void CAAudioFileConverter::PrintFormats(const CAAudioChannelLayout *origSrcFileLayout)
{
const CAAudioChannelLayout &srcFileLayout = mSrcFile.GetFileChannelLayout();
const CAAudioChannelLayout &destFileLayout = mDestFile.GetFileChannelLayout();
// see where we've gotten
if (mParams.flags & kOpt_Verbose) {
printf("Formats:\n");
mSrcFile.GetFileDataFormat().PrintFormat(stdout, " ", "Input file ");
if (srcFileLayout.IsValid()) {
printf(" %s",
CAChannelLayouts::ConstantToString(srcFileLayout.Tag()));
if (srcFileLayout.IsValid() && origSrcFileLayout != NULL &&
srcFileLayout != *origSrcFileLayout)
printf(" -- overriding layout %s in file",
CAChannelLayouts::ConstantToString(origSrcFileLayout->Tag()));
printf("\n");
}
mDestFile.GetFileDataFormat().PrintFormat(stdout, " ", "Output file ");
if (destFileLayout.IsValid())
printf(" %s\n",
CAChannelLayouts::ConstantToString(destFileLayout.Tag()));
if (mSrcFile.HasConverter()) {
mSrcFile.GetClientDataFormat().PrintFormat(stdout, " ", "Input client ");
CAShow(mSrcFile.GetConverter());
}
if (mDestFile.HasConverter()) {
mDestFile.GetClientDataFormat().PrintFormat(stdout, " ", "Output client");
CAShow(mDestFile.GetConverter());
}
}
}
static void ca_start_w(CAData *d){
OSStatus err= noErr;
if (d->write_started==FALSE){
AudioStreamBasicDescription inASBD;
int i;
i = ca_open_w(d);
if (i<0)
return;
inASBD = d->caOutASBD;
inASBD.mSampleRate = d->rate;
inASBD.mFormatID = kAudioFormatLinearPCM;
inASBD.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
if (htonl(0x1234) == 0x1234)
inASBD.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
inASBD.mChannelsPerFrame = d->stereo ? 2 : 1;
inASBD.mBytesPerPacket = (d->bits / 8) * inASBD.mChannelsPerFrame;
inASBD.mBytesPerFrame = (d->bits / 8) * inASBD.mChannelsPerFrame;
inASBD.mFramesPerPacket = 1;
inASBD.mBitsPerChannel = d->bits;
err = AudioConverterNew( &inASBD, &d->caOutASBD, &d->caOutConverter);
if(err != noErr)
ms_error("AudioConverterNew %x %d", err, inASBD.mBytesPerFrame);
else
CAShow(d->caOutConverter);
if (inASBD.mChannelsPerFrame == 1 && d->caOutASBD.mChannelsPerFrame == 2)
{
if (d->caOutConverter)
{
// This should be as large as the number of output channels,
// each element specifies which input channel's data is routed to that output channel
SInt32 channelMap[] = { 0, 0 };
err = AudioConverterSetProperty(d->caOutConverter, kAudioConverterChannelMap, 2*sizeof(SInt32), channelMap);
}
}
memset((char*)&d->caOutRenderCallback, 0, sizeof(AURenderCallbackStruct));
d->caOutRenderCallback.inputProc = writeRenderProc;
d->caOutRenderCallback.inputProcRefCon = d;
err = AudioUnitSetProperty (d->caOutAudioUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Input,
0,
&d->caOutRenderCallback,
sizeof(AURenderCallbackStruct));
if(err != noErr)
ms_error("AudioUnitSetProperty %x", err);
if(err == noErr) {
if(AudioOutputUnitStart(d->caOutAudioUnit) == noErr)
d->write_started=TRUE;
}
}
}
bool FIOSAudioDevice::Exec(UWorld* InWorld, const TCHAR* Cmd, FOutputDevice& Ar)
{
if (FParse::Command(&Cmd, TEXT("DumpAUGraph")) && AudioUnitGraph)
{
CAShow(AudioUnitGraph);
return true;
}
return FAudioDevice::Exec(InWorld, Cmd, Ar);
}
static void ca_start_r(CAData *d){
OSStatus err= noErr;
if (d->read_started==FALSE){
AudioStreamBasicDescription outASBD;
int i;
i = ca_open_r(d);
if (i<0)
return;
outASBD = d->caInASBD;
outASBD.mSampleRate = d->rate;
outASBD.mFormatID = kAudioFormatLinearPCM;
outASBD.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
if (htonl(0x1234) == 0x1234)
outASBD.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
outASBD.mChannelsPerFrame = d->stereo ? 2 : 1;
