[FFmpeg-cvslog] doc/filters: move volumedetect documentation below volume

Stefano Sabatini git at videolan.org
Sat Dec 8 15:44:41 CET 2012


ffmpeg | branch: master | Stefano Sabatini <stefasab at gmail.com> | Sat Dec  8 12:08:38 2012 +0100| [64e174e8b8975e36827a84c6d9adb6f161bc734f] | committer: Stefano Sabatini

doc/filters: move volumedetect documentation below volume

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=64e174e8b8975e36827a84c6d9adb6f161bc734f
---

 doc/filters.texi |   80 +++++++++++++++++++++++++++---------------------------
 1 file changed, 40 insertions(+), 40 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 56a213c..1a2efcd 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.
 
- at 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:
- at 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
- at end example
-
-It means that:
- at itemize
- at item
-The mean square energy is approximately -27 dB, or 10^-2.7.
- at item
-The largest sample is at -4 dB, or more precisely between -4 dB and -5 dB.
- at item
-There are 6 samples at -4 dB, 62 at -5 dB, 286 at -6 dB, etc.
- at 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
 
+ at 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:
+ at 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
+ at end example
+
+It means that:
+ at itemize
+ at item
+The mean square energy is approximately -27 dB, or 10^-2.7.
+ at item
+The largest sample is at -4 dB, or more precisely between -4 dB and -5 dB.
+ at item
+There are 6 samples at -4 dB, 62 at -5 dB, 286 at -6 dB, etc.
+ at 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



More information about the ffmpeg-cvslog mailing list