int RtInOut( void* outputBuffer, void* inputBuffer, unsigned int framesPerBuffer,
double streamTime, RtAudioStreamStatus status, void *userdata )
{
if(!UNTZ::System::get()->getData()->isActive())
{
memset(outputBuffer, 0, sizeof(float) * framesPerBuffer * UNTZ::System::get()->getData()->getNumOutputChannels());
return 0;
}
if(status)
std::cout << "Stream underflow detected!" << std::endl;
AudioMixer *mixer = (AudioMixer*)userdata;
mixer->process(0, NULL, UNTZ::System::get()->getData()->getNumOutputChannels(), (float*)outputBuffer, framesPerBuffer);
// volume & clipping
// HBS
UInt32 samples = UNTZ::System::get()->getData()->getNumOutputChannels() * framesPerBuffer;
float volume = mixer->getVolume();
// TODO: doing an extra read/write here is painful...
float *outB = (float*)outputBuffer;
for (UInt32 k = 0; k < samples; ++k)
{
float val = *outB * volume;
val = val > 1.0 ? 1.0 : val;
val = val < -1.0 ? -1.0 : val;
*(outB)++ = val;
}
return 0;
}
static void EmptyAudioCallback(void * userdata, unsigned char * stream, int length)
{
SDL_memset(stream, 0, length);
AudioMixer * mixer = (class AudioMixer *)userdata;
if (mixer)
{
mixer->Mix(stream, length);
}
}
void CSgSelectionPreparationBar::OnReleasedcaptureAudioSlider(NMHDR* pNMHDR, LRESULT* pResult)
{
if (m_pAvGrabber) {
AudioMixer *pAudioMixer = m_pAvGrabber->getAudioMixer();
if (pAudioMixer) {
UINT nCode = pNMHDR->code;
pAudioMixer->setVolume(100 - m_sldAudioInputLevel.GetPos());
}
}
*pResult = 0;
}
/***********************************
* startMixingAudio
* Crea el thread de mezclado de audio
************************************/
void *AudioMixer::startMixingAudio(void *par)
{
Log("-MixAudioThread [%d]\n",getpid());
//Obtenemos el parametro
AudioMixer *am = (AudioMixer *)par;
//Bloqueamos las se�ales
blocksignals();
//Ejecutamos
pthread_exit((void *)am->MixAudio());
}
//DWORD WINAPI AudioMixer::mixerEventThread(LPVOID param)
void __cdecl AudioMixer::mixerEventThread(LPVOID param)
{
CLanguageSupport::SetThreadLanguage();
AudioMixer* mixer = (AudioMixer*) param;
mixer->mixerEventThreadExited_ = false;
while (!mixer->eventThreadQuitRequest_)
{
WaitForSingleObject(mixer->mixerEvent_, INFINITE);
ResetEvent(mixer->mixerEvent_);
if (!mixer->eventThreadQuitRequest_ && mixer->isEnabled())
(*(mixer->lpMixerCallback_)) (mixer->mixerHwnd_, 0, 0, 0);
}
mixer->mixerEventThreadExited_ = true;
cout << "+-+-+-+-+-+-+-+-+-+ priscilla has followed" << endl;
return; // 0;
}
int RtInOut( void* outputBuffer, void* inputBuffer, unsigned int framesPerBuffer,
double streamTime, RtAudioStreamStatus status, void *userdata )
{
LinuxSystemData *sysData = (LinuxSystemData *)userdata;
UInt32 numOutputChannels = UNTZ::System::get()->getData()->getNumOutputChannels();
UInt32 samples = numOutputChannels * framesPerBuffer;
if(!UNTZ::System::get()->getData()->isActive())
{
memset(outputBuffer, 0, sizeof(float) * samples);
return 0;
}
if(sysData->mOutputBuffer.size() < samples)
{
sysData->mOutputBuffer.resize(samples);
}
float *mixerOutputBuffer = (float*)&sysData->mOutputBuffer[0];
if(status)
std::cout << "Stream underflow detected!" << std::endl;
AudioMixer *mixer = &sysData->mMixer;
mixer->process(0, NULL, numOutputChannels, mixerOutputBuffer, framesPerBuffer);
// volume & clipping & interleaving
float volume = mixer->getVolume();
float *outB = (float*)outputBuffer;
for(UInt32 i=0; i<framesPerBuffer; i++)
{
for(UInt32 j=0; j<numOutputChannels; j++)
{
float val = volume * mixerOutputBuffer[j*framesPerBuffer+i];
val = val > 1.0 ? 1.0 : val;
val = val < -1.0 ? -1.0 : val;
*(outB)++ = val;
