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#include "audio_effect_panner.h"
void AudioEffectPannerInstance::process(const AudioFrame *p_src_frames,AudioFrame *p_dst_frames,int p_frame_count) {
float lvol = CLAMP( 1.0 - base->pan, 0, 1);
float rvol = CLAMP( 1.0 + base->pan, 0, 1);
for(int i=0;i<p_frame_count;i++) {
p_dst_frames[i].l = p_src_frames[i].l * lvol + p_src_frames[i].r * (1.0 - rvol);
p_dst_frames[i].r = p_src_frames[i].r * rvol + p_src_frames[i].l * (1.0 - lvol);
}
}
Ref<AudioEffectInstance> AudioEffectPanner::instance() {
Ref<AudioEffectPannerInstance> ins;
ins.instance();
ins->base=Ref<AudioEffectPanner>(this);
return ins;
}
void AudioEffectPanner::set_pan(float p_cpanume) {
pan=p_cpanume;
}
float AudioEffectPanner::get_pan() const {
return pan;
}
void AudioEffectPanner::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_pan","cpanume"),&AudioEffectPanner::set_pan);
ClassDB::bind_method(D_METHOD("get_pan"),&AudioEffectPanner::get_pan);
ADD_PROPERTY(PropertyInfo(Variant::REAL,"pan",PROPERTY_HINT_RANGE,"-1,1,0.01"),"set_pan","get_pan");
}
AudioEffectPanner::AudioEffectPanner()
{
pan=0;
}
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