void vp9_decoder_remove(VP9Decoder *pbi) {
int i;
if (!pbi) return;
vpx_get_worker_interface()->end(&pbi->lf_worker);
vpx_free(pbi->lf_worker.data1);
for (i = 0; i < pbi->num_tile_workers; ++i) {
VPxWorker *const worker = &pbi->tile_workers[i];
vpx_get_worker_interface()->end(worker);
}
vpx_free(pbi->tile_worker_data);
vpx_free(pbi->tile_workers);
if (pbi->num_tile_workers > 0) {
vp9_loop_filter_dealloc(&pbi->lf_row_sync);
}
if (pbi->row_mt == 1) {
vp9_dec_free_row_mt_mem(pbi->row_mt_worker_data);
if (pbi->row_mt_worker_data != NULL) {
vp9_jobq_deinit(&pbi->row_mt_worker_data->jobq);
vpx_free(pbi->row_mt_worker_data->jobq_buf);
#if CONFIG_MULTITHREAD
pthread_mutex_destroy(&pbi->row_mt_worker_data->recon_done_mutex);
#endif
}
vpx_free(pbi->row_mt_worker_data);
}
vp9_remove_common(&pbi->common);
vpx_free(pbi);
}
static vpx_codec_err_t decoder_destroy(vpx_codec_alg_priv_t *ctx) {
if (ctx->frame_workers != NULL) {
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;
vpx_get_worker_interface()->end(worker);
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 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 void create_enc_workers(VP9_COMP *cpi, int num_workers) {
VP9_COMMON *const cm = &cpi->common;
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
int i;
// Only run once to create threads and allocate thread data.
if (cpi->num_workers == 0) {
int allocated_workers = num_workers;
// While using SVC, we need to allocate threads according to the highest
// resolution. When row based multithreading is enabled, it is OK to
// allocate more threads than the number of max tile columns.
if (cpi->use_svc && !cpi->row_mt) {
int max_tile_cols = get_max_tile_cols(cpi);
allocated_workers = VPXMIN(cpi->oxcf.max_threads, max_tile_cols);
}
CHECK_MEM_ERROR(cm, cpi->workers,
vpx_malloc(allocated_workers * sizeof(*cpi->workers)));
CHECK_MEM_ERROR(cm, cpi->tile_thr_data,
vpx_calloc(allocated_workers, sizeof(*cpi->tile_thr_data)));
for (i = 0; i < allocated_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *thread_data = &cpi->tile_thr_data[i];
++cpi->num_workers;
winterface->init(worker);
if (i < allocated_workers - 1) {
thread_data->cpi = cpi;
// Allocate thread data.
CHECK_MEM_ERROR(cm, thread_data->td,
vpx_memalign(32, sizeof(*thread_data->td)));
vp9_zero(*thread_data->td);
// Set up pc_tree.
thread_data->td->leaf_tree = NULL;
thread_data->td->pc_tree = NULL;
vp9_setup_pc_tree(cm, thread_data->td);
// Allocate frame counters in thread data.
CHECK_MEM_ERROR(cm, thread_data->td->counts,
vpx_calloc(1, sizeof(*thread_data->td->counts)));
// Create threads
if (!winterface->reset(worker))
vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
"Tile encoder thread creation failed");
} else {
// Main thread acts as a worker and uses the thread data in cpi.
thread_data->cpi = cpi;
thread_data->td = &cpi->td;
}
winterface->sync(worker);
}
}
}
static void launch_enc_workers(VP9_COMP *cpi, VPxWorkerHook hook, void *data2,
int num_workers) {
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
int i;
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
worker->hook = hook;
worker->data1 = &cpi->tile_thr_data[i];
worker->data2 = data2;
}
// Encode a frame
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
// Set the starting tile for each thread.
thread_data->start = i;
if (i == cpi->num_workers - 1)
winterface->execute(worker);
else
winterface->launch(worker);
}
// Encoding ends.