outASBD.mBytesPerPacket = (d->bits / 8) * outASBD.mChannelsPerFrame;
outASBD.mBytesPerFrame = (d->bits / 8) * outASBD.mChannelsPerFrame;
outASBD.mFramesPerPacket = 1;
outASBD.mBitsPerChannel = d->bits;
err = AudioConverterNew( &d->caInASBD, &outASBD, &d->caInConverter);
if(err != noErr)
ms_error("AudioConverterNew %x %d", err, outASBD.mBytesPerFrame);
else
CAShow(d->caInConverter);
d->caInRenderCallback.inputProc = readRenderProc;
d->caInRenderCallback.inputProcRefCon = d;
err = AudioUnitSetProperty(d->caInAudioUnit,
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&d->caInRenderCallback,
sizeof(AURenderCallbackStruct));
if(AudioOutputUnitStart(d->caInAudioUnit) == noErr)
d->read_started = TRUE;
}
}
int main(int argc, char *argv[])
{
AUGraph audioGraph;
NewAUGraph(&audioGraph);
AudioComponentDescription cd;
AUNode outputNode;
AudioUnit outputUnit;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
AUGraphAddNode(audioGraph, &cd, &outputNode);
AUGraphNodeInfo(audioGraph, outputNode, &cd, &outputUnit);
AUNode mixerNode;
AudioUnit mixerUnit;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
cd.componentType = kAudioUnitType_Mixer;
cd.componentSubType = kAudioUnitSubType_StereoMixer;
AUGraphAddNode(audioGraph, &cd, &mixerNode);
AUGraphNodeInfo(audioGraph, mixerNode, &cd, &mixerUnit);
AUGraphConnectNodeInput(audioGraph, mixerNode, 0, outputNode, 0);
AUGraphOpen(audioGraph);
AUGraphInitialize(audioGraph);
AUGraphStart(audioGraph);
AUNode synthNode;
AudioUnit synthUnit;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
cd.componentType = kAudioUnitType_MusicDevice;
cd.componentSubType = kAudioUnitSubType_DLSSynth;
AUGraphAddNode(audioGraph, &cd, &synthNode);
AUGraphNodeInfo(audioGraph, synthNode, &cd, &synthUnit);
AUGraphConnectNodeInput(audioGraph, synthNode, 0, mixerNode, 0);
AUGraphUpdate(audioGraph, NULL);
CAShow(audioGraph);
MusicDeviceMIDIEvent(synthUnit, 0x90, 60, 127, 0);
sleep(1);
MusicDeviceMIDIEvent(synthUnit, 0x90, 62, 127, 0);
sleep(1);
MusicDeviceMIDIEvent(synthUnit, 0x90, 64, 127, 0);
sleep(1);
sleep(5);
return(0);
}
void CCoreAudioGraph::ShowGraph()
{
CAShow(m_audioGraph);
}
int main (int argc, const char * argv[]) {
AUGraph graph = 0;
AudioUnit synthUnit;
OSStatus result;
char* bankPath = 0;
UInt8 midiChannelInUse = 0; //we're using midi channel 1...
// this is the only option to main that we have...
// just the full path of the sample bank...
// On OS X there are known places were sample banks can be stored
// Library/Audio/Sounds/Banks - so you could scan this directory and give the user options
// about which sample bank to use...
if (argc > 1)
bankPath = const_cast<char*>(argv[1]);
require_noerr (result = CreateAUGraph (graph, synthUnit), home);
// if the user supplies a sound bank, we'll set that before we initialize and start playing
if (bankPath)
{
FSSpec soundBankSpec;
require_noerr (result = PathToFSSpec (bankPath, soundBankSpec), home);
printf ("Setting Sound Bank:%s\n", bankPath);
require_noerr (result = AudioUnitSetProperty (synthUnit,
kMusicDeviceProperty_SoundBankFSSpec,
kAudioUnitScope_Global, 0,
&soundBankSpec, sizeof(soundBankSpec)), home);
}
// ok we're set up to go - initialize and start the graph
require_noerr (result = AUGraphInitialize (graph), home);
//set our bank
require_noerr (result = MusicDeviceMIDIEvent(synthUnit,
kMidiMessage_ControlChange << 4 | midiChannelInUse,
kMidiMessage_BankMSBControl, 0,
0/*sample offset*/), home);
require_noerr (result = MusicDeviceMIDIEvent(synthUnit,
kMidiMessage_ProgramChange << 4 | midiChannelInUse,
0/*prog change num*/, 0,
0/*sample offset*/), home);
CAShow (graph); // prints out the graph so we can see what it looks like...
