[vlc-devel] RTSP-Streaming, frames dropped when RTCP sender report arrives

Sébastien Escudier sebastien-devel at celeos.eu
Wed Jun 8 10:20:14 CEST 2011

On Wed, 2011-06-08 at 10:09 +0200, Max Göttner - d.stream wrote:
> Hello,
> is there a known bug concerning the following issue?
> I receive a RTSP 4000kbit mpeg4 / h264 stream without transcoding from a
> camera via UDP. My LibVlc version is 1.1.9. I observe that camera and client
> exchange RTCP sender report and receiver report packets at regular
> intervals. However if and only if the first sender report arrives one or two
> frames are not written to the video-file, although the according udp packets
> arrive.
> Any suggestions? Thanks in advance.

Look at vlc logs, you may see pts warnings.
when SR are received, RTP timestamps are adjusted.
I had a camera with buggy SR, resulting in frame skipping.

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