[vlc-devel] Difference between --sub-filter and --sub-source

[Peter Tap]

Folks,

What is the difference between "--sub-filter" and "--sub-source" command line options?

In my case, I have developed a video filter that displays text on screen. This is very similar to the marquee filter. However, when I run vlc, just --sub-filter="mytest" or --sub-source="mytest" doesn't work. I need to specify both the options to get my filter to work. I am just trying to understand why I need both these options.

Thank you in advance for your help.

Regards,
Peter
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