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Problem Uploading video post and replies

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video not uploading - August 1 at 10:33:AM
Kate Dyball
1 Posts

I have tried to upload a video from my i phone and it continually comes up with an error- I have tried other videos and the same happens. I have also opened the video on quick time and there doesn't seem to be a problem there so im not sure what to do?- any suggestions?

Attached File: Screenshot20200801at16.04.32.png


Replies to video not uploading

Re: video not uploading - August 01 11:39:AM
Wolfgang
132 Posts

Please provide more information, such as video format and computer type and operating system.  Some file types are not supported by Tracker.  Have you tried to convert the video to a stand mpeg format?  Do Tracker examples load into your Tracker program from the ComPADRE digital library?



Problem uploading video - April 15 at 2:03:AM
Felipe Jimenez
2 Posts

I recorded a video on my iPhone and then tried to upload to tracker but every time it just says that tracker could not upload the video. I have tried multiple times to redo the video, delete tracker and re download the program and nothing works. I will post below the image that keeps popping up every time I try to upload the video. Please help

Attached File: ScreenShot20200415at2.02.07AM.png


Replies to Problem uploading video

Re: Problem uploading video - April 15 10:02:AM
Wolfgang
132 Posts

Felipe-

You appear to be using the Applications folder on a Mac as your Tracker home directory.  The Applications fold is usually write protected.  Try another home directory.  If that does not work, you can try to reinstall the latest Tracker as that should reset the home directory.



Re: Problem uploading video - April 15 7:45:PM
Felipe Jimenez
2 Posts

The reason I use the application tab as my home directory is because tracker will only let me pull videos from there and not anywhere else. It won't even pull up any of the other tabs. Have any idea on how to fix that?



Re: Problem uploading video - April 15 3:04:PM
Alexander Osorio Caicedo
2 Posts

Hello, Felipe. I had the same problem several days ago. I could work it out by using HandBrake (an open source video transcoder), and changing the video encoder to MPEG-4. I also had to change the quality to Average Bitrate because, although the video successfully uploaded to Tracker, it kept jumping almost in random steps.
Another thing that I tried and worked was to upload the video to iMovie. I extracted (trimmed) the section where the movement ocurred and used the option Share in the form of a File. In that way I was able to create a video that worked well on  Tracker.



Re: Problem uploading video - April 17 6:37:PM
Jessica Landeira
1 Posts

The same thing is happening to me. I can't solve the problem.
Can anybody help?



Re: Problem uploading video - April 22 10:29:AM
Mark Sprague
2 Posts

I recorded a video on my iPhone XR (iOS 13.4.1, default video settings) and transferred it to my Mac (Mac OS 10.15.4) to open it with Tracker (version 5.1.4). Tracker will not open the video. It gives a "Video could not be opened" message. Looking at the video information in Quicktime, the video has a .MOV extension and is encoded in HEVC (8-bit) format. If i use Quicktime Player to export the video in 1080p format, the result is a video with a .mov extension encoded in H.264 format. Tracker can open this one. If I use Handbrake to transcode the original video with a constant frame rate, I get a file with an .mp4 extension that is encoded in H.264 format. Tracker can open this file as well.

I can successfully transcode and open iPhone videos, but I think my students will have difficulty with these extra steps. Is there any way to get Tracker to open the original iPhone video files that seem to be encoded with HEVC by default?



Re: Problem uploading video - April 22 12:14:PM
Douglas Brown Avatar
Douglas Brown
276 Posts

Unfortunately, if the Xuggle video engine is unable to open the original video there's nothing I can do about it at this point :-(  Doug

> Re: Problem uploading video
>
> I recorded a video on my iPhone XR (iOS 13.4.1, default
> video settings) and transferred it to my Mac (Mac
> OS 10.15.4) to open it with Tracker (version 5.1.4).
> Tracker will not open the video. It gives a "Video
> could not be opened" message. Looking at the video
> information in Quicktime, the video has a .MOV extension
> and is encoded in HEVC (8-bit) format. If i use Quicktime
> Player to export the video in 1080p format, the result
> is a video with a .mov extension encoded in H.264
> format. Tracker can open this one. If I use Handbrake
> to transcode the original video with a constant frame
> rate, I get a file with an .mp4 extension that is
> encoded in H.264 format. Tracker can open this file
> as well.
>
> I can successfully transcode and open iPhone
> videos, but I think my students will have difficulty
> with these extra steps. Is there any way to get Tracker
> to open the original iPhone video files that seem
> to be encoded with HEVC by default?



Re: Problem uploading video - April 22 3:04:PM
Mark Sprague
2 Posts

Thanks for the feedback. I opened an issue for this on the Xuggle Github repository. https://github.com/OpenSourcePhysics/video-engines/issues/3



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