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authorBenjamin Larsson <banan@ludd.ltu.se>2006-08-30 18:28:41 +0000
committerBenjamin Larsson <banan@ludd.ltu.se>2006-08-30 18:28:41 +0000
commit56d2d2d01a96ed801517f826285f4c9877f46db3 (patch)
treed2d40e0dc7b60296509629a96551ac2866f09f8d /doc/hooks.texi
parente645a733a63225c0dcaf3dc73bd058985406a5c2 (diff)
PPM vhook documentation, by Victor Paesa.
wzrlpy at arsystel dot com Originally committed as revision 6132 to svn://svn.ffmpeg.org/ffmpeg/trunk
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diff --git a/doc/hooks.texi b/doc/hooks.texi
index a9c1255ec3..bd817e7f9c 100644
--- a/doc/hooks.texi
+++ b/doc/hooks.texi
@@ -45,5 +45,16 @@ This allows a caption to be placed onto each frame. It supports inserting the
time and date. By using the imlib functions, it would be easy to add your own
graphical logo, add a frame/border, etc.
+@section ppm.c
+
+It's basically a launch point for a PPM pipe, so you can use any
+executable (or script) which consumes a PPM on stdin and produces a PPM
+on stdout (and flushes each frame).
+
+Usage example:
+
+@example
+ffmpeg -i input -vhook "/path/to/ppm.so some-ppm-filter args" output
+@end example
@bye