OSStatus CAPlayThrough::Init(AudioDeviceID input, AudioDeviceID output)
{
OSStatus err = noErr;
//Note: You can interface to input and output devices with "output" audio units.
//Please keep in mind that you are only allowed to have one output audio unit per graph (AUGraph).
//As you will see, this sample code splits up the two output units. The "output" unit that will
//be used for device input will not be contained in a AUGraph, while the "output" unit that will
//interface the default output device will be in a graph.
//Setup AUHAL for an input device
err = SetupAUHAL(input);
checkErr(err);
//Setup Graph containing Varispeed Unit & Default Output Unit
err = SetupGraph(output);
checkErr(err);
err = SetupBuffers();
checkErr(err);
// the varispeed unit should only be conected after the input and output formats have been set
err = AUGraphConnectNodeInput(mGraph, mVarispeedNode, 0, mOutputNode, 0);
checkErr(err);
err = AUGraphInitialize(mGraph);
checkErr(err);
//Add latency between the two devices
ComputeThruOffset();
return err;
}
bool midi_init(void)
{
OSStatus result;
result = CreateAUGraph();
if (result != 0) return false;
result = AUGraphInitialize(s_graph);
if (result != 0) return false;
result = AUGraphStart(s_graph);
if (result != 0) return false;
return true;
}
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();
}
bool FIOSAudioDevice::InitializeHardware()
{
SIZE_T SampleSize = sizeof(AudioSampleType);
double GraphSampleRate = 44100.0;
if (!SetHardwareSampleRate(GraphSampleRate) || !SetAudioSessionActive(true))
{
HandleError(TEXT("Failed to establish the audio session!"));
return false;
}
// Retrieve the actual hardware sample rate
GetHardwareSampleRate(GraphSampleRate);
// Linear PCM stream format
MixerFormat.mFormatID = kAudioFormatLinearPCM;
MixerFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked;
MixerFormat.mBytesPerPacket = SampleSize;
MixerFormat.mFramesPerPacket = 1;
MixerFormat.mBytesPerFrame = SampleSize;
MixerFormat.mChannelsPerFrame = 1;
MixerFormat.mBitsPerChannel = 8 * SampleSize;
MixerFormat.mSampleRate = GraphSampleRate;
OSStatus Status = NewAUGraph(&AudioUnitGraph);
if (Status != noErr)
{
HandleError(TEXT("Failed to create audio unit graph!"));
return false;
}
AudioComponentDescription UnitDescription;
// Setup audio output unit
UnitDescription.componentType = kAudioUnitType_Output;
UnitDescription.componentSubType = kAudioUnitSubType_RemoteIO;
UnitDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
UnitDescription.componentFlags = 0;
UnitDescription.componentFlagsMask = 0;
Status = AUGraphAddNode(AudioUnitGraph, &UnitDescription, &OutputNode);
if (Status != noErr)
{
HandleError(TEXT("Failed to initialize audio output node!"), true);
return false;
}
// Setup audo mixer unit
UnitDescription.componentType = kAudioUnitType_Mixer;
UnitDescription.componentSubType = kAudioUnitSubType_AU3DMixerEmbedded;
UnitDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
UnitDescription.componentFlags = 0;
UnitDescription.componentFlagsMask = 0;
Status = AUGraphAddNode(AudioUnitGraph, &UnitDescription, &MixerNode);
if (Status != noErr)
{
HandleError(TEXT("Failed to initialize audio mixer node!"), true);
return false;
}
Status = AUGraphOpen(AudioUnitGraph);
if (Status != noErr)
{
HandleError(TEXT("Failed to open audio unit graph"), true);
return false;
}
Status = AUGraphNodeInfo(AudioUnitGraph, OutputNode, NULL, &OutputUnit);
if (Status != noErr)
{
HandleError(TEXT("Failed to retrieve output unit reference!"), true);
return false;
}
Status = AUGraphNodeInfo(AudioUnitGraph, MixerNode, NULL, &MixerUnit);
if (Status != noErr)
{
HandleError(TEXT("Failed to retrieve mixer unit reference!"), true);
return false;
}
uint32 BusCount = MaxChannels * CHANNELS_PER_BUS;
Status = AudioUnitSetProperty(MixerUnit,
kAudioUnitProperty_ElementCount,
kAudioUnitScope_Input,
0,
&BusCount,
sizeof(BusCount));
if (Status != noErr)
{
HandleError(TEXT("Failed to set kAudioUnitProperty_ElementCount for audio mixer unit!"), true);
return false;
}
// Initialize sound source early on, allowing for render callback hookups
InitSoundSources();
// Setup the mixer unit sample rate
Status = AudioUnitSetProperty(MixerUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Output,
0,
&GraphSampleRate,
sizeof(GraphSampleRate));
if (Status != noErr)
{
HandleError(TEXT("Failed to set kAudioUnitProperty_SampleRate for audio mixer unit!"), true);
return false;
}
// Connect mixer node output to output node input
Status = AUGraphConnectNodeInput(AudioUnitGraph, MixerNode, 0, OutputNode, 0);
if (Status != noErr)
{
HandleError(TEXT("Failed to connect mixer node to output node!"), true);
return false;
}
// Initialize and start the audio unit graph
Status = AUGraphInitialize(AudioUnitGraph);
if (Status == noErr)
{
Status = AUGraphStart(AudioUnitGraph);
}
if (Status != noErr)
{
HandleError(TEXT("Failed to start audio graph!"), true);
return false;
}
return true;
}
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);
}
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);
}
MidiDevice *
openMidiDevice (int errorLevel, const char *device) {
MidiDevice *midi;
int result;
AUNode synthNode, outNode;
ComponentDescription cd;
UInt32 propVal;
if (!(midi = malloc(sizeof(*midi)))) {
logMallocError();
return NULL;
}
/* Create a graph with a software synth and a default output unit. */
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
if ((result = NewAUGraph(&midi->graph)) != noErr) {
logMessage(errorLevel, "Can't create audio graph component: %d", result);
goto err;
}
cd.componentType = kAudioUnitType_MusicDevice;
cd.componentSubType = kAudioUnitSubType_DLSSynth;
if ((result = AUGraphNewNode(midi->graph, &cd, 0, NULL, &synthNode))
!= noErr) {
logMessage(errorLevel, "Can't create software synthersizer component: %d",
result);
goto err;
}
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
if ((result = AUGraphNewNode(midi->graph, &cd, 0, NULL, &outNode))
!= noErr) {
logMessage(errorLevel, "Can't create default output audio component: %d",
result);
goto err;
}
if ((result = AUGraphOpen(midi->graph)) != noErr) {
logMessage(errorLevel, "Can't open audio graph component: %d", result);
goto err;
}
if ((result = AUGraphConnectNodeInput(midi->graph, synthNode, 0, outNode, 0))
!= noErr) {
logMessage(errorLevel, "Can't connect synth audio component to output: %d",
result);
goto err;
}
if ((result = AUGraphGetNodeInfo(midi->graph, synthNode, 0, 0, 0,
&midi->synth)) != noErr) {
logMessage(errorLevel, "Can't get audio component for software synth: %d",
result);
goto err;
}
if ((result = AUGraphInitialize(midi->graph)) != noErr) {
logMessage(errorLevel, "Can't initialize audio graph: %d", result);
goto err;
}
/* Turn off the reverb. The value range is -120 to 40 dB. */
propVal = false;
if ((result = AudioUnitSetProperty(midi->synth,
kMusicDeviceProperty_UsesInternalReverb,
kAudioUnitScope_Global, 0,
&propVal, sizeof(propVal)))
!= noErr) {
/* So, having reverb isn't that critical, is it? */
logMessage(LOG_DEBUG, "Can't turn of software synth reverb: %d",
result);
}
/* TODO: Maybe just start the graph when we are going to use it? */
if ((result = AUGraphStart(midi->graph)) != noErr) {
logMessage(errorLevel, "Can't start audio graph component: %d", result);
