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fix unused warning for channel up/downmix

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Zach Pomerantz 2017-01-20 14:35:43 -05:00
parent 75281099bd
commit 280ed04f74
2 changed files with 28 additions and 30 deletions
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28
libraries/audio-client/src/AudioClient.cpp
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@ -117,6 +117,34 @@ void AudioInjectorsThread::prepare() {
_audio->prepareLocalAudioInjectors();
}
static void channelUpmix(int16_t* source, int16_t* dest, int numSamples, int numExtraChannels) {
for (int i = 0; i < numSamples/2; i++) {
// read 2 samples
int16_t left = *source++;
int16_t right = *source++;
// write 2 + N samples
*dest++ = left;
*dest++ = right;
for (int n = 0; n < numExtraChannels; n++) {
*dest++ = 0;
}
}
}
static void channelDownmix(int16_t* source, int16_t* dest, int numSamples) {
for (int i = 0; i < numSamples/2; i++) {
// read 2 samples
int16_t left = *source++;
int16_t right = *source++;
// write 1 sample
*dest++ = (int16_t)((left + right) / 2);
}
}
AudioClient::AudioClient() :
AbstractAudioInterface(),
_gate(this),

30
libraries/shared/src/AudioHelpers.h
View file

@ -103,34 +103,4 @@ static inline void convertToScratch(int16_t* scratchBuffer, const float* mixBuff
}
}
static void channelUpmix(int16_t* source, int16_t* dest, int numSamples, int numExtraChannels) {
for (int i = 0; i < numSamples/2; i++) {
// read 2 samples
int16_t left = *source++;
int16_t right = *source++;
// write 2 + N samples
*dest++ = left;
*dest++ = right;
for (int n = 0; n < numExtraChannels; n++) {
*dest++ = 0;
}
}
}
static void channelDownmix(int16_t* source, int16_t* dest, int numSamples) {
for (int i = 0; i < numSamples/2; i++) {
// read 2 samples
int16_t left = *source++;
int16_t right = *source++;
// write 1 sample
*dest++ = (int16_t)((left + right) / 2);
}
}
#endif // hifi_AudioHelpers_h