static int rv10_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; MpegEncContext *s = avctx->priv_data; int i; AVFrame *pict = data; int slice_count; const uint8_t *slices_hdr = NULL; #ifdef DEBUG av_log(avctx, AV_LOG_DEBUG, "*****frame %d size=%d\n", avctx->frame_number, buf_size); #endif /* no supplementary picture */ if (buf_size == 0) { return 0; } if(!avctx->slice_count){ slice_count = (*buf++) + 1; slices_hdr = buf + 4; buf += 8 * slice_count; }else slice_count = avctx->slice_count; for(i=0; i<slice_count; i++){ int offset= get_slice_offset(avctx, slices_hdr, i); int size; if(i+1 == slice_count) size= buf_size - offset; else size= get_slice_offset(avctx, slices_hdr, i+1) - offset; rv10_decode_packet(avctx, buf+offset, size); } if(s->current_picture_ptr != NULL && s->mb_y>=s->mb_height){ ff_er_frame_end(s); MPV_frame_end(s); if (s->pict_type == FF_B_TYPE || s->low_delay) { *pict= *(AVFrame*)s->current_picture_ptr; } else if (s->last_picture_ptr != NULL) { *pict= *(AVFrame*)s->last_picture_ptr; } if(s->last_picture_ptr || s->low_delay){ *data_size = sizeof(AVFrame); ff_print_debug_info(s, pict); } s->current_picture_ptr= NULL; //so we can detect if frame_end wasnt called (find some nicer solution...) } return buf_size; }
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup) { AVCodecContext *const avctx = h->avctx; int err = 0; h->mb_y = 0; if (!in_setup && !h->droppable) ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, h->picture_structure == PICT_BOTTOM_FIELD); if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) { if (!h->droppable) { err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); h->prev_poc_msb = h->poc_msb; h->prev_poc_lsb = h->poc_lsb; } h->prev_frame_num_offset = h->frame_num_offset; h->prev_frame_num = h->frame_num; h->outputed_poc = h->next_outputed_poc; } if (avctx->hwaccel) { if (avctx->hwaccel->end_frame(avctx) < 0) av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n"); } #if CONFIG_ERROR_RESILIENCE /* * FIXME: Error handling code does not seem to support interlaced * when slices span multiple rows * The ff_er_add_slice calls don't work right for bottom * fields; they cause massive erroneous error concealing * Error marking covers both fields (top and bottom). * This causes a mismatched s->error_count * and a bad error table. Further, the error count goes to * INT_MAX when called for bottom field, because mb_y is * past end by one (callers fault) and resync_mb_y != 0 * causes problems for the first MB line, too. */ if (!FIELD_PICTURE(h) && h->enable_er) { h264_set_erpic(&sl->er.cur_pic, h->cur_pic_ptr); h264_set_erpic(&sl->er.last_pic, sl->ref_count[0] ? sl->ref_list[0][0].parent : NULL); h264_set_erpic(&sl->er.next_pic, sl->ref_count[1] ? sl->ref_list[1][0].parent : NULL); ff_er_frame_end(&sl->er); } #endif /* CONFIG_ERROR_RESILIENCE */ emms_c(); h->current_slice = 0; return err; }
static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf, int buf_size) { MpegEncContext *s = avctx->priv_data; int mb_count, mb_pos, left, start_mb_x; init_get_bits(&s->gb, buf, buf_size*8); if(s->codec_id ==CODEC_ID_RV10) mb_count = rv10_decode_picture_header(s); else mb_count = rv20_decode_picture_header(s); if (mb_count < 0) { av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n"); return -1; } if (s->mb_x >= s->mb_width || s->mb_y >= s->mb_height) { av_log(s->avctx, AV_LOG_ERROR, "POS ERROR %d %d\n", s->mb_x, s->mb_y); return -1; } mb_pos = s->mb_y * s->mb_width + s->mb_x; left = s->mb_width * s->mb_height - mb_pos; if (mb_count > left) { av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n"); return -1; } //if(s->pict_type == FF_P_TYPE) return 0; if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) { if(s->current_picture_ptr){ //FIXME write parser so we always have complete frames? ff_er_frame_end(s); MPV_frame_end(s); s->mb_x= s->mb_y = s->resync_mb_x = s->resync_mb_y= 0; } if(MPV_frame_start(s, avctx) < 0) return -1; ff_er_frame_start(s); } #ifdef DEBUG av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale); #endif /* default quantization values */ if(s->codec_id== CODEC_ID_RV10){ if(s->mb_y==0) s->first_slice_line=1; }else{ s->first_slice_line=1; s->resync_mb_x= s->mb_x; } start_mb_x= s->mb_x; s->resync_mb_y= s->mb_y; if(s->h263_aic){ s->y_dc_scale_table= s->c_dc_scale_table= ff_aic_dc_scale_table; }else{ s->y_dc_scale_table= s->c_dc_scale_table= ff_mpeg1_dc_scale_table; } if(s->modified_quant) s->chroma_qscale_table= ff_h263_chroma_qscale_table; ff_set_qscale(s, s->qscale); s->rv10_first_dc_coded[0] = 0; s->rv10_first_dc_coded[1] = 0; s->rv10_first_dc_coded[2] = 0; //printf("%d %X %X\n", s->pict_type, s->current_picture.motion_val[0], s->current_picture.motion_val[1]); s->block_wrap[0]= s->block_wrap[1]= s->block_wrap[2]= s->block_wrap[3]= s->b8_stride; s->block_wrap[4]= s->block_wrap[5]= s->mb_stride; ff_init_block_index(s); /* decode each macroblock */ for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) { int ret; ff_update_block_index(s); #ifdef DEBUG av_log(avctx, AV_LOG_DEBUG, "**mb x=%d y=%d\n", s->mb_x, s->mb_y); #endif s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; ret=ff_h263_decode_mb(s, s->block); if (ret == SLICE_ERROR || s->gb.size_in_bits < get_bits_count(&s->gb)) { av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y); return -1; } if(s->pict_type != FF_B_TYPE) ff_h263_update_motion_val(s); MPV_decode_mb(s, s->block); if(s->loop_filter) ff_h263_loop_filter(s); if (++s->mb_x == s->mb_width) { s->mb_x = 0; s->mb_y++; ff_init_block_index(s); } if(s->mb_x == s->resync_mb_x) s->first_slice_line=0; if(ret == SLICE_END) break; } ff_er_add_slice(s, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END); return buf_size; }