[gst-devel] Video and Audio sync problem

[tamil arasu]

Hi All,


    Live Source  =================> Capturing Module.

   (DM365ipnc)                                     (DM365 leopard)

My Live Source is DM365IPNC.I am capturing Video and audio coming from IPNC
in Capturing Module Unit using other Board.

There is no problem in  Sync between Audio and Video in Capturing Module.Now
Two or Three second delay between Live Source Module  and  Capturing Module.


How to solve this delay problem between these two module.



thanks and regards,

Arasu.M


On Fri, Aug 13, 2010 at 12:39 PM, AJAY GAUTAM <ajaygautam1981 at gmail.com>wrote:

>
>
> On Fri, Aug 13, 2010 at 11:10 AM, tamil arasu <marasu2010 at gmail.com>wrote:
>
>> Hi Ajay Gautam,
>>
>>
>>
>>
>> gst-launch rtspsrc location=rtsp://192.168.1.168:8554/mpeg4 latency=10
>> name=demux demux. ! queue! rtpmp4vdepay ! mpeg4videoparse ! dmaidec_mpeg4 !
>> TIDmaiVideoSink sync=true videoOutput=LCD videoStd=320X240 demux. ! queue !
>> rtppcmudepay ! mulawdec ! alsasink
>>
>> Above one is working with proper Video and Audio sync.But there was 3 to 4
>> second delay between live source and  Destination end(where I am displaying
>> video and audio).
>>
>> I increased latency to 500, I am getting the same delay.
>>
>>
>>
>>
>>
>>
>> thanks and regards,
>>
>> Arasu.M
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Thu, Aug 12, 2010 at 9:00 PM, AJAY GAUTAM <ajaygautam1981 at gmail.com>wrote:
>>
>>> Hi ,
>>> Please use
>>> gst-launch rtspsrc location=rtsp://192.168.1.168:8554/mpeg4 latency=10
>>> name=demux demux. ! queue! rtpmp4vdepay ! mpeg4videoparse ! dmaidec_mpeg4 !
>>> TIDmaiVideoSink sync=true videoOutput=LCD videoStd=320X240 demux. ! queue !
>>> rtppcmudepay ! mulawdec ! alsasink
>>>
>>> On Thu, Aug 12, 2010 at 7:55 PM, tamil arasu <marasu2010 at gmail.com>wrote:
>>>
>>>> Hi All,
>>>>
>>>>
>>>>                 I am new to gstreamer.I am using pipeline below
>>>> mentioned for playing Video and Audio from Live source.
>>>>
>>>> gst-launch rtspsrc location=rtsp://192.168.1.168:8554/mpeg4 latency=10
>>>> name=demux demux. ! queue! rtpmp4vdepay ! mpeg4videoparse ! dmaidec_mpeg4 !
>>>> TIDmaiVideoSink sync=false videoOutput=LCD videoStd=320X240 demux. ! queue !
>>>> rtppcmudepay ! mulawdec ! alsasink
>>>>
>>>> Above Pipeline is working with proper Audio and Video sync.When I was
>>>> testing the Video and Audio sync by running the above pipeline so many
>>>> times,Sometimes  Audio got delayed about half second.
>>>>
>>>> I am getting this warning  mentioned below
>>>>
>>>>
>>>> ../../../../src/gst-libs/gst/audio/gstbaseaudiosink.c(1449):
>>>> gst_base_audio_sink_render (): /GstPipeline:pipeline0/GstAlsaSink:alsasink0:
>>>> Unexpected discontinuity in audio timestamps of more than half a second
>>>> (0:00:00.569375000), resyncing
>>>>
>>>>
>>>>
>>>>
>>>> thanks and regards,
>>>>
>>>> Arasu.M
>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>> --
>>> Thanx & Regards
>>> Ajay Gautam
>>> +91-9717785580
>>>
>>>
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>>>
>>
>>
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>>
>
> Hi ,
> Please update your package to Revision 1.45 ,It will not sync properly if
> the first audio and video packets do not arrive in the
> receiver at the same time.
>
>
> --
> Thanx & Regards
> Ajay Gautam
> +91-9717785580
>
>
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by
>
> Make an app they can't live without
> Enter the BlackBerry Developer Challenge
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>
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