[FFmpeg-cvslog] avfilter/af_crystalizer: improve filter description

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Mon Dec 21 11:34:40 2020 +0100| [c1c2e6f9682a14a97895d30cc0302ddf7985312b] | committer: Paul B Mahol

avfilter/af_crystalizer: improve filter description

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c1c2e6f9682a14a97895d30cc0302ddf7985312b
---

 doc/filters.texi             | 4 +++-
 libavfilter/af_crystalizer.c | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index b831b2d18e..2589ff4349 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -3682,7 +3682,9 @@ Set output gain. Default is 1.
 This filter supports the all above options as @ref{commands}.
 
 @section crystalizer
-Simple algorithm to expand audio dynamic range.
+Simple algorithm for audio noise sharpening.
+
+This filter linearly increases differences betweeen each audio sample.
 
 The filter accepts the following options:
 
diff --git a/libavfilter/af_crystalizer.c b/libavfilter/af_crystalizer.c
index f3d8ae6991..778357f9b7 100644
--- a/libavfilter/af_crystalizer.c
+++ b/libavfilter/af_crystalizer.c
@@ -305,7 +305,7 @@ static const AVFilterPad outputs[] = {
 
 AVFilter ff_af_crystalizer = {
     .name           = "crystalizer",
-    .description    = NULL_IF_CONFIG_SMALL("Simple expand audio dynamic range filter."),
+    .description    = NULL_IF_CONFIG_SMALL("Simple audio noise sharpening filter."),
     .query_formats  = query_formats,
     .priv_size      = sizeof(CrystalizerContext),
     .priv_class     = &crystalizer_class,