int FMOD_Main()
{
FMOD::System *system;
FMOD::Sound *sound;
FMOD::Channel *channel;
FMOD::DSP *mydsp;
FMOD::ChannelGroup *mastergroup;
FMOD_RESULT result;
unsigned int version;
void *extradriverdata = 0;
Common_Init(&extradriverdata);
/*
Create a System object and initialize.
*/
result = FMOD::System_Create(&system);
ERRCHECK(result);
result = system->getVersion(&version);
ERRCHECK(result);
if (version < FMOD_VERSION)
{
Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
}
result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
ERRCHECK(result);
result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound);
ERRCHECK(result);
result = system->playSound(sound, 0, false, &channel);
ERRCHECK(result);
/*
Create the DSP effect.
*/
{
FMOD_DSP_DESCRIPTION dspdesc;
memset(&dspdesc, 0, sizeof(dspdesc));
strncpy(dspdesc.name, "My first DSP unit", sizeof(dspdesc.name));
dspdesc.version = 0x00010000;
dspdesc.numinputbuffers = 1;
dspdesc.numoutputbuffers = 1;
dspdesc.read = myDSPCallback;
dspdesc.userdata = (void *)0x12345678;
result = system->createDSP(&dspdesc, &mydsp);
ERRCHECK(result);
}
/*
Attach the DSP, inactive by default.
*/
result = mydsp->setBypass(true);
ERRCHECK(result);
result = system->getMasterChannelGroup(&mastergroup);
ERRCHECK(result);
result = mastergroup->addDSP(0, mydsp, 0);
ERRCHECK(result);
/*
Main loop.
*/
do
{
bool bypass;
Common_Update();
result = mydsp->getBypass(&bypass);
ERRCHECK(result);
if (Common_BtnPress(BTN_ACTION1))
{
bypass = !bypass;
result = mydsp->setBypass(bypass);
ERRCHECK(result);
}
result = system->update();
ERRCHECK(result);
Common_Draw("==================================================");
Common_Draw("Custom DSP Example.");
Common_Draw("Copyright (c) Firelight Technologies 2004-2014.");
Common_Draw("==================================================");
Common_Draw("");
Common_Draw("Press %s to toggle filter bypass", Common_BtnStr(BTN_ACTION1));
Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
Common_Draw("");
Common_Draw("Filter is %s", bypass ? "inactive" : "active");
Common_Sleep(50);
} while (!Common_BtnPress(BTN_QUIT));
/*
Shut down
*/
result = sound->release();
ERRCHECK(result);
result = mastergroup->removeDSP(mydsp);
ERRCHECK(result);
result = mydsp->release();
ERRCHECK(result);
result = system->close();
ERRCHECK(result);
result = system->release();
ERRCHECK(result);
Common_Close();
return 0;
}
int FMOD_Main()
{
FMOD::System *system = 0;
FMOD::Sound *sound = 0;
FMOD::Channel *channel = 0;
FMOD::ChannelGroup *mastergroup = 0;
FMOD::DSP *dsplowpass = 0;
FMOD::DSP *dsphighpass = 0;
FMOD::DSP *dspecho = 0;
FMOD::DSP *dspflange = 0;
FMOD_RESULT result;
unsigned int version;
void *extradriverdata = 0;
Common_Init(&extradriverdata);
/*
Create a System object and initialize
*/
result = FMOD::System_Create(&system);
ERRCHECK(result);
result = system->getVersion(&version);
ERRCHECK(result);
if (version < FMOD_VERSION)
{
Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
}
result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
ERRCHECK(result);
result = system->getMasterChannelGroup(&mastergroup);
ERRCHECK(result);
result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_DEFAULT, 0, &sound);
ERRCHECK(result);
result = system->playSound(sound, 0, false, &channel);
ERRCHECK(result);
/*
Create some effects to play with
*/
result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
ERRCHECK(result);
result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
ERRCHECK(result);
result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
ERRCHECK(result);
result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
ERRCHECK(result);
/*
Add them to the master channel group. Each time an effect is added (to position 0) it pushes the others down the list.
