static SampleSourceType _sampleSourceGuess(const CharString sampleSourceName)
{
File sourceFile = NULL;
CharString sourceFileExtension = NULL;
SampleSourceType result = SAMPLE_SOURCE_TYPE_PCM;
if (sampleSourceName == NULL || charStringIsEmpty(sampleSourceName)) {
result = SAMPLE_SOURCE_TYPE_SILENCE;
} else {
// Look for stdin/stdout
if (strlen(sampleSourceName->data) == 1 && sampleSourceName->data[0] == '-') {
result = SAMPLE_SOURCE_TYPE_PCM;
} else {
sourceFile = newFileWithPath(sampleSourceName);
sourceFileExtension = fileGetExtension(sourceFile);
freeFile(sourceFile);
// If there is no file extension, then automatically assume raw PCM data. Deal with it!
if (charStringIsEmpty(sourceFileExtension)) {
result = SAMPLE_SOURCE_TYPE_PCM;
}
// Possible file extensions for raw PCM data
else if (charStringIsEqualToCString(sourceFileExtension, "pcm", true) ||
charStringIsEqualToCString(sourceFileExtension, "raw", true) ||
charStringIsEqualToCString(sourceFileExtension, "dat", true)) {
result = SAMPLE_SOURCE_TYPE_PCM;
}
#if USE_AUDIOFILE
else if (charStringIsEqualToCString(sourceFileExtension, "aif", true) ||
charStringIsEqualToCString(sourceFileExtension, "aiff", true)) {
result = SAMPLE_SOURCE_TYPE_AIFF;
}
#endif
#if USE_FLAC
else if (charStringIsEqualToCString(sourceFileExtension, "flac", true)) {
result = SAMPLE_SOURCE_TYPE_FLAC;
}
#endif
else if (charStringIsEqualToCString(sourceFileExtension, "wav", true) ||
charStringIsEqualToCString(sourceFileExtension, "wave", true)) {
result = SAMPLE_SOURCE_TYPE_WAVE;
} else {
logCritical("Sample source '%s' does not match any supported type", sampleSourceName->data);
result = SAMPLE_SOURCE_TYPE_INVALID;
}
}
}
freeCharString(sourceFileExtension);
return result;
}
static PluginPresetType _pluginPresetGuessType(const CharString presetName) {
const char* fileExtension;
size_t i;
if(presetName == NULL || charStringIsEmpty(presetName)) {
return PRESET_TYPE_INVALID;
}
fileExtension = getFileExtension(presetName->data);
if(fileExtension == NULL) {
for(i = 0; i < strlen(presetName->data); i++) {
if(!charStringIsNumber(presetName, i)) {
return PRESET_TYPE_INVALID;
}
}
// If the preset name is all numeric, then it's an internal program number
return PRESET_TYPE_INTERNAL_PROGRAM;
}
else if(!strcasecmp(fileExtension, "fxp")) {
return PRESET_TYPE_FXP;
}
else {
logCritical("Preset '%s' does not match any supported type", presetName->data);
return PRESET_TYPE_INVALID;
}
}
boolByte errorReporterCopyPlugins(ErrorReporter self, PluginChain pluginChain) {
CharString pluginAbsolutePath = NULL;
Plugin currentPlugin = NULL;
boolByte failed = false;
unsigned int i;
PlatformInfo platform = newPlatformInfo();
for (i = 0; i < pluginChain->numPlugins; i++) {
currentPlugin = pluginChain->plugins[i];
pluginAbsolutePath = currentPlugin->pluginAbsolutePath;
if (charStringIsEmpty(pluginAbsolutePath)) {
logInfo(
"Plugin '%s' does not have an absolute path and could not be copied",
currentPlugin->pluginName->data);
} else if (platform->type == PLATFORM_MACOSX) {
failed |= !_copyDirectoryToErrorReportDir(self, pluginAbsolutePath);
} else {
failed |= !errorReportCopyFileToReport(self, pluginAbsolutePath);
}
}
freePlatformInfo(platform);
return (boolByte)!failed;
}
static int _testBuildAbsolutePathNullFile(void) {
CharString d = getCurrentDirectory();
CharString out = newCharString();
buildAbsolutePath(d, NULL, NULL, out);
assert(charStringIsEmpty(out));
freeCharString(d);
freeCharString(out);
return 0;
}
static int _testBuildAbsolutePathNullPath(void) {
CharString f = newCharString();
CharString out = newCharString();
buildAbsolutePath(NULL, f, NULL, out);
assert(charStringIsEmpty(out));
freeCharString(f);
freeCharString(out);
return 0;
}
boolByte programOptionsParseConfigFile(ProgramOptions self, const CharString filename) {
boolByte result = false;
File configFile = NULL;
LinkedList configFileLines = NULL;
