WebM videos presentation continuously reloads

  • 1
  • Problem
  • Updated 4 years ago
  • Not a Problem
I am still having problems with WebM videos causing the presentation to constantly restart. In a nutshell if I have multiple WebM's in a placeholder this causes the player to restart continuously after typically eight videos playing through. It doesn't matter if I have eight or more videos in a placeholder or less (like two or three) after eight (sometimes nine) videos play the presentation will reload. I have had to combine several separate short videos into one long video to play what is needed for my client.  Although this technically works, it makes for way more work and way less flexibility.

If I use MP4's I don't encounter this problem. They just don't run nearly as nice as WebM videos.
This happens on multiple units in multiple locations. Systems include Windows, Linux & the RV App running on a Mac. 

I am at a loss & not sure what to do. No one else seems to have this problem from what I can see.
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Kevin Moldenhauer

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Posted 4 years ago

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Neal

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Kevin,

Can you have Developer's tools (press F12) open when running the Presentation?  You'll need to be on the Console tab.  Can you make note of any errors that you see?  Screenshots posted here would be best.

Thanks.
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Kevin Moldenhauer

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Hi Neal,

here's the screen shot, there are indeed errors of "Resource interpreted as Image but transferred with MIME text/html"

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Neal

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Hi Kevin,

I would say those messages aren't unexpected. I believe these are also warnings, not errors.  I see this happening with all videos played, regardless of the number of videos in a Playlist.

Would you object to me adding a Display of my own to your company to see if it can be replicated that way?  Also, out of curiosity, have you tried adding your Displays to a different Schedule, or have them run a different Presentation (with the same content)? Just wondering if there's something along those lines that may be causing the problem

Thanks.
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Kevin Moldenhauer

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Hi Neal,

Regarding the messages, I guess I jumped the gun when I saw the yellow triangles & exclamation marks.

I would not object whatsoever to you adding a display of your own to see what you can find. I have indeed tried different schedules & running different presentations with the same problems.

Thanks so much for looking into this. 
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Neal

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Hi Kevin,

I thought I replied to this a while back, I did try running my Display with your content and I didn't see any restarts happening.

Is there any commonality between the machines that you've tried?  Anti Virus software, certain piece of hardware, etc?
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Kevin Moldenhauer

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Hi Neal,

Thanks for remembering, I hadn't answered back as I still haven't fully solved this mystery. One last piece of the puzzle to solve.  There isn't a commonality issue, as it was occurring on various built machines both Windows & Linux. I have two other separate clients which haven't had any issues, I can load their presentations on my machine and everything works great. I loaded my convenience store presentation back and the constant reloading would happen again. I then clued in finally that the other clients have had their videos for a long time, and what has changed with my current videos for the convenience store ones.

Trying to figure things out I came across an article that talked about having different formatted videos on a website in a play list causes issues in Chrome. That's what got me thinking about my videos & the encoding.

I make my own videos, and discovered that over time I had switched my convenience store videos  .mov output from a a 422HQ output to a 422LT output. Smaller file size with no discernible quality difference. I would then take those files and convert to WebM. When I reformatted the files output to all be 422LT (instead of some original 422HQ & some 422LT in the mix, all converted to WebM)  everything worked as it should. At least I thought...I  then discovered that some videos will cause the problem. I create them in the exact same program with the same settings but certain ones (two so far)  for unknown reasons cause the problem. When they are removed, everything is good. I have searched for something that will let me inspect the contents of the video files to compare and see what might be happening  but can't find anything that can show more than the basic info. Anything you can recommend? I am still at a loss why a select few videos have this issue.

If I discover anything else I'll keep you posted,
Kevin
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Kevin Moldenhauer

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Hi Neal,

I have finally solved the problem & it's an odd one. I create animated videos using Apple Motion, and not sure if the problem is specific to that program or not. I figured out that fonts were causing the issue, more specifically because I had two folders of fonts on my computer. When I used a font not in my 'computer' folder (installed to a 'user' folder somehow) this causes some kind of glitch within the coding of the video file. When I replaced the fonts from 'problem' videos using ones stored in the computer location no more issues. The videos would always work fine by their own, or as a .mp4 but after converting to WebM something doesn't jive playing on the Rise Vision player. Not sure why or how, that is beyond my scope.

My previous post I mentioned converting all the videos to the same output .mov settings helping. Not sure anymore if that was it now, maybe just got lucky with most of my videos using fonts from the computer location.

I am thinking that you didn't see the restarts as they were very quick, and unless you just sat there constantly staring at the screen (not very exciting, trust me) you would miss it. Anyways, very relieved to have finally figured out this strange issue.

Kevin 
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Neal

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Wow, I can honestly say I wouldn't have figured that one out.

Glad to hear you found out what was going on.
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Kevin Moldenhauer

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Took me long time, but I went through every possible thing I could think of between the videos to find the possible culprit.  Not sure if anyone else will ever run into this problem but now we know.
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Neal

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If there is a next time, I'll certainly be remembering this.