[FFmpeg-devel] libavcodec/hap : add HapAlphaOnly decoding/encoding
Carl Eugen Hoyos
ceffmpeg at gmail.com
Tue Oct 10 00:36:50 EEST 2017
2017-10-09 21:34 GMT+02:00 Martin Vignali <martin.vignali at gmail.com>:
>>> IMHO, from a compositing point of view, alpha only and gray is
>>> the same thing.
>>> It's common (in cgi compositing for example), to use alpha (or
>>> matte) as separate gray only file.
>> If this is what you believe, I don't think an RGBA representation
>> should be committed.
> This is not about what i believe ! :-)
I think it is.
I asked you to explain why it is a good idea to map alpha only
to rgba and if this is what users expect. Your answer seems
to indicate that you share my feeling that it would be unexpected.
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