void SSRunMixer(void)
{
int bytes_copied;
int bytestogo;
int c;
int i;
int pos = read_sound_int(&SOUNDSTATUS->samplepos);
memset(tmp_sound_buffer, 0, sizeof(tmp_sound_buffer));
const int len = 2*SAMPLES_TO_BYTES(AUDIO_SIZE);
// get data for all channels and add it to the mix
for(c=0;c<SS_NUM_CHANNELS;c++)
{
if (channel[c].head==channel[c].tail) continue;
bytestogo = len;
mix_pos = 0;
while(bytestogo > 0)
{
bytes_copied = AddBuffer(&channel[c], bytestogo);
bytestogo -= bytes_copied;
if (channel[c].head==channel[c].tail)
{ // ran out of chunks before buffer full
// clear remaining portion of mixbuffer
if (bytestogo)
{
memset(&mixbuffer[mix_pos], 0, bytestogo);
}
break;
}
}
MixAudio(tmp_sound_buffer, mixbuffer, len, channel[c].volume);
}
// tell any callbacks that had a chunk finish, that their chunk finished
for(c=0;c<SS_NUM_CHANNELS;c++)
{
if (channel[c].FinishedCB)
{
for(i=0;i<channel[c].nFinishedChunks;i++)
{
//stat("Telling channel %d's handler that chunk %d finished", c, channel[c].FinishedChunkUserdata[i]);
(*channel[c].FinishedCB)(c, channel[c].FinishedChunkUserdata[i]);
}
}
channel[c].nFinishedChunks = 0;
}
memcpy4s(RING_BUF + pos, tmp_sound_buffer, SAMPLES_TO_BYTES(AUDIO_SIZE));
}
void ZeldaUCode::HandleMail_LightVersion(u32 mail)
{
//ERROR_LOG(DSPHLE, "Light version mail %08X, list in progress: %s, step: %i/%i",
// mail, m_list_in_progress ? "yes":"no", m_step, m_num_steps);
if (m_sync_cmd_pending)
{
DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
MixAudio();
m_current_buffer++;
if (m_current_buffer == m_num_buffers)
{
m_sync_cmd_pending = false;
DEBUG_LOG(DSPHLE, "Update the SoundThread to be in sync");
}
return;
}
if (!m_list_in_progress)
{
switch ((mail >> 24) & 0x7F)
{
case 0x00: m_num_steps = 1; break; // dummy
case 0x01: m_num_steps = 5; break; // DsetupTable
case 0x02: m_num_steps = 3; break; // DsyncFrame
default:
{
m_num_steps = 0;
PanicAlert("Zelda uCode (light version): unknown/unsupported command %02X", (mail >> 24) & 0x7F);
}
return;
}
m_list_in_progress = true;
m_step = 0;
}
if (m_step >= sizeof(m_buffer) / 4)
PanicAlert("m_step out of range");
((u32*)m_buffer)[m_step] = mail;
m_step++;
if (m_step >= m_num_steps)
{
ExecuteList();
m_list_in_progress = false;
}
}
void
AOS4_sound_handler::mix(boost::int16_t* outSamples, boost::int16_t* inSamples, unsigned int nSamples, float volume)
{
if (!_closing)
{
unsigned int nBytes = nSamples*2;
boost::uint8_t *out = reinterpret_cast<boost::uint8_t*>(outSamples);
boost::uint8_t* in = reinterpret_cast<boost::uint8_t*>(inSamples);
MixAudio(out, in, nBytes, static_cast<int>(MIX_MAXVOLUME*volume));
}
}
void ZeldaUCode::HandleMail_SMSVersion(u32 mail)
{
if (m_sync_in_progress)
{
if (m_sync_cmd_pending)
{
m_sync_flags[(m_num_sync_mail << 1) ] = mail >> 16;
m_sync_flags[(m_num_sync_mail << 1) + 1] = mail & 0xFFFF;
m_num_sync_mail++;
if (m_num_sync_mail == 2)
{
m_num_sync_mail = 0;
m_sync_in_progress = false;
MixAudio();
m_current_buffer++;
m_mail_handler.PushMail(DSP_SYNC);
DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
m_mail_handler.PushMail(0xF355FF00 | m_current_buffer);
if (m_current_buffer == m_num_buffers)
{
m_mail_handler.PushMail(DSP_FRAME_END);
// DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
m_sync_cmd_pending = false;
}
}
}
else
{
m_sync_in_progress = false;
}
return;
}
void OBS::MainAudioLoop()
{
const unsigned int audioSamplesPerSec = App->GetSampleRateHz();
const unsigned int audioSampleSize = audioSamplesPerSec/100;
DWORD taskID = 0;
HANDLE hTask = AvSetMmThreadCharacteristics(TEXT("Pro Audio"), &taskID);
bufferedAudioTimes.Clear();
bPushToTalkOn = false;
micMax = desktopMax = VOL_MIN;
micPeak = desktopPeak = VOL_MIN;
UINT audioFramesSinceMeterUpdate = 0;
UINT audioFramesSinceMicMaxUpdate = 0;
UINT audioFramesSinceDesktopMaxUpdate = 0;
List<float> mixBuffer, levelsBuffer;
mixBuffer.SetSize(audioSampleSize*2);
levelsBuffer.SetSize(audioSampleSize*2);
latestAudioTime = 0;
//---------------------------------------------
// the audio loop of doom
while (true) {
OSSleep(5); //screw it, just run it every 5ms
if (!bRunning)
break;
//-----------------------------------------------
float *desktopBuffer, *micBuffer;
curDesktopVol = desktopVol * desktopBoost;
if (bUsingPushToTalk)
curMicVol = bPushToTalkOn ? micVol : 0.0f;
else
curMicVol = micVol;
curMicVol *= micBoost;
bool bDesktopMuted = (curDesktopVol < EPSILON);
bool bMicEnabled = (micAudio != NULL);
while (QueryNewAudio()) {
QWORD timestamp = bufferedAudioTimes[0];
bufferedAudioTimes.Remove(0);
zero(mixBuffer.Array(), audioSampleSize*2*sizeof(float));
zero(levelsBuffer.Array(), audioSampleSize*2*sizeof(float));
//----------------------------------------------------------------------------
// get latest sample for calculating the volume levels
float *latestDesktopBuffer = NULL, *latestMicBuffer = NULL;
desktopAudio->GetBuffer(&desktopBuffer, timestamp);
desktopAudio->GetNewestFrame(&latestDesktopBuffer);
if (micAudio != NULL) {
micAudio->GetBuffer(&micBuffer, timestamp);
micAudio->GetNewestFrame(&latestMicBuffer);
}
//----------------------------------------------------------------------------
// mix desktop samples
if (desktopBuffer)
MixAudio(mixBuffer.Array(), desktopBuffer, audioSampleSize*2, false);
if (latestDesktopBuffer)
MixAudio(levelsBuffer.Array(), latestDesktopBuffer, audioSampleSize*2, false);
//----------------------------------------------------------------------------
// get latest aux volume level samples and mix
OSEnterMutex(hAuxAudioMutex);
for (UINT i=0; i<auxAudioSources.Num(); i++) {
float *latestAuxBuffer;
if(auxAudioSources[i]->GetNewestFrame(&latestAuxBuffer))
MixAudio(levelsBuffer.Array(), latestAuxBuffer, audioSampleSize*2, false);
}
//----------------------------------------------------------------------------
// mix output aux sound samples with the desktop
for (UINT i=0; i<auxAudioSources.Num(); i++) {
float *auxBuffer;
if(auxAudioSources[i]->GetBuffer(&auxBuffer, timestamp))
MixAudio(mixBuffer.Array(), auxBuffer, audioSampleSize*2, false);
}
OSLeaveMutex(hAuxAudioMutex);
//----------------------------------------------------------------------------
// multiply samples by volume and compute RMS and max of samples
// Use 1.0f instead of curDesktopVol, since aux audio sources already have their volume set, and shouldn't be boosted anyway.
