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re3/sdk/dx8sdk/Include/DShowIDL/mediaobj.idl

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//------------------------------------------------------------------------------
// File: MediaObj.idl
//
// Desc: Define the interfaces for DirectX Media Objects. This file will be
// processed by the MIDL tool to produce mediaobj.h and proxy-stub code.
//
// Copyright (c) 1999 - 2002, Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
import "unknwn.idl";
import "objidl.idl";
// DMO_MEDIA_TYPE structure
cpp_quote("#ifdef __strmif_h__")
cpp_quote("typedef AM_MEDIA_TYPE DMO_MEDIA_TYPE;")
cpp_quote("#else")
typedef struct _DMOMediaType {
GUID majortype;
GUID subtype;
BOOL bFixedSizeSamples;
BOOL bTemporalCompression;
ULONG lSampleSize;
GUID formattype;
IUnknown *pUnk;
ULONG cbFormat;
[size_is(cbFormat)] BYTE * pbFormat;
} DMO_MEDIA_TYPE;
typedef LONGLONG REFERENCE_TIME;
cpp_quote("#endif")
// Per-buffer flags that apply to input buffers
enum _DMO_INPUT_DATA_BUFFER_FLAGS {
DMO_INPUT_DATA_BUFFERF_SYNCPOINT = 0x00000001,
DMO_INPUT_DATA_BUFFERF_TIME = 0x00000002,
DMO_INPUT_DATA_BUFFERF_TIMELENGTH = 0x00000004
};
// Per-buffer flags that apply to output buffers.
enum _DMO_OUTPUT_DATA_BUFFER_FLAGS {
DMO_OUTPUT_DATA_BUFFERF_SYNCPOINT = 0x00000001,
DMO_OUTPUT_DATA_BUFFERF_TIME = 0x00000002,
DMO_OUTPUT_DATA_BUFFERF_TIMELENGTH = 0x00000004,
//
// This flag means the object could have generated more data for this
// output stream, even with no additional input from any input stream,
// but the output buffer did not have sufficient room.
//
DMO_OUTPUT_DATA_BUFFERF_INCOMPLETE = 0x01000000
};
// Flags returned by GetInputStatus()
enum _DMO_INPUT_STATUS_FLAGS {
//
// ACCEPT_DATA indicates that the input stream is ready to accept
// new data via ProcessInput().
//
DMO_INPUT_STATUSF_ACCEPT_DATA = 0x00000001
};
// Flags returned by GetInputStreamInfo()
enum _DMO_INPUT_STREAM_INFO_FLAGS {
DMO_INPUT_STREAMF_WHOLE_SAMPLES = 0x00000001,
DMO_INPUT_STREAMF_SINGLE_SAMPLE_PER_BUFFER = 0x00000002,
DMO_INPUT_STREAMF_FIXED_SAMPLE_SIZE = 0x00000004,
DMO_INPUT_STREAMF_HOLDS_BUFFERS = 0x00000008
};
// Flags returned by GetOutputStreamInfo()
enum _DMO_OUTPUT_STREAM_INFO_FLAGS {
DMO_OUTPUT_STREAMF_WHOLE_SAMPLES = 0x00000001,
DMO_OUTPUT_STREAMF_SINGLE_SAMPLE_PER_BUFFER = 0x00000002,
DMO_OUTPUT_STREAMF_FIXED_SAMPLE_SIZE = 0x00000004,
DMO_OUTPUT_STREAMF_DISCARDABLE = 0x00000008,
DMO_OUTPUT_STREAMF_OPTIONAL = 0x00000010
};
// SetType flags
enum _DMO_SET_TYPE_FLAGS {
DMO_SET_TYPEF_TEST_ONLY = 0x00000001,// check but don't set
DMO_SET_TYPEF_CLEAR = 0x00000002 // unset
};
// Process Output Flags
enum _DMO_PROCESS_OUTPUT_FLAGS {
DMO_PROCESS_OUTPUT_DISCARD_WHEN_NO_BUFFER = 0x00000001 // Discard
};
// Buffer wrapper interface
[
object,
uuid(59eff8b9-938c-4a26-82f2-95cb84cdc837)
]
interface IMediaBuffer : IUnknown
{
HRESULT SetLength(
DWORD cbLength
);
HRESULT GetMaxLength(
[out] DWORD *pcbMaxLength
);
HRESULT GetBufferAndLength(
[out] BYTE **ppBuffer, // not filled if NULL
[out] DWORD *pcbLength // not filled if NULL
);
}
//
// Output buffer info structure: one of these must be passed in for each
// output stream with every ProcessOutput() call
// All [out] fields should be
// assumed undefined if ProcessOutput() failed
//
typedef struct _DMO_OUTPUT_DATA_BUFFER {
IMediaBuffer *pBuffer; // [in] can be NULL
// ProcessOutput() must set any appropriate flags and zero out the rest.