goto err;
}
return midi;
err:
if (midi->graph)
DisposeAUGraph(midi->graph);
free(midi);
return NULL;
}
int main(int argc, char *argv[])
{
WindowRef window;
HIViewRef content;
HIViewRef combo;
HIViewRef group;
HIViewRef check;
HIViewRef text;
HIViewRef slider;
HIViewRef quit;
MenuRef menu;
HIRect rect;
// Window bounds
Rect bounds = {0, 0, 436, 590};
// Create window
CreateNewWindow(kDocumentWindowClass,
kWindowStandardFloatingAttributes |
kWindowStandardHandlerAttribute |
kWindowInWindowMenuAttribute |
kWindowCompositingAttribute,
&bounds, &window);
// Set the title
SetWindowTitleWithCFString(window, CFSTR("Accordion"));
// Create an application menu
CreateNewMenu(0, 0, &menu);
// Set menu title
SetMenuTitleWithCFString(menu,
CFStringCreateWithPascalString(kCFAllocatorDefault,
"\p\024",
kCFStringEncodingMacRoman));
// Create an about item
InsertMenuItemTextWithCFString(menu, CFSTR("About Accordion"),
0, 0, kHICommandAbout);
// Insert the menu
InsertMenu(menu, 0);
// Create a standard window menu
CreateStandardWindowMenu(0, &menu);
// Insert the menu
InsertMenu(menu, 0);
// Show and position the window
ShowWindow(window);
RepositionWindow(window, NULL, kWindowCascadeOnMainScreen);
// Find the window content
HIViewFindByID(HIViewGetRoot(window),
kHIViewWindowContentID,
&content);
// Set bounds for group box
bounds.bottom = 92;
bounds.right = 550;
// Create group box
CreateGroupBoxControl(window, &bounds, NULL, true, &group);
// Place in the window
HIViewAddSubview(content, group);
HIViewPlaceInSuperviewAt(group, 20, 20);
// Bounds of text
bounds.bottom = 16;
bounds.right = 74;
// Create static text
CreateStaticTextControl(window, &bounds, CFSTR("Instrument:"),
NULL, &text);
// Place in the group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 16, 18);
// Bounds of combo box
rect.size.height = 20;
rect.size.width = 168;
// Create combo box
HIComboBoxCreate(&rect, CFSTR(" Accordion"), NULL, NULL,
kHIComboBoxStandardAttributes,
&combo);
// Set visible and set command ID
HIViewSetVisible(combo, true);
HIViewSetCommandID(combo, kCommandInst);
// Add the instruments
for (int i = 0; i < Length(instruments); i++)
{
HIComboBoxAppendTextItem(combo,
CFStringCreateWithCString(kCFAllocatorDefault,
instruments[i],
kCFStringEncodingMacRoman), NULL);
// Set the current instrument
if (strcmp(instruments[i], " Accordion") == 0)
instrument = i;
}
// Place in the group box
HIViewAddSubview(group, combo);
HIViewPlaceInSuperviewAt(combo, 102, 16);
// Bounds of check box
bounds.bottom = 18;
bounds.right = 121;
// Create check box
CreateCheckBoxControl(window, &bounds, CFSTR("Reverse"),
false, true, &check);
// Set the control ID and the command ID
HIViewSetID(check, kHIViewIDReverse);
HIViewSetCommandID(check, kCommandReverse);
// Place in the group box
HIViewAddSubview(group, check);
HIViewPlaceInSuperviewAt(check, 286, 17);
// Bounds of text
bounds.bottom = 16;
bounds.right = 32;
// Create static text
CreateStaticTextControl(window, &bounds, CFSTR("Key:"), NULL, &text);
// Place in the group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 400, 18);
// Bounds of combo box
rect.size.width = 90;
// Create combo box
HIComboBoxCreate(&rect, CFSTR(" A/D/G"), NULL, NULL,
kHIComboBoxStandardAttributes,
&combo);
// Set visible and set command ID
HIViewSetVisible(combo, true);
HIViewSetID(combo, kHIViewIDKey);
HIViewSetCommandID(combo, kCommandKey);
// Add keys
for (int i = 0; i < Length(keys); i++)
{
HIComboBoxAppendTextItem(combo,
CFStringCreateWithCString(kCFAllocatorDefault,
keys[i],
kCFStringEncodingMacRoman), NULL);
// Set current key
if (strcmp(keys[i], " A/D/G") == 0)
key = i;
}
// Place in the group box
HIViewAddSubview(group, combo);
HIViewPlaceInSuperviewAt(combo, 440, 16);
// Bounds of text
bounds.bottom = 16;
bounds.right = 54;
// Create static text
CreateStaticTextControl(window, &bounds, CFSTR("Volume:"), NULL, &text);
// Place in the group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 16, 56);
// Bounds of slider
bounds.bottom = 16;
bounds.right = 168;
// Create slider
CreateSliderControl(window, &bounds, MAXVOL, 0, MAXVOL,
kControlSliderDoesNotPoint, 0, false, NULL, &slider);
// Set command ID
HIViewSetCommandID(slider, kCommandVolume);
// Place in the group box
HIViewAddSubview(group, slider);
HIViewPlaceInSuperviewAt(slider, 100, 58);
// Bounds of check box
bounds.bottom = 18;
bounds.right = 121;
// Create check box
CreateCheckBoxControl(window, &bounds, CFSTR("Notes"),
false, true, &check);
// Set the control ID and the command ID
HIViewSetID(check, kHIViewIDNote);
HIViewSetCommandID(check, kCommandNote);
// Place in the group box
HIViewAddSubview(group, check);
HIViewPlaceInSuperviewAt(check, 286, 56);
// Bounds of push button
bounds.bottom = 20;
bounds.right = 90;
// Create push button
CreatePushButtonControl(window, &bounds, CFSTR("Quit"), &quit);
// Set command ID
HIViewSetCommandID(quit, kHICommandQuit);
// Place in the group box
HIViewAddSubview(group, quit);
HIViewPlaceInSuperviewAt(quit, 440, 54);
// Group box bounds
bounds.bottom = 48;
bounds.right = 550;
// Create group box
CreateGroupBoxControl(window, &bounds, NULL, true, &group);
// Place in the window
HIViewAddSubview(content, group);
HIViewPlaceInSuperviewAt(group, 20, 132);
// Font style
ControlFontStyleRec style;
style.flags = kControlUseFontMask|kControlUseJustMask;
style.font = kControlFontBigSystemFont;
style.just = teCenter;
// Bounds of text
bounds.bottom = 16;
bounds.right = 550;
// Create static text
CreateStaticTextControl(window, &bounds, CFSTR("Accordion"),
&style, &text);
// Place in the group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 0, 8);
// Bounds of text
bounds.bottom = 16;
bounds.right = 550;
// Create static text
CreateStaticTextControl(window, &bounds,
CFSTR("Play accordion on your keyboard"),
&style, &text);
// Place in the group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 0, 24);
// Group box bounds
bounds.bottom = 196;
bounds.right = 550;
// Create group box
CreateGroupBoxControl(window, &bounds, NULL, true, &group);
// Place in the window
HIViewAddSubview(content, group);
HIViewPlaceInSuperviewAt(group, 20, 200);
// Button bounds
bounds.bottom = SIZE;
bounds.right = SIZE;
// Create row of bass buttons
for (int i = 0; i < Length(bassdisplay); i++)
{
int x = 15 + 44 * i;
int y = 15;
// Create button
CreateBevelButtonControl(window, &bounds, NULL,
kControlBevelButtonNormalBevel,
kControlBehaviorPushbutton,
NULL, 0, 0, 0, &bassdisplay[i]);
// Place in the group box
HIViewAddSubview(group, bassdisplay[i]);
HIViewPlaceInSuperviewAt(bassdisplay[i], x, y);
}
// Create three rows of buttons
for (int i = 0; i < Length(display); i++)
{
for (int j = 0; j < ((i == 1)? Length(display[i]):
Length(display[i]) - 1); j++)
{
int x = (i == 1)? 37 + 44 * j: 59 + 44 * j;
int y = 59 + 44 * i;
// Create button
CreateBevelButtonControl(window, &bounds, NULL,
kControlBevelButtonNormalBevel,
kControlBehaviorPushbutton,
NULL, 0, 0, 0, &display[i][j]);
// Place in the group box
HIViewAddSubview(group, display[i][j]);
HIViewPlaceInSuperviewAt(display[i][j], x, y);
}
}
// Create spacebar button
CreateBevelButtonControl(window, &bounds, NULL,
kControlBevelButtonNormalBevel,
kControlBehaviorPushbutton,
NULL, 0, 0, 0, &spacebar);
