/// <summary>
/// Konvertieren von von Sound Dateien zu WAVE mit PCM Header
/// </summary>
/// <param name="src">Kompletter Pfad zur Quell Datei</param>
/// <param name="dest">Kompletter Pfad zur Ziel Datei</param>
/// <returns></returns>
public bool ConvertToWAVE(string src_file, string dest_file, ConvertToWaveProgressDelegate convertToWaveProgressDelegate)
{
uint version = 0;
FMOD.RESULT result;
const int CHUNKSIZE = 262144;
FMOD.System system = null;
FMOD.Sound sound = null;
/*
* Global Settings
*/
result = FMOD.Factory.System_Create(ref system);
if (result != FMOD.RESULT.OK)
{
return(false);
}
result = system.getVersion(ref version);
ERRCHECK(result);
if (version < FMOD.VERSION.number)
{
//MessageBox.Show("Error! You are using an old version of FMOD " + version.ToString("X") + ". This program requires " + FMOD.VERSION.number.ToString("X") + ".");
return(false);
}
result = system.init(1, FMOD.INITFLAGS.NORMAL, (IntPtr)null);
ERRCHECK(result);
result = system.createSound(src_file, FMOD.MODE.OPENONLY | FMOD.MODE.ACCURATETIME, ref sound);
if (result != FMOD.RESULT.OK)
{
return(false);
}
/*
* Decode the sound and write it to a .raw file.
*/
IntPtr data = Marshal.AllocHGlobal(CHUNKSIZE);
byte[] buffer = new byte[CHUNKSIZE];
uint length = 0, read = 0;
uint bytesread = 0;
FileStream fs = new FileStream(dest_file, FileMode.Create, FileAccess.Write);
result = sound.getLength(ref length, FMOD.TIMEUNIT.PCMBYTES);
ERRCHECK(result);
bytesread = 0;
do
{
result = sound.readData(data, CHUNKSIZE, ref read);
Marshal.Copy(data, buffer, 0, CHUNKSIZE);
fs.Write(buffer, 0, (int)read);
bytesread += read;
double percent = 100.0 / (double)length * (double)bytesread;
convertToWaveProgressDelegate(src_file, dest_file, percent);
System.Windows.Forms.Application.DoEvents();
//statusBar.Text = "writing " + bytesread + " bytes of " + length + " to output.raw";
}while (result == FMOD.RESULT.OK && read == CHUNKSIZE);
//statusBar.Text = "done";
/*
* Loop terminates when either
* 1. the read function returns an error. (ie FMOD_ERR_FILE_EOF etc).
* 2. the amount requested was different to the amount returned. (somehow got an EOF without the file error, maybe a non stream file format like mod/s3m/xm/it/midi).
*
* If 'bytesread' is bigger than 'length' then it just means that FMOD miscalculated the size,
* but this will not usually happen if FMOD_ACCURATETIME is used. (this will give the correct length for VBR formats)
*/
fs.Close();
/*
* Shut down
*/
if (sound != null)
{
result = sound.release();
ERRCHECK(result);
}
if (system != null)
{
result = system.close();
ERRCHECK(result);
result = system.release();
ERRCHECK(result);
}
return(true);
}
private void playButton_Click(object sender, System.EventArgs e)
{
uint version = 0;
FMOD.RESULT result;
/*
* Global Settings
*/
result = FMOD.Factory.System_Create(ref system);
ERRCHECK(result);
result = system.getVersion(ref version);
ERRCHECK(result);
if (version < FMOD.VERSION.number)
{
MessageBox.Show("Error! You are using an old version of FMOD " + version.ToString("X") + ". This program requires " + FMOD.VERSION.number.ToString("X") + ".");
Application.Exit();
}
result = system.init(1, FMOD.INITFLAGS.NORMAL, (IntPtr)null);
ERRCHECK(result);
result = system.createSound("../../../../../examples/media/wave.mp3", FMOD.MODE.OPENONLY | FMOD.MODE.ACCURATETIME, ref sound);
ERRCHECK(result);
/*
* Decode the sound and write it to a .raw file.
