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| author | Rui Zhu <real.zhurui@gmail.com> | 2022-08-31 20:51:06 +0800 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2022-11-09 11:56:01 +0100 |
| commit | 36572a0c1d12459cb0fddf6ff8023b79ffa2e100 (patch) | |
| tree | 3e58ec1222bfe5429f526607a048fdbf3344e5f5 /libavfilter/af_loudnorm.c | |
| parent | 86157f5a25615491c94b0498bf76040b268bad6b (diff) | |
| download | ffmpeg-36572a0c1d12459cb0fddf6ff8023b79ffa2e100.tar.gz | |
avfilter/af_loudnorm: fix incorrect gain when audio is shorter than 3s
The input data is multiplied by `s->offset` to get normalized output.
`s->target_tp` and `true_peak` is not in dB,
so `s->offset` should be calculated by division instead of subtraction.
Signed-off-by: Rui Zhu <real.zhurui@gmail.com>
Diffstat (limited to 'libavfilter/af_loudnorm.c')
| -rw-r--r-- | libavfilter/af_loudnorm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/af_loudnorm.c b/libavfilter/af_loudnorm.c index 8d2379f14e..ce61e985b1 100644 --- a/libavfilter/af_loudnorm.c +++ b/libavfilter/af_loudnorm.c @@ -455,7 +455,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) offset = pow(10., (s->target_i - global) / 20.); offset_tp = true_peak * offset; - s->offset = offset_tp < s->target_tp ? offset : s->target_tp - true_peak; + s->offset = offset_tp < s->target_tp ? offset : s->target_tp / true_peak; s->frame_type = LINEAR_MODE; } |