List Info

Thread: Live Audio Video Streaming
Live Audio Video Streaming
user name
 2007-12-28 02:30:19 

  


  

    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


  

  
  
   
     
    

  

    Re:  Live Audio Video Streaming
  


  

     country flaguser name
France		
     2008-01-10 15:09:57
  


  

    
The problem might come from your application that sends
erroneous timestamp or 
unsynchronised streams, or from VLC but usually VLC is quite
stable.

Simon

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




_______________________________________________
Linphone-developers mailing list
Linphone-developersnongnu.org
http://lists.nongnu.org/mailman/listinfo/linphone-de
velopers



  


  

    
  

  
  
   
     
    

  

    Re:  Live Audio Video Streaming
  


  

     user name

     2008-01-11 03:12:19
  


  

    

  


  

    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,
pramod

On Jan 11, 2008 2:39 AM, Simon Morlat < simon.morlatlinphone.org">simon.morlatlinphone.org> wrote:

The problem might come from your application that sends erroneous timestamp or
unsynchronised streams, or from VLC but usually VLC is quite stable.

Simon

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.
&gt; 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,
&gt; pramod






  

  
  
   
     
    






 [1-3]











   
 





about | contact  Other archives ( Real Estate discussion Medical topics )