require_noerr (result = AUGraphStart (graph), home);
// we're going to play an octave of MIDI notes: one a second
for (int i = 0; i < 13; i++) {
UInt32 noteNum = i + 60;
UInt32 onVelocity = 127;
UInt32 noteOnCommand = kMidiMessage_NoteOn << 4 | midiChannelInUse;
printf ("Playing Note: Status: 0x%lX, Note: %ld, Vel: %ld\n", noteOnCommand, noteNum, onVelocity);
require_noerr (result = MusicDeviceMIDIEvent(synthUnit, noteOnCommand, noteNum, onVelocity, 0), home);
// sleep for a second
usleep (1 * 1000 * 1000);
require_noerr (result = MusicDeviceMIDIEvent(synthUnit, noteOnCommand, noteNum, 0, 0), home);
}
// ok we're done now
home:
if (graph) {
AUGraphStop (graph); // stop playback - AUGraphDispose will do that for us but just showing you what to do
DisposeAUGraph (graph);
}
return result;
}
void start(int midiChannel, char const*const bankPath)
{
if (auGraph != 0)
return; // don't multiply init
midiChannelInUse = midiChannel;
OSStatus result;
//create the nodes of the graph
AUNode synthNode;
AudioComponentDescription cd;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
require_noerr (result = NewAUGraph (&auGraph), home);
cd.componentType = kAudioUnitType_MusicDevice;
cd.componentSubType = kAudioUnitSubType_DLSSynth;
require_noerr (result = AUGraphAddNode (auGraph, &cd, &synthNode), home);
cd.componentType = kAudioUnitType_Effect;
cd.componentSubType = kAudioUnitSubType_PeakLimiter;
require_noerr (result = AUGraphAddNode (auGraph, &cd, &limiterNode), home);
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
require_noerr (result = AUGraphAddNode (auGraph, &cd, &outNode), home);
require_noerr (result = AUGraphOpen (auGraph), home);
require_noerr (result = AUGraphConnectNodeInput(auGraph, synthNode, 0, limiterNode, 0), home);
require_noerr (result = AUGraphConnectNodeInput(auGraph, limiterNode, 0, outNode, 0), home);
// ok we're good to go - get the Synth Unit...
require_noerr (result = AUGraphNodeInfo(auGraph, synthNode, 0, &synthUnit), home);
// if the user supplies a sound bank, we'll set that before we initialize and start playing
if (bankPath)
{
// note: bankpath is a soundfont
CFURLRef url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8 *)bankPath, strlen(bankPath), false);
if (url) {
require_noerr (result = AudioUnitSetProperty(synthUnit,
kMusicDeviceProperty_SoundBankURL, kAudioUnitScope_Global,
0,
&url, sizeof(url)
), home);
CFRelease(url);
}
}
// ok we're set up to go - initialize and start the graph
require_noerr (result = AUGraphInitialize (auGraph), home);
//set our bank
require_noerr (result = MusicDeviceMIDIEvent(synthUnit,
kMidiMessage_ControlChange << 4 | midiChannelInUse,
kMidiMessage_BankMSBControl, 0,
0/*sample offset*/), home);
require_noerr (result = MusicDeviceMIDIEvent(synthUnit,
kMidiMessage_ProgramChange << 4 | midiChannelInUse,
0/*prog change num*/, 0,
0/*sample offset*/), home);
CAShow(auGraph); // prints out the graph so we can see what it looks like...
require_noerr (result = AUGraphStart(auGraph), home);
return;
home:
shutdown();
}
// _______________________________________________________________________________________
//
void CAAudioFile::SetClientFormat(const CAStreamBasicDescription &dataFormat, const CAAudioChannelLayout *layout)
{
LOG_FUNCTION("CAAudioFile::SetClientFormat", "%p", this);
XThrowIf(!dataFormat.IsPCM(), kExtAudioFileError_NonPCMClientFormat, "non-PCM client format on audio file");
bool dataFormatChanging = (mClientDataFormat.mFormatID == 0 || mClientDataFormat != dataFormat);
if (dataFormatChanging) {
CloseConverter();
if (mWriteBufferList) {
delete mWriteBufferList;
mWriteBufferList = NULL;
}
mClientDataFormat = dataFormat;
}
if (layout && layout->IsValid()) {
XThrowIf(layout->NumberChannels() != mClientDataFormat.NumberChannels(), kExtAudioFileError_InvalidChannelMap, "inappropriate channel map");
mClientChannelLayout = *layout;
}
bool differentLayouts;
if (mClientChannelLayout.IsValid()) {
if (mFileChannelLayout.IsValid()) {
differentLayouts = mClientChannelLayout.Tag() != mFileChannelLayout.Tag();
#if VERBOSE_CHANNELMAP
printf("two valid layouts, %s\n", differentLayouts ? "different" : "same");
#endif
} else {
differentLayouts = false;
#if VERBOSE_CHANNELMAP
printf("valid client layout, unknown file layout\n");
#endif
}
} else {
differentLayouts = false;
#if VERBOSE_CHANNELMAP
if (mFileChannelLayout.IsValid())
printf("valid file layout, unknown client layout\n");
else
printf("two invalid layouts\n");
#endif
}
if (mClientDataFormat != mFileDataFormat || differentLayouts) {
// We need an AudioConverter.
