diff options
| author | Paul B Mahol <onemda@gmail.com> | 2021-08-06 22:03:07 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2021-08-07 13:08:48 +0200 |
| commit | 6b11c12cf33b9761c3ac460737728228e86e9f04 (patch) | |
| tree | fdbeda96f21d02d868093ff7ab2eedff34311ba3 /doc | |
| parent | e01d306c647b5827102260b885faa223b646d2d1 (diff) | |
avfilter/avf_showspectrum: improve dBFS scale legend
Make it more intuitive looking and correct for non-log scaling.
Add option to set upper limit of input audio value in dBFS.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 790d165433..f5099f2b7f 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -26916,8 +26916,12 @@ Set upper frame rate limit. Default is @code{auto}, unlimited. Draw time and frequency axes and legends. Default is disabled. @item drange -Set dynamic range used to calculate intensity color values. Default is 120dBFS. +Set dynamic range used to calculate intensity color values. Default is 120 dBFS. Allowed range is from 10 to 200. + +@item limit +Set upper limit of input audio samples volume in dBFS. Default is 0 dBFS. +Allowed range is from -100 to 100. @end table The usage is very similar to the showwaves filter; see the examples in that @@ -27093,8 +27097,12 @@ Set start frequency from which to display spectrogram. Default is @code{0}. Set stop frequency to which to display spectrogram. Default is @code{0}. @item drange -Set dynamic range used to calculate intensity color values. Default is 120dBFS. +Set dynamic range used to calculate intensity color values. Default is 120 dBFS. Allowed range is from 10 to 200. + +@item limit +Set upper limit of input audio samples volume in dBFS. Default is 0 dBFS. +Allowed range is from -100 to 100. @end table @subsection Examples |