[FFmpeg-devel] RTP input stream blocks ffmpeg

Luca Abeni lucabe72
Thu Sep 20 09:33:35 CEST 2007


I believe this question belongs to ffmpeg-users, anyway:

Yohann Martineau wrote:
> I'm trying to transcode a video stream sent over RTP from h263 to 
> mpeg2video, and to forward this transcoded stream over RTP.

AFAIK, ffmpeg does not support receiving h.263 in RTP (support for the 
h.263 payload is not implemented).

> The following command gets stuck:
> $ ffmpeg.exe -i rtp://

I suspect this command line is wrong. You need to use an rtsp:// url, or 
to provide an SDP file.

> I try to get codec information from this command line. But I have 
> nothing on my console.

Maybe you even wrote the wrong IP:port. Note that you likely need to 
specify "?local_port=..." in the url.


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