workers[i];
FrameWorkerData *const frame_worker_data =
(FrameWorkerData *)worker->data1;
vp9_remove_common(&frame_worker_data->pbi->common);
#if CONFIG_VP9_POSTPROC
vp9_free_postproc_buffers(&frame_worker_data->pbi->common);
#endif
vp9_decoder_remove(frame_worker_data->pbi);
vpx_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
vpx_free(frame_worker_data);
}
#if CONFIG_MULTITHREAD
pthread_mutex_destroy(&ctx->buffer_pool->pool_mutex);
#endif
}
if (ctx->buffer_pool) {
vp9_free_ref_frame_buffers(ctx->buffer_pool);
vp9_free_internal_frame_buffers(&ctx->buffer_pool->int_frame_buffers);
}
vpx_free(ctx->frame_workers);
vpx_free(ctx->buffer_pool);
vpx_free(ctx);
return VPX_CODEC_OK;
}
static int parse_bitdepth_colorspace_sampling(BITSTREAM_PROFILE profile,
struct vpx_read_bit_buffer *rb) {
vpx_color_space_t color_space;
if (profile >= PROFILE_2) rb->bit_offset += 1; // Bit-depth 10 or 12.
color_space = (vpx_color_space_t)vpx_rb_read_literal(rb, 3);
if (color_space != VPX_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 vpx_codec_err_t decoder_peek_si_internal(
const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si,
int *is_intra_only, vpx_decrypt_cb decrypt_cb, void *decrypt_state) {
int intra_only_flag = 0;
uint8_t clear_buffer[10];
if (data + data_sz <= data) return VPX_CODEC_INVALID_PARAM;
si->is_kf = 0;
si->w = si->h = 0;
if (decrypt_cb) {
data_sz = VPXMIN(sizeof(clear_buffer), data_sz);
decrypt_cb(decrypt_state, data, clear_buffer, data_sz);
data = clear_buffer;
}
// A maximum of 6 bits are needed to read the frame marker, profile and
// show_existing_frame.
if (data_sz < 1) return VPX_CODEC_UNSUP_BITSTREAM;
{
int show_frame;
int error_resilient;
struct vpx_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL };
const int frame_marker = vpx_rb_read_literal(&rb, 2);
const BITSTREAM_PROFILE profile = vp9_read_profile(&rb);
if (frame_marker != VP9_FRAME_MARKER) return VPX_CODEC_UNSUP_BITSTREAM;
if (profile >= MAX_PROFILES) return VPX_CODEC_UNSUP_BITSTREAM;
if (vpx_rb_read_bit(&rb)) { // show an existing frame
// If profile is > 2 and show_existing_frame is true, then at least 1 more
// byte (6+3=9 bits) is needed.
if (profile > 2 && data_sz < 2) return VPX_CODEC_UNSUP_BITSTREAM;
vpx_rb_read_literal(&rb, 3); // Frame buffer to show.
return VPX_CODEC_OK;
}
// For the rest of the function, a maximum of 9 more bytes are needed
// (computed by taking the maximum possible bits needed in each case). Note
// that this has to be updated if we read any more bits in this function.