}
}
return 0;
}
void CSgSelectionPreparationBar::OnUpdateAudioSlider(CCmdUI *pCmdUI)
{
if (m_pAvGrabber &&
m_pAvGrabber->getAudioMixer() &&
m_pAvGrabber->getAudioMixer()->getSourceCount() > 0)
pCmdUI->Enable(true);
else
pCmdUI->Enable(false);
if (m_pAvGrabber && GetKeyState(VK_LBUTTON) >= 0) // left mouse not key pressed)
{
AudioMixer *pAudioMixer = m_pAvGrabber->getAudioMixer();
if (pAudioMixer) {
UINT nMixerVolume = pAudioMixer->getVolume();
if (nMixerVolume < 0)
nMixerVolume = 0;
if (nMixerVolume > 100)
nMixerVolume = 100;
m_sldAudioInputLevel.SetPos(100 - nMixerVolume);
}
}
}
int main(int argc, char* argv[]) {
const char* const progname = argv[0];
bool useInputFloat = false;
bool useMixerFloat = false;
bool useRamp = true;
uint32_t outputSampleRate = 48000;
uint32_t outputChannels = 2; // stereo for now
std::vector<int> Pvalues;
const char* outputFilename = NULL;
const char* auxFilename = NULL;
std::vector<int32_t> names;
std::vector<SignalProvider> providers;
std::vector<audio_format_t> formats;
for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) {
switch (ch) {
case 'f':
useInputFloat = true;
break;
case 'm':
useMixerFloat = true;
break;
case 'c':
outputChannels = atoi(optarg);
break;
case 's':
outputSampleRate = atoi(optarg);
break;
case 'o':
outputFilename = optarg;
break;
case 'a':
auxFilename = optarg;
break;
case 'P':
if (parseCSV(optarg, Pvalues) < 0) {
fprintf(stderr, "incorrect syntax for -P option\n");
return EXIT_FAILURE;
}
break;
case '?':
default:
usage(progname);
return EXIT_FAILURE;
}
}
argc -= optind;
argv += optind;
if (argc == 0) {
usage(progname);
return EXIT_FAILURE;
}
size_t outputFrames = 0;
// create providers for each track
names.resize(argc);
providers.resize(argc);
formats.resize(argc);
for (int i = 0; i < argc; ++i) {
static const char chirp[] = "chirp:";
static const char sine[] = "sine:";
static const double kSeconds = 1;
bool useFloat = useInputFloat;
if (!strncmp(argv[i], chirp, strlen(chirp))) {
std::vector<int> v;
const char *s = parseFormat(argv[i] + strlen(chirp), &useFloat);
parseCSV(s, v);
if (v.size() == 2) {
printf("creating chirp(%d %d)\n", v[0], v[1]);
if (useFloat) {
providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds);
formats[i] = AUDIO_FORMAT_PCM_FLOAT;
} else {
providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds);
formats[i] = AUDIO_FORMAT_PCM_16_BIT;
}
providers[i].setIncr(Pvalues);
} else {
fprintf(stderr, "malformed input '%s'\n", argv[i]);
}
} else if (!strncmp(argv[i], sine, strlen(sine))) {
std::vector<int> v;
const char *s = parseFormat(argv[i] + strlen(sine), &useFloat);
parseCSV(s, v);
if (v.size() == 3) {
printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]);
if (useFloat) {
providers[i].setSine<float>(v[0], v[1], v[2], kSeconds);
formats[i] = AUDIO_FORMAT_PCM_FLOAT;
} else {
providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds);
formats[i] = AUDIO_FORMAT_PCM_16_BIT;
}
providers[i].setIncr(Pvalues);
} else {
fprintf(stderr, "malformed input '%s'\n", argv[i]);
}
} else {
printf("creating filename(%s)\n", argv[i]);
if (useInputFloat) {
providers[i].setFile<float>(argv[i]);
formats[i] = AUDIO_FORMAT_PCM_FLOAT;
} else {
providers[i].setFile<short>(argv[i]);
formats[i] = AUDIO_FORMAT_PCM_16_BIT;
}
providers[i].setIncr(Pvalues);
}
// calculate the number of output frames
size_t nframes = (int64_t) providers[i].getNumFrames() * outputSampleRate
/ providers[i].getSampleRate();
if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames
outputFrames = nframes;
}
}
// create the output buffer.
