/// <summary>
/// Enumerates Mediafoundation-Transforms that match the specified search criteria.
/// </summary>
/// <param name="category">A <see cref="Guid" /> that specifies the category of MFTs to enumerate.
/// For a list of MFT categories, see <see cref="MFTCategories" />.</param>
/// <param name="flags">The bitwise OR of zero or more flags from the <see cref="MFTEnumFlags" /> enumeration.</param>
/// <param name="inputType">Specifies an input media type to match. This parameter can be <c>null</c>. If <c>null</c>, all input types are matched.</param>
/// <param name="outputType">Specifies an output media type to match. This parameter can be <c>null</c>. If <c>null</c>, all output types are matched.</param>
/// <returns> A <see cref="T:System.Collections.Generic.IEnumerator`1" /> that can be used to iterate through the MFTs.</returns>
public static IEnumerable <Activate> EnumerateTransformsEx(Guid category, MFTEnumFlags flags, TRegisterTypeInformation?inputType, TRegisterTypeInformation?outputType)
{
if (!(Environment.OSVersion.Version.Major >= 6 && Environment.OSVersion.Version.Minor >= 1))
{
throw new PlatformNotSupportedException("The EnumerateTransformsEx method requires Windows 7/Windows Server 2008 R2 or above.");
}
IntPtr ptr;
int count;
MediaFactory.TEnumEx(category, (int)flags, inputType, outputType, out ptr, out count);
try
{
for (int i = 0; i < count; i++)
{
var ptr0 = ptr;
var ptr1 = Marshal.ReadIntPtr(new IntPtr(ptr0.ToInt64() + i * Marshal.SizeOf(ptr0)));
yield return(new Activate(ptr1));
}
}
finally
{
Marshal.FreeCoTaskMem(ptr);
}
}
/// <summary>
/// Enumerates Mediafoundation-Transforms that match the specified search criteria.
/// </summary>
/// <param name="category">A <see cref="Guid" /> that specifies the category of MFTs to enumerate.
/// For a list of MFT categories, see <see cref="MFTCategories" />.</param>
/// <param name="flags">The bitwise OR of zero or more flags from the <see cref="MFTEnumFlags" /> enumeration.</param>
/// <param name="inputType">Specifies an input media type to match. This parameter can be <c>null</c>. If <c>null</c>, all input types are matched.</param>
/// <param name="outputType">Specifies an output media type to match. This parameter can be <c>null</c>. If <c>null</c>, all output types are matched.</param>
/// <returns> A <see cref="T:System.Collections.Generic.IEnumerator`1" /> that can be used to iterate through the MFTs.</returns>
public static IEnumerable <MFActivate> EnumerateTransformsEx(Guid category, MFTEnumFlags flags, MFTRegisterTypeInfo inputType = null, MFTRegisterTypeInfo outputType = null)
{
if (!(Environment.OSVersion.Version.Major >= 6 && Environment.OSVersion.Version.Minor >= 1))
{
throw new PlatformNotSupportedException("The EnumerateTransformsEx method requires Windows 7/Windows Server 2008 R2 or above.");
}
IntPtr ptr;
int count;
int res = NativeMethods.MFTEnumEx(category, flags, inputType, outputType, out ptr, out count);
try
{
MediaFoundationException.Try(res, "Interops", "MFTEnumEx");
for (int i = 0; i < count; i++)
{
var ptr0 = ptr;
var ptr1 = Marshal.ReadIntPtr(new IntPtr(ptr0.ToInt64() + i * Marshal.SizeOf(ptr0)));
yield return(new MFActivate(ptr1));
}
}
finally
{
Marshal.FreeCoTaskMem(ptr);
}
}
public const int MF_SOURCE_READER_MEDIASOURCE = unchecked ((int)0xFFFFFFFF); //pass this to mfattributes streamindex arguments
/// <summary>
/// </summary>
/// <param name="category">See CSCore.MediaFoundation.MFTCategories</param>
public static IEnumerable <MFActivate> EnumerateTransforms(Guid category, MFTEnumFlags flags)
{
IntPtr ptr;
int count;
int res = MFInterops.MFTEnumEx(category, flags, null, null, out ptr, out count);
MediaFoundationException.Try(res, "Interops", "MFTEnumEx");
for (int i = 0; i < count; i++)
{
var ptr0 = ptr;
var ptr1 = Marshal.ReadIntPtr(new IntPtr(ptr0.ToInt64() + i * Marshal.SizeOf(ptr0)));
yield return(new MFActivate(ptr1));
}
Marshal.FreeCoTaskMem(ptr);
}
/// <summary>
/// Enumerates Mediafoundation-Transforms that match the specified search criteria.
