> 2021年12月30日 下午3:24，zourenyi <zozobr...@163.com> 写道：
>
> since there is only debug log 'no picture ooo' when droping a picture,
> I spent much time to troubleshooting a wrong sps 'num_reorder_frames' param
> changed by webrtc's 'ParseAndRewriteSps',
> FFmpeg keeped silence about this error, so a warning log is much helpfull
> about this.
>
> Signed-off-by: zourenyi <zozobr...@163.com>
> ---
> libavcodec/h264_slice.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
> index c21004df97..f347d8ee1a 100644
> --- a/libavcodec/h264_slice.c
> +++ b/libavcodec/h264_slice.c
> @@ -1533,7 +1533,13 @@ static int h264_select_output_frame(H264Context *h)
> }
> }
> } else {
> - av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ?
> "ooo" : "");
> + if (out_of_order) {
> + av_log(h->avctx, AV_LOG_WARNING,
> + "drop picture(%c, %d/%" PRId64 ") because out of order\n",
> + av_get_picture_type_char(out->f->pict_type), out->poc,
> out->f->pts);
> + } else {
> + av_log(h->avctx, AV_LOG_DEBUG, "no picture\n");
> + }
> }
>
> return 0;
> --
> 2.34.1
>
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lgtm
Thanks
Steven Liu
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