On Monday, November 9, 2020, 03:24:43 AM CST, amin...@mailbox.org
<amin...@mailbox.org> wrote:
On Sat, Nov 07, 2020 at 03:13:49PM +0000, Brian Matherly wrote:
> > Thanks.
> >
> > Is there an easy way to list (or find) which formats are supported --
> > and thus don't require conversions -- for inputs and outputs of
> > filters/transitions?
> >
> > Tom
>
> I think the only way would be to audit the source code and see what mlt image
> format the service requests.
> ~Brian
Am I (at all) on the right track here?:
Yes!
This code seems to say the avformat producer supports rgba, rgb24, and yuv422p?
https://github.com/mltframework/mlt/blob/master/src/modules/avformat/producer_avformat.c#L614-L630
This is a better place to look:
https://github.com/mltframework/mlt/blob/master/src/modules/avformat/producer_avformat.c#L1167rgba,
rgb24, yuv420p, yuyv422
And the avformat consumer supports rgba, rgb24, yuv420p, yuv422p16le, yuyv422?
https://github.com/mltframework/mlt/blob/master/src/modules/avformat/consumer_avformat.c#L580-L595
Yes
But the vignette filter only supports yuv422?
https://github.com/mltframework/mlt/blob/master/src/modules/oldfilm/filter_vignette.c#L34
Yes
(And then again, does this imply the avformat consumer is somehow "really" only
yuv422?:)
https://github.com/mltframework/mlt/blob/master/src/modules/avformat/consumer_avformat.c#L1514
No. That is a default value that is overridden later in the function.
Thanks!
Tom
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