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| author | Gyan Doshi <ffmpeg@gyani.pro> | 2019-11-22 19:55:35 +0530 |
|---|---|---|
| committer | Gyan Doshi <ffmpeg@gyani.pro> | 2019-11-22 19:55:35 +0530 |
| commit | 1b78da449e20f35f2016bb72aedec64bdb87ec89 (patch) | |
| tree | b1436cf6d7dd3ca41a48c5cc5b39f60af80a13d9 | |
| parent | 27c6c925344e00c1a72ba8bb2b5cdd32cb1a2655 (diff) | |
| download | ffmpeg-1b78da449e20f35f2016bb72aedec64bdb87ec89.tar.gz | |
doc/filters: complete and correct vmafmotion section
| -rw-r--r-- | doc/filters.texi | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 1f86ae1c9a..21cb2a527d 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -19315,16 +19315,23 @@ vignette='PI/4+random(1)*PI/50':eval=frame @section vmafmotion -Obtain the average vmaf motion score of a video. -It is one of the component filters of VMAF. +Obtain the average VMAF motion score of a video. +It is one of the component metrics of VMAF. The obtained average motion score is printed through the logging system. -In the below example the input file @file{ref.mpg} is being processed and score -is computed. +The filter accepts the following options: + +@table @option +@item stats_file +If specified, the filter will use the named file to save the motion score of +each frame with respect to the previous frame. +When filename equals "-" the data is sent to standard output. +@end table +Example: @example -ffmpeg -i ref.mpg -lavfi vmafmotion -f null - +ffmpeg -i ref.mpg -vf vmafmotion -f null - @end example @section vstack |