Re: Hardware decoding in ffmpeg3 on RPI.

[trebol <trebol4444%gmx.com@localhost>]

On Tue, 3 Oct 2017, Thomas Klausner wrote:

> On Wed, Sep 27, 2017 at 09:26:12AM +0100, trebol wrote:
> > Hello, something like this in options.mk adds support for hardware decoding.
> >
> > # Raspberry Pi support
> > .if !empty(PKG_OPTIONS:Mrpi)
> > .include "../../misc/raspberrypi-userland/buildlink3.mk"
> > #CFLAGS+=		"-L${PREFIX}/lib"
> > SUBST_CLASSES+=		vc
> > SUBST_STAGE.vc=		pre-configure
> > SUBST_MESSAGE.vc=	Fixing path to VideoCore libraries.
> > SUBST_FILES.vc=		configure
> > SUBST_SED.vc+=		-e 's;-isystem/opt/vc;-I${PREFIX};g'
> > SUBST_SED.vc+=		-e 's;/opt/vc;${PREFIX};g'
> > CONFIGURE_ARGS+=	--enable-omx-rpi --enable-mmal --disable-xvmc
> > .endif
>
> Thanks, I've added this.
>
> I can't test it though, so someone with an rpi should do that :)
> Thomas

Well... it's broken.

ffplay3 codec:v:1 h264_mmal video.mp4

And you'll have a wonderful 'translation fault' crash.

Xine has mmal support too, but is also broken. mpv has mmal support, but 
it needs other GL libraries appart of the ones from raspberrypi-userland 
to compile and it was a mess... and I was already giving up. The only 
application I was able to use with hardware acceleration is omxplayer, and 
it is just complete unstable.

If someone is using NetBSD current in a RPI (I have a RPI2 v1.1) and is 
able to compile, for example, SDL2 with a working rpi driver, I'd love to 
hear about it.

regards,
trebol.