if (data_sz < 10) return VPX_CODEC_UNSUP_BITSTREAM;
si->is_kf = !vpx_rb_read_bit(&rb);
show_frame = vpx_rb_read_bit(&rb);
error_resilient = vpx_rb_read_bit(&rb);
if (si->is_kf) {
if (!vp9_read_sync_code(&rb)) return VPX_CODEC_UNSUP_BITSTREAM;
if (!parse_bitdepth_colorspace_sampling(profile, &rb))
return VPX_CODEC_UNSUP_BITSTREAM;
vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
} else {
intra_only_flag = show_frame ? 0 : vpx_rb_read_bit(&rb);
rb.bit_offset += error_resilient ? 0 : 2; // reset_frame_context
if (intra_only_flag) {
if (!vp9_read_sync_code(&rb)) return VPX_CODEC_UNSUP_BITSTREAM;
if (profile > PROFILE_0) {
if (!parse_bitdepth_colorspace_sampling(profile, &rb))
return VPX_CODEC_UNSUP_BITSTREAM;
}
rb.bit_offset += REF_FRAMES; // refresh_frame_flags
vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
}
}
}
if (is_intra_only != NULL) *is_intra_only = intra_only_flag;
return VPX_CODEC_OK;
}
static vpx_codec_err_t decoder_peek_si(const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si) {
return decoder_peek_si_internal(data, data_sz, si, NULL, NULL, NULL);
}
static vpx_codec_err_t decoder_get_si(vpx_codec_alg_priv_t *ctx,
vpx_codec_stream_info_t *si) {
const size_t sz = (si->sz >= sizeof(vp9_stream_info_t))
? sizeof(vp9_stream_info_t)
: sizeof(vpx_codec_stream_info_t);
memcpy(si, &ctx->si, sz);
si->sz = (unsigned int)sz;
return VPX_CODEC_OK;
}
static void set_error_detail(vpx_codec_alg_priv_t *ctx,
const char *const error) {
ctx->base.err_detail = error;
}
static vpx_codec_err_t update_error_state(
vpx_codec_alg_priv_t *ctx, const struct vpx_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(vpx_codec_alg_priv_t *ctx) {
int i;
for (i = 0; i < ctx->num_frame_workers; ++i) {
VPxWorker *const worker = &ctx->frame_workers[i];
FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
VP9_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 = vp9_get_frame_buffer;
pool->release_fb_cb = vp9_release_frame_buffer;
if (vp9_alloc_internal_frame_buffers(&pool->int_frame_buffers))
vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
"Failed to initialize internal frame buffers");
pool->cb_priv = &pool->int_frame_buffers;
}
}
}
static void set_default_ppflags(vp8_postproc_cfg_t *cfg) {
cfg->post_proc_flag = VP8_DEBLOCK | VP8_DEMACROBLOCK;
cfg->deblocking_level = 4;
cfg->noise_level = 0;
}
static void set_ppflags(const vpx_codec_alg_priv_t *ctx, vp9_ppflags_t *flags) {
flags->post_proc_flag = ctx->postproc_cfg.post_proc_flag;
flags->deblocking_level = ctx->postproc_cfg.deblocking_level;
flags->noise_level = ctx->postproc_cfg.noise_level;
}
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 = vp9_receive_compressed_data(
frame_worker_data->pbi, frame_worker_data->data_size, &data);
frame_worker_data->data_end = data;
if (frame_worker_data->pbi->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) {
VPxWorker *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.
vp9_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;
vp9_frameworker_signal_stats(worker);
vp9_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 vpx_codec_err_t init_decoder(vpx_codec_alg_priv_t *ctx) {
int i;
const VPxWorkerInterface *const winterface = vpx_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 *)vpx_calloc(1, sizeof(BufferPool));
if (ctx->buffer_pool == NULL) return VPX_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 VPX_CODEC_MEM_ERROR;
}
#endif
ctx->frame_workers = (VPxWorker *)vpx_malloc(ctx->num_frame_workers *
sizeof(*ctx->frame_workers));
if (ctx->frame_workers == NULL) {
set_error_detail(ctx, "Failed to allocate frame_workers");
return VPX_CODEC_MEM_ERROR;
}
for (i = 0; i < ctx->num_frame_workers; ++i) {
VPxWorker *const worker = &ctx->frame_workers[i];
FrameWorkerData *frame_worker_data = NULL;
winterface->init(worker);
worker->data1 = vpx_memalign(32, sizeof(FrameWorkerData));
if (worker->data1 == NULL) {
