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- //==========================================================================;
- //
- // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
- // KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
- // PURPOSE.
- //
- // Copyright (c) 1992 - 1996 Microsoft Corporation. All Rights Reserved.
- //
- //--------------------------------------------------------------------------;
-
- // Video related definitions and interfaces for ActiveMovie
-
- #ifndef __AMVIDEO__
- #define __AMVIDEO__
-
- #ifdef __cplusplus
- extern "C" {
- #endif // __cplusplus
-
- #include <ddraw.h>
-
-
- // This is an interface on the video renderer that provides information about
- // DirectDraw with respect to its use by the renderer. For example it allows
- // an application to get details of the surface and any hardware capabilities
- // that are available. It also allows someone to adjust the surfaces that the
- // renderer should use and furthermore even set the DirectDraw instance. We
- // allow someone to set the DirectDraw instance because DirectDraw can only
- // be opened once per process so it helps resolve conflicts. There is some
- // duplication in this interface as the hardware/emulated/FOURCCs available
- // can all be found through the IDirectDraw interface, this interface allows
- // simple access to that information without calling the DirectDraw provider
- // itself. The AMDDS prefix is ActiveMovie DirectDraw Switches abbreviated.
-
- #define AMDDS_NONE 0x00 // No use for DCI/DirectDraw
- #define AMDDS_DCIPS 0x01 // Use DCI primary surface
- #define AMDDS_PS 0x02 // Use DirectDraw primary
- #define AMDDS_RGBOVR 0x04 // RGB overlay surfaces
- #define AMDDS_YUVOVR 0x08 // YUV overlay surfaces
- #define AMDDS_RGBOFF 0x10 // RGB offscreen surfaces
- #define AMDDS_YUVOFF 0x20 // YUV offscreen surfaces
- #define AMDDS_RGBFLP 0x40 // RGB flipping surfaces
- #define AMDDS_YUVFLP 0x80 // YUV flipping surfaces
- #define AMDDS_ALL 0xFF // ALL the previous flags
- #define AMDDS_DEFAULT AMDDS_ALL // Use all available surfaces
-
- #define AMDDS_YUV (AMDDS_YUVOFF | AMDDS_YUVOVR | AMDDS_YUVFLP)
- #define AMDDS_RGB (AMDDS_RGBOFF | AMDDS_RGBOVR | AMDDS_RGBFLP)
- #define AMDDS_PRIMARY (AMDDS_DCIPS | AMDDS_PS)
-
- DECLARE_INTERFACE_(IDirectDrawVideo, IUnknown)
- {
- // IUnknown methods
-
- STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID *ppvObj) PURE;
- STDMETHOD_(ULONG,AddRef)(THIS) PURE;
- STDMETHOD_(ULONG,Release)(THIS) PURE;
-
- // IDirectDrawVideo methods
-
- STDMETHOD(GetSwitches)(THIS_ DWORD *pSwitches) PURE;
- STDMETHOD(SetSwitches)(THIS_ DWORD Switches) PURE;
- STDMETHOD(GetCaps)(THIS_ DDCAPS *pCaps) PURE;
- STDMETHOD(GetEmulatedCaps)(THIS_ DDCAPS *pCaps) PURE;
- STDMETHOD(GetSurfaceDesc)(THIS_ DDSURFACEDESC *pSurfaceDesc) PURE;
- STDMETHOD(GetFourCCCodes)(THIS_ DWORD *pCount,DWORD *pCodes) PURE;
- STDMETHOD(SetDirectDraw)(THIS_ LPDIRECTDRAW pDirectDraw) PURE;
- STDMETHOD(GetDirectDraw)(THIS_ LPDIRECTDRAW *ppDirectDraw) PURE;
- STDMETHOD(GetSurfaceType)(THIS_ DWORD *pSurfaceType) PURE;
- STDMETHOD(SetDefault)(THIS) PURE;
- STDMETHOD(UseScanLine)(THIS_ long UseScanLine) PURE;
- STDMETHOD(CanUseScanLine)(THIS_ long *UseScanLine) PURE;
- STDMETHOD(UseOverlayStretch)(THIS_ long UseOverlayStretch) PURE;
- STDMETHOD(CanUseOverlayStretch)(THIS_ long *UseOverlayStretch) PURE;
- STDMETHOD(UseWhenFullScreen)(THIS_ long UseWhenFullScreen) PURE;
- STDMETHOD(WillUseFullScreen)(THIS_ long *UseWhenFullScreen) PURE;
- };
-
-
- DECLARE_INTERFACE_(IQualProp, IUnknown)
- {
- // IUnknown methods
-
- STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID *ppvObj) PURE;
- STDMETHOD_(ULONG,AddRef)(THIS) PURE;
- STDMETHOD_(ULONG,Release)(THIS) PURE;
