[FFmpeg-cvslog] doc/filters: add acrossover examples

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Fri Nov 27 14:27:06 2020 +0100| [1f754620079eda0577e0376b20229a130a66b93c] | committer: Paul B Mahol

doc/filters: add acrossover examples

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1f754620079eda0577e0376b20229a130a66b93c
---

 doc/filters.texi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index d594f6394a..b27eefb082 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -541,6 +541,29 @@ Set filter order. Availabe values are:
 Default is @var{4th}.
 @end table
 
+ at subsection Examples
+
+ at itemize
+ at item
+Split input audio stream into two bands (low and high) with split frequency of 1500 Hz,
+each band will be in separate stream:
+ at example
+ffmpeg -i in.flac -filter_complex 'acrossover=split=1500[LOW][HIGH]' -map '[LOW]' low.wav -map '[HIGH]' high.wav
+ at end example
+
+ at item
+Same as above, but with higher filter order:
+ at example
+ffmpeg -i in.flac -filter_complex 'acrossover=split=1500:order=4th[LOW][HIGH]' -map '[LOW]' low.wav -map '[HIGH]' high.wav
+ at end example
+
+ at item
+Same as above, but also with additional middle band (frequencies between 1500 and 8000):
+ at example
+ffmpeg -i in.flac -filter_complex 'acrossover=split=1500 8000:order=4th[LOW][MID][HIGH]' -map '[LOW]' low.wav -map '[MID]' mid.wav -map '[HIGH]' high.wav
+ at end example
+ at end itemize
+
 @section acrusher
 
 Reduce audio bit resolution.