This section describes the Microsoft® DirectShow™ data types.
| Data type | Description |
| AM_ASPECT_RATIO_MODE | Specifies the aspect ratio of a video image in a display window. |
| AM_DVD_GRAPH_FLAGS | Specifies the type of decoder to use in a DVD filter graph. |
| AM_DVD_STREAM_FLAGS | Describes a DVD stream type (video, audio, or subpicture). |
| AM_LINE21_CCLEVEL | Closed caption capability level. |
| AM_LINE21_CCSERVICE | Closed caption decoder service. |
| AM_LINE21_CCSTATE | Closed caption state (on or off). |
| AM_LINE21_DRAWBGMODE | Closed caption text background mode. |
| AM_SAMPLE_PROPERTY_FLAGS | Values for the dwSampleFlags member of the AM_SAMPLE2_PROPERTIES structure. |
| AM_STREAM_INFO_FLAGS | Indicates whether or not various components of the AM_STREAM_INFO structure have been set. |
| AMVP_CONTEXT | Specifies the video port (VP) context (Video or VBI data). |
| AMVP_MODE | Specifies the various modes for video ports (VP). |
| AnalogVideoStandard | Specifies the format of the baseband analog video signal. |
| CameraControlProperty | Specifies what part of the camera DirectShow is controlling. |
| CL_ELEM_FLAGS | Cutlist element flags. |
| CL_ELEM_STATUS | Cutlist status flags. |
| CompressionCaps | Indicates video compression capabilities. |
| DVD_DISC_SIDE | Sides of a DVD disc. |
| DVD_DOMAIN | Indicates the state of a DVD player. |
| DVD_ERROR | Specifies DVD error conditions. |
| DVD_FRAMERATE | DVD frame rates. |
| DVD_MENU_ID | DVD Video Title Set (VTS) menu identifiers. |
| DVD_PLAYBACK_LOCATION | DVD playback location. |
| DVD_WARNING | Specifies DVD warning conditions. |
| FILTER_STATE | Describes a filter's state. |
| InterleavingMode | Specifies how video frames and audio samples are to be written to disk. |
| MPEG2Level | The MPEG2 video Level as specified in the MPEG2 video standard. (ISO13818-2) |
| MPEG2Profile | The MPEG2 video Profile as specified in the MPEG2 video standard. (ISO13818-2) |
| PIN_DIRECTION | Describes a pin's direction. |
| QualityMessageType | Describes a quality message type. |
| REG_PINFLAG | Flags for the dwFlags member in the REGFILTERPINS2 structure. |
| StreamControlState | Describes the state of the stream and indicates how to proceed. |
| TunerInputType | Specifies the frequency of a TV tuner (Cable or Antenna). |
| VfwCaptureDialogs | Specifies a dialog box that might exist in a Microsoft Video for Windows® capture driver. |
| VfwCompressDialogs | Specifies a dialog box that might exist in a Video for Windows compression (codec) driver. |
Specifies the aspect ratio of a video image in a display window.
typedef enum _AM_ASPECT_RATIO_MODE
{
AM_ARMODE_NONE,
AM_ARMODE_LETTER_BOX,
} AM_ASPECT_RATIO_MODE;
If the AM_ARMODE_NONE member is specified in this enumerated type, a video stream will always occupy the entire region of the display window when the window is resized. The AM_ARMODE_LETTER_BOX member eliminates stretching and distortions of the video by keeping the aspect ratio consistant and painting the excess areas of the window a background color.
Specifies the type of decoder to use in a DVD filter graph.
enum {
AM_DVD_HWDEC_PREFER,
AM_DVD_HWDEC_ONLY,
AM_DVD_SWDEC_PREFER,
AM_DVD_SWDEC_ONLY,
AM_DVD_NOVPE
} AM_DVD_GRAPH_FLAGS;
Do not combine any of the hardware flags (AM_DVD_HWDEC_*) with any of the software flags (AM_DVD_SWDEC_*). However, you can combine AM_DVD_NOVPE with any of the hardware flags.
IDvdGraphBuilder::RenderDvdVideoVolume
Describes a DVD stream type (video, audio, or subpicture).
enum {
AM_DVD_STREAM_VIDEO,
AM_DVD_STREAM_AUDIO,
AM_DVD_STREAM_SUBPIC
} AM_DVD_STREAM_FLAGS;
Closed caption capability level.
typedef enum _AM_LINE21_CCLEVEL {
AM_L21_CCLEVEL_TC2
} AM_LINE21_CCLEVEL, *PAM_LINE21_CCLEVEL ;
IAMLine21Decoder::GetDecoderLevel
Closed caption decoder service.
typedef enum _AM_LINE21_CCSERVICE {
AM_L21_CCSERVICE_None,
AM_L21_CCSERVICE_Caption1,
AM_L21_CCSERVICE_Caption2,
AM_L21_CCSERVICE_Text1,
AM_L21_CCSERVICE_Text2,
AM_L21_CCSERVICE_XDS,
} AM_LINE21_CCSERVICE, *PAM_LINE21_CCSERVICE ;
IAMLine21Decoder::GetCurrentService, IAMLine21Decoder::SetCurrentService
Closed caption state (on or off).
