How to download a timed duration from live stream using svtplay-dl?

[BosseB]

Sorry if this is off-topic here but I have not found any specific svtplay-dl discussion site...

I am trying to use svtplay-dl to record a live streaming channel for a set duration, but it does not work as intended.

These two commands both run for the intended time (2 minutes):

$ svtplay-dl -P hls -q 1020 -c 2 -o svt1test.mp4 https://www.svtplay.se/kanaler/svt1
$ svtplay-dl -P hls -q 1020 --live -c 2 -o svt1test2.mp4 https://www.svtplay.se/kanaler/svt1

Both commands seem to download data but the resulting mp4 file is silent, no audio!

So I tried leaving out the -P and -q switches to let it decide the stream format by itself, but that results in an error:

$ svtplay-dl --live -c 2 -o svt1test5.mp4 https://www.svtplay.se/kanaler/svt1
INFO: Outfile: svt1test5.mp4.mp4
INFO: Selected to download dash, bitrate: 4720 format: h264
ERROR: This is a live DASH stream, and they are not supported.

Why is DASH not acceptable? And why does HLS not contain the audio?
Very confused now...

I am trying to simplify downloading by using svtplay-dl instead of a more complex ffmpeg command.
So I want to select 640x360 resolution into an mp4 file (NOT .mp4.mp4!) where also the audio should be present (of course).
What am I doing wrong here?

[LZAA]

'svtplay-dl' cannot do this.

[Sorenb]

yt-dlp will download the catchup streams from svt.se You will have to make sure you select the correct audio streams or course, depending on the content you may have swedish audio, original language audio (englis, spanish etc) and audio description.
Keys shouldn't be a problem if you're competent with the commandline tools referenced elsewhere wks-keys) and have an unrevoked cdm key.

mp4decrypt from bento4 will make the files workable, after you've gotten the decryption key, and ffmpeg will combine them.

Good luck.