pssh-tools-cli

Command Line Tools to decode PSSH Data and PSSH Box

For dealing with multi-drm using common encryption (cenc) we may need to encode or decode pssh data and/or pssh box to use in our workflow. This tools is written to help that process.

Installation

This command line is installed via npm:

$ npm install -g pssh-tools-cli

CLI Help

$ psshtools --help

Supported PSSH

Currently we're only focus on Widevine and PlayReady but we will support more in the future.

Development

$ npm run build   # lint + type-check + compile to build/
$ npm test        # lint + type-check + run the unit tests (node:test)

The test suite (test/cli.test.ts) covers the key-id endianness helpers, the Commander option definitions, and every command branch (-k, -e -r, -e -w, -P -d, -W -d, -p) by driving run() and asserting on the captured output. It runs on the built-in Node.js test runner with no extra dependencies (Node.js executes the TypeScript sources directly).

Releasing

Publishing is done from the CLI with an automatic version bump. Commit everything first (the working tree must be clean), then run one of:

$ npm run release        # patch bump  (1.1.0 -> 1.1.1)
$ npm run release:minor  # minor bump  (1.1.0 -> 1.2.0)
$ npm run release:major  # major bump  (1.1.0 -> 2.0.0)

Each command runs the build, bumps the version in package.json / package-lock.json, creates the vX.Y.Z commit and git tag, publishes the package to npm, and finally pushes the commit and tag with git push --follow-tags. Make sure you are logged in first with npm login.