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authorPaul B Mahol <onemda@gmail.com>2018-03-06 19:47:29 +0100
committerPaul B Mahol <onemda@gmail.com>2018-03-11 13:43:33 +0100
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parent2536bd863246218631ab27144d8a3be45036445a (diff)
downloadffmpeg-streaming-8fb0e51bd198c996b8932735e8002f0952ef1d06.zip
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avfilter: add drmeter audio filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@@ -2538,6 +2538,21 @@ Optional. It should have a value much less than 1 (e.g. 0.05 or 0.02) and is
used to prevent clipping.
@end table
+@section drmeter
+Measure audio dynamic range.
+
+DR values of 14 and higher is found in very dynamic material. DR of 8 to 13
+is found in transition material. And anything less that 8 have very poor dynamics
+and is very compressed.
+
+The filter accepts the following options:
+
+@table @option
+@item length
+Set window length in seconds used to split audio into segments of equal length.
+Default is 3 seconds.
+@end table
+
@section dynaudnorm
Dynamic Audio Normalizer.
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