[Bug 732266] vaapidecode: h264: add support for decoding SVC base layers only
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Sun Aug 20 19:40:10 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=732266
--- Comment #23 from sreerenj <bsreerenj at gmail.com> ---
(In reply to Orestis Floros from comment #22)
> Created attachment 358028 [details] [review]
> (In reply to sreerenj from comment #21)
>
> > One access unit can have multiple view components, and yes you don't have to
> > add the slice_ext in the code for checking the complete_au. Sorry about the
> > confusion.
> > But ideally, we should add other checkings like "compare the view_ids of
> > nals" for vcl boundary detection (even though current code can work without
> > that).
>
> I think this requires the previous slice / vlc nalu right? I think h264parse
> doesn't keep that.
Yup, It requires some extra parsing code. But no need to include that one here
I believe (unless it is necessary to fix any known issue).
>
> > BTW I hit a segfault issue while testing your branch:
> >
> > Generate an mvc sample like this:
> > gst-launch-1.0 -v videotestsrc num-buffers=30 blocksize=115200 !
> > vaapih264enc num-views=2 ! video/x-h264, profile=stereo-high ! filesink
> > location=sample.mvc
> >
> > playback the stream with only base view
> > gst-launch-1.0 filesrc location=sample.mvc ! h264parse ! vaapih264dec
> > base-only=true ! vaapisink
>
> Thanks, fixed.
K great.
So I guess the only know issue is
https://bugzilla.gnome.org/show_bug.cgi?id=732266#c18 . right?
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