521 lines
14 KiB
C
521 lines
14 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vp8/common/onyxc_int.h"
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#if CONFIG_POSTPROC
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#include "vp8/common/postproc.h"
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#endif
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#include "vp8/common/onyxd.h"
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#include "onyxd_int.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vp8/common/alloccommon.h"
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#include "vp8/common/loopfilter.h"
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#include "vp8/common/swapyv12buffer.h"
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#include "vp8/common/threading.h"
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#include "decoderthreading.h"
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#include <stdio.h>
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#include <assert.h>
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#include "vp8/common/quant_common.h"
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#include "vp8/common/reconintra.h"
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#include "./vpx_dsp_rtcd.h"
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#include "./vpx_scale_rtcd.h"
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#include "vpx_scale/vpx_scale.h"
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#include "vp8/common/systemdependent.h"
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#include "vpx_ports/vpx_once.h"
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#include "vpx_ports/vpx_timer.h"
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#include "detokenize.h"
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#if CONFIG_ERROR_CONCEALMENT
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#include "error_concealment.h"
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#endif
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#if ARCH_ARM
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#include "vpx_ports/arm.h"
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#endif
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extern void vp8_init_loop_filter(VP8_COMMON *cm);
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extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi);
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static int get_free_fb (VP8_COMMON *cm);
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static void ref_cnt_fb (int *buf, int *idx, int new_idx);
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static void initialize_dec(void) {
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static volatile int init_done = 0;
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if (!init_done)
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{
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vpx_dsp_rtcd();
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vp8_init_intra_predictors();
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init_done = 1;
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}
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}
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static void remove_decompressor(VP8D_COMP *pbi)
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{
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#if CONFIG_ERROR_CONCEALMENT
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vp8_de_alloc_overlap_lists(pbi);
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#endif
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vp8_remove_common(&pbi->common);
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vpx_free(pbi);
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}
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static struct VP8D_COMP * create_decompressor(VP8D_CONFIG *oxcf)
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{
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VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
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if (!pbi)
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return NULL;
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memset(pbi, 0, sizeof(VP8D_COMP));
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if (setjmp(pbi->common.error.jmp))
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{
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pbi->common.error.setjmp = 0;
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remove_decompressor(pbi);
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return 0;
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}
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pbi->common.error.setjmp = 1;
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vp8_create_common(&pbi->common);
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pbi->common.current_video_frame = 0;
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pbi->ready_for_new_data = 1;
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/* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid
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* unnecessary calling of vp8cx_init_de_quantizer() for every frame.
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*/
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vp8cx_init_de_quantizer(pbi);
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vp8_loop_filter_init(&pbi->common);
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pbi->common.error.setjmp = 0;
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#if CONFIG_ERROR_CONCEALMENT
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pbi->ec_enabled = oxcf->error_concealment;
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pbi->overlaps = NULL;
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#else
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(void)oxcf;
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pbi->ec_enabled = 0;
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#endif
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/* Error concealment is activated after a key frame has been
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* decoded without errors when error concealment is enabled.
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*/
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pbi->ec_active = 0;
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pbi->decoded_key_frame = 0;
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/* Independent partitions is activated when a frame updates the
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* token probability table to have equal probabilities over the
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* PREV_COEF context.
