[FFmpeg-devel] [PATCH] libvpx: Enable vp9 alpha encoding

[James Almer]

On 7/1/2016 2:53 PM, Ronald S. Bultje wrote:
> Hi,
> 
> On Fri, Jul 1, 2016 at 1:40 PM, James Zern <jzern-at-google.com at ffmpeg.org>
> wrote:
> 
>> On Fri, Jul 1, 2016 at 10:07 AM, Carl Eugen Hoyos <cehoyos at ag.or.at>
>> wrote:
>>>> Do we have decoder support (for either vp8 or vp9) for these files?
>>>
>>> No, only encoding and muxing.
>>
>> Seems like a feature request, but no reason to block this one if the
>> vp8 one is here.
> 
> 
> I'm not sure I have an opinion on this... But it feels strange to allow
> encoding of content we cannot decode. Being ffmpeg, how do we recommend
> people handle the files created with this feature, if not by using ffmpeg
> itself?

We already create animated webp files that we can't decode. It wouldn't
be a first :P

PS: We should really add animated webp decoding, for that matter.