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;
}
int main (int argc, const char * argv[])
{
char* filePath = NULL;
bool overwrite = false;
ComponentDescription compDesc = {0, 0, 0, 0, 0};
AudioFileID inputFileID = 0;
AudioFileID outputFileID = 0;
CAStreamBasicDescription desc;
AudioUnit theUnit = 0;
setbuf (stdout, NULL);
for (int i = 1; i < argc; ++i)
{
if (strcmp (argv[i], "-u") == 0) {
if ( (i + 3) < argc ) {
compDesc.componentType = str2OSType (argv[i + 1]);
compDesc.componentSubType = str2OSType (argv[i + 2]);
compDesc.componentManufacturer = str2OSType (argv[i + 3]);
Component comp = FindNextComponent (NULL, &compDesc);
if (comp == NULL)
break;
OpenAComponent (comp, &theUnit);
i += 3;
} else {
printf ("Which Component:\n%s", usageStr);
return -1;
}
}
else if (strcmp (argv[i], "-f") == 0) {
filePath = const_cast<char*>(argv[++i]);
printf ("Input File:%s\n", filePath);
}
else if (strcmp (argv[i], "-o") == 0) {
overwrite = true;
}
else {
printf ("%s\n", usageStr);
return -1;
}
}
if (compDesc.componentType == 0) {
printf ("Must specify AU:\n%s\n", usageStr);
return -1;
}
if (theUnit == 0) {
printf ("Can't find specified unit\n");
return -1;
}
if (filePath == NULL) {
printf ("Must specify file to process:\n%s\n", usageStr);
return -1;
}
OSStatus result = 0;
if (result = InputFile (filePath, inputFileID)) {
printf ("Result = %ld, parsing input file, exit...\n", result);
return result;
}
UInt32 fileType;
UInt32 size = sizeof (fileType);
result = AudioFileGetProperty (inputFileID, kAudioFilePropertyFileFormat, &size, &fileType);
if (result) {
printf ("Error getting File Type of input file:%ld, exit...\n", result);
return result;
}
size = sizeof (desc);
result = AudioFileGetProperty (inputFileID, kAudioFilePropertyDataFormat, &size, &desc);
if (result) {
printf ("Error getting File Format of input file:%ld, exit...\n", result);
return result;
}
if (desc.IsPCM() == false) {
printf ("Only processing linear PCM file types and data:\n");
desc.Print();
return -1;
}
result = OutputFile (filePath, fileType, compDesc.componentSubType, overwrite, desc, outputFileID);
if (result) {
printf ("Error creating output file:%ld, exit...\n", result);
return result;
}
// at this point we're ready to process
return Process (theUnit, compDesc, inputFileID, desc, outputFileID);
}
void ParseArgs (int argc, char * const argv[],
AudioFileTypeID & outFormat,
Float64 & outSampleRate,
OSType & outFileType,
CFURLRef& outInputFileURL,
CFURLRef& outOutputFileURL,
UInt32 & outBitDepth,
UInt32 & outBitRate)
{
if (argc < 2) {
printf ("No Input File specified\n");
UsageString(1);
}
// support "ConvertFile -h" usage
if (argc == 2 && !strcmp("-h", argv[1])) {
UsageString(0);
}
// first validate our initial condition
const char* inputFileName = argv[1];
outInputFileURL = CFURLCreateFromFileSystemRepresentation (kCFAllocatorDefault, (const UInt8 *)inputFileName, strlen(inputFileName), false);
if (!outInputFileURL) {
printf ("* * Bad input file path\n");
UsageString(1);
}
outBitRate = 0;
outBitDepth = 0;
// look to see if a format or different file output has been specified
for (int i = 2; i < argc; ++i) {
if (!strcmp ("-d", argv[i])) {
str2OSType (argv[++i], outFormat);
outSampleRate = 0;
}
else if (!strcmp ("-r", argv[i])) {
sscanf (argv[++i], "%lf", &outSampleRate);
outFormat = 0;
}
else if (!strcmp("-bd", argv[i])) {
int temp;
sscanf (argv[++i], "%d", &temp);
outBitDepth = temp;
}
else if (!strcmp ("-f", argv[i])) {
str2OSType (argv[++i], outFileType);
}
else if (!strcmp ("-b", argv[i])) {
int temp;
sscanf (argv[++i], "%u", &temp);
outBitRate = temp;
}
else if (!strcmp ("-h", argv[i])) {
UsageString(0);
}
else {
printf ("* * Unknown command: %s\n", argv[i]);
UsageString(1);
}
}
// output file
UInt32 size = sizeof(CFArrayRef);
CFArrayRef extensions;
OSStatus err = AudioFileGetGlobalInfo(kAudioFileGlobalInfo_ExtensionsForType,
sizeof(OSType), &outFileType,
&size, &extensions);
XThrowIfError (err, "Getting the file extensions for file type");
// just take the first extension
CFStringRef ext = (CFStringRef)CFArrayGetValueAtIndex(extensions, 0);
char extstr[32];
Boolean res = CFStringGetCString(ext, extstr, 32, kCFStringEncodingUTF8);
XThrowIfError (!res, "CFStringGetCString");
// release the array as we're done with this now
CFRelease (extensions);
char outFname[256];
#if TARGET_OS_WIN32
char drive[3], dir[256];
_splitpath_s(inputFileName, drive, 3, dir, 256, NULL, 0, NULL, 0);
_makepath_s(outFname, 256, drive, dir, "outfile", extstr);
#else
// char outFname[64];
sprintf (outFname, "/tmp/outfile.%s", extstr);
#endif
outOutputFileURL = CFURLCreateFromFileSystemRepresentation (kCFAllocatorDefault, (const UInt8 *)outFname, strlen(outFname), false);
if (!outOutputFileURL) {
printf ("* * Bad output file path\n");
UsageString(1);
}
}