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*/
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pbi->independent_partitions = 0;
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vp8_setup_block_dptrs(&pbi->mb);
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once(initialize_dec);
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return pbi;
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}
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vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
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{
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VP8_COMMON *cm = &pbi->common;
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int ref_fb_idx;
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if (ref_frame_flag == VP8_LAST_FRAME)
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ref_fb_idx = cm->lst_fb_idx;
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else if (ref_frame_flag == VP8_GOLD_FRAME)
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ref_fb_idx = cm->gld_fb_idx;
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else if (ref_frame_flag == VP8_ALTR_FRAME)
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ref_fb_idx = cm->alt_fb_idx;
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else{
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vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
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"Invalid reference frame");
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return pbi->common.error.error_code;
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}
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if(cm->yv12_fb[ref_fb_idx].y_height != sd->y_height ||
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cm->yv12_fb[ref_fb_idx].y_width != sd->y_width ||
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cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height ||
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cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width){
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vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
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"Incorrect buffer dimensions");
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}
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else
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vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
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return pbi->common.error.error_code;
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}
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vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
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{
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VP8_COMMON *cm = &pbi->common;
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int *ref_fb_ptr = NULL;
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int free_fb;
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if (ref_frame_flag == VP8_LAST_FRAME)
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ref_fb_ptr = &cm->lst_fb_idx;
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else if (ref_frame_flag == VP8_GOLD_FRAME)
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ref_fb_ptr = &cm->gld_fb_idx;
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else if (ref_frame_flag == VP8_ALTR_FRAME)
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ref_fb_ptr = &cm->alt_fb_idx;
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else{
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vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
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"Invalid reference frame");
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return pbi->common.error.error_code;
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}
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if(cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height ||
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cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width ||
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cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height ||
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cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width){
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vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
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"Incorrect buffer dimensions");
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}
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else{
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/* Find an empty frame buffer. */
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free_fb = get_free_fb(cm);
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/* Decrease fb_idx_ref_cnt since it will be increased again in
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* ref_cnt_fb() below. */
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cm->fb_idx_ref_cnt[free_fb]--;
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/* Manage the reference counters and copy image. */
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ref_cnt_fb (cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb);
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vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]);
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}
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return pbi->common.error.error_code;
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}
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static int get_free_fb (VP8_COMMON *cm)
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{
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int i;
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for (i = 0; i < NUM_YV12_BUFFERS; i++)
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if (cm->fb_idx_ref_cnt[i] == 0)
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break;
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assert(i < NUM_YV12_BUFFERS);
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cm->fb_idx_ref_cnt[i] = 1;
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return i;
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}
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static void ref_cnt_fb (int *buf, int *idx, int new_idx)
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{
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if (buf[*idx] > 0)
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buf[*idx]--;
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*idx = new_idx;
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buf[new_idx]++;
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}
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/* If any buffer copy / swapping is signalled it should be done here. */
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static int swap_frame_buffers (VP8_COMMON *cm)
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{
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int err = 0;
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/* The alternate reference frame or golden frame can be updated
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* using the new, last, or golden/alt ref frame. If it
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* is updated using the newly decoded frame it is a refresh.
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* An update using the last or golden/alt ref frame is a copy.
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*/
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if (cm->copy_buffer_to_arf)
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{
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int new_fb = 0;
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if (cm->copy_buffer_to_arf == 1)
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new_fb = cm->lst_fb_idx;
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else if (cm->copy_buffer_to_arf == 2)
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new_fb = cm->gld_fb_idx;
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else
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err = -1;
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ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
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}
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if (cm->copy_buffer_to_gf)
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{
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int new_fb = 0;
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if (cm->copy_buffer_to_gf == 1)
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new_fb = cm->lst_fb_idx;
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else if (cm->copy_buffer_to_gf == 2)
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new_fb = cm->alt_fb_idx;
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else
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err = -1;
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ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
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}
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if (cm->refresh_golden_frame)
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ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
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if (cm->refresh_alt_ref_frame)
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ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx);
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if (cm->refresh_last_frame)
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{
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ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx);
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cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx];
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}
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else
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cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
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cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
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return err;
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}
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static int check_fragments_for_errors(VP8D_COMP *pbi)
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{
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if (!pbi->ec_active &&
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pbi->fragments.count <= 1 && pbi->fragments.sizes[0] == 0)
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{
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VP8_COMMON *cm = &pbi->common;
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/* If error concealment is disabled we won't signal missing frames
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* to the decoder.
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*/
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if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1)
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{
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/* The last reference shares buffer with another reference
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* buffer. Move it to its own buffer before setting it as
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* corrupt, otherwise we will make multiple buffers corrupt.
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*/
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const int prev_idx = cm->lst_fb_idx;
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cm->fb_idx_ref_cnt[prev_idx]--;
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cm->lst_fb_idx = get_free_fb(cm);
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vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx],
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&cm->yv12_fb[cm->lst_fb_idx]);
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}
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/* This is used to signal that we are missing frames.
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* We do not know if the missing frame(s) was supposed to update
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* any of the reference buffers, but we act conservative and
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* mark only the last buffer as corrupted.
