OPUS timestamp

[Tim-Philipp Müller]

On Wed, 2013-01-30 at 01:12 -0800, zragge wrote:

Hi,

> Can someone please show me a simple pipeline that takes audio data either
> from micrphone or file, encode it with OPUS and send it with RTP with
> correct timestamps (I get the same timestamps on all packets)? I'm using the
> latest gstreamer 1.0 provided by mint (linux) repositories.
> 
> Here is an example of a pipeline I have tried:
> gst-launch-1.0 autoaudiosrc ! opusenc ! rtpopuspay pt=97 ! udpsink
> port=45001
> 
> I have tried adding a lof caps and properties as well, but none seem to help
> me to get timestamps. I have also added rtpbin hoping that would help, but
> it did not. 
> 
> If I use exactly the same pipeline but with ulaw/pcmu it works fine:
> gst-launch-1.0 autoaudiosrc ! mulawenc ! rtppcmupay pt=97 ! udpsink
> port=45001
> 
> Are the opus elements broken? :-/

It looks like a bug in the Opus RTP payloader, as the encoder outputs
timestamps just fine (pass -v to gst-launch-1.0 and use fakesink
silent=false to see the timestamps on buffers).

It should be easy to fix. Please file a bug in bugzilla.

Cheers
 -Tim