AMR audio codec not supported

[Alfonso Sanchez-Beato]

AMR audio codec is not supported currently. This is relevant for MMS videos, as AMR is the default for audio.

With gstreamer debug env var GST_DEBUG=*:3 I see:

0:00:39.390824849 23581 0xb3f053b0 WARN uridecodebin gsturidecodebin.c:939:unknown_type_cb:<uridecodebin4> warning: No decoder available for type 'audio/AMR, codec_data=(buffer)0000001164616d726170706c0100800005, rate=(int)8000, channels

$ system-image-cli -i
current build number: 131
device name: krillin
channel: ubuntu-touch/ubuntu-rtm/14.09-proposed
last update: 2014-10-27 15:32:17
version version: 131
version ubuntu: 20141027.1
version device: 20141015-32e0f27
version custom: 1413941794

[Jim Hodapp (jhodapp)]

Have you tried installing gstreamer1.0-libav to see if that codec is covered by libav? I'd be surprised if there wasn't a codec in that library for it.

[Alfonso Sanchez-Beato (alfonsosanchezbeato)]

Right, installing gstreamer1.0-libav fixes the problem. If that is the solution we want, we have to include it in the images.

Also, I would like to know if we do not plan to use Android audio codecs, and the reasons for using/not using them.

[Pat McGowan (pat-mcgowan)]

Two things are needed that are in progress but htis may not make the release milestone
- enable video attachments via MMS
- repackage the amr decoder plugin for gstreamer

[Alfonso Sanchez-Beato (alfonsosanchezbeato)]

This should be gst-plugins-ugly1.0 instead of gst-libav1.0. The reason is that plugins-ugly can be more easily split into packages that support different codecs, as each codec has its own shared library. On the other hand, libav is a single big shared library.

[Iain Lane (laney)]

laney@iota> apt-cache showsrc gst-plugins-ugly1.0 ~
Package: gst-plugins-ugly1.0
Binary: gstreamer1.0-plugins-ugly-doc, gstreamer1.0-plugins-ugly, gstreamer1.0-plugins-ugly-amr, gstreamer1.0-plugins-ugly-dbg

[Iain Lane (laney)]

I think someone needs to backport it to rtm.

[Iain Lane (laney)]

Actually I don't see ugly in rtm at all. You can probably just copy the Vivid package over.

I'm not sure what policies you guys apply for uploads to the RTM distribution around binary copies, versioning and such, so I'd prefer to leave it to someone else - should be a simple task assuming the package builds.

[Pat McGowan (pat-mcgowan)]

The proposal is to refactor that package to just pull in the support we need, we do not want all of gst-ugly

[Alfonso Sanchez-Beato (alfonsosanchezbeato)]

We need to seed the already existing gstreamer1.0-plugins-ugly-amr in the phone images to get this one closed.

[Łukasz Zemczak (sil2100)]

Looking at the gstreamer1.0-plugins-ugly-amr it seems that including it and the additional dependencies in our images would require ~450 KB of disk space as its addition to the seeds results in pulling in libopencore-amrnb0 and libopencore-amrwb0. That's not super much, but considering our recent image size issues, I suppose this needs to be approved by the product team. I also need to see how much free space we have in each of our supported images right now.

[Pat McGowan (pat-mcgowan)]

ok to add to the seed

[Łukasz Zemczak (sil2100)]

This bug was fixed in the package ubuntu-touch-meta 1.221vivid11 in https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/stable-phone-overlay

---------------

ubuntu-touch-meta (1.221vivid11) vivid; urgency=medium

  * Add gstreamer1.0-plugins-ugly-amr to touch (LP: #1386553)

 -- Łukasz 'sil2100' Zemczak <email address hidden> Thu, 17 Sep 2015 18:05:47 +0200