CharString* argvCharStrings;
int argc;
char** argv;
int i;
if(filename == NULL || charStringIsEmpty(filename)) {
logCritical("Cannot read options from empty filename");
return false;
}
configFile = newFileWithPath(filename);
if(configFile == NULL || configFile->fileType != kFileTypeFile) {
logCritical("Cannot read options from non-existent file '%s'", filename->data);
freeFile(configFile);
return false;
}
configFileLines = fileReadLines(configFile);
if(configFileLines == NULL) {
logInternalError("Could not split config file lines");
return false;
}
else if(linkedListLength(configFileLines) == 0) {
logInfo("Config file '%s' is empty", filename->data);
freeLinkedList(configFileLines);
freeFile(configFile);
return true;
}
else {
// Don't need the file anymore, it can be freed here
freeFile(configFile);
}
argvCharStrings = (CharString*)linkedListToArray(configFileLines);
argc = linkedListLength(configFileLines);
argv = (char**)malloc(sizeof(char*) * (argc + 1));
// Normally this would be the application name, don't care about it here
argv[0] = NULL;
for(i = 0; i < argc; i++) {
argv[i + 1] = argvCharStrings[i]->data;
}
argc++;
result = programOptionsParseArgs(self, argc, argv);
freeLinkedListAndItems(configFileLines, (LinkedListFreeItemFunc)freeCharString);
free(argvCharStrings);
free(argv);
return result;
}
static int _testBuildAbsolutePathEmptyPath(void) {
CharString d = newCharString();
CharString f = newCharStringWithCString(TEST_FILENAME);
CharString out = newCharString();
buildAbsolutePath(d, f, NULL, out);
assert(charStringIsEmpty(out));
freeCharString(d);
freeCharString(f);
freeCharString(out);
return 0;
}
void buildAbsolutePath(const CharString directory, const CharString file, const char* fileExtension, CharString outString) {
const char* extension;
CharString absoluteDirectory;
if(directory == NULL || charStringIsEmpty(directory)) {
logWarn("Attempt to build absolute path with empty directory");
return;
}
if(file == NULL || charStringIsEmpty(file)) {
logWarn("Attempt to build absolute path with empty file");
return;
}
absoluteDirectory = newCharString();
if(isAbsolutePath(directory)) {
charStringCopy(absoluteDirectory, directory);
}
else {
convertRelativePathToAbsolute(directory, absoluteDirectory);
}
if(fileExtension != NULL) {
// Ignore attempts to append the same extension as is already on the file
extension = getFileExtension(file->data);
if(extension != NULL && !strncasecmp(extension, fileExtension, strlen(extension))) {
buildAbsolutePath(absoluteDirectory, file, NULL, outString);
}
else {
snprintf(outString->data, outString->length, "%s%c%s.%s",
absoluteDirectory->data, PATH_DELIMITER, file->data, fileExtension);
}
}
else {
snprintf(outString->data, outString->length, "%s%c%s",
absoluteDirectory->data, PATH_DELIMITER, file->data);
}
freeCharString(absoluteDirectory);
}
void setLoggingColorEnabledWithString(const CharString colorSchemeName)
{
if (charStringIsEmpty(colorSchemeName)) {
setLoggingColorEnabled(false);
} else if (charStringIsEqualToCString(colorSchemeName, "none", false)) {
setLoggingColorEnabled(false);
} else if (charStringIsEqualToCString(colorSchemeName, "auto", false)) {
setLoggingColorEnabled((boolByte)isatty(1));
} else if (charStringIsEqualToCString(colorSchemeName, "force", false)) {
setLoggingColorEnabled(true);
} else {
// Use critical log level to avoid colors
logCritical("Unknown color scheme '%s'", colorSchemeName->data);
}
}
SampleSourceType sampleSourceGuess(const CharString sampleSourceTypeString) {
if(!charStringIsEmpty(sampleSourceTypeString)) {
// Look for stdin/stdout
if(strlen(sampleSourceTypeString->data) == 1 && sampleSourceTypeString->data[0] == '-') {
return SAMPLE_SOURCE_TYPE_PCM;
}
else {
const char* fileExtension = getFileExtension(sampleSourceTypeString->data);
// If there is no file extension, then automatically assume raw PCM data. Deal with it!
