const char* carla_get_library_folder()
{
carla_debug("carla_get_library_folder()");
static CarlaString ret;
if (ret.isEmpty())
{
using juce::File;
ret = File(File::getSpecialLocation(File::currentExecutableFile).getParentDirectory()).getFullPathName().toRawUTF8();
}
return ret;
}
virtual void menuItemSelected(int menuItemID, int)
{
if (menuItemID == 200)
{
WildcardFileFilter wildcardFilter("*.mid", String::empty, "Midi files");
FileBrowserComponent browser(FileBrowserComponent::canSelectFiles | FileBrowserComponent::openMode,
lastOpenedFile.exists() ? lastOpenedFile : File(String("C:\\Users\\GeorgeKrueger\\Documents")), &wildcardFilter, nullptr);
FileChooserDialogBox dialogBox("Open a midi file",
"Please choose a midi file to open...",
browser,
false,
Colours::lightgrey);
if (dialogBox.show())
{
File selectedFile = browser.getSelectedFile(0);
lastOpenedFile = selectedFile;
FileInputStream fileStream(selectedFile);
juce::MidiFile midiFile;
midiFile.readFrom(fileStream);
int numTracks = midiFile.getNumTracks();
midiFile.convertTimestampTicksToSeconds();
String msg;
msg << "Opened midi file: " << selectedFile.getFileName() << " Tracks: " << numTracks << "\n";
log(msg);
for (int i = 0; i < numTracks; ++i)
{
const MidiMessageSequence* msgSeq = midiFile.getTrack(i);
OwnedArray<PluginDescription> results;
String plugFile = "C:\\VST\\FMMF.dll";
VSTPluginFormat vstFormat;
vstFormat.findAllTypesForFile(results, plugFile);
if (results.size() > 0) {
msg.clear();
msg << "Found " << results.size() << " plugin(s) matching file " << plugFile << "\n";
log(msg);
int secsToRender = 10;
double sampleRate = 44100;
int totalSizeInSamples = static_cast<int>(44100 * secsToRender);
AudioPluginInstance* plugInst = vstFormat.createInstanceFromDescription(*results[0], sampleRate, totalSizeInSamples);
if (!plugInst) {
msg.clear();
msg << "Failed to load plugin " << plugFile << "\n";
log(msg);
continue;
}
int numInputChannels = plugInst->getTotalNumInputChannels();
int numOutputChannels = plugInst->getTotalNumOutputChannels();
msg.clear();
msg << "Plugin input channels: " << numInputChannels << " output channels: " << numOutputChannels
<< " Current program: " << plugInst->getCurrentProgram() << "\n";
log(msg);
int maxChannels = std::max(numInputChannels, numOutputChannels);
AudioBuffer<float> buffer(maxChannels, totalSizeInSamples);
MidiBuffer midiMessages;
for (int j = 0; j < msgSeq->getNumEvents(); ++j)
{
MidiMessageSequence::MidiEventHolder* midiEventHolder = msgSeq->getEventPointer(j);
MidiMessage midiMsg = midiEventHolder->message;
int samplePos = static_cast<int>(midiMsg.getTimeStamp() * sampleRate);
midiMessages.addEvent(midiMsg, samplePos);
}
plugInst->prepareToPlay(sampleRate, totalSizeInSamples);
plugInst->processBlock(buffer, midiMessages);
/*File txtOutFile("C:\\Users\\GeorgeKrueger\\Documents\\GitHub\\soundserver2\\out.txt");
FileOutputStream* txtOutStream = txtOutFile.createOutputStream();
for (int j = 0; j < 44100; ++j)
{
float sample = buffer.getSample(0, j);
txtOutStream->writeFloat(sample);
txtOutStream->writeText(" ", true, false);
}*/
File outputFile("C:\\Users\\GeorgeKrueger\\Documents\\GitHub\\soundserver2\\out.wav");
if (outputFile.exists()) {
outputFile.deleteFile();
}
FileOutputStream* fileOutputStream = outputFile.createOutputStream();
WavAudioFormat wavFormat;
StringPairArray metadataValues;
juce::AudioFormatWriter* wavFormatWriter = wavFormat.createWriterFor(
fileOutputStream, sampleRate, 2, 16, metadataValues, 0);
bool writeAudioDataRet = wavFormatWriter->writeFromAudioSampleBuffer(buffer, 0, buffer.getNumSamples());
wavFormatWriter->flush();
msg.clear();
msg << "Done writing to output file " << outputFile.getFileName() << " . Write return value: "
<< (int)writeAudioDataRet << "\n";
log(msg);
delete wavFormatWriter;
delete plugInst;
}
else {
msg.clear();
msg << "Could not find plugin from file " << plugFile << "\n";
log(msg);
}
}
}
}
}