highperfocused/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

doc/filters: add missing details to aphasemeter

Browse Source 
First output is audio and is rematrixed to stereo
This commit is contained in:
Gyan Doshi 2018-07-16 11:20:22 +05:30
parent cd86b5cfe2
commit b8c4d2b2ed
1 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
doc/filters.texi
View File

@ -18435,9 +18435,15 @@ Default is @code{replace}.
@section aphasemeter @section aphasemeter
Convert input audio to a video output, displaying the audio phase. Measures phase of input audio, which is exported as metadata @code{lavfi.aphasemeter.phase},
representing mean phase of current audio frame. A video output can also be produced and is
enabled by default. The audio is passed through as first output.
The filter accepts the following options: Audio will be rematrixed to stereo if it has a different channel layout. Phase value is in
range @code{[-1, 1]} where @code{-1} means left and right channels are completely out of phase
and @code{1} means channels are in phase.
The filter accepts the following options, all related to its video output:
@table @option @table @option
@item rate, r @item rate, r
@ -18463,11 +18469,6 @@ Set color which will be used for drawing median phase. If color is
Enable video output. Default is enabled. Enable video output. Default is enabled.
@end table @end table
The filter also exports the frame metadata @code{lavfi.aphasemeter.phase} which
represents mean phase of current audio frame. Value is in range @code{[-1, 1]}.
The @code{-1} means left and right channels are completely out of phase and
@code{1} means channels are in phase.
@section avectorscope @section avectorscope
Convert input audio to a video output, representing the audio vector Convert input audio to a video output, representing the audio vector