[gst-devel] RTSP/RTP streaming - setting correct clock rate

Deeptendu Bikash dbikash at gmail.com
Fri Aug 25 07:52:55 CEST 2006

The same problem is happening even with mpeg4 video (MP4V-ES). If the clock
rate is different from 90000 it does not play correctly. Any help out there?

On 8/23/06, Deeptendu Bikash <dbikash at gmail.com> wrote:
> Hello,
> I am trying to stream H.263 video whose clock rate is different from
> 90000. In such a case gst-launch rtspsrc location=<RTSP URL> ! rtph263pdepay
> ! ffdec_h263 ! ximagesink does not work, with the warning: "pad
> rtpdec0:sinkrtp returned caps that are not a real subset of its template
> caps".
> However, if I go and change the clock rate from 90000 to the range [1,
> 2147483647] in gst_rtp_h263p_depay_sink_template (gstrtph263pdepay.c), and
> rebuild and reinstall the gst-plugins-good-0.10.3, the video plays, but
> not at the correct rate. Where is the correct place in the code to set the
> clock rate from the SDP? (I can see that gst_rtp_h263p_depay_setcaps() can
> actually set the caps, and gst_rtspsrc_media_to_caps() can convert the SDP
> to caps, but how should I link all these to make the thing work, either by
> changing existing plugin code, or in the gst-launch command line?)
> Thanks,
> Deeptendu
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