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
|
/*
* Copyright (c) 2011 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.
*/
#ifndef MODULES_AUDIO_CODING_TEST_TESTVADDTX_H_
#define MODULES_AUDIO_CODING_TEST_TESTVADDTX_H_
#include <memory>
#include "absl/strings/string_view.h"
#include "api/audio_codecs/audio_decoder_factory.h"
#include "api/audio_codecs/audio_encoder_factory.h"
#include "common_audio/vad/include/vad.h"
#include "modules/audio_coding/include/audio_coding_module.h"
#include "modules/audio_coding/include/audio_coding_module_typedefs.h"
#include "modules/audio_coding/test/Channel.h"
namespace webrtc {
// This class records the frame type, and delegates actual sending to the
// `next_` AudioPacketizationCallback.
class MonitoringAudioPacketizationCallback : public AudioPacketizationCallback {
public:
explicit MonitoringAudioPacketizationCallback(
AudioPacketizationCallback* next);
int32_t SendData(AudioFrameType frame_type,
uint8_t payload_type,
uint32_t timestamp,
const uint8_t* payload_data,
size_t payload_len_bytes,
int64_t absolute_capture_timestamp_ms) override;
void PrintStatistics();
void ResetStatistics();
void GetStatistics(uint32_t* stats);
private:
// 0 - kEmptyFrame
// 1 - kAudioFrameSpeech
// 2 - kAudioFrameCN
uint32_t counter_[3];
AudioPacketizationCallback* const next_;
};
// TestVadDtx is to verify that VAD/DTX perform as they should. It runs through
// an audio file and check if the occurrence of various packet types follows
// expectation. TestVadDtx needs its derived class to implement the Perform()
// to put the test together.
class TestVadDtx {
public:
static const int kOutputFreqHz = 16000;
TestVadDtx();
protected:
// Returns true iff CN was added.
bool RegisterCodec(const SdpAudioFormat& codec_format,
absl::optional<Vad::Aggressiveness> vad_mode);
// Encoding a file and see if the numbers that various packets occur follow
// the expectation. Saves result to a file.
// expects[x] means
// -1 : do not care,
// 0 : there have been no packets of type `x`,
// 1 : there have been packets of type `x`,
// with `x` indicates the following packet types
// 0 - kEmptyFrame
// 1 - kAudioFrameSpeech
// 2 - kAudioFrameCN
void Run(absl::string_view in_filename,
int frequency,
int channels,
absl::string_view out_filename,
bool append,
const int* expects);
const rtc::scoped_refptr<AudioEncoderFactory> encoder_factory_;
const rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
std::unique_ptr<AudioCodingModule> acm_send_;
std::unique_ptr<AudioCodingModule> acm_receive_;
std::unique_ptr<Channel> channel_;
std::unique_ptr<MonitoringAudioPacketizationCallback> packetization_callback_;
uint32_t time_stamp_ = 0x12345678;
};
// TestWebRtcVadDtx is to verify that the WebRTC VAD/DTX perform as they should.
class TestWebRtcVadDtx final : public TestVadDtx {
public:
TestWebRtcVadDtx();
void Perform();
private:
void RunTestCases(const SdpAudioFormat& codec_format);
void Test(bool new_outfile, bool expect_dtx_enabled);
int output_file_num_;
};
// TestOpusDtx is to verify that the Opus DTX performs as it should.
class TestOpusDtx final : public TestVadDtx {
public:
void Perform();
};
} // namespace webrtc
#endif // MODULES_AUDIO_CODING_TEST_TESTVADDTX_H_
|
