Re: [FFmpeg-devel] [libav-devel] [RFC] Exporting the alpha mode from decoders

2015-02-09 Thread wm4
On Mon, 09 Feb 2015 17:13:45 -0500 Calvin Walton wrote: > On Fri, 2015-02-06 at 13:51 +, Vittorio Giovara wrote: > > On Fri, Feb 6, 2015 at 11:32 AM, wm4 wrote: > > > This is a proposal for an API extension. > > > > > > Currently, some pixel formats support alpha, but whether the alpha > >

Re: [FFmpeg-devel] [libav-devel] [RFC] Exporting the alpha mode from decoders

2015-02-09 Thread Calvin Walton
On Fri, 2015-02-06 at 13:51 +, Vittorio Giovara wrote: > On Fri, Feb 6, 2015 at 11:32 AM, wm4 wrote: > > This is a proposal for an API extension. > > > > Currently, some pixel formats support alpha, but whether the alpha > > component contains something useful or just garbage is not part of

Re: [FFmpeg-devel] [libav-devel] [RFC] Exporting the alpha mode from decoders

2015-02-06 Thread Vittorio Giovara
On Fri, Feb 6, 2015 at 11:32 AM, wm4 wrote: > This is a proposal for an API extension. > > Currently, some pixel formats support alpha, but whether the alpha > component contains something useful or just garbage is not part of the > pixel format definition. This applies at least to packed RGB form