From 56d2d2d01a96ed801517f826285f4c9877f46db3 Mon Sep 17 00:00:00 2001 From: Benjamin Larsson Date: Wed, 30 Aug 2006 18:28:41 +0000 Subject: [PATCH] PPM vhook documentation, by Victor Paesa. wzrlpy at arsystel dot com Originally committed as revision 6132 to svn://svn.ffmpeg.org/ffmpeg/trunk --- doc/hooks.texi | 11 +++++++++++ 1 file changed, 11 insertions(+) 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