[FFmpeg-devel] [PATCH] avformat/mpegtsenc: added support for the write_data_type callback

[Oliver Collyer]

[Apols for sending this again, but I realised the subject didn't describe the change, which was unhelpful)

This patch makes it possible to do stuff like write a custom in-memory TS segmenter, which was what I needed it for.

> Hi
> 
> I needed to be able to use the write_data_type callback when reading data from the mpegts muxer, to make my application aware of key frames in the data so I added support. I used the matroska implementation as a reference.
> 
> If this is accepted, I will format this as a proper patch after feedback.
> 
> Regards
> 
> Oliver
> 
> diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
> index fc0ea225c6..e5d1a64b4c 100644
> --- a/libavformat/mpegtsenc.c
> +++ b/libavformat/mpegtsenc.c
> @@ -1815,6 +1815,12 @@ static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
>        mpegts_write_flush(s);
>        return 1;
>    } else {
> +        if (s->pb && s->pb->write_data_type) {
> +            AVStream *st = s->streams[pkt->stream_index];
> +            avio_write_marker(s->pb,
> +                av_rescale_q(pkt->dts, st->time_base, AV_TIME_BASE_Q),
> +                (pkt->flags & AV_PKT_FLAG_KEY) && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
> +        }
>        return mpegts_write_packet_internal(s, pkt);
>    }
> }
> 

So I've created a patch for this.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-mpegtsenc-added-support-for-the-write_data_type-call.patch
Type: application/octet-stream
Size: 1161 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20190308/fc9e425c/attachment.obj>