doc/codecs: document skip_alpha

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago · dfb89fee2d
parent e7fa0417b3
commit dfb89fee2d
1 changed files with 3 additions and 0 deletions
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@ -1081,6 +1081,9 @@ Interlaced video, top coded first, bottom displayed first
@item bt
 Interlaced video, bottom coded first, top displayed first
@end table
+
+@item skip_alpha @var{integer} (@emph{decoding,video})
+causes alpha plane not to be decoded, like "gray" which skips chroma.
@end table

@c man end CODEC OPTIONS