/// <summary>
/// Retrieves the maximum latency on a specified input stream.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <returns>The maximum latency in reference type units. Unit = REFERENCE_TIME = 100 nanoseconds</returns>
public long GetInputMaxLatency(int inputStreamIndex)
{
long l0;
DmoException.Try(GetInputMaxLatencyNative(inputStreamIndex, out l0), n, "GetInputMaxLatency");
return(l0);
}
/// <summary>
/// Enumerates DMOs listed in the registry. The caller can search by category, media type, or both.
/// </summary>
/// <param name="category">
/// GUID that specifies which category of DMO to search. Use Guid.Empty to search every category.
/// See <see cref="DmoEnumeratorCategories" /> for a list of category guids.
/// </param>
/// <param name="flags">Flags that specify search criteria.</param>
/// <param name="inputTypes">Array of input-Mediatypes.</param>
/// <param name="outputTypes">Array of output-Mediatypes.</param>
/// <returns>EnumDMO</returns>
public static EnumDmo EnumerateDMOs(Guid category, DmoEnumFlags flags, DmoPartialMediaType[] inputTypes,
DmoPartialMediaType[] outputTypes)
{
IntPtr ptr;
int numberOfInputTypes = 0;
int numberOfOutputTypes = 0;
if (inputTypes != null)
{
numberOfInputTypes = inputTypes.Length;
}
if (outputTypes != null)
{
numberOfOutputTypes = outputTypes.Length;
}
int result = NativeMethods.DMOEnum(
ref category,
flags,
numberOfInputTypes,
inputTypes,
numberOfOutputTypes,
outputTypes,
out ptr);
DmoException.Try(result, "Interops", "DMOEnum");
return(new EnumDmo(ptr));
}
/// <summary>
/// Retrieves information about a specified output stream.
/// </summary>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
/// <returns>The information about the specified output stream.</returns>
public DmoOutputStreamInfoFlags GetOutputStreamInfo(int outputStreamIndex)
{
DmoOutputStreamInfoFlags flags;
DmoException.Try(GetOutputStreamInfoNative(outputStreamIndex, out flags), n, "GetOutputSreamInfo");
return(flags);
}
/// <summary>
/// Retrieves the media type that was set for an output stream, if any.
/// </summary>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
/// <returns>The media type that was set for the specified output stream.</returns>
public MediaType GetOutputCurrentType(int outputStreamIndex)
{
MediaType mediaType;
DmoException.Try(GetOutputCurrentType(outputStreamIndex, out mediaType), n, "GetOutputCurrentType");
return(mediaType);
}
/// <summary>
/// This method is not implemented.
/// </summary>
/// <returns>This method is not implemented an will throw an <see cref="DmoException"/> with the error code <see cref="HResult.E_NOTIMPL"/>.</returns>
public EnumDmo Clone()
{
IntPtr p;
DmoException.Try(CloneNative(out p), InterfaceName, "Clone");
return(new EnumDmo(p));
}
/// <summary>
/// Retrieves a specified number of items in the enumeration sequence.
/// </summary>
/// <param name="itemsToFetch">Number of items to retrieve.</param>
/// <returns>Array of enumerated DMOs.</returns>
public DmoEnumItem[] Next(int itemsToFetch)
{
Guid[] clsids;
string[] names;
int itemsFetched;
int result = NextNative(itemsToFetch, out clsids, out names, out itemsFetched);
if (result != (int)HResult.S_FALSE && result != (int)HResult.S_OK)
{
DmoException.Try(result, InterfaceName, "Next");
}
var items = new DmoEnumItem[itemsFetched];
for (int i = 0; i < items.Length; i++)
{
items[i] = new DmoEnumItem
{
CLSID = clsids[i],
Name = names[i]
};
}
return(items);
}
/// <summary>
/// Retrieves a preferred media type for a specified output stream.
