Video call are out of sync with Audio of more than 10 seconds

[OnAirDroid]

Guidelines

• I have searched searched open and closed issues for duplicates
• I am submitting a bug report for existing functionality that does not work as intended
• This isn't a feature request or a discussion topic

Bug description

Hello again @jim-signal

you solved the echo problem recently,
(People I call via Signal Messenger experience an echo of themselves #13881)
on my
Samsung Galaxy S5 (klte) with Lineage 16 as well as on
Samsung Galaxy S5 Mini (kminilte) with Lineage 14

but was haven't been solved is an out of sync problem on Video calls, which also started about 3 month ago!
On Video calls the video is delayed more than 10 seconds to the Audio!
In other words, I hear the person talking and more than 10 seconds later I see the movement of the lips, a huge time gap!

I hope my recent log files of my previous echo issue (#13881) are good enough to solve this time gap problem?

Thanks for looking into that problem.

Screenshots

No response

Device

Samsung Galaxy S5 (klte) and Samsung Galaxy S5 Mini (kminilte)

Android version

Lineage 16 and Lineage 14

Signal version

latest from December 7.28.4

Link to debug log

No response

[jim-signal]

@OnAirDroid a/v sync issues will be difficult to diagnose from the log files, but we can take a look. Can you please provide a new log from the latest client release? The log should also capture at least one call in which you experience the issue.

[OnAirDroid]

Can you please provide a new log from the latest client release? The log should also capture at least one call in which you experience the issue.

@jim-signal
Here is the debug log from the Samsung Galaxy S5 Mini (kminilte) with Lineage 14 (the klte might be the same problem as it was with the echo before).
https://debuglogs.org/android/7.29.4/9df3c0a6eb75b7a4c89dcbba23fb7cf5e5e0bdbdb60f85aaa4ca0ae278dd1729

Thanks for looking into the problem.

[jim-signal]

Hi @OnAirDroid, I was able to check your logs finally. They show a lot of delays, as if there is an issue with the network. It looks like you are using a VPN. Can you please let us know which one and if you are using any non-standard configuration options? We could try to look at it.

Also, if you use a newer client version we have had some updates to the media part, so the behavior may or may not be different, but it would be good to get some fresh logs. Thanks!

[OnAirDroid]

Hi @OnAirDroid, They show a lot of delays, as if there is an issue with the network. It looks like you are using a VPN.
Can you please let us know which one and if you are using any non-standard configuration options?

@jim-signal
What does a non-standard configuration refers to? If the Signal settings are meant, the answer is NO, everything is pretty much standard. I just activated the confirmation on received messages.

Here is a new Debug Log File with the latest Signal version on a Video Call without VPN (the time gap/delay is the same!)

https://debuglogs.org/android/7.32.2/79ad4d9bcd41cf2e65713d5977637619cf1d466cdc796ef662b600c81972aace

Thanks for looking into the problem and as I mentioned that problem wasn't there in the first half of last year.

[jim-signal]

@OnAirDroid I can see in the logs that the call was pretty bad. There are a lot of logs indicating video rendering issues. I'll have to see where those are coming from and try to reproduce.

[OnAirDroid]

@OnAirDroid I can see in the logs that the call was pretty bad. There are a lot of logs indicating video rendering issues. I'll have to see where those are coming from and try to reproduce.

This may or may not be related to the Video Call issue, but there is something wrong how Signal handles the camera!
@jim-signal
I just tried to pair Signal with the Signal Desktop app via the QR Code and that doesn't work either!
No matter how long and how precise I point the camera to the QR Code it won't catch it!
The camera goes on, stays for like 5 second on, than goes off and on again, stays on again on for like 5 seconds but never catches the QR Code!
This cycle is endless!
The same issue was reported in the Lineage Forum by another user.
https://xdaforums.com/t/g800f-m-y-rom-7-1-njh47f-lineageos-14-1-for-g800f-m-y-beta-19-08-2017.3549055/post-88260835
but in opposite to that user my third party barcode scanners work perfectly and no other app on my phone has problems with the Camera!

Here is the Debug Log concerning the pairing via QR Code
https://debuglogs.org/android/7.32.2/c35b23b3add2a8684848f16922ff210ef4623729a13cad1337c62a1786f30b46

In addition, taking pictures with Signal works ok.

Thank you for looking into that problem as well.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been closed due to inactivity.