-
- // Compare these with the functions in class CGargle in gargle.h
-
- STDMETHOD(get_FramesDroppedInRenderer)(THIS_ int *pcFrames) PURE; // Out
- STDMETHOD(get_FramesDrawn)(THIS_ int *pcFramesDrawn) PURE; // Out
- STDMETHOD(get_AvgFrameRate)(THIS_ int *piAvgFrameRate) PURE; // Out
- STDMETHOD(get_Jitter)(THIS_ int *iJitter) PURE; // Out
- STDMETHOD(get_AvgSyncOffset)(THIS_ int *piAvg) PURE; // Out
- STDMETHOD(get_DevSyncOffset)(THIS_ int *piDev) PURE; // Out
- };
-
-
- // This interface allows an application or plug in distributor to control a
- // full screen renderer. The Modex renderer supports this interface. When
- // connected a renderer should load the display modes it has available
- // The number of modes available can be obtained through CountModes. Then
- // information on each individual mode is available by calling GetModeInfo
- // and IsModeAvailable. An application may enable and disable any modes
- // by calling the SetEnabled flag with OATRUE or OAFALSE (not C/C++ TRUE
- // and FALSE values) - the current value may be queried by IsModeEnabled
-
- // A more generic way of setting the modes enabled that is easier to use
- // when writing applications is the clip loss factor. This defines the
- // amount of video that can be lost when deciding which display mode to
- // use. Assuming the decoder cannot compress the video then playing an
- // MPEG file (say 352x288) into a 320x200 display will lose about 25% of
- // the image. The clip loss factor specifies the upper range permissible.
- // To allow typical MPEG video to be played in 320x200 it defaults to 25%
-
- DECLARE_INTERFACE_(IFullScreenVideo, IUnknown)
- {
- // IUnknown methods
-
- STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID *ppvObj) PURE;
- STDMETHOD_(ULONG,AddRef)(THIS) PURE;
- STDMETHOD_(ULONG,Release)(THIS) PURE;
-
- // IFullScreenVideo methods
-
- STDMETHOD(CountModes)(THIS_ long *pModes) PURE;
- STDMETHOD(GetModeInfo)(THIS_ long Mode,long *pWidth,long *pHeight,long *pDepth) PURE;
- STDMETHOD(GetCurrentMode)(THIS_ long *pMode) PURE;
- STDMETHOD(IsModeAvailable)(THIS_ long Mode) PURE;
- STDMETHOD(IsModeEnabled)(THIS_ long Mode) PURE;
- STDMETHOD(SetEnabled)(THIS_ long Mode,long bEnabled) PURE;
- STDMETHOD(GetClipFactor)(THIS_ long *pClipFactor) PURE;
- STDMETHOD(SetClipFactor)(THIS_ long ClipFactor) PURE;
- STDMETHOD(SetMessageDrain)(THIS_ HWND hwnd) PURE;
- STDMETHOD(GetMessageDrain)(THIS_ HWND *hwnd) PURE;
- STDMETHOD(SetMonitor)(THIS_ long Monitor) PURE;
- STDMETHOD(GetMonitor)(THIS_ long *Monitor) PURE;
- STDMETHOD(HideOnDeactivate)(THIS_ long Hide) PURE;
- STDMETHOD(IsHideOnDeactivate)(THIS) PURE;
- STDMETHOD(SetCaption)(THIS_ BSTR strCaption) PURE;
- STDMETHOD(GetCaption)(THIS_ BSTR *pstrCaption) PURE;
- STDMETHOD(SetDefault)(THIS) PURE;
- };
-
-
- // The SDK base classes contain a base video mixer class. Video mixing in a
- // software environment is tricky because we typically have multiple streams
- // each sending data at unpredictable times. To work with this we defined a
- // pin that is the lead pin, when data arrives on this pin we do a mix. As
- // an alternative we may not want to have a lead pin but output samples at
- // predefined spaces, like one every 1/15 of a second, this interfaces also
- // supports that mode of operations (there is a working video mixer sample)
-
- DECLARE_INTERFACE_(IBaseVideoMixer, IUnknown)
- {
- STDMETHOD(SetLeadPin)(THIS_ int iPin) PURE;
- STDMETHOD(GetLeadPin)(THIS_ int *piPin) PURE;
- STDMETHOD(GetInputPinCount)(THIS_ int *piPinCount) PURE;
- STDMETHOD(IsUsingClock)(THIS_ int *pbValue) PURE;
- STDMETHOD(SetUsingClock)(THIS_ int bValue) PURE;
- STDMETHOD(GetClockPeriod)(THIS_ int *pbValue) PURE;
- STDMETHOD(SetClockPeriod)(THIS_ int bValue) PURE;