/// </summary>
/// <param name="typeIndex">Zero-based index on the set of acceptable media types.</param>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
public MediaType GetOutputType(int outputStreamIndex, int typeIndex)
{
MediaType?mediaType = new MediaType();
DmoException.Try(GetOutputTypeNative(outputStreamIndex, typeIndex, ref mediaType), n, "GetOutputType");
return(mediaType.Value);
}
/// <summary>
/// This method retrieves the buffer requirements for a specified output stream.
/// </summary>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
/// <returns>The buffer requirements for the specified output stream.</returns>
public DmoSizeInfo GetOutputSizeInfo(int outputStreamIndex)
{
int i0, i2;
DmoException.Try(GetOutputSizeInfoNative(outputStreamIndex, out i0, out i2), n, "GetInputSizeInfo");
return(new DmoSizeInfo(i0, i2));
}
/// <summary>
/// This method is not implemented.
/// </summary>
public EnumDMO Clone()
{
IntPtr p;
DmoException.Try(CloneNative(out p), n, "Clone");
return(new EnumDMO(p));
}
//---
/// <summary>
/// Queries whether an input stream can accept more input data.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <returns>The queried input status.</returns>
/// <remarks>
/// For more information, see <see href="http://msdn.microsoft.com/en-us/library/windows/desktop/dd406950(v=vs.85).aspx"/>.
/// </remarks>
public InputStatusFlags GetInputStatus(int inputStreamIndex)
{
InputStatusFlags flags;
int result = GetInputStatusNative(inputStreamIndex, out flags);
DmoException.Try(result, n, "GetInputStatus");
return(flags);
}
/// <summary>
/// Retrieves a preferred media type for a specified output stream.
/// </summary>
/// <param name="typeIndex">Zero-based index on the set of acceptable media types.</param>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
/// <returns>The preferred media type for the specified output stream.</returns>
public MediaType GetOutputType(int outputStreamIndex, int typeIndex)
{
MediaType?mediaType = new MediaType();
DmoException.Try(GetOutputTypeNative(outputStreamIndex, typeIndex, ref mediaType), n, "GetOutputType");
Debug.Assert(mediaType != null, "No mediatype was returned.");
return(mediaType.Value);
}
/// <summary>
/// Specifies the quality of the output.
/// </summary>
/// <param name="quality">
/// Specifies the quality of the output. The valid range is 1 to 60,
/// inclusive.
/// </param>
public void SetHalfFilterLength(int quality)
{
if (quality < 1 || quality > 60)
{
throw new ArgumentOutOfRangeException("quality");
}
DmoException.Try(SetHalfFilterLengthNative(quality), "IWMResamplerProps", "SetHalfFilterLength");
}
/// <summary>
/// Sets the <see cref="MediaType"/> on an output stream, or tests whether a <see cref="MediaType"/> is acceptable.
/// </summary>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
/// <param name="mediaType">The new <see cref="MediaType"/>.</param>
/// <param name="flags">Bitwise combination of zero or more flags from the <see cref="SetTypeFlags"/> enumeration.</param>
public void SetOutputType(int outputStreamIndex, MediaType mediaType, SetTypeFlags flags)
{
int result = SetOutputTypeNative(outputStreamIndex, mediaType, flags);
if ((flags & SetTypeFlags.TestOnly) != SetTypeFlags.TestOnly)
{
DmoException.Try(result, n, "SetOutputType");
}
}
/// <summary>
/// Enumerates DMOs listed in the registry. The caller can search by category, media type, or both.