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*/
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cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
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/* Signal that we have no frame to show. */
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cm->show_frame = 0;
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/* Nothing more to do. */
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return 0;
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}
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return 1;
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}
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int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size,
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const uint8_t *source,
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int64_t time_stamp)
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{
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VP8_COMMON *cm = &pbi->common;
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int retcode = -1;
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(void)size;
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(void)source;
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pbi->common.error.error_code = VPX_CODEC_OK;
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retcode = check_fragments_for_errors(pbi);
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if(retcode <= 0)
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return retcode;
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cm->new_fb_idx = get_free_fb (cm);
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/* setup reference frames for vp8_decode_frame */
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pbi->dec_fb_ref[INTRA_FRAME] = &cm->yv12_fb[cm->new_fb_idx];
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pbi->dec_fb_ref[LAST_FRAME] = &cm->yv12_fb[cm->lst_fb_idx];
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pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx];
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pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx];
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if (setjmp(pbi->common.error.jmp))
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{
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/* We do not know if the missing frame(s) was supposed to update
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* any of the reference buffers, but we act conservative and
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* mark only the last buffer as corrupted.
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*/
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cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
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if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
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cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
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goto decode_exit;
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}
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pbi->common.error.setjmp = 1;
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retcode = vp8_decode_frame(pbi);
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if (retcode < 0)
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{
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if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
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cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
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pbi->common.error.error_code = VPX_CODEC_ERROR;
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goto decode_exit;
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}
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if (swap_frame_buffers (cm))
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{
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pbi->common.error.error_code = VPX_CODEC_ERROR;
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goto decode_exit;
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}
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vp8_clear_system_state();
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if (cm->show_frame)
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{
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cm->current_video_frame++;
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cm->show_frame_mi = cm->mi;
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}
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#if CONFIG_ERROR_CONCEALMENT
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/* swap the mode infos to storage for future error concealment */
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if (pbi->ec_enabled && pbi->common.prev_mi)
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{
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MODE_INFO* tmp = pbi->common.prev_mi;
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int row, col;
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pbi->common.prev_mi = pbi->common.mi;
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pbi->common.mi = tmp;
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/* Propagate the segment_ids to the next frame */
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for (row = 0; row < pbi->common.mb_rows; ++row)
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{
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for (col = 0; col < pbi->common.mb_cols; ++col)
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{
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const int i = row*pbi->common.mode_info_stride + col;
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pbi->common.mi[i].mbmi.segment_id =
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pbi->common.prev_mi[i].mbmi.segment_id;
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}
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}
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}
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#endif
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pbi->ready_for_new_data = 0;
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pbi->last_time_stamp = time_stamp;
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decode_exit:
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pbi->common.error.setjmp = 0;
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vp8_clear_system_state();
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return retcode;
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}
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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)
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{
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int ret = -1;
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if (pbi->ready_for_new_data == 1)
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return ret;
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/* ie no raw frame to show!!! */
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if (pbi->common.show_frame == 0)
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return ret;
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pbi->ready_for_new_data = 1;
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*time_stamp = pbi->last_time_stamp;
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*time_end_stamp = 0;
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#if CONFIG_POSTPROC
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ret = vp8_post_proc_frame(&pbi->common, sd, flags);
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#else
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(void)flags;
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if (pbi->common.frame_to_show)
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{
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*sd = *pbi->common.frame_to_show;
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sd->y_width = pbi->common.Width;
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sd->y_height = pbi->common.Height;
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sd->uv_height = pbi->common.Height / 2;
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ret = 0;
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}
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else
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{
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ret = -1;
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}
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#endif /*!CONFIG_POSTPROC*/
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vp8_clear_system_state();
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return ret;
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}
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/* This function as written isn't decoder specific, but the encoder has
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* much faster ways of computing this, so it's ok for it to live in a
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* decode specific file.
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*/
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int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame )
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{
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const MODE_INFO *mi = oci->mi;
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int mb_row, mb_col;
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for (mb_row = 0; mb_row < oci->mb_rows; mb_row++)
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{
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for (mb_col = 0; mb_col < oci->mb_cols; mb_col++,mi++)
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{
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if( mi->mbmi.ref_frame == ref_frame)
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return 1;
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}
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mi++;
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}
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return 0;
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}
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int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf)
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{
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if(!fb->use_frame_threads)
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{
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/* decoder instance for single thread mode */
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fb->pbi[0] = create_decompressor(oxcf);
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if(!fb->pbi[0])
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return VPX_CODEC_ERROR;
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#if CONFIG_MULTITHREAD
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/* enable row-based threading only when use_frame_threads
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* is disabled */
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fb->pbi[0]->max_threads = oxcf->max_threads;
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vp8_decoder_create_threads(fb->pbi[0]);
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#endif
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}
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else
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{
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/* TODO : create frame threads and decoder instances for each
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* thread here */
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}
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return VPX_CODEC_OK;
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}
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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;
|
|
}
|