[FFmpeg-devel] [RFC] AVFilter Parser

Michael Niedermayer michaelni
Wed Mar 26 02:49:19 CET 2008

On Sat, Mar 22, 2008 at 01:22:22AM +0100, Vitor Sessak wrote:
> 3- Allow labels to optionally specify the source/destination stream number.
> Advantages: Nice simplifications, like instead of
> (in1) vflip (T1); (in2) (T1) picInPic (out)
> that would be equivalent to
> (in1) vflip (T1:0); (in2:0) (T1:1) picInPic (out)
> could be written, much more simply
> (in1) vflip, (in2:0) picInPic (out)

What about allowing to list all so that

(x:0) (y:1) (z:2) filter_with_3inputs
is the same as
(x y z) filter_with_3inputs


(x:0) (z:2) filter_with_3inputs
is the same as
(x 0 z) filter_with_3inputs

(x:0 y:1 z:2)
(x:0, y:1, z:2)
looks cleaner to me than
(x:0) (y:1) (z:2)

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No human being will ever know the Truth, for even if they happen to say it
by chance, they would not even known they had done so. -- Xenophanes
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