void ZelloPTTLib.IAudioStream.WriteSamples(object vData)
{
byte[] arr;
try
{
System.Runtime.InteropServices.ComTypes.IStream comStream = vData as System.Runtime.InteropServices.ComTypes.IStream;
if (comStream != null)
{
System.Runtime.InteropServices.ComTypes.STATSTG stg;
comStream.Stat(out stg, 1 /*STATFLAG_NONAME*/);
long lSize = stg.cbSize;
sampleCount += Convert.ToInt32(lSize / 2);
arr = new byte[lSize];
IntPtr pInt = (IntPtr)0;
comStream.Read(arr, Convert.ToInt32(lSize), pInt);
foreach (IAudioStreamSink sink in lstSinks)
{
sink.onAudioData(arr);
}
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(comStream);
comStream = null;
}
}
catch (System.Exception _ex)
{
System.Diagnostics.Debug.WriteLine("Exception in AudioStreamImpl.WriteSamples : " + _ex.Message);
}
}
void readStream(System.Runtime.InteropServices.ComTypes.IStream ppstm, MemoryStream dest)
{
int size = 0;
System.Runtime.InteropServices.ComTypes.STATSTG statstgstream;
ppstm.Stat(out statstgstream, 1);
size = (int)statstgstream.cbSize;
IntPtr pm = new IntPtr();
byte[] buffer = new byte[1024];
int page = 1024;
while (size > 0)
{
if (size < page)
{
page = size;
}
ppstm.Read(buffer, page, pm);
dest.Write(buffer, 0, page);
size -= page;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ComStreamWrapper"/> class.
/// </summary>
/// <param name="istream">The istream to wrap.</param>
/// <param name="isStreamOwner">If set to <c>true</c>, this instance should be the owner of the wrapped stream and thus is responsible for disposing it.</param>
/// <exception cref="System.ArgumentNullException">istream is null.</exception>
public ComStreamWrapper(System.Runtime.InteropServices.ComTypes.IStream istream, bool isStreamOwner)
{
_istream = istream ?? throw new ArgumentNullException(nameof(istream));
_isStreamOwner = isStreamOwner;
_int64Ptr = Marshal.AllocCoTaskMem(8);
_int32Ptr = Marshal.AllocCoTaskMem(4);
_streamStatus = new System.Runtime.InteropServices.ComTypes.STATSTG();
_istream.Stat(out _streamStatus, STATFLAG.NONAME);
}
private void button1_Click(object sender, EventArgs e)
{
if (istream != null)
{
System.Runtime.InteropServices.ComTypes.IStream i = (System.Runtime.InteropServices.ComTypes.IStream)istream.Stream;
System.Runtime.InteropServices.ComTypes.STATSTG st;
i.Stat(out st, 0);
byte[] buffer = new byte[st.cbSize];
IntPtr ptr = Marshal.AllocHGlobal(sizeof(int));
i.Read(buffer, (int)st.cbSize, ptr);
OnTestEvent("Size=" + st.cbSize.ToString() + "; read:" + Marshal.ReadIntPtr(ptr).ToString() + " bytes, starting:" + buffer[0].ToString("X"));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ComStreamWrapper"/> class.
/// </summary>
/// <param name="istream">The istream to wrap.</param>
/// <param name="isStreamOwner">If set to <c>true</c>, this instance should be the owner of the wrapped stream and thus is responsible for disposing it.</param>
/// <exception cref="System.ArgumentNullException">istream is null.</exception>
public ComStreamWrapper(System.Runtime.InteropServices.ComTypes.IStream istream, bool isStreamOwner)
{
if (null == istream)
throw new ArgumentNullException("istream");
_isStreamOwner = isStreamOwner;
_istream = istream;
_int64Ptr = Marshal.AllocCoTaskMem(8);
_int32Ptr = Marshal.AllocCoTaskMem(4);
_streamStatus = new System.Runtime.InteropServices.ComTypes.STATSTG();
_istream.Stat(out _streamStatus, STATFLAG.NONAME);
}
