///////////////////////////////////////////////////////////////////////////////
// Small helping Methods //
///////////////////////////////////////////////////////////////////////////////
#region HELPER
/// <summary>
/// Returns the <see cref="Guid"/> for the given filter of
/// given category.
/// </summary>
/// <param name="filterName">Name of the filter to search.</param>
/// <param name="category">Category of filter to search.</param>
/// <returns>The <see cref="Guid"/> for the given filter of
/// given category.</returns>
private Guid FindGuid(string filterName, Guid category)
{
int hr;
IEnumDMO enumDMO;
Guid[] g2 = new Guid[1];
string[] sn = new string[1];
hr = DMOUtils.DMOEnum(category, 0, 0, null, 0, null, out enumDMO);
DMOError.ThrowExceptionForHR(hr);
try
{
do
{
hr = enumDMO.Next(1, g2, sn, IntPtr.Zero);
}while (hr == 0 && sn[0] != filterName);
// Handle any serious errors
DMOError.ThrowExceptionForHR(hr);
if (hr != 0)
{
throw new Exception("Cannot find " + filterName);
}
}
finally
{
Marshal.ReleaseComObject(enumDMO);
}
return(g2[0]);
}
/// <summary>
/// Finds the <see cref="Guid"/> for the given
/// category and object
/// </summary>
/// <param name="gn">
/// A string containing the name of the DMO.
/// </param>
/// <param name="cat">
/// A <see cref="Guid"/> with the dmo category.
/// </param>
/// <returns>
/// The <see cref="Guid"/> of the found DMO.
/// </returns>
private Guid FindGuid(string gn, Guid cat)
{
int hr;
IEnumDMO dmoEnum;
var g2 = new Guid[1];
var sn = new string[1];
hr = DMOUtils.DMOEnum(cat, 0, 0, null, 0, null, out dmoEnum);
DMOError.ThrowExceptionForHR(hr);
try
{
do
{
hr = dmoEnum.Next(1, g2, sn, IntPtr.Zero);
}while (hr == 0 && sn[0] != gn);
// Handle any serious errors
DMOError.ThrowExceptionForHR(hr);
if (hr != 0)
{
throw new Exception("Cannot find " + gn);
}
}
finally
{
Marshal.ReleaseComObject(dmoEnum);
}
return(g2[0]);
}
private void Configure()
{
int hr;
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.None, 0, null, 0, null, out m_idmo);
DsError.ThrowExceptionForHR(hr);
}
private void TestRegister()
{
int hr;
IEnumDMO idmo;
Guid g = Guid.NewGuid();
Guid g2 = Guid.NewGuid();
Debug.WriteLine(g);
Debug.WriteLine(g2);
DMOPartialMediatype [] pIn = new DMOPartialMediatype[2];
pIn[0] = new DMOPartialMediatype();
pIn[0].type = g2;
pIn[0].subtype = MediaSubType.RGB24;
pIn[1] = new DMOPartialMediatype();
pIn[1].type = g2;
pIn[1].subtype = MediaSubType.RGB32;
DMOPartialMediatype [] pOut = new DMOPartialMediatype[2];
pOut[0] = new DMOPartialMediatype();
pOut[0].type = g2;
pOut[0].subtype = MediaSubType.RGB24;
pOut[1] = new DMOPartialMediatype();
pOut[1].type = g2;
pOut[1].subtype = MediaSubType.RGB32;
hr = DMOUtils.DMORegister("asdffdsa", g, DMOCategory.VideoEffect, DMORegisterFlags.None,
pIn.Length,
pIn,
pOut.Length,
pOut
);
Debug.Assert(hr == 0, "DMORegister");
DMOPartialMediatype [] tIn = new DMOPartialMediatype[1];
tIn[0].type = g2;
tIn[0].subtype = MediaSubType.RGB32;
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.IncludeKeyed, tIn.Length, tIn, 0, null, out idmo);
DMOError.ThrowExceptionForHR(hr);
int iCnt1 = CountEm(idmo);
Debug.Assert(iCnt1 == 1, "DMORegister");
hr = DMOUtils.DMOUnregister(g, DMOCategory.VideoEffect);
DMOError.ThrowExceptionForHR(hr);
int iCnt2 = CountEm(idmo);
Debug.Assert(iCnt2 == 0, "DMOUnregister");
}
private void junk()
{
int hr;
IEnumDMO idmo;
Guid [] g = new Guid[1];
string [] sn = new string[1];
int iCount = 0;
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.None, 0, null, 0, null, out idmo);
DMOError.ThrowExceptionForHR(hr);
do
{
DMOWrapperFilter dmoFilter = new DMOWrapperFilter();
IDMOWrapperFilter dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
hr = idmo.Next(1, g, sn, IntPtr.Zero);
DMOError.ThrowExceptionForHR(hr);
if (hr > 0)
{
break;
}
hr = dmoWrapperFilter.Init(g[0], Guid.Empty);
if (hr >= 0)
{
m_impi = dmoWrapperFilter as IMediaParamInfo;
if (m_impi != null)
{
hr = m_impi.GetParamCount(out iCount);
}
else
{
iCount = 0;
}
if (iCount > 0)
{
Debug.WriteLine(string.Format("{0} {1} {2}", sn[0], iCount, g[0]));
}
}
} while (iCount >= 0);
}
private Guid FindDMOGuid(string gn, Guid cat)
{
int hr;
IEnumDMO pEnum;
Guid[] g2 = new Guid[1];
string[] sn = new String[1];
hr = DMOUtils.DMOEnum(cat, 0, 0, null, 0, null, out pEnum);
DMOError.ThrowExceptionForHR(hr);
IntPtr fetched = Marshal.AllocCoTaskMem(4);
try
{
do
{
hr = pEnum.Next(1, g2, sn, fetched);
} while (hr == 0 && sn[0] != gn);
// Handle any serious errors
DMOError.ThrowExceptionForHR(hr);
if (hr != 0)
{
Console.WriteLine("Cannot find " + gn);
return(Guid.Empty);
}
}
finally
{
Marshal.ReleaseComObject(pEnum);
Marshal.FreeCoTaskMem(fetched);
}
return(g2[0]);
}
private void TestDmoEnum()
{
int hr;
IEnumDMO idmo;
DMOPartialMediatype [] tIn = new DMOPartialMediatype[2];
tIn[0].type = MediaType.Audio;
tIn[0].subtype = Guid.Empty;
tIn[1].type = MediaType.Video;
tIn[1].subtype = Guid.Empty;
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.IncludeKeyed, 2, tIn, 0, tIn, out idmo);
DMOError.ThrowExceptionForHR(hr);
int iCnt1 = CountEm(idmo);
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.IncludeKeyed, 0, null, 0, null, out idmo);
DMOError.ThrowExceptionForHR(hr);
int iCnt2 = CountEm(idmo);
Debug.Assert(iCnt1 == iCnt2, "Hopefully all DMOs are Video or Audio");
// Looking for the MS Screen Encoder MSS1
tIn[0].type = MediaType.Video;
tIn[0].subtype = new Guid(0x3153534D, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71);
tIn[0].subtype = new Guid("D990EE14-776C-4723-BE46-3DA2F56F10B9");
hr = DMOUtils.DMOEnum(DMOCategory.VideoEncoder, DMOEnumerator.IncludeKeyed, 0, null, 1, tIn, out idmo);
DMOError.ThrowExceptionForHR(hr);
int iCnt3 = CountEm(idmo);
Debug.Assert(iCnt3 == 1, "Test Category, and output partial media types");
}