pluto.tv: audio and video async after ad-break

Checklist

• This is a plugin issue and not a different kind of issue
• I have read the contribution guidelines
• I have checked the list of open and recently closed plugin issues
• I have checked the commit log of the master branch

Streamlink version

Latest build from the master branch

Description

I’ve installed the latest master with pip on my ubuntu 21.04 desktop and tested the new pluto.tv plugin. Good work, ads no longer stop the playback from OnDemand videos, but there is still one small issue left, at least on ubuntu. If I playback an OnDemand video with streamlink https://pluto.tv... it finds the plugin and downloads the video. But when the ad starts (black window with colorful font “Werbung” after about 20mins) it shows a few frames of it from the beginning and a few frames from the end of the ad-break. This seems to be only video, because if I download the file with the -o option, it has no timestamps, because of the incomplete GOP in these few frames. If I remux the file with mkvtoolnix, it has timestamps, but then audio and video are out of sync after the ad-break (audio and video are sync before the break). I’ve checked a few movies, all show the same behaviour. If I pipe the stream to ffplay, bad players crash (propably because of the incomplete GOP) at the ad-break, good players show only pixelation for a sec or two.

Is it possible to filter these few ad-frames (“Werbung”), too?

Debug log

./streamlink https://pluto.tv/de/on-demand/movies/meatballs-de-1978-1-1 best 
-o /home/user/Videos/Babyspeck_und_Fleischkloesschen.mp4 -l debug
[cli][debug] OS:         Linux-5.11.0-41-generic-x86_64-with-glibc2.33
[cli][debug] Python:     3.9.5
[cli][debug] Streamlink: 3.0.3+7.ge999ac5
[cli][debug] Requests(2.26.0), Socks(1.7.1), Websocket(1.2.3)
[cli][debug] Arguments:
[cli][debug]  url=https://pluto.tv/de/on-demand/movies/meatballs-de-1978-1-1
[cli][debug]  stream=['best']
[cli][debug]  --loglevel=debug
[cli][debug]  --output=/home/user/Videos/Babyspeck_und_Fleischkloesschen.mp4
[cli][info] Found matching plugin pluto for URL https://pluto.tv/de/on-demand/
movies/meatballs-de-1978-1-1
[plugins.pluto][debug] slug=meatballs-de-1978-1-1
[plugins.pluto][debug] app_version=5.106.0-
f3e2ac48d1dbe8189dc784777108b725b4be6be2
[plugins.pluto][debug] path=/stitch/hls/episode/6041ea2ae7c979001a897fe4/
master.m3u8
[utils.l10n][debug] Language code: de_DE
[cli][info] Available streams: 570k (worst), 1000k, 1500k, 2100k, 3100k (best)
[cli][info] Opening stream: 3100k (hls-pluto)
[stream.hls][debug] Reloading playlist
[cli][debug] Pre-buffering 8192 bytes
[stream.hls][debug] Segments in this playlist are encrypted
[stream.hls][debug] First Sequence: 0; Last Sequence: 1171
[stream.hls][debug] Start offset: 0; Duration: None; Start Sequence: 0; End 
Sequence: 1171
[stream.hls][debug] Adding segment 0 to queue
[stream.hls][debug] Adding segment 1 to queue
[stream.hls][debug] Adding segment 2 to queue
[stream.hls][debug] Adding segment 3 to queue
[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] Adding segment 7 to queue
[stream.hls][debug] Adding segment 8 to queue
[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] Adding segment 12 to queue
[stream.hls][debug] Adding segment 13 to queue
[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] Adding segment 17 to queue
[stream.hls][debug] Adding segment 18 to queue
[stream.hls][debug] Adding segment 19 to queue
[stream.hls][debug] Adding segment 20 to queue
[stream.hls][debug] Adding segment 21 to queue
[stream.hls][debug] Segment 0 complete
[cli][debug] Checking file output
[stream.hls][debug] Adding segment 22 to queue
[cli][debug] Writing stream to output
[stream.hls][debug] Segment 1 complete
[stream.hls][debug] Adding segment 23 to queue
[stream.hls][debug] Segment 2 complete
[stream.hls][debug] Adding segment 24 to queue
[stream.hls][debug] Segment 3 complete
[stream.hls][debug] Adding segment 25 to queue
[download][.._Fleischkloesschen.mp4] Written 3.4 MB (0s @ 4.9 MB/s)                                                                                                                                                                        
[stream.hls][debug] Segment 4 complete
[stream.hls][debug] Adding segment 26 to queue
[stream.hls][debug] Segment 5 complete
[stream.hls][debug] Adding segment 27 to queue
[download][.._Fleischkloesschen.mp4] Written 6.1 MB (1s @ 4.8 MB/s)                                                                                                                                                                        
[stream.hls][debug] Segment 6 complete
[stream.hls][debug] Adding segment 28 to queue
[stream.hls][debug] Segment 7 complete
[stream.hls][debug] Adding segment 29 to queue
[download][.._Fleischkloesschen.mp4] Written 9.2 MB (1s @ 4.8 MB/s)                                                                                                                                                                        
[stream.hls][debug] Segment 8 complete
[stream.hls][debug] Adding segment 30 to queue
[download][.._Fleischkloesschen.mp4] Written 10.7 MB (2s @ 4.2 MB/s)                                                                                                                                                                       
[stream.hls][debug] Segment 9 complete
[stream.hls][debug] Adding segment 31 to queue
[stream.hls][debug] Segment 10 complete
[download][.._Fleischkloesschen.mp4] Written 13.7 MB (3s @ 4.1 MB/s)
[stream.hls][debug] Adding segment 32 to queue
                                                                                                                                                                       [stream.hls]
[debug] Segment 11 complete
[stream.hls][debug] Adding segment 33 to queue
[stream.hls][debug] Segment 12 complete
[download][.._Fleischkloesschen.mp4] Written 16.9 MB (4s @ 4.0 MB/s)
[stream.hls][debug] Adding segment 34 to queue
                                                                                                                                                                       [stream.hls]
[debug] Segment 13 complete
[stream.hls][debug] Adding segment 35 to queue
[stream.hls][debug] Segment 14 complete
[stream.hls][debug] Adding segment 36 to queue
[download][.._Fleischkloesschen.mp4] Written 20.0 MB (4s @ 3.8 MB/s)                                                                                                                                                                       
[stream.hls][debug] Segment 15 complete
[stream.hls][debug] Adding segment 37 to queue
[stream.hls][debug] Segment 16 complete
[download][.._Fleischkloesschen.mp4] Written 23.2 MB (5