float desktopRMS = 0, micRMS = 0, desktopMx = 0, micMx = 0;
if (latestDesktopBuffer)
CalculateVolumeLevels(levelsBuffer.Array(), audioSampleSize*2, 1.0f, desktopRMS, desktopMx);
if (bMicEnabled && latestMicBuffer)
CalculateVolumeLevels(latestMicBuffer, audioSampleSize*2, curMicVol, micRMS, micMx);
//----------------------------------------------------------------------------
// convert RMS and Max of samples to dB
desktopRMS = toDB(desktopRMS);
micRMS = toDB(micRMS);
desktopMx = toDB(desktopMx);
micMx = toDB(micMx);
//----------------------------------------------------------------------------
// update max if sample max is greater or after 1 second
float maxAlpha = 0.15f;
UINT peakMeterDelayFrames = audioSamplesPerSec * 3;
if (micMx > micMax)
micMax = micMx;
else
micMax = maxAlpha * micMx + (1.0f - maxAlpha) * micMax;
if(desktopMx > desktopMax)
desktopMax = desktopMx;
else
desktopMax = maxAlpha * desktopMx + (1.0f - maxAlpha) * desktopMax;
//----------------------------------------------------------------------------
// update delayed peak meter
if (micMax > micPeak || audioFramesSinceMicMaxUpdate > peakMeterDelayFrames) {
micPeak = micMax;
audioFramesSinceMicMaxUpdate = 0;
} else {
audioFramesSinceMicMaxUpdate += audioSampleSize;
}
if (desktopMax > desktopPeak || audioFramesSinceDesktopMaxUpdate > peakMeterDelayFrames) {
desktopPeak = desktopMax;
audioFramesSinceDesktopMaxUpdate = 0;
} else {
audioFramesSinceDesktopMaxUpdate += audioSampleSize;
}
//----------------------------------------------------------------------------
// low pass the level sampling
float rmsAlpha = 0.15f;
desktopMag = rmsAlpha * desktopRMS + desktopMag * (1.0f - rmsAlpha);
micMag = rmsAlpha * micRMS + micMag * (1.0f - rmsAlpha);
//----------------------------------------------------------------------------
// update the meter about every 50ms
audioFramesSinceMeterUpdate += audioSampleSize;
if (audioFramesSinceMeterUpdate >= (audioSampleSize*5)) {
PostMessage(hwndMain, WM_COMMAND, MAKEWPARAM(ID_MICVOLUMEMETER, VOLN_METERED), 0);
audioFramesSinceMeterUpdate = 0;
}
//----------------------------------------------------------------------------
// mix mic and desktop sound
// also, it's perfectly fine to just mix into the returned buffer
if (bMicEnabled && micBuffer)
MixAudio(mixBuffer.Array(), micBuffer, audioSampleSize*2, bForceMicMono);
EncodeAudioSegment(mixBuffer.Array(), audioSampleSize, timestamp);
}
//-----------------------------------------------
if (!bRecievedFirstAudioFrame && pendingAudioFrames.Num())
bRecievedFirstAudioFrame = true;
}
desktopMag = desktopMax = desktopPeak = VOL_MIN;
micMag = micMax = micPeak = VOL_MIN;
PostMessage(hwndMain, WM_COMMAND, MAKEWPARAM(ID_MICVOLUMEMETER, VOLN_METERED), 0);
for (UINT i=0; i<pendingAudioFrames.Num(); i++)
pendingAudioFrames[i].audioData.Clear();
AvRevertMmThreadCharacteristics(hTask);
}
void OBS::MainAudioLoop()
{
DWORD taskID = 0;
HANDLE hTask = AvSetMmThreadCharacteristics(TEXT("Pro Audio"), &taskID);
bPushToTalkOn = false;
micMax = desktopMax = VOL_MIN;
micPeak = desktopPeak = VOL_MIN;
UINT audioFramesSinceMeterUpdate = 0;
UINT audioFramesSinceMicMaxUpdate = 0;
UINT audioFramesSinceDesktopMaxUpdate = 0;
List<float> mixedLatestDesktopSamples;
List<float> blank10msSample;
blank10msSample.SetSize(882);
QWORD lastAudioTime = 0;
while(TRUE)
{
OSSleep(5); //screw it, just run it every 5ms
if(!bRunning)
break;
//-----------------------------------------------
float *desktopBuffer, *micBuffer;
UINT desktopAudioFrames = 0, micAudioFrames = 0;
UINT latestDesktopAudioFrames = 0, latestMicAudioFrames = 0;
curDesktopVol = desktopVol * desktopBoost;
if(bUsingPushToTalk)
curMicVol = bPushToTalkOn ? micVol : 0.0f;
else
curMicVol = micVol;
curMicVol *= micBoost;
bool bDesktopMuted = (curDesktopVol < EPSILON);
bool bMicEnabled = (micAudio != NULL);
QWORD timestamp;
while(QueryNewAudio(timestamp))
{
if (!lastAudioTime)
lastAudioTime = App->GetSceneTimestamp();
if (lastAudioTime < timestamp) {
while ((lastAudioTime+=10) < timestamp)
EncodeAudioSegment(blank10msSample.Array(), 441, lastAudioTime);
}
//----------------------------------------------------------------------------
// get latest sample for calculating the volume levels
float *latestDesktopBuffer = NULL, *latestMicBuffer = NULL;
desktopAudio->GetBuffer(&desktopBuffer, &desktopAudioFrames, timestamp-10);
desktopAudio->GetNewestFrame(&latestDesktopBuffer, &latestDesktopAudioFrames);
UINT totalFloats = desktopAudioFrames*2;
if(bDesktopMuted)
{
// Clearing the desktop audio buffer before mixing in the auxiliary audio sources.