*/
{
IntPtr data = Marshal.AllocHGlobal(CHUNKSIZE);
byte[] buffer = new byte[CHUNKSIZE];
uint length = 0, read = 0;
uint bytesread = 0;
FileStream fs = new FileStream("output.raw", FileMode.Create, FileAccess.Write);
result = sound.getLength(ref length, FMOD.TIMEUNIT.PCMBYTES);
ERRCHECK(result);
bytesread = 0;
do
{
result = sound.readData(data, CHUNKSIZE, ref read);
Marshal.Copy(data, buffer, 0, CHUNKSIZE);
fs.Write(buffer, 0, (int)read);
bytesread += read;
statusBar.Text = "writing " + bytesread + " bytes of " + length + " to output.raw";
}while(result == FMOD.RESULT.OK && read == CHUNKSIZE);
statusBar.Text = "done";
/*
* Loop terminates when either
* 1. the read function returns an error. (ie FMOD_ERR_FILE_EOF etc).
* 2. the amount requested was different to the amount returned. (somehow got an EOF without the file error, maybe a non stream file format like mod/s3m/xm/it/midi).
*
* If 'bytesread' is bigger than 'length' then it just means that FMOD miscalculated the size,
* but this will not usually happen if FMOD_ACCURATETIME is used. (this will give the correct length for VBR formats)
*/
fs.Close();
/*
* Shut down
*/
if (sound != null)
{
result = sound.release();
ERRCHECK(result);
}
if (system != null)
{
result = system.close();
ERRCHECK(result);
result = system.release();
ERRCHECK(result);
}
}
}
private float BPMDetection(string filename)
{
float bpm = 0.0f;
const int CHUNKSIZE = 4096;
FMOD.RESULT result;
FMOD.System systemBpm = null;
FMOD.Sound soundBpm = null;
// Create a System object and initialize.
result = FMOD.Factory.System_Create(ref systemBpm);
ERRCHECK(result);
// Zuerst in eine WAVE-Umwandeln
result = systemBpm.init(1, FMOD.INITFLAGS.NORMAL, (IntPtr)null);
ERRCHECK(result);
result = systemBpm.createSound(filename, FMOD.MODE.OPENONLY | FMOD.MODE.ACCURATETIME, ref soundBpm);
ERRCHECK(result);
/*
* Decode the sound and write it to a .raw file.
*/
{
IntPtr data = Marshal.AllocHGlobal(CHUNKSIZE);
byte[] buffer = new byte[CHUNKSIZE];
uint length = 0, read = 0;
uint bytesread = 0;
MemoryStream memStream = new MemoryStream();
result = soundBpm.getLength(ref length, FMOD.TIMEUNIT.PCMBYTES);
ERRCHECK(result);
bytesread = 0;
do
{
result = soundBpm.readData(data, CHUNKSIZE, ref read);
Marshal.Copy(data, buffer, 0, CHUNKSIZE);
memStream.Write(buffer, 0, (int)read);
bytesread += read;
}while (result == FMOD.RESULT.OK && read == CHUNKSIZE);
/*
* Loop terminates when either
* 1. the read function returns an error. (ie FMOD_ERR_FILE_EOF etc).
* 2. the amount requested was different to the amount returned. (somehow got an EOF without the file error, maybe a non stream file format like mod/s3m/xm/it/midi).
*
* If 'bytesread' is bigger than 'length' then it just means that FMOD miscalculated the size,
* but this will not usually happen if FMOD_ACCURATETIME is used. (this will give the correct length for VBR formats)
*/
memStream.Close();
// In float umwandeln
byte[] samples = memStream.ToArray();
float[] floatSamples = new float[samples.Length / 2];
//for (int i = 0; i < samples.Length; i += 4)
for (int i = samples.Length / 4; i < samples.Length * 3 / 4; i += 4)
{
short sampleLeft = BitConverter.ToInt16(samples, i);
short sampleRight = BitConverter.ToInt16(samples, i + 2);
floatSamples[i / 2] = (float)sampleLeft / 32768.0f;
floatSamples[i / 2 + 1] = (float)sampleRight / 32768.0f;
}
BigMansStuff.PracticeSharp.Core.SoundTouchSharp soundTouch = new BigMansStuff.PracticeSharp.Core.SoundTouchSharp();
bpm = soundTouch.DetectBPM(2, 44100, floatSamples, floatSamples.Length);
/*
* Shut down
*/
if (soundBpm != null)
{
result = soundBpm.release();
ERRCHECK(result);
}
if (systemBpm != null)
{
result = systemBpm.close();
ERRCHECK(result);
result = systemBpm.release();
ERRCHECK(result);
}
}
return(bpm);
}
