From 82ecae8a7069104698d491000b37629cd8d96fd8 Mon Sep 17 00:00:00 2001 From: Steven Robertson Date: Tue, 10 Jul 2012 22:14:57 -0700 Subject: lavfi: add alphaextract and alphamerge filters These filters are designed for storing and transmitting video sequences with alpha using higher-efficiency codecs such as x264 which don't natively support an alpha channel. 'alphaextract' takes an input stream with an alpha channel and returns a video containing just the alpha component as a grayscale value; 'alphamerge' takes an RGB or YUV stream and adds an alpha channel recovered from a second grayscale stream. Signed-off-by: Steven Robertson Signed-off-by: Stefano Sabatini --- libavfilter/allfilters.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'libavfilter/allfilters.c') diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 706405ebc0..aad453446c 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -64,6 +64,8 @@ void avfilter_register_all(void) REGISTER_FILTER (ABUFFERSINK, abuffersink, asink); REGISTER_FILTER (ANULLSINK, anullsink, asink); + REGISTER_FILTER (ALPHAEXTRACT, alphaextract, vf); + REGISTER_FILTER (ALPHAMERGE, alphamerge, vf); REGISTER_FILTER (ASS, ass, vf); REGISTER_FILTER (BBOX, bbox, vf); REGISTER_FILTER (BLACKDETECT, blackdetect, vf); -- cgit v1.2.3