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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
// Copyright (c) 2012 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/base/video_frame.h"
#include "base/format_macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/stringprintf.h"
#include "media/base/buffers.h"
#include "media/base/yuv_convert.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
using base::MD5DigestToBase16;
// Helper function that initializes a YV12 frame with white and black scan
// lines based on the |white_to_black| parameter. If 0, then the entire
// frame will be black, if 1 then the entire frame will be white.
void InitializeYV12Frame(VideoFrame* frame, double white_to_black) {
EXPECT_EQ(VideoFrame::YV12, frame->format());
int first_black_row = static_cast<int>(frame->coded_size().height() *
white_to_black);
uint8* y_plane = frame->data(VideoFrame::kYPlane);
for (int row = 0; row < frame->coded_size().height(); ++row) {
int color = (row < first_black_row) ? 0xFF : 0x00;
memset(y_plane, color, frame->stride(VideoFrame::kYPlane));
y_plane += frame->stride(VideoFrame::kYPlane);
}
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
for (int row = 0; row < frame->coded_size().height(); row += 2) {
memset(u_plane, 0x80, frame->stride(VideoFrame::kUPlane));
memset(v_plane, 0x80, frame->stride(VideoFrame::kVPlane));
u_plane += frame->stride(VideoFrame::kUPlane);
v_plane += frame->stride(VideoFrame::kVPlane);
}
}
// Given a |yv12_frame| this method converts the YV12 frame to RGBA and
// makes sure that all the pixels of the RBG frame equal |expect_rgb_color|.
void ExpectFrameColor(media::VideoFrame* yv12_frame, uint32 expect_rgb_color) {
ASSERT_EQ(VideoFrame::YV12, yv12_frame->format());
ASSERT_EQ(yv12_frame->stride(VideoFrame::kUPlane),
yv12_frame->stride(VideoFrame::kVPlane));
scoped_refptr<media::VideoFrame> rgb_frame;
rgb_frame = media::VideoFrame::CreateFrame(VideoFrame::RGB32,
yv12_frame->coded_size(),
yv12_frame->visible_rect(),
yv12_frame->natural_size(),
yv12_frame->GetTimestamp());
ASSERT_EQ(yv12_frame->coded_size().width(),
rgb_frame->coded_size().width());
ASSERT_EQ(yv12_frame->coded_size().height(),
rgb_frame->coded_size().height());
media::ConvertYUVToRGB32(yv12_frame->data(VideoFrame::kYPlane),
yv12_frame->data(VideoFrame::kUPlane),
yv12_frame->data(VideoFrame::kVPlane),
rgb_frame->data(VideoFrame::kRGBPlane),
rgb_frame->coded_size().width(),
rgb_frame->coded_size().height(),
yv12_frame->stride(VideoFrame::kYPlane),
yv12_frame->stride(VideoFrame::kUPlane),
rgb_frame->stride(VideoFrame::kRGBPlane),
media::YV12);
for (int row = 0; row < rgb_frame->coded_size().height(); ++row) {
uint32* rgb_row_data = reinterpret_cast<uint32*>(
rgb_frame->data(VideoFrame::kRGBPlane) +
(rgb_frame->stride(VideoFrame::kRGBPlane) * row));
for (int col = 0; col < rgb_frame->coded_size().width(); ++col) {
SCOPED_TRACE(
base::StringPrintf("Checking (%d, %d)", row, col));
EXPECT_EQ(expect_rgb_color, rgb_row_data[col]);
}
}
}
// Fill each plane to its reported extents and verify accessors report non
// zero values. Additionally, for the first plane verify the rows and
// row_bytes values are correct.
void ExpectFrameExtents(VideoFrame::Format format, int planes,
int bytes_per_pixel, const char* expected_hash) {
const unsigned char kFillByte = 0x80;
const int kWidth = 61;
const int kHeight = 31;
const base::TimeDelta kTimestamp = base::TimeDelta::FromMicroseconds(1337);
gfx::Size size(kWidth, kHeight);
scoped_refptr<VideoFrame> frame = VideoFrame::CreateFrame(
format, size, gfx::Rect(size), size, kTimestamp);
ASSERT_TRUE(frame.get());
for(int plane = 0; plane < planes; plane++) {
SCOPED_TRACE(base::StringPrintf("Checking plane %d", plane));
EXPECT_TRUE(frame->data(plane));
EXPECT_TRUE(frame->stride(plane));
EXPECT_TRUE(frame->rows(plane));
EXPECT_TRUE(frame->row_bytes(plane));
if (plane == 0) {
EXPECT_EQ(frame->rows(plane), kHeight);
EXPECT_EQ(frame->row_bytes(plane), kWidth * bytes_per_pixel);
}
memset(frame->data(plane), kFillByte,
frame->stride(plane) * frame->rows(plane));
}
base::MD5Context context;
base::MD5Init(&context);
frame->HashFrameForTesting(&context);
base::MD5Digest digest;
base::MD5Final(&digest, &context);
EXPECT_EQ(MD5DigestToBase16(digest), expected_hash);
}
TEST(VideoFrame, CreateFrame) {
const int kWidth = 64;
const int kHeight = 48;
const base::TimeDelta kTimestamp = base::TimeDelta::FromMicroseconds(1337);
// Create a YV12 Video Frame.
