[Libav-user] Approx. 15 seconds delay when re-streaming h.264 to RTMP

[Archil Matchavariani]

Can you give me any advise how can I avoid it ?

On Wed, Nov 2, 2011 at 5:00 PM, Andrey Utkin <andrey.krieger.utkin at gmail.com
> wrote:

> 2011/11/2 Archil Matchavariani <archil1983 at gmail.com>:
> > HI Andrey,
> > I am trying to re-streaming my input stream from a cam to the rtmp
> server ,
> > and I want to use FFmpeg for this issue, that's why I am using the
> following
> > command :
> > ffmpeg -i rtsp://root:pass@xxx.xxx.xxx.xxx:554/live?tcp -vcodec copy -f
> flv
> > rtmp://xxx.xxx.xxx.xxx/live/teststream
> > (I need flesh format )
> > but unfortunately it hangs at first and than it has delay about 15
> > seconds.(rtsp://root:pass@xxx.xxx.xxx.xxx:554/live?tcp is an input
> stream
> > from my cam and rtmp://xxx.xxx.xxx.xxx/live/teststream are output streams
> > from the rtmp server )
>
> This delay is likely caused by initial stream probing.
> ffmpeg detects data format and codecs, which is quite unnecessary in
> case or RTSP, which brings this info in session description.
> I'm not sure if it acts how i described, but it likely does.
>
> --
> Andrey Utkin
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