ffmpeg | branch: master | Limin Wang | Fri Dec 10
18:15:46 2021 +0800| [571e8ca2ddb90a05e0e0091110f8aeed78620edd] | committer:
Limin Wang
avfilter/af_astats: improve options descriptions
Signed-off-by: Limin Wang
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=571e8ca2ddb90a05e0e0091110f8aeed78620edd
---
doc/filters.texi| 7 ---
libavfilter/af_astats.c | 6 +++---
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index cffec8168c..da95688c53 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2962,16 +2962,17 @@ this @code{lavfi.astats.Overall.Peak_count}.
For description what each key means read below.
@item reset
-Set number of frame after which stats are going to be recalculated.
+Set the number of frames over which cumulative stats are calculated before
+being reset
Default is disabled.
@item measure_perchannel
-Select the entries which need to be measured per channel. The metadata keys can
+Select the parameters which are measured per channel. The metadata keys can
be used as flags, default is @option{all} which measures everything.
@option{none} disables all per channel measurement.
@item measure_overall
-Select the entries which need to be measured overall. The metadata keys can
+Select the parameters which are measured overall. The metadata keys can
be used as flags, default is @option{all} which measures everything.
@option{none} disables all overall measurement.
diff --git a/libavfilter/af_astats.c b/libavfilter/af_astats.c
index d0810b5dd4..6c79257cb4 100644
--- a/libavfilter/af_astats.c
+++ b/libavfilter/af_astats.c
@@ -114,8 +114,8 @@ typedef struct AudioStatsContext {
static const AVOption astats_options[] = {
{ "length", "set the window length", OFFSET(time_constant),
AV_OPT_TYPE_DOUBLE, {.dbl=.05}, 0, 10, FLAGS },
{ "metadata", "inject metadata in the filtergraph", OFFSET(metadata),
AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
-{ "reset", "recalculate stats after this many frames",
OFFSET(reset_count), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
-{ "measure_perchannel", "only measure_perchannel these per-channel
statistics", OFFSET(measure_perchannel), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL},
0, UINT_MAX, FLAGS, "measure" },
+{ "reset", "Set the number of frames over which cumulative stats are
calculated before being reset", OFFSET(reset_count), AV_OPT_TYPE_INT, {.i64=0},
0, INT_MAX, FLAGS },
+{ "measure_perchannel", "Select the parameters which are measured per
channel", OFFSET(measure_perchannel), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL}, 0,
UINT_MAX, FLAGS, "measure" },
{ "none" , "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_NONE}, 0, 0, FLAGS, "measure" },
{ "all" , "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_ALL }, 0, 0, FLAGS, "measure" },
{ "DC_offset" , "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_DC_OFFSET }, 0, 0, FLAGS, "measure" },
@@ -143,7 +143,7 @@ static const AVOption astats_options[] = {
{ "Number_of_NaNs", "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_NUMBER_OF_NANS }, 0, 0, FLAGS, "measure" },
{ "Number_of_Infs", "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_NUMBER_OF_INFS }, 0, 0, FLAGS, "measure" },
{ "Number_of_denormals" , "", 0, AV_OPT_TYPE_CONST,
{.i64=MEASURE_NUMBER_OF_DENORMALS }, 0, 0, FLAGS, "measure" },
-{ "measure_overall", "only measure_perchannel these overall statistics",
OFFSET(measure_overall), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL}, 0, UINT_MAX,
FLAGS, "measure" },
+{ "measure_overall", "Select the parameters which are measured overall",
OFFSET(measure_overall), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL}, 0, UINT_MAX,
FLAGS, "measure" },
{ NULL }
};
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