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| author | Paul B Mahol <onemda@gmail.com> | 2017-05-14 11:59:04 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2017-05-14 11:59:04 +0200 |
| commit | 69b83f599224932a94d56081d008d373e1e51709 (patch) | |
| tree | a08ebf57a3502597b5fb0f0ba9d33342093ec96f | |
| parent | 8630b2cd36c57918acfe18302fe77d1ceefbd676 (diff) | |
| download | ffmpeg-69b83f599224932a94d56081d008d373e1e51709.tar.gz | |
avfilter/af_compand: fix default companding to avoid clipping
Signed-off-by: Paul B Mahol <onemda@gmail.com>
| -rw-r--r-- | doc/filters.texi | 2 | ||||
| -rw-r--r-- | libavfilter/af_compand.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 5985db6021..0ea4e26998 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2080,7 +2080,7 @@ the following syntax: @code{x0/y0|x1/y1|x2/y2|....} or The input values must be in strictly increasing order but the transfer function does not have to be monotonically rising. The point @code{0/0} is assumed but may be overridden (by @code{0/out-dBn}). Typical values for the transfer -function are @code{-70/-70|-60/-20}. +function are @code{-70/-70|-60/-20|1/0}. @item soft-knee Set the curve radius in dB for all joints. It defaults to 0.01. diff --git a/libavfilter/af_compand.c b/libavfilter/af_compand.c index 2acaa99ea2..8ff0ff9465 100644 --- a/libavfilter/af_compand.c +++ b/libavfilter/af_compand.c @@ -74,7 +74,7 @@ typedef struct CompandContext { static const AVOption compand_options[] = { { "attacks", "set time over which increase of volume is determined", OFFSET(attacks), AV_OPT_TYPE_STRING, { .str = "0.3" }, 0, 0, A }, { "decays", "set time over which decrease of volume is determined", OFFSET(decays), AV_OPT_TYPE_STRING, { .str = "0.8" }, 0, 0, A }, - { "points", "set points of transfer function", OFFSET(points), AV_OPT_TYPE_STRING, { .str = "-70/-70|-60/-20" }, 0, 0, A }, + { "points", "set points of transfer function", OFFSET(points), AV_OPT_TYPE_STRING, { .str = "-70/-70|-60/-20|1/0" }, 0, 0, A }, { "soft-knee", "set soft-knee", OFFSET(curve_dB), AV_OPT_TYPE_DOUBLE, { .dbl = 0.01 }, 0.01, 900, A }, { "gain", "set output gain", OFFSET(gain_dB), AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, -900, 900, A }, { "volume", "set initial volume", OFFSET(initial_volume), AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, -900, 0, A }, |