Playback stuttering issue on YouTube  

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Skaven252
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Playback stuttering issue on YouTube

by Skaven252 » Sat Apr 22, 2017 6:49 am

I uploaded a video rendered from AVP (and with 3D / spatial audio metadata injected) to YouTube:
https://www.youtube.com/watch?v=j3JfxVPZTjo

You may see that it has a strange stuttering problem. Every few seconds, there's a hitch where the playback 'jumps'. I you watch it in anaglyph, you can see that the frames briefly go out of sync.

I don't have this problem when watching the video in Samsung VR with my Gear VR, the playback is smooth.

The only reason I can think of is that I rendered the video originally at the frame rate "Same as original video", so it ended up to be 29,973 instead of 29,970, and that the frame rate mode is "variable". Could this be the cause? Should I always render to fixed frame rate from AVP?

I can only see the 29,973 frame rate in Vegas Pro. Even FFMpeg reports the video's frame rate as 29,970 (but variable).

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