const size_t outputFrameSize = outputChannels
* (useMixerFloat ? sizeof(float) : sizeof(int16_t));
const size_t outputSize = outputFrames * outputFrameSize;
const audio_channel_mask_t outputChannelMask =
audio_channel_out_mask_from_count(outputChannels);
void *outputAddr = NULL;
(void) posix_memalign(&outputAddr, 32, outputSize);
memset(outputAddr, 0, outputSize);
// create the aux buffer, if needed.
const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always
const size_t auxSize = outputFrames * auxFrameSize;
void *auxAddr = NULL;
if (auxFilename) {
(void) posix_memalign(&auxAddr, 32, auxSize);
memset(auxAddr, 0, auxSize);
}
// create the mixer.
const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960
AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate);
audio_format_t mixerFormat = useMixerFloat
? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
float f = AudioMixer::UNITY_GAIN_FLOAT / providers.size(); // normalize volume by # tracks
static float f0; // zero
// set up the tracks.
for (size_t i = 0; i < providers.size(); ++i) {
//printf("track %d out of %d\n", i, providers.size());
uint32_t channelMask = audio_channel_out_mask_from_count(providers[i].getNumChannels());
const int name = i;
const status_t status = mixer->create(
name, channelMask, formats[i], AUDIO_SESSION_OUTPUT_MIX);
LOG_ALWAYS_FATAL_IF(status != OK);
names[i] = name;
mixer->setBufferProvider(name, &providers[i]);
mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
(void *)outputAddr);
mixer->setParameter(
name,
AudioMixer::TRACK,
AudioMixer::MIXER_FORMAT,
(void *)(uintptr_t)mixerFormat);
mixer->setParameter(
name,
AudioMixer::TRACK,
AudioMixer::FORMAT,
(void *)(uintptr_t)formats[i]);
mixer->setParameter(
name,
AudioMixer::TRACK,
AudioMixer::MIXER_CHANNEL_MASK,
(void *)(uintptr_t)outputChannelMask);
mixer->setParameter(
name,
AudioMixer::TRACK,
AudioMixer::CHANNEL_MASK,
(void *)(uintptr_t)channelMask);
mixer->setParameter(
name,
AudioMixer::RESAMPLE,
AudioMixer::SAMPLE_RATE,
(void *)(uintptr_t)providers[i].getSampleRate());
if (useRamp) {
mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0);
mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0);
mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f);
mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f);
} else {
mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f);
mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f);
}
if (auxFilename) {
mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
(void *) auxAddr);
mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0);
mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f);
}
mixer->enable(name);
}
// pump the mixer to process data.
size_t i;
for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) {
for (size_t j = 0; j < names.size(); ++j) {
mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
(char *) outputAddr + i * outputFrameSize);
if (auxFilename) {
mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
(char *) auxAddr + i * auxFrameSize);
}
}
mixer->process();
}
outputFrames = i; // reset output frames to the data actually produced.
// write to files
writeFile(outputFilename, outputAddr,
outputSampleRate, outputChannels, outputFrames, useMixerFloat);
if (auxFilename) {
// Aux buffer is always in q4_27 format for O and earlier.