if(fileExtension == NULL) {
return SAMPLE_SOURCE_TYPE_PCM;
}
// Possible file extensions for raw PCM data
else if(!strcasecmp(fileExtension, "pcm") || !strcasecmp(fileExtension, "raw") || !strcasecmp(fileExtension, "dat")) {
return SAMPLE_SOURCE_TYPE_PCM;
}
else if(!strcasecmp(fileExtension, "aif") || !strcasecmp(fileExtension, "aiff")) {
return SAMPLE_SOURCE_TYPE_AIFF;
}
#if HAVE_LIBFLAC
else if(!strcasecmp(fileExtension, "flac")) {
return SAMPLE_SOURCE_TYPE_FLAC;
}
#endif
#if HAVE_LIBLAME
else if(!strcasecmp(fileExtension, "mp3")) {
return SAMPLE_SOURCE_TYPE_MP3;
}
#endif
#if HAVE_LIBVORBIS
else if(!strcasecmp(fileExtension, "ogg")) {
return SAMPLE_SOURCE_TYPE_OGG;
}
#endif
else if(!strcasecmp(fileExtension, "wav") || !strcasecmp(fileExtension, "wave")) {
return SAMPLE_SOURCE_TYPE_WAVE;
}
else {
logCritical("Sample source '%s' does not match any supported type", sampleSourceTypeString->data);
return SAMPLE_SOURCE_TYPE_INVALID;
}
}
}
else {
return SAMPLE_SOURCE_TYPE_INVALID;
}
}
void _programOptionPrintDefaultValue(const ProgramOption self) {
CharString stringValue;
switch(self->type) {
case kProgramOptionTypeString:
stringValue = _programOptionGetString(self);
if(stringValue != NULL && !charStringIsEmpty(stringValue)) {
printf(", default value '%s'", stringValue->data);
}
break;
case kProgramOptionTypeNumber:
printf(", default value: %.0f", _programOptionGetNumber(self));
break;
default:
break;
}
}
boolByte setTimeSignatureFromString(const CharString signature) {
char *slash = NULL;
unsigned short numerator = 0;
unsigned short denominator = 0;
if (!charStringIsEmpty(signature)) {
slash = strchr(signature->data, '/');
if (slash != NULL) {
*slash = '\0';
numerator = (unsigned short)strtod(signature->data, NULL);
denominator = (unsigned short)strtod(slash + 1, NULL);
if (numerator > 0 && denominator > 0) {
return (boolByte)(setTimeSignatureBeatsPerMeasure(numerator) &&
setTimeSignatureNoteValue(denominator));
}
}
}
return false;
}
static PluginInterfaceType _guessPluginInterfaceType(const CharString pluginName, const CharString pluginSearchRoot) {
PluginInterfaceType pluginType = PLUGIN_TYPE_INVALID;
if(pluginName == NULL || charStringIsEmpty(pluginName)) {
logError("Attempt to guess plugin with empty name");
return pluginType;
}
logDebug("Trying to find plugin '%s'", pluginName->data);
if(pluginVst2xExists(pluginName, pluginSearchRoot)) {
logInfo("Plugin '%s' is of type VST2.x", pluginName->data);
pluginType = PLUGIN_TYPE_VST_2X;
}
else if(!strncmp(INTERNAL_PLUGIN_PREFIX, pluginName->data, strlen(INTERNAL_PLUGIN_PREFIX))) {
logInfo("Plugin '%s' is an internal plugin", pluginName->data);
pluginType = PLUGIN_TYPE_INTERNAL;
}
else {
