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Re: [Linphone-developers] Live Audio Video Streaming

From: Pramod Bhagwat
Subject: Re: [Linphone-developers] Live Audio Video Streaming
Date: Fri, 11 Jan 2008 14:42:19 +0530

Thanks Simon. In the application audio timestamp is incremented by 20 ms(i.e. 160 ) and for the video time stamp i am getting the current time and multiplying it by 90. (video framerate is 30) The VLC plays back both the audio and video stream synchronously. ( i.e playback has the lip sync) But the issue is latency initially there will not be any latency but as the time progress there is delay of 3 to 8 seconds. Does the application needs to change anything for the rtcp timestamp?

Warm Regards,

On Jan 11, 2008 2:39 AM, Simon Morlat <address@hidden> wrote:
The problem might come from your application that sends erroneous timestamp or
unsynchronised streams, or from VLC but usually VLC is quite stable.


Le Friday 28 December 2007 09:30:19 Pramod Bhagwat, vous avez écrit:
> Hi,
> i am using oRTP to stream live audio(u-law 8Khz) and Video(H.263) over the
> local network(100 Mbps LAN). The audio video stream is received by the VLC
> Media Player (version: 0.8.6d) on Windows.
> During the startup live audio and video is played back instantaneously in
> the VLC. But as the time progress i am seeing delay of about 3  to 8
> seconds in the live audio video playback.
> Does this problem is anything to do with oRTP settings or this is VLC
> player issue? Please let me know.
> Warm Regards,
> pramod

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