This phenomenon occurs intermittently and it bothers me for days. logs:
Local Date: 5月 15 2020 Local Time: 15:59:18
Build info: Mar 4 2020 21:32:13 r
INFO 15:59:18:056 18692; API call to enable video
INFO 15:59:18:057 18692; API call to enable local audio
INFO 15:59:18:057 18692; API call to join channel ‘10’ uid 0, SDK ver 2.9.1.46 build 110, device info ‘Gigabyte Technology Co., Ltd./B250M-D2VX-SI/x64-based PC/Windows 10.0.18363’
INFO 15:59:18:058 18692; API call to create data stream, id = 49153
DEBUG 15:59:18:058 18692; async_queue created: 00000218BB6A8F30
DEBUG 15:59:18:062 19632; api call executed: rtc.log_file err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; [asr] api call report, too frequently, cache item
INFO 15:59:18:062 19632; [rp] {“rtc.video.enabled”:true}
INFO 15:59:18:062 19632; API call to enable video
DEBUG 15:59:18:062 19632; api call executed: rtc.api.enable_video err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; api call executed: rtc.video.enabled err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; [asr] api call report, too frequently, cache item
INFO 15:59:18:062 19632; [rp] {“che.audio.enable.recording.device”:false}
DEBUG 15:59:18:062 19632; api call executed: che.audio.enable.recording.device err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; [asr] api call report, too frequently, cache item
INFO 15:59:18:062 19632; [rp] {“rtc.audio.mute_me”:true,“che.audio.mute_me”:true}
DEBUG 15:59:18:062 19632; api call executed: rtc.audio.mute_me err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; api call executed: che.audio.mute_me err 0, err msg is “no error”
DEBUG 15:59:18:062 19632; [asr] api call report, too frequently, cache item
INFO 15:59:18:062 19632; doStopLastmileProbeTest
INFO 15:59:18:062 19632; CALL BEGIN: appid:'3c*************************37’ cname:‘10’ info:’’ sid:‘F8E2FA1906CB454586901687560C93E8’
INFO 15:59:18:062 19632; addRef of media engine, ref=1
DEBUG 15:59:18:063 19632; async_queue created: 00000218AB6097B0
INFO 15:59:18:063 19632; [che] create chat engine, ctx:0000000000000000
INFO 15:59:18:063 19632; [MYDEBUG] large group call false
INFO 15:59:18:063 19632; ChatEngineParameterHelper::applyMediaEngineMode:
INFO 15:59:18:063 19632; applyMediaEngineMode(): Hardware encoding false Hardware decoding false
INFO 15:59:18:063 19632; engine git commit version:d5b9f90f7 and branch:(HEAD
INFO 15:59:18:064 19632; output: kPlatformDefaultAudio
INFO 15:59:18:064 19632; [WIN_CORE] +++++++Code block begins for checking CoreAudio properties++++++
INFO 15:59:18:066 19632; AgoraRTC::AudioDeviceNotificationWindows::AudioDeviceNotificationWindows created
INFO 15:59:18:069 19632; [WIN_CORE] ===================Render Devices Enumeration===================
INFO 15:59:18:069 19632; [WIN_CORE] #rendering endpoint devices (counting all): 6
INFO 15:59:18:069 19632; [WIN_CORE] ++Endpoint 0:
INFO 15:59:18:069 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{50d569e9-5452-4c02-bf73-613d96bf480a}
INFO 15:59:18:069 19632; [WIN_CORE] friendly name: “鎵0鍣?(Realtek® Audio)”
INFO 15:59:18:069 19632; [WIN_CORE] state (0x1) : ACTIVE
INFO 15:59:18:069 19632; [WIN_CORE] ++Endpoint 1:
INFO 15:59:18:069 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{570bbf74-617c-41ae-b5b1-7ff831e5175d}
INFO 15:59:18:070 19632; [WIN_CORE] friendly name: “Realtek Digital Output (Realtek® Audio)”
INFO 15:59:18:070 19632; [WIN_CORE] state (0x1) : ACTIVE
INFO 15:59:18:070 19632; [WIN_CORE] ++Endpoint 2:
INFO 15:59:18:070 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{6303603a-6a22-4bc9-b2a5-3d12dad9093e}
INFO 15:59:18:070 19632; [WIN_CORE] friendly name: “NVIDIA Output (2- NVIDIA High Definition Audio)”
INFO 15:59:18:070 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:070 19632; [WIN_CORE] ++Endpoint 3:
INFO 15:59:18:070 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{ab3ef1d0-0139-4336-a228-0cfccf775b48}
INFO 15:59:18:070 19632; [WIN_CORE] friendly name: “NVIDIA Output (2- NVIDIA High Definition Audio)”
