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| author | Nicolas George <nicolas.george@normalesup.org> | 2012-02-23 14:32:27 +0100 |
|---|---|---|
| committer | Nicolas George <nicolas.george@normalesup.org> | 2012-03-21 15:52:45 +0100 |
| commit | 3493390d4787089edd71cde7114c587a2bc134b8 (patch) | |
| tree | 30605b538ef1043320882dee056f62d02635abcb /doc/filters.texi | |
| parent | 7084985173ac7fa2873088aafbf9c6f1db8076d4 (diff) | |
lavfi: add tile video filter.
Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 2863f8cf2a..ac3e841457 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2682,6 +2682,22 @@ Complete example of a thumbnail creation with @command{ffmpeg}: ffmpeg -i in.avi -vf thumbnail,scale=300:200 -frames:v 1 out.png @end example +@section tile + +Tile several successive frames together. + +It accepts as argument the tile size (i.e. the number of lines and columns) +in the form "@var{w}x@var{h}". + +For example, produce 8×8 PNG tiles of all keyframes (@option{-skip_frame +nokey}) in a movie: +@example +ffmpeg -skip_frame nokey -i file.avi -vf 'scale=128:72,tile=8x8' -an -vsync 0 keyframes%03d.png +@end example +The @option{-vsync 0} is necessary to prevent @command{ffmpeg} from +duplicating each output frame to accomodate the originally detected frame +rate. + @section tinterlace Perform various types of temporal field interlacing. |