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

首先在 macOS 11.7.10 上复现 Movie Maker II 的安装和电影创建，然后检查已安装 ffmpeg 的权限和 CPU 架构。附带的可执行文件无需手动执行 chmod 或替换即可运行，并且 Movie Maker 能够成功创建 QuickTime 电影，即表示完成。