// Place in the group box
HIViewAddSubview(group, spacebar);
HIViewPlaceInSuperviewAt(spacebar, 16, 147);
// Group box bounds, wider than the window to hide rounded corners
bounds.bottom = 20;
bounds.right = 598;
// Create group box for fake status bar
CreateGroupBoxControl(window, &bounds, NULL, false, &group);
// Place in window at negative offset to hide rounded corners
HIViewAddSubview(content, group);
HIViewPlaceInSuperviewAt(group, -4, 416);
// Text bounds
bounds.bottom = 16;
bounds.right = 590;
// Font style
style.flags = kControlUseFontMask|kControlUseJustMask;
style.font = kControlFontSmallSystemFont;
style.just = teCenter;
// Create static text
CreateStaticTextControl(window, &bounds,
CFSTR("Press the keyboard keys as accordion buttons "
"and the space bar as the bellows. 3rd button start."),
&style, &text);
// Place in group box
HIViewAddSubview(group, text);
HIViewPlaceInSuperviewAt(text, 0, 2);
// Application events type spec
EventTypeSpec applicationEvents[] =
{{kEventClassApplication, kEventAppFrontSwitched}};
// Install event handler
InstallApplicationEventHandler(NewEventHandlerUPP(ApplicationHandler),
Length(applicationEvents), applicationEvents,
NULL, NULL);
// Mouse events type spec
EventTypeSpec mouseEvents[] =
{{kEventClassMouse, kEventMouseDown}};
// Install event handler on the event dispatcher, so that we can
// see mouse events before the default handler gets them
InstallEventHandler(GetEventDispatcherTarget(),
NewEventHandlerUPP(MouseHandler),
Length(mouseEvents), mouseEvents,
NULL, NULL);
// Window events type spec
EventTypeSpec windowEvents[] =
{{kEventClassWindow, kEventWindowClose}};
// Install event handler
InstallWindowEventHandler(window, NewEventHandlerUPP(WindowHandler),
Length(windowEvents), windowEvents,
NULL, NULL);
// Combo box events type spec
EventTypeSpec comboBoxEvents[] =
{{kEventClassHIComboBox, kEventComboBoxListItemSelected}};
// Install event handler
InstallApplicationEventHandler(NewEventHandlerUPP(ComboBoxHandler),
Length(comboBoxEvents), comboBoxEvents,
NULL, NULL);
// Command events type spec
EventTypeSpec commandEvents[] =
{{kEventClassCommand, kEventCommandProcess}};
// Install event handler
InstallApplicationEventHandler(NewEventHandlerUPP(CommandHandler),
Length(commandEvents), commandEvents,
NULL, NULL);
// Keyboard events type spec
EventTypeSpec keyboardEvents[] =
{{kEventClassKeyboard, kEventRawKeyDown},
{kEventClassKeyboard, kEventRawKeyUp},
{kEventClassKeyboard, kEventRawKeyModifiersChanged}};
// Install event handler on the event dispatcher
InstallEventHandler(GetEventDispatcherTarget(),
NewEventHandlerUPP(KeyboardHandler),
Length(keyboardEvents), keyboardEvents,
NULL, NULL);
// Audio Unit graph
AUGraph graph;
// Audio Unit synthesizer and output node
AUNode synthNode;
AUNode outNode;
// Component description
ComponentDescription cd;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
do
{
// New AU graph
OSStatus status = NewAUGraph(&graph);
if (status != noErr)
{
DisplayAlert(CFSTR("NewAUGraph"),
CFSTR("Can't create a new AUGraph"),
status);
break;
}
// Synthesizer
cd.componentType = kAudioUnitType_MusicDevice;
cd.componentSubType = kAudioUnitSubType_DLSSynth;
// New synthesizer node
status = AUGraphNewNode(graph, &cd, 0, NULL, &synthNode);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphNewNode"),
CFSTR("Can't create a new AUGraph node"),
status);
break;
}
// Output
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
// New output node
status = AUGraphNewNode(graph, &cd, 0, NULL, &outNode);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphNewNode"),
CFSTR("Can't create a new AUGraph node"),
status);
break;
}
// Open graph
status = AUGraphOpen(graph);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphOpen"),
CFSTR("Can't open AUGraph"),
status);
break;
}
// Connect synthesizer node to output node
status = AUGraphConnectNodeInput(graph, synthNode, 0, outNode, 0);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphConnectNodeInput"),
CFSTR("Can't connect AUGraph input node"),
status);
break;
}
// Get a synthesizer unit
status =
AUGraphGetNodeInfo(graph, synthNode, NULL, 0, NULL, &synthUnit);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphGetNodeInfo"),
CFSTR("Can't get AUGraph node info"),
status);
break;
}
// Initialise
status = AUGraphInitialize(graph);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphInitialize"),
CFSTR("Can't initialize AUGraph"),
status);
break;
}
// Start
status = AUGraphStart(graph);
if (status != noErr)
{
DisplayAlert(CFSTR("AUGraphStart"),
CFSTR("Can't start AUGraph"),
status);
break;
}
// Show the graph
// CAShow(graph);
} while (false);
// Change instrument
ChangeInstrument(instrument);
// Run the application event loop
RunApplicationEventLoop();
// Stop the graph
AUGraphStop(graph);
// Dispose of the graph
DisposeAUGraph(graph);
// Exit
return 0;
}
int MidiDriver_CORE::open() {
OSStatus err = 0;
if (isOpen())
return MERR_ALREADY_OPEN;
// Open the Music Device.
RequireNoErr(NewAUGraph(&_auGraph));
AUNode outputNode, synthNode;
#if USE_DEPRECATED_COREAUDIO_API
ComponentDescription desc;
#else
AudioComponentDescription desc;
#endif
// The default output device
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_DefaultOutput;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
desc.componentFlags = 0;
desc.componentFlagsMask = 0;
#if USE_DEPRECATED_COREAUDIO_API
RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &outputNode));
#else
RequireNoErr(AUGraphAddNode(_auGraph, &desc, &outputNode));
#endif
// The built-in default (softsynth) music device
desc.componentType = kAudioUnitType_MusicDevice;
desc.componentSubType = kAudioUnitSubType_DLSSynth;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
#if USE_DEPRECATED_COREAUDIO_API
RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &synthNode));
#else
RequireNoErr(AUGraphAddNode(_auGraph, &desc, &synthNode));
#endif
// Connect the softsynth to the default output
RequireNoErr(AUGraphConnectNodeInput(_auGraph, synthNode, 0, outputNode, 0));
// Open and initialize the whole graph
RequireNoErr(AUGraphOpen(_auGraph));
RequireNoErr(AUGraphInitialize(_auGraph));
// Get the music device from the graph.
#if USE_DEPRECATED_COREAUDIO_API
RequireNoErr(AUGraphGetNodeInfo(_auGraph, synthNode, NULL, NULL, NULL, &_synth));
#else
RequireNoErr(AUGraphNodeInfo(_auGraph, synthNode, NULL, &_synth));
#endif
// Load custom soundfont, if specified
if (ConfMan.hasKey("soundfont")) {
FSRef fsref;
FSSpec fsSpec;
const char *soundfont = ConfMan.get("soundfont").c_str();
err = FSPathMakeRef ((const byte *)soundfont, &fsref, NULL);
if (err == noErr) {
err = FSGetCatalogInfo (&fsref, kFSCatInfoNone, NULL, NULL, &fsSpec, NULL);
}
if (err == noErr) {
// TODO: We should really check here whether the file contains an
// actual soundfont...
err = AudioUnitSetProperty (
_synth,
kMusicDeviceProperty_SoundBankFSSpec, kAudioUnitScope_Global,
0,
&fsSpec, sizeof(fsSpec)
);
}
if (err != noErr)
warning("Failed loading custom sound font '%s' (error %ld)\n", soundfont, (long)err);
}
#ifdef COREAUDIO_DISABLE_REVERB
// Disable reverb mode, as that sucks up a lot of CPU power, which can
// be painful on low end machines.
// TODO: Make this customizable via a config key?