/// </summary>
/// <param name="category">GUID that specifies which category of DMO to search. Use Guid.Empty to search every category. See <see cref="DmoEnumeratorCategories"/> for a list of category guids.</param>
/// <param name="flags">Flags that specify search criteria.</param>
/// <param name="inputTypes">Array of input-Mediatypes.</param>
/// <param name="outputTypes">Array of output-Mediatypes.</param>
/// <returns>EnumDMO</returns>
public static EnumDMO EnumerateDMOs(Guid category, DmoEnumFlags flags, DmoPartialMediaType[] inputTypes, DmoPartialMediaType[] outputTypes)
{
IntPtr ptr;
int result = DmoInterop.DMOEnum(ref category, flags, inputTypes != null ? inputTypes.Length : 0, inputTypes, outputTypes != null ? inputTypes.Length : 0, outputTypes, out ptr);
DmoException.Try(result, "Interops", "DMOEnum");
return(new EnumDMO(ptr));
}
/// <summary>
/// See http://msdn.microsoft.com/en-us/library/windows/desktop/ff819252(v=vs.85).aspx
/// </summary>
public void SetUserChannelMtx(float[] channelConversitionMatrix)
{
if (channelConversitionMatrix == null)
{
throw new ArgumentNullException("channelConversitionMatrix");
}
DmoException.Try(SetUserChannelMtxNative(channelConversitionMatrix), "IWMResamplerProps", "SetUserChannelMtxNative");
}
/// <summary>
/// Delivers a buffer to the specified input stream.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <param name="mediaBuffer">The mediabuffer which has to be processed.</param>
/// <param name="flags">Flags to describe the mediabuffer.</param>
/// <param name="timestamp">Time stamp that specifies the start time of the data in the buffer. If the buffer has a valid time stamp, set the Time flag in the flags parameter.</param>
/// <param name="timeduration">Reference time specifying the duration of the data in the buffer. If the buffer has a valid time stamp, set the TimeLength flag in the flags parameter.</param>
public unsafe void ProcessInput(int inputStreamIndex, IMediaBuffer mediaBuffer, InputDataBufferFlags flags, long timestamp, long timeduration)
{
int result = ProcessInputNative(inputStreamIndex, mediaBuffer, flags, timestamp, timeduration);
if (result == (int)HResult.S_FALSE)
{
return;
}
DmoException.Try(result, n, "ProcessInput");
}
/// <summary>
/// Generates output from the current input data.
/// </summary>
/// <param name="flags">Bitwise combination of <see cref="ProcessOutputFlags.None"/> or more flags from the <see cref="ProcessOutputFlags"/> enumeration.</param>
/// <param name="buffers">An array of output buffers to process.</param>
/// <param name="bufferCount">Number of output buffers.</param>
public void ProcessOutput(ProcessOutputFlags flags, DmoOutputDataBuffer[] buffers, int bufferCount)
{
int status;
int result = ProcessOutputNative(flags, bufferCount, buffers, out status);
if (result == (int)HResult.S_FALSE)
{
return;
}
DmoException.Try(result, n, "ProcessOutput");
}
/// <summary>
/// Resets the enumeration sequence to the beginning.
/// </summary>
public void Reset()
{
DmoException.Try(ResetNative(), InterfaceName, "Reset");
}
/// <summary>
/// Skips over a specified number of items in the enumeration sequence.
/// </summary>
/// <param name="itemsToSkip">Number of items to skip.</param>
public void Skip(int itemsToSkip)
{
DmoException.Try(SkipNative(itemsToSkip), InterfaceName, "Skip");
}
/// <summary>
/// Clears the inputtype for a specific inputStreamIndex.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
public unsafe void ClearInputType(int inputStreamIndex)
{
DmoException.Try(InteropCalls.CalliMethodPtr(_basePtr, inputStreamIndex, IntPtr.Zero.ToPointer(), SetTypeFlags.Clear, ((void **)(*(void **)_basePtr))[8]), n, "SetInputType");
}
/// <summary>
/// Acquires or releases a lock on the DMO. Call this method to keep the DMO serialized when performing multiple
/// operations.
/// </summary>
/// <param name="bLock">
/// Value that specifies whether to acquire or release the lock. If the value is non-zero, a lock is
/// acquired. If the value is zero, the lock is released.
/// </param>
public void Lock(long bLock)
{
DmoException.Try(LockNative(bLock), n, "Lock");
}
/// <summary>
/// Retrieves the number of input and output streams.