- };
-
- #define iPALETTE_COLORS 256 // Maximum colours in palette
- #define iEGA_COLORS 16 // Number colours in EGA palette
- #define iMASK_COLORS 3 // Maximum three components
- #define iTRUECOLOR 16 // Minimum true colour device
- #define iRED 0 // Index position for RED mask
- #define iGREEN 1 // Index position for GREEN mask
- #define iBLUE 2 // Index position for BLUE mask
- #define iPALETTE 8 // Maximum colour depth using a palette
- #define iMAXBITS 8 // Maximum bits per colour component
-
-
- // Used for true colour images that also have a palette
-
- typedef struct tag_TRUECOLORINFO {
- DWORD dwBitMasks[iMASK_COLORS];
- RGBQUAD bmiColors[iPALETTE_COLORS];
- } TRUECOLORINFO;
-
-
- // The BITMAPINFOHEADER contains all the details about the video stream such
- // as the actual image dimensions and their pixel depth. A source filter may
- // also request that the sink take only a section of the video by providing a
- // clipping rectangle in rcSource. In the worst case where the sink filter
- // forgets to check this on connection it will simply render the whole thing
- // which isn't a disaster. Ideally a sink filter will check the rcSource and
- // if it doesn't support image extraction and the rectangle is not empty then
- // it will reject the connection. A filter should use SetRectEmpty to reset a
- // rectangle to all zeroes (and IsRectEmpty to later check the rectangle).
- // The rcTarget specifies the destination rectangle for the video, for most
- // source filters they will set this to all zeroes, a downstream filter may
- // request that the video be placed in a particular area of the buffers it
- // supplies in which case it will call QueryAccept with a non empty target
-
- typedef struct tagVIDEOINFOHEADER {
-
- RECT rcSource; // The bit we really want to use
- RECT rcTarget; // Where the video should go
- DWORD dwBitRate; // Approximate bit data rate
- DWORD dwBitErrorRate; // Bit error rate for this stream
- REFERENCE_TIME AvgTimePerFrame; // Average time per frame (100ns units)
-
- BITMAPINFOHEADER bmiHeader;
-
- } VIDEOINFOHEADER;
-
- // All the image based filters use this to communicate their media types. It's
- // centred principally around the BITMAPINFO. This structure always contains a
- // BITMAPINFOHEADER followed by a number of other fields depending on what the
- // BITMAPINFOHEADER contains. If it contains details of a palettised format it
- // will be followed by one or more RGBQUADs defining the palette. If it holds
- // details of a true colour format then it may be followed by a set of three
- // DWORD bit masks that specify where the RGB data can be found in the image
- // (For more information regarding BITMAPINFOs see the Win32 documentation)
-
- // The rcSource and rcTarget fields are not for use by filters supplying the
- // data. The destination (target) rectangle should be set to all zeroes. The
- // source may also be zero filled or set with the dimensions of the video. So
- // if the video is 352x288 pixels then set it to (0,0,352,288). These fields
- // are mainly used by downstream filters that want to ask the source filter
- // to place the image in a different position in an output buffer. So when
- // using for example the primary surface the video renderer may ask a filter
- // to place the video images in a destination position of (100,100,452,388)
- // on the display since that's where the window is positioned on the display
-
- typedef struct tagVIDEOINFO {
-
- RECT rcSource; // The bit we really want to use
- RECT rcTarget; // Where the video should go
- DWORD dwBitRate; // Approximate bit data rate
- DWORD dwBitErrorRate; // Bit error rate for this stream
- REFERENCE_TIME AvgTimePerFrame; // Average time per frame (100ns units)
