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Download video or audio

When you upload a video to Stream, it can be streamed using HLS/DASH. However, for certain use-cases, you may want to download the MP4 or M4A file. For cases such as offline viewing, you may want to download the MP4 file. Whereas, for downstream tasks like AI summarization, if you want to extract only the audio, downloading an M4A file may be more useful.

Generate downloadable MP4 files

You can enable MP4 support on a per video basis by following the steps below:

  1. Enable MP4 support by making a POST request to the /downloads or /downloads/default endpoint.
  2. Save the MP4 URL provided by the response to the endpoint. This MP4 URL will become functional when the MP4 is ready in the next step.
  3. Poll the /downloads endpoint until the status field is set to ready to inform you when the MP4 is available. You can now use the MP4 URL from step 2.

You can enable downloads for an uploaded video once it is ready to view by making an HTTP request to either the /downloads or /downloads/default endpoint.

To get notified when a video is ready to view, refer to Using webhooks.

Generate downloadable M4A files

To enable M4A support on a per video basis, follow steps similar to that of generating an MP4 download, but instead send a POST request to the /downloads/audio endpoint.

Examples

The downloads API response will include download type for the video, the download URL, and the processing status of the download file.

Separate requests would be needed to generate a downloadable MP4 and M4A file, respectively. For example:

Request MP4
curl -X POST \
-H "Authorization: Bearer <API_TOKEN>" \
https://api.cloudflare.com/client/v4/accounts/<ACCOUNT_ID>/stream/<VIDEO_UID>/downloads
Response MP4
{
  "result": {
    "default": {
      "status": "inprogress",
      "url": "https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/default.mp4",
      "percentComplete": 75.0
    }
  },
  "success": true,
  "errors": [],
  "messages": []
}

And for an M4A file:

Request M4A
curl -X POST \
-H "Authorization: Bearer <API_TOKEN>" \
https://api.cloudflare.com/client/v4/accounts/<ACCOUNT_ID>/stream/<VIDEO_UID>/downloads/audio
Response M4A
{
  "result": {
    "audio": {
      "status": "inprogress",
      "url": "https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/audio.m4a",
      "percentComplete": 75.0
    }
  },
  "success": true,
  "errors": [],
  "messages": []
}

You can view all available downloads for a video by making a GET HTTP request to the downloads API.

Request
curl -X GET \
-H "Authorization: Bearer <API_TOKEN>" \
https://api.cloudflare.com/client/v4/accounts/<ACCOUNT_ID>/stream/<VIDEO_UID>/downloads
Response
{
  "result": {
    "audio": {
      "status": "ready",
      "url": "https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/audio.m4a",
      "percentComplete": 100.0
    }
    "default": {
      "status": "ready",
      "url": "https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/default.mp4",
      "percentComplete": 100.0
    }
  },
  "success": true,
  "errors": [],
  "messages": []
}

Customize download file name

You can customize the name of downloadable files by adding the filename query string parameter at the end of the URL.

In the example below, adding ?filename=MY_VIDEO.mp4 to the URL will change the file name to MY_VIDEO.mp4.

https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/default.mp4?filename=MY_VIDEO.mp4

The filename can be a maximum of 120 characters long and composed of abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_ characters. The extension (.mp4) is appended automatically.

Retrieve downloads

The generated MP4 download files can be retrieved via the link in the download API response.

Terminal window
curl -L https://customer-<CODE>.cloudflarestream.com/<VIDEO_UID>/downloads/default.mp4 > download.mp4

Secure video downloads

If your video is public, the MP4 will also be publicly accessible. If your video is private and requires a signed URL for viewing, the MP4 will not be publicly accessible. To access the MP4 for a private video, you can generate a signed URL just as you would for regular viewing with an additional flag called downloadable set to true.

Download links will not work for videos which already require signed URLs if the downloadable flag is not present in the token.

For more details about using signed URLs with videos, refer to Securing your Stream.

Example token payload

{
    "sub": <VIDEO_UID>,
    "kid": <KEY_ID>,
    "exp": 1537460365,
    "nbf": 1537453165,
    "downloadable": true,
    "accessRules": [
      {
        "type": "ip.geoip.country",
        "action": "allow",
        "country": [
          "GB"
        ]
      },
      {
        "type": "any",
        "action": "block"
      }
    ]
  }

Billing for MP4 downloads

MP4 downloads are billed in the same way as streaming of the video. You will be billed for the duration of the video each time the MP4 for the video is downloaded. For example, if you have a 10 minute video that is downloaded 100 times during the month, the downloads will count as 1000 minutes of minutes served.

You will not incur any additional cost for storage when you enable MP4s.