if (mMode == kReading) {
// file -> client (decode)
//mFileDataFormat.PrintFormat( stdout, "", "File: ");
//mClientDataFormat.PrintFormat(stdout, "", "Client: ");
if (mConverter == NULL)
XThrowIfError(AudioConverterNew(&mFileDataFormat, &mClientDataFormat, &mConverter),
"create audio converter");
#if VERBOSE_CONVERTER
printf("CAAudioFile %p -- created converter\n", this);
CAShow(mConverter);
#endif
// set the magic cookie, if any (for decode)
if (mMagicCookie)
SetConverterProperty(kAudioConverterDecompressionMagicCookie, mMagicCookieSize, mMagicCookie, mFileDataFormat.IsPCM());
// we get cookies from some AIFF's but the converter barfs on them,
// so we set canFail to true for PCM
SetConverterChannelLayout(false, mFileChannelLayout);
SetConverterChannelLayout(true, mClientChannelLayout);
// propagate leading/trailing frame counts
if (mFileDataFormat.mBitsPerChannel == 0) {
UInt32 propertySize;
OSStatus err;
AudioFilePacketTableInfo pti;
propertySize = sizeof(pti);
err = AudioFileGetProperty(mAudioFile, kAudioFilePropertyPacketTableInfo, &propertySize, &pti);
if (err == noErr && (pti.mPrimingFrames > 0 || pti.mRemainderFrames > 0)) {
AudioConverterPrimeInfo primeInfo;
primeInfo.leadingFrames = pti.mPrimingFrames;
primeInfo.trailingFrames = pti.mRemainderFrames;
/* ignore any error. better to play it at all than not. */
/*err = */AudioConverterSetProperty(mConverter, kAudioConverterPrimeInfo, sizeof(primeInfo), &primeInfo);
//XThrowIfError(err, "couldn't set prime info on converter");
}
}
} else if (mMode == kPreparingToCreate || mMode == kPreparingToWrite) {
// client -> file (encode)
if (mConverter == NULL)
XThrowIfError(AudioConverterNew(&mClientDataFormat, &mFileDataFormat, &mConverter), "create audio converter");
mWriteBufferList = CABufferList::New("", mClientDataFormat);
SetConverterChannelLayout(false, mClientChannelLayout);
SetConverterChannelLayout(true, mFileChannelLayout);
if (mMode == kPreparingToWrite)
FileFormatChanged();
} else
XThrowIfError(kExtAudioFileError_InvalidOperationOrder, "audio file format not yet known");
}
UpdateClientMaxPacketSize();
}
int main (int argc, const char * argv[])
{
if (argc == 1) {
fprintf (stderr, "%s\n", usageStr);
exit(0);
}
char* filePath = 0;
bool shouldPlay = false;
bool shouldSetBank = false;
bool shouldUseMIDIEndpoint = false;
bool shouldPrint = true;
bool waitAtEnd = false;
bool diskStream = false;
OSType dataFormat = 0;
Float64 srate = 0;
const char* outputFilePath = 0;
MusicSequenceLoadFlags loadFlags = 0;
char* bankPath = 0;
Float32 startTime = 0;
UInt32 numFrames = 512;
std::set<int> trackSet;
for (int i = 1; i < argc; ++i)
{
if (!strcmp ("-p", argv[i]))
{
shouldPlay = true;
}
else if (!strcmp ("-w", argv[i]))
{
waitAtEnd = true;
}
else if (!strcmp ("-d", argv[i]))
{
diskStream = true;
}
else if (!strcmp ("-b", argv[i]))
{
shouldSetBank = true;
if (++i == argc) goto malformedInput;
bankPath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-n", argv[i]))
{
shouldPrint = false;
}
else if ((filePath == 0) && (argv[i][0] == '/' || argv[i][0] == '~'))
{
filePath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-s", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%f", &startTime);
}
else if (!strcmp ("-t", argv[i]))
{
int index;
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%d", &index);
trackSet.insert(--index);
}
else if (!strcmp("-e", argv[i]))
{
shouldUseMIDIEndpoint = true;
}
else if (!strcmp("-c", argv[i]))
{
loadFlags = kMusicSequenceLoadSMF_ChannelsToTracks;
}
else if (!strcmp ("-i", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%lu", (unsigned long*)(&numFrames));
}
else if (!strcmp ("-f", argv[i]))
{
if (i + 3 >= argc) goto malformedInput;
outputFilePath = argv[++i];
StrToOSType (argv[++i], dataFormat);
sscanf (argv[++i], "%lf", &srate);
}
else
{
malformedInput:
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
}
if (filePath == 0) {
fprintf (stderr, "You have to specify a MIDI file to print or play\n");
