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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/cast/test/utility/video_utility.h"
#include <math.h>
#include <cstdio>
#include "base/rand_util.h"
#include "third_party/libyuv/include/libyuv/compare.h"
#include "ui/gfx/geometry/size.h"
namespace media {
namespace cast {
double I420PSNR(const scoped_refptr<media::VideoFrame>& frame1,
const scoped_refptr<media::VideoFrame>& frame2) {
if (frame1->coded_size().width() != frame2->coded_size().width() ||
frame1->coded_size().height() != frame2->coded_size().height())
return -1;
return libyuv::I420Psnr(frame1->data(VideoFrame::kYPlane),
frame1->stride(VideoFrame::kYPlane),
frame1->data(VideoFrame::kUPlane),
frame1->stride(VideoFrame::kUPlane),
frame1->data(VideoFrame::kVPlane),
frame1->stride(VideoFrame::kVPlane),
frame2->data(VideoFrame::kYPlane),
frame2->stride(VideoFrame::kYPlane),
frame2->data(VideoFrame::kUPlane),
frame2->stride(VideoFrame::kUPlane),
frame2->data(VideoFrame::kVPlane),
frame2->stride(VideoFrame::kVPlane),
frame1->coded_size().width(),
frame1->coded_size().height());
}
double I420SSIM(const scoped_refptr<media::VideoFrame>& frame1,
const scoped_refptr<media::VideoFrame>& frame2) {
if (frame1->coded_size().width() != frame2->coded_size().width() ||
frame1->coded_size().height() != frame2->coded_size().height())
return -1;
return libyuv::I420Ssim(frame1->data(VideoFrame::kYPlane),
frame1->stride(VideoFrame::kYPlane),
frame1->data(VideoFrame::kUPlane),
frame1->stride(VideoFrame::kUPlane),
frame1->data(VideoFrame::kVPlane),
frame1->stride(VideoFrame::kVPlane),
frame2->data(VideoFrame::kYPlane),
frame2->stride(VideoFrame::kYPlane),
frame2->data(VideoFrame::kUPlane),
frame2->stride(VideoFrame::kUPlane),
frame2->data(VideoFrame::kVPlane),
frame2->stride(VideoFrame::kVPlane),
frame1->coded_size().width(),
frame1->coded_size().height());
}
void PopulateVideoFrame(VideoFrame* frame, int start_value) {
int height = frame->coded_size().height();
int stride_y = frame->stride(VideoFrame::kYPlane);
int stride_u = frame->stride(VideoFrame::kUPlane);
int stride_v = frame->stride(VideoFrame::kVPlane);
int half_height = (height + 1) / 2;
uint8* y_plane = frame->data(VideoFrame::kYPlane);
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
// Set Y.
for (int j = 0; j < height; ++j) {
for (int i = 0; i < stride_y; ++i) {
*y_plane = static_cast<uint8>(start_value + i + j);
++y_plane;
}
}
// Set U.
for (int j = 0; j < half_height; ++j) {
for (int i = 0; i < stride_u; ++i) {
*u_plane = static_cast<uint8>(start_value + i + j);
++u_plane;
}
}
// Set V.
for (int j = 0; j < half_height; ++j) {
for (int i = 0; i < stride_v; ++i) {
*v_plane = static_cast<uint8>(start_value + i + j);
++v_plane;
}
}
}
void PopulateVideoFrameWithNoise(VideoFrame* frame) {
int height = frame->coded_size().height();
int stride_y = frame->stride(VideoFrame::kYPlane);
int stride_u = frame->stride(VideoFrame::kUPlane);
int stride_v = frame->stride(VideoFrame::kVPlane);
int half_height = (height + 1) / 2;
uint8* y_plane = frame->data(VideoFrame::kYPlane);
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
base::RandBytes(y_plane, height * stride_y);
base::RandBytes(u_plane, half_height * stride_u);
base::RandBytes(v_plane, half_height * stride_v);
}
bool PopulateVideoFrameFromFile(VideoFrame* frame, FILE* video_file) {
int width = frame->coded_size().width();
int height = frame->coded_size().height();
int half_width = (width + 1) / 2;
int half_height = (height + 1) / 2;
size_t frame_size = width * height + 2 * half_width * half_height;
uint8* y_plane = frame->data(VideoFrame::kYPlane);
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
uint8* raw_data = new uint8[frame_size];
size_t count = fread(raw_data, 1, frame_size, video_file);
if (count != frame_size)
return false;
memcpy(y_plane, raw_data, width * height);
memcpy(u_plane, raw_data + width * height, half_width * half_height);
memcpy(v_plane,
raw_data + width * height + half_width * half_height,
half_width * half_height);
delete[] raw_data;
return true;
}
} // namespace cast
} // namespace media
|