typedef enum _AM_LINE21_CCSTATE {
AM_L21_CCSTATE_Off,
AM_L21_CCSTATE_On
} AM_LINE21_CCSTATE, *PAM_LINE21_CCSTATE ;
IAMLine21Decoder::GetServiceState, IAMLine21Decoder::SetServiceState
Closed caption text background mode.
typedef enum _AM_LINE21_DRAWBGMODE {
AM_L21_DRAWBGMODE_Opaque,
AM_L21_DRAWBGMODE_Transparent
} AM_LINE21_DRAWBGMODE, *PAM_LINE21_DRAWBGMODE ;
IAMLine21Decoder::GetDrawBackgroundMode, IAMLine21Decoder::SetDrawBackgroundMode
Values for the dwSampleFlags member of the AM_SAMPLE2_PROPERTIES structure.
enum tagAM_SAMPLE_PROPERTY_FLAGS
{ AM_SAMPLE_SPLICEPOINT = 0x01,
AM_SAMPLE_PREROLL = 0x02,
AM_SAMPLE_DATADISCONTINUITY = 0x04,
AM_SAMPLE_TYPECHANGED = 0x08,
AM_SAMPLE_TIMEVALID = 0x10,
AM_SAMPLE_TIMEDISCONTINUITY = 0x40,
AM_SAMPLE_FLUSH_ON_PAUSE = 0x80,
AM_SAMPLE_STOPVALID = 0x100,
AM_SAMPLE_ENDOFSTREAM = 0x200,
AM_STREAM_MEDIA = 0,
AM_STREAM_CONTROL = 1
};
Indicates whether or not various components of the AM_STREAM_INFO structure have been set.
typedef enum {
AM_STREAM_INFO_START_DEFINED = 0x00000001,
AM_STREAM_INFO_STOP_DEFINED = 0x00000002,
AM_STREAM_INFO_DISCARDING = 0x00000004,
AM_STREAM_INFO_STOP_SEND_EXTRA = 0x00000010
} AM_STREAM_INFO_FLAGS;
Specifies the video port (VP) context (Video or VBI data).
typedef enum _AMVP_CONTEXT {
AMVP_CONTEXT_VBI,
AMVP_CONTEXT_VIDEO
} AMVP_CONTEXT;
Specifies the various modes for video ports.
typedef enum _AMVP_MODE{
AMVP_MODE_WEAVE,
AMVP_MODE_BOBINTERLEAVED,
AMVP_MODE_BOBNONINTERLEAVED,
AMVP_MODE_SKIPEVEN,
AMVP_MODE_SKIPODD
} AMVP_MODE;
Specifies the format of the baseband analog video signal.
typedef enum
{
AnalogVideo_None = 0x00000000
AnalogVideo_NTSC_M = 0x00000001, // 75 IRE Setup
AnalogVideo_NTSC_M_J = 0x00000002, // Japan, 0 IRE Setup
AnalogVideo_NTSC_433 = 0x00000004
AnalogVideo_PAL_B = 0x00000010,
AnalogVideo_PAL_D = 0x00000020,
AnalogVideo_PAL_H = 0x00000080,
AnalogVideo_PAL_I = 0x00000100,
AnalogVideo_PAL_M = 0x00000200,
AnalogVideo_PAL_N = 0x00000400,
AnalogVideo_PAL_60 = 0x00000800,
AnalogVideo_SECAM_B = 0x00001000,
AnalogVideo_SECAM_D = 0x00002000,
AnalogVideo_SECAM_G = 0x00004000,
AnalogVideo_SECAM_H = 0x00008000,
AnalogVideo_SECAM_K = 0x00010000,
AnalogVideo_SECAM_K1 = 0x00020000,
AnalogVideo_SECAM_L = 0x00040000,
AnalogVideo_SECAM_L1 = 0x00080000,
} AnalogVideoStandard;
Specifies what part of the camera DirectShow is controlling.
typedef enum
{
CameraControl_Pan = 1,
CameraControl_Tilt,
CameraControl_Roll,
CameraControl_Zoom,
CameraControl_Exposure,
CameraControl_Iris,
CameraControl_Focus
} CameraControlProperty;
Cutlist element flags.
enum CL_ELEM_FLAGS{
CL_ELEM_FIRST,
CL_ELEM_LAST,
CL_ELEM_NULL,
CL_ELEM_ALL,
CL_ELEM_NONE};
Cutlist status flags.
enum CL_ELEM_STATUS{
CL_NOT_PLAYED,
CL_PLAYING,
CL_FINISHED,
CL_STATE_INVALID,
CL_STATE_MASK,
CL_WAIT_FOR_STATE};
Indicates video compression capabilities.