logError("Plugin '%s' could not be found", pluginName->data);
}
return pluginType;
}
int mrsWatsonMain(ErrorReporter errorReporter, int argc, char** argv) {
ReturnCodes result;
// Input/Output sources, plugin chain, and other required objects
SampleSource inputSource = NULL;
SampleSource outputSource = NULL;
AudioClock audioClock;
PluginChain pluginChain;
CharString pluginSearchRoot = newCharString();
boolByte shouldDisplayPluginInfo = false;
MidiSequence midiSequence = NULL;
MidiSource midiSource = NULL;
unsigned long maxTimeInMs = 0;
unsigned long maxTimeInFrames = 0;
unsigned long tailTimeInMs = 0;
unsigned long tailTimeInFrames = 0;
unsigned long processingDelayInFrames;
ProgramOptions programOptions;
ProgramOption option;
Plugin headPlugin;
SampleBuffer inputSampleBuffer = NULL;
SampleBuffer outputSampleBuffer = NULL;
TaskTimer initTimer, totalTimer, inputTimer, outputTimer = NULL;
LinkedList taskTimerList = NULL;
CharString totalTimeString = NULL;
boolByte finishedReading = false;
SampleSource silentSampleInput;
SampleSource silentSampleOutput;
unsigned int i;
initTimer = newTaskTimerWithCString(PROGRAM_NAME, "Initialization");
totalTimer = newTaskTimerWithCString(PROGRAM_NAME, "Total Time");
taskTimerStart(initTimer);
taskTimerStart(totalTimer);
initEventLogger();
initAudioSettings();
initAudioClock();
audioClock = getAudioClock();
initPluginChain();
pluginChain = getPluginChain();
programOptions = newMrsWatsonOptions();
inputSource = sampleSourceFactory(NULL);
if(!programOptionsParseArgs(programOptions, argc, argv)) {
printf("Run with '--help' to see possible options\n");
printf("Or run with '--help full' to see extended help for all options\n");
return RETURN_CODE_INVALID_ARGUMENT;
}
// These options conflict with standard processing (more or less), so check to see if the user wanted one
// of these and then exit right away.
if(argc == 1) {
printf("%s needs at least a plugin, input source, and output source to run.\n\n", PROGRAM_NAME);
printMrsWatsonQuickstart(argv[0]);
return RETURN_CODE_NOT_RUN;
}
else if(programOptions->options[OPTION_HELP]->enabled) {
printMrsWatsonQuickstart(argv[0]);
if(charStringIsEmpty(programOptionsGetString(programOptions, OPTION_HELP))) {
printf("All options, where <argument> is required and [argument] is optional:\n");
programOptionsPrintHelp(programOptions, false, DEFAULT_INDENT_SIZE);
}
else {
if(charStringIsEqualToCString(programOptionsGetString(programOptions, OPTION_HELP), "full", true)) {
programOptionsPrintHelp(programOptions, true, DEFAULT_INDENT_SIZE);
}
// Yeah this is a bit silly, but the performance obviously doesn't matter
// here and I don't feel like cluttering up this already huge function
// with more variables.
