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
|
// Copyright (c) 2013 The Chromium OS 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 <stdio.h>
#include <stdlib.h>
#include <gtest/gtest.h>
extern "C" {
#include "cras_audio_area.h"
#include "cras_iodev.h"
#include "cras_loopback_iodev.h"
#include "cras_shm.h"
#include "cras_types.h"
}
namespace {
static const unsigned int kBufferFrames = 16384;
static const unsigned int kFrameBytes = 4;
static const unsigned int kBufferSize = kBufferFrames * kFrameBytes;
static cras_audio_area *dummy_audio_area;
class LoopBackTestSuite : public testing::Test{
protected:
virtual void SetUp() {
for (unsigned int i = 0; i < kBufferSize; i++) {
buf_[i] = rand();
}
dev_ = loopback_iodev_create(CRAS_STREAM_POST_MIX_PRE_DSP);
fmt_.frame_rate = 44100;
fmt_.num_channels = 2;
fmt_.format = SND_PCM_FORMAT_S16_LE;
dev_->format = &fmt_;
dummy_audio_area = (cras_audio_area*)calloc(1,
sizeof(*dummy_audio_area) + sizeof(cras_channel_area) * 2);
}
virtual void TearDown() {
loopback_iodev_destroy(dev_);
free(dummy_audio_area);
}
uint8_t buf_[kBufferSize];
unsigned int frame_bytes;
struct cras_iodev *dev_;
struct cras_audio_format fmt_;
};
TEST_F(LoopBackTestSuite, CopyReturnZero) {
// Test that no frames are returned until the buffer level is met.
unsigned int frames = 200;
int rc = dev_->open_dev(dev_);
EXPECT_EQ(0, rc);
rc = loopback_iodev_add_audio(dev_, buf_, frames);
EXPECT_EQ(0, rc);
cras_audio_area *dev_area;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(0, frames);
EXPECT_EQ(0, dev_area->frames);
rc = dev_->close_dev(dev_);
EXPECT_EQ(0, rc);
}
TEST_F(LoopBackTestSuite, SimpleCopy) {
// Fill with the minimum pore-buffer
unsigned int frames = 200;
int rc = dev_->open_dev(dev_);
EXPECT_EQ(0, rc);
rc = loopback_iodev_add_audio(dev_, buf_, 4096);
EXPECT_EQ(0, rc);
cras_audio_area *dev_area;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(200, frames);
EXPECT_EQ(0, memcmp(buf_, dev_area->channels[0].buf, 200 * kFrameBytes));
dev_->put_buffer(dev_, frames);
frames = 4000;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(4096 - 200, frames);
EXPECT_EQ(0, memcmp(buf_ + 200 * kFrameBytes,
dev_area->channels[0].buf, (4096 - 200) * kFrameBytes));
dev_->put_buffer(dev_, frames);
rc = dev_->close_dev(dev_);
EXPECT_EQ(0, rc);
}
TEST_F(LoopBackTestSuite, WrapCopy) {
// Fill with the minimum pore-buffer
unsigned int frames = 8000;
int rc = dev_->open_dev(dev_);
EXPECT_EQ(0, rc);
rc = loopback_iodev_add_audio(dev_, buf_, 8000);
EXPECT_EQ(0, rc);
cras_audio_area *dev_area;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(8000, frames);
EXPECT_EQ(0, memcmp(buf_, dev_area->channels[0].buf, 200 * kFrameBytes));
dev_->put_buffer(dev_, frames);
rc = loopback_iodev_add_audio(dev_, buf_, 8000);
EXPECT_EQ(0, rc);
frames = 8000;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(192, frames);
EXPECT_EQ(0, memcmp(buf_, dev_area->channels[0].buf, 192 * kFrameBytes));
dev_->put_buffer(dev_, frames);
EXPECT_EQ(0, rc);
frames = 8000;
rc = dev_->get_buffer(dev_, &dev_area, &frames);
EXPECT_EQ(0, rc);
EXPECT_EQ(8000 - 192, frames);
EXPECT_EQ(0, memcmp(buf_ + 192 * kFrameBytes,
dev_area->channels[0].buf, (8000 - 192) * kFrameBytes));
dev_->put_buffer(dev_, frames);
rc = dev_->close_dev(dev_);
EXPECT_EQ(0, rc);
}
/* Stubs */
extern "C" {
int cras_iodev_list_add_input(struct cras_iodev *input) {
return 0;
}
int cras_iodev_list_rm_input(struct cras_iodev *dev) {
return 0;
}
void cras_iodev_free_format(struct cras_iodev *iodev)
{
}
void cras_iodev_init_audio_area(struct cras_iodev *iodev,
int num_channels) {
iodev->area = dummy_audio_area;
}
void cras_iodev_free_audio_area(struct cras_iodev *iodev) {
}
void cras_audio_area_config_buf_pointers(struct cras_audio_area *area,
const struct cras_audio_format *fmt,
uint8_t *base_buffer)
{
dummy_audio_area->channels[0].buf = base_buffer;
}
} // extern "C"
} // namespace
int main(int argc, char **argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
|
