[Bug 777506] vaapidecoder_h264: Recursive loop and segfault after a few seconds

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=777506

--- Comment #6 from Ben White <ben.white at vcatechnology.com> ---
(In reply to Hyunjun Ko from comment #4)
> Seems that there is a problem in the loop in gstvaapidecoder_h264.c:3170
> 
> for(;;) {
>   // lost picture has parent ref, which is prev_picture
>   lost_picture = gst_vaapi_picture_h264_new_clone (prev_picture);
>   ...
>   // replace prev_picture with lost_picture which has parent(prev_picture)
>   gst_vaapi_picture_replace (&prev_picture, lost_picture);
>   ...
> }
> 
> But I don't know how to handle this to fix this issue.
> And i can't reproduce the case that is being through this loop.
> 
> Julian, can you share the media you are streaming?

Hi Hyunjun

The camera that shows this issue is available on:

rtsp://71.252.214.80:855/trackID=1

The username is admin
The password is 11223

This is not our camera so please let us know when you're done with it as the
end user wants to close it off.

Note that this is on a Ubiquiti wireless link - we suspect that is part of the
issue. But since it plays with h264dec, it's odd it does not work with vaapi
h264 dec.

Thanks a lot!
Ben

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