else if(programOptionsFind(programOptions, programOptionsGetString(programOptions, OPTION_HELP))) {
programOptionPrintHelp(programOptionsFind(programOptions, programOptionsGetString(programOptions, OPTION_HELP)),
true, DEFAULT_INDENT_SIZE, 0);
}
else {
printf("Invalid option '%s', try running --help full to see help for all options\n",
programOptionsGetString(programOptions, OPTION_HELP)->data);
}
}
return RETURN_CODE_NOT_RUN;
}
else if(programOptions->options[OPTION_VERSION]->enabled) {
printVersion();
return RETURN_CODE_NOT_RUN;
}
else if(programOptions->options[OPTION_COLOR_TEST]->enabled) {
printTestPattern();
return RETURN_CODE_NOT_RUN;
}
// See if we are to make an error report and make necessary changes to the
// options for good diagnostics. Note that error reports cannot be generated
// for any of the above options which return with RETURN_CODE_NOT_RUN.
else if(programOptions->options[OPTION_ERROR_REPORT]->enabled) {
errorReporterInitialize(errorReporter);
programOptions->options[OPTION_VERBOSE]->enabled = true;
programOptions->options[OPTION_LOG_FILE]->enabled = true;
programOptions->options[OPTION_DISPLAY_INFO]->enabled = true;
// Shell script with original command line arguments
errorReporterCreateLauncher(errorReporter, argc, argv);
// Rewrite some paths before any input or output sources have been opened.
_remapFileToErrorReport(errorReporter, programOptions->options[OPTION_INPUT_SOURCE], true);
_remapFileToErrorReport(errorReporter, programOptions->options[OPTION_OUTPUT_SOURCE], false);
_remapFileToErrorReport(errorReporter, programOptions->options[OPTION_MIDI_SOURCE], true);
_remapFileToErrorReport(errorReporter, programOptions->options[OPTION_LOG_FILE], false);
}
// Read in options from a configuration file, if given
if(programOptions->options[OPTION_CONFIG_FILE]->enabled) {
if(!programOptionsParseConfigFile(programOptions, programOptionsGetString(programOptions, OPTION_CONFIG_FILE))) {
return RETURN_CODE_INVALID_ARGUMENT;
}
}
// Parse these options first so that log messages displayed in the below
// loop are properly displayed
if(programOptions->options[OPTION_VERBOSE]->enabled) {
setLogLevel(LOG_DEBUG);
}
else if(programOptions->options[OPTION_QUIET]->enabled) {
setLogLevel(LOG_ERROR);
}
else if(programOptions->options[OPTION_LOG_LEVEL]->enabled) {
setLogLevelFromString(programOptionsGetString(programOptions, OPTION_LOG_LEVEL));
}
if(programOptions->options[OPTION_COLOR_LOGGING]->enabled) {
// If --color was given but with no string argument, then force color. Otherwise
// colors will be provided automatically anyways.
if(charStringIsEmpty(programOptionsGetString(programOptions, OPTION_COLOR_LOGGING))) {
programOptionsSetCString(programOptions, OPTION_COLOR_LOGGING, "force");
}
setLoggingColorEnabledWithString(programOptionsGetString(programOptions, OPTION_COLOR_LOGGING));
}
if(programOptions->options[OPTION_LOG_FILE]->enabled) {
setLogFile(programOptionsGetString(programOptions, OPTION_LOG_FILE));
}
// Parse other options and set up necessary objects
for(i = 0; i < programOptions->numOptions; i++) {
option = programOptions->options[i];
if(option->enabled) {
switch(option->index) {
case OPTION_BLOCKSIZE:
setBlocksize((const unsigned long)programOptionsGetNumber(programOptions, OPTION_BLOCKSIZE));
break;
case OPTION_CHANNELS:
setNumChannels((const unsigned long)programOptionsGetNumber(programOptions, OPTION_CHANNELS));
break;
case OPTION_DISPLAY_INFO:
shouldDisplayPluginInfo = true;
break;
case OPTION_INPUT_SOURCE:
freeSampleSource(inputSource);
