private void SetupHeader(NativeAcmHeader header)
{
header.outputBufferLength = _destinationBufferSize;
header.inputBufferLength = _sourceBufferSize;
header.outputBufferPointer = _destinationBufferPtr.AddrOfPinnedObject();
header.inputBufferPointer = _sourceBufferPtr.AddrOfPinnedObject();
}
public AcmHeader(IntPtr acmStreamHandle, WaveFormat sourceFormat, int sourceBufferSize, int destinationBufferSize)
{
if (acmStreamHandle == IntPtr.Zero)
{
throw new ArgumentNullException("acmStreamHandle");
}
if (sourceFormat == null)
{
throw new ArgumentNullException("sourceForamt");
}
if (sourceBufferSize <= 0)
{
throw new ArgumentOutOfRangeException("sourceBufferSize");
}
if (destinationBufferSize <= 0)
{
throw new ArgumentOutOfRangeException("destinationBufferSize");
}
_handle = acmStreamHandle;
_sourceBufferSize = sourceBufferSize;
_destinationBufferSize = destinationBufferSize;
_sourceFormat = sourceFormat;
_sourceBuffer = new byte[sourceBufferSize];
_destinationBuffer = new byte[destinationBufferSize];
_sourceBufferPtr = GCHandle.Alloc(_sourceBuffer, GCHandleType.Pinned);
_destinationBufferPtr = GCHandle.Alloc(_destinationBuffer, GCHandleType.Pinned);
_header = new NativeAcmHeader();
}
public static extern MmResult acmStreamConvert(
IntPtr acmStreamHandle,
[In, Out] NativeAcmHeader header,
AcmConvertFlags flags);
public static extern MmResult acmStreamUnprepareHeader(
IntPtr acmStreamHandle,
[In, Out] NativeAcmHeader header,
int reserved = 0);
