[Ffmpeg-devel] MPEG4 streaming over RTP

Luca Abeni lucabe72
Fri Jul 22 10:46:23 CEST 2005

Hi Zoltan,

On Fri, 2005-07-22 at 10:27 +0200, Zoltan NAGY wrote:
> starting ffmpeg:
> plazma:~/ffmpeg# ./ffmpeg -an -re -i ~/4cast/c770.mp4 -vcodec copy -f 
> rtp rtp://;
> ffmpeg version CVS, build 4759, Copyright (c) 2000-2004 Fabrice Bellard
>   configuration:  --enable-faad --enable-mp3lame --enable-gpl 
> --enable-shared
Well, if you want it to work, you have to follow my recipy... :)
In my instruction, you have to use an mpeg4 video file (test.m4v,
generated with output_example). You are using a .mp4 file, which is a
different thing. I bet it does not contain mpeg4 global headers, so you
get all those errors.

Simple fix: use an mpeg4 video file containing the proper headers.
Alternative fix: try -vcodec mpeg4
Another alternative fix: there should be some ffmpeg option to insert
the proper headers. I do not remember it right now.

I am away from my test machine, so I cannot directly verify all this.
Later, I'll do some tests and I'll post a followup mail


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