INFO 15:59:18:070 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:070 19632; [WIN_CORE] ++Endpoint 4:
INFO 15:59:18:070 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{b095da17-74cc-4e36-8ac7-78f065d8d28f}
INFO 15:59:18:070 19632; [WIN_CORE] friendly name: “DREAMWORLD (2- NVIDIA High Definition Audio)”
INFO 15:59:18:070 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:070 19632; [WIN_CORE] ++Endpoint 5:
INFO 15:59:18:070 19632; [WIN_CORE] ID string : {0.0.0.00000000}.{da24b399-4949-4c4f-9449-7e513a37e242}
INFO 15:59:18:071 19632; [WIN_CORE] friendly name: “NVIDIA Output (2- NVIDIA High Definition Audio)”
INFO 15:59:18:071 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:071 19632; [WIN_CORE] =========================EnumDeviceEnd==========================
INFO 15:59:18:076 19632; [WIN_CORE] ==================Capture Devices Enumeration===================
INFO 15:59:18:076 19632; [WIN_CORE] #capturing endpoint devices (counting all): 4
INFO 15:59:18:076 19632; [WIN_CORE] ++Endpoint 0:
INFO 15:59:18:076 19632; [WIN_CORE] ID string : {0.0.1.00000000}.{3bc4b8db-2fd4-49ab-83b4-bba80e1afa93}
INFO 15:59:18:077 19632; [WIN_CORE] friendly name: “楹﹀厠椋?(HD Pro Webcam C920)”
INFO 15:59:18:077 19632; [WIN_CORE] state (0x1) : ACTIVE
INFO 15:59:18:077 19632; [WIN_CORE] ++Endpoint 1:
INFO 15:59:18:077 19632; [WIN_CORE] ID string : {0.0.1.00000000}.{5c10f90e-cacb-42fa-8508-82657f9e62eb}
INFO 15:59:18:077 19632; [WIN_CORE] friendly name: “绔嬩綋澹版贩闊?(Realtek® Audio)”
INFO 15:59:18:077 19632; [WIN_CORE] state (0x2) : DISABLED
INFO 15:59:18:077 19632; [WIN_CORE] ++Endpoint 2:
INFO 15:59:18:077 19632; [WIN_CORE] ID string : {0.0.1.00000000}.{a171d21a-e027-445a-8fac-0e8976753041}
INFO 15:59:18:078 19632; [WIN_CORE] friendly name: “楹﹀厠椋?(Realtek® Audio)”
INFO 15:59:18:078 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:078 19632; [WIN_CORE] ++Endpoint 3:
INFO 15:59:18:078 19632; [WIN_CORE] ID string : {0.0.1.00000000}.{c7cff824-870c-49a3-a20a-759d8bc2eaf3}
INFO 15:59:18:078 19632; [WIN_CORE] friendly name: “绾胯矾杈撳叆 (Realtek® Audio)”
INFO 15:59:18:078 19632; [WIN_CORE] state (0x8) : UNPLUGGED
INFO 15:59:18:078 19632; [WIN_CORE] =========================EnumDeviceEnd==========================
INFO 15:59:18:088 19632; [WIN_CORE] *** Windows Core Audio is supported ***
INFO 15:59:18:088 19632; [WIN_CORE] ++++++++Code block ends for checking CoreAudio properties++++++++
INFO 15:59:18:088 19632; audio jitterbuffer new smooth
INFO 15:59:18:089 21864; Thread with name:AudioFileDecoderThread started
INFO 15:59:18:089 19632; OutputMixer: start audio file decoder thread successfully
INFO 15:59:18:089 19632; OS info: Microsoft (build 18363), 64-bit
INFO 15:59:18:100 19632; [WIN_CORE] Set playout device on Windows by Windows Device Type (-2): friendly name: “鎵0鍣?(Realtek® Audio)”
INFO 15:59:18:118 19632; [WIN_CORE] Set recording device on Windows by Windows Device Type (-2): friendly name: “楹﹀厠椋?(HD Pro Webcam C920)”
INFO 15:59:18:124 19632; StereoPlayoutIsAvailable(), output: available=1
INFO 15:59:18:124 19632; StereoRecordingIsAvailable(), output: available=1
DEBUG 15:59:18:124 19632; RegisterVADCallback()
INFO 15:59:18:124 31280; Thread with name:EngineMonitorThread started
INFO 15:59:18:124 19632; RegisterVolumeNotify
INFO 15:59:18:125 19632; build AEC 0 SL = 0 simulator = 0 route = -1 in SR =48000 out SR = -1 src = 1 stereo=0 streamType = 3 audiomode = 0
INFO 15:59:18:145 19632; [WIN_CORE] Audio Engine’s current mix format for rendering shared-mode streams:
INFO 15:59:18:145 19632; [WIN_CORE] wFormatTag : 0xFFFE (65534)
INFO 15:59:18:145 19632; [WIN_CORE] nChannels : 2
INFO 15:59:18:145 19632; [WIN_CORE] nSamplesPerSec : 48000
INFO 15:59:18:145 19632; [WIN_CORE] wBitsPerSample : 32
INFO 15:59:18:166 19632; [WIN_CORE] IsFormatSupported : nChannels=2, nSamplesPerSec=48000 is supported
INFO 15:59:18:166 19632; [WIN_CORE] VoE selected this rendering format:
INFO 15:59:18:166 19632; [WIN_CORE] wFormatTag : 0x1 (1)
INFO 15:59:18:166 19632; [WIN_CORE] nChannels : 2
INFO 15:59:18:166 19632; [WIN_CORE] nSamplesPerSec : 48000
INFO 15:59:18:166 19632; [WIN_CORE] wBitsPerSample : 16
INFO 15:59:18:190 19632; [WIN_CORE] render Initialize time 0 hr 0
INFO 15:59:18:190 19632; [WIN_CORE] IAudioClient::GetBufferSize() => 1056 (<=> 4224 bytes)
INFO 15:59:18:190 19632; [WIN_CORE] render side is now initialized
INFO 15:59:18:191 28668; [WIN_CORE] render thread is now registered with MMCSS (taskIndex=1191)
INFO 15:59:18:191 28668; [WIN_CORE] [REND] size of buffer : 1056
INFO 15:59:18:191 28668; [WIN_CORE] [REND] max stream latency : 0 (0.00 ms)
INFO 15:59:18:192 28668; [WIN_CORE] [REND] device period : 100000 (10.00 ms)
INFO 15:59:18:192 28668; [WIN_CORE] [REND] initial delay : 30
INFO 15:59:18:192 28668; [WIN_CORE] [REND] endpointBufferSizeMS : 22.00
INFO 15:59:18:192 19632; [WIN_CORE] rendering audio stream has now started…
INFO 15:59:18:193 19632; output: enabled=0
INFO 15:59:18:193 19632; output: volume=33
INFO 15:59:18:193 19632; => OnWindowsCurrentDeviceChange() : kPlayoutDevice attributes 0
INFO 15:59:18:193 19632; StartPlayout complete
INFO 15:59:18:193 19632; setMuteStatus, muted: On
INFO 15:59:18:193 19632; setMuteOutput, muted: false
INFO 15:59:18:194 13112; Thread with name:AudioAsyncTask started
INFO 15:59:18:194 19632; Audio Engine Init success
INFO 15:59:18:194 19632; PipelineManager::SetDest engine = 000002193426B690
INFO 15:59:18:194 19632; agora::media::VideoEngine::CreateVideoSendTrack
INFO 15:59:18:194 2164; Thread with name:VideoAsyncTask started
INFO 15:59:18:194 19632; agora::media::VideoEngine::init: feature prerotation disabled
INFO 15:59:18:196 19632; Device Enum:Device Name:HD Pro Webcam C920
INFO 15:59:18:218 19632; Device Enum:Device Name:Logi Capture
INFO 15:59:18:247 19632; Agora Engine video codec set to custom mode role mode 0
INFO 15:59:18:247 19632; Agora Engine video codec index 1
INFO 15:59:18:247 19632; Agora Engine video stream type = 0
INFO 15:59:18:247 30740; Thread with name:VideoEncodeThread started
INFO 15:59:18:247 19632; last unique frame idx: -1 - -1
INFO 15:59:18:247 19632; EncoderWrapper::Create hardware_ = 0, hardware_low_ = 0
INFO 15:59:18:247 19632; low bit rate limit 1610612736
INFO 15:59:18:248 19632; dont need to increase unique frame idx
INFO 15:59:18:248 19632; the init unique frame idx: -1 - -1
INFO 15:59:18:248 21288; Thread with name:VideoProcessThread started
INFO 15:59:18:248 19632; agora::media::VideoEngine::setCodec: index=1 width=640 height=360 framerate=15
INFO 15:59:18:248 19632; agora::media::VideoEngine::setCodec: Intra Request = 0
INFO 15:59:18:248 30740; Thread with name:VideoEncodeThread stopped
INFO 15:59:18:248 9856; Thread with name:VideoEncodeThread started
INFO 15:59:18:248 19632; agora::media::VideoEngine::EnableLowBitRateStream: dual streams enabled 1 share 0 details 0
INFO 15:59:18:248 19632; agora::media::VideoEngine::h264WebInteropEnable: enable 0
INFO 15:59:18:248 19632; agora::media::VideoEngine::setCaptureDevice: index=0
INFO 15:59:18:248 19632; VideoSendTrackImpl::agora::VideoSendTrackImpl::UpdateCapturer capturer=00000218AB6A2210
INFO 15:59:18:248 19632; agora::media::VideoEngine::CreateVideoCapturer: interface=00000218AB6A2210
INFO 15:59:18:248 19632; agora::media::VideoEngine::setMaxVideoBitrate: max bitrate=0
INFO 15:59:18:248 19632; Setting video fec method 1, real using 1
INFO 15:59:18:248 19632; SetBandwidthAgressiveLevel to 2.
INFO 15:59:18:248 19632; dynamic sending rate control set to 2.
INFO 15:59:18:248 19632; videoEngine created and initialize here
INFO 15:59:18:248 19632; agora::media::VideoEngine::CreateVideoSendTrack
INFO 15:59:18:248 19632; [MIO] updateCapturer: (0000000000000000), type:(1)
INFO 15:59:18:248 19632; agora::media::VideoEngine::CreateAgoraDefaultCapture: type=0
INFO 15:59:18:248 19632; VideoSendTrackImpl::agora::VideoSendTrackImpl::UpdateCapturer capturer=00000218AB6A2210