DWORD dwStatus; // [out] DMO_OUTPUT_DATA_BUFFERF_XXX (INCOMPLETE, etc.)
//
// Each of these is valid if the corresponding flag is set in dwStatus
//
REFERENCE_TIME rtTimestamp; // [out]
REFERENCE_TIME rtTimelength; // [out]
} DMO_OUTPUT_DATA_BUFFER, *PDMO_OUTPUT_DATA_BUFFER;
// Interface supported by media objects
[
object,
uuid(d8ad0f58-5494-4102-97c5-ec798e59bcf4)
]
interface IMediaObject : IUnknown
{
//
// Stream enumeration
//
HRESULT GetStreamCount(
[out] DWORD *pcInputStreams,
[out] DWORD *pcOutputStreams
);
HRESULT GetInputStreamInfo(
DWORD dwInputStreamIndex, // 0-based
[out] DWORD *pdwFlags // HOLDS_BUFFERS
);
HRESULT GetOutputStreamInfo(
DWORD dwOutputStreamIndex, // 0-based
[out] DWORD *pdwFlags // Media object sets to 0
);
//
// Mediatypes
//
//
// GetType - iterate through media types supported by a stream.
// Returns S_FALSE if the type index is out of range ("no more types").
//
HRESULT GetInputType(
DWORD dwInputStreamIndex,
DWORD dwTypeIndex, // 0-based
[out] DMO_MEDIA_TYPE *pmt
);
HRESULT GetOutputType(
DWORD dwOutputStreamIndex,
DWORD dwTypeIndex, // 0-based
[out] DMO_MEDIA_TYPE *pmt
);
//
// SetType - tell the object the type of data it will work with.
//
HRESULT SetInputType(
DWORD dwInputStreamIndex,
[in] const DMO_MEDIA_TYPE *pmt,
DWORD dwFlags // test only
);
HRESULT SetOutputType(
DWORD dwOutputStreamIndex,
[in] const DMO_MEDIA_TYPE *pmt,
DWORD dwFlags // test only
);
//
// GetCurrentType - get the last mediatype supplied via SetType.
// Returns S_FALSE if SetType has not been called.
//
HRESULT GetInputCurrentType(
DWORD dwInputStreamIndex,
[out] DMO_MEDIA_TYPE *pmt
);
HRESULT GetOutputCurrentType(
DWORD dwOutputStreamIndex,
[out] DMO_MEDIA_TYPE *pmt
);
//
// SizeInfo
//
//
// GetSizeInfo - Get buffer size requirementes of a stream.
//
// If buffer size depends on the media type used, the object should
// base its response on the most recent media type set for this stream.
// If no mediatype has been set, the object may return an error.
//
HRESULT GetInputSizeInfo(
DWORD dwInputStreamIndex,
[out] DWORD *pcbSize, // size of input 'quantum'
[out] DWORD *pcbMaxLookahead, // max total bytes held
[out] DWORD *pcbAlignment // buffer alignment requirement
);
HRESULT GetOutputSizeInfo(
DWORD dwOutputStreamIndex,
[out] DWORD *pcbSize, // size of output 'quantum'
[out] DWORD *pcbAlignment // buffer alignment requirement
);
//
// Latency methods
//
HRESULT GetInputMaxLatency(
DWORD dwInputStreamIndex,
[out] REFERENCE_TIME *prtMaxLatency
);
HRESULT SetInputMaxLatency(
DWORD dwInputStreamIndex,
REFERENCE_TIME rtMaxLatency
);
//
// Streaming / state methods
//
//
// Flush() - discard any buffered data.
//
HRESULT Flush();
//
// Send a discontinuity to an input stream. The object will not
// accept any more data on this input stream until the discontinuity
// has been completely processed, which may involve multiple
// ProcessOutput() calls.
//
HRESULT Discontinuity(DWORD dwInputStreamIndex);
//
// If a streaming object needs to perform any time consuming
// initialization before it can stream data, it should do it inside
// AllocateStreamingResources() rather than during the first process
// call.
//
// This method is NOT guaranteed to be called before streaming
// starts. If it is not called, the object should perform any
// required initialization during a process call.
//
HRESULT AllocateStreamingResources();
// Free anything allocated in AllocateStreamingResources().
HRESULT FreeStreamingResources();
// GetInputStatus - the only flag defined right now is ACCEPT_DATA.