set_error_detail(ctx, "Failed to allocate frame_worker_data");
return VPX_CODEC_MEM_ERROR;
}
frame_worker_data = (FrameWorkerData *)worker->data1;
frame_worker_data->pbi = vp9_decoder_create(ctx->buffer_pool);
if (frame_worker_data->pbi == NULL) {
set_error_detail(ctx, "Failed to allocate frame_worker_data");
return VPX_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 VPX_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 VPX_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->frame_parallel_decode = ctx->frame_parallel_decode;
frame_worker_data->pbi->common.frame_parallel_decode =
ctx->frame_parallel_decode;
worker->hook = (VPxWorkerHook)frame_worker_hook;
if (!winterface->reset(worker)) {
set_error_detail(ctx, "Frame Worker thread creation failed");
return VPX_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 & VPX_CODEC_USE_POSTPROC))
set_default_ppflags(&ctx->postproc_cfg);
init_buffer_callbacks(ctx);
return VPX_CODEC_OK;
}
static INLINE void check_resync(vpx_codec_alg_priv_t *const ctx,
const VP9Decoder *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 vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx,
const uint8_t **data, unsigned int data_sz,
void *user_priv, int64_t deadline) {
const VPxWorkerInterface *const winterface = vpx_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 vpx_codec_err_t res =
decoder_peek_si_internal(*data, data_sz, &ctx->si, &is_intra_only,
ctx->decrypt_cb, ctx->decrypt_state);
if (res != VPX_CODEC_OK) return res;
if (!ctx->si.is_kf && !is_intra_only) return VPX_CODEC_ERROR;
}
if (!ctx->frame_parallel_decode) {
VPxWorker *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;
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 {
VPxWorker *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)
vp9_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) {
frame_worker_data->scratch_buffer =
(uint8_t *)vpx_realloc(frame_worker_data->scratch_buffer, data_sz);
if (frame_worker_data->scratch_buffer == NULL) {
set_error_detail(ctx, "Failed to reallocate scratch buffer");
return VPX_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 VPX_CODEC_OK;
}
static void wait_worker_and_cache_frame(vpx_codec_alg_priv_t *ctx) {
YV12_BUFFER_CONFIG sd;
vp9_ppflags_t flags = { 0, 0, 0 };
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
VPxWorker *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 (vp9_get_raw_frame(frame_worker_data->pbi, &sd, &flags) == 0) {
VP9_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 vpx_codec_err_t decoder_decode(vpx_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;
vpx_codec_err_t res;
uint32_t frame_sizes[8];
int frame_count;
if (data == NULL && data_sz == 0) {
ctx->flushed = 1;
return VPX_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) {
const vpx_codec_err_t res = init_decoder(ctx);
if (res != VPX_CODEC_OK) return res;
}
res = vp9_parse_superframe_index(data, data_sz, frame_sizes, &frame_count,
ctx->decrypt_cb, ctx->decrypt_state);
if (res != VPX_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 VPX_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 VPX_CODEC_ERROR;
}
}
res =
decode_one(ctx, &data_start_copy, frame_size, user_priv, deadline);
if (res != VPX_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 VPX_CODEC_ERROR;
}
}
res = decode_one(ctx, &data, data_sz, user_priv, deadline);
if (res != VPX_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];
vpx_codec_err_t res;
if (data_start < data ||
frame_size > (uint32_t)(data_end - data_start)) {
set_error_detail(ctx, "Invalid frame size in index");
return VPX_CODEC_CORRUPT_FRAME;
}
res =
decode_one(ctx, &data_start_copy, frame_size, user_priv, deadline);
if (res != VPX_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);
const vpx_codec_err_t res =
decode_one(ctx, &data_start, frame_size, user_priv, deadline);
