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Video Upload

Information and tips on uploading your videos.

In this guide:

Note:

Navigating to Amazon Insights or Referrals while uploading your video will restart your upload. Please wait until your upload is complete to visit Amazon Insights or Referrals. 

Filmhub's Video Uploader

The Filmhub video uploader is optimized for large "broadcast master" video assets. There is no software or plugin to install, and it supports up to a 600 GB file size with no limit to upload duration. Files are also verified while uploading and again when the upload finishes.

Upload Validation

Filmhub validates your video in two stages: before you upload, and after your upload completes.

inbrowser-validation

Before you upload

The video uploader checks your file before the upload begins. This catches common issues early before sending your title to QC.

The following checks run automatically when you drop or select a file:

  • Video contains exactly one (1) video stream
  • Video has a minimum of one (1) audio stream
  • Video is not overcompressed based on the video's codec (learn about Maximum Video Compression Rates)
  • The video's frame rate is supported (23.976, 24, 25, 29.97, 30, 50, 59.94, 60)
  • The file size does not exceed 600 GB
  • The video width is at least 640 pixels
  • The video width and height are both even numbers
  • The main video is at least 2 minutes long
  • The trailer (if uploaded) is no longer than 6 minutes
  • The video uses a supported codec (ProRes, H.264, HEVC, DNxHD, DNxHR, or MPEG-2) in a supported file format (.mov, .mp4, .mpg, .mpeg, .ts, .mkv, .ogg)

Issues appear directly below the uploader as soon as you select a file. Errors shown in red will block your upload until the issue is resolved. Warnings shown in orange allow the upload to proceed, but the issue may still need to be addressed before your title passes. If multiple issues are detected, they will all be listed so you can see the full picture before uploading.

You can find the full list of validation errors in the How To: Submit Your Title to QC article.

After you upload

Once your upload completes, Filmhub automatically runs additional checks on your video. Here's how it works:

  1. A 480p preview is generated first. This is typically available to watch in the app within about 60 minutes.
  2. Once the preview is ready, automated checks run against it. This takes about an hour on average.
  3. After the checks complete, any issues found are displayed in the app. The full-quality HLS preview then generates in the background — your video remains watchable via the 480p preview in the meantime.

Currently, the post-upload check detects audio clipping. If clipping is found in your video, you'll see a warning in the app along with the time codes where the issue occurs. An audio clipping warning will not block your submission.
 
Screenshot 2026-04-24 at 18.03.23

Upload Duration

Master video assets are often large and can take a while to upload. Upload times can range from a couple of hours to several days, depending on the upload speed of your internet. This is completely normal. Just leave your browser window open and your computer running. Remember to disable any energy-saving sleep mode.

We've had many uploads from remote locations going on for more than a week. Our software is optimized for such long-running uploads. While it might take a while, given your speed, uploads do not fail.

Resume Upload

You can also pause, interrupt and then resume uploads from where it was left off - for example, if you accidentally close the browser window or in case your internet connection drops for a moment. Simply call up the same page in our app, click Resume, select the same file, and upload continues.

Uploads go directly to the Filmhub cloud storage, which has virtually unlimited capacity and ingest bandwidth. But depending on your location, your upload speed might vary. Here's we optimize upload speed - and how you can help.

Maximum Upload Speed

Our software uploads multiple parts ("chunks") of a video file in parallel to maximize upload speed. While uploading, it adds parallel uploading tasks until the full upload bandwidth of your internet connection is reached. This always uses the maximum speed your local internet connection allows.

There's nothing you need to do to maximize upload speed. Just leave your browser open.

Multiple Location Upload

But there are even faster uploads possible by using multiple locations. Here's how it works.

  1. Start the upload at your primary location, for example, your home.

  2. Copy your video file to an external hard drive.

  3. Take that hard drive to a second upload location, for example, your post-production facility.

  4. Resume the upload.

  5. Repeat steps 2 to 4 for as many locations as you want.

This virtually bundles the upload speed of every location into one very fast upload. Our cloud puts the file securely back into one piece and verifies file integrity.

Important: Use a copy of the exact same file in every location. Our uploader quickly checks before starting to make sure you do.