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
|
/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/audio_processing/transient/transient_detector.h"
#include <sstream>
#include <string>
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/base/scoped_ptr.h"
#include "webrtc/modules/audio_processing/transient/common.h"
#include "webrtc/modules/audio_processing/transient/file_utils.h"
#include "webrtc/system_wrappers/include/file_wrapper.h"
#include "webrtc/test/testsupport/fileutils.h"
#include "webrtc/test/testsupport/gtest_disable.h"
#include "webrtc/typedefs.h"
namespace webrtc {
static const int kSampleRatesHz[] = {ts::kSampleRate8kHz,
ts::kSampleRate16kHz,
ts::kSampleRate32kHz,
ts::kSampleRate48kHz};
static const size_t kNumberOfSampleRates =
sizeof(kSampleRatesHz) / sizeof(*kSampleRatesHz);
// This test is for the correctness of the transient detector.
// Checks the results comparing them with the ones stored in the detect files in
// the directory: resources/audio_processing/transient/
// The files contain all the results in double precision (Little endian).
// The audio files used with different sample rates are stored in the same
// directory.
TEST(TransientDetectorTest, DISABLED_ON_IOS(CorrectnessBasedOnFiles)) {
for (size_t i = 0; i < kNumberOfSampleRates; ++i) {
int sample_rate_hz = kSampleRatesHz[i];
// Prepare detect file.
std::stringstream detect_file_name;
detect_file_name << "audio_processing/transient/detect"
<< (sample_rate_hz / 1000) << "kHz";
rtc::scoped_ptr<FileWrapper> detect_file(FileWrapper::Create());
detect_file->OpenFile(
test::ResourcePath(detect_file_name.str(), "dat").c_str(),
true, // Read only.
false, // No loop.
false); // No text.
bool file_opened = detect_file->Open();
ASSERT_TRUE(file_opened) << "File could not be opened.\n"
<< detect_file_name.str().c_str();
// Prepare audio file.
std::stringstream audio_file_name;
audio_file_name << "audio_processing/transient/audio"
<< (sample_rate_hz / 1000) << "kHz";
rtc::scoped_ptr<FileWrapper> audio_file(FileWrapper::Create());
audio_file->OpenFile(
test::ResourcePath(audio_file_name.str(), "pcm").c_str(),
true, // Read only.
false, // No loop.
false); // No text.
// Create detector.
TransientDetector detector(sample_rate_hz);
const size_t buffer_length = sample_rate_hz * ts::kChunkSizeMs / 1000;
rtc::scoped_ptr<float[]> buffer(new float[buffer_length]);
const float kTolerance = 0.02f;
size_t frames_read = 0;
while (ReadInt16FromFileToFloatBuffer(audio_file.get(),
buffer_length,
buffer.get()) == buffer_length) {
++frames_read;
float detector_value =
detector.Detect(buffer.get(), buffer_length, NULL, 0);
double file_value;
ASSERT_EQ(1u, ReadDoubleBufferFromFile(detect_file.get(), 1, &file_value))
<< "Detect test file is malformed.\n";
// Compare results with data from the matlab test file.
EXPECT_NEAR(file_value, detector_value, kTolerance) << "Frame: "
<< frames_read;
}
detect_file->CloseFile();
audio_file->CloseFile();
}
}
} // namespace webrtc
|
