Use audio track selected by MPV about trim.lua

[aerobounce]

Good point.
Could you try rewrite those lines:

trim.lua/trim.lua

Lines 399 to 401 in 473c9b1

	"-map", "v:0?",
	"-map", "a:0?",
	"-c", "copy",

into:

        "-c", "copy",
        "-map", "0",

[Asinin3]

-map 0 will just map every track, so all video, audio, subtitle etc will be copied over.
I suggest looking at https://github.com/ekisu/mpv-webm as this script has the functionality of finding the selected mpv track

[aerobounce]

Ah. Excuse me.
However, "Use selected track" will not be happen with this script, as my strong philosophy with this script is to export it as it is — except it is a trim.

Seems you know ffmpeg syntax well, it shouldn't be hard for you to modify the script.