Quoting Martin Storsjö (2014-11-04 15:38:10)
> From: Michael Niedermayer <[email protected]>
> 
> ---
>  libavformat/mux.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/libavformat/mux.c b/libavformat/mux.c
> index 94b4391..f4c6e40 100644
> --- a/libavformat/mux.c
> +++ b/libavformat/mux.c
> @@ -342,6 +342,14 @@ static int write_packet(AVFormatContext *s, AVPacket 
> *pkt)
>              pkt->dts += offset;
>          if (pkt->pts != AV_NOPTS_VALUE)
>              pkt->pts += offset;
> +
> +        if (pkt->dts != AV_NOPTS_VALUE && pkt->dts < 0) {
> +            av_log(s, AV_LOG_WARNING,
> +                   "Packets poorly interleaved, failed to avoid negative "
> +                   "timestamp %"PRId64" in stream %d.\n"
> +                   "Try -max_interleave_delta 0 as a possible workaround.\n",
> +                   pkt->dts, pkt->stream_index);
> +        }
>      }
>      ret = s->oformat->write_packet(s, pkt);
>  
> -- 
> 1.9.3 (Apple Git-50)
> 

Won't the caller already get a warning/error about non-monotonous DTS
in this case?

-- 
Anton Khirnov
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