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
winterface->sync(worker);
}
}
static void loop_filter_rows_mt(YV12_BUFFER_CONFIG *frame,
VP10_COMMON *cm,
struct macroblockd_plane planes[MAX_MB_PLANE],
int start, int stop, int y_only,
VPxWorker *workers, int nworkers,
VP9LfSync *lf_sync) {
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
// Number of superblock rows and cols
const int sb_rows = mi_cols_aligned_to_sb(cm->mi_rows) >> MI_BLOCK_SIZE_LOG2;
// Decoder may allocate more threads than number of tiles based on user's
// input.
const int tile_cols = 1 << cm->log2_tile_cols;
const int num_workers = VPXMIN(nworkers, tile_cols);
int i;
if (!lf_sync->sync_range || sb_rows != lf_sync->rows ||
num_workers > lf_sync->num_workers) {
vp10_loop_filter_dealloc(lf_sync);
vp10_loop_filter_alloc(lf_sync, cm, sb_rows, cm->width, num_workers);
}
// Initialize cur_sb_col to -1 for all SB rows.
memset(lf_sync->cur_sb_col, -1, sizeof(*lf_sync->cur_sb_col) * sb_rows);
// Set up loopfilter thread data.
// The decoder is capping num_workers because it has been observed that using
// more threads on the loopfilter than there are cores will hurt performance
// on Android. This is because the system will only schedule the tile decode
// workers on cores equal to the number of tile columns. Then if the decoder
// tries to use more threads for the loopfilter, it will hurt performance
// because of contention. If the multithreading code changes in the future
// then the number of workers used by the loopfilter should be revisited.
for (i = 0; i < num_workers; ++i) {
VPxWorker *const worker = &workers[i];
LFWorkerData *const lf_data = &lf_sync->lfdata[i];
worker->hook = (VPxWorkerHook)loop_filter_row_worker;
worker->data1 = lf_sync;
worker->data2 = lf_data;
// Loopfilter data
vp10_loop_filter_data_reset(lf_data, frame, cm, planes);
lf_data->start = start + i * MI_BLOCK_SIZE;
lf_data->stop = stop;
lf_data->y_only = y_only;
// Start loopfiltering
if (i == num_workers - 1) {
winterface->execute(worker);
} else {
winterface->launch(worker);
}
}
// Wait till all rows are finished
for (i = 0; i < num_workers; ++i) {
winterface->sync(&workers[i]);
}
}
void vp9_decoder_remove(VP9Decoder *pbi) {
int i;
vpx_get_worker_interface()->end(&pbi->lf_worker);
vpx_free(pbi->lf_worker.data1);
vpx_free(pbi->tile_data);
for (i = 0; i < pbi->num_tile_workers; ++i) {
VPxWorker *const worker = &pbi->tile_workers[i];
vpx_get_worker_interface()->end(worker);
}
vpx_free(pbi->tile_worker_data);
vpx_free(pbi->tile_workers);
if (pbi->num_tile_workers > 0) {
vp9_loop_filter_dealloc(&pbi->lf_row_sync);
}
vpx_free(pbi);
}
VP10Decoder *vp10_decoder_create(BufferPool *const pool) {
VP10Decoder *volatile const pbi = vpx_memalign(32, sizeof(*pbi));
VP10_COMMON *volatile const cm = pbi ? &pbi->common : NULL;
if (!cm)
return NULL;
vp10_zero(*pbi);
if (setjmp(cm->error.jmp)) {
cm->error.setjmp = 0;
vp10_decoder_remove(pbi);
return NULL;
}
cm->error.setjmp = 1;
CHECK_MEM_ERROR(cm, cm->fc,
(FRAME_CONTEXT *)vpx_calloc(1, sizeof(*cm->fc)));
CHECK_MEM_ERROR(cm, cm->frame_contexts,
(FRAME_CONTEXT *)vpx_calloc(FRAME_CONTEXTS,
sizeof(*cm->frame_contexts)));
pbi->need_resync = 1;
once(initialize_dec);
// Initialize the references to not point to any frame buffers.
memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
memset(&cm->next_ref_frame_map, -1, sizeof(cm->next_ref_frame_map));
cm->current_video_frame = 0;
pbi->ready_for_new_data = 1;
pbi->common.buffer_pool = pool;
cm->bit_depth = VPX_BITS_8;
cm->dequant_bit_depth = VPX_BITS_8;
cm->alloc_mi = vp10_dec_alloc_mi;
cm->free_mi = vp10_dec_free_mi;
cm->setup_mi = vp10_dec_setup_mi;
vp10_loop_filter_init(cm);
cm->error.setjmp = 0;
vpx_get_worker_interface()->init(&pbi->lf_worker);
return pbi;
}
static void release_fb_on_decoder_exit(VP9Decoder *pbi) {
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
VP9_COMMON *volatile const cm = &pbi->common;
BufferPool *volatile const pool = cm->buffer_pool;
RefCntBuffer *volatile const frame_bufs = cm->buffer_pool->frame_bufs;
int i;
// Synchronize all threads immediately as a subsequent decode call may
// cause a resize invalidating some allocations.
winterface->sync(&pbi->lf_worker);
for (i = 0; i < pbi->num_tile_workers; ++i) {
winterface->sync(&pbi->tile_workers[i]);
}
// Release all the reference buffers if worker thread is holding them.
if (pbi->hold_ref_buf == 1) {
int ref_index = 0, mask;
for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
const int old_idx = cm->ref_frame_map[ref_index];
// Current thread releases the holding of reference frame.
decrease_ref_count(old_idx, frame_bufs, pool);
// Release the reference frame in reference map.
if (mask & 1) {
decrease_ref_count(old_idx, frame_bufs, pool);
}
++ref_index;
}
// Current thread releases the holding of reference frame.
for (; ref_index < REF_FRAMES && !cm->show_existing_frame; ++ref_index) {
const int old_idx = cm->ref_frame_map[ref_index];
decrease_ref_count(old_idx, frame_bufs, pool);
}
pbi->hold_ref_buf = 0;
}
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 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 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;
}
int vp10_receive_compressed_data(VP10Decoder *pbi,
size_t size, const uint8_t **psource) {
VP10_COMMON *volatile const cm = &pbi->common;
BufferPool *volatile const pool = cm->buffer_pool;
RefCntBuffer *volatile const frame_bufs = cm->buffer_pool->frame_bufs;
const uint8_t *source = *psource;
int retcode = 0;
cm->error.error_code = VPX_CODEC_OK;
if (size == 0) {
// This is used to signal that we are missing frames.
// We do not know if the missing frame(s) was supposed to update
// any of the reference buffers, but we act conservative and
// mark only the last buffer as corrupted.
//
// TODO(jkoleszar): Error concealment is undefined and non-normative
// at this point, but if it becomes so, [0] may not always be the correct
// thing to do here.
if (cm->frame_refs[0].idx > 0) {
assert(cm->frame_refs[0].buf != NULL);
cm->frame_refs[0].buf->corrupted = 1;
}
}
pbi->ready_for_new_data = 0;
// Check if the previous frame was a frame without any references to it.
// Release frame buffer if not decoding in frame parallel mode.
if (!pbi->frame_parallel_decode && cm->new_fb_idx >= 0
&& frame_bufs[cm->new_fb_idx].ref_count == 0)
pool->release_fb_cb(pool->cb_priv,
&frame_bufs[cm->new_fb_idx].raw_frame_buffer);
// Find a free frame buffer. Return error if can not find any.
cm->new_fb_idx = get_free_fb(cm);
if (cm->new_fb_idx == INVALID_IDX)
return VPX_CODEC_MEM_ERROR;
// Assign a MV array to the frame buffer.
cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];
pbi->hold_ref_buf = 0;
if (pbi->frame_parallel_decode) {
VPxWorker *const worker = pbi->frame_worker_owner;
vp10_frameworker_lock_stats(worker);
frame_bufs[cm->new_fb_idx].frame_worker_owner = worker;
// Reset decoding progress.
pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
pbi->cur_buf->row = -1;
pbi->cur_buf->col = -1;
vp10_frameworker_unlock_stats(worker);
} else {
pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
}
if (setjmp(cm->error.jmp)) {
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
int i;
cm->error.setjmp = 0;
pbi->ready_for_new_data = 1;
// Synchronize all threads immediately as a subsequent decode call may
// cause a resize invalidating some allocations.
winterface->sync(&pbi->lf_worker);
for (i = 0; i < pbi->num_tile_workers; ++i) {
winterface->sync(&pbi->tile_workers[i]);
}
lock_buffer_pool(pool);
// Release all the reference buffers if worker thread is holding them.
if (pbi->hold_ref_buf == 1) {
int ref_index = 0, mask;
for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
const int old_idx = cm->ref_frame_map[ref_index];
// Current thread releases the holding of reference frame.
decrease_ref_count(old_idx, frame_bufs, pool);
// Release the reference frame in reference map.
if ((mask & 1) && old_idx >= 0) {
decrease_ref_count(old_idx, frame_bufs, pool);
}
++ref_index;
}
// Current thread releases the holding of reference frame.
for (; ref_index < REF_FRAMES && !cm->show_existing_frame; ++ref_index) {
const int old_idx = cm->ref_frame_map[ref_index];
decrease_ref_count(old_idx, frame_bufs, pool);
}
pbi->hold_ref_buf = 0;
}
// Release current frame.
decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
unlock_buffer_pool(pool);
vpx_clear_system_state();
return -1;
}
void vp10_encode_tiles_mt(VP10_COMP *cpi) {
VP10_COMMON *const cm = &cpi->common;
const int tile_cols = 1 << cm->log2_tile_cols;
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
const int num_workers = VPXMIN(cpi->oxcf.max_threads, tile_cols);
int i;
vp10_init_tile_data(cpi);
// Only run once to create threads and allocate thread data.
if (cpi->num_workers == 0) {
int allocated_workers = num_workers;
CHECK_MEM_ERROR(cm, cpi->workers,
vpx_malloc(allocated_workers * sizeof(*cpi->workers)));
CHECK_MEM_ERROR(cm, cpi->tile_thr_data,
vpx_calloc(allocated_workers,
sizeof(*cpi->tile_thr_data)));
for (i = 0; i < allocated_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *thread_data = &cpi->tile_thr_data[i];
++cpi->num_workers;
winterface->init(worker);
if (i < allocated_workers - 1) {
thread_data->cpi = cpi;
// Allocate thread data.
CHECK_MEM_ERROR(cm, thread_data->td,
vpx_memalign(32, sizeof(*thread_data->td)));
vp10_zero(*thread_data->td);
// Set up pc_tree.
thread_data->td->leaf_tree = NULL;
thread_data->td->pc_tree = NULL;
vp10_setup_pc_tree(cm, thread_data->td);
// Allocate frame counters in thread data.
CHECK_MEM_ERROR(cm, thread_data->td->counts,
vpx_calloc(1, sizeof(*thread_data->td->counts)));
// Create threads
if (!winterface->reset(worker))
vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
"Tile encoder thread creation failed");
} else {
// Main thread acts as a worker and uses the thread data in cpi.
thread_data->cpi = cpi;
thread_data->td = &cpi->td;
}
winterface->sync(worker);
}
}
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *thread_data;
worker->hook = (VPxWorkerHook)enc_worker_hook;
worker->data1 = &cpi->tile_thr_data[i];
worker->data2 = NULL;
thread_data = (EncWorkerData*)worker->data1;
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
thread_data->td->rd_counts = cpi->td.rd_counts;
}
if (thread_data->td->counts != &cpi->common.counts) {
memcpy(thread_data->td->counts, &cpi->common.counts,
sizeof(cpi->common.counts));
}
}
// Encode a frame
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
// Set the starting tile for each thread.
thread_data->start = i;
if (i == cpi->num_workers - 1)
winterface->execute(worker);
else
winterface->launch(worker);
}
// Encoding ends.
