VMRVideoDesc structure (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
This topic applies to Windows XP Service Pack 1 or later.
The VMRVideoDesc
structure describes a video stream to be deinterlaced.
Syntax
typedef struct _VMRVideoDesc {
DWORD dwSize;
DWORD dwSampleWidth;
DWORD dwSampleHeight;
BOOL SingleFieldPerSample;
DWORD dwFourCC;
VMRFrequency InputSampleFreq;
VMRFrequency OutputFrameFreq;
} VMRVideoDesc;
Members
dwSize
Size of the structure, in bytes.
dwSampleWidth
Width of the video to be deinterlaced, in pixels.
dwSampleHeight
Height of the video to be deinterlaced, in pixels.
SingleFieldPerSample
Specifies one of the following values.
Value | Meaning |
---|---|
|
Each field is delivered as a separate sample. |
|
Pairs of fields are combined into single samples. |
dwFourCC
Specifies a FOURCC code. Valid values include NV12, YV12, YUY2, UYVY, IMC1, IMC2, IMC3 and IMC4
InputSampleFreq
A [VMRFrequency](/windows/win32/api/strmif/ns-strmif-vmrfrequency structure that specifies the input frequency. For NTSC TV, the frequency would be expressed as 30,000:1001.
OutputFrameFreq
A VMRFrequency structure that specifies the output frequency. For NTSC TV, the frequency would be expressed as 60,000:1001.
Requirements
Requirement | Value |
---|---|
Header | strmif.h (include Dshow.h) |