UInt32 usesReverb = 0;
AudioUnitSetProperty (_synth, kMusicDeviceProperty_UsesInternalReverb,
kAudioUnitScope_Global, 0, &usesReverb, sizeof (usesReverb));
#endif
// Finally: Start the graph!
RequireNoErr(AUGraphStart(_auGraph));
return 0;
bail:
if (_auGraph) {
AUGraphStop(_auGraph);
DisposeAUGraph(_auGraph);
_auGraph = 0;
}
return MERR_CANNOT_CONNECT;
}
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 I_InitMusic (void)
{
#ifdef UNIX
struct stat buf;
if(stat("/etc/timidity.cfg", &buf) && stat("/etc/timidity/timidity.cfg", &buf))
Args.AppendArg("-nomusic");
#endif
if(Args.CheckParm("-nomusic"))
{
Printf (PRINT_HIGH, "I_InitMusic: Music playback disabled\n");
return;
}
#ifdef OSX
NewAUGraph(&graph);
ComponentDescription d;
d.componentType = kAudioUnitType_MusicDevice;
d.componentSubType = kAudioUnitSubType_DLSSynth;
d.componentManufacturer = kAudioUnitManufacturer_Apple;
d.componentFlags = 0;
d.componentFlagsMask = 0;
AUGraphNewNode(graph, &d, 0, NULL, &synth);
d.componentType = kAudioUnitType_Output;
d.componentSubType = kAudioUnitSubType_DefaultOutput;
d.componentManufacturer = kAudioUnitManufacturer_Apple;
d.componentFlags = 0;
d.componentFlagsMask = 0;
AUGraphNewNode(graph, &d, 0, NULL, &output);
if(AUGraphConnectNodeInput(graph, synth, 0, output, 0) != noErr)
{
Printf (PRINT_HIGH, "I_InitMusic: AUGraphConnectNodeInput failed\n");
return;
}
if(AUGraphOpen(graph) != noErr)
{
Printf (PRINT_HIGH, "I_InitMusic: AUGraphOpen failed\n");
return;
}
if(AUGraphInitialize(graph) != noErr)
{
Printf (PRINT_HIGH, "I_InitMusic: AUGraphInitialize failed\n");
return;
}
if(AUGraphGetNodeInfo(graph, output, NULL, NULL, NULL, &unit) != noErr)
{
Printf (PRINT_HIGH, "I_InitMusic: AUGraphGetNodeInfo failed\n");
return;
}
if(NewMusicPlayer(&player) != noErr)
{
Printf (PRINT_HIGH, "I_InitMusic: Music player creation failed using AudioToolbox\n");
return;
}
Printf (PRINT_HIGH, "I_InitMusic: Music playback enabled using AudioToolbox\n");
#else
Printf (PRINT_HIGH, "I_InitMusic: Music playback enabled\n");
#endif
music_initialized = true;
}
/* Make connections */
CoreAudioChkError(AUGraphOpen(*theGraph), "AUGraphOpen",);
/* Set Schedule properties and initialize the graph with the file */
AudioUnit anAU;
memset(&anAU, 0, sizeof(anAU));
CoreAudioChkError(AUGraphNodeInfo(*theGraph, fileNode, NULL, &anAU), "AUGraphNodeInfo",);
*fileAU = anAU;
CoreAudioChkError(AudioUnitSetProperty(*fileAU, kAudioUnitProperty_ScheduledFileIDs,
kAudioUnitScope_Global, 0, &audioFile, sizeof(audioFile)),
"SetScheduleFile",);
CoreAudioChkError(AUGraphConnectNodeInput(*theGraph, fileNode, 0, outputNode, 0), "AUGraphConnectNodeInput",);
CoreAudioChkError(AUGraphInitialize(*theGraph), "AUGraphInitialize",);
}
#elif HAVE_CANBERRA
#include <canberra.h>
#include <canberra-gtk.h>
#endif
const char *sound_description[NUM_SOUNDS] = {
N_("Starting GNU Backgammon"),
N_("Exiting GNU Backgammon"),
N_("Agree"),
N_("Doubling"),
N_("Drop"),
N_("Chequer movement"),
N_("Move"),
void MakeSimpleGraph (AUGraph &theGraph, CAAudioUnit &fileAU, CAStreamBasicDescription &fileFormat, AudioFileID audioFile)
{
XThrowIfError (NewAUGraph (&theGraph), "NewAUGraph");
CAComponentDescription cd;
// output node
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = kAudioUnitSubType_DefaultOutput;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
AUNode outputNode;
XThrowIfError (AUGraphAddNode (theGraph, &cd, &outputNode), "AUGraphAddNode");
// file AU node
AUNode fileNode;
cd.componentType = kAudioUnitType_Generator;
cd.componentSubType = kAudioUnitSubType_AudioFilePlayer;
XThrowIfError (AUGraphAddNode (theGraph, &cd, &fileNode), "AUGraphAddNode");
// connect & setup
XThrowIfError (AUGraphOpen (theGraph), "AUGraphOpen");
// install overload listener to detect when something is wrong
AudioUnit anAU;
XThrowIfError (AUGraphNodeInfo(theGraph, fileNode, NULL, &anAU), "AUGraphNodeInfo");
fileAU = CAAudioUnit (fileNode, anAU);
// prepare the file AU for playback
// set its output channels
XThrowIfError (fileAU.SetNumberChannels (kAudioUnitScope_Output, 0, fileFormat.NumberChannels()), "SetNumberChannels");
// set the output sample rate of the file AU to be the same as the file:
XThrowIfError (fileAU.SetSampleRate (kAudioUnitScope_Output, 0, fileFormat.mSampleRate), "SetSampleRate");
// load in the file
XThrowIfError (fileAU.SetProperty(kAudioUnitProperty_ScheduledFileIDs,
kAudioUnitScope_Global, 0, &audioFile, sizeof(audioFile)), "SetScheduleFile");
XThrowIfError (AUGraphConnectNodeInput (theGraph, fileNode, 0, outputNode, 0), "AUGraphConnectNodeInput");
// AT this point we make sure we have the file player AU initialized
// this also propogates the output format of the AU to the output unit
XThrowIfError (AUGraphInitialize (theGraph), "AUGraphInitialize");
// workaround a race condition in the file player AU
usleep (10 * 1000);
// if we have a surround file, then we should try to tell the output AU what the order of the channels will be
if (fileFormat.NumberChannels() > 2) {
UInt32 layoutSize = 0;
OSStatus err;
XThrowIfError (err = AudioFileGetPropertyInfo (audioFile, kAudioFilePropertyChannelLayout, &layoutSize, NULL),
"kAudioFilePropertyChannelLayout");
if (!err && layoutSize) {
char* layout = new char[layoutSize];
err = AudioFileGetProperty(audioFile, kAudioFilePropertyChannelLayout, &layoutSize, layout);
XThrowIfError (err, "Get Layout From AudioFile");
// ok, now get the output AU and set its layout
XThrowIfError (AUGraphNodeInfo(theGraph, outputNode, NULL, &anAU), "AUGraphNodeInfo");
err = AudioUnitSetProperty (anAU, kAudioUnitProperty_AudioChannelLayout,
kAudioUnitScope_Input, 0, layout, layoutSize);
XThrowIfError (err, "kAudioUnitProperty_AudioChannelLayout");
delete [] layout;
}
}
}
JNIEXPORT jint JNICALL Java_com_apple_audio_toolbox_AUGraph_AUGraphInitialize
(JNIEnv *, jclass, jint inGraph)
{
return (jint)AUGraphInitialize((AUGraph)inGraph);
}
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 CreateMyAUGraph(MyAUGraphPlayer *player)
{
// create a new AUGraph
CheckError(NewAUGraph(&player->graph),
"NewAUGraph failed");
// generate description that will match default output
// ComponentDescription outputcd = {0};
// outputcd.componentType = kAudioUnitType_Output;
// outputcd.componentSubType = kAudioUnitSubType_DefaultOutput;
// outputcd.componentManufacturer = kAudioUnitManufacturer_Apple;
//
// Component comp = FindNextComponent(NULL, &outputcd);
// if (comp == NULL) {
// printf ("can't get output unit"); exit (-1);
// }
AudioComponentDescription outputcd = {0};
outputcd.componentType = kAudioUnitType_Output;
outputcd.componentSubType = kAudioUnitSubType_DefaultOutput;
outputcd.componentManufacturer = kAudioUnitManufacturer_Apple;
AudioComponent comp = AudioComponentFindNext(NULL, &outputcd);
if (comp == NULL) {
printf ("can't get output unit"); exit (-1);
}
// adds a node with above description to the graph
AUNode outputNode;
CheckError(AUGraphAddNode(player->graph, &outputcd, &outputNode),
"AUGraphAddNode[kAudioUnitSubType_DefaultOutput] failed");
#ifdef PART_II
// add a mixer to the graph,
AudioComponentDescription mixercd = {0};
mixercd.componentType = kAudioUnitType_Mixer;
mixercd.componentSubType = kAudioUnitSubType_StereoMixer; // doesn't work: kAudioUnitSubType_MatrixMixer
mixercd.componentManufacturer = kAudioUnitManufacturer_Apple;
AUNode mixerNode;
CheckError(AUGraphAddNode(player->graph, &mixercd, &mixerNode),
"AUGraphAddNode[kAudioUnitSubType_StereoMixer] failed");
// adds a node with above description to the graph
AudioComponentDescription speechcd = {0};
speechcd.componentType = kAudioUnitType_Generator;
