You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
OpenAudio_ArduinoLibrary/AudioMixer_F32.cpp

61 lines
1.5 KiB

#include "AudioMixer_F32.h"
void AudioMixer4_F32::update(void) {
audio_block_f32_t *in, *out=NULL;
out = receiveWritable_f32(0);
if (!out) return;
arm_scale_f32(out->data, multiplier[0], out->data, out->length);
for (int channel=1; channel < 4; channel++) {
in = receiveReadOnly_f32(channel);
if (!in) {
continue;
}
audio_block_f32_t *tmp = allocate_f32();
arm_scale_f32(in->data, multiplier[channel], tmp->data, tmp->length);
arm_add_f32(out->data, tmp->data, out->data, tmp->length);
AudioStream_F32::release(tmp);
AudioStream_F32::release(in);
}
if (out) {
AudioStream_F32::transmit(out);
AudioStream_F32::release(out);
}
}
void AudioMixer8_F32::update(void) {
audio_block_f32_t *in, *out=NULL;
out = receiveWritable_f32(0); //try to get the first input channel
if (!out) return; //if it's not there, return immediately
arm_scale_f32(out->data, multiplier[0], out->data, out->length); //scale the first input channel
//load and process the rest of the channels
for (int channel=1; channel < 8; channel++) {
in = receiveReadOnly_f32(channel);
if (!in) {
continue;
}
audio_block_f32_t *tmp = allocate_f32();
arm_scale_f32(in->data, multiplier[channel], tmp->data, tmp->length);
arm_add_f32(out->data, tmp->data, out->data, tmp->length);
AudioStream_F32::release(tmp);
AudioStream_F32::release(in);
}
if (out) {
AudioStream_F32::transmit(out);
AudioStream_F32::release(out);
}
}