[FFmpeg-devel] [PATCH] lavfi/testsrc2: fix completely transparent alpha.

Carl Eugen Hoyos ceffmpeg at gmail.com
Fri Jul 21 16:43:12 EEST 2017

2017-07-21 15:40 GMT+02:00 Nicolas George <george at nsup.org>:
> Le tridi 3 thermidor, an CCXXV, Carl Eugen Hoyos a écrit :
>> The default you suggest is of course much better than the original
>> default but ideally, some kind of "banding" should be used to allow
>> testing transparency in libswscale, encoders and decoders.
> Can you be a little more specific? I am not sure I understand what
> you mean exactly.

I meant value = width or value = height (but I am not saying this
is necessarily a wise suggestion).

> Would having two different alpha values for the
> alternating vertical bands fill your suggestion?

I think so.

Thank you, Carl Eugen

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