blob: a304fb43a356ed175d804612444923235b752e2a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/**************************************************************************
A/V Stream Camera Sample
Copyright (c) 2014, Microsoft Corporation.
File:
YUY2Synthesizer.h
Abstract:
This file contains the definition of CYUY2Synthesizer.
CYUY2Synthesizer is derived from CYUVSynthesizer. An image
synthesizer for YUY2 format. It uses the YUV color space and defines
a Commit() function.
YUY2 is a 4:2:2 format that uses a single plane that decimates chroma
samples on the x axis with an effective bit rate of 16 bits per pixel.
A plane is an array of rows. Rows consist of pairs of pixels in the
sequence: Y0|U|Y1|V.
The synthesizer stores the YUV information in 32 bit format internally
for speed, accuracy and simplicity. The Commit function does the
format conversion.
History:
created 4/14/2014
**************************************************************************/
class CYUY2Synthesizer : public CYUVSynthesizer
{
public:
//
// DEFAULT CONSTRUCTOR
//
CYUY2Synthesizer (
ULONG Width=0,
ULONG Height=0
) :
CYUVSynthesizer("YUY2", Width, Height)
{
NT_ASSERT( ( Width % 2 ) == 0 );
m_OutputStride = Width * sizeof(WORD);
}
//
// Commit
//
// Copy (and reformat, if necessary) pixels from the internal scratch
// buffer. If the output format decimates chrominance, do it here.
//
virtual
_Success_(return > 0)
ULONG
Commit(
_Out_writes_bytes_(Size)
PUCHAR Buffer,
_In_ ULONG Size,
_In_ ULONG Stride
);
};
|
