ref: 8366b414dd73a298d22910574c9e988865ac0e12
dir: /vp8/decoder/onyxd_if.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 "vp8/common/onyxc_int.h" #if CONFIG_POSTPROC #include "vp8/common/postproc.h" #endif #include "vp8/common/onyxd.h" #include "onyxd_int.h" #include "vpx_mem/vpx_mem.h" #include "vp8/common/alloccommon.h" #include "vp8/common/loopfilter.h" #include "vp8/common/swapyv12buffer.h" #include "vp8/common/threading.h" #include "decoderthreading.h" #include <stdio.h> #include <assert.h> #include "vp8/common/quant_common.h" #include "vp8/common/reconintra.h" #include "./vpx_dsp_rtcd.h" #include "./vpx_scale_rtcd.h" #include "vpx_scale/vpx_scale.h" #include "vp8/common/systemdependent.h" #include "vpx_ports/vpx_once.h" #include "vpx_ports/vpx_timer.h" #include "detokenize.h" #if CONFIG_ERROR_CONCEALMENT #include "error_concealment.h" #endif #if ARCH_ARM #include "vpx_ports/arm.h" #endif extern void vp8_init_loop_filter(VP8_COMMON *cm); extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi); static int get_free_fb (VP8_COMMON *cm); static void ref_cnt_fb (int *buf, int *idx, int new_idx); static void initialize_dec(void) { static volatile int init_done = 0; if (!init_done) { vpx_dsp_rtcd(); vp8_init_intra_predictors(); init_done = 1; } } static void remove_decompressor(VP8D_COMP *pbi) { #if CONFIG_ERROR_CONCEALMENT vp8_de_alloc_overlap_lists(pbi); #endif vp8_remove_common(&pbi->common); vpx_free(pbi); } static struct VP8D_COMP * create_decompressor(VP8D_CONFIG *oxcf) { VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP)); if (!pbi) return NULL; memset(pbi, 0, sizeof(VP8D_COMP)); if (setjmp(pbi->common.error.jmp)) { pbi->common.error.setjmp = 0; remove_decompressor(pbi); return 0; } pbi->common.error.setjmp = 1; vp8_create_common(&pbi->common); pbi->common.current_video_frame = 0; pbi->ready_for_new_data = 1; /* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid * unnecessary calling of vp8cx_init_de_quantizer() for every frame. */ vp8cx_init_de_quantizer(pbi); vp8_loop_filter_init(&pbi->common); pbi->common.error.setjmp = 0; #if CONFIG_ERROR_CONCEALMENT pbi->ec_enabled = oxcf->error_concealment; pbi->overlaps = NULL; #else (void)oxcf; pbi->ec_enabled = 0; #endif /* Error concealment is activated after a key frame has been * decoded without errors when error concealment is enabled. */ pbi->ec_active = 0; pbi->decoded_key_frame = 0; /* Independent partitions is activated when a frame updates the * token probability table to have equal probabilities over the * PREV_COEF context. */ pbi->independent_partitions = 0; vp8_setup_block_dptrs(&pbi->mb); once(initialize_dec); return pbi; } vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd) { VP8_COMMON *cm = &pbi->common; int ref_fb_idx; if (ref_frame_flag == VP8_LAST_FRAME) ref_fb_idx = cm->lst_fb_idx; else if (ref_frame_flag == VP8_GOLD_FRAME) ref_fb_idx = cm->gld_fb_idx; else if (ref_frame_flag == VP8_ALTR_FRAME) ref_fb_idx = cm->alt_fb_idx; else{ vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, "Invalid reference frame"); return pbi->common.error.error_code; } if(cm->yv12_fb[ref_fb_idx].y_height != sd->y_height || cm->yv12_fb[ref_fb_idx].y_width != sd->y_width || cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height || cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width){ vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, "Incorrect buffer dimensions"); } else vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd); return pbi->common.error.error_code; } vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd) { VP8_COMMON *cm = &pbi->common; int *ref_fb_ptr = NULL; int free_fb; if (ref_frame_flag == VP8_LAST_FRAME) ref_fb_ptr = &cm->lst_fb_idx; else if (ref_frame_flag == VP8_GOLD_FRAME) ref_fb_ptr = &cm->gld_fb_idx; else if (ref_frame_flag == VP8_ALTR_FRAME) ref_fb_ptr = &cm->alt_fb_idx; else{ vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, "Invalid reference frame"); return pbi->common.error.error_code; } if(cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height || cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width || cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height || cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width){ vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, "Incorrect buffer dimensions"); } else{ /* Find an empty frame buffer. */ free_fb = get_free_fb(cm); /* Decrease fb_idx_ref_cnt since it will be increased again in * ref_cnt_fb() below. */ cm->fb_idx_ref_cnt[free_fb]--; /* Manage the reference counters and copy image. */ ref_cnt_fb (cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb); vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]); } return pbi->common.error.error_code; } static int get_free_fb (VP8_COMMON *cm) { int i; for (i = 0; i < NUM_YV12_BUFFERS; i++) if (cm->fb_idx_ref_cnt[i] == 0) break; assert(i < NUM_YV12_BUFFERS); cm->fb_idx_ref_cnt[i] = 1; return i; } static void ref_cnt_fb (int *buf, int *idx, int new_idx) { if (buf[*idx] > 0) buf[*idx]--; *idx = new_idx; buf[new_idx]++; } /* If any buffer copy / swapping is signalled it should be done here. */ static int swap_frame_buffers (VP8_COMMON *cm) { int err = 0; /* The alternate reference frame or golden frame can be updated * using the new, last, or golden/alt ref frame. If it * is updated using the newly decoded frame it is a refresh. * An update using the last or golden/alt ref frame is a copy. */ if (cm->copy_buffer_to_arf) { int new_fb = 0; if (cm->copy_buffer_to_arf == 1) new_fb = cm->lst_fb_idx; else if (cm->copy_buffer_to_arf == 2) new_fb = cm->gld_fb_idx; else err = -1; ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb); } if (cm->copy_buffer_to_gf) { int new_fb = 0; if (cm->copy_buffer_to_gf == 1) new_fb = cm->lst_fb_idx; else if (cm->copy_buffer_to_gf == 2) new_fb = cm->alt_fb_idx; else err = -1; ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb); } if (cm->refresh_golden_frame) ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx); if (cm->refresh_alt_ref_frame) ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx); if (cm->refresh_last_frame) { ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx); cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx]; } else cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx]; cm->fb_idx_ref_cnt[cm->new_fb_idx]--; return err; } static int check_fragments_for_errors(VP8D_COMP *pbi) { if (!pbi->ec_active && pbi->fragments.count <= 1 && pbi->fragments.sizes[0] == 0) { VP8_COMMON *cm = &pbi->common; /* If error concealment is disabled we won't signal missing frames * to the decoder. */ if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1) { /* The last reference shares buffer with another reference * buffer. Move it to its own buffer before setting it as * corrupt, otherwise we will make multiple buffers corrupt. */ const int prev_idx = cm->lst_fb_idx; cm->fb_idx_ref_cnt[prev_idx]--; cm->lst_fb_idx = get_free_fb(cm); vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx], &cm->yv12_fb[cm->lst_fb_idx]); } /* 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. */ cm->yv12_fb[cm->lst_fb_idx].corrupted = 1; /* Signal that we have no frame to show. */ cm->show_frame = 0; /* Nothing more to do. */ return 0; } return 1; } int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size, const uint8_t *source, int64_t time_stamp) { VP8_COMMON *cm = &pbi->common; int retcode = -1; (void)size; (void)source; pbi->common.error.error_code = VPX_CODEC_OK; retcode = check_fragments_for_errors(pbi); if(retcode <= 0) return retcode; cm->new_fb_idx = get_free_fb (cm); /* setup reference frames for vp8_decode_frame */ pbi->dec_fb_ref[INTRA_FRAME] = &cm->yv12_fb[cm->new_fb_idx]; pbi->dec_fb_ref[LAST_FRAME] = &cm->yv12_fb[cm->lst_fb_idx]; pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx]; pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx]; if (setjmp(pbi->common.error.jmp)) { /* 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. */ cm->yv12_fb[cm->lst_fb_idx].corrupted = 1; if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) cm->fb_idx_ref_cnt[cm->new_fb_idx]--; goto decode_exit; } pbi->common.error.setjmp = 1; retcode = vp8_decode_frame(pbi); if (retcode < 0) { if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) cm->fb_idx_ref_cnt[cm->new_fb_idx]--; pbi->common.error.error_code = VPX_CODEC_ERROR; goto decode_exit; } if (swap_frame_buffers (cm)) { pbi->common.error.error_code = VPX_CODEC_ERROR; goto decode_exit; } vp8_clear_system_state(); if (cm->show_frame) { cm->current_video_frame++; cm->show_frame_mi = cm->mi; } #if CONFIG_ERROR_CONCEALMENT /* swap the mode infos to storage for future error concealment */ if (pbi->ec_enabled && pbi->common.prev_mi) { MODE_INFO* tmp = pbi->common.prev_mi; int row, col; pbi->common.prev_mi = pbi->common.mi; pbi->common.mi = tmp; /* Propagate the segment_ids to the next frame */ for (row = 0; row < pbi->common.mb_rows; ++row) { for (col = 0; col < pbi->common.mb_cols; ++col) { const int i = row*pbi->common.mode_info_stride + col; pbi->common.mi[i].mbmi.segment_id = pbi->common.prev_mi[i].mbmi.segment_id; } } } #endif pbi->ready_for_new_data = 0; pbi->last_time_stamp = time_stamp; decode_exit: pbi->common.error.setjmp = 0; vp8_clear_system_state(); return retcode; } int vp8dx_get_raw_frame(VP8D_COMP *pbi, YV12_BUFFER_CONFIG *sd, int64_t *time_stamp, int64_t *time_end_stamp, vp8_ppflags_t *flags) { int ret = -1; if (pbi->ready_for_new_data == 1) return ret; /* ie no raw frame to show!!! */ if (pbi->common.show_frame == 0) return ret; pbi->ready_for_new_data = 1; *time_stamp = pbi->last_time_stamp; *time_end_stamp = 0; #if CONFIG_POSTPROC ret = vp8_post_proc_frame(&pbi->common, sd, flags); #else (void)flags; if (pbi->common.frame_to_show) { *sd = *pbi->common.frame_to_show; sd->y_width = pbi->common.Width; sd->y_height = pbi->common.Height; sd->uv_height = pbi->common.Height / 2; ret = 0; } else { ret = -1; } #endif /*!CONFIG_POSTPROC*/ vp8_clear_system_state(); return ret; } /* This function as written isn't decoder specific, but the encoder has * much faster ways of computing this, so it's ok for it to live in a * decode specific file. */ int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame ) { const MODE_INFO *mi = oci->mi; int mb_row, mb_col; for (mb_row = 0; mb_row < oci->mb_rows; mb_row++) { for (mb_col = 0; mb_col < oci->mb_cols; mb_col++,mi++) { if( mi->mbmi.ref_frame == ref_frame) return 1; } mi++; } return 0; } int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf) { if(!fb->use_frame_threads) { /* decoder instance for single thread mode */ fb->pbi[0] = create_decompressor(oxcf); if(!fb->pbi[0]) return VPX_CODEC_ERROR; #if CONFIG_MULTITHREAD /* enable row-based threading only when use_frame_threads * is disabled */ fb->pbi[0]->max_threads = oxcf->max_threads; vp8_decoder_create_threads(fb->pbi[0]); #endif } else { /* TODO : create frame threads and decoder instances for each * thread here */ } return VPX_CODEC_OK; } int vp8_remove_decoder_instances(struct frame_buffers *fb) { if(!fb->use_frame_threads) { VP8D_COMP *pbi = fb->pbi[0]; if (!pbi) return VPX_CODEC_ERROR; #if CONFIG_MULTITHREAD if (pbi->b_multithreaded_rd) vp8mt_de_alloc_temp_buffers(pbi, pbi->common.mb_rows); vp8_decoder_remove_threads(pbi); #endif /* decoder instance for single thread mode */ remove_decompressor(pbi); } else { /* TODO : remove frame threads and decoder instances for each * thread here */ } return VPX_CODEC_OK; }