// memcpy_to_i16_from_q4_27((int16_t*)auxAddr, (const int32_t*)auxAddr, outputFrames);
// Aux buffer is always in float format for P.
memcpy_to_i16_from_float((int16_t*)auxAddr, (const float*)auxAddr, outputFrames);
writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false);
}
delete mixer;
free(outputAddr);
free(auxAddr);
return EXIT_SUCCESS;
}
//mix two wav file to a wav file
void test_mixwave()
{
InitMediaCommon(NULL, NULL, NULL, NULL);
CAudioCodec* pAudioEncoder = CreateAudioCodec(kAudioCodecFDKAAC, kEncoder);
if(NULL == pAudioEncoder)
{
printf("create audio decoder failed. codec type: kAudioCodecFDKAAC.\r\n");
return;
}
AudioCodecParam audioFormat;
audioFormat.iSampleRate = 44100;
audioFormat.iBitsOfSample=16;
audioFormat.iNumOfChannels = 2;
audioFormat.iQuality = 5;
audioFormat.iProfile = 29;
audioFormat.iHaveAdts = 1;
audioFormat.ExtParam.iUsevbr = true;
audioFormat.ExtParam.iUsedtx = true;
audioFormat.ExtParam.iCvbr = true;
audioFormat.ExtParam.iUseInbandfec = true;
audioFormat.ExtParam.iPacketlossperc = 25;
audioFormat.ExtParam.iComplexity = 8;
audioFormat.ExtParam.iFrameDuration = 20*10;
if(NULL == pAudioEncoder->Init(&audioFormat))
{
printf("init audio decoder failed.\r\n");
return;
}
int iEncOutSize=0;
pAudioEncoder->CalcBufSize(&iEncOutSize, 0);
unsigned char* pAudioEncBuf = (unsigned char*)malloc(iEncOutSize);
char* pRtmpUrl = (char*)"rtmp://101.201.146.134/hulu/w_test.flv";
int ret = 0;
int iAudioFramePos=0;
u_int32_t timestamp=0;
IWriter* pRtmpWriter = CreateWriter(pRtmpUrl);
pRtmpWriter->Open(pRtmpUrl, NULL);
int input_size = 2*2*2048;
AudioStreamFormat asf;
asf.flag = 0;
asf.sampleRate = 44100;
asf.sampleBits= 16;
asf.channelNum = 2;
int iAudioTS = 0;
double iAudioFrameBufLen = (double)asf.sampleRate * asf.channelNum * asf.sampleBits /8/1000;
double dAudioFrameTSLen = (double)input_size/iAudioFrameBufLen;
AudioMixer* pAMix = AudioMixer::CreateAudioMixer(asf, 2);
//open wav file
int format, sample_rate, channels, bits_per_sample;
uint8_t* input_buf_1 = (uint8_t*) malloc(input_size);
int16_t* convert_buf_1 = (int16_t*) malloc(input_size);
uint8_t* input_buf_2 = (uint8_t*) malloc(input_size);
int16_t* convert_buf_2 = (int16_t*) malloc(input_size);
uint8_t* output_buf = (uint8_t*) malloc(input_size);
AudioMixer::AudioDataInfo adInfo[2];
const char* pwavfilename1="input1.wav";
const char* pwavfilename2="input2.wav";
void *wav1= wav_read_open(pwavfilename1);
void *wav2= wav_read_open(pwavfilename2);
FILE *pfOutWav = fopen("output.pcm", "wb");;
if (NULL != wav1)
{
printf("open wav file %s ok\n", pwavfilename1);
if (!wav_get_header(wav1, &format, &channels, &sample_rate, &bits_per_sample, NULL)) {
return ;
}
if (format != 1 || bits_per_sample != 16) {
printf("Unsupported WAV format %d\n", format);
return ;
}
}
if (NULL != wav2)
{
printf("open wav file %s ok\n", pwavfilename1);
if (!wav_get_header(wav2, &format, &channels, &sample_rate, &bits_per_sample, NULL)) {
return ;
}
if (format != 1 || bits_per_sample != 16) {
printf("Unsupported WAV format %d\n", format);
return ;
}
}
int read1 = 0;
int read2 = 0;
if(wav1)
{
//this data is for offset
read1 = wav_read_data(wav1, input_buf_1, input_size);
read1 = wav_read_data(wav1, input_buf_1, input_size);
read1 = wav_read_data(wav1, input_buf_1, input_size);
read1 = wav_read_data(wav1, input_buf_1, input_size);
read1 = wav_read_data(wav1, input_buf_1, input_size);
}
struct timeval tv1;