inputSource = sampleSourceFactory(programOptionsGetString(programOptions, OPTION_INPUT_SOURCE));
break;
case OPTION_MAX_TIME:
maxTimeInMs = (const unsigned long)programOptionsGetNumber(programOptions, OPTION_MAX_TIME);
break;
case OPTION_MIDI_SOURCE:
midiSource = newMidiSource(guessMidiSourceType(programOptionsGetString(
programOptions, OPTION_MIDI_SOURCE)),
programOptionsGetString(programOptions, OPTION_MIDI_SOURCE));
break;
case OPTION_OUTPUT_SOURCE:
outputSource = sampleSourceFactory(programOptionsGetString(programOptions, OPTION_OUTPUT_SOURCE));
break;
case OPTION_PLUGIN_ROOT:
charStringCopy(pluginSearchRoot, programOptionsGetString(programOptions, OPTION_PLUGIN_ROOT));
break;
case OPTION_SAMPLE_RATE:
setSampleRate(programOptionsGetNumber(programOptions, OPTION_SAMPLE_RATE));
break;
case OPTION_TAIL_TIME:
tailTimeInMs = (long)programOptionsGetNumber(programOptions, OPTION_TAIL_TIME);
break;
case OPTION_TEMPO:
setTempo(programOptionsGetNumber(programOptions, OPTION_TEMPO));
break;
case OPTION_TIME_SIGNATURE:
if(!setTimeSignatureFromString(programOptionsGetString(programOptions, OPTION_TIME_SIGNATURE))) {
return RETURN_CODE_INVALID_ARGUMENT;
}
break;
case OPTION_ZEBRA_SIZE:
setLoggingZebraSize((int)programOptionsGetNumber(programOptions, OPTION_ZEBRA_SIZE));
break;
default:
// Ignore -- no special handling needs to be performed here
break;
}
}
}
if(programOptions->options[OPTION_LIST_PLUGINS]->enabled) {
listAvailablePlugins(pluginSearchRoot);
return RETURN_CODE_NOT_RUN;
}
if(programOptions->options[OPTION_LIST_FILE_TYPES]->enabled) {
sampleSourcePrintSupportedTypes();
return RETURN_CODE_NOT_RUN;
}
printWelcomeMessage(argc, argv);
if((result = setupInputSource(inputSource)) != RETURN_CODE_SUCCESS) {
logError("Input source could not be opened, exiting");
return result;
}
if((result = buildPluginChain(pluginChain, programOptionsGetString(programOptions, OPTION_PLUGIN),
pluginSearchRoot)) != RETURN_CODE_SUCCESS) {
logError("Plugin chain could not be constructed, exiting");
return result;
}
if(midiSource != NULL) {
result = setupMidiSource(midiSource, &midiSequence);
if(result != RETURN_CODE_SUCCESS) {
logError("MIDI source could not be opened, exiting");
return result;
}
}
// Copy plugins before they have been opened
if(programOptions->options[OPTION_ERROR_REPORT]->enabled) {
if(errorReporterShouldCopyPlugins()) {
if(!errorReporterCopyPlugins(errorReporter, pluginChain)) {
logWarn("Failed copying plugins to error report directory");
}
}
}
// Initialize the plugin chain after the global sample rate has been set
result = pluginChainInitialize(pluginChain);
if(result != RETURN_CODE_SUCCESS) {
logError("Could not initialize plugin chain");
return result;
}
// Display info for plugins in the chain before checking for valid input/output sources
if(shouldDisplayPluginInfo) {
pluginChainInspect(pluginChain);
}
// Execute any parameter changes
if(programOptions->options[OPTION_PARAMETER]->enabled) {
if(!pluginChainSetParameters(pluginChain, programOptionsGetList(programOptions, OPTION_PARAMETER))) {
return RETURN_CODE_INVALID_ARGUMENT;
}
}
// Setup output source here. Having an invalid output source should not cause the program
// to exit if the user only wants to list plugins or query info about a chain.
if((result = setupOutputSource(outputSource)) != RETURN_CODE_SUCCESS) {
logError("Output source could not be opened, exiting");
return result;
}
// Verify input/output sources. This must be done after the plugin chain is initialized
// otherwise the head plugin type is not known, which influences whether we must abort
// processing.
