- There are some filters' arguments whose enum values are shown as commas (`,`) instead of bar (`|`). This comes from `constants.h`. I've tried to change it but it broke something else and I cannot find what is affected by this.
- Some enum values are also listed as `uint` but actually they are string. In the code this `uint` is used as index to get the proper value. Wouldn't make more sense to convert these to `str` type?

I've listed the affected filters in the attached JSONs.
[uints.json](https://github.com/gpac/gpac/files/14488390/uints.json)
[comma.json](https://github.com/gpac/gpac/files/14488393/comma.json)

Formatting of some arguments' help
This is a GitHub Issue
repo:gpac
owner:gpac
Title : Formatting of some arguments' help
Issue date:

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- There are some filters' arguments whose enum values are shown as commas (`,`) instead of bar (`|`). This comes from `constants.h`. I've tried to change it but it broke something else and I cannot find what is affected by this.
- Some enum values are also listed as `uint` but actually they are string. In the code this `uint` is used as index to get the proper value. Wouldn't make more sense to convert these to `str` type?

I've listed the affected filters in the attached JSONs.
[uints.json](https://github.com/gpac/gpac/files/14488390/uints.json)
[comma.json](https://github.com/gpac/gpac/files/14488393/comma.json)

--- end body ---
