void rate_controller::do_initialize()
{
stream=sonicCreateStream(sample_rate,1);
if(stream==0)
throw std::bad_alloc();
sonicSetSpeed(stream,rate);
}
speech_stream::speech_stream(int sample_rate,double speed):
buffer_size(0.1*sample_rate),
start_offset(0),
offset(0),
sonic_stream(0)
{
if(speed!=1)
{
sonic_stream=sonicCreateStream(sample_rate,1);
if(!sonic_stream)
throw std::bad_alloc();
sonicSetSpeed(sonic_stream,speed);
}
}
/* Run sonic. */
static void runSonic(
waveFile inFile,
waveFile outFile,
float speed,
float pitch,
float rate,
float volume,
int emulateChordPitch,
int quality,
int sampleRate,
int numChannels)
{
sonicStream stream = sonicCreateStream(sampleRate, numChannels);
short inBuffer[BUFFER_SIZE], outBuffer[BUFFER_SIZE];
int samplesRead, samplesWritten;
sonicSetSpeed(stream, speed);
sonicSetPitch(stream, pitch);
sonicSetRate(stream, rate);
sonicSetVolume(stream, volume);
sonicSetChordPitch(stream, emulateChordPitch);
sonicSetQuality(stream, quality);
do {
samplesRead = readFromWaveFile(inFile, inBuffer, BUFFER_SIZE/numChannels);
if(samplesRead == 0) {
sonicFlushStream(stream);
} else {
sonicWriteShortToStream(stream, inBuffer, samplesRead);
}
do {
samplesWritten = sonicReadShortFromStream(stream, outBuffer,
BUFFER_SIZE/numChannels);
if(samplesWritten > 0) {
writeToWaveFile(outFile, outBuffer, samplesWritten);
}
} while(samplesWritten > 0);
} while(samplesRead > 0);
sonicDestroyStream(stream);
}
TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount,
audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) :
mChannelCount(channelCount),
mFormat(format),
mSampleRate(sampleRate),
mFrameSize(channelCount * audio_bytes_per_sample(format)),
mLocalBufferFrameCount(0),
mLocalBufferData(NULL),
mRemaining(0),
mSonicStream(sonicCreateStream(sampleRate, mChannelCount)),
mFallbackFailErrorShown(false),
mAudioPlaybackRateValid(false)
{
LOG_ALWAYS_FATAL_IF(mSonicStream == NULL,
"TimestretchBufferProvider can't allocate Sonic stream");
setPlaybackRate(playbackRate);
ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)",
this, channelCount, format, sampleRate, playbackRate.mSpeed,
playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode);
mBuffer.frameCount = 0;
}
/* Initialize the C data structure */
jlong Java_org_vinuxproject_sonic_Sonic_initNative(
JNIEnv *env,
jobject thiz,
jint sampleRate,
jint channels)
{
sonicInst inst = (sonicInst)calloc(1, sizeof(struct sonicInstStruct));
if(inst == NULL) {
return 0;
}
LOGV("Creating sonic stream");
inst->stream = sonicCreateStream(sampleRate, channels);
if(inst->stream == NULL) {
return 0;
}
inst->byteBufSize = 100;
inst->byteBuf = (short *)calloc(inst->byteBufSize, sizeof(short));
if(inst->byteBuf == NULL) {
return 0;
}
return (jlong)((char *)inst - (char *)NULL);
}
