[FFmpeg-devel] [PATCH 2/2] avcodec/videotoolbox: add hevc support

[wm4]

On Wed, 27 Sep 2017 09:17:36 -0700
Aman Gupta <ffmpeg at tmm1.net> wrote:

> On Wed, Sep 27, 2017 at 5:51 AM, wm4 <nfxjfg at googlemail.com> wrote:
> 
> > On Tue, 26 Sep 2017 18:08:10 -0700
> > Aman Gupta <ffmpeg at tmm1.net> wrote:
> >  
> > > From: Aman Gupta <aman at tmm1.net>
> > >
> > > ---
> > >  configure                    |   2 +
> > >  libavcodec/allcodecs.c       |   1 +
> > >  libavcodec/hevc_refs.c       |   3 +
> > >  libavcodec/hevcdec.c         |  12 ++-
> > >  libavcodec/vda_vt_internal.h |   1 +
> > >  libavcodec/videotoolbox.c    | 203 ++++++++++++++++++++++++++++++  
> > +++++++++++++  
> > >  6 files changed, 221 insertions(+), 1 deletion(-)  
> >
> > PS: A final patch should make sure these symbols don't cause build
> > failures with older SDKs:
> >  
> > > +        case kCMVideoCodecType_HEVC :  
> >  
> > > +        videotoolbox->cm_codec_type = kCMVideoCodecType_HEVC;  
> >
> >
> > Maybe with a configure check.
> >  
> 
> This is available since macOS 10.11. How far back does ffmpeg support?

Really not sure. If VideoToolbox support is never detected before
10.11, then it's OK.