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
if (shouldUseMIDIEndpoint && outputFilePath) {
printf ("can't write a file when you try to play out to a MIDI Endpoint\n");
exit (1);
}
MusicSequence sequence;
OSStatus result;
FailIf ((result = LoadSMF (filePath, sequence, loadFlags)), fail, "LoadSMF");
if (shouldPrint)
CAShow (sequence);
if (shouldPlay)
{
AUGraph graph = 0;
AudioUnit theSynth = 0;
FailIf ((result = MusicSequenceGetAUGraph (sequence, &graph)), fail, "MusicSequenceGetAUGraph");
FailIf ((result = AUGraphOpen (graph)), fail, "AUGraphOpen");
FailIf ((result = GetSynthFromGraph (graph, theSynth)), fail, "GetSynthFromGraph");
FailIf ((result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_CPULoad,
kAudioUnitScope_Global, 0,
&maxCPULoad, sizeof(maxCPULoad))), fail, "AudioUnitSetProperty: kAudioUnitProperty_CPULoad");
if (shouldUseMIDIEndpoint)
{
MIDIClientRef theMidiClient;
MIDIClientCreate(CFSTR("Play Sequence"), NULL, NULL, &theMidiClient);
ItemCount destCount = MIDIGetNumberOfDestinations();
if (destCount == 0) {
fprintf (stderr, "No MIDI Endpoints to play to.\n");
exit(1);
}
FailIf ((result = MusicSequenceSetMIDIEndpoint (sequence, MIDIGetDestination(0))), fail, "MusicSequenceSetMIDIEndpoint");
}
else
{
if (shouldSetBank) {
CFURLRef soundBankURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8*)bankPath, strlen(bankPath), false);
printf ("Setting Sound Bank:%s\n", bankPath);
result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_SoundBankURL,
kAudioUnitScope_Global, 0,
&soundBankURL, sizeof(soundBankURL));
if (soundBankURL) CFRelease(soundBankURL);
FailIf (result, fail, "AudioUnitSetProperty: kMusicDeviceProperty_SoundBankURL");
}
if (diskStream) {
UInt32 value = diskStream;
FailIf ((result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_StreamFromDisk,
kAudioUnitScope_Global, 0,
&value, sizeof(value))), fail, "AudioUnitSetProperty: kMusicDeviceProperty_StreamFromDisk");
}
if (outputFilePath) {
// need to tell synth that is going to render a file.
UInt32 value = 1;
FailIf ((result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_OfflineRender,
kAudioUnitScope_Global, 0,
&value, sizeof(value))), fail, "AudioUnitSetProperty: kAudioUnitProperty_OfflineRender");
}
FailIf ((result = SetUpGraph (graph, numFrames, srate, (outputFilePath != NULL))), fail, "SetUpGraph");
if (shouldPrint) {
printf ("Sample Rate: %.1f \n", srate);
printf ("Disk Streaming is enabled: %c\n", (diskStream ? 'T' : 'F'));
}
FailIf ((result = AUGraphInitialize (graph)), fail, "AUGraphInitialize");
if (shouldPrint)
CAShow (graph);
}
MusicPlayer player;
FailIf ((result = NewMusicPlayer (&player)), fail, "NewMusicPlayer");
FailIf ((result = MusicPlayerSetSequence (player, sequence)), fail, "MusicPlayerSetSequence");
// figure out sequence length
UInt32 ntracks;
FailIf ((MusicSequenceGetTrackCount (sequence, &ntracks)), fail, "MusicSequenceGetTrackCount");
MusicTimeStamp sequenceLength = 0;
bool shouldPrintTracks = shouldPrint && !trackSet.empty();
if (shouldPrintTracks)
printf ("Only playing specified tracks:\n\t");
for (UInt32 i = 0; i < ntracks; ++i) {
MusicTrack track;
MusicTimeStamp trackLength;
UInt32 propsize = sizeof(MusicTimeStamp);
FailIf ((result = MusicSequenceGetIndTrack(sequence, i, &track)), fail, "MusicSequenceGetIndTrack");
FailIf ((result = MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
&trackLength, &propsize)), fail, "MusicTrackGetProperty: kSequenceTrackProperty_TrackLength");
if (trackLength > sequenceLength)
sequenceLength = trackLength;
if (!trackSet.empty() && (trackSet.find(i) == trackSet.end()))
{
Boolean mute = true;
FailIf ((result = MusicTrackSetProperty(track, kSequenceTrackProperty_MuteStatus, &mute, sizeof(mute))), fail, "MusicTrackSetProperty: kSequenceTrackProperty_MuteStatus");
}
else if (shouldPrintTracks) {
printf ("%d, ", int(i+1));
}
}
if (shouldPrintTracks)
printf ("\n");
// now I'm going to add 8 beats on the end for the reverb/long releases to tail off...
