Discover codec-specific and generic codec options

[Zipdox2]

How can I discover codec specific options like the ones printed with ffmpeg -h encoder=flac? Additionally, how can I discover and set generic codec options like the ones printed after AVCodecContext AVOptions: when running ffmpeg -h full?

[calllivecn]

Similarly, I also need this feature very much. The ability to discover codec-specific and generic codec options is crucial for using PyAV for video and audio processing. I hope developers can implement this feature as soon as possible so that we can use PyAV more efficiently.