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obs-filters: Use audio-math.h for db conversions

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jp9000
2015-06-26 03:10:39 -07:00
parent 546b189f05
commit 8bb84cdb3b
1 changed files with 3 additions and 22 deletions
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25
plugins/obs-filters/noise-gate-filter.c
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@@ -1,15 +1,7 @@
#include <media-io/audio-math.h>
#include <obs-module.h>
#include <math.h>
#ifdef _MSC_VER
#include <float.h>
#ifndef finite
#define finite _finite
#endif
#endif
#define do_log(level, format, ...) \
blog(level, "[noise gate: '%s'] " format, \
obs_source_get_name(ng->context), ##__VA_ARGS__)
@@ -52,17 +44,6 @@ struct noise_gate_data {
#define VOL_MIN -96.0f
#define VOL_MAX 0.0f
static inline float rms_to_db(float rms)
{
float db = 20.0f * log10f(rms);
return finite(db) ? db : VOL_MIN;
}
static inline float db_to_rms(float db)
{
return powf(10.0f, db / 20.0f);
}
static const char *noise_gate_name(void)
{
return obs_module_text("NoiseGate");
@@ -98,8 +79,8 @@ static void noise_gate_update(void *data, obs_data_t *s)
ng->sample_rate_i = 1.0f / sample_rate;
ng->channels = audio_output_get_channels(obs_get_audio());
ng->open_threshold = db_to_rms(open_threshold_db);
ng->close_threshold = db_to_rms(close_threshold_db);
ng->open_threshold = db_to_mul(open_threshold_db);
ng->close_threshold = db_to_mul(close_threshold_db);
ng->attack_rate = 1.0f / (ms_to_secf(attack_time_ms) * sample_rate);
ng->release_rate = 1.0f / (ms_to_secf(release_time_ms) * sample_rate);