typedef enum {
CompressionCaps_CanQuality = 0x00000001,
CompressionCaps_CanCrunch = 0x00000002,
CompressionCaps_CanKeyFrame = 0x00000004,
CompressionCaps_CanBFrame = 0x00000008,
CompressionCaps_CanWindow = 0x0000000A
} CompressionCaps;
Sides of a DVD disc.
typedef enum tagDVD_DISC_SIDE {
DVD_SIDE_A,
DVD_SIDE_B
} DVD_DISC_SIDE;
Indicates the state of a DVD player.
typedef enum tagDVD_DOMAIN {
DVD_DOMAIN_FirstPlay,
DVD_DOMAIN_VideoManagerMenu,
DVD_DOMAIN_VideoTitleSetMenu,
DVD_DOMAIN_Title,
DVD_DOMAIN_Stop
} DVD_DOMAIN;
Specifies DVD error conditions.
typedef enum _tagDVD_ERROR {
DVD_ERROR_Unexpected,
DVD_ERROR_CopyProtectFail,
DVD_ERROR_InvalidDVD1_0Disc,
DVD_ERROR_InvalidDiscRegion,
DVD_ERROR_LowParentalLevel
} DVD_ERROR;
DVD frame rates.
typedef enum tagDVD_FRAMERATE
{
DVD_FPS_25,
DVD_FPS_30NonDrop
} DVD_FRAMERATE;
You must know the frame rate to interpret the frame count as time.
DVD Video Title Set (VTS) menu identifiers.
typedef enum tagDVD_MENU_ID {
DVD_MENU_Title,
DVD_MENU_Root,
DVD_MENU_Subpicture,
DVD_MENU_Audio,
DVD_MENU_Angle,
DVD_MENU_Chapter
} DVD_MENU_ID;
The root menu always provides a means of getting to the subpicture, audio, angle and chapter menus if they exist.
DVD playback location.
typedef struct tagDVD_PLAYBACK_LOCATION
{
ULONG TitleNum;
ULONG ChapterNum;
ULONG TimeCode;
} DVD_PLAYBACK_LOCATION;
TitleNum and ChapterNum or TitleNum and TimeCode are sufficient to save the playback location for simple linear movies.
Specifies DVD warning conditions.
typedef enum _tagDVD_WARNING {
DVD_WARNING_InvalidDVD1_0Disc }
DVD_WARNING;
Describes a filter's state.
typedef enum _FilterState
{ State_Stopped = 0,
State_Paused = State_Stopped + 1,
State_Running = State_Paused + 1
} FILTER_STATE;
Specifies how video frames and audio samples are to be written to disk.
typedef enum
{
INTERLEAVE_NONE,
INTERLEAVE_CAPTURE,
INTERLEAVE_FULL
} InterleavingMode;
The MPEG2 video Level as specified in the MPEG2 video standard. (ISO13818-2)
enum MPEG2Level {
MPEG2Level_Low = 1,
MPEG2Level_Main,
MPEG2Level_High1440,
MPEG2Level_High
};
DVD MPEG-2 video decoders should support MPEG2Level_Low or MPEG2Level_Main.
The MPEG2 video Profile as specified in the MPEG2 video standard. (ISO13818-2)
enum MPEG2Profile {
MPEG2Profile_Simple = 1,
MPEG2Profile_Main,
MPEG2Profile_SNRScalable,
MPEG2Profile_SpatiallyScalable,
MPEG2Profile_High
};
DVD video decoders should support MPEG2Profile_Simple or MPEG2Profile_Main.
Describes a pin's direction.
typedef enum _PinDirection {
PINDIR_INPUT,
PINDIR_OUTPUT
} PIN_DIRECTION;
Describes a quality message type.
typedef enum {
Famine,
Flood
} QualityMessageType;
Flags for the dwFlags member in the REGFILTERPINS2 structure.
enum
{
REG_PINFLAG_B_ZERO = 0x1,
REG_PINFLAG_B_RENDERER = 0x2,
REG_PINFLAG_B_MANY = 0x4,
REG_PINFLAG_B_OUTPUT = 0x8
} REG_PINFLAG;
Describes the state of the stream and indicates how to proceed.
enum StreamControlState {
STREAM_FLOWING,
STREAM_DISCARDING,
STREAM_RECHECK
};
CBase
Specifies the frequency of a TV tuner (Cable or Antenna).
typedef enum
{
TunerInputCable,
TunerInputAntenna
} TunerInputType;
Specifies a dialog box that might exist in a Video for Windows capture driver.
typedef enum {
VfwCaptureDialog_Source = 1,
VfwCaptureDialog_Format = 2,
VfwCaptureDialog_Display = 4
} VfwCaptureDialogs;
The IAMVfwCaptureDialogs interface uses this enumerated data type.
Specifies a dialog box that might exist in a Video for Windows compression (codec) driver.
typedef enum {
VfwCompressDialog_Config = 1,
VfwCompressDialog_About = 2
} VfwCompressDialogs;
The IAMVfwCompressDialogs interface uses this enumerated data type.
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