speechcd.componentSubType = kAudioUnitSubType_SpeechSynthesis;
speechcd.componentManufacturer = kAudioUnitManufacturer_Apple;
AUNode speechNode;
CheckError(AUGraphAddNode(player->graph, &speechcd, &speechNode),
"AUGraphAddNode[kAudioUnitSubType_AudioFilePlayer] 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 objects for the various nodes
CheckError(AUGraphNodeInfo(player->graph, outputNode, NULL, &player->outputUnit),
"AUGraphNodeInfo failed");
CheckError(AUGraphNodeInfo(player->graph, speechNode, NULL, &player->speechUnit),
"AUGraphNodeInfo failed");
AudioUnit mixerUnit;
CheckError(AUGraphNodeInfo(player->graph, mixerNode, NULL, &mixerUnit),
"AUGraphNodeInfo failed");
// set ASBDs here
UInt32 propertySize = sizeof (AudioStreamBasicDescription);
CheckError(AudioUnitSetProperty(player->outputUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
0,
&player->streamFormat,
propertySize),
"Couldn't set stream format on output unit");
// problem: badComponentInstance (-2147450879)
CheckError(AudioUnitSetProperty(mixerUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
0,
&player->streamFormat,
propertySize),
"Couldn't set stream format on mixer unit bus 0");
CheckError(AudioUnitSetProperty(mixerUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
1,
&player->streamFormat,
propertySize),
"Couldn't set stream format on mixer unit bus 1");
// connections
// mixer output scope / bus 0 to outputUnit input scope / bus 0
// mixer input scope / bus 0 to render callback (from ringbuffer, which in turn is from inputUnit)
// mixer input scope / bus 1 to speech unit output scope / bus 0
CheckError(AUGraphConnectNodeInput(player->graph, mixerNode, 0, outputNode, 0),
"Couldn't connect mixer output(0) to outputNode (0)");
CheckError(AUGraphConnectNodeInput(player->graph, speechNode, 0, mixerNode, 1),
"Couldn't connect speech synth unit output (0) to mixer input (1)");
AURenderCallbackStruct callbackStruct;
callbackStruct.inputProc = GraphRenderProc;
callbackStruct.inputProcRefCon = player;
CheckError(AudioUnitSetProperty(mixerUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Global,
0,
&callbackStruct,
sizeof(callbackStruct)),
"Couldn't set render callback on mixer unit");
#else
// 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 output graph node
CheckError(AUGraphNodeInfo(player->graph, outputNode, NULL, &player->outputUnit),
"AUGraphNodeInfo failed");
// set the stream format on the output unit's input scope
UInt32 propertySize = sizeof (AudioStreamBasicDescription);
CheckError(AudioUnitSetProperty(player->outputUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
0,
&player->streamFormat,
propertySize),
"Couldn't set stream format on output unit");
AURenderCallbackStruct callbackStruct;
callbackStruct.inputProc = GraphRenderProc;
callbackStruct.inputProcRefCon = player;
CheckError(AudioUnitSetProperty(player->outputUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Global,
0,
&callbackStruct,
sizeof(callbackStruct)),
"Couldn't set render callback on output unit");
#endif
// now initialize the graph (causes resources to be allocated)
CheckError(AUGraphInitialize(player->graph),
"AUGraphInitialize failed");
player->firstOutputSampleTime = -1;
printf ("Bottom of CreateSimpleAUGraph()\n");
}
bool CCoreAudioGraph::Open(ICoreAudioSource *pSource, AEAudioFormat &format,
AudioDeviceID deviceId, bool allowMixing, AudioChannelLayoutTag layoutTag)
{
AudioStreamBasicDescription fmt = {0};
AudioStreamBasicDescription inputFormat = {0};
AudioStreamBasicDescription outputFormat = {0};
m_deviceId = deviceId;
m_allowMixing = allowMixing;
OSStatus ret = NewAUGraph(&m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error create audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphOpen(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error open audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_audioUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error audio unit already open. double call ?");
return false;
}
m_audioUnit = new CAUOutputDevice();
if (!m_audioUnit->Open(m_audioGraph,
kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple))
return false;
m_audioUnit->SetBus(GetFreeBus());
m_audioUnit->GetFormatDesc(format, &inputFormat, &fmt);
if (!m_audioUnit->EnableInputOuput())
return false;
if (!m_audioUnit->SetCurrentDevice(deviceId))
return false;
if (allowMixing)
{
delete m_mixMap;
m_mixMap = CCoreAudioMixMap::CreateMixMap(m_audioUnit, format, layoutTag);
if (m_mixMap || m_mixMap->IsValid())
{
// maximum input channel ber input bus
//fmt.mChannelsPerFrame = MAXIMUM_MIXER_CHANNELS;
// get output unit
if (m_inputUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_inputUnit = new CAUOutputDevice();
if (!m_inputUnit->Open(m_audioGraph,
kAudioUnitType_FormatConverter, kAudioUnitSubType_AUConverter, kAudioUnitManufacturer_Apple))
return false;
if (!m_inputUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
if (!m_inputUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
return false;
// get mixer unit
if (m_mixerUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_mixerUnit = new CAUMatrixMixer();
if (!m_mixerUnit->Open(m_audioGraph,
kAudioUnitType_Mixer, kAudioUnitSubType_MatrixMixer, kAudioUnitManufacturer_Apple))
return false;
// set number of input buses
if (!m_mixerUnit->SetInputBusCount(MAX_CONNECTION_LIMIT))
return false;
// set number of output buses
if (!m_mixerUnit->SetOutputBusCount(1))
return false;
if (!m_mixerUnit->SetInputBusFormat(MAX_CONNECTION_LIMIT, &fmt))
return false;
if (!m_mixerUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
return false;
ret = AUGraphConnectNodeInput(m_audioGraph, m_mixerUnit->GetNode(), 0, m_audioUnit->GetNode(), 0);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error connecting m_m_mixerNode. Error = %s", GetError(ret).c_str());
return false;
}
m_mixerUnit->SetBus(0);
// configure output unit
int busNumber = GetFreeBus();
ret = AUGraphConnectNodeInput(m_audioGraph, m_inputUnit->GetNode(), 0, m_mixerUnit->GetNode(), busNumber);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error connecting m_converterNode. Error = %s", GetError(ret).c_str());
return false;
}
m_inputUnit->SetBus(busNumber);
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
// Update format structure to reflect the desired format from the mixer
// The output format of the mixer is identical to the input format, except for the channel count
fmt.mChannelsPerFrame = m_mixMap->GetOutputChannels();
UInt32 inputNumber = m_inputUnit->GetBus();
int channelOffset = GetMixerChannelOffset(inputNumber);
if (!CCoreAudioMixMap::SetMixingMatrix(m_mixerUnit, m_mixMap, &inputFormat, &fmt, channelOffset))
return false;
// Regenerate audio format and copy format for the Output AU
outputFormat = fmt;
}
else
{
outputFormat = inputFormat;
}
}
else
{
outputFormat = inputFormat;
}
if (!m_audioUnit->SetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error setting input format on audio device. Channel count %d, set it to %d",
(int)outputFormat.mChannelsPerFrame, format.m_channelLayout.Count());
outputFormat.mChannelsPerFrame = format.m_channelLayout.Count();
if (!m_audioUnit->SetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
}
std::string formatString;
// asume we are in dd-wave mode
if (!m_inputUnit)
{
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Output, kInputBus))
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error setting Device Output Stream Format %s",
StreamDescriptionToString(inputFormat, formatString));
}
}
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
AudioStreamBasicDescription inputDesc_end, outputDesc_end;
