Trouble syncing 2 mono audio IP cams into stereo

[Shervin Emami]

Thanks Sebastian. I am using Gstreamer 1.2 because the NVIDIA Tegra K1
OpenMAX plugins (for video codecs) are provided just for that version. Do
you think we are likely to be able to port NVIDIA's OMX codec drivers from
1.2 to 1.8, or port Gstreamer's audiointerleave element from 1.8 down to
1.2? Or would it would be really hard either way? We're getting to the
point where we might have to give up on our 7 month project because we
can't get audio and video to sync together in Gstreamer!


Cheers,
Shervin Emami.
http://www.shervinemami.info/Robotics_Engineer.html

On Fri, Jun 17, 2016 at 9:31 PM, Sebastian Dröge <sebastian at centricular.com>
wrote:

> On Do, 2016-06-16 at 18:51 +1000, Shervin Emami wrote:
> > Hi,
> >
> > I'm trying to convert mono (G.711 mulaw) streams from 2 IP cameras
> > into a single stereo stream, but I've had a lot of trouble getting
> > the Left & Right channel to stay in sync. Sometimes the 2 channels
> > are perfectly in sync but sometimes they are 125ms out of sync. Here
> > is my current pipeline (using Gstreamer 1.2.4 on Jetson TK1):
> > [...]
>
> The interleave element in 1.2 did not properly synchronize. You should
> update to 1.8 and use the new audiointerleave element instead. That one
> will synchronize the audio correctly according to its timestamps.
>
> --
>
> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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>
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