if(programOptions->options[OPTION_ERROR_REPORT]->enabled) {
if(charStringIsEqualToCString(inputSource->sourceName, "-", false) ||
charStringIsEqualToCString(outputSource->sourceName, "-", false)) {
printf("ERROR: Using stdin/stdout is incompatible with --error-report\n");
return RETURN_CODE_NOT_RUN;
}
if(midiSource != NULL && charStringIsEqualToCString(midiSource->sourceName, "-", false)) {
printf("ERROR: MIDI source from stdin is incompatible with --error-report\n");
return RETURN_CODE_NOT_RUN;
}
}
if(outputSource == NULL) {
logInternalError("Default output sample source was null");
return RETURN_CODE_INTERNAL_ERROR;
}
if(inputSource == NULL || inputSource->sampleSourceType == SAMPLE_SOURCE_TYPE_SILENCE) {
// If the first plugin in the chain is an instrument, use the silent source as our input and
// make sure that there is a corresponding MIDI file
headPlugin = pluginChain->plugins[0];
if(headPlugin->pluginType == PLUGIN_TYPE_INSTRUMENT) {
if(midiSource == NULL) {
// I guess some instruments (like white noise generators etc.) don't necessarily
// need MIDI, actually this is most useful for our internal plugins and generators.
// Anyways, this should only be a soft warning for those who know what they're doing.
logWarn("Plugin chain contains an instrument, but no MIDI source was supplied");
if(maxTimeInMs == 0) {
// However, if --max-time wasn't given, then there is effectively no input source
// and thus processing would continue forever. That won't work.
logError("No valid input source or maximum time, don't know when to stop processing");
return RETURN_CODE_MISSING_REQUIRED_OPTION;
}
else {
// If maximum time was given and there is no other input source, then use silence
inputSource = newSampleSourceSilence();
}
}
}
else {
logError("Plugin chain contains only effects, but no input source was supplied");
return RETURN_CODE_MISSING_REQUIRED_OPTION;
}
}
inputSampleBuffer = newSampleBuffer(getNumChannels(), getBlocksize());
inputTimer = newTaskTimerWithCString(PROGRAM_NAME, "Input Source");
outputSampleBuffer = newSampleBuffer(getNumChannels(), getBlocksize());
outputTimer = newTaskTimerWithCString(PROGRAM_NAME, "Output Source");
// Initialization is finished, we should be able to free this memory now
freeProgramOptions(programOptions);
// If a maximum time was given, figure it out here
if(maxTimeInMs > 0) {
maxTimeInFrames = (unsigned long)(maxTimeInMs * getSampleRate()) / 1000l;
}
processingDelayInFrames = pluginChainGetProcessingDelay(pluginChain);
// Get largest tail time requested by any plugin in the chain
tailTimeInMs += pluginChainGetMaximumTailTimeInMs(pluginChain);
tailTimeInFrames = (unsigned long)(tailTimeInMs * getSampleRate()) / 1000l + processingDelayInFrames;
pluginChainPrepareForProcessing(pluginChain);
// Update sample rate on the event logger
setLoggingZebraSize((long)getSampleRate());
logInfo("Starting processing input source");
logDebug("Sample rate: %.0f", getSampleRate());
logDebug("Blocksize: %d", getBlocksize());
logDebug("Channels: %d", getNumChannels());
logDebug("Tempo: %.2f", getTempo());
logDebug("Processing delay frames: %lu", processingDelayInFrames);
logDebug("Time signature: %d/%d", getTimeSignatureBeatsPerMeasure(), getTimeSignatureNoteValue());
taskTimerStop(initTimer);
silentSampleInput = sampleSourceFactory(NULL);
silentSampleOutput = sampleSourceFactory(NULL);
// Main processing loop
while(!finishedReading) {
taskTimerStart(inputTimer);
finishedReading = !readInput(inputSource, silentSampleInput, inputSampleBuffer, tailTimeInFrames);
// TODO: For streaming MIDI, we would need to read in events from source here
if(midiSequence != NULL) {
LinkedList midiEventsForBlock = newLinkedList();
// MIDI source overrides the value set to finishedReading by the input source
finishedReading = !fillMidiEventsFromRange(midiSequence, audioClock->currentFrame, getBlocksize(), midiEventsForBlock);
linkedListForeach(midiEventsForBlock, _processMidiMetaEvent, &finishedReading);
pluginChainProcessMidi(pluginChain, midiEventsForBlock);
freeLinkedList(midiEventsForBlock);
}
taskTimerStop(inputTimer);
if(maxTimeInFrames > 0 && audioClock->currentFrame >= maxTimeInFrames) {
logInfo("Maximum time reached, stopping processing after this block");
finishedReading = true;
}
pluginChainProcessAudio(pluginChain, inputSampleBuffer, outputSampleBuffer);
taskTimerStart(outputTimer);
if(finishedReading) {
outputSampleBuffer->blocksize = inputSampleBuffer->blocksize;//The input buffer size has been adjusted.
