private void initFromBuffer(byte[] buffer) {
if (!MidiUtil.bytesEqual(buffer, IDENTIFIER, 0, 4)) {
System.out.println("File identifier not MThd. Exiting");
mType = 0;
mTrackCount = 0;
mResolution = DEFAULT_RESOLUTION;
return;
}
mType = MidiUtil.bytesToInt(buffer, 8, 2);
mTrackCount = MidiUtil.bytesToInt(buffer, 10, 2);
mResolution = MidiUtil.bytesToInt(buffer, 12, 2);
}
public void writeToFile(File outFile) throws FileNotFoundException, IOException {
FileOutputStream fout = new FileOutputStream(outFile);
fout.write(IDENTIFIER);
fout.write(MidiUtil.intToBytes(6, 4));
fout.write(MidiUtil.intToBytes(mType, 2));
fout.write(MidiUtil.intToBytes(mTrackCount, 2));
fout.write(MidiUtil.intToBytes(mResolution, 2));
for (MidiTrack T : mTracks) {
T.writeToFile(fout);
}
fout.flush();
fout.close();
}