[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

From: Ghislain Mary
Subject: Re: [Linphone-developers] Incoming video garbled (H264, MP4V-ES), no video with VP8
Date: Wed, 13 Mar 2013 11:23:51 +0100

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, or
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.


On 12 March 2013 11:34, Jeremy Jongepier <address@hidden> wrote:
On 01/10/2013 09:00 AM, Ghislain Mary wrote:

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.


Hello Ghislain,

Apologies for the late reply. Log and pcap file can be downloaded here:



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

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


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

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?



Linphone-developers mailing list

Linphone-developers mailing list

Linphone-developers mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]