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Media video error when rendering with Sequencer

I have problem like this : https://answers.unrealengine.com/questions/493727/media-video-texture-playback-speed-too-high-record.html

the gmpreussner said that "This is not supported yet."

Eight months later, I use UE4.16 preview 1, still have the problem.

When rendering small size resolution, the problem is not obvious, can endure. When rendering large size resolution, the result will be wrong. I'm not sure whether the expression can let you understand, so I recorded a video: https://www.youtube.com/watch?v=X060pA4RRHU

The problem seems to have happened for a long time, I'm not sure if my operation has a problem, I hope I can get the official reply

Product Version: UE 4.16
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asked May 25 '17 at 04:29 AM in Bug Reports

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YoungSun3d
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Hi YoungSun3D,

The reason you're seeing it work better at smaller resolutions is because the media ends up playing back in real-time, but your sequence isn't playing in real-time for renders. So when you render at lower resolutions, it renders each frame much faster (maybe even close to real-time), but when a frame renders slower (like with a higher resolution) the problem becomes more pronounced. Does that make sense?

We've heard of people using a method of advancing the frames of the movie one at a time as the sequence renders. If you do this though, you'll want to give some lead time so that the media has time to load, then OnMediaOpened to get duration and start everything up.

-Matt W.

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answered Jun 06 '17 at 02:22 PM

avatar image YoungSun3d Jun 08 '17 at 02:32 AM

Thanks for your reply,i use "seek" almost solve this issue,if the resolution size bigger or the scene complicated,still can't perfect sync,of course much better than before.

I can't understand why still have this issue,can you give me some advice?

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avatar image Matt.Williams Jul 03 '17 at 08:14 PM

Hey YoungSun3d,

Sorry for the delay, but I've emailed one of our engineers about this. I don't know if you've had any progress since your last post, but let me know if you've already figured it out.

-Matt W.

avatar image YoungSun3d Jul 05 '17 at 07:02 AM

No progress, I still use the way for last post, fortunately the result isn't too bad ^_^.

avatar image Matt.Williams Jul 19 '17 at 08:28 PM

Hey YoungSun3d,

So right now I'd treat this as just a bug that will be fixed in a later release. Our engineer is slammed right now and said your workflow looks like it's the best workaround we can do for the moment.

-Matt W.

avatar image LoicLarochelle Jan 19 '18 at 05:51 PM

I'm trying to reproduce your fix with your mediaplayer_issue.jpg image as reference. When I play in editor, the video doesn't play with the right play rate. What did you put in the timeline node?

avatar image LoicLarochelle Jan 18 '18 at 04:28 PM

I also need this issue to be fixed. Happy to see a workaround. But for my project, I will need more timing precision. -Loic

avatar image LoicLarochelle Jan 18 '18 at 06:55 PM

I cant find this issue in https://issues.unrealengine.com/ Did anyone fill a bug report? If not, I will do it.

-Loic

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