Function decode_receive_frame_internal

libavcodec/decode.c:650–709

}

static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame,
                                         unsigned flags)
{
    AVCodecInternal *avci = avctx->internal;
    DecodeContext     *dc = decode_ctx(avci);
    int ret, ok;

    if (avctx->active_thread_type & FF_THREAD_FRAME)
        ret = ff_thread_receive_frame(avctx, frame, flags);
    else
        ret = ff_decode_receive_frame_internal(avctx, frame);

    /* preserve ret */
    ok = detect_colorspace(avctx, frame);
    if (ok < 0) {
        av_frame_unref(frame);
        return ok;
    }

    if (!ret) {
        if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
            if (!frame->width)
                frame->width = avctx->width;
            if (!frame->height)
                frame->height = avctx->height;
        }

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

        frame->best_effort_timestamp = guess_correct_pts(dc,
                                                         frame->pts,
                                                         frame->pkt_dts);

        /* the only case where decode data is not set should be decoders
         * that do not call ff_get_buffer() */
        av_assert0(frame->private_ref ||
                   !(avctx->codec->capabilities & AV_CODEC_CAP_DR1));

        if (frame->private_ref) {
            FrameDecodeData *fdd = frame->private_ref;

            if (fdd->post_process) {
                ret = fdd->post_process(avctx, frame);
                if (ret < 0) {
                    av_frame_unref(frame);
                    return ret;
                }
            }
        }
    }

    /* free the per-frame decode data */
    av_refstruct_unref(&frame->private_ref);