public int SetMediaType(AMMediaType pMediaType)
{
if (m_pUnknown == IntPtr.Zero) return E_NOINTERFACE;
SetMediaTypeProc _Proc = GetProcDelegate<SetMediaTypeProc>(14);
if (_Proc == null) return E_UNEXPECTED;
return (HRESULT)_Proc(
m_pUnknown,
pMediaType
);
}
public static bool AreEquals(AMMediaType _src, AMMediaType _dst)
{
if ((_dst.majorType != _src.majorType))
{
return false;
}
if (_src.subType != _dst.subType)
{
return false;
}
if (_src.formatType != _dst.formatType)
{
return false;
}
if (_src.formatSize != _dst.formatSize)
{
return false;
}
if (_src.formatSize > 0)
{
byte[] _source = new byte[_src.formatSize];
byte[] _dest = new byte[_src.formatSize];
Marshal.Copy(_src.formatPtr, _source, 0, _source.Length);
Marshal.Copy(_dst.formatPtr, _dest, 0, _dest.Length);
for (int i = 0; i < _source.Length; i++)
{
if (_dest[i] != _source[i]) return false;
}
}
return true;
}
public int GetMediaType(out AMMediaType ppMediaType)
{
ppMediaType = null;
if (m_pUnknown == IntPtr.Zero) return E_NOINTERFACE;
GetMediaTypeProc _Proc = GetProcDelegate<GetMediaTypeProc>(13);
if (_Proc == null) return E_UNEXPECTED;
return (HRESULT)_Proc(
m_pUnknown,
out ppMediaType
);
}
public void Set(AMMediaType mt)
{
Free();
majorType = mt.majorType;
subType = mt.subType;
fixedSizeSamples = mt.fixedSizeSamples;
temporalCompression = mt.temporalCompression;
sampleSize = mt.sampleSize;
formatType = mt.formatType;
unkPtr = mt.unkPtr;
formatPtr = IntPtr.Zero;
formatSize = mt.formatSize;
if (unkPtr != IntPtr.Zero)
{
Marshal.AddRef(unkPtr);
}
if (formatSize > 0)
{
SetFormat(mt.formatPtr, formatSize);
}
}
public static bool IsValid(AMMediaType mt)
{
return (mt.majorType != null && mt.majorType != Guid.Empty);
}
public int QueryAccept(AMMediaType pmt)
{
if (m_pUnknown == IntPtr.Zero) return E_NOINTERFACE;
QueryAcceptProc _Proc = GetProcDelegate<QueryAcceptProc>(11);
if (_Proc == null) return E_UNEXPECTED;
return (HRESULT)_Proc(
m_pUnknown,
pmt
);
}
public int GetCurFile(out string pszFileName, AMMediaType pmt)
{
pszFileName = m_sFileName;
if (pmt != null)
{
pmt.Set(Pins[0].CurrentMediaType);
}
return NOERROR;
}
public static void AllocFormat(ref AMMediaType mt, int nSize)
{
FreeFormat(ref mt);
if (mt != null && nSize > 0)
{
mt.formatPtr = Marshal.AllocCoTaskMem(nSize);
mt.formatSize = nSize;
}
}
public static void SetFormat(ref AMMediaType mt, IntPtr pFormat, int nSize)
{
AllocFormat(ref mt, nSize);
if (mt != null && pFormat != IntPtr.Zero)
{
COMHelper.API.CopyMemory(mt.formatPtr, pFormat, mt.formatSize);
}
}
public static void Copy(AMMediaType mt, ref AMMediaType _dest)
{
if (((object)_dest) == null)
{
_dest = new AMMediaType();
}
else
{
Free(ref _dest);
}
_dest.majorType = mt.majorType;
_dest.subType = mt.subType;
_dest.fixedSizeSamples = mt.fixedSizeSamples;
_dest.temporalCompression = mt.temporalCompression;
_dest.sampleSize = mt.sampleSize;
_dest.formatType = mt.formatType;
_dest.unkPtr = mt.unkPtr;
_dest.formatPtr = IntPtr.Zero;
_dest.formatSize = mt.formatSize;
if (_dest.unkPtr != IntPtr.Zero)
{
Marshal.AddRef(_dest.unkPtr);
}
if (_dest.formatSize > 0)
{
_dest.formatPtr = Marshal.AllocCoTaskMem(_dest.formatSize);
COMHelper.API.CopyMemory(_dest.formatPtr, mt.formatPtr, _dest.formatSize);
