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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-22 23:34:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-29 00:45:28 +0200 |
| commit | 75918016ab16cd69973e818759f027e78022dee4 (patch) | |
| tree | 96ae70cca0034af82757ab433f01e368a7d33d69 /libavutil/mathematics.h | |
| parent | 0c78b0dd3b59384a1bebc6bcb89cbca48667cb55 (diff) | |
Move bessel_i0() from swresample/resample to avutil/mathematics
0th order modified bessel function of the first kind are used in multiple
places, lets avoid having 3+ different implementations
I picked this one as its accurate and quite fast, it can be replaced if
a better one is found
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavutil/mathematics.h')
| -rw-r--r-- | libavutil/mathematics.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h index 3e7b52eed6..e213bab68c 100644 --- a/libavutil/mathematics.h +++ b/libavutil/mathematics.h @@ -288,6 +288,10 @@ int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int */ int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc); +/** + * 0th order modified bessel function of the first kind. + */ +double av_bessel_i0(double x); /** * @} |