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39
40#ifndef QVIDEOFRAMECONVERSIONHELPER_P_H
41#define QVIDEOFRAMECONVERSIONHELPER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <qvideoframe.h>
55#include <private/qsimd_p.h>
56
57typedef void (QT_FASTCALL *VideoFrameConvertFunc)(const QVideoFrame &frame, uchar *output);
58
59inline quint32 qConvertBGRA32ToARGB32(quint32 bgra)
60{
61 return (((bgra & 0xFF000000) >> 24)
62 | ((bgra & 0x00FF0000) >> 8)
63 | ((bgra & 0x0000FF00) << 8)
64 | ((bgra & 0x000000FF) << 24));
65}
66
67inline quint32 qConvertBGR24ToARGB32(const uchar *bgr)
68{
69 return 0xFF000000 | bgr[0] | bgr[1] << 8 | bgr[2] << 16;
70}
71
72inline quint32 qConvertBGR565ToARGB32(quint16 bgr)
73{
74 return 0xff000000
75 | ((((bgr) >> 8) & 0xf8) | (((bgr) >> 13) & 0x7))
76 | ((((bgr) << 5) & 0xfc00) | (((bgr) >> 1) & 0x300))
77 | ((((bgr) << 19) & 0xf80000) | (((bgr) << 14) & 0x70000));
78}
79
80inline quint32 qConvertBGR555ToARGB32(quint16 bgr)
81{
82 return 0xff000000
83 | ((((bgr) >> 7) & 0xf8) | (((bgr) >> 12) & 0x7))
84 | ((((bgr) << 6) & 0xf800) | (((bgr) << 1) & 0x700))
85 | ((((bgr) << 19) & 0xf80000) | (((bgr) << 11) & 0x70000));
86}
87
88#define FETCH_INFO_PACKED(frame) \
89 const uchar *src = frame.bits(); \
90 int stride = frame.bytesPerLine(); \
91 int width = frame.width(); \
92 int height = frame.height();
93
94#define FETCH_INFO_BIPLANAR(frame) \
95 const uchar *plane1 = frame.bits(0); \
96 const uchar *plane2 = frame.bits(1); \
97 int plane1Stride = frame.bytesPerLine(0); \
98 int plane2Stride = frame.bytesPerLine(1); \
99 int width = frame.width(); \
100 int height = frame.height();
101
102#define FETCH_INFO_TRIPLANAR(frame) \
103 const uchar *plane1 = frame.bits(0); \
104 const uchar *plane2 = frame.bits(1); \
105 const uchar *plane3 = frame.bits(2); \
106 int plane1Stride = frame.bytesPerLine(0); \
107 int plane2Stride = frame.bytesPerLine(1); \
108 int plane3Stride = frame.bytesPerLine(2); \
109 int width = frame.width(); \
110 int height = frame.height(); \
111
112#define MERGE_LOOPS(width, height, stride, bpp) \
113 if (stride == width * bpp) { \
114 width *= height; \
115 height = 1; \
116 stride = 0; \
117 }
118
119#define ALIGN(boundary, ptr, x, length) \
120 for (; ((reinterpret_cast<qintptr>(ptr) & (boundary - 1)) != 0) && x < length; ++x)
121
122#endif // QVIDEOFRAMECONVERSIONHELPER_P_H
123
124

source code of qtmultimedia/src/multimedia/video/qvideoframeconversionhelper_p.h