m_audioUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_audioUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kInputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
if (m_mixerUnit)
{
m_mixerUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_mixerUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
}
if (m_inputUnit)
{
m_inputUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_inputUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
UInt32 bufferFrames = m_audioUnit->GetBufferFrameSize();
if (!m_audioUnit->SetMaxFramesPerSlice(bufferFrames))
return false;
SetInputSource(pSource);
return Start();
}
OutputImplAudioUnit::OutputImplAudioUnit()
: mAvailableBuses(), OutputImpl()
{
OSStatus err = noErr;
NewAUGraph( &mGraph );
AudioComponentDescription cd;
cd.componentManufacturer = kAudioUnitManufacturer_Apple;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
//output node
cd.componentType = kAudioUnitType_Output;
cd.componentSubType = CINDER_AUDIOUNIT_OUTPUT_TYPE;
//connect & setup
AUGraphOpen( mGraph );
//initialize component - todo add error checking
if( AUGraphAddNode( mGraph, &cd, &mOutputNode ) != noErr ) {
std::cout << "Error 1!" << std::endl;
}
if( AUGraphNodeInfo( mGraph, mOutputNode, NULL, &mOutputUnit ) != noErr ) {
std::cout << "Error 2!" << std::endl;
}
UInt32 dsize;
#if defined( CINDER_MAC )
//get default output device id and set it as the outdevice for the output unit, unnessary on the iphone
dsize = sizeof( AudioDeviceID );
err = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultOutputDevice, &dsize, &mOutputDeviceId );
if( err != noErr ) {
std::cout << "Error getting default output device" << std::endl;
}
err = AudioUnitSetProperty( mOutputUnit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &mOutputDeviceId, sizeof( mOutputDeviceId ) );
if( err != noErr ) {
std::cout << "Error setting current output device" << std::endl;
}
#endif
//Tell the output unit not to reset timestamps
//Otherwise sample rate changes will cause sync los
UInt32 startAtZero = 0;
err = AudioUnitSetProperty( mOutputUnit, kAudioOutputUnitProperty_StartTimestampsAtZero, kAudioUnitScope_Global, 0, &startAtZero, sizeof( startAtZero ) );
if( err != noErr ) {
std::cout << "Error telling output unit not to reset timestamps" << std::endl;
}
//stereo mixer node
cd.componentType = kAudioUnitType_Mixer;
cd.componentSubType = kAudioUnitSubType_MultiChannelMixer;//kAudioUnitSubType_StereoMixer;
AUGraphAddNode( mGraph, &cd, &mMixerNode );
//setup mixer AU
err = AUGraphNodeInfo( mGraph, mMixerNode, NULL, &mMixerUnit );
if( err ) {
std::cout << "Error 4" << std::endl;
}
//TODO: cleanup error checking in all of this
//check the element count, if it's less than our default element count, increase, or else just leave it alone
err = AudioUnitGetProperty( mMixerUnit, kAudioUnitProperty_ElementCount, kAudioUnitScope_Input, 0, &mNumberBuses, &dsize );
if( err ) {
std::cout << "Error getting mixer unit input elements" << std::endl;
}
if( mNumberBuses < sDefaultNumberBuses ) {
mNumberBuses = sDefaultNumberBuses;
err = AudioUnitSetProperty( mMixerUnit, kAudioUnitProperty_ElementCount, kAudioUnitScope_Input, 0, &mNumberBuses, sizeof(mNumberBuses) );
if( err ) {
std::cout << "Error setting mixer unit input elements" << std::endl;
}
}
for( uint32_t i = 1; i <= mNumberBuses; i++ ) {
mAvailableBuses.push( mNumberBuses - i );
}
AUGraphConnectNodeInput( mGraph, mMixerNode, 0, mOutputNode, 0 );
AudioStreamBasicDescription outDesc;
UInt32 size = sizeof( outDesc );
err = AudioUnitGetProperty( mOutputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, &outDesc, &size );
if( err ) {
std::cout << "Error getting output unit stream format" << std::endl;
}
AUGraphInitialize( mGraph );
//Do all StreamFormat getting/setting after initialization,
//since that's when the output unit is actually hooked up to the hardware
dsize = sizeof( AudioStreamBasicDescription );
mPlayerDescription = new AudioStreamBasicDescription;
err = AudioUnitGetProperty( mOutputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, mPlayerDescription, &dsize );
if( err ) {
std::cout << "Error reading output unit stream format" << std::endl;
}
err = AudioUnitSetProperty( mMixerUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, mPlayerDescription, dsize );
if( err ) {
std::cout << "Error setting mixer unit output stream format" << std::endl;
}
err = AudioUnitSetProperty( mOutputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, mPlayerDescription, dsize );
if( err ) {
std::cout << "Error setting output unit input stream format" << std::endl;
}
//race condition work around??
usleep( 10 * 1000 );
//TODO: tell the output AU about the order of the channels if there are more than 2
// turn metering ON
//UInt32 data = 1;
//AudioUnitSetProperty( mMixerUnit, kAudioUnitProperty_MeteringMode, kAudioUnitScope_Global, 0, &data, sizeof(data) );
err = AudioUnitSetParameter( mMixerUnit, kMultiChannelMixerParam_Volume, kAudioUnitScope_Output, 0, CINDER_DEFAULT_VOLUME, 0 );
if( err ) {
std::cout << "error setting default volume" << std::cout;
}
err = AUGraphStart( mGraph );
if( err ) {
//throw
}
}
void setupAUGraph(MyMIDIPlayer *player) {
CheckError(NewAUGraph(&player->graph),
"Couldn't open AU Graph");
// 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");
AudioComponentDescription instrumentcd = {0};
instrumentcd.componentManufacturer = kAudioUnitManufacturer_Apple;
instrumentcd.componentType = kAudioUnitType_MusicDevice;
instrumentcd.componentSubType = kAudioUnitSubType_Sampler; // changed!
AUNode instrumentNode;
CheckError(AUGraphAddNode(player->graph, &instrumentcd, &instrumentNode),
"AUGraphAddNode[kAudioUnitSubType_DLSSynth] 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 instrument graph node
CheckError(AUGraphNodeInfo(player->graph, instrumentNode, NULL, &player->instrumentUnit),
"AUGraphNodeInfo failed");
// connect the output source of the instrument AU to the input source of the output node
CheckError(AUGraphConnectNodeInput(player->graph, instrumentNode, 0, outputNode, 0),
"AUGraphConnectNodeInput");
// now initialize the graph (causes resources to be allocated)
CheckError(AUGraphInitialize(player->graph),
"AUGraphInitialize failed");
// configure the AUSampler
// 2nd parameter obviously needs to be a full path on your system, and 3rd param is its length in characters
CFURLRef presetURL = CFURLCreateFromFileSystemRepresentation(
kCFAllocatorDefault,
"/Users/cadamson/Library/Audio/Presets/Apple/AUSampler/ch12-aupreset.aupreset",
77,
false);
// load preset file into a CFDataRef
CFDataRef presetData = NULL;
SInt32 errorCode = noErr;
Boolean gotPresetData =
CFURLCreateDataAndPropertiesFromResource(kCFAllocatorSystemDefault,
presetURL,
&presetData,
NULL,
NULL,
&errorCode);
CheckError(errorCode, "couldn't load .aupreset data");
CheckError(!gotPresetData, "couldn't load .aupreset data");
// convert this into a property list
CFPropertyListFormat presetPlistFormat = {0};
CFErrorRef presetPlistError = NULL;
CFPropertyListRef presetPlist = CFPropertyListCreateWithData(kCFAllocatorSystemDefault,
presetData,
kCFPropertyListImmutable,
&presetPlistFormat,
&presetPlistError);
if (presetPlistError) {
printf ("Couldn't create plist object for .aupreset");
return;
}
// set this plist as the kAudioUnitProperty_ClassInfo on _auSampler
if (presetPlist) {
CheckError(AudioUnitSetProperty(player->instrumentUnit,
kAudioUnitProperty_ClassInfo,
kAudioUnitScope_Global,
0,
&presetPlist,
sizeof(presetPlist)),
"Couldn't set aupreset plist as sampler's class info");
}
}
/**
* Initializes the audio device and creates sources.