struct timeval tv2;
//read wav file and mix wav file
while (1) {
if(wav1)
read1 = wav_read_data(wav1, input_buf_1, input_size);
if(wav1 && read1 <= 0)
{
break;
}
else if(read1 <=0 ){
memset(input_buf_1,0,input_size);
}
/*
//not use is ok
for (int i = 0; i < read1/2; i++) {
const uint8_t* in = &input_buf_1[2*i];
convert_buf_1[i] = in[0] | (in[1] << 8);
}
*/
if(wav2)
read2 = wav_read_data(wav2, input_buf_2, input_size);
if(wav2 && read2 <= 0)
break;
else if(read2 <=0 ){
memset(input_buf_2,0,input_size);
}
/*
//not use is ok
for (int i = 0; i < read2/2; i++) {
const uint8_t* in = &input_buf_2[2*i];
convert_buf_2[i] = in[0] | (in[1] << 8);
}
*/
adInfo[0]._bufferSize = adInfo[0]._leftLength = input_size;
adInfo[0]._leftData = input_buf_1;
adInfo[0]._enabled = true;
adInfo[1]._bufferSize = adInfo[1]._leftLength = input_size;
adInfo[1]._leftData = input_buf_2;
adInfo[1]._enabled = true;
int packetLen = channels*bits_per_sample/8;
int packnum = input_size/packetLen;
gettimeofday(&tv1, NULL);
pAMix->MixData(output_buf, packnum, packetLen, 0, adInfo, 2);
gettimeofday(&tv2, NULL);
printf("mix wav file len:%d used:%dus.\r\n", input_size, ((tv2.tv_sec*1000*1000+tv2.tv_usec)-(tv1.tv_sec*1000*1000+tv1.tv_usec)));
//printf("mix data read1:%d read2:%d input_size:%d\r\n", read1, read2, input_size);
//write output wav file
// fwrite(output_buf, 1, input_size, pfOutWav);
//encoder to fdkaac
for (int i = 0; i < input_size/2; i++) {
const uint8_t* in = &output_buf[2*i];
convert_buf_1[i] = in[0] | (in[1] << 8);
}
int iAudioEncBufLen = iEncOutSize;
pAudioEncoder->Process((unsigned char*)convert_buf_1, input_size, pAudioEncBuf, &iAudioEncBufLen);
//send it to rtmp server
timestamp = iAudioFramePos * dAudioFrameTSLen;
pushaudio(pRtmpWriter, ×tamp, (char*)convert_buf_1, iAudioEncBufLen);
printf("push audio framePos:%d wavlen:%d timestamp:%d enclen:%d frametslen:%f\r\n", iAudioFramePos, input_size, timestamp, iAudioEncBufLen, dAudioFrameTSLen);
iAudioFramePos++;
usleep(40*1000);
}
if(wav1)
wav_read_close(wav1);
if(wav2)
wav_read_close(wav2);
if(pfOutWav)
fclose(pfOutWav);
}
void
AudioSegment::WriteTo(uint64_t aID, AudioMixer& aMixer, uint32_t aOutputChannels, uint32_t aSampleRate)
{
nsAutoTArray<AudioDataValue,AUDIO_PROCESSING_FRAMES*GUESS_AUDIO_CHANNELS> buf;
nsAutoTArray<const void*,GUESS_AUDIO_CHANNELS> channelData;
// Offset in the buffer that will end up sent to the AudioStream, in samples.
uint32_t offset = 0;
if (GetDuration() <= 0) {
MOZ_ASSERT(GetDuration() == 0);
return;
}
uint32_t outBufferLength = GetDuration() * aOutputChannels;
buf.SetLength(outBufferLength);
for (ChunkIterator ci(*this); !ci.IsEnded(); ci.Next()) {
AudioChunk& c = *ci;
uint32_t frames = c.mDuration;
// If we have written data in the past, or we have real (non-silent) data
// to write, we can proceed. Otherwise, it means we just started the
// AudioStream, and we don't have real data to write to it (just silence).
// To avoid overbuffering in the AudioStream, we simply drop the silence,
// here. The stream will underrun and output silence anyways.
if (c.mBuffer && c.mBufferFormat != AUDIO_FORMAT_SILENCE) {
channelData.SetLength(c.mChannelData.Length());
for (uint32_t i = 0; i < channelData.Length(); ++i) {
channelData[i] = c.mChannelData[i];
}
if (channelData.Length() < aOutputChannels) {
// Up-mix. Note that this might actually make channelData have more
// than aOutputChannels temporarily.