sequenceLength += 8;
FailIf ((result = MusicPlayerSetTime (player, startTime)), fail, "MusicPlayerSetTime");
FailIf ((result = MusicPlayerPreroll (player)), fail, "MusicPlayerPreroll");
if (shouldPrint) {
printf ("Ready to play: %s, %.2f beats long\n\t<Enter> to continue: ", filePath, sequenceLength);
getc(stdin);
}
startRunningTime = CAHostTimeBase::GetTheCurrentTime();
/* if (waitAtEnd && graph)
AUGraphStart(graph);
*/
FailIf ((result = MusicPlayerStart (player)), fail, "MusicPlayerStart");
if (outputFilePath)
WriteOutputFile (outputFilePath, dataFormat, srate, sequenceLength, shouldPrint, graph, numFrames, player);
else
PlayLoop (player, graph, sequenceLength, shouldPrint, waitAtEnd);
FailIf ((result = MusicPlayerStop (player)), fail, "MusicPlayerStop");
if (shouldPrint) printf ("finished playing\n");
/* if (waitAtEnd) {
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 10, false);
if (graph)
AUGraphStop(graph);
if (shouldPrint) printf ("disposing\n");
}
*/
// this shows you how you should dispose of everything
FailIf ((result = DisposeMusicPlayer (player)), fail, "DisposeMusicPlayer");
FailIf ((result = DisposeMusicSequence(sequence)), fail, "DisposeMusicSequence");
// don't own the graph so don't dispose it (the seq owns it as we never set it ourselves, we just got it....)
}
else {
FailIf ((result = DisposeMusicSequence(sequence)), fail, "DisposeMusicSequence");
}
while (waitAtEnd)
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
return 0;
fail:
if (shouldPrint) printf ("Error = %ld\n", (long)result);
return result;
}
int main (int argc, const char * argv[])
{
if (argc == 1) {
fprintf (stderr, "%s\n", usageStr);
exit(0);
}
char* filePath = 0;
bool shouldPlay = false;
bool shouldSetBank = false;
bool shouldUseMIDIEndpoint = false;
bool shouldPrint = true;
bool waitAtEnd = false;
bool diskStream = false;
OSType dataFormat = 0;
Float64 srate = 0;
const char* outputFilePath = 0;
MusicSequenceLoadFlags loadFlags = 0;
char* bankPath = 0;
Float32 startTime = 0;
UInt32 numFrames = 512;
for (int i = 1; i < argc; ++i)
{
if (!strcmp ("-p", argv[i]))
{
shouldPlay = true;
}
else if (!strcmp ("-w", argv[i]))
{
waitAtEnd = true;
}
else if (!strcmp ("-d", argv[i]))
{
diskStream = true;
}
else if (!strcmp ("-b", argv[i]))
{
shouldSetBank = true;
if (++i == argc) goto malformedInput;
bankPath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-n", argv[i]))
{
shouldPrint = false;
}
else if ((filePath == 0) && (argv[i][0] == '/' || argv[i][0] == '~'))
{
filePath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-t", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%f", &startTime);
}
else if (!strcmp("-e", argv[i]))
{
shouldUseMIDIEndpoint = true;
}
else if (!strcmp("-c", argv[i]))
{
loadFlags = kMusicSequenceLoadSMF_ChannelsToTracks;
}
else if (!strcmp ("-i", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%ld", &numFrames);
}
else if (!strcmp ("-f", argv[i]))
{
if (i + 3 >= argc) goto malformedInput;
outputFilePath = argv[++i];
str2OSType (argv[++i], dataFormat);
sscanf (argv[++i], "%lf", &srate);
}
else
{
malformedInput:
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
}
if (filePath == 0) {
fprintf (stderr, "You have to specify a MIDI file to print or play\n");
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
if (shouldUseMIDIEndpoint && outputFilePath) {
printf ("can't write a file when you try to play out to a MIDI Endpoint\n");
exit (1);
}
MusicSequence sequence;
OSStatus result;
require_noerr (result = LoadSMF (filePath, sequence, loadFlags), fail);
if (shouldPrint)
CAShow (sequence);
if (shouldPlay)
{
AUGraph graph = 0;
AudioUnit theSynth = 0;
require_noerr (result = MusicSequenceGetAUGraph (sequence, &graph), fail);
require_noerr (result = AUGraphOpen (graph), fail);
require_noerr (result = GetSynthFromGraph (graph, theSynth), fail);
require_noerr (result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_CPULoad,
kAudioUnitScope_Global, 0,
&maxCPULoad, sizeof(maxCPULoad)), fail);
if (shouldUseMIDIEndpoint)
{
MIDIClientRef theMidiClient;
MIDIClientCreate(CFSTR("Play Sequence"), NULL, NULL, &theMidiClient);
ItemCount destCount = MIDIGetNumberOfDestinations();
if (destCount == 0) {
fprintf (stderr, "No MIDI Endpoints to play to.\n");
exit(1);
}
require_noerr (result = MusicSequenceSetMIDIEndpoint (sequence, MIDIGetDestination(0)), fail);
}
else
{
if (shouldSetBank) {
FSRef soundBankRef;
require_noerr (result = FSPathMakeRef ((const UInt8*)bankPath, &soundBankRef, 0), fail);
printf ("Setting Sound Bank:%s\n", bankPath);
require_noerr (result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_SoundBankFSRef,
kAudioUnitScope_Global, 0,
&soundBankRef, sizeof(soundBankRef)), fail);
}
if (diskStream) {
UInt32 value = diskStream;
require_noerr (result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_StreamFromDisk,
kAudioUnitScope_Global, 0,
&value, sizeof(value)), fail);
}
if (outputFilePath) {
// need to tell synth that is going to render a file.
UInt32 value = 1;
require_noerr (result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_OfflineRender,
kAudioUnitScope_Global, 0,
&value, sizeof(value)), fail);
}
require_noerr (result = SetUpGraph (graph, numFrames, srate, (outputFilePath != NULL)), fail);
if (shouldPrint) {
printf ("Sample Rate: %.1f \n", srate);
printf ("Disk Streaming is enabled: %c\n", (diskStream ? 'T' : 'F'));
}
require_noerr (result = AUGraphInitialize (graph), fail);
if (shouldPrint)
CAShow (graph);
}
MusicPlayer player;
require_noerr (result = NewMusicPlayer (&player), fail);
require_noerr (result = MusicPlayerSetSequence (player, sequence), fail);
// figure out sequence length
UInt32 ntracks;
require_noerr(MusicSequenceGetTrackCount (sequence, &ntracks), fail);
MusicTimeStamp sequenceLength = 0;
for (UInt32 i = 0; i < ntracks; ++i) {
MusicTrack track;
MusicTimeStamp trackLength;
UInt32 propsize = sizeof(MusicTimeStamp);
require_noerr (result = MusicSequenceGetIndTrack(sequence, i, &track), fail);
require_noerr (result = MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
&trackLength, &propsize), fail);
if (trackLength > sequenceLength)
sequenceLength = trackLength;
}
// now I'm going to add 8 beats on the end for the reverb/long releases to tail off...
sequenceLength += 8;
require_noerr (result = MusicPlayerSetTime (player, startTime), fail);
require_noerr (result = MusicPlayerPreroll (player), fail);
if (shouldPrint) {
printf ("Ready to play: %s, %.2f beats long\n\t<Enter> to continue: ", filePath, sequenceLength);
getc(stdin);
}
startRunningTime = AudioGetCurrentHostTime ();
require_noerr (result = MusicPlayerStart (player), fail);
if (outputFilePath)
WriteOutputFile (outputFilePath, dataFormat, srate, sequenceLength, shouldPrint, graph, numFrames, player);
else
PlayLoop (player, graph, sequenceLength, shouldPrint, waitAtEnd);
require_noerr (result = MusicPlayerStop (player), fail);
if (shouldPrint) printf ("finished playing\n");
// this shows you how you should dispose of everything
require_noerr (result = DisposeMusicPlayer (player), fail);
require_noerr (result = DisposeMusicSequence(sequence), fail);
// don't own the graph so don't dispose it (the seq owns it as we never set it ourselves, we just got it....)
