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Issue metadata

Status: Untriaged
Owner: ----
Cc:
EstimatedDays: ----
NextAction: 2019-07-09
OS: ----
Pri: 3
Type: Bug



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Continuously error log from webrtc/modules/audio_coding/acm2/audio_coding_module.cc

Project Member Reported by mzhuo@chromium.org, Oct 13 2017

Issue description

Chrome Version: 
        Guado running meeting mode 
	ChromeOS: 9765.84.0	
        Chrome:   61.0.3163.123	

What steps will reproduce the problem?
(1) join meeting

What is the expected result?
No error

What happens instead?
/var/log/chrome/chrome:
[1:215:1012/183835.250127:ERROR:neteq_impl.cc(1154)] Packet missing where it shouldn't.
[1:215:1012/183835.250286:ERROR:acm_receiver.cc(128)] AcmReceiver::GetAudio - NetEq Failed.
[1:215:1012/183835.250395:ERROR:audio_coding_module.cc(1115)] PlayoutData failed, RecOut Failed
[1:215:1012/183835.250554:WARNING:audio_mixer_impl.cc(199)] GetAudioFromSources: failed to GetAudioFrameWithInfo() from source

 
debug-logs_20171012-183935.tgz
2.1 MB Download

Comment 1 by mzhuo@chromium.org, Oct 13 2017

The  4 lines of log happens to all Guado setup. from  webrtc-internal seems the other party is able to received audio stream. 
This log is new for ChromeOS: 9765.84.0	and Chrome:   61.0.3163.123. With previous R61 image did not see these error log.	
Screen Shot 2017-10-12 at 6.25.53 PM.png
587 KB View Download
Screen Shot 2017-10-12 at 6.26.09 PM.png
613 KB View Download

Comment 2 by mzhuo@chromium.org, Oct 13 2017

Cc: -honghaiz@chromium.org -mbonadei@chromium.org choonc@google.com katierh@chromium.org

Comment 3 by mzhuo@chromium.org, Oct 13 2017

Cc: -ossu@chromium.org harpreet@chromium.org

Comment 4 by mzhuo@chromium.org, Oct 13 2017

Cc: honghaiz@chromium.org mbonadei@chromium.org

Comment 5 by mzhuo@chromium.org, Oct 13 2017

Cc: ossu@chromium.org

Comment 6 by mzhuo@chromium.org, Oct 13 2017

Cc: -honghaiz@chromium.org phoglund@chromium.org
The NetEq error clearly shows that some anomaly has happened. I'm going to try to figure out what the conditions may be.

In the meantime, there are a lot of SSRC errors. E.g.,
"The SSRC X is not associated with a receiving track"
"receive_rtp_config_ lookup failed for ssrc Y"

What's up with that?

Also, what Chrome revision was the previous M61 image that was supposed to work?

Does this repro on other platforms than Guado?
Cc: hlundin@chromium.org

Comment 10 by mzhuo@chromium.org, Oct 16 2017

for #7 I have seen "The SSRC X is not associated with a receiving track"
"receive_rtp_config_ lookup failed for ssrc Y" since I started working on this project. 

for #8 I did not test other platform than guado. 
Before 9765.84.0  I tried ChromeOS: 	9765.82.0 and Chrome	61.0.3163.121, did not see this issue. 
OK, thanks.

If you want me to investigate any more from the NetEq point-of-view, I would either need an RtcEventLog recording (from the receiving side) when this happens, or a detailed description how I can reproduce this on regular desktop Chrome.

An RtcEventLog is created by opening up chrome://webrtc-internals, expand the Create Dump section, and check "Enable diagnostic packet and event recording".

Labels: Pri-3
NextAction: 2019-07-09
Downgrading P2s that haven't been modified in more than 6 months, which have no component or owner.

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