void vp10_setup_past_independence(VP10_COMMON *cm) { // Reset the segment feature data to the default stats: // Features disabled, 0, with delta coding (Default state). struct loopfilter *const lf = &cm->lf; int i; vp10_clearall_segfeatures(&cm->seg); cm->seg.abs_delta = SEGMENT_DELTADATA; if (cm->last_frame_seg_map && !cm->frame_parallel_decode) memset(cm->last_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols)); if (cm->current_frame_seg_map) memset(cm->current_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols)); // Reset the mode ref deltas for loop filter vp10_zero(lf->last_ref_deltas); vp10_zero(lf->last_mode_deltas); set_default_lf_deltas(lf); // To force update of the sharpness lf->last_sharpness_level = -1; vp10_default_coef_probs(cm); init_mode_probs(cm->fc); vp10_init_mv_probs(cm); cm->fc->initialized = 1; if (cm->frame_type == KEY_FRAME || cm->error_resilient_mode || cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL) { // Reset all frame contexts. for (i = 0; i < FRAME_CONTEXTS; ++i) cm->frame_contexts[i] = *cm->fc; } else if (cm->reset_frame_context == RESET_FRAME_CONTEXT_CURRENT) { // Reset only the frame context specified in the frame header. cm->frame_contexts[cm->frame_context_idx] = *cm->fc; } // prev_mip will only be allocated in encoder. if (frame_is_intra_only(cm) && cm->prev_mip && !cm->frame_parallel_decode) memset(cm->prev_mip, 0, cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->prev_mip)); cm->frame_context_idx = 0; }
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; }
void vp10_clearall_segfeatures(struct segmentation *seg) { vp10_zero(seg->feature_data); vp10_zero(seg->feature_mask); }
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); } } }