1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "daudio_latency_test.h"
17
18 #include <ctime>
19 #include <string>
20
21 #include "daudio_errorcode.h"
22 #include "daudio_log.h"
23 #include "daudio_util.h"
24
25 #undef DH_LOG_TAG
26 #define DH_LOG_TAG "DAudioLatencyTest"
27 namespace OHOS {
28 namespace DistributedHardware {
29 IMPLEMENT_SINGLE_INSTANCE(DAudioLatencyTest);
30 constexpr int32_t MAXSIZE = 8192;
31
DAudioLatencyTest()32 DAudioLatencyTest::DAudioLatencyTest()
33 {
34 DHLOGI("DAudioLatencyTest constructed.");
35 }
36
~DAudioLatencyTest()37 DAudioLatencyTest::~DAudioLatencyTest()
38 {
39 DHLOGI("DAudioLatencyTest deconstructed.");
40 }
41
AddPlayTime(const int64_t playBeepTime)42 int32_t DAudioLatencyTest::AddPlayTime(const int64_t playBeepTime)
43 {
44 if (GetNowTimeUs() - lastPlayTime_ <= TWO_BEEP_TIME_INTERVAL) {
45 DHLOGE("Catch play high frame, but not in %{public}d ms.", TWO_BEEP_TIME_INTERVAL);
46 return ERR_DH_AUDIO_FAILED;
47 }
48 DHLOGI("Catch play high frame, playTime: %{public}" PRId64, playBeepTime);
49 playBeepTime_.push_back(playBeepTime);
50 lastPlayTime_ = GetNowTimeUs();
51 return DH_SUCCESS;
52 }
53
AddRecordTime(const int64_t recordBeepTime)54 int32_t DAudioLatencyTest::AddRecordTime(const int64_t recordBeepTime)
55 {
56 if (captureBeepTime_.size() >= playBeepTime_.size()) {
57 DHLOGE("Catch record high frame size error, capturesize %{public}zu, playsize %{public}zu.",
58 captureBeepTime_.size(), playBeepTime_.size());
59 return ERR_DH_AUDIO_BAD_VALUE;
60 }
61 if (GetNowTimeUs() - lastRecordTime_ <= TWO_BEEP_TIME_INTERVAL) {
62 DHLOGE("Catch record high frame, but not in %{public}d ms.", TWO_BEEP_TIME_INTERVAL);
63 return ERR_DH_AUDIO_FAILED;
64 }
65 DHLOGI("Catch record high frame, recordTime: %{public}" PRId64, recordBeepTime);
66 captureBeepTime_.push_back(recordBeepTime);
67 lastRecordTime_ = GetNowTimeUs();
68 return DH_SUCCESS;
69 }
70
IsFrameHigh(const int16_t * audioData,const int32_t size,int32_t threshhold)71 bool DAudioLatencyTest::IsFrameHigh(const int16_t *audioData, const int32_t size, int32_t threshhold)
72 {
73 if (size > MAXSIZE) {
74 DHLOGI("size=%{public}d is over range", size);
75 return false;
76 }
77 int32_t max = 0;
78 for (int32_t i = 0; i < size; i++) {
79 int16_t f = abs(audioData[i]);
80 if (f > max) {
81 max = f;
82 }
83 }
84 return (max >= threshhold) ? true : false;
85 }
86
RecordBeepTime(const uint8_t * base,const int32_t & sizePerFrame,bool & status)87 int64_t DAudioLatencyTest::RecordBeepTime(const uint8_t *base, const int32_t &sizePerFrame, bool &status)
88 {
89 int32_t threshhold = BEEP_THRESHHOLD;
90 bool isHigh = IsFrameHigh(reinterpret_cast<int16_t *>(const_cast<uint8_t *>(base)),
91 sizePerFrame / sizeof(int16_t), threshhold);
92 if (isHigh && status) {
93 status = false;
94 return GetNowTimeUs();
95 } else if (!isHigh) {
96 status = true;
97 }
98 return 0;
99 }
100
ComputeLatency()101 int32_t DAudioLatencyTest::ComputeLatency()
102 {
103 DHLOGD("Compute latency time.");
104 int32_t playSize = static_cast<int32_t>(playBeepTime_.size());
105 int32_t captureSize = static_cast<int32_t>(captureBeepTime_.size());
106 if (playSize == 0 || playBeepTime_.size() != captureBeepTime_.size()) {
107 DHLOGE("Record num is not equal %{public}d: %{public}d", playSize, captureSize);
108 return -1;
109 }
110 DHLOGI("Record %{public}d times frame high.", playSize);
111 int32_t sum = 0;
112 for (int32_t i = 0; i < playSize; i++) {
113 DHLOGI("Send: %{public}" PRId64", Received: %{public}" PRId64, playBeepTime_[i], captureBeepTime_[i]);
114 DHLOGI("Time is: %{public}" PRId64" ms.", (captureBeepTime_[i] - playBeepTime_[i]) / US_PER_MS);
115 sum += captureBeepTime_[i] - playBeepTime_[i];
116 }
117 DHLOGI("Audio latency in average is: %{public}d us.", sum / playSize);
118 playBeepTime_.clear();
119 captureBeepTime_.clear();
120 return sum / playSize;
121 }
122 } // namespace DistributedHardware
123 } // namespace OHOS
124