https://github.com/stuarthicks/mrd

"DRM" backwards. Inspect Widevine and PlayReady PSSH payloads.
https://github.com/stuarthicks/mrd

cli drm go golang mp4 playready pssh widevine widevine-drm

Last synced: 11 months ago
JSON representation

"DRM" backwards. Inspect Widevine and PlayReady PSSH payloads.

• Host: GitHub
• URL: https://github.com/stuarthicks/mrd
• Owner: stuarthicks
• License: mit
• Created: 2025-03-30T09:55:20.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2025-04-05T20:11:29.000Z (11 months ago)
• Last Synced: 2025-04-10T00:57:51.813Z (11 months ago)
• Topics: cli, drm, go, golang, mp4, playready, pssh, widevine, widevine-drm
• Language: Go
• Homepage: https://github.com/stuarthicks/mrd
• Size: 32.2 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# MRD ![workflow](https://github.com/stuarthicks/mrd/actions/workflows/go.yml/badge.svg)

mrd ("drm" backwards), pronounced /mɛː(ɹ)d/

Decoding the primordial soup of video DRM metadata. Inspired by https://walkergriggs.com/2024/10/16/pssh_primordial_soup_of_secure-ish_headers/

## Install

Using Homebrew:

    brew install stuarthicks/brews/mrd

Using Go:

    go install github.com/stuarthicks/mrd@latest

## Usage

References:

- https://github.com/shaka-project/shaka-packager/blob/main/packager/media/base/widevine_pssh_data.proto

- https://learn.microsoft.com/en-us/playready/specifications/playready-header-specification

Either pipe input via STDIN, or use `-input [file]` to specify a filename. Accepts mp4 and raw pssh/pro paylods (with or without base64 encoding).

Use `-verbose` or `-debug` for debug logging.

Use `-pretty=false` to disable pretty-printing (one line per header object printed).