Re: Video delay grows over time

David R Robison <[email protected]> Wed, 11 Sep 2013 20:54:15 -0400
Newsgroups gmane.comp.video.videolan.vlc.general
Message-ID <[email protected]>
Here is an example of the logging where the buffer grows to over 2 seconds

main error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay 
increased to 381 ms)
main error: ES_OUT_RESET_PCR called
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Stream buffering done (2202 ms in 1025 ms)
main debug: End of video preroll
main debug: Received first picture
main debug: Decoder buffering done in 0 ms

So, PCR jitter kicks off a re-buffer of the stream and a re-sync of the 
clock.
4 times it records 0% buffering
then reports that 2.2 seconds was buffered in 1 second when the target 
buffer was 381ms.

Any idea what could cause this? What could cause 2s to be buffered when 
only 381ms was wanted?
Thanks, David

David R Robison
Open Roads Consulting, Inc.
103 Watson Road, Chesapeake, VA 23320
phone: (757) 546-3401
e-mail: [email protected]
web: http://openroadsconsulting.com
blog: http://therobe.blogspot.com
book: 
http://www.xulonpress.com/bookstore/bookdetail.php?PB_ISBN=9781597816526

On 9/9/2013 3:09 PM, David R Robison wrote:
> We are playing RTSP video with network-caching set to 200ms. However, we
> have times where the delay in the decoded picture can grow to as much as
> 4 to 8 seconds. Any idea what could be causing the delay inside of vlc?
> It almost seems like the buffering time is getting extended. Thanks, David
>



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