if (res != VPX_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(vpx_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 vpx_image_t *decoder_get_frame(vpx_codec_alg_priv_t *ctx,
vpx_codec_iter_t *iter) {
vpx_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;
vp9_ppflags_t flags = { 0, 0, 0 };
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
VPxWorker *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;
if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
set_ppflags(ctx, &flags);
// 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 (vp9_get_raw_frame(frame_worker_data->pbi, &sd, &flags) == 0) {
VP9_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);
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 vpx_codec_err_t decoder_set_fb_fn(
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) {
if (cb_get == NULL || cb_release == NULL) {
return VPX_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 VPX_CODEC_OK;
}
return VPX_CODEC_ERROR;
}
static vpx_codec_err_t ctrl_set_reference(vpx_codec_alg_priv_t *ctx,
va_list args) {
vpx_ref_frame_t *const data = va_arg(args, vpx_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 VPX_CODEC_INCAPABLE;
}
if (data) {
vpx_ref_frame_t *const frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
image2yuvconfig(&frame->img, &sd);
return vp9_set_reference_dec(&frame_worker_data->pbi->common,
ref_frame_to_vp9_reframe(frame->frame_type),
&sd);
} else {
return VPX_CODEC_INVALID_PARAM;
}
}
static vpx_codec_err_t ctrl_copy_reference(vpx_codec_alg_priv_t *ctx,
va_list args) {
vpx_ref_frame_t *data = va_arg(args, vpx_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 VPX_CODEC_INCAPABLE;
}
if (data) {
vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
YV12_BUFFER_CONFIG sd;
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
image2yuvconfig(&frame->img, &sd);
return vp9_copy_reference_dec(frame_worker_data->pbi,
(VP9_REFFRAME)frame->frame_type, &sd);
} else {
return VPX_CODEC_INVALID_PARAM;
}
}
static vpx_codec_err_t ctrl_get_reference(vpx_codec_alg_priv_t *ctx,
va_list args) {
vp9_ref_frame_t *data = va_arg(args, vp9_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 VPX_CODEC_INCAPABLE;
}
if (data) {
YV12_BUFFER_CONFIG *fb;
VPxWorker *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 VPX_CODEC_ERROR;
yuvconfig2image(&data->img, fb, NULL);
return VPX_CODEC_OK;
} else {
return VPX_CODEC_INVALID_PARAM;
}
}
static vpx_codec_err_t ctrl_set_postproc(vpx_codec_alg_priv_t *ctx,
va_list args) {
#if CONFIG_VP9_POSTPROC
vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
if (data) {
ctx->postproc_cfg_set = 1;
ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
return VPX_CODEC_OK;
} else {
return VPX_CODEC_INVALID_PARAM;
}
#else
(void)ctx;
(void)args;
return VPX_CODEC_INCAPABLE;
#endif
}
static vpx_codec_err_t ctrl_get_last_ref_updates(vpx_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 VPX_CODEC_INCAPABLE;
}
if (update_info) {
if (ctx->frame_workers) {
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data =
(FrameWorkerData *)worker->data1;
*update_info = frame_worker_data->pbi->refresh_frame_flags;
return VPX_CODEC_OK;
} else {
return VPX_CODEC_ERROR;
}
}
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t ctrl_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
va_list args) {
int *corrupted = va_arg(args, int *);
if (corrupted) {
if (ctx->frame_workers) {
VPxWorker *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 VPX_CODEC_ERROR;
if (ctx->last_show_frame >= 0)
*corrupted = frame_bufs[ctx->last_show_frame].buf.corrupted;
return VPX_CODEC_OK;
} else {
return VPX_CODEC_ERROR;
}
}
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t ctrl_get_frame_size(vpx_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 VPX_CODEC_INCAPABLE;
}
if (frame_size) {
if (ctx->frame_workers) {
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data =
(FrameWorkerData *)worker->data1;