HRESULT GetInputStatus(
DWORD dwInputStreamIndex,
[out] DWORD *dwFlags // ACCEPT_DATA
);
//
// Pass one new buffer to an input stream
//
HRESULT ProcessInput(
DWORD dwInputStreamIndex,
IMediaBuffer *pBuffer, // must not be NULL
DWORD dwFlags, // DMO_INPUT_DATA_BUFFERF_XXX (syncpoint, etc.)
REFERENCE_TIME rtTimestamp, // valid if flag set
REFERENCE_TIME rtTimelength // valid if flag set
);
//
// ProcessOutput() - generate output for current input buffers
//
// Output stream specific status information is returned in the
// dwStatus member of each buffer wrapper structure.
//
HRESULT ProcessOutput(
DWORD dwFlags, // DMO_PROCESS_OUTPUT_FLAGS
DWORD cOutputBufferCount, // # returned by GetStreamCount()
[in,out,size_is(cOutputBufferCount)]
DMO_OUTPUT_DATA_BUFFER *pOutputBuffers, // one per stream
[out] DWORD *pdwStatus // TBD, must be set to 0
);
// Locking - lock if bLock is TRUE, otherwise unlock
HRESULT Lock(LONG bLock);
};
//
// Interface returned by the DMO enumeration API
//
[
object,
uuid(2c3cd98a-2bfa-4a53-9c27-5249ba64ba0f)
]
interface IEnumDMO : IUnknown {
HRESULT Next(
DWORD cItemsToFetch,
[out, size_is(cItemsToFetch), length_is(*pcItemsFetched)] CLSID *pCLSID,
[out, size_is(cItemsToFetch), length_is(*pcItemsFetched), string] WCHAR **Names,
[out] DWORD *pcItemsFetched
);
HRESULT Skip(
DWORD cItemsToSkip
);
HRESULT Reset(void);
HRESULT Clone(
[out] IEnumDMO **ppEnum
);
}
// Flags for IMediaObjectInPlace::Process
enum _DMO_INPLACE_PROCESS_FLAGS {
DMO_INPLACE_NORMAL = 0x00000000,
DMO_INPLACE_ZERO = 0x00000001
};
[
object,
uuid(651b9ad0-0fc7-4aa9-9538-d89931010741)
]
interface IMediaObjectInPlace : IUnknown {
// Proces - Given a buffer of size ulSize, put the output
// of the DMO into the same buffer.
HRESULT Process(
[in] ULONG ulSize,
[in,out,size_is(ulSize)] BYTE* pData,
[in] REFERENCE_TIME refTimeStart,
[in] DWORD dwFlags
);
// Create a copy of the In-Place Media Object. This allows
// for very fast initialization of a number of In-Place objects
// in a known state.
HRESULT Clone(
[out] IMediaObjectInPlace **ppMediaObject
);
// GetLatency - Returns a REFERENCE_TIME value
// (1 tick = 100ns) which corresponds to the latency time
// processing this effect will add to the graph. This assumes
// the effect cost per buffer is a constant.
HRESULT GetLatency(
[out] REFERENCE_TIME *pLatencyTime
);
}
// Quality control status flags
enum _DMO_QUALITY_STATUS_FLAGS {
DMO_QUALITY_STATUS_ENABLED = 0x00000001
};
[
object,
uuid(65abea96-cf36-453f-af8a-705e98f16260)
]
interface IDMOQualityControl : IUnknown {
HRESULT SetNow(
[in] REFERENCE_TIME rtNow
);
HRESULT SetStatus(
[in] DWORD dwFlags
);
HRESULT GetStatus(
[out] DWORD *pdwFlags
);
}
// Flags for IVideoOutputOptimizations
enum _DMO_VIDEO_OUTPUT_STREAM_FLAGS {
DMO_VOSF_NEEDS_PREVIOUS_SAMPLE = 0x00000001
};
[
object,
uuid(be8f4f4e-5b16-4d29-b350-7f6b5d9298ac)
]
interface IDMOVideoOutputOptimizations : IUnknown {
HRESULT QueryOperationModePreferences (
ULONG ulOutputStreamIndex,
DWORD *pdwRequestedCapabilities
);
HRESULT SetOperationMode (
ULONG ulOutputStreamIndex,
DWORD dwEnabledFeatures
);
HRESULT GetCurrentOperationMode (
ULONG ulOutputStreamIndex,
DWORD *pdwEnabledFeatures
);
HRESULT GetCurrentSampleRequirements (
ULONG ulOutputStreamIndex,
DWORD *pdwRequestedFeatures
);
}