Skip to content
Stream
Visit Stream on GitHub
Set theme to dark (⇧+D)

Frequently asked questions about Cloudflare Stream

What formats and quality levels are delivered through Cloudflare Stream?

Cloudflare decides on which bitrate, resolution and codec is best for you. We deliver all videos to industry standard H264 codec. We use a few different adaptive streaming levels from 360p to 1080p to ensure smooth streaming for your audience watching on different devices and bandwidth constraints.

Can I download original video files from Stream?

You cannot download the exact input file that you uploaded. However, depending on your use case, you can use the Downloadable Videos feature to get encoded MP4s for use cases like offline viewing.

Is there a limit to the amount of videos I can upload?

  • By default, a video upload can be at most 30 GB.

  • By default, 120 videos can be in the inprogress, queued or downloading state at once. If videos are in error, ready or pendingupload states, they don't count towards this limit.

  • An account cannot upload videos if the total video duration exceeds the video storage capacity purchased.

Limits apply to Direct Creator Uploads at the time of upload URL creation.

Uploads over these limits will receive a 429 (Too Many Requests) or 413 (Payload too large) HTTP status codes with more information in the response body. Please write to Cloudflare support or your customer success manager for higher limits.

Can I embed videos on Stream even if my domain is not on Cloudflare?

Yes. Stream videos can be embedded on any domain, even domains not on Cloudflare.

What input file formats are supported?

Users can upload video in the following file formats:

MP4, MKV, MOV, AVI, FLV, MPEG-2 TS, MPEG-2 PS, MXF, LXF, GXF, 3GP, WebM, MPG, QuickTime

What frame rates (FPS) are supported?

Cloudflare Stream supports video file uploads for any FPS, however videos will be re-encoded for 30 FPS playback. If the original video file has a frame rate lower than 30 FPS, Stream will re-encode at the original frame rate.

If the frame rate is variable we will drop frames (e.g. if there are more than 1 frames within 1/30 seconds, we will drop the extra frames within that period).

What browsers does stream work on?

The Stream player can be successfully embedded on the following platforms:

BrowserVersion
ChromeSupported since Chrome version 88+
FirefoxSupported since Firefox version 87+
EdgeSupported since Edge 89+
SafariSupported since Safari version 14+
OperaSupported since Opera version 75+
Mobile PlatformVersion
Chrome on AndroidSupported on Chrome 90
UC Browser on AndroidSupported on version 12.12+
Samsung InternetSupported on 13+
Safari on iOSSupported on iOS 13.4+. Speed selector supported when not in fullscreen.

If you're producing a brand new file for Cloudflare Stream, we recommend you use the following settings:

  • MP4 containers, AAC audio codec, H264 video codec, 30 or below frames per second
  • moov atom should be at the front of the file (Fast Start)
  • H264 progressive scan (no interlacing)
  • H264 high profile
  • Closed GOP
  • Content should be encoded and uploaded in the same frame rate it was recorded
  • Mono or Stereo audio (Stream will mix audio tracks with more than 2 channels down to stereo)

Below are bitrate recommendations for encoding new videos for Stream:

ResolutionRecommended bitrate
1080p8 Mbps
720p4.8 Mbps
480p2.4 Mbps
360p1 Mbps