public string GetParamString(Out123.Params aParam)
{
long null_value = 0; // not interested in int value because want the string value.
double null_fvalue = 0; // not interested in double value because want the string value.
IntPtr strPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref null_value, ref null_fvalue, strPtr);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
IntPtr subPtr = Marshal.ReadIntPtr(strPtr);
if (subPtr == IntPtr.Zero)
{
Marshal.FreeHGlobal(strPtr);
throw new Out123.ErrorException("unknow error");
}
else
{
string result = Marshal.PtrToStringAnsi(subPtr);
Marshal.FreeHGlobal(strPtr);
return(result);
}
}
public void Open(string driver = null, string device = null)
{
IntPtr driverPtr = IntPtr.Zero;
IntPtr devicePtr = IntPtr.Zero;
if (driver != null)
{
driverPtr = Marshal.StringToHGlobalAnsi(driver);
}
if (device != null)
{
devicePtr = Marshal.StringToHGlobalAnsi(device);
}
Out123.Errors error = Out123NativeMethods.Open(handle, driverPtr, devicePtr);
if (driverPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(driverPtr);
}
if (devicePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(devicePtr);
}
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(this);
}
}
public IEnumerable <Out123.Driver> Drivers()
{
IntPtr namesPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr descsPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.Drivers(handle, namesPtr, descsPtr);
if (error != Out123.Errors.OK)
{
Marshal.FreeHGlobal(namesPtr);
Marshal.FreeHGlobal(descsPtr);
throw new Out123.ErrorException(this);
}
IntPtr namesPtrDeref = Marshal.ReadIntPtr(namesPtr);
IntPtr descsPtrDeref = Marshal.ReadIntPtr(descsPtr);
int offset = 0;
while (true)
{
IntPtr namePtr = Marshal.ReadIntPtr(namesPtrDeref, offset);
IntPtr descPtr = Marshal.ReadIntPtr(descsPtrDeref, offset);
if (namePtr == IntPtr.Zero)
{
yield break;
}
String name = Marshal.PtrToStringAnsi(namePtr);
String desc = Marshal.PtrToStringAnsi(descPtr);
Out123.Driver driver = new Out123.Driver(name, desc);
yield return(driver);
offset += Marshal.SizeOf <IntPtr>();
}
}
public string LastErrorString()
{
IntPtr errorPtr = Out123NativeMethods.StrError(handle);
Console.WriteLine("2: " + handle.ToInt64());
return(Marshal.PtrToStringAnsi(errorPtr));
}
public void SetParamInt(Out123.Params aParam, long value)
{
Out123.Errors error = Out123NativeMethods.Param(handle, aParam, new IntPtr(value), 0, IntPtr.Zero);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
}
public void SetParamFloat(Out123.Params aParam, double value)
{
Out123.Errors error = Out123NativeMethods.Param(handle, aParam, IntPtr.Zero, value, IntPtr.Zero);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
}
public void CopyParamFrom(Out123 other)
{
Out123.Errors error = Out123NativeMethods.ParamFrom(handle, other.handle);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
}
public void Start(long rate, int channels, int encoding)
{
Out123.Errors error = Out123NativeMethods.Start(handle, new IntPtr(rate), channels, encoding);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(this);
}
}
public void SetBufferSize(ulong bufferSize)
{
Out123.Errors error = Out123NativeMethods.SetBuffer(handle, new UIntPtr(bufferSize));
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
}
public int EncodingsFor(long rate, int channels)
{
int result = Out123NativeMethods.Encodings(handle, new IntPtr(rate), channels);
if (result == -1)
{
throw new Out123.ErrorException(this);
}
return(result);
}
public Out123(string pluginFolder = "./plugins")
{
System.Environment.SetEnvironmentVariable("MPG123_MODDIR", pluginFolder);
handle = Out123NativeMethods.New();
if (handle == IntPtr.Zero)
{
System.Environment.SetEnvironmentVariable("MPG123_BINDIR", ""); //remove env variable
throw new Out123.ErrorException("Unable to initialize lib Out123");
}
}
public ulong Play(byte[] buffer)
{
IntPtr bufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf <byte>() * buffer.Length);
Marshal.Copy(buffer, 0, bufferPtr, buffer.Length);
UIntPtr size = Out123NativeMethods.Play(handle, bufferPtr, new UIntPtr((ulong)buffer.Length));
Marshal.FreeHGlobal(bufferPtr);
return(size.ToUInt64());
}
public void Drain(ulong nummberOfBytesToDrain = 0)
{
if (nummberOfBytesToDrain == 0)
{
Out123NativeMethods.Drain(handle);
}
else
{
Out123NativeMethods.NDrain(handle, new UIntPtr(nummberOfBytesToDrain));
}
}
public static string PlainStrError(Errors error)
{
IntPtr errorPtr = Out123NativeMethods.PlainStrError(error);
if (errorPtr == IntPtr.Zero)
{
return("unknown error");
}
string errorMessage = Marshal.PtrToStringAnsi(errorPtr);
return(errorMessage);
}
public double GetParamFloat(Out123.Params aParam)
{
long null_value = 0; // not interested in int value because want the doule value.
double result = 0;
IntPtr null_sValue = IntPtr.Zero; // not interested in sValue because want the doule value.
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref null_value, ref result, null_sValue);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(this);
}
return(result);
}
public long GetParamInt(Out123.Params aParam)
{
long result = 0;
double null_fValue = 0; // not interested in float value because want the int value.
IntPtr null_sValue = IntPtr.Zero;
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref result, ref null_fValue, null_sValue);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
return(result);
}
public void SetParamString(Out123.Params aParam, string value)
{
IntPtr sValuePtr = IntPtr.Zero;
if (sValuePtr != null)
{
sValuePtr = Marshal.StringToHGlobalAnsi(value);
}
Out123.Errors result = Out123NativeMethods.Param(handle, aParam, IntPtr.Zero, 0, sValuePtr);
if (sValuePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(sValuePtr);
}
}
protected void Dispose(bool isDisposingManually)
{
if (isDisposed)
{
return;
}
if (handle != IntPtr.Zero)
{
Out123NativeMethods.Del(handle);
handle = IntPtr.Zero;
}
if (isDisposingManually)
{
// cleanup dependancies
}
isDisposed = true;
}
public Out123.DriverInfo GetDriverInfo()
{
IntPtr driverPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr devicePtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.DriverInfo(handle, driverPtr, devicePtr);
if (error != Out123.Errors.OK)
{
Marshal.FreeHGlobal(driverPtr);
Marshal.FreeHGlobal(devicePtr);
throw new Out123.ErrorException(error);
}
IntPtr driver = Marshal.ReadIntPtr(driverPtr);
IntPtr device = Marshal.ReadIntPtr(devicePtr);
Out123.DriverInfo result = new Out123.DriverInfo(Marshal.PtrToStringAnsi(driver), Marshal.PtrToStringAnsi(device));
Marshal.FreeHGlobal(driverPtr);
Marshal.FreeHGlobal(devicePtr);
return(result);
}
public void DriverInfo()
{
IntPtr driverPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr devicePtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.DriverInfo(handle, driverPtr, devicePtr);
Console.WriteLine(error);
Console.WriteLine(LastErrorCode());
Console.WriteLine(LastErrorString());
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
/*
* IntPtr driver = Marshal.ReadIntPtr(driverPtr);
* IntPtr device = Marshal.ReadIntPtr(devicePtr);
*
* Console.WriteLine(driver.ToString());
* Console.WriteLine(device.ToString());
*/
}
public Out123.Format GetFormat()
{
IntPtr rate = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr channels = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr encoding = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
IntPtr framesize = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.GetFormat(handle, rate, channels, encoding, framesize);
if (error != Out123.Errors.OK)
{
Marshal.FreeHGlobal(rate);
Marshal.FreeHGlobal(channels);
Marshal.FreeHGlobal(encoding);
Marshal.FreeHGlobal(framesize);
throw new Out123.ErrorException(this);
}
Out123.Format result = new Out123.Format(rate.ToInt64(), channels.ToInt32(), encoding.ToInt32(), framesize.ToInt32());
Marshal.FreeHGlobal(rate);
Marshal.FreeHGlobal(channels);
Marshal.FreeHGlobal(encoding);
Marshal.FreeHGlobal(framesize);
return(result);
}
public string LastErrorString()
{
IntPtr errorPtr = Out123NativeMethods.StrError(handle);
return(Marshal.PtrToStringAnsi(errorPtr));
}
public void Close()
{
Out123NativeMethods.Close(handle);
}
public void Pause()
{
Out123NativeMethods.Pause(handle);
}
public int EncodingSize(int encoding)
{
return(Out123NativeMethods.Encsize(encoding));
}
public Out123.Errors LastErrorCode()
{
return(Out123NativeMethods.ErrCode(handle));
}
public ulong Buffered()
{
return(Out123NativeMethods.Buffered(handle).ToUInt64());
}
public void Continue()
{
Out123NativeMethods.Continue(handle);
}
public void Stop()
{
Out123NativeMethods.Stop(handle);
}
public void Drop()
{
Out123NativeMethods.Drop(handle);
}