}
}
public static void Free(ref AMMediaType mt)
{
if (mt != null)
{
FreeFormat(ref mt);
if (mt.unkPtr != IntPtr.Zero)
{
Marshal.Release(mt.unkPtr);
mt.unkPtr = IntPtr.Zero;
}
}
}
public static void Init(ref AMMediaType mt)
{
if (((object)mt) == null)
{
mt = new AMMediaType();
}
else
{
Free(ref mt);
}
mt.majorType = Guid.Empty;
mt.subType = Guid.Empty;
mt.fixedSizeSamples = true;
mt.temporalCompression = false;
mt.sampleSize = 0;
mt.formatType = Guid.Empty;
mt.unkPtr = IntPtr.Zero;
mt.formatPtr = IntPtr.Zero;
mt.formatSize = 0;
}
public static bool IsPartiallySpecified(AMMediaType mt)
{
if ((mt.majorType == Guid.Empty) || (mt.formatType == Guid.Empty))
{
return true;
}
else
{
return false;
}
}
public bool MatchesPartial(AMMediaType _dst)
{
if ((_dst.majorType != Guid.Empty) && (majorType != _dst.majorType))
{
return false;
}
if ((_dst.subType != Guid.Empty) && (subType != _dst.subType))
{
return false;
}
if (_dst.formatType != Guid.Empty)
{
if (formatType != _dst.formatType)
{
return false;
}
if (formatSize != _dst.formatSize)
{
return false;
}
if (formatSize > 0)
{
byte[] _source = new byte[formatSize];
byte[] _dest = new byte[formatSize];
Marshal.Copy(formatPtr, _source, 0, _source.Length);
Marshal.Copy(_dst.formatPtr, _dest, 0, _dest.Length);
for (int i = 0; i < _source.Length; i++)
{
if (_dest[i] != _source[i]) return false;
}
}
}
return true;
}
public int ReceiveConnection(IntPtr pReceivePin, AMMediaType pmt)
{
if (m_pUnknown == IntPtr.Zero) return E_NOINTERFACE;
ReceiveConnectionProc _Proc = GetProcDelegate<ReceiveConnectionProc>(4);
if (_Proc == null) return E_UNEXPECTED;
return (HRESULT)_Proc(
m_pUnknown,
pReceivePin, pmt
);
}
public static void SetFormat(ref AMMediaType mt, ref WaveFormatEx wfx)
{
if (wfx != null)
{
int cb = Marshal.SizeOf(wfx);
IntPtr _ptr = Marshal.AllocCoTaskMem(cb);
try
{
Marshal.StructureToPtr(wfx, _ptr, true);
SetFormat(ref mt, _ptr, cb);
if (mt != null)
{
mt.formatType = FormatType.WaveEx;
}
}
finally
{
Marshal.FreeCoTaskMem(_ptr);
}
}
}
public int ConnectionMediaType(AMMediaType pmt)
{
if (m_pUnknown == IntPtr.Zero) return E_NOINTERFACE;
ConnectionMediaTypeProc _Proc = GetProcDelegate<ConnectionMediaTypeProc>(7);
if (_Proc == null) return E_UNEXPECTED;
return (HRESULT)_Proc(
m_pUnknown,
pmt
);
}
public static void SetFormat(ref AMMediaType mt, ref VideoInfoHeader vih)
{
if (vih != null)
{
int cb = Marshal.SizeOf(vih);
IntPtr _ptr = Marshal.AllocCoTaskMem(cb);
try
{
Marshal.StructureToPtr(vih, _ptr, true);
SetFormat(ref mt, _ptr, cb);
if (mt != null)
{
mt.formatType = FormatType.VideoInfo;
}
}
finally
{
Marshal.FreeCoTaskMem(_ptr);
}
}
}
public int SetFileName(string pszFileName, AMMediaType pmt)
{
if (string.IsNullOrEmpty(pszFileName)) return E_POINTER;
if (IsActive) return VFW_E_WRONG_STATE;
m_sFileName = pszFileName;
return NOERROR;
}
public static void FreeFormat(ref AMMediaType mt)
{
if (mt != null)
{
if (mt.formatPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(mt.formatPtr);
mt.formatPtr = IntPtr.Zero;
}
mt.formatSize = 0;
}
}
public override int CheckMediaType(AMMediaType pmt)
{
return NOERROR;
}
public AMMediaType(AMMediaType mt)
: this()
{
Set(mt);
}
