Re: [Linphone-developers] Incoming video garbled (H264, MP4V-ES), no video with VP8

[Ghislain Mary]

Hi Jeremy,

I looked at the logs and the network traces you 
provided. There are indeed decoding errors. However these errors are not
 in Linphone but in ffmpeg that Linphone uses to decode H.264 streams.
Searching
 for some of the decoding error messages (eg "out of range intra chroma 
pred mode" or "mb_type -6 in P slice too large at 4 7") brings a lot of 
results from people having the same kind of problem.
For example, http://mailman.videolan.org/pipermail/x264-devel/2009-October/006410.html or https://ffmpeg.org/trac/ffmpeg/ticket/285.

So I'm afraid there is not much we can do in Linphone to support this 
kind of streams. You may try to use the latest version of ffmpeg that 
may fix this issue. Or if you have access to it, you can try to change 
the configuration of the encoder of the H.264 stream, but you'll need to
 find the encoding option that is causing the issue.

Cheers,
Ghislain

On 12 March 2013 11:34, Jeremy Jongepier <address@hidden> wrote:

On 01/10/2013 09:00 AM, Ghislain Mary wrote:

Hi,

To be able to understand what is going wrong what is needed is the linphone
debug traces of the client receiving the call and wireshark network
captures of the call on this same client. You can send this on this list.

Cheers
Ghislain

Hello Ghislain,

Apologies for the late reply. Log and pcap file can be downloaded here:
http://downloads.autostatic.com/temp/linphone-h264-garbled.tar.bz2

Regards,

Jeremy

On 9 January 2013 22:48, Jeremy Jongepier <address@hidden> wrote:

On 12/20/2012 11:24 AM, Jeremy Jongepier wrote:

Hello,

I'm having issues with incoming videostreams (VP8, H264 and MP4V-ES) on
Linphone.

VP8 issue has been resolved. But it would be great if H264 would work too
so Linphone can be used directly with Asterisk and webrtc2sip as Asterisk
doesn't do VP8 yet.
What is needed to troubleshoot this issue? And does Linphone have a
bugtracker where I can file a report?

Regards,


Jeremy

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