*
* @return true if initialization was successful, false otherwise
*/
bool FCoreAudioDevice::InitializeHardware()
{
if (IsRunningDedicatedServer())
{
return false;
}
// Load ogg and vorbis dlls if they haven't been loaded yet
LoadVorbisLibraries();
InverseTransform = FMatrix::Identity;
for( SInt32 Index = 0; Index < MAX_AUDIOCHANNELS; ++Index )
{
Mixer3DInputStatus[ Index ] = false;
}
for( SInt32 Index = 0; Index < MAX_MULTICHANNEL_AUDIOCHANNELS; ++Index )
{
MatrixMixerInputStatus[ Index ] = false;
}
// Make sure the output audio device exists
AudioDeviceID HALDevice;
UInt32 Size = sizeof( AudioDeviceID );
AudioObjectPropertyAddress PropertyAddress;
PropertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
PropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
PropertyAddress.mElement = kAudioObjectPropertyElementMaster;
OSStatus Status = AudioObjectGetPropertyData( kAudioObjectSystemObject, &PropertyAddress, 0, NULL, &Size, &HALDevice );
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "No audio devices found!" ) );
return false;
}
Status = NewAUGraph( &AudioUnitGraph );
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to create audio unit graph!" ) );
return false;
}
AudioComponentDescription Desc;
Desc.componentFlags = 0;
Desc.componentFlagsMask = 0;
Desc.componentType = kAudioUnitType_Output;
Desc.componentSubType = kAudioUnitSubType_DefaultOutput;
Desc.componentManufacturer = kAudioUnitManufacturer_Apple;
Status = AUGraphAddNode( AudioUnitGraph, &Desc, &OutputNode );
if( Status == noErr )
{
Status = AUGraphOpen( AudioUnitGraph );
if( Status == noErr )
{
Status = AUGraphNodeInfo( AudioUnitGraph, OutputNode, NULL, &OutputUnit );
if( Status == noErr )
{
Status = AudioUnitInitialize( OutputUnit );
}
}
}
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to initialize audio output unit!" ) );
Teardown();
return false;
}
Desc.componentFlags = 0;
Desc.componentFlagsMask = 0;
Desc.componentType = kAudioUnitType_Mixer;
Desc.componentSubType = kAudioUnitSubType_3DMixer;
Desc.componentManufacturer = kAudioUnitManufacturer_Apple;
Status = AUGraphAddNode( AudioUnitGraph, &Desc, &Mixer3DNode );
if( Status == noErr )
{
Status = AUGraphNodeInfo( AudioUnitGraph, Mixer3DNode, NULL, &Mixer3DUnit );
if( Status == noErr )
{
Status = AudioUnitInitialize( Mixer3DUnit );
}
}
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to initialize audio 3D mixer unit!" ) );
Teardown();
return false;
}
Desc.componentFlags = 0;
Desc.componentFlagsMask = 0;
Desc.componentType = kAudioUnitType_Mixer;
Desc.componentSubType = kAudioUnitSubType_MatrixMixer;
Desc.componentManufacturer = kAudioUnitManufacturer_Apple;
Status = AUGraphAddNode( AudioUnitGraph, &Desc, &MatrixMixerNode );
if( Status == noErr )
{
Status = AUGraphNodeInfo( AudioUnitGraph, MatrixMixerNode, NULL, &MatrixMixerUnit );
// Set number of buses for input
uint32 NumBuses = MAX_MULTICHANNEL_AUDIOCHANNELS;
Size = sizeof( NumBuses );
Status = AudioUnitSetProperty( MatrixMixerUnit, kAudioUnitProperty_ElementCount, kAudioUnitScope_Input, 0, &NumBuses, Size );
if( Status == noErr )
{
// Set number fo buses for output
NumBuses = 1;
Status = AudioUnitSetProperty( MatrixMixerUnit, kAudioUnitProperty_ElementCount, kAudioUnitScope_Output, 0, &NumBuses, Size );
}
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to setup audio matrix mixer unit!" ) );
Teardown();
return false;
}
// Get default input stream format
Size = sizeof( AudioStreamBasicDescription );
Status = AudioUnitGetProperty( MatrixMixerUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &MatrixMixerInputFormat, &Size );
// Set output stream format to SPEAKER_COUT (6 channels)
MatrixMixerInputFormat.mChannelsPerFrame = SPEAKER_COUNT;
MatrixMixerInputFormat.mFramesPerPacket = 1;
MatrixMixerInputFormat.mBytesPerPacket = MatrixMixerInputFormat.mBytesPerFrame;
MatrixMixerInputFormat.mFormatFlags |= kAudioFormatFlagIsNonInterleaved;
for( int32 Index = 0; Index < MAX_MULTICHANNEL_AUDIOCHANNELS; Index++ )
{
Status = AudioUnitSetProperty( MatrixMixerUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, Index, &MatrixMixerInputFormat, Size );
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to setup audio matrix mixer unit input format!" ) );
Teardown();
return false;
}
}
// Set output stream format
Size = sizeof( AudioStreamBasicDescription );
Status = AudioUnitGetProperty( MatrixMixerUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, &MatrixMixerOutputFormat, &Size );
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to setup audio matrix mixer unit output format!" ) );
Teardown();
return false;
}
// Initialize Matrix Mixer unit
Status = AudioUnitInitialize( MatrixMixerUnit );
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to initialize audio matrix mixer unit!" ) );
Teardown();
return false;
}
// Enable Output
AudioUnitSetParameter( MatrixMixerUnit, kMatrixMixerParam_Enable, kAudioUnitScope_Output, 0, 1.0, 0 );
// Set Output volume
AudioUnitSetParameter( MatrixMixerUnit, kMatrixMixerParam_Volume, kAudioUnitScope_Output, 0, 1.0, 0 );
AudioUnitSetParameter( MatrixMixerUnit, kMatrixMixerParam_Volume, kAudioUnitScope_Output, 1, 1.0, 0 );
// Set Master volume
AudioUnitSetParameter( MatrixMixerUnit, kMatrixMixerParam_Volume, kAudioUnitScope_Global, 0xFFFFFFFF, 1.0, 0 );
}
Size = sizeof( AudioStreamBasicDescription );
Status = AudioUnitGetProperty( Mixer3DUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &Mixer3DFormat, &Size );
if( Status == noErr )
{
// Connect 3D Mixer to Output node
Status = AUGraphConnectNodeInput( AudioUnitGraph, Mixer3DNode, 0, OutputNode, 0 );
}
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to start audio graph!" ) );
Teardown();
return false;
}
// Connect Matrix Mixer to 3D Mixer node
Status = AUGraphConnectNodeInput( AudioUnitGraph, MatrixMixerNode, 0, Mixer3DNode, 0 );
Mixer3DInputStatus[0] = true;
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to start audio graph!" ) );
Teardown();
return false;
}
Status = AUGraphInitialize( AudioUnitGraph );
if( Status == noErr )
{
Status = AUGraphStart( AudioUnitGraph );
}
if( Status != noErr )
{
UE_LOG(LogInit, Log, TEXT( "Failed to start audio graph!" ) );
Teardown();
return false;
}
return true;
}
bool CCoreAudioGraph::Open(ICoreAudioSource *pSource, AEAudioFormat &format, bool allowMixing)
{
OSStatus ret;
AudioStreamBasicDescription inputFormat;
AudioStreamBasicDescription outputFormat;
m_allowMixing = allowMixing;
ret = NewAUGraph(&m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error create audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphOpen(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error open audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_audioUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error audio unit already open. double call ?");
return false;
}
m_audioUnit = new CAUOutputDevice();
if (!m_audioUnit->Open(m_audioGraph, kAudioUnitType_Output, kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple))
return false;
if (!m_audioUnit->EnableInputOuput())
return false;
m_audioUnit->GetFormatDesc(format, &inputFormat);
//if(!allowMixing)
//{
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Output, kInputBus))
return false;
//}
if (allowMixing)
{
