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| -rw-r--r-- | doc/filters.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index d1ee6f4c3e..974febddbd 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -4539,6 +4539,10 @@ the position in the file if known or -1 and the timestamp in seconds. In order to display the output lines, you need to set the loglevel at least to the AV_LOG_INFO value. +This filter exports frame metadata @code{lavfi.blackframe.pblack}. +The value represents the percentage of pixels in the picture that +are below the threshold value. + It accepts the following parameters: @table @option |