*/
result = mastergroup->addDSP(0, dsplowpass);
ERRCHECK(result);
result = mastergroup->addDSP(0, dsphighpass);
ERRCHECK(result);
result = mastergroup->addDSP(0, dspecho);
ERRCHECK(result);
result = mastergroup->addDSP(0, dspflange);
ERRCHECK(result);
/*
By default, bypass all effects. This means let the original signal go through without processing.
It will sound 'dry' until effects are enabled by the user.
*/
result = dsplowpass->setBypass(true);
ERRCHECK(result);
result = dsphighpass->setBypass(true);
ERRCHECK(result);
result = dspecho->setBypass(true);
ERRCHECK(result);
result = dspflange->setBypass(true);
ERRCHECK(result);
/*
Main loop
*/
do
{
Common_Update();
if (Common_BtnPress(BTN_MORE))
{
bool paused;
result = channel->getPaused(&paused);
ERRCHECK(result);
paused = !paused;
result = channel->setPaused(paused);
ERRCHECK(result);
}
if (Common_BtnPress(BTN_ACTION1))
{
bool bypass;
result = dsplowpass->getBypass(&bypass);
ERRCHECK(result);
bypass = !bypass;
result = dsplowpass->setBypass(bypass);
ERRCHECK(result);
}
if (Common_BtnPress(BTN_ACTION2))
{
bool bypass;
result = dsphighpass->getBypass(&bypass);
ERRCHECK(result);
bypass = !bypass;
result = dsphighpass->setBypass(bypass);
ERRCHECK(result);
}
if (Common_BtnPress(BTN_ACTION3))
{
bool bypass;
result = dspecho->getBypass(&bypass);
ERRCHECK(result);
bypass = !bypass;
result = dspecho->setBypass(bypass);
ERRCHECK(result);
}
if (Common_BtnPress(BTN_ACTION4))
{
bool bypass;
result = dspflange->getBypass(&bypass);
ERRCHECK(result);
bypass = !bypass;
result = dspflange->setBypass(bypass);
ERRCHECK(result);
}
result = system->update();
ERRCHECK(result);
{
bool paused = 0;
bool dsplowpass_bypass;
bool dsphighpass_bypass;
bool dspecho_bypass;
bool dspflange_bypass;
dsplowpass ->getBypass(&dsplowpass_bypass);
dsphighpass ->getBypass(&dsphighpass_bypass);
dspecho ->getBypass(&dspecho_bypass);
dspflange ->getBypass(&dspflange_bypass);
if (channel)
{
result = channel->getPaused(&paused);
if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
{
ERRCHECK(result);
}
}
Common_Draw("==================================================");
Common_Draw("Effects Example.");
Common_Draw("Copyright (c) Firelight Technologies 2004-2015.");
Common_Draw("==================================================");
Common_Draw("");
Common_Draw("Press %s to pause/unpause sound", Common_BtnStr(BTN_MORE));
Common_Draw("Press %s to toggle dsplowpass effect", Common_BtnStr(BTN_ACTION1));
Common_Draw("Press %s to toggle dsphighpass effect", Common_BtnStr(BTN_ACTION2));
Common_Draw("Press %s to toggle dspecho effect", Common_BtnStr(BTN_ACTION3));
Common_Draw("Press %s to toggle dspflange effect", Common_BtnStr(BTN_ACTION4));
Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
Common_Draw("");
Common_Draw("%s : lowpass[%c] highpass[%c] echo[%c] flange[%c]",
paused ? "Paused " : "Playing",
dsplowpass_bypass ? ' ' : 'x',
dsphighpass_bypass ? ' ' : 'x',
dspecho_bypass ? ' ' : 'x',
dspflange_bypass ? ' ' : 'x');
}
Common_Sleep(50);
} while (!Common_BtnPress(BTN_QUIT));
/*
Shut down
*/
result = mastergroup->removeDSP(dsplowpass);
ERRCHECK(result);
result = mastergroup->removeDSP(dsphighpass);
ERRCHECK(result);
result = mastergroup->removeDSP(dspecho);
ERRCHECK(result);
result = mastergroup->removeDSP(dspflange);
ERRCHECK(result);
result = dsplowpass->release();
ERRCHECK(result);
result = dsphighpass->release();
ERRCHECK(result);
result = dspecho->release();
ERRCHECK(result);
result = dspflange->release();
ERRCHECK(result);
result = sound->release();
ERRCHECK(result);
result = system->close();
ERRCHECK(result);
result = system->release();
ERRCHECK(result);
Common_Close();
return 0;
}
int main(int argc, char *argv[])
{
FMOD::System *system = 0;
FMOD::Sound *sound = 0;
FMOD::Channel *channel = 0;
FMOD::DSP *dsp = 0;
FMOD_RESULT result;
FMOD_CREATESOUNDEXINFO exinfo;
FMOD_SPEAKERMODE speakermode;
FMOD_CAPS caps;
int key, numdrivers;
unsigned int version;
unsigned int datalength = 0, soundlength;
char name[256];
unsigned int adjustedlatency;
/*
Create a System object and initialize.
