Twitch streams showing Commercial Break In Progress video

• This is a bug report and I have read the contribution guidelines.

Description

When launching a Twitch stream you’re shown a Commercial Break video before the actual stream starts playing. This behavior started tonight.

Expected / Actual behavior

The commercial video is expected to be ignored.

Reproduction steps / Explicit stream URLs to test

Launch a Twitch stream.

Log output

C:\Users\User>streamlink https://www.twitch.tv/esl_csgo best --loglevel debug
[cli][debug] OS:         Windows 10
[cli][debug] Python:     3.6.6
[cli][debug] Streamlink: 1.3.1
[cli][debug] Requests(2.22.0), Socks(1.7.1), Websocket(0.57.0)
[cli][info] Found matching plugin twitch for URL https://www.twitch.tv/esl_csgo
[plugin.twitch][debug] Getting live HLS streams for esl_csgo
[utils.l10n][debug] Language code: sv_SE
[cli][info] Available streams: audio_only, 160p (worst), 360p, 480p, 720p, 720p60, 1080p60 (best)
[cli][info] Opening stream: 1080p60 (hls)
[stream.hls][debug] Reloading playlist
[stream.hls][debug] First Sequence: 0; Last Sequence: 2
[stream.hls][debug] Start offset: 0; Duration: None; Start Sequence: 0; End Sequence: None
[stream.hls][debug] Adding segment 0 to queue
[cli][debug] Pre-buffering 8192 bytes
[stream.hls][debug] Adding segment 1 to queue
[stream.hls][debug] Adding segment 2 to queue
[stream.hls][debug] Download of segment 0 complete
[cli][info] Starting player: "C:\Program Files\VideoLAN\VLC\vlc.exe"
[cli.output][debug] Opening subprocess: "C:\Program Files\VideoLAN\VLC\vlc.exe" --input-title-format https://www.twitch.tv/esl_csgo -
[stream.hls][debug] Download of segment 1 complete
[stream.hls][debug] Download of segment 2 complete
[cli][debug] Writing stream to output
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 3 to queue
[stream.hls][debug] Download of segment 3 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 4 to queue
[stream.hls][debug] Adding segment 5 to queue
[stream.hls][debug] Adding segment 6 to queue
[stream.hls][debug] Download of segment 4 complete
[stream.hls][debug] Download of segment 5 complete
[stream.hls][debug] Download of segment 6 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 7 to queue
[stream.hls][debug] Adding segment 8 to queue
[stream.hls][debug] Download of segment 7 complete
[stream.hls][debug] Download of segment 8 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 9 to queue
[stream.hls][debug] Adding segment 10 to queue
[stream.hls][debug] Adding segment 11 to queue
[stream.hls][debug] Download of segment 9 complete
[stream.hls][debug] Download of segment 10 complete
[stream.hls][debug] Download of segment 11 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 12 to queue
[stream.hls][debug] Adding segment 13 to queue
[stream.hls][debug] Download of segment 12 complete
[stream.hls][debug] Download of segment 13 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 14 to queue
[stream.hls][debug] Adding segment 15 to queue
[stream.hls][debug] Adding segment 16 to queue
[stream.hls][debug] Download of segment 14 complete
[stream.hls][debug] Download of segment 15 complete
[stream.hls][debug] Download of segment 16 complete
[stream.hls][debug] Reloading playlist
[stream.hls][debug] Adding segment 17 to queue
[stream.hls][debug] Adding segment 18 to queue
[stream.hls][debug] Download of segment 17 complete
[stream.hls][debug] Download of segment 18 complete
[cli][info] Player closed
[stream.segmented][debug] Closing worker thread
[stream.segmented][debug] Closing writer thread
[stream.segmented][debug] Closing writer thread
[cli][info] Stream ended
[cli][info] Closing currently open stream...

Screenshot

[bastimeyer]

Please don’t post “+1”, “same”, “me too” or other unrelated stuff. It’s not useful and just spams the thread.

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@4dams Authentication is not supported anymore since Streamlink’s 1.3.0 release and using the parameters doesn’t have any effect anymore, as you can read here: https://github.com/streamlink/streamlink/issues/2680#issuecomment-557605851 Also #2846

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I’m currently working on a patch that blocks the “Commerical Break In Progress” segments. It’s already working but not yet finished. Problem is that it delays the stream launch until the real stream is available, which can take up to half a minute. Should fix any player issues caused by the stream discontinuity though.

[4AM-Campfire]

The ads (well, the purple screen) seem to have stopped for me, both the pre- and mid-steam ones. The channels where I consistently saw them earlier no longer show them.

I’ve changed nothing on my end.