avdec_h264 Error Messages

[Tim Müller]

On Wed, 2016-08-03 at 16:53 -0400, Brian Panneton wrote:

Hi,

> I have been receiving these error messages when processing mkv files
> to mp4:
> 
> ERROR libav Missing reference picture
> ERROR libav decode_slice_header error
> 
> I am attempting to track them down and at catch them within my python
> code. (snip)
> 
> I do not have a MainLoop thus I am doing it this way. I also am not
> running it in PLAYING mode and am stepping frame by frame.
> 
> If anyone has any idea what is causing me to not catch these errors
> that would be great. I am able to get all the other
> errors/warnings/state changes but nothing from libav. 

These are not really error messages in the GstBus/GstMessage sense, but
simply debug log messages. They are not fatal, and depending on the
context might be harmless. They tend to happen if you're using a lossy
transport and some packets/data was lost, or if you're streaming and
the video data doesn't start with a keyframe, for example.

Cheers
-Tim

-- 

Tim Müller, Centricular Ltd - http://www.centricular.com