Update script for new urls from the websites

[noahsmindfuck]

The url's have changed. Apparently the url from the script 'url': 'https://stream.wien.gv.at/live/ngrp:bv' + district_str_lz + '.stream_all/playlist.m3u8' is not valid anymore or at least not for all streams (needs to be tested).

one example link looks like this: src="https://z4atvie10swse101.rtccdn.com/pidbv/smil:pidbv_1060.smil/playlist.m3u8"

also, one was able to view the stream here so maybe that is another valid source: https://pidbv.justlive.tv/player.php?stream=bv1060

TODO:

• [ ] use the next dates of the bv sessions to capture the possible live stream urls
• [ ] write a regexp that validates the url parametes against the districts array, maybe add possibel parameters/strings like 'bv', 'm3u8', etc to an array to check the url against
• [ ] maybe use python requests to figure out which kind of url we have and to navigate to the respective and maybe even updating links to the streams
• [ ] rewrite the capture function on those streams

Possible help:

• SMIL adaptive streaming might be involved and I don't know what it is (see url above), random stackoverflow question that has some info maybe

[fleimgruber]

I tested the URL https://z4atvie10swse101.rtccdn.com/pidbv/smil:pidbv_1060.smil/playlist.m3u8 with ffmpeg (which is what youtube-dl would call eventually, IIUC):

ffmpeg -protocol_whitelist file,http,https,tcp,tls -allowed_extensions ALL -i https://z4atvie10swse101.rtccdn.com/pidbv/smil:pidbv_1060.smil/playlist.m3u8 -bsf:a aac_adtstoasc -c copy out.mp4

which gives 404s indicating that these are not available after the live stream ended, same as in https://pidbv.justlive.tv/player.php?stream=bv1060.

I will keep the ffmpeg command handy as a quick way to test "segments" as soon as they are supposed to be live.

[fleimgruber]

I am able to reproduce the behavior in https://github.com/linkswien/demotape/issues/1#issuecomment-2169499895 using https://pidbv.justlive.tv/player.php?stream=bv1020, see also https://github.com/fleimgruber/demotape/commit/726660b8d592244f319985cabc8ec6e09710fa3e.

Moving forward, I would wait for the next Bezirksvertretungssitzung Leopoldstadt on 25th of June 2024 at 5 pm and test manually as well as automated.

@noahsmindfuck I think with "use the next dates of the bv sessions to capture the possible live stream urls" we would be able to know when to check the justlive URLs directly and we might get away without any regexp'ing on streams.

[fleimgruber]

It turns out ffmpeg can't directly work with the https://pidbv.justlive.tv/player.php?stream=bv1020 URLs, but maybe youtube-dl handles m3u8 parsing directly. If not, I prepared a regexp here: https://github.com/fleimgruber/demotape/commit/d42bd72d300921f9817396371204eaacb791500c.