stremio: add ffmpeg as runtime dependency to PATH

[rafaelrc7]

Description of changes

Stremio depends on ffmpeg for features such as streaming to a chromecast. Without ffmpeg, when trying to stream to a chromecast, it never loads, when adding ffmpeg to PATH (for example in an ad-hoc nix shell), the feature works fine.

So, this PR wraps the derivation executable with ffmpeg binaries added to PATH.

This dependency can also be confirmed by seeing some of the official build scripts, that list both the ffmpeg and ffprobe (the latter is also included in the ffmpeg package) binaries:

• AppImage
• Windows
• Arch Linux

I also split the derivation arguments into multiple lines, as the list was already pretty long, and I had to add a new dependency.

Another missing dependency seems to be openssl. However, when searching the code, it seems only to be used for the autoupdate feature, which will not be useful in the nix package, so I believe it would be fine to not include it.

• autoupdater.cpp
• verifysig.c

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.05 Release Notes (or backporting 23.05 and 23.11 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

---

Add a 👍 reaction to pull requests you find important.

[rafaelrc7]

I also added the backport release-23.11 as this fixes a derivation bug, as described above, and so I believe it should be backported when merged.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/3032/3634

[github-actions]

Successfully created backport PR for release-23.11:

• [Backport release-23.11] stremio: add ffmpeg as runtime dependency to PATH #297998