zero(desktopBuffer, sizeof(*desktopBuffer)*totalFloats);
}
if(micAudio != NULL)
{
micAudio->GetBuffer(&micBuffer, &micAudioFrames, timestamp-10);
micAudio->GetNewestFrame(&latestMicBuffer, &latestMicAudioFrames);
}
//----------------------------------------------------------------------------
// get latest aux volume level samples and mix
OSEnterMutex(hAuxAudioMutex);
mixedLatestDesktopSamples.CopyArray(latestDesktopBuffer, latestDesktopAudioFrames*2);
for(UINT i=0; i<auxAudioSources.Num(); i++)
{
float *latestAuxBuffer;
if(auxAudioSources[i]->GetNewestFrame(&latestAuxBuffer, &latestDesktopAudioFrames))
MixAudio(mixedLatestDesktopSamples.Array(), latestAuxBuffer, latestDesktopAudioFrames*2, false);
}
//----------------------------------------------------------------------------
// mix output aux sound samples with the desktop
for(UINT i=0; i<auxAudioSources.Num(); i++)
{
float *auxBuffer;
if(auxAudioSources[i]->GetBuffer(&auxBuffer, &desktopAudioFrames, timestamp-10))
MixAudio(desktopBuffer, auxBuffer, desktopAudioFrames*2, false);
}
OSLeaveMutex(hAuxAudioMutex);
//----------------------------------------------------------------------------
//UINT totalFloats = desktopAudioFrames*2;
//----------------------------------------------------------------------------
/*multiply samples by volume and compute RMS and max of samples*/
float desktopRMS = 0, micRMS = 0, desktopMx = 0, micMx = 0;
// Use 1.0f instead of curDesktopVol, since aux audio sources already have their volume set, and shouldn't be boosted anyway.
if(latestDesktopBuffer)
CalculateVolumeLevels(mixedLatestDesktopSamples.Array(), latestDesktopAudioFrames*2, 1.0f, desktopRMS, desktopMx);
if(bMicEnabled && latestMicBuffer)
CalculateVolumeLevels(latestMicBuffer, latestMicAudioFrames*2, curMicVol, micRMS, micMx);
/*convert RMS and Max of samples to dB*/
desktopRMS = toDB(desktopRMS);
micRMS = toDB(micRMS);
desktopMx = toDB(desktopMx);
micMx = toDB(micMx);
/* update max if sample max is greater or after 1 second */
float maxAlpha = 0.15f;
UINT peakMeterDelayFrames = 44100 * 3;
if(micMx > micMax)
{
micMax = micMx;
}
else
{
micMax = maxAlpha * micMx + (1.0f - maxAlpha) * micMax;
}
if(desktopMx > desktopMax)
{
desktopMax = desktopMx;
}
else
{
desktopMax = maxAlpha * desktopMx + (1.0f - maxAlpha) * desktopMax;
}
/*update delayed peak meter*/
if(micMax > micPeak || audioFramesSinceMicMaxUpdate > peakMeterDelayFrames)
{
micPeak = micMax;
audioFramesSinceMicMaxUpdate = 0;
}
else
{
audioFramesSinceMicMaxUpdate += desktopAudioFrames;
}
if(desktopMax > desktopPeak || audioFramesSinceDesktopMaxUpdate > peakMeterDelayFrames)
{
desktopPeak = desktopMax;
audioFramesSinceDesktopMaxUpdate = 0;
}
else
{
audioFramesSinceDesktopMaxUpdate += desktopAudioFrames;
}
/*low pass the level sampling*/
float rmsAlpha = 0.15f;
desktopMag = rmsAlpha * desktopRMS + desktopMag * (1.0f - rmsAlpha);
micMag = rmsAlpha * micRMS + micMag * (1.0f - rmsAlpha);
/*update the meter about every 50ms*/
audioFramesSinceMeterUpdate += desktopAudioFrames;
if(audioFramesSinceMeterUpdate >= 2205)
{
PostMessage(hwndMain, WM_COMMAND, MAKEWPARAM(ID_MICVOLUMEMETER, VOLN_METERED), 0);
audioFramesSinceMeterUpdate = 0;
}
//----------------------------------------------------------------------------
// mix mic and desktop sound, using SSE2 if available
// also, it's perfectly fine to just mix into the returned buffer
if(bMicEnabled)
MixAudio(desktopBuffer, micBuffer, totalFloats, bForceMicMono);
EncodeAudioSegment(desktopBuffer, totalFloats>>1, lastAudioTime);
}
//-----------------------------------------------
if(!bRecievedFirstAudioFrame && pendingAudioFrames.Num())
bRecievedFirstAudioFrame = true;
}
desktopMag = desktopMax = desktopPeak = VOL_MIN;
micMag = micMax = micPeak = VOL_MIN;
PostMessage(hwndMain, WM_COMMAND, MAKEWPARAM(ID_MICVOLUMEMETER, VOLN_METERED), 0);
for(UINT i=0; i<pendingAudioFrames.Num(); i++)
pendingAudioFrames[i].audioData.Clear();
AvRevertMmThreadCharacteristics(hTask);
}