// get mixer unit
if (m_mixerUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_mixerUnit = new CAUMultiChannelMixer();
if (!m_mixerUnit->Open(m_audioGraph, kAudioUnitType_Mixer, kAudioUnitSubType_MultiChannelMixer, kAudioUnitManufacturer_Apple))
return false;
// set number of input buses
if (!m_mixerUnit->SetInputBusCount(MAX_CONNECTION_LIMIT))
return false;
//if(!m_mixerUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
// return false;
m_mixerUnit->SetBus(0);
if (!m_audioUnit->GetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
/*
if(!m_mixerUnit->SetInputBusFormat(MAX_CONNECTION_LIMIT, &outputFormat))
return false;
*/
ret = AUGraphConnectNodeInput(m_audioGraph, m_mixerUnit->GetNode(), 0, m_audioUnit->GetNode(), 0);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error connecting m_m_mixerNode. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_inputUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_inputUnit = new CAUOutputDevice();
if (!m_inputUnit->Open(m_audioGraph, kAudioUnitType_FormatConverter, kAudioUnitSubType_AUConverter, kAudioUnitManufacturer_Apple))
return false;
if (!m_inputUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
/*
if(!m_inputUnit->SetFormat(&outputFormat, kAudioUnitScope_Output, kOutputBus))
return false;
*/
// configure output unit
int busNumber = GetFreeBus();
ret = AUGraphConnectNodeInput(m_audioGraph, m_inputUnit->GetNode(), 0, m_mixerUnit->GetNode(), busNumber);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error connecting m_converterNode. Error = %s", GetError(ret).c_str());
return false;
}
m_inputUnit->SetBus(busNumber);
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
// Regenerate audio format and copy format for the Output AU
}
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
std::string formatString;
AudioStreamBasicDescription inputDesc_end, outputDesc_end;
m_audioUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_audioUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kInputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
if (m_mixerUnit)
{
m_mixerUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_mixerUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
}
if (m_inputUnit)
{
m_inputUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_inputUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
UInt32 bufferFrames = m_audioUnit->GetBufferFrameSize();
m_audioUnit->SetMaxFramesPerSlice(bufferFrames);
if (m_inputUnit)
m_inputUnit->SetMaxFramesPerSlice(bufferFrames);
SetInputSource(pSource);
ShowGraph();
return Start();
}
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;
}
/**
* Starts playing a new song.
*
* @param filename Path to a MIDI file.
*/
void MusicDriver_Cocoa::PlaySong(const char *filename)
{
DEBUG(driver, 2, "cocoa_m: trying to play '%s'", filename);
this->StopSong();
if (_sequence != NULL) {
DisposeMusicSequence(_sequence);
_sequence = NULL;
}
if (NewMusicSequence(&_sequence) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to create music sequence");
return;
}
const char *os_file = OTTD2FS(filename);
CFURLRef url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8*)os_file, strlen(os_file), false);
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
if (MacOSVersionIsAtLeast(10, 5, 0)) {
if (MusicSequenceFileLoad(_sequence, url, 0, 0) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to load MIDI file");
CFRelease(url);
return;
}
} else
#endif
{
#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5)
FSRef ref_file;
if (!CFURLGetFSRef(url, &ref_file)) {
DEBUG(driver, 0, "cocoa_m: Failed to make FSRef");
CFRelease(url);
return;
}
if (MusicSequenceLoadSMFWithFlags(_sequence, &ref_file, 0) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to load MIDI file old style");
CFRelease(url);
return;
}
#endif
}
CFRelease(url);
/* Construct audio graph */
AUGraph graph = NULL;
MusicSequenceGetAUGraph(_sequence, &graph);
AUGraphOpen(graph);
if (AUGraphInitialize(graph) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to initialize AU graph");
return;
}
/* Figure out sequence length */
UInt32 num_tracks;
MusicSequenceGetTrackCount(_sequence, &num_tracks);
_seq_length = 0;
for (UInt32 i = 0; i < num_tracks; i++) {
MusicTrack track = NULL;
MusicTimeStamp track_length = 0;
UInt32 prop_size = sizeof(MusicTimeStamp);
MusicSequenceGetIndTrack(_sequence, i, &track);
MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength, &track_length, &prop_size);
if (track_length > _seq_length) _seq_length = track_length;
}
/* Add 8 beats for reverb/long note release */
_seq_length += 8;
DoSetVolume();
MusicPlayerSetSequence(_player, _sequence);
MusicPlayerPreroll(_player);
if (MusicPlayerStart(_player) != noErr) return;
_playing = true;
DEBUG(driver, 3, "cocoa_m: playing '%s'", filename);
}
int QBSoundMac::initGraph()
{
OSStatus err;
mAudioFormat.mSampleRate = 44100.000000;
mAudioFormat.mFormatID = kAudioFormatLinearPCM;
#ifdef __FLOAT_BUFFER__
mAudioFormat.mFormatFlags = 0
| kLinearPCMFormatFlagIsPacked
| kLinearPCMFormatFlagIsFloat
#if __BIG_ENDIAN__
| kLinearPCMFormatFlagIsBigEndian
#endif
;
mAudioFormat.mBytesPerPacket = 8;
mAudioFormat.mFramesPerPacket = 1;
mAudioFormat.mBytesPerFrame = 8;
mAudioFormat.mChannelsPerFrame = 2;
mAudioFormat.mBitsPerChannel = 32;
mAudioFormat.mReserved = 0;
#else
mAudioFormat.mFormatFlags = 0
| kLinearPCMFormatFlagIsPacked
| kLinearPCMFormatFlagIsSignedInteger
#if __BIG_ENDIAN__
| kLinearPCMFormatFlagIsBigEndian
#endif
;
mAudioFormat.mBytesPerPacket = 4;
mAudioFormat.mFramesPerPacket = 1;
mAudioFormat.mBytesPerFrame = 4;
mAudioFormat.mChannelsPerFrame = 2;
mAudioFormat.mBitsPerChannel = 16;
mAudioFormat.mReserved = 0;
#endif
err = NewAUGraph(&mGraph);
#if !TARGET_OS_IPHONE
AudioComponentDescription description;
description.componentSubType = kAudioUnitSubType_DefaultOutput;
#else
AudioComponentDescription description;
description.componentSubType = kAudioUnitSubType_RemoteIO;
#endif
description.componentType = kAudioUnitType_Output;
description.componentManufacturer = kAudioUnitManufacturer_Apple;
description.componentFlags = 0;
description.componentFlagsMask = 0;
#if 1
err = AUGraphAddNode(mGraph,&description,&mOutputNode);
#else
err = AUGraphNewNode(mGraph,&description, 0, NULL, &mOutputNode);
#endif
err = AUGraphOpen(mGraph);
#if 1
err = AUGraphNodeInfo(mGraph,mOutputNode,NULL,&mAudioUnit);
#else
err = AUGraphGetNodeInfo(mGraph,mOutputNode,NULL,NULL,NULL,&mAudioUnit);
#endif
err = AudioUnitSetProperty(mAudioUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
0,
&mAudioFormat,
sizeof(AudioStreamBasicDescription));
{
AURenderCallbackStruct input;
input.inputProc = callback;
input.inputProcRefCon = this;
err = AudioUnitSetProperty(mAudioUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Input,
0,
&input, sizeof(input));
}
// {
// AudioUnitSetParameter (mAudioUnit,
// kHALOutputParam_Volume,
// kAudioUnitScope_Global,0,1,0);
// }
err = AUGraphInitialize(mGraph);
//err = AUGraphStart(mGraph);
//pthread_mutex_init(&mLoaderThreadMutex,NULL);
#ifdef __USE_OGG_VORBIS__
mThreadEnd = false;
pthread_create(&mLoaderThread,NULL,LoaderThreadProc,this);
#endif
// mOpenGraph = false;
// mInitGraph = false;
// startAUGraph();
//printf("openAUGraph\n");
return err;
}
