[gst-devel] gstreamer dvb a/v sync problem
Ankur_Sharma06 at infosys.com
Thu Sep 25 10:13:28 CEST 2008
I am facing a similar problem. After some debugging, the exact problem I found was:
1. The resynchronization of the Demux Clock using PCR is not happening. Is there any problem with this part of the gstClock code? I am not sure if the add_clock_observation function works fine?
Could anyone throw some light on this?
From: Volter Yen [mailto:volter619 at 163.com]
Sent: Thursday, September 25, 2008 1:27 PM
To: gstreamer-devel at lists.sourceforge.net
Subject: [gst-devel] gstreamer dvb a/v sync problem
when using gstreamer to play dvb signal, if I set the osssink's sync to true, the pipelie give 'Unexpected discontinuity in audio timestamps of more than half a second(...) resyncing ' and stalled there....but it is said that 'sync=true ' should work , my gstreamer core is 0.10.14,fluendo-mpegdmuex-0.10.15, and by the way my pipelie is:
gst-launch-0.10 dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 freq=474000000 code-rate-lp=2/3 code-rate-hp=1/2 guard=8 hierarchy=NONE pids=630:512:128 ! flutsdemux es-pids=650:512 name=demuxer demuxer. ! queue ! mad ! audioconvert ! osssink
and if i add 'sync=false' to ossink , it works but when play with video the audio is heavy lagged.
I have referrenced to this link https://core.fluendo.com/gstreamer/trac/ticket/46, it seems that these problem should have been resolved.
anybody know the way out? thank you
**************** CAUTION - Disclaimer *****************
This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely
for the use of the addressee(s). If you are not the intended recipient, please
notify the sender by e-mail and delete the original message. Further, you are not
to copy, disclose, or distribute this e-mail or its contents to any other person and
any such actions are unlawful. This e-mail may contain viruses. Infosys has taken
every reasonable precaution to minimize this risk, but is not liable for any damage
you may sustain as a result of any virus in this e-mail. You should carry out your
own virus checks before opening the e-mail or attachment. Infosys reserves the
right to monitor and review the content of all messages sent to or from this e-mail
address. Messages sent to or from this e-mail address may be stored on the
Infosys e-mail system.
***INFOSYS******** End of Disclaimer ********INFOSYS***
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the gstreamer-devel