logDebug("Using buffer size of %d for final block", outputSampleBuffer->blocksize);
}
writeOutput(outputSource, silentSampleOutput, outputSampleBuffer, processingDelayInFrames);
taskTimerStop(outputTimer);
advanceAudioClock(audioClock, outputSampleBuffer->blocksize);
}
// Close file handles for input/output sources
silentSampleInput->closeSampleSource(silentSampleInput);
silentSampleOutput->closeSampleSource(silentSampleOutput);
inputSource->closeSampleSource(inputSource);
outputSource->closeSampleSource(outputSource);
// Print out statistics about each plugin's time usage
// TODO: On windows, the total processing time is stored in clocks and not milliseconds
// These values must be converted using the QueryPerformanceFrequency() function
audioClockStop(audioClock);
taskTimerStop(totalTimer);
if(totalTimer->totalTaskTime > 0) {
taskTimerList = newLinkedList();
linkedListAppend(taskTimerList, initTimer);
linkedListAppend(taskTimerList, inputTimer);
linkedListAppend(taskTimerList, outputTimer);
for(i = 0; i < pluginChain->numPlugins; i++) {
linkedListAppend(taskTimerList, pluginChain->audioTimers[i]);
linkedListAppend(taskTimerList, pluginChain->midiTimers[i]);
}
totalTimeString = taskTimerHumanReadbleString(totalTimer);
logInfo("Total processing time %s, approximate breakdown:", totalTimeString->data);
linkedListForeach(taskTimerList, _printTaskTime, totalTimer);
}
else {
// Woo-hoo!
logInfo("Total processing time <1ms. Either something went wrong, or your computer is smokin' fast!");
}
freeTaskTimer(initTimer);
freeTaskTimer(inputTimer);
freeTaskTimer(outputTimer);
freeTaskTimer(totalTimer);
freeLinkedList(taskTimerList);
freeCharString(totalTimeString);
if(midiSequence != NULL) {
logInfo("Read %ld MIDI events from %s",
midiSequence->numMidiEventsProcessed,
midiSource->sourceName->data);
}
else {
logInfo("Read %ld frames from %s",
inputSource->numSamplesProcessed / getNumChannels(),
inputSource->sourceName->data);
}
logInfo("Wrote %ld frames to %s",
outputSource->numSamplesProcessed / getNumChannels(),
outputSource->sourceName->data);
// Shut down and free data (will also close open files, plugins, etc)
logInfo("Shutting down");
freeSampleSource(inputSource);
freeSampleSource(outputSource);
freeSampleBuffer(inputSampleBuffer);
freeSampleBuffer(outputSampleBuffer);
pluginChainShutdown(pluginChain);
freePluginChain(pluginChain);
if(midiSource != NULL) {
freeMidiSource(midiSource);
}
if(midiSequence != NULL) {
freeMidiSequence(midiSequence);
}
freeAudioSettings();
logInfo("Goodbye!");
freeEventLogger();
freeAudioClock(getAudioClock());
if(errorReporter->started) {
errorReporterClose(errorReporter);
}
freeErrorReporter(errorReporter);
return RETURN_CODE_SUCCESS;
}
