Function ff_decode_frame_props

libavcodec/decode.c:1573–1616

}

int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
{
    int ret;

    ret = side_data_map(frame, avctx->coded_side_data, avctx->nb_coded_side_data,
                        ff_sd_global_map);
    if (ret < 0)
        return ret;

    for (int i = 0; i < avctx->nb_decoded_side_data; i++) {
        const AVFrameSideData *src = avctx->decoded_side_data[i];
        if (av_frame_get_side_data(frame, src->type))
            continue;
        ret = av_frame_side_data_clone(&frame->side_data, &frame->nb_side_data, src, 0);
        if (ret < 0)
            return ret;
    }

    if (!(ffcodec(avctx->codec)->caps_internal & FF_CODEC_CAP_SETS_FRAME_PROPS)) {
        const AVPacket *pkt = avctx->internal->last_pkt_props;

        ret = ff_decode_frame_props_from_pkt(avctx, frame, pkt);
        if (ret < 0)
            return ret;
    }

    ret = fill_frame_props(avctx, frame);
    if (ret < 0)
        return ret;

    switch (avctx->codec->type) {
    case AVMEDIA_TYPE_VIDEO:
        if (frame->width && frame->height &&
            av_image_check_sar(frame->width, frame->height,
                               frame->sample_aspect_ratio) < 0) {
            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
                   frame->sample_aspect_ratio.num,
                   frame->sample_aspect_ratio.den);
            frame->sample_aspect_ratio = (AVRational){ 0, 1 };
        }
        break;
    }
    return 0;
}

static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
{