-
- BITMAPINFOHEADER bmiHeader;
-
- union {
- RGBQUAD bmiColors[iPALETTE_COLORS]; // Colour palette
- DWORD dwBitMasks[iMASK_COLORS]; // True colour masks
- TRUECOLORINFO TrueColorInfo; // Both of the above
- };
-
- } VIDEOINFO;
-
- // These macros define some standard bitmap format sizes
-
- #define SIZE_EGA_PALETTE (iEGA_COLORS * sizeof(RGBQUAD))
- #define SIZE_PALETTE (iPALETTE_COLORS * sizeof(RGBQUAD))
- #define SIZE_MASKS (iMASK_COLORS * sizeof(DWORD))
- #define SIZE_PREHEADER (FIELD_OFFSET(VIDEOINFO,bmiHeader))
- #define SIZE_VIDEOHEADER (sizeof(BITMAPINFOHEADER) + SIZE_PREHEADER)
-
- // DIBSIZE calculates the number of bytes required by an image
-
- #define WIDTHBYTES(bits) ((DWORD)(((bits)+31) & (~31)) / 8)
- #define DIBWIDTHBYTES(bi) (DWORD)WIDTHBYTES((DWORD)(bi).biWidth * (DWORD)(bi).biBitCount)
- #define _DIBSIZE(bi) (DIBWIDTHBYTES(bi) * (DWORD)(bi).biHeight)
- #define DIBSIZE(bi) ((bi).biHeight < 0 ? (-1)*(_DIBSIZE(bi)) : _DIBSIZE(bi))
-
- // This compares the bit masks between two VIDEOINFOs
-
- #define BIT_MASKS_MATCH(pbmi1,pbmi2) \
- (((pbmi1)->dwBitMasks[iRED] == (pbmi2)->dwBitMasks[iRED]) && \
- ((pbmi1)->dwBitMasks[iGREEN] == (pbmi2)->dwBitMasks[iGREEN]) && \
- ((pbmi1)->dwBitMasks[iBLUE] == (pbmi2)->dwBitMasks[iBLUE]))
-
- // These zero fill different parts of the VIDEOINFO structure
-
- #define RESET_MASKS(pbmi) (ZeroMemory((PVOID)(pbmi)->dwBitFields,SIZE_MASKS))
- #define RESET_HEADER(pbmi) (ZeroMemory((PVOID)(pbmi),SIZE_VIDEOHEADER))
- #define RESET_PALETTE(pbmi) (ZeroMemory((PVOID)(pbmi)->bmiColors,SIZE_PALETTE));
-
- // Other (hopefully) useful bits and bobs
-
- #define PALETTISED(pbmi) ((pbmi)->bmiHeader.biBitCount <= iPALETTE)
- #define PALETTE_ENTRIES(pbmi) ((DWORD) 1 << (pbmi)->bmiHeader.biBitCount)
-
- // Returns the address of the BITMAPINFOHEADER from the VIDEOINFO
- #define HEADER(pVideoInfo) (&(((VIDEOINFO *) (pVideoInfo))->bmiHeader))
-
-
- // MPEG variant - includes a DWORD length followed by the
- // video sequence header after the video header.
- //
- // The sequence header includes the sequence header start code and the
- // quantization matrices associated with the first sequence header in the
- // stream so is a maximum of 140 bytes long.
-
- typedef struct tagMPEG1VIDEOINFO {
-
- VIDEOINFOHEADER hdr; // Compatible with VIDEOINFO
- DWORD dwStartTimeCode; // 25-bit Group of pictures time code
- // at start of data
- DWORD cbSequenceHeader; // Length in bytes of bSequenceHeader
- BYTE bSequenceHeader[1]; // Sequence header including
- // quantization matrices if any
- } MPEG1VIDEOINFO;
-
- #define MAX_SIZE_MPEG1_SEQUENCE_INFO 140
- #define SIZE_MPEG1VIDEOINFO(pv) (FIELD_OFFSET(MPEG1VIDEOINFO, bSequenceHeader[0]) + (pv)->cbSequenceHeader)
- #define MPEG1_SEQUENCE_INFO(pv) ((const BYTE *)(pv)->bSequenceHeader)
-
-
- // Analog video variant - Use this when the format is FORMAT_AnalogVideo
- //
- // rcSource defines the portion of the active video signal to use
- // rcTarget defines the destination rectangle
- // both of the above are relative to the dwActiveWidth and dwActiveHeight fields
- // dwActiveWidth is currently set to 720 for all formats (but could change for HDTV)
- // dwActiveHeight is 483 for NTSC and 575 for PAL/SECAM (but could change for HDTV)
-
- typedef struct tagAnalogVideoInfo {
- RECT rcSource; // Width max is 720, height varies w/ TransmissionStd
- RECT rcTarget; // Where the video should go
- DWORD dwActiveWidth; // Always 720 (CCIR-601 active samples per line)
- DWORD dwActiveHeight; // 483 for NTSC, 575 for PAL/SECAM
- REFERENCE_TIME AvgTimePerFrame; // Normal ActiveMovie units (100 nS)
- } ANALOGVIDEOINFO;
-
-
- #ifdef __cplusplus
- }
- #endif // __cplusplus
- #endif // __AMVIDEO__
-
-