public static readonly SoundPcmFormat IEC958_SUBFRAME; // IEC-958 CPU Endian
static SoundPcmFormats()
{
if (BitConverter.IsLittleEndian)
{
S16 = SoundPcmFormat.S16_LE;
U16 = SoundPcmFormat.U16_LE;
S24 = SoundPcmFormat.S24_LE;
U24 = SoundPcmFormat.U24_LE;
S32 = SoundPcmFormat.S32_LE;
U32 = SoundPcmFormat.U32_LE;
FLOAT = SoundPcmFormat.FLOAT_LE;
FLOAT64 = SoundPcmFormat.FLOAT64_LE;
IEC958_SUBFRAME = SoundPcmFormat.IEC958_SUBFRAME_LE;
}
else
{
S16 = SoundPcmFormat.S16_BE;
U16 = SoundPcmFormat.U16_BE;
S24 = SoundPcmFormat.S24_BE;
U24 = SoundPcmFormat.U24_BE;
S32 = SoundPcmFormat.S32_BE;
U32 = SoundPcmFormat.U32_BE;
FLOAT = SoundPcmFormat.FLOAT_BE;
FLOAT64 = SoundPcmFormat.FLOAT64_BE;
IEC958_SUBFRAME = SoundPcmFormat.IEC958_SUBFRAME_BE;
}
}
public static int GetPhysicalWidth(this SoundPcmFormat format)
{
int ret = SoundNativeMethods.SoundPcmFormatPhysicalWidth(format);
if (ret < 0)
{
throw new InvalidOperationException(
string.Format("Cannot retrieve physical width for {0}, {1}", format, ret));
}
return(ret);
}
public static bool IsCpuEndian(this SoundPcmFormat format)
{
int ret = SoundNativeMethods.SoundPcmFormatCpuEndian(format);
if (ret < 0)
{
throw new InvalidOperationException(
string.Format("{0} format is endianess independent: {1}", format, ret));
}
return(ret == 1);
}
public static bool IsUnsigned(this SoundPcmFormat format)
{
int ret = SoundNativeMethods.SoundPcmFormatUnsigned(format);
if (ret < 0)
{
throw new InvalidOperationException(
string.Format("{0} is not a linear format: {1}", format, ret));
}
return(ret == 1);
}
public static string GetDescription(this SoundPcmFormat format)
{
IntPtr ptr = SoundNativeMethods.SoundPcmFormatDescription(format);
return(Marshal.PtrToStringAnsi(ptr));
}
public static int SetSilence(this SoundPcmFormat format, IntPtr buf, uint samples)
{
return(SoundNativeMethods.SoundPcmFormatSetSilence(format, buf, samples));
}
public static ulong GetSilence64(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatSilence64(format));
}
public static uint GetSilence32(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatSilence32(format));
}
public static ushort GetSilence16(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatSilence16(format));
}
public static byte GetSilence(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatSilence(format));
}
public static uint GetSize(this SoundPcmFormat format, uint samples)
{
return(SoundNativeMethods.SoundPcmFormatSize(format, samples));
}
public static bool IsFloat(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatFloat(format) == 1);
}
public static bool IsLinear(this SoundPcmFormat format)
{
return(SoundNativeMethods.SoundPcmFormatLinear(format) == 1);
}
/// <summary>
/// Tests the presence of an access type in a <see cref="SoundPcmFormatMask"/> instance.
/// </summary>
/// <returns>Value indicating </returns>
public bool IsSet(SoundPcmFormat val)
{
return(SoundNativeMethods.SoundPcmFormatMaskTest(handle, val) == 0);
}
/// <summary>
/// Makes an access type missing from a <see cref="SoundPcmFormatMask"/> instance.
/// </summary>
/// <param name="val">Access to unset.</param>
public void Unset(SoundPcmFormat val)
{
SoundNativeMethods.SoundPcmFormatMaskSet(handle, val);
}
