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authorStefano Sabatini <stefasab@gmail.com>2012-12-08 12:08:38 +0100
committerStefano Sabatini <stefasab@gmail.com>2012-12-08 15:41:12 +0100
commit64e174e8b8975e36827a84c6d9adb6f161bc734f (patch)
treeb9a5d9371a1214c40279516ede028c0e2c702c17 /doc
parent10db70d5e9c92f0464089476694d9a440cdac321 (diff)
doc/filters: move volumedetect documentation below volume
Diffstat (limited to 'doc')
-rw-r--r--doc/filters.texi80
1 files changed, 40 insertions, 40 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 56a213ccc6..1a2efcd7b5 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -829,46 +829,6 @@ out
Convert the audio sample format, sample rate and channel layout. This filter is
not meant to be used directly.
-@section volumedetect
-
-Detect the volume of the input video.
-
-The filter has no parameters. The input is not modified. Statistics about
-the volume will be printed in the log when the input stream end is reached.
-
-In particular it will show the mean volume (root mean square), maximum
-volume (on a per-sample basis), and the beginning of an histogram of the
-registered volume values (from the maximum value to a cumulated 1/1000 of
-the samples).
-
-All volumes are in decibels relative to the maximum PCM value.
-
-Here is an excerpt of the output:
-@example
-[Parsed_volumedetect_0 @ 0xa23120] mean_volume: -27 dB
-[Parsed_volumedetect_0 @ 0xa23120] max_volume: -4 dB
-[Parsed_volumedetect_0 @ 0xa23120] histogram_4db: 6
-[Parsed_volumedetect_0 @ 0xa23120] histogram_5db: 62
-[Parsed_volumedetect_0 @ 0xa23120] histogram_6db: 286
-[Parsed_volumedetect_0 @ 0xa23120] histogram_7db: 1042
-[Parsed_volumedetect_0 @ 0xa23120] histogram_8db: 2551
-[Parsed_volumedetect_0 @ 0xa23120] histogram_9db: 4609
-[Parsed_volumedetect_0 @ 0xa23120] histogram_10db: 8409
-@end example
-
-It means that:
-@itemize
-@item
-The mean square energy is approximately -27 dB, or 10^-2.7.
-@item
-The largest sample is at -4 dB, or more precisely between -4 dB and -5 dB.
-@item
-There are 6 samples at -4 dB, 62 at -5 dB, 286 at -6 dB, etc.
-@end itemize
-
-In other words, raising the volume by +4 dB does not cause any clipping,
-raising it by +5 dB causes clipping for 6 samples, etc.
-
@section volume
Adjust the input audio volume.
@@ -934,6 +894,46 @@ volume=volume=6dB:precision=fixed
@end example
@end itemize
+@section volumedetect
+
+Detect the volume of the input video.
+
+The filter has no parameters. The input is not modified. Statistics about
+the volume will be printed in the log when the input stream end is reached.
+
+In particular it will show the mean volume (root mean square), maximum
+volume (on a per-sample basis), and the beginning of an histogram of the
+registered volume values (from the maximum value to a cumulated 1/1000 of
+the samples).
+
+All volumes are in decibels relative to the maximum PCM value.
+
+Here is an excerpt of the output:
+@example
+[Parsed_volumedetect_0 @ 0xa23120] mean_volume: -27 dB
+[Parsed_volumedetect_0 @ 0xa23120] max_volume: -4 dB
+[Parsed_volumedetect_0 @ 0xa23120] histogram_4db: 6
+[Parsed_volumedetect_0 @ 0xa23120] histogram_5db: 62
+[Parsed_volumedetect_0 @ 0xa23120] histogram_6db: 286
+[Parsed_volumedetect_0 @ 0xa23120] histogram_7db: 1042
+[Parsed_volumedetect_0 @ 0xa23120] histogram_8db: 2551
+[Parsed_volumedetect_0 @ 0xa23120] histogram_9db: 4609
+[Parsed_volumedetect_0 @ 0xa23120] histogram_10db: 8409
+@end example
+
+It means that:
+@itemize
+@item
+The mean square energy is approximately -27 dB, or 10^-2.7.
+@item
+The largest sample is at -4 dB, or more precisely between -4 dB and -5 dB.
+@item
+There are 6 samples at -4 dB, 62 at -5 dB, 286 at -6 dB, etc.
+@end itemize
+
+In other words, raising the volume by +4 dB does not cause any clipping,
+raising it by +5 dB causes clipping for 6 samples, etc.
+
@c man end AUDIO FILTERS
@chapter Audio Sources