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Describes the bitmap and color information for a video image, including interlace, copy protection, and pixel aspect ratio information.
typedef struct tagVIDEOINFOHEADER2 {
RECT
rcSource
;
RECT
rcTarget
;
DWORD
dwBitRate
;
DWORD
dwBitErrorRate
;
REFERENCE_TIME
AvgTimePerFrame
;
DWORD
dwInterlaceFlags
;
DWORD
dwCopyProtectFlags
;
DWORD
dwPictAspectRatioX
;
DWORD
dwPictAspectRatioY
;
DWORD
dwReserved1
;
DWORD
dwReserved2
;
BITMAPINFOHEADER
bmiHeader
;
} VIDEOINFOHEADER2;
Members
- rcSource
- RECT structure that specifies what part of the source stream should be used to fill the destination buffer. The renderers can use this field to ask the decoders to stretch or clip. See Source and Target Rectangles in Video Renderers for examples of how this member works.
- rcTarget
- RECT structure that specifies that specifies what part of the destination buffer should be used. See Source and Target Rectangles in Video Renderers for examples of how this member works.
- dwBitRate
- DWORD value that specifies the video stream's approximate data rate.
- dwBitErrorRate
- DWORD value that specifies the video stream's data error rate.
- AvgTimePerFrame
- REFERENCE_TIMEvalue that specifies the video frame's average display time, in milliseconds.
- dwInterlaceFlags
- Flag set by one of the following values.
AMINTERLACE_IsInterlaced Indicates an interlace stream. If 0, other interlace bits are irrelevant. AMINTERLACE_1FieldPerSample Indicates one field per media sample. If 0, indicates 2 fields per media sample. AMINTERLACE_Field1First Indicates Field 1 is first. If 0, indicates Field 2 is first. Top field in PAL is field 1, top field in NTSC is field 2. AMINTERLACE_UNUSED Unused. AMINTERLACE_FieldPatternMask Bits used to indicate field pattern. AMINTERLACE_FieldPatField1Only Stream never contains a Field 2. AMINTERLACE_FieldPatField2Only Stream never contains a Field 1. AMINTERLACE_FieldPatBothRegular There will be a Field 2 for every Field 1. AMINTERLACE_FieldPatBothIrregular Random pattern of Field 1s and Field 2s. AMINTERLACE_DisplayModeMask Bits used to indicate display mode. AMINTERLACE_DisplayModeBobOnly Indicates Bob display mode only. AMINTERLACE_DisplayModeWeaveOnly Indicates Weave display mode only. AMINTERLACE_DisplayModeBobOrWeave Indicates either Bob or Weave display mode. Set undefined flags to zero or connection should be rejected.
- dwCopyProtectFlags
- Flag set with the AMCOPYPROTECT_RestrictDuplication value to indicate duplication of stream should be restricted. If undefined, specify zero or connection should be rejected.
- dwPictAspectRatioX
- The X dimension of picture aspect ratio, for example, 16 for 16 � 9 display (inches by inches, not pixels by pixels).
- dwPictAspectRatioY
- The Y dimension of picture aspect ratio, for example, 9 for 16 � 9 display (inches by inches, not pixels by pixels).
- dwReserved1
- Reserved for future use. Must be zero; reject connection otherwise
- dwReserved2
- Reserved for future use. Must be zero; reject connection otherwise
- bmiHeader
- Win32 BITMAPINFOHEADER structure that contains color and
dimension information for the video image bitmap.