Hi everyone
 
We've come across a mediapackage recorded with the 1.1 release that is
out of sync in the Engage player and it looks like a duration issue with
the FLVs and meta files generated. It's not a Red5 Streaming server
problem as other files play in sync.
 
None of the durations match up with the original mediapackage files. On
the capture agent, all the 3 files are same length: 1h 29mn 58s 728ms
(5398728 and are recorded in sync. But after the encoding process is
finished server-side, generated FLVs are of differing length as seen
here:
 
Metafiles: 
           webcam: 5315500, 
           vga: 5399667 

Media files: 
           webcam: 5315534 - 1h 28mn 35s 534ms, 
           audio: 5315525 - 1h 28mn 35s 525ms, 
           vga: 5399692 - 1h 29mn 59s 692ms 
 
Can this duration issue be the cause of the player being out of sync?
Our audio was bad so we cannot 100% verify if the audio is affected as
well but it does look like it is. 
 
Why would we get a duration change after the encoding process anyway?
Does that mean ffmpeg is compressing the time line as well? 
 
I can open a Jira for this if needed.
 
Please help.
 
Thanks
 
 
--
Lovemore Nalube
OLE Developer (Vula)
University of Cape Town
http://www.cet.uct.ac.za/LovemoreN



 

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