}
else {
require_noerr (result = DisposeMusicSequence(sequence), fail);
}
while (waitAtEnd)
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
return 0;
fail:
if (shouldPrint) printf ("Error = %ld\n", result);
return result;
}
void CreateMyAUGraph(MyAUGraphPlayer *player)
{
// create a new AUGraph
CheckError(NewAUGraph(&player->graph),
"NewAUGraph failed");
// generate description that will match our output device (speakers)
AudioComponentDescription outputcd = {0};
outputcd.componentType = kAudioUnitType_Output;
outputcd.componentSubType = kAudioUnitSubType_DefaultOutput;
outputcd.componentManufacturer = kAudioUnitManufacturer_Apple;
// adds a node with above description to the graph
AUNode outputNode;
CheckError(AUGraphAddNode(player->graph, &outputcd, &outputNode),
"AUGraphAddNode[kAudioUnitSubType_DefaultOutput] failed");
// generate description that will match a generator AU of type: speech synthesizer
AudioComponentDescription speechcd = {0};
speechcd.componentType = kAudioUnitType_Generator;
speechcd.componentSubType = kAudioUnitSubType_SpeechSynthesis;
speechcd.componentManufacturer = kAudioUnitManufacturer_Apple;
// adds a node with above description to the graph
AUNode speechNode;
CheckError(AUGraphAddNode(player->graph, &speechcd, &speechNode),
"AUGraphAddNode[kAudioUnitSubType_SpeechSynthesis] failed");
// opening the graph opens all contained audio units but does not allocate any resources yet
CheckError(AUGraphOpen(player->graph),
"AUGraphOpen failed");
// get the reference to the AudioUnit object for the speech synthesis graph node
CheckError(AUGraphNodeInfo(player->graph, speechNode, NULL, &player->speechAU),
"AUGraphNodeInfo failed");
// // debug - get the asbd
// UInt32 propSize = sizeof (AudioStreamBasicDescription);
// CheckError(AudioUnitGetProperty(player->speechAU,
// kAudioUnitProperty_StreamFormat,
// kAudioUnitScope_Output,
// 0,
// &player->streamFormat,
// &propSize),
// "Couldn't get ASBD");
#ifdef PART_II
//
// FUN! re-route the speech thru a reverb effect before sending to speakers
//
// generate description that will match out reverb effect
AudioComponentDescription reverbcd = {0};
reverbcd.componentType = kAudioUnitType_Effect;
reverbcd.componentSubType = kAudioUnitSubType_MatrixReverb;
reverbcd.componentManufacturer = kAudioUnitManufacturer_Apple;
// adds a node with above description to the graph
AUNode reverbNode;
CheckError(AUGraphAddNode(player->graph, &reverbcd, &reverbNode),
"AUGraphAddNode[kAudioUnitSubType_MatrixReverb] failed");
// connect the output source of the speech synthesizer AU to the input source of the reverb node
CheckError(AUGraphConnectNodeInput(player->graph, speechNode, 0, reverbNode, 0),
"AUGraphConnectNodeInput");
// connect the output source of the reverb AU to the input source of the output node
CheckError(AUGraphConnectNodeInput(player->graph, reverbNode, 0, outputNode, 0),
"AUGraphConnectNodeInput");
// get the reference to the AudioUnit object for the reverb graph node
AudioUnit reverbUnit;
CheckError(AUGraphNodeInfo(player->graph, reverbNode, NULL, &reverbUnit),
"AUGraphNodeInfo failed");
/*
enum {
kReverbRoomType_SmallRoom = 0,
kReverbRoomType_MediumRoom = 1,
kReverbRoomType_LargeRoom = 2,
kReverbRoomType_MediumHall = 3,
kReverbRoomType_LargeHall = 4,
kReverbRoomType_Plate = 5,
kReverbRoomType_MediumChamber = 6,
kReverbRoomType_LargeChamber = 7,
kReverbRoomType_Cathedral = 8,
kReverbRoomType_LargeRoom2 = 9,
kReverbRoomType_MediumHall2 = 10,
kReverbRoomType_MediumHall3 = 11,
kReverbRoomType_LargeHall2 = 12
};
*/
// now initialize the graph (causes resources to be allocated)
CheckError(AUGraphInitialize(player->graph),
"AUGraphInitialize failed");
// set the reverb preset for room size
// UInt32 roomType = kReverbRoomType_SmallRoom;
// UInt32 roomType = kReverbRoomType_MediumRoom;
UInt32 roomType = kReverbRoomType_LargeHall;
// UInt32 roomType = kReverbRoomType_Cathedral;
CheckError(AudioUnitSetProperty(reverbUnit, kAudioUnitProperty_ReverbRoomType,
kAudioUnitScope_Global, 0, &roomType, sizeof(UInt32)),
"AudioUnitSetProperty[kAudioUnitProperty_ReverbRoomType] failed");
#else
// connect the output source of the speech synthesis AU to the input source of the output node
CheckError(AUGraphConnectNodeInput(player->graph, speechNode, 0, outputNode, 0),
"AUGraphConnectNodeInput");
// now initialize the graph (causes resources to be allocated)
CheckError(AUGraphInitialize(player->graph),
"AUGraphInitialize failed");
#endif
CAShow(player->graph);
}
