Function reget_buffer_internal

libavcodec/decode.c:1827–1867

}

static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
{
    AVFrame *tmp;
    int ret;

    av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);

    // make sure the discard flag does not persist
    frame->flags &= ~AV_FRAME_FLAG_DISCARD;

    if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
        av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
               frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
        av_frame_unref(frame);
    }

    if (!frame->data[0])
        return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);

    av_frame_side_data_free(&frame->side_data, &frame->nb_side_data);

    if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
        return ff_decode_frame_props(avctx, frame);

    tmp = av_frame_alloc();
    if (!tmp)
        return AVERROR(ENOMEM);

    av_frame_move_ref(tmp, frame);

    ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
    if (ret < 0) {
        av_frame_free(&tmp);
        return ret;
    }

    av_frame_copy(frame, tmp);
    av_frame_free(&tmp);

    return 0;
}

int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
{