ffmpeg | branch: master | Paul B Mahol <one...@gmail.com> | Tue Mar 15 19:08:43 2022 +0100| [77d20a0f7456b7020c403e5e1b81132ee56653e1] | committer: Paul B Mahol
avfilter/af_afftdn: remove excessive operations > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=77d20a0f7456b7020c403e5e1b81132ee56653e1 --- libavfilter/af_afftdn.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/libavfilter/af_afftdn.c b/libavfilter/af_afftdn.c index b1b3402bf2..ac2a499c7f 100644 --- a/libavfilter/af_afftdn.c +++ b/libavfilter/af_afftdn.c @@ -363,7 +363,7 @@ static void process_frame(AVFilterContext *ctx, int n = 0, i1; for (int i = 0; i < s->fft_length2; i++) { - double new_gain, mag, mag_abs_var, new_mag_abs_var; + double sqr_new_gain, new_gain, mag, mag_abs_var, new_mag_abs_var; mag = fft_data[i].re * fft_data[i].re + fft_data[i].im * fft_data[i].im; if (mag > sample_floor) @@ -373,10 +373,9 @@ static void process_frame(AVFilterContext *ctx, mag_abs_var = mag / abs_var[i]; new_mag_abs_var = ratio * prior[i] + rratio * fmax(mag_abs_var - 1.0, 0.0); new_gain = new_mag_abs_var / (1.0 + new_mag_abs_var); - new_gain *= (new_gain + M_PI_4 / fmax(mag_abs_var, 1.0E-6)); - prior[i] = mag_abs_var * new_gain; - dnch->clean_data[i] = mag * new_gain; - new_gain = sqrt(new_gain); + sqr_new_gain = new_gain * new_gain; + prior[i] = mag_abs_var * sqr_new_gain; + dnch->clean_data[i] = mag * sqr_new_gain; gain[i] = new_gain; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
