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| author | Ramiro Polla <ramiro.polla@gmail.com> | 2007-06-18 22:17:37 +0000 |
|---|---|---|
| committer | Ramiro Polla <ramiro.polla@gmail.com> | 2007-06-18 22:17:37 +0000 |
| commit | 6f17637634c3b84c087216fdc50cd5b594ee17ed (patch) | |
| tree | e2ff8e7479c3ea03bcb6e9380c87464360804851 /doc/hooks.texi | |
| parent | f32adb22def9af695add203baa63cf8b18816d9c (diff) | |
| download | ffmpeg-6f17637634c3b84c087216fdc50cd5b594ee17ed.tar.gz | |
Add alpha channel support for imlib2 vhook
Originally committed as revision 9365 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/hooks.texi')
| -rw-r--r-- | doc/hooks.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/hooks.texi b/doc/hooks.texi index a92edc4a55..e7b54d1268 100644 --- a/doc/hooks.texi +++ b/doc/hooks.texi @@ -158,6 +158,14 @@ Usage examples: In this example, the color for the text goes up and down from black to white. + # Text fade-out + ffmpeg -i input.avi -vhook \ + 'vhook/imlib2.so -t Hello -A max(0,255-exp(N/47))' \ + -sameq output.avi + + In this example, the text fades out in about 10 seconds for a 25 fps input + video file. + # scrolling credits from a graphics file ffmpeg -sameq -i input.avi \ -vhook 'vhook/imlib2.so -x 0 -y -1.0*N -i credits.png' output.avi |