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avfilter: document mono option of silencedetect filter 

Also provide shorter option, and reorder options in documentation.
This commit is contained in:
Paul B Mahol 2018-09-23 23:10:51 +02:00
parent db6b4b56b3
commit a9485d7318
2 changed files with 8 additions and 4 deletions
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9
doc/filters.texi
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@ -4171,12 +4171,15 @@ The printed times and duration are expressed in seconds.
The filter accepts the following options:
@table @option
@item duration, d
Set silence duration until notification (default is 2 seconds).
@item noise, n
Set noise tolerance. Can be specified in dB (in case "dB" is appended to the
specified value) or amplitude ratio. Default is -60dB, or 0.001.
@item duration, d
Set silence duration until notification (default is 2 seconds).
@item mono, m
Process each channel separately, instead of combined. By default is disabled.
@end table
@subsection Examples

3
libavfilter/af_silencedetect.c
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@ -57,7 +57,8 @@ static const AVOption silencedetect_options[] = {
{ "noise", "set noise tolerance", OFFSET(noise), AV_OPT_TYPE_DOUBLE, {.dbl=0.001}, 0, DBL_MAX, FLAGS },
{ "d", "set minimum duration in seconds", OFFSET(duration), AV_OPT_TYPE_DOUBLE, {.dbl=2.}, 0, 24*60*60, FLAGS },
{ "duration", "set minimum duration in seconds", OFFSET(duration), AV_OPT_TYPE_DOUBLE, {.dbl=2.}, 0, 24*60*60, FLAGS },
{ "mono", "check each channel separately", OFFSET(mono), AV_OPT_TYPE_BOOL, {.i64=0.}, 0, 1, FLAGS },
{ "mono", "check each channel separately", OFFSET(mono), AV_OPT_TYPE_BOOL, {.i64=0.}, 0, 1, FLAGS },
{ "m", "check each channel separately", OFFSET(mono), AV_OPT_TYPE_BOOL, {.i64=0.}, 0, 1, FLAGS },
{ NULL }
};