const VP9_COMMON *const cm = &frame_worker_data->pbi->common;
frame_size[0] = cm->width;
frame_size[1] = cm->height;
return VPX_CODEC_OK;
} else {
return VPX_CODEC_ERROR;
}
}
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t ctrl_get_render_size(vpx_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 VPX_CODEC_INCAPABLE;
}
if (render_size) {
if (ctx->frame_workers) {
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data =
(FrameWorkerData *)worker->data1;
const VP9_COMMON *const cm = &frame_worker_data->pbi->common;
render_size[0] = cm->render_width;
render_size[1] = cm->render_height;
return VPX_CODEC_OK;
} else {
return VPX_CODEC_ERROR;
}
}
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t ctrl_get_bit_depth(vpx_codec_alg_priv_t *ctx,
va_list args) {
unsigned int *const bit_depth = va_arg(args, unsigned int *);
VPxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
if (bit_depth) {
if (worker) {
FrameWorkerData *const frame_worker_data =
(FrameWorkerData *)worker->data1;
const VP9_COMMON *const cm = &frame_worker_data->pbi->common;
*bit_depth = cm->bit_depth;
return VPX_CODEC_OK;
} else {
return VPX_CODEC_ERROR;
}
}
return VPX_CODEC_INVALID_PARAM;
}
static vpx_codec_err_t ctrl_set_invert_tile_order(vpx_codec_alg_priv_t *ctx,
va_list args) {
ctx->invert_tile_order = va_arg(args, int);
return VPX_CODEC_OK;
}
static vpx_codec_err_t ctrl_set_decryptor(vpx_codec_alg_priv_t *ctx,
va_list args) {
vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *);
ctx->decrypt_cb = init ? init->decrypt_cb : NULL;
ctx->decrypt_state = init ? init->decrypt_state : NULL;
return VPX_CODEC_OK;
}
static vpx_codec_err_t ctrl_set_byte_alignment(vpx_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 VPX_CODEC_INVALID_PARAM;
ctx->byte_alignment = byte_alignment;
if (ctx->frame_workers) {
VPxWorker *const worker = ctx->frame_workers;
FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
frame_worker_data->pbi->common.byte_alignment = byte_alignment;
}
return VPX_CODEC_OK;
}
static vpx_codec_err_t ctrl_set_skip_loop_filter(vpx_codec_alg_priv_t *ctx,
va_list args) {
ctx->skip_loop_filter = va_arg(args, int);
if (ctx->frame_workers) {
VPxWorker *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 VPX_CODEC_OK;
}
static vpx_codec_ctrl_fn_map_t decoder_ctrl_maps[] = {
{ VP8_COPY_REFERENCE, ctrl_copy_reference },
// Setters
{ VP8_SET_REFERENCE, ctrl_set_reference },
{ VP8_SET_POSTPROC, ctrl_set_postproc },
{ VP9_INVERT_TILE_DECODE_ORDER, ctrl_set_invert_tile_order },
{ VPXD_SET_DECRYPTOR, ctrl_set_decryptor },
{ VP9_SET_BYTE_ALIGNMENT, ctrl_set_byte_alignment },
{ VP9_SET_SKIP_LOOP_FILTER, ctrl_set_skip_loop_filter },
// Getters
{ VP8D_GET_LAST_REF_UPDATES, ctrl_get_last_ref_updates },
{ VP8D_GET_FRAME_CORRUPTED, ctrl_get_frame_corrupted },
{ VP9_GET_REFERENCE, ctrl_get_reference },
{ VP9D_GET_DISPLAY_SIZE, ctrl_get_render_size },
{ VP9D_GET_BIT_DEPTH, ctrl_get_bit_depth },
{ VP9D_GET_FRAME_SIZE, ctrl_get_frame_size },
{ -1, NULL },
};
#ifndef VERSION_STRING
#define VERSION_STRING
#endif
CODEC_INTERFACE(vpx_codec_vp9_dx) = {
"WebM Project VP9 Decoder" VERSION_STRING,
VPX_CODEC_INTERNAL_ABI_VERSION,
VPX_CODEC_CAP_DECODER | VP9_CAP_POSTPROC |
VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER, // vpx_codec_caps_t
decoder_init, // vpx_codec_init_fn_t
decoder_destroy, // vpx_codec_destroy_fn_t
decoder_ctrl_maps, // vpx_codec_ctrl_fn_map_t
{
// NOLINT
decoder_peek_si, // vpx_codec_peek_si_fn_t
decoder_get_si, // vpx_codec_get_si_fn_t
decoder_decode, // vpx_codec_decode_fn_t
decoder_get_frame, // vpx_codec_frame_get_fn_t
decoder_set_fb_fn, // vpx_codec_set_fb_fn_t
},
{
// NOLINT
0,
NULL, // vpx_codec_enc_cfg_map_t
NULL, // vpx_codec_encode_fn_t
NULL, // vpx_codec_get_cx_data_fn_t
NULL, // vpx_codec_enc_config_set_fn_t
NULL, // vpx_codec_get_global_headers_fn_t
NULL, // vpx_codec_get_preview_frame_fn_t
NULL // vpx_codec_enc_mr_get_mem_loc_fn_t
}
};