Issues with FFmpeg (and Movie Maker) - need chmod and the binary is the wrong CPU type

Most appropriate sub-area of Processing 4?

Utilities

Processing version

4.4.4

Operating system

MacOS 11.7.10 (Big Sur)

Steps to reproduce this

1.Install 'Movie Maker II' via Tools > Manage Tools.
2.Run Movie Maker.
3. Movie Maker gives the error 'Creating the QuickTime movie failed. Cannot run program "... frmpeg": error=13, Permission denied'
4. Use 'ls' in Terminal to view ffmpeg's permissions. They are '-rw-r--r--'.
5. Use 'chmod' in Terminal to change ffmpeg's permissions to '-rwxr--r-'.
6. Run Movie Maker again.
7. Movie Maker gives the error 'Creating the QuickTime movie failed. Cannot run program "... frmpeg": error=86, bad CPU type in executable.'
8. If I download the 'static FFmpeg binary for macOS 64-bit Intel' from https://evermeet.cx/ffmpeg/ and replace the existing 'ffmpeg', Movie Maker works okay.

snippet

Additional context

Thanks!

Would you like to work on the issue?

No

まず macOS 11.7.10 で Movie Maker II のインストールと動画の作成を再現し、その後、インストールされた ffmpeg の権限と CPU アーキテクチャを確認します。付属の実行ファイルが手動で chmod を実行したり置き換えたりせずに実行でき、Movie Maker が QuickTime ムービーを正常に作成できれば完了です。