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Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index da36e8b1b8..387a05e6a7 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2433,6 +2433,40 @@ 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 tinterlace + +Perform various types of temporal field interlacing. + +Frames are counted starting from 1, so the first input frame is +considered odd. + +This filter accepts a single parameter specifying the mode. Available +modes are: + +@table @samp +@item 0 +Move odd frames into the upper field, even into the lower field, +generating a double height frame at half framerate. + +@item 1 +Only output even frames, odd frames are dropped, generating a frame with +unchanged height at half framerate. + +@item 2 +Only output odd frames, even frames are dropped, generating a frame with +unchanged height at half framerate. + +@item 3 +Expand each frame to full height, but pad alternate lines with black, +generating a frame with double height at the same input framerate. + +@item 4 +Interleave the upper field from odd frames with the lower field from +even frames, generating a frame with unchanged height at half framerate. +@end table + +Default mode is 0. + @section transpose Transpose rows with columns in the input video and optionally flip it. |