KeyFinderResultWrapper keyDetectionProcess(const AsyncFileObject& object) {
KeyFinderResultWrapper result;
result.batchRow = object.batchRow;
AudioFileDecoder* decoder = NULL;
try {
decoder = new AudioFileDecoder(object.filePath, object.prefs.getMaxDuration());
} catch (std::exception& e) {
delete decoder;
result.errorMessage = QString(e.what());
return result;
} catch (...) {
delete decoder;
result.errorMessage = "Unknown exception initialising decoder";
return result;
}
KeyFinder::Workspace workspace;
static KeyFinder::KeyFinder kf;
try {
while (true) {
KeyFinder::AudioData* tempAudio = decoder->decodeNextAudioPacket();
if (tempAudio == NULL) break;
kf.progressiveChromagram(*tempAudio, workspace);
delete tempAudio;
}
delete decoder;
decoder = NULL;
kf.finalChromagram(workspace);
result.fullChromagram = KeyFinder::Chromagram(*workspace.chromagram);
result.core = kf.keyOfChromagram(workspace);
} catch (std::exception& e) {
if (decoder != NULL) delete decoder;
result.errorMessage = QString(e.what());
return result;
} catch (...) {
if (decoder != NULL) {
delete decoder;
result.errorMessage = "Unknown exception while decoding";
} else {
result.errorMessage = "Unknown exception while analysing";
}
return result;
}
return result;
}
KeyFinderResultWrapper keyDetectionProcess(const AsyncFileObject& object) {
KeyFinderResultWrapper result;
result.batchRow = object.batchRow;
AudioFileDecoder* decoder = NULL;
try {
decoder = new AudioFileDecoder(object.filePath, object.prefs.getMaxDuration());
} catch (std::exception& e) {
delete decoder;
result.errorMessage = QString(e.what());
return result;
} catch (...) {
delete decoder;
result.errorMessage = "Unknown exception initialising decoder";
return result;
}
KeyFinder::Workspace workspace;
static KeyFinder::KeyFinder kf;
try {
while (true) {
KeyFinder::AudioData* tempAudio = decoder->decodeNextAudioPacket();
if (tempAudio == NULL) break;
kf.progressiveChromagram(*tempAudio, workspace, object.prefs.core);
delete tempAudio;
}
delete decoder;
decoder = NULL;
kf.finalChromagram(workspace, object.prefs.core);
result.fullChromagram = KeyFinder::Chromagram(*workspace.chromagram);
result.core = kf.keyOfChromagram(workspace, object.prefs.core);
result.oneOctaveChromagram = result.fullChromagram;
result.oneOctaveChromagram.reduceToOneOctave();
} catch (std::exception& e) {
if (decoder != NULL) delete decoder;
result.errorMessage = QString(e.what());
return result;
} catch (...) {
if (decoder != NULL) {
delete decoder;
result.errorMessage = "Unknown exception while decoding";
} else {
result.errorMessage = "Unknown exception while analysing";
}
return result;
}
for (unsigned int i = 0; i < result.core.segments.size(); i++) {
qDebug(
"Chroma vector for segment %d of file %s: [%.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f, %.0f]",
i, object.filePath.toUtf8().constData(),
result.core.segments[i].chromaVector[0], result.core.segments[i].chromaVector[1],
result.core.segments[i].chromaVector[2], result.core.segments[i].chromaVector[3],
result.core.segments[i].chromaVector[4], result.core.segments[i].chromaVector[5],
result.core.segments[i].chromaVector[6], result.core.segments[i].chromaVector[7],
result.core.segments[i].chromaVector[8], result.core.segments[i].chromaVector[9],
result.core.segments[i].chromaVector[10], result.core.segments[i].chromaVector[11]
);
}
return result;
}