Getting Each h264 Frame

[Timm Murray]

That did the trick, thanks.  For the sake of any future searchers, the full
command was:

gst-launch-0.10 filesrc location=in.h264 ! h264parse !
video/x-h264,alignment=au,stream-format=byte-stream ! filesink
location=out.h264


On Tue, Jan 28, 2014 at 6:30 PM, Tim Müller <tim at centricular.com> wrote:

> On Tue, 2014-01-28 at 08:16 -0600, Timm Murray wrote:
>
> > My app requires fetching each frame of an h264 stream, wrapping the
> > frame in custom headers, and then sending it over the network.
>
> Then you probably want something like:
>
>   .. ! h264parse !
> video/x-h264,alignment=au,stream-format=byte-stream ! ...
>
> (or just stream-format=avc which implies frame alignment already, if you
> don't want annex-b type data).
>
>  Cheers
>   -Tim
>
> > For testing, I'm using a raw .h264 file and trying to fetch each frame
> > in a fakesink.  On the command line, it's similar to this:
> >
> > $ gst-launch-0.10 filesrc location=in.h264 ! h264parse ! filesink
> > location=out.h264
> >
> >
> > I would have expected out.h264 to be identical to in.h264.  And they
> > are the right size, but there are slight differences between them:
> >
> > $ ls -l in.h264 out.h264
> > -rw-r--r-- 1 user group 100495 Jan 19 17:00 in.h264
> > -rw-r--r-- 1 user group 100495 Jan 28 08:00 out.h264
> > $ sha1sum in.h264 out.h264
> > 2046b04ed23d3980d35c4819a97358113beb0f6c  in.h264
> > ef8233787e025dfc8aeb4b8f1a245014bb43d528  out.h264
> >
> >
> > Looking at them in a hex editor, in.h264 starts with 0x00000001, and
> > out.h264 starts with 0x0000000A.  There are a few other differences
> > here and there, too.  It's enough that mplayer doesn't detect the
> > right filetype and refuses to play in (in.h264 plays fine).
> >
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
> --
> Tim Müller, Centricular Ltd - http://www.centricular.com
>
> _______________________________________________
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> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
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