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doc/filters: update blackframe options description.

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Clément Bœsch 2013-04-12 10:46:33 +02:00
parent 80116b6e67
commit 8876b0816d
1 changed files with 5 additions and 9 deletions
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doc/filters.texi
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@ -1907,21 +1907,17 @@ 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 In order to display the output lines, you need to set the loglevel at
least to the AV_LOG_INFO value. least to the AV_LOG_INFO value.
The filter accepts parameters as a list of @var{key}=@var{value}
pairs, separated by ":". If the key of the first options is omitted,
the arguments are interpreted according to the syntax
blackframe[=@var{amount}[:@var{threshold}]].
The filter accepts the following options: The filter accepts the following options:
@table @option @table @option
@item amount @item amount
The percentage of the pixels that have to be below the threshold, defaults to Set the percentage of the pixels that have to be below the threshold, defaults
98. to @code{98}.
@item threshold @item threshold, thresh
Threshold below which a pixel value is considered black, defaults to 32. Set the threshold below which a pixel value is considered black, defaults to
@code{32}.
@end table @end table