From 7b7037e5b035d8805972982d54441663a25bb016 Mon Sep 17 00:00:00 2001 From: Ashish Pratap Singh Date: Mon, 6 Nov 2017 07:49:33 -0500 Subject: avfilter:vf_libvmaf: improve docs. Signed-off-by: Ronald S. Bultje --- doc/filters.texi | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'doc/filters.texi') diff --git a/doc/filters.texi b/doc/filters.texi index 6f6dfcff48..2ba6e04166 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -9885,25 +9885,16 @@ distances from the focal point in the source and target images, respectively. @section libvmaf -Obtain the average VMAF (Video Multi-Method Assessment Fusion) +Obtain the VMAF (Video Multi-Method Assessment Fusion) score between two input videos. -This filter takes two input videos. - -Both video inputs 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 VMAF score is printed through the logging system. +The obtained VMAF score is printed through the logging system. It requires Netflix's vmaf library (libvmaf) as a pre-requisite. After installing the library it can be enabled using: @code{./configure --enable-libvmaf}. If no model path is specified it uses the default model: @code{vmaf_v0.6.1.pkl}. -On the below examples the input file @file{main.mpg} being processed is -compared with the reference file @file{ref.mpg}. - The filter has following options: @table @option @@ -9934,12 +9925,14 @@ Enables computing ssim along with vmaf. Enables computing ms_ssim along with vmaf. @item pool -Set the pool method to be used for computing vmaf. +Set the pool method (mean, min or harmonic mean) to be used for computing vmaf. @end table This filter also supports the @ref{framesync} options. -For example: +On the below examples 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 libvmaf -f null - @end example -- cgit v1.2.3