public void Open()
{
if (this.opened)
{
throw new InvalidOperationException();
}
if (this.inputFormat == null)
{
throw new InvalidOperationException("Input format is not specified.");
}
if (this.outputFormat == null)
{
throw new InvalidOperationException("Output format is not specified.");
}
this.pwfxSource = this.inputFormat.ToPtr();
this.pwfxDest = this.outputFormat.ToPtr();
this.outputFormat = new SoundFormat(this.pwfxDest);
int mmr = AcmInterop.acmStreamOpen(out this.pStream, IntPtr.Zero, this.pwfxSource, this.pwfxDest,
IntPtr.Zero, IntPtr.Zero, UIntPtr.Zero, 0);
if (mmr != 0)
{
throw new SoundException("acmStreamOpen", mmr);
}
int cbSrcLength = (int)((this.bufferLength / 1000.0) * this.inputFormat.AverageBytesPerSecond);
this.header = new AcmInterop.ACMSTREAMHEADER();
this.header.cbStruct = Marshal.SizeOf(this.header);
this.header.cbSrcLength = cbSrcLength;
int suggestedDstLength;
mmr = AcmInterop.acmStreamSize(this.pStream, cbSrcLength, out suggestedDstLength,
AcmInterop.ACM_STREAMSIZEF_SOURCE);
try {
this.header.cbDstLength = suggestedDstLength;
this.header.pbDst = Marshal.AllocHGlobal(suggestedDstLength);
this.header.pbSrc = Marshal.AllocHGlobal(cbSrcLength);
this.headerGCHandle = GCHandle.Alloc(this.header, GCHandleType.Pinned);
mmr = AcmInterop.acmStreamPrepareHeader(this.pStream, ref this.header, 0);
if (mmr != 0)
{
throw new SoundException("acmStreamPrepareHeader", mmr);
}
this.isStart = true;
this.opened = true;
}
finally {
if (!this.opened)
{
this.Close();
}
}
}
public void Open()
{
if (this.opened) {
throw new InvalidOperationException();
}
if (this.inputFormat == null) {
throw new InvalidOperationException("Input format is not specified.");
}
if (this.outputFormat == null) {
throw new InvalidOperationException("Output format is not specified.");
}
this.pwfxSource = this.inputFormat.ToPtr();
this.pwfxDest = this.outputFormat.ToPtr();
this.outputFormat = new SoundFormat(this.pwfxDest);
int mmr = AcmInterop.acmStreamOpen(out this.pStream, IntPtr.Zero, this.pwfxSource, this.pwfxDest,
IntPtr.Zero, IntPtr.Zero, UIntPtr.Zero, 0);
if (mmr != 0) {
throw new SoundException("acmStreamOpen", mmr);
}
int cbSrcLength = (int)((this.bufferLength / 1000.0) * this.inputFormat.AverageBytesPerSecond);
this.header = new AcmInterop.ACMSTREAMHEADER();
this.header.cbStruct = Marshal.SizeOf(this.header);
this.header.cbSrcLength = cbSrcLength;
int suggestedDstLength;
mmr = AcmInterop.acmStreamSize(this.pStream, cbSrcLength, out suggestedDstLength,
AcmInterop.ACM_STREAMSIZEF_SOURCE);
try {
this.header.cbDstLength = suggestedDstLength;
this.header.pbDst = Marshal.AllocHGlobal(suggestedDstLength);
this.header.pbSrc = Marshal.AllocHGlobal(cbSrcLength);
this.headerGCHandle = GCHandle.Alloc(this.header, GCHandleType.Pinned);
mmr = AcmInterop.acmStreamPrepareHeader(this.pStream, ref this.header, 0);
if (mmr != 0) {
throw new SoundException("acmStreamPrepareHeader", mmr);
}
this.isStart = true;
this.opened = true;
}
finally {
if (!this.opened) {
this.Close();
}
}
}
