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author | Ashish Singh <ashk43712@gmail.com> | 2017-07-29 14:16:29 +0530 |
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committer | Paul B Mahol <onemda@gmail.com> | 2021-02-16 15:00:50 +0100 |
commit | 38aea9b0416f574757a56591b8a6f305cbc659ad (patch) | |
tree | 6c9d62ddeb3ce47d6ae05088d4e6e333b1eaeb7b /doc | |
parent | 8d209eb33c3ae900e913c6645603dfde435c59c1 (diff) |
avfilter: add vif filter
This is Visual Information Fidelity (VIF) filter and one of the component
filters of VMAF. It outputs the average VIF score over all frames.
Signed-off-by: Ashish Singh <ashk43712@gmail.com>
Diffstat (limited to 'doc')
-rw-r--r-- | doc/filters.texi | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 9dfc0ec67f..426cb158da 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -21266,6 +21266,27 @@ otherwise colors will be less saturated, more towards gray. This filter supports the all above options as @ref{commands}. +@section vif + +Obtain the average VIF (Visual Information Fidelity) between two input videos. + +This filter takes two input videos. + +Both input videos must have the same resolution and pixel format for +this filter to work correctly. Also it assumes that both inputs +have the same number of frames, which are compared one by one. + +The obtained average VIF score is printed through the logging system. + +The filter stores the calculated VIF score of each frame. + +In the below example the input file @file{main.mpg} being processed is compared +with the reference file @file{ref.mpg}. + +@example +ffmpeg -i main.mpg -i ref.mpg -lavfi vif -f null - +@end example + @anchor{vignette} @section vignette |