[Libav-user] Problems decoding h264 (Baseline, yuvj420p) ip camera stream

Alexander Wischnewski aw.wisch at googlemail.com
Thu Jun 6 17:47:32 CEST 2013

wget didnt worked, but i have a small test program to save the stream
The saved file gets decoded well with ffmpeg, so it seems it is not a
decoding issue.

The test program is removing any RTSP / RTP header information, the camera
with the working h264 http stream is sending the same RTSP / RTP headers, i
dont think this is the cause. Now i am more confused ....

When i recording the raw stream of both cameras on hard disk the only big
difference is the file size, the stream not working is producing much more
data. Is there a way to change the http buffer size for incoming packets in
ffmpeg ?


2013/6/6 Carl Eugen Hoyos <cehoyos at ag.or.at>

> Alexander Wischnewski <aw.wisch at ...> writes:
> > ffmpeg -i "
> "
> > -vcodec copy h264_ip_cam_input.avi
> >
> > Was this the wrong way ?
> Not necessarily, but it will likely not help showing
> if there is a bug in FFmpeg or not.
> Does wget work? Or is there maybe another program to
> simply dump the network packets?
> Carl Eugen
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> Libav-user at ffmpeg.org
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