Streaming Server to support VLC

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StreamVOD
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Streaming Server to support VLC

Postby StreamVOD » 26 Feb 2007 11:01

We are developed a Streaming Server which can support QuickTime player well.
Now we want to support VLC player but we encouter some big problems.
1.VLC player won't clean up the RTP/UDP data buffer when it performs seeking: when we use VLC to seek, the data in the buffer will cause VLC to compute the wrong start time and throw the newly coming data. Who can tell me that which module I should edit in order to fix this problem?

2.When VLC perform seeking is could not display the right time in the progress bar: I mean when I drag the progress bar to a new time point, the VLC with order the correct content of this time but after that, the progress bar will aotumatically move forward. So VLC will not display the right time status with the progress bar. But I found that when we use VLC to demand a file from Darwin Streaming Server, the progress bar will not act as demand film from our own Streaming Server. What should we do in order to fix this problem? We have already add the "RtpInfo:" header in the PLAY RTSP response to tell VLC the first vidoo and audio packet's infomation after seeking. Can any one tell me which module of VLC with control the status of progress bar?

Thank you very much!

Rahul Patel
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Re: Streaming Server to support VLC

Postby Rahul Patel » 21 May 2009 17:28

hey I am also facing same problem. Did you get any solution or have you fix it?

I am using 0.9.9 vlc player as a client for playing RTSP/RTP streaming data.
VLC is playing video properly until I do seek/goto operation on it. Means when I move slider, vlc starts dropping the packets. :(
VLC messages window show following warning messages.

main warning: late picture skipped (97706880)
main warning: PTS is out of range (97587092), dropping buffer
main warning: late picture skipped (97713641)
main warning: PTS is out of range (97590585), dropping buffer
main warning: PTS is out of range (97588301), dropping buffer
main warning: PTS is out of range (97592571), dropping buffer
main warning: computed PTS is out of range (32426), clearing out
main warning: PTS is out of range (97591578), dropping buffer
main warning: output PTS is out of range (32454), clearing out
main warning: PTS is out of range (97585579), dropping buffer


And surprisingly this happens only in RTP over UDP when I do same thing in RTP over TCP or RTP over HTTP, everything works fine. :roll:
It seems vlc is not flushing it's buffer in case of RTP over UDP after seek operation.
I also observed that when I do backward seek/goto (move slider on back side), slider is coming back to it's previous position.

Is anybody facing same problem or having solution? :wink:
Is there any setting in vlc which can solve my problem?

Note: My RTSP server has support for npt range and RTP-Info. So it can handle seek request.

viewtopic.php?f=2&t=59620&p=199168&hili ... dp#p199168
Rahul Patel,
Embedded Software Engineer,
eInfochips Ltd
www.einfochips.com


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