gfx::Size size(kWidth, kHeight);
scoped_refptr<media::VideoFrame> frame =
VideoFrame::CreateFrame(media::VideoFrame::YV12, size, gfx::Rect(size),
size, kTimestamp);
ASSERT_TRUE(frame.get());
// Test VideoFrame implementation.
EXPECT_EQ(media::VideoFrame::YV12, frame->format());
{
SCOPED_TRACE("");
InitializeYV12Frame(frame.get(), 0.0f);
ExpectFrameColor(frame.get(), 0xFF000000);
}
base::MD5Digest digest;
base::MD5Context context;
base::MD5Init(&context);
frame->HashFrameForTesting(&context);
base::MD5Final(&digest, &context);
EXPECT_EQ(MD5DigestToBase16(digest), "9065c841d9fca49186ef8b4ef547e79b");
{
SCOPED_TRACE("");
InitializeYV12Frame(frame.get(), 1.0f);
ExpectFrameColor(frame.get(), 0xFFFFFFFF);
}
base::MD5Init(&context);
frame->HashFrameForTesting(&context);
base::MD5Final(&digest, &context);
EXPECT_EQ(MD5DigestToBase16(digest), "911991d51438ad2e1a40ed5f6fc7c796");
// Test an empty frame.
frame = VideoFrame::CreateEmptyFrame();
EXPECT_TRUE(frame->IsEndOfStream());
}
TEST(VideoFrame, CreateBlackFrame) {
const int kWidth = 2;
const int kHeight = 2;
const uint8 kExpectedYRow[] = { 0, 0 };
const uint8 kExpectedUVRow[] = { 128 };
scoped_refptr<media::VideoFrame> frame =
VideoFrame::CreateBlackFrame(gfx::Size(kWidth, kHeight));
ASSERT_TRUE(frame.get());
// Test basic properties.
EXPECT_EQ(0, frame->GetTimestamp().InMicroseconds());
EXPECT_FALSE(frame->IsEndOfStream());
// Test |frame| properties.
EXPECT_EQ(VideoFrame::YV12, frame->format());
EXPECT_EQ(kWidth, frame->coded_size().width());
EXPECT_EQ(kHeight, frame->coded_size().height());
// Test frames themselves.
uint8* y_plane = frame->data(VideoFrame::kYPlane);
for (int y = 0; y < frame->coded_size().height(); ++y) {
EXPECT_EQ(0, memcmp(kExpectedYRow, y_plane, arraysize(kExpectedYRow)));
y_plane += frame->stride(VideoFrame::kYPlane);
}
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
for (int y = 0; y < frame->coded_size().height() / 2; ++y) {
EXPECT_EQ(0, memcmp(kExpectedUVRow, u_plane, arraysize(kExpectedUVRow)));
EXPECT_EQ(0, memcmp(kExpectedUVRow, v_plane, arraysize(kExpectedUVRow)));
u_plane += frame->stride(VideoFrame::kUPlane);
v_plane += frame->stride(VideoFrame::kVPlane);
}
}
// Ensure each frame is properly sized and allocated. Will trigger OOB reads
// and writes as well as incorrect frame hashes otherwise.
TEST(VideoFrame, CheckFrameExtents) {
// Each call consists of a VideoFrame::Format, # of planes, bytes per pixel,
// and the expected hash of all planes if filled with kFillByte (defined in
// ExpectFrameExtents).
ExpectFrameExtents(
VideoFrame::RGB32, 1, 4, "de6d3d567e282f6a38d478f04fc81fb0");
ExpectFrameExtents(
VideoFrame::YV12, 3, 1, "71113bdfd4c0de6cf62f48fb74f7a0b1");
ExpectFrameExtents(
VideoFrame::YV16, 3, 1, "9bb99ac3ff350644ebff4d28dc01b461");
}
} // namespace media
|
