Latency of RTSP video/audio stream increased to 8 seconds from 0.5 seconds due to AVProVideo update
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よしたか
'Use Low Latency' option of AVProVideo is removed since version 11.5.1, then our RTSP stream has massive 8 seconds latency (before update, it has 0.5 seconds latency).
Please don't update AVProVideo to 11.5.1 of VRChat client or contact them to revert the deletion of 'Use Low Latency' option.
I'm providing TopazChat audio/video RTSP streaming service for VRChat musicians. We have a music live performance almost everyday. We implements it by AVProVideo and VRCSDK2 but recent AVProVideo update removed 'Use Low Latency' option, so our audio latency increased to 8 seconds from 0.5 seconds. Stream latency is crucial for us, that change will break our community.
Currently VRChat client uses AVProVideo version before 11.5.1, so existing worlds is fine. But we can't choose AVProVideo version on Unity Asset Store, so new world is affected by their changes.
I opened the issue at AVProVideo GitHub relating this problem: https://github.com/RenderHeads/UnityPlugin-AVProVideo/issues/491
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Tupper - VRChat Head of Community
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The newest version of AVPro (12 Nov 2020) added the "Low Latency" option back. Since there's no reason we'd be updating to an interim version, this issue is closed.
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Tupper - VRChat Head of Community: Thank you!
Ruuubick - Designer
Merged in a post:
Add "UseLowLatency" function to VRCAVProVideoPlayer
オノッチ｜沙影
The MediaPlayer component of AvProVideo allows for low latency streaming by enabling "UseLowLatency".
We can use the VRCAVProVideoPlayer component of SDK3 to use AVProVideo in our world. However, there is no option to enable "UseLowLatency".
I would like to add a feature that allows this option to be set.
Jazzy Senpai
If you still have an old package you can still use the low latency settings. Although in SDK 3 the scripts get removed on world load.
よしたか
RenderHeads replies as they will add 'Use Low Latency' option again in next version of AVProVideo. If you will update AVProVideo, please wait for their update including 'Use Low Latency' rollback.
Thanks!