int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, const AVPacket *avpkt) { AVCodecInternal *avci = avctx->internal; int ret; // copy to ensure we do not change avpkt AVPacket tmp = *avpkt; if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); } *got_picture_ptr = 0; if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) avcodec_get_frame_defaults(picture); if (!avctx->refcounted_frames) av_frame_unref(&avci->to_free); if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { int did_split = av_packet_split_side_data(&tmp); apply_param_change(avctx, &tmp); avctx->pkt = &tmp; if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, &tmp); else { ret = avctx->codec->decode(avctx, picture, got_picture_ptr, &tmp); picture->pkt_dts = avpkt->dts; if(!avctx->has_b_frames){ av_frame_set_pkt_pos(picture, avpkt->pos); } //FIXME these should be under if(!avctx->has_b_frames) /* get_buffer is supposed to set frame parameters */ if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) { if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; if (!picture->width) picture->width = avctx->width; if (!picture->height) picture->height = avctx->height; if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; } } add_metadata_from_side_data(avctx, picture); emms_c(); //needed to avoid an emms_c() call before every return; avctx->pkt = NULL; if (did_split) { ff_packet_free_side_data(&tmp); if(ret == tmp.size) ret = avpkt->size; } if (ret < 0 && picture->data[0]) av_frame_unref(picture); if (*got_picture_ptr) { if (!avctx->refcounted_frames) { avci->to_free = *picture; avci->to_free.extended_data = avci->to_free.data; memset(picture->buf, 0, sizeof(picture->buf)); } avctx->frame_number++; av_frame_set_best_effort_timestamp(picture, guess_correct_pts(avctx, picture->pkt_pts, picture->pkt_dts)); } } else ret = 0; /* many decoders assign whole AVFrames, thus overwriting extended_data; * make sure it's set correctly */ picture->extended_data = picture->data; return ret; }