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doc/filters: add metadata information for blackframe 

Reviewed-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Lou Logan <lou@lrcd.com>
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Martin Vignali 2016-10-23 17:16:12 +02:00 committed by Lou Logan
parent 2d9433ded9
commit d0d6902444
1 changed files with 4 additions and 0 deletions
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doc/filters.texi
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@ -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