AudioChannelsUpMix(&channelData, aOutputChannels, gZeroChannel);
}
if (channelData.Length() > aOutputChannels) {
// Down-mix.
DownmixAndInterleave(channelData, c.mBufferFormat, frames,
c.mVolume, aOutputChannels, buf.Elements() + offset);
} else {
InterleaveAndConvertBuffer(channelData.Elements(), c.mBufferFormat,
frames, c.mVolume,
aOutputChannels,
buf.Elements() + offset);
}
} else {
// Assumes that a bit pattern of zeroes == 0.0f
memset(buf.Elements() + offset, 0, aOutputChannels * frames * sizeof(AudioDataValue));
}
offset += frames * aOutputChannels;
#if !defined(MOZILLA_XPCOMRT_API)
if (!c.mTimeStamp.IsNull()) {
TimeStamp now = TimeStamp::Now();
// would be more efficient to c.mTimeStamp to ms on create time then pass here
LogTime(AsyncLatencyLogger::AudioMediaStreamTrack, aID,
(now - c.mTimeStamp).ToMilliseconds(), c.mTimeStamp);
}
#endif // !defined(MOZILLA_XPCOMRT_API)
}
if (offset) {
aMixer.Mix(buf.Elements(), aOutputChannels, offset / aOutputChannels, aSampleRate);
}
}
void init_audio_synth()
{
AudioOutput::Buffer buf;
buf.dataSize = BUFFER_SIZE * CHANNEL_NUM * sizeof(int16_t);
buf.data = (uint8_t *)&g_outBuf[0][0];
g_audioOut.add_buffer(&buf);
buf.data = (uint8_t *)&g_outBuf[1][0];
g_audioOut.add_buffer(&buf);
g_audioOut.set_source(&g_audioOutConverter);
AudioBuffer audioBuf(&g_audioBuf[0], BUFFER_SIZE);
g_audioOutConverter.set_buffer(audioBuf);
g_audioOutConverter.set_source(&g_mixer);
g_kickSeq.set_sample_rate(kSampleRate);
g_kickSeq.set_tempo(100.0f);
// g_kickSeq.set_sequence("x---x---x---x-x-x---x---x---x---xx--x--x--xxx-x-");
g_kickSeq.set_sequence("x---------x---------"); //x-x----xx---");
g_kickSeq.init();
g_kickGen.set_sample_rate(kSampleRate);
g_kickGen.set_sequence(&g_kickSeq);
g_kickGen.set_freq(50.0f);
g_kickGen.enable_sustain(false);
g_kickGen.init();
g_kickGen.set_attack(0.01f);
g_kickGen.set_release(0.6f);
g_bassSeq.set_sample_rate(kSampleRate);
g_bassSeq.set_tempo(100.0f);
g_bassSeq.set_sequence("--s>>>>p--------"); //"--s>>>p-----s>>>>>>p----");
g_bassSeq.init();
g_bassGen.set_sample_rate(kSampleRate);
g_bassGen.set_sequence(&g_bassSeq);
g_bassGen.set_freq(80.0f);
g_bassGen.enable_sustain(true);
g_bassGen.init();
g_bassGen.set_attack(0.3f);
g_bassGen.set_release(3.0f);
g_filter.set_sample_rate(kSampleRate);
g_filter.set_frequency(120.0f);
g_filter.set_q(0.4f);
g_filter.recompute_coefficients();
g_filter.set_input(&g_bassGen);
g_delay.set_sample_rate(kSampleRate);
g_delay.set_maximum_delay_seconds(0.4f);
g_delay.set_delay_samples(g_kickSeq.get_samples_per_beat());
g_delay.set_feedback(0.7f);
g_delay.set_wet_mix(0.5f);
g_delay.set_dry_mix(0.8f);
g_delay.set_input(&g_kickGen);
AudioBuffer mixBuf(&g_mixBuf[0], BUFFER_SIZE);
g_mixer.set_buffer(mixBuf);
g_mixer.set_input_count(2);
g_mixer.set_input(0, &g_delay, 0.5f);
g_mixer.set_input(1, &g_bassGen, 0.34f);
// g_mixer.set_input(2, &g_tickGen, 0.3f);
}