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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/libavfilter.texi | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/doc/libavfilter.texi b/doc/libavfilter.texi index 5bb5b1a84d..766b77f083 100644 --- a/doc/libavfilter.texi +++ b/doc/libavfilter.texi @@ -36,11 +36,10 @@ 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] +./ffmpeg -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 |