*/
result = FMOD::System_Create(&system);
ERRCHECK(result);
result = system->getVersion(&version);
ERRCHECK(result);
if (version < FMOD_VERSION)
{
printf("Error! You are using an old version of FMOD %08x. This program requires %08x\n", version, FMOD_VERSION);
return 0;
}
/*
System initialization (recommended startup sequence)
*/
result = system->getNumDrivers(&numdrivers);
ERRCHECK(result);
if (numdrivers == 0)
{
result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
ERRCHECK(result);
}
else
{
result = system->getDriverCaps(0, &caps, 0, &speakermode);
ERRCHECK(result);
result = system->setSpeakerMode(speakermode); /* Set the user selected speaker mode. */
ERRCHECK(result);
if (caps & FMOD_CAPS_HARDWARE_EMULATED) /* The user has the 'Acceleration' slider set to off! This is really bad for latency!. */
{ /* You might want to warn the user about this. */
result = system->setDSPBufferSize(1024, 10);
ERRCHECK(result);
}
#ifdef LOWLATENCY
else
{
result = system->setDSPBufferSize(256, 4);
}
#endif
result = system->getDriverInfo(0, name, 256, 0);
ERRCHECK(result);
if (strstr(name, "SigmaTel")) /* Sigmatel sound devices crackle for some reason if the format is PCM 16bit. PCM floating point output seems to solve it. */
{
result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR);
ERRCHECK(result);
}
}
result = system->init(100, FMOD_INIT_NORMAL, 0);
if (result == FMOD_ERR_OUTPUT_CREATEBUFFER) /* Ok, the speaker mode selected isn't supported by this soundcard. Switch it back to stereo... */
{
result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
ERRCHECK(result);
result = system->init(100, FMOD_INIT_NORMAL, 0);/* ... and re-init. */
ERRCHECK(result);
}
/*
System initialization complete (recommended startup sequence)
*/
/*
Create user sound to record into. Set it to loop for playback.
*/
memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));
exinfo.cbsize = sizeof(FMOD_CREATESOUNDEXINFO);
exinfo.numchannels = 1;
exinfo.format = FMOD_SOUND_FORMAT_PCM16;
exinfo.defaultfrequency = RECORDRATE;
exinfo.length = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5; /* 5 second buffer, doesnt really matter how big this is, but not too small of course. */
result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
ERRCHECK(result);
printf("========================================================================\n");
printf("Record with realtime playback example.\n");
printf("Copyright (c) Firelight Technologies 2004-2014.\n");
printf("\n");
printf("Try #define LOWLATENCY to reduce latency for more modern machines!\n");
printf("========================================================================\n");
printf("\n");
printf("Press a key to start recording. Playback will start %d samples (%d ms) later.\n", LATENCY, LATENCY * 1000 / RECORDRATE);
printf("\n");
_getch();
printf("Press 'E' to toggle an effect on/off.\n");
printf("Press 'Esc' to quit\n");
printf("\n");
result = system->recordStart(0, sound, true);
ERRCHECK(result);
result = sound->getLength(&soundlength, FMOD_TIMEUNIT_PCM);
ERRCHECK(result);
/*
Create a DSP effect to play with.
