gstreamer dvb a/v sync problem
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hi all,
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
Volter
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Re: gstreamer dvb a/v sync problem
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Hello, I am facing a similar problem. After some
debugging, the exact problem I found was:
Could anyone throw some light on this? Regards Ankur Sharma From: Volter Yen
[mailto:[hidden email]] hi
all, 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
Volter
[广告] 买房不必东奔西走，上房老大，看"二手房"网上房展会
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In reply to this post by Volter Yen
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Re: gstreamer dvb a/v sync problem
|
|
In reply to this post by Volter Yen
Hello, I am facing a similar problem. After some
debugging, the exact problem I found was:
Could anyone throw some light on this? Regards Ankur Sharma From: Volter Yen
[mailto:[hidden email]] hi
all, 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
Volter [广告] 买房不必东奔西走，上房老大，看"二手房"网上房展会
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: gstreamer dvb a/v sync problem
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In reply to this post by Volter Yen
2008/9/25 Volter Yen <[hidden email]>:
> hi all, > 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 > > Volter You have a few problems with your pipeline. i) es-pids should not be used with flutsdemux. If you have the pmt pid and the elementary stream pids coming out of dvbsrc then there is no issue. Using es-pids like you are makes it ignore the pcr values contained in the transport stream. ii) The queues you should be using should have max-size-buffers=0 and max-size-time=0 set. You should also be using a more recent version of gstreamer core. Zaheer ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: gstreamer dvb a/v sync problem
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Hi zaheer, Thank you for your reply first. I have adjusted my pipeline to the followings: gst-launch-0.10 dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 the pids string contained audio-pid:video-pid:pmt-pid:pcr-pid, but it still report the similar problems : Setting pipeline to PAUSED ...
And according to your last advice, I should update my gstreamer core to a more recent one,could you tell me which version of gstreamer that you used to have fixed these bugs , thank you.
Best regards ! Votler
在2008-09-26，"Zaheer Merali" <[hidden email]> 写道： >2008/9/25 Volter Yen >> hi all, >> 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 >> >> Volter > >You have a few problems with your pipeline. > >i) es-pids should not be used with flutsdemux. If you have the pmt pid >and the elementary stream pids coming out of dvbsrc then there is no >issue. Using es-pids like you are makes it ignore the pcr values >contained in the transport stream. > >ii) The queues you should be using should have max-size-buffers=0 and >max-size-time=0 set. > >You should also be using a more recent version of gstreamer core. > >Zaheer > >------------------------------------------------------------------------- >This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >Build the coolest Linux based applications with Moblin SDK & win great prizes >Grand prize is a trip for two to an Open Source event anywhere in the world >http://moblin-contest.org/redirect.php?banner_id=100&url=/ >_______________________________________________ >gstreamer-devel mailing list >[hidden email] >https://lists.sourceforge.net/lists/listinfo/gstreamer-devel [广告] 特惠尝必胜客26道新品 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: gstreamer dvb a/v sync problem
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> And according to your last advice, I should update my gstreamer core to a
> more recent one,could you tell me which version of gstreamer that you used > to have fixed these bugs , thank you. > > > > Best regards ! > > Votler Good practise is to always use the latest stable release. In today's case gstreamer 0.10.20 gst-plugins-base 0.10.20 and gst-plugins-bad 0.10.8. Zaheer ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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