[gst-devel] Forcing synchronisation in a specific part of a pipeline

[Edward Hervey]

On Wed, 2009-02-18 at 08:29 +0000, SP GLE wrote:
> Hello,
> 
> Using the following pipeline :
> [filesrc]---->[rtppcmapay]---->[rtpdtmfmux]-----...--->[fakesink sync=true]
>                                  /\
> [rtpdtmfsrc]----------------------
> 
> When playing a DTMF the rtpdtmfmux locks the stream and unref all 
> buffers from the filesrc, but without syncing on the clock, so file 
> reading looses sync and all buffers are played as fast as possible.
> 
> How can we sync the filesrc part before injecting in rtpdtmfmux ?
> 
> We tried by adding an identity with sync=true but tis one requires 
> segments with GST_FORMAT_TIME and not BYTES as provided by filesrc.
> 
> The probleme can be reflected by this cmd :
> A/ Working Pipeline
> gst-launch filesrc location=toto.alaw ! "audio/x-alaw,rate=8000,channels=1" ! identity datarate=8000 ! rtppcmapay ! fakesink sync=true
> 
> B/ How to make previous cli works if disabling sync=true on fakesink.
> 
> 
> Any idea is welcome :).

  Use the sync property of identity :)

> 
> Regards.
> 
> 
>       
> 
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
> -Strategies to boost innovation and cut costs with open source participation
> -Receive a $600 discount off the registration fee with the source code: SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel