unsafe static T[] GetAvailable <T> (AudioFormatProperty prop, AudioFormatType format)
{
uint size;
if (AudioFormatPropertyNative.AudioFormatGetPropertyInfo(prop, sizeof(AudioFormatType), ref format, out size) != 0)
{
return(null);
}
var data = new T[size / Marshal.SizeOf(typeof(T))];
var array_handle = GCHandle.Alloc(data, GCHandleType.Pinned);
try {
var ptr = array_handle.AddrOfPinnedObject();
var res = AudioFormatPropertyNative.AudioFormatGetProperty(prop, sizeof(AudioFormatType), ref format, ref size, ptr);
if (res != 0)
{
return(null);
}
Array.Resize(ref data, (int)size / Marshal.SizeOf(typeof(T)));
return(data);
} finally {
array_handle.Free();
}
}
unsafe static T[]? GetAvailable <T> (AudioFormatProperty prop, AudioFormatType format)
{
uint size;
if (AudioFormatPropertyNative.AudioFormatGetPropertyInfo(prop, sizeof(AudioFormatType), ref format, out size) != 0)
{
return(null);
}
var data = new T[size / Marshal.SizeOf(typeof(T))];
var array_handle = GCHandle.Alloc(data, GCHandleType.Pinned); // This requires a pinned GCHandle, since it's not possible to use unsafe code to get the address of a generic object.
try {
var ptr = array_handle.AddrOfPinnedObject();
var res = AudioFormatPropertyNative.AudioFormatGetProperty(prop, sizeof(AudioFormatType), ref format, ref size, ptr);
if (res != 0)
{
return(null);
}
Array.Resize(ref data, (int)size / Marshal.SizeOf(typeof(T)));
return(data);
} finally {
array_handle.Free();
}
}
unsafe static AudioFormatType[] GetFormats(AudioFormatProperty prop)
{
int size;
if (AudioFormatPropertyNative.AudioFormatGetPropertyInfo(prop, 0, IntPtr.Zero, out size) != 0)
{
return(null);
}
var elementSize = sizeof(AudioFormatType);
var data = new AudioFormatType[size / elementSize];
fixed(AudioFormatType *ptr = data)
{
var res = AudioFormatPropertyNative.AudioFormatGetProperty(prop, 0, IntPtr.Zero, ref size, (IntPtr)ptr);
if (res != 0)
{
return(null);
}
Array.Resize(ref data, elementSize);
return(data);
}
}
static AudioChannelLayout GetChannelLayout(AudioFormatProperty property, int value)
{
int size;
AudioFormatPropertyNative.AudioFormatGetPropertyInfo (property, sizeof (AudioFormatProperty), ref value, out size);
AudioChannelLayout layout;
IntPtr ptr = Marshal.AllocHGlobal (size);
if (AudioFormatPropertyNative.AudioFormatGetProperty (property, sizeof (AudioFormatProperty), ref value, ref size, ptr) == 0)
layout = new AudioChannelLayout (ptr);
else
layout = null;
Marshal.FreeHGlobal (ptr);
return layout;
}
unsafe static T[] GetAvailable <T> (AudioFormatProperty prop, AudioFormatType format) where T : struct
{
uint size;
if (AudioFormatPropertyNative.AudioFormatGetPropertyInfo(prop, sizeof(AudioFormatType), ref format, out size) != 0)
{
return(null);
}
var data = new T[size / sizeof(T)];
fixed(T *ptr = data)
{
var res = AudioFormatPropertyNative.AudioFormatGetProperty(prop, sizeof(AudioFormatType), ref format, ref size, (IntPtr)ptr);
if (res != 0)
{
return(null);
}
Array.Resize(ref data, (int)size / sizeof(T));
return(data);
}
}
public static unsafe extern AudioFormatError AudioFormatGetProperty(AudioFormatProperty inPropertyID, int inSpecifierSize, AudioFormat* inSpecifier, ref int ioPropertyDataSize, out uint outPropertyData);
public static extern AudioFormatError AudioFormatGetProperty(AudioFormatProperty inPropertyID, int inSpecifierSize, IntPtr inSpecifier, ref int ioPropertyDataSize, ref AudioStreamBasicDescription outPropertyData);
public static unsafe extern AudioFormatError AudioFormatGetProperty(AudioFormatProperty propertyID, int inSpecifierSize, IntPtr inSpecifier, ref int ioDataSize, float* outPropertyData);
public static unsafe extern AudioFormatError AudioFormatGetProperty(AudioFormatProperty propertyID, int inSpecifierSize, ref AudioStreamBasicDescription inSpecifier, ref uint ioDataSize, int* outPropertyData);
public static unsafe extern AudioFormatError AudioFormatGetProperty(AudioFormatProperty propertyID, int inSpecifierSize, ref AudioFormatInfo inSpecifier, ref uint ioDataSize, AudioFormat* outPropertyData);
static AudioChannelLayout GetChannelLayout(AudioFormatProperty property, int value)
{
int size;
AudioFormatPropertyNative.AudioFormatGetPropertyInfo (property, sizeof (AudioFormatProperty), ref value, out size);
AudioChannelLayout layout;
IntPtr ptr = Marshal.AllocHGlobal (size);
if (AudioFormatPropertyNative.AudioFormatGetProperty (property, sizeof (AudioFormatProperty), ref value, ref size, ptr) == 0)
layout = new AudioChannelLayout (ptr);
else
layout = null;
Marshal.FreeHGlobal (ptr);
return layout;
}
public unsafe extern static AudioFormatError AudioFormatGetProperty (AudioFormatProperty propertyID, int inSpecifierSize, ref AudioFormatType inSpecifier, ref uint ioDataSize, IntPtr outPropertyData);
public unsafe extern static AudioFormatError AudioFormatGetProperty (AudioFormatProperty propertyID, int inSpecifierSize, ref int inSpecifier, ref int ioDataSize, int* outPropertyData);
public static extern AudioFormatError AudioFormatGetPropertyInfo(AudioFormatProperty propertyID, int inSpecifierSize, ref AudioStreamBasicDescription inSpecifier, out uint outPropertyDataSize);
public unsafe extern static AudioFormatError AudioFormatGetProperty(AudioFormatProperty inPropertyID, int inSpecifierSize, AudioClassDescription *inSpecifier, ref int ioPropertyDataSize,
out uint outPropertyData);
public static extern AudioFormatError AudioFormatGetPropertyInfo(AudioFormatProperty propertyID, int inSpecifierSize, IntPtr inSpecifier, out int outPropertyDataSize);
public extern static AudioFormatError AudioFormatGetPropertyInfo (AudioFormatProperty propertyID, int inSpecifierSize, ref AudioFormatInfo inSpecifier, out uint outPropertyDataSize);