*/
result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dsp);
ERRCHECK(result);
result = dsp->setParameter(FMOD_DSP_FLANGE_RATE, 4.0f);
ERRCHECK(result);
result = dsp->setBypass(true);
ERRCHECK(result);
adjustedlatency = LATENCY; /* This might change depending on record block size. */
/*
Main loop.
*/
do
{
static unsigned int lastrecordpos = 0, samplesrecorded = 0;
unsigned int recordpos = 0, recorddelta;
key = 0;
if (_kbhit())
{
key = _getch();
}
if (key == 'e' || key == 'E')
{
bool bypass;
dsp->getBypass(&bypass);
dsp->setBypass(!bypass);
if (bypass)
{
FMOD_REVERB_PROPERTIES prop = FMOD_PRESET_CONCERTHALL;
system->setReverbProperties(&prop);
}
else
{
FMOD_REVERB_PROPERTIES prop = FMOD_PRESET_OFF;
system->setReverbProperties(&prop);
}
printf("\n\n *** TURN DSP EFFECT %s ** \n\n", bypass ? "ON" : "OFF");
}
system->getRecordPosition(0, &recordpos);
ERRCHECK(result);
recorddelta = recordpos >= lastrecordpos ? recordpos - lastrecordpos : recordpos + soundlength - lastrecordpos;
samplesrecorded += recorddelta;
if (samplesrecorded >= adjustedlatency && !channel)
{
result = system->playSound(FMOD_CHANNEL_FREE, sound, 0, &channel);
ERRCHECK(result);
result = channel->addDSP(dsp, 0);
ERRCHECK(result);
}
if (channel && recorddelta)
{
unsigned int playrecorddelta;
unsigned int playpos = 0;
int adjusting = 0;
float smootheddelta;
float dampratio = 0.97f;
static unsigned int minrecorddelta = (unsigned int)-1;
/*
If the record driver steps the position of the record cursor in larger increments than the user defined latency value, then we should
increase our latency value to match.
*/
if (recorddelta < minrecorddelta)
{
minrecorddelta = recorddelta;
if (adjustedlatency < recorddelta)
{
adjustedlatency = recorddelta;
}
}
channel->getPosition(&playpos, FMOD_TIMEUNIT_PCM);
playrecorddelta = recordpos >= playpos ? recordpos - playpos : recordpos + soundlength - playpos;
/*
Smooth total
*/
{
static float total = 0;
total = total * dampratio;
total += playrecorddelta;
smootheddelta = total * (1.0f - dampratio);
}
if (smootheddelta < adjustedlatency - DRIFTTHRESHOLD || smootheddelta > soundlength / 2) /* if play cursor is catching up to record (or passed it), slow playback down */
{
channel->setFrequency(RECORDRATE - (RECORDRATE / 50)); /* Decrease speed by 2% */
adjusting = 1;
}
else if (smootheddelta > adjustedlatency + DRIFTTHRESHOLD) /* if play cursor is falling too far behind record, speed playback up */
{
channel->setFrequency(RECORDRATE + (RECORDRATE / 50)); /* Increase speed by 2% */
adjusting = 2;
}
else
{
channel->setFrequency(RECORDRATE); /* Otherwise set to normal rate */
adjusting = 0;
}
printf("REC %5d (REC delta %5d) : PLAY %5d, PLAY/REC diff %5d %s\r", recordpos, recorddelta, playpos, (int)smootheddelta, adjusting == 1 ? "DECREASE SPEED" : adjusting == 2 ? "INCREASE SPEED" : " ");
}
lastrecordpos = recordpos;
system->update();
Sleep(10);
} while (key != 27);
printf("\n");
/*
Shut down
*/
result = sound->release();
ERRCHECK(result);
result = system->release();
ERRCHECK(result);
return 0;
}