[QUESTION] The video appears delayed after a few minutes of preview

[Nomidia]

After a few minutes of previewing, the video is delayed for about 4 seconds. The delay is cumulative, but it will not continue to increase thereafter. If we control the camera's pt, the position is inaccurate because of the delay. But if we preview again or open a new viewer, the time is accurate at first. The same streaming data is distributed to each peers at the same time.

[Figure1]

[Figure2]

[disa6302]

@Nomidia ,

Is this something you observed recently? Which version of the SDK are you using?
Do you see any errors in the logs?

[Nomidia]

It is the latest version and I didn't see any errors.

[disa6302]

Hmm. Not sure what could be happening. Did anything change after updating the version? Did you notice this in the previous version you are using?

Without details, it would be difficult to understand what could be causing this.

[Nomidia]

We did not notice this issue before, I'm not sure if anyone else has also encountered this problem. I need to confirm something.

1. Whether the previous version also has this problem.
2. Check if the timestamp have an impact on it.
   BTW, have you tested the real-time performance after a period of preview? @disa6302

[Nomidia]

Oh, it is caused by the timestamp. At first, we use the real-time timestamp produced by the device, but the frame interval is uneven, the sound from the viewer is fluctuant. As aws team suggested, then we use the relative time which is accumulated with frame duration, It must be not precise enough.
I will adjust the timestamp next.

[Ryan45758]

Hi, did you solve this problem? how did you solve it

[vc60er]

+1