Skip navigation
Currently Being Moderated

drm headers in mp4 encryption

Apr 11, 2012 12:44 AM

In flash access support for mp4 format, does mp4.header file alone is sufficient to a player to do a license request?

Do you have any specifications detailing the mp4.header file structure? or how flash access encryption is done for mp4 files?




  • Currently Being Moderated
    Apr 12, 2012 10:15 AM   in reply to archana_k

    The Media Packager command line tool can generate a .header and a .metadata file when packaging content. The .metadata file can be used to initiate a license request from the player -- the .metadata file alone is sufficient to perform a license request.


    For information on the FLV/F4V file formats, you can download the video file format specification from

    Mark as:
  • Currently Being Moderated
    Apr 16, 2012 9:51 AM   in reply to archana_k

    No, the .metadata is not the same as the DRM Additional Header. For the DRMAdditionalHeader tag in the manifest, you need to use the contents of .header file (base-64 encoded) that was generated by the Media Packager command line tool.

    Mark as:

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points