/// </summary>
/// <param name="inputStreams">A variable that receives the number of input streams.</param>
/// <param name="outputStreams">A variable that receives the number of output streams.</param>
public void GetStreamCount(out int inputStreams, out int outputStreams)
{
DmoException.Try(GetStreamCountNative(out inputStreams, out outputStreams), n, "GetStreamCount");
}
/// <summary>
/// Sets the media type on an input stream.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <param name="mediaType">The new mediatype.</param>
/// <param name="flags">Bitwise combination of zero or more flags from the <see cref="SetTypeFlags"/> enumeration.</param>
public void SetInputType(int inputStreamIndex, MediaType mediaType, SetTypeFlags flags)
{
DmoException.Try(SetInputTypeNative(inputStreamIndex, mediaType, flags), n, "SetInputType");
}
/// <summary>
/// Frees resources allocated by the DMO. Calling this method is always optional.
/// </summary>
/// <remarks>
/// For more information, see <see href="http://msdn.microsoft.com/en-us/library/windows/desktop/dd406946(v=vs.85).aspx"/>.
/// </remarks>
public void FreeStreamingResources()
{
DmoException.Try(FreeStreamingResourcesNative(), n, "FreeStreamingResources");
}
/// <summary>
/// Allocates any resources needed by the DMO. Calling this method is always
/// optional.
/// </summary>
/// <remarks>
/// For more information, see <see href="http://msdn.microsoft.com/en-us/library/windows/desktop/dd406943(v=vs.85).aspx"/>.
/// </remarks>
public void AllocateStreamingResources()
{
DmoException.Try(AllocateStreamingResourcesNative(), n, "AllocateStreamingResources");
}
/// <summary>
/// Signals a discontinuity on the specified input stream.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <remarks>A discontinuity represents a break in the input. A discontinuity might occur because no more data is expected, the format is changing, or there is a gap in the data.
/// After a discontinuity, the DMO does not accept further input on that stream until all pending data has been processed.
/// The application should call the <see cref="ProcessOutput(CSCore.DMO.ProcessOutputFlags,CSCore.DMO.DmoOutputDataBuffer[])"/> method until none of the streams returns the <see cref="OutputDataBufferFlags.Incomplete"/> (see <see cref="DmoOutputDataBuffer.Status"/>) flag.
/// This method might fail if it is called before the client sets the input and output types on the DMO.</remarks>
public void Discontinuity(int inputStreamIndex)
{
DmoException.Try(DiscontinuityNative(inputStreamIndex), n, "Discontinuity");
}
/// <summary>
/// This method flushes all internally buffered data.
/// </summary>
public void Flush()
{
DmoException.Try(FlushNative(), n, "Flush");
}
/// <summary>
/// Clears the outputtype for a specific output stream.
/// </summary>
/// <param name="outputStreamIndex">Zero-based index of an output stream on the DMO.</param>
public unsafe void ClearOutputType(int outputStreamIndex)
{
DmoException.Try(
InteropCalls.CalliMethodPtr(UnsafeBasePtr, outputStreamIndex, IntPtr.Zero.ToPointer(), SetTypeFlags.Clear,
((void **)(*(void **)UnsafeBasePtr))[9]), n, "SetOutputType");
}
/// <summary>
/// Sets the maximum latency on a specified input stream.
/// </summary>
/// <param name="inputStreamIndex">Zero-based index of an input stream on the DMO.</param>
/// <param name="maxLatency">Maximum latency in reference time units. Unit = REFERENCE_TIME = 100 nanoseconds</param>
/// <returns>HRESULT</returns>
/// <remarks>For the definition of maximum latency, see <see href="https://msdn.microsoft.com/en-us/Library/dd406948(v=vs.85).aspx"/>.</remarks>
public void SetInputMaxLatency(int inputStreamIndex, long maxLatency)
{
DmoException.Try(SetInputMaxLatencyNative(inputStreamIndex, maxLatency), n, "SetInputMaxLatency");
}
/// <summary>
/// Resets the enumeration sequence to the beginning.
/// </summary>
public void Reset()
{
DmoException.Try(ResetNative(), n, "Reset");
}
