# Video upload missing frames

**URL:** <https://discuss.roboflow.com/t/video-upload-missing-frames/1960>\
**Category:** 🤝  Community Help\
**Tags:** bugs\
**Created:** [April 19, 2023, 9:51am UTC](https://discuss.roboflow.com/t/video-upload-missing-frames/1960 "2023-04-19T09:51:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kojon74](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/kojon74/32/1728_2.png) [@kojon74](https://discuss.roboflow.com/u/kojon74)\
**Post date:** [April 19, 2023, 9:51am UTC](https://discuss.roboflow.com/t/video-upload-missing-frames/1960/1 "2023-04-19T09:51:52Z")

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I created a new project for object detection using the Roboflow web app and was trying to upload my dataset to the project. Since I have a video, I decided to upload that, specified the frame rate, then let Roboflow extract all the frames from my video. When the upload was finally completed, I saw many frames from my video had been uploaded which I was happy to see. But then I noticed the number of frames was significantly lower than I was expecting. I had expected ~3600 frames (1 min video at 60fps), but I only uploaded ~400 frames. Even when looking at the frame numbering created by Roboflow, I noticed that it was skipping many numbers (see image).

I then tested this again with an even shorter 20-second video. However, I was still missing some frames again although I was missing significantly less (got 242, expected 266).

Has anyone else had this issue or know how to fix it? I guess worst case I could extract the frames from the video myself and upload but I have many videos and would prefer if I could upload the video.

 ![Screenshot 2023-04-19 at 2.34.33 AM](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/2X/8/81a173207916a97010320f80f786c9fd0369644a.jpeg)

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**Author:** ![Mohamed](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mohamed/32/62_2.png) [@Mohamed](https://discuss.roboflow.com/u/Mohamed)\
**Post date:** [April 19, 2023, 9:54am UTC](https://discuss.roboflow.com/t/video-upload-missing-frames/1960/2 "2023-04-19T09:54:49Z")

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“1min video at 60fps”

There were likely lots of frames that looked _very_ similar or the exact same. We do similarity filtering on upload to avoid upload of duplicate images.

Try a lower sample rate.