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
winterface->sync(worker);
}
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
// Accumulate counters.
if (i < cpi->num_workers - 1) {
vp10_accumulate_frame_counts(cm, thread_data->td->counts, 0);
accumulate_rd_opt(&cpi->td, thread_data->td);
}
}
}
void vp9_encode_tiles_mt(VP9_COMP *cpi) {
VP9_COMMON *const cm = &cpi->common;
const int tile_cols = 1 << cm->log2_tile_cols;
const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
const int num_workers = VPXMIN(cpi->oxcf.max_threads, tile_cols);
int i;
vp9_init_tile_data(cpi);
// Only run once to create threads and allocate thread data.
if (cpi->num_workers == 0) {
int allocated_workers = num_workers;
// While using SVC, we need to allocate threads according to the highest
// resolution.
if (cpi->use_svc) {
int max_tile_cols = get_max_tile_cols(cpi);
allocated_workers = VPXMIN(cpi->oxcf.max_threads, max_tile_cols);
}
CHECK_MEM_ERROR(cm, cpi->workers,
vpx_malloc(allocated_workers * sizeof(*cpi->workers)));
CHECK_MEM_ERROR(cm, cpi->tile_thr_data,
vpx_calloc(allocated_workers,
sizeof(*cpi->tile_thr_data)));
for (i = 0; i < allocated_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *thread_data = &cpi->tile_thr_data[i];
++cpi->num_workers;
winterface->init(worker);
if (i < allocated_workers - 1) {
thread_data->cpi = cpi;
// Allocate thread data.
CHECK_MEM_ERROR(cm, thread_data->td,
vpx_memalign(32, sizeof(*thread_data->td)));
vp9_zero(*thread_data->td);
// Set up pc_tree.
thread_data->td->leaf_tree = NULL;
thread_data->td->pc_tree = NULL;
vp9_setup_pc_tree(cm, thread_data->td);
// Allocate frame counters in thread data.
CHECK_MEM_ERROR(cm, thread_data->td->counts,
vpx_calloc(1, sizeof(*thread_data->td->counts)));
// Create threads
if (!winterface->reset(worker))
vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
"Tile encoder thread creation failed");
} else {
// Main thread acts as a worker and uses the thread data in cpi.
thread_data->cpi = cpi;
thread_data->td = &cpi->td;
}
winterface->sync(worker);
}
}
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *thread_data;
worker->hook = (VPxWorkerHook)enc_worker_hook;
worker->data1 = &cpi->tile_thr_data[i];
worker->data2 = NULL;
thread_data = (EncWorkerData*)worker->data1;
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
thread_data->td->rd_counts = cpi->td.rd_counts;
}
if (thread_data->td->counts != &cpi->common.counts) {
memcpy(thread_data->td->counts, &cpi->common.counts,
sizeof(cpi->common.counts));
}
// Handle use_nonrd_pick_mode case.
if (cpi->sf.use_nonrd_pick_mode) {
MACROBLOCK *const x = &thread_data->td->mb;
MACROBLOCKD *const xd = &x->e_mbd;
struct macroblock_plane *const p = x->plane;
struct macroblockd_plane *const pd = xd->plane;
PICK_MODE_CONTEXT *ctx = &thread_data->td->pc_root->none;
int j;
for (j = 0; j < MAX_MB_PLANE; ++j) {
p[j].coeff = ctx->coeff_pbuf[j][0];
p[j].qcoeff = ctx->qcoeff_pbuf[j][0];
pd[j].dqcoeff = ctx->dqcoeff_pbuf[j][0];
p[j].eobs = ctx->eobs_pbuf[j][0];
}
}
}
// Encode a frame
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
// Set the starting tile for each thread.
thread_data->start = i;
if (i == cpi->num_workers - 1)
winterface->execute(worker);
else
winterface->launch(worker);
}
// Encoding ends.
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
winterface->sync(worker);
}
for (i = 0; i < num_workers; i++) {
VPxWorker *const worker = &cpi->workers[i];
EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
// Accumulate counters.
if (i < cpi->num_workers - 1) {
vp9_accumulate_frame_counts(cm, thread_data->td->counts, 0);
accumulate_rd_opt(&cpi->td, thread_data->td);
}
}
}
