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author | Paul B Mahol <onemda@gmail.com> | 2021-03-03 15:21:04 +0100 |
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committer | Paul B Mahol <onemda@gmail.com> | 2021-03-06 12:41:30 +0100 |
commit | 4a69cd4e4eba490b7e1ce33b45662e26d87a6a18 (patch) | |
tree | dcef53514caf1250fdc12e01b531f1427590fdc8 /doc | |
parent | dc20b27802a4db3e46952b53c3aa8f331beffd37 (diff) |
avfilter: add identity video filter
Diffstat (limited to 'doc')
-rw-r--r-- | doc/filters.texi | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 426cb158da..38698b6542 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -13382,6 +13382,28 @@ By default value is 0. The @code{hysteresis} filter also supports the @ref{framesync} options. +@section identity + +Obtain the identity score 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 per component, average, min and max identity score is printed through +the logging system. + +The filter stores the calculated identity scores of each frame in frame metadata. + +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 identity -f null - +@end example + @section idet Detect video interlacing type. |