/// </summary>
/// <param name="category">A <see cref="Guid" /> that specifies the category of MFTs to enumerate.
/// For a list of MFT categories, see <see cref="MFTCategories" />.</param>
/// <param name="flags">The bitwise OR of zero or more flags from the <see cref="MFTEnumFlags" /> enumeration.</param>
/// <param name="inputType">Specifies an input media type to match. This parameter can be <c>null</c>. If <c>null</c>, all input types are matched.</param>
/// <param name="outputType">Specifies an output media type to match. This parameter can be <c>null</c>. If <c>null</c>, all output types are matched.</param>
/// <returns> A <see cref="T:System.Collections.Generic.IEnumerator`1" /> that can be used to iterate through the MFTs.</returns>
public static IEnumerable<MFActivate> EnumerateTransformsEx(Guid category, MFTEnumFlags flags, MFTRegisterTypeInfo inputType = null, MFTRegisterTypeInfo outputType = null)
{
if(!(Environment.OSVersion.Version.Major >= 6 && Environment.OSVersion.Version.Minor >= 1))
throw new PlatformNotSupportedException("The EnumerateTransformsEx method requires Windows 7/Windows Server 2008 R2 or above.");
IntPtr ptr;
int count;
int res = NativeMethods.MFTEnumEx(category, flags, inputType, outputType, out ptr, out count);
try
{
MediaFoundationException.Try(res, "Interops", "MFTEnumEx");
for (int i = 0; i < count; i++)
{
var ptr0 = ptr;
var ptr1 = Marshal.ReadIntPtr(new IntPtr(ptr0.ToInt64() + i * Marshal.SizeOf(ptr0)));
yield return new MFActivate(ptr1);
}
}
finally
{
Marshal.FreeCoTaskMem(ptr);
}
}
public static extern int MFTranscodeGetAudioOutputAvailableTypes(
[In, MarshalAs(UnmanagedType.LPStruct)] Guid guidSubType,
[In] MFTEnumFlags dwMFTFlags,
[In] IntPtr pCodecConfig /*IMFAttributes*/,
[Out, MarshalAs(UnmanagedType.Interface)] out IMFCollection ppAvailableTypes);
public static extern int MFTEnumEx([In] Guid category, [In] MFTEnumFlags enumflags,
[In] MFTRegisterTypeInfo inputtype, [In] MFTRegisterTypeInfo outputType,
[Out] out IntPtr pppMftActivate, [Out] out int mftCount);
/// <summary>
/// </summary>
/// <param name="category">See CSCore.MediaFoundation.MFTCategories</param>
public static IEnumerable<MFActivate> EnumerateTransforms(Guid category, MFTEnumFlags flags)
{
IntPtr ptr;
int count;
int res = MFInterops.MFTEnumEx(category, flags, null, null, out ptr, out count);
MediaFoundationException.Try(res, "Interops", "MFTEnumEx");
for (int i = 0; i < count; i++)
{
var ptr0 = ptr;
var ptr1 = Marshal.ReadIntPtr(new IntPtr(ptr0.ToInt64() + i * Marshal.SizeOf(ptr0)));
yield return new MFActivate(ptr1);
}
Marshal.FreeCoTaskMem(ptr);
}
