How can I deserialize codec_data from h.264 (avc) caps
ding at panopto.com
Fri Sep 7 00:54:14 UTC 2018
Yes, it is just a hex representation of a byte array.
To clarify my question: How can I extract the information from the byte
I found some code inside gst-plugins-bad (gsth264parse.c) that seems like
it might work. I am probably going to hack something together from that
(unless anyone knows of a better solution).
On Thu, Sep 6, 2018 at 4:44 PM Nicolas Dufresne <nicolas at ndufresne.ca>
> Le jeudi 06 septembre 2018 à 14:25 -0700, David Ing a écrit :
> > I can't figure out how to deserialize the codec_data within a caps
> > structure like this one:
> > video/x-h264
> > > stream-format=(string)avc
> > > alignment=(string)au
> > > level=(string)4.2
> > > profile=(string)main
> > > codec_data=(buffer)014d402affe10029674d402a965403c0113f2e02d4040405
> > > 00000300010000030032e04000fa000005dc026a540ed0913501000468ce3520
> I believe this is just hex representation of the bytes, isn't it ? From
> API point of view, gst_caps_from_string() will handle this. I believe
> we use a GValue transform to do string to GstBuffer, and have a handle
> for that transform registered into GLib.
> > > width=(int)1920
> > > height=(int)1080
> > > framerate=(fraction)25/1
> > > pixel-aspect-ratio=(fraction)1/1
> > > interlace-mode=(string)progressive, parsed=(boolean)true
> > >
> > Can someone point me in the right direction?
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