From 299809defb05eae093cb72da97dfbbb7e17e08fe Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Tue, 8 Nov 2011 11:37:58 -0800 Subject: doc: update libavfilter documentation Update the reference to the conversion tool to use avconv and make sure the example line works as supposed. Remove the paragraph pointing to the svn repo --- doc/libavfilter.texi | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) (limited to 'doc/libavfilter.texi') diff --git a/doc/libavfilter.texi b/doc/libavfilter.texi index 172b7fc4d0..b452294a5f 100644 --- a/doc/libavfilter.texi +++ b/doc/libavfilter.texi @@ -14,18 +14,6 @@ Libavfilter is the filtering API of Libav. It is the substitute of the now deprecated 'vhooks' and started as a Google Summer of Code project. -Integrating libavfilter into the main Libav repository is a work in -progress. If you wish to try the unfinished development code of -libavfilter then check it out from the libavfilter repository into -some directory of your choice by: - -@example - svn checkout svn://svn.libav.org/soc/libavfilter -@end example - -And then read the README file in the top directory to learn how to -integrate it into ffmpeg and avplay. - But note that there may still be serious bugs in the code and its API and ABI should not be considered stable yet! @@ -48,15 +36,14 @@ and the vflip filter before merging it back with the other stream by overlaying it on top. You can use the following command to achieve this: @example -./ffmpeg -i in.avi -s 240x320 -vf "[in] split [T1], fifo, [T2] overlay= 0:240 [out]; [T1] fifo, crop=0:0:-1:240, vflip [T2] +./avconv -i input -vf "[in] split [T1], fifo, [T2] overlay=0:H/2 [out]; [T1] fifo, crop=iw:ih/2:0:ih/2, vflip [T2]" output @end example -where input_video.avi has a vertical resolution of 480 pixels. The -result will be that in output the top half of the video is mirrored +The result will be that in output the top half of the video is mirrored onto the bottom half. Video filters are loaded using the @var{-vf} option passed to -ffmpeg or to avplay. Filters in the same linear chain are separated by +avconv or to avplay. Filters in the same linear chain are separated by commas. In our example, @var{split, fifo, overlay} are in one linear chain, and @var{fifo, crop, vflip} are in another. The points where the linear chains join are labeled by names enclosed in square -- cgit v1.2.3