Audio and video synchronisation

hcpwll hcpwll at 163.com
Mon Oct 10 22:01:13 PDT 2011


Hi,
     Do you have check the elements create by playbin2?
     Maybe playbin2 use diffrent demux, decode or sink element.
     
At 2011-10-10 21:25:45,"Andreas Rödig" <a.roedig at null821.de> wrote:
>Hi,
>
>yes, playbin2 works fine. I think there is something wrong with my queue 
>in my pipeline. But i don't find some options to sync data streams in 
>pipeline.
>
>
>best Regards,
>Andreas
>
>Am 10.10.2011 15:09, schrieb Icarus Alive:
>> On Mon, Oct 10, 2011 at 12:16 PM, Andreas Rödig<a.roedig at null821.de>  wrote:
>>> Hi,
>>>
>>> i try to build my own pipeline (without playbin2).
>>>
>>> Thats what i have at the moment:
>>>
>>> gst-launch filesrc location=movie.mov ! queue2 ! qtdemux name=demux
>>> demux.video_00 ! queue ! fluvadec ! fluvasink demux.audio_00 ! queue !
>>> fluaacdec ! autoaudiosink
>>>
>>> My Problem:
>>> The Audio is starting directly. But video starts with a 2 seconds delay. And
>>> than audio and video are not synchron.
>>>
>>> What i have to do for synchron video and audio?
>>
>> try to print debug traces with playbin2 and figure out it's pipeline.
>> i hope the sync issue isn't seen with playbin2 ?
>> in my case, a streaming asf source plays pretty well (no observable
>> sync issues), but in my "optimized" pipeline, which was built by
>> observing playbin2, doesn't fare so well. I think in my optimization
>> drive, I've chopped off some necessary "sync" elements. recreating the
>> playbin2 pipeline using discrete elements on command-line, completely,
>> has been a challenge.
>>
>> i hope someone can shed some more light on this subject.
>> _______________________________________________
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>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>-- 
>Andreas Rödig
>
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