KS_MPEGVIDEOINFO2 structure (ksmedia.h)
The KS_MPEGVIDEOINFO2 structure describes an MPEG-2 video stream, including bob or weave settings.
Syntax
typedef struct tagKS_MPEGVIDEOINFO2 {
KS_VIDEOINFOHEADER2 hdr;
DWORD dwStartTimeCode;
DWORD cbSequenceHeader;
DWORD dwProfile;
DWORD dwLevel;
DWORD dwFlags;
DWORD bSequenceHeader[1];
} KS_MPEGVIDEOINFO2, *PKS_MPEGVIDEOINFO2;
Members
hdr
Specifies a KS_VIDEOINFOHEADER2 structure that describes the details of the video stream.
dwStartTimeCode
A 25-bit "group-of-pictures" time code at the start of data (not used for DVD).
cbSequenceHeader
The length of the bSequenceHeader member, in bytes (zero for DVD).
dwProfile
Specifies the MPEG-2 profile. This member must be one of the values from the KS_MPEG2Profile enumeration.
dwLevel
Specifies the MPEG-2 level. This member must be one of the values from the KS_MPEG2Level enumeration.
dwFlags
Specifies the flags that indicate preferences. This member can be set to one or more (logical OR) values that are defined in ksmedia.h.
| Flag | Meaning |
|---|---|
| KS_MPEG2_DoPanScan | If set, the MPEG-2 video decoder should crop the output image based on pan-scan vectors in the picture display extension and change the picture aspect ratio accordingly. |
| KS_MPEG2_DVDLine21Field1 | If set, the MPEG-2 decoder must be able to produce an output pin for DVD-style closed caption data found in the GOP layer of Field 1. |
| KS_MPEG2_DVDLine21Field2 | If set, the MPEG-2 decoder must be able to produce an output pin for DVD-style closed caption data found in the GOP layer of Field 2. |
| KS_MPEG2_SourceIsLetterboxed | If set, indicates that black bars have been encoded in the top and bottom of the video. |
| KS_MPEG2_FilmCameraMode | If set, indicates "film mode" used for 625/50 content. If cleared, indicates that "camera mode" was used. |
| KS_MPEG2_LetterboxAnalogOut | If set, and the stream is sent to an analog output, then the stream should be letterboxed. Streams sent to VGA should be letterboxed only by renderers. |
| KS_MPEG2_DSS_UserData | If set, the MPEG-2 decoder must process DSS-style user data. |
| KS_MPEG2_DVB_UserData | If set, the MPEG-2 decoder must process DVB-style user data. |
| KS_MPEG2_27MHzTimebase | If set, the PTS and DTS timestamps advance at 27 MHz rather than 90 kHz. |
bSequenceHeader[1]
The length of the bSequenceHeader member, in bytes (zero for DVD).
Requirements
| Requirement | Value |
|---|---|
| Header | ksmedia.h (include Ksmedia.h) |