ffmpeg | branch: master | James Almer <[email protected]> | Sat Aug 20 01:03:00 2016 -0300| [27ee70290ef4c032bff5c1dd7c0db2f6d17018fe] | committer: James Almer
avfilter/window_func: use a constant instead of acosh() Should fix compilation with non C99 compilers like msvc 2012, where acosh() is not available. Reviewed-by: Paul B Mahol <[email protected]> Signed-off-by: James Almer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=27ee70290ef4c032bff5c1dd7c0db2f6d17018fe --- libavfilter/window_func.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/window_func.c b/libavfilter/window_func.c index fcdf6ea..acf1b20 100644 --- a/libavfilter/window_func.c +++ b/libavfilter/window_func.c @@ -117,7 +117,7 @@ void ff_generate_window_func(float *lut, int N, int win_func, float *overlap) *overlap = 0.33; break; case WFUNC_DOLPH: { - double b = cosh(acosh(pow(10., 3)) / (N-1)), sum, t, c, norm = 0; + double b = cosh(7.6009022095419887 / (N-1)), sum, t, c, norm = 0; int j; for (c = 1 - 1 / (b*b), n = (N-1) / 2; n >= 0; --n) { for (sum = !n, b = t = j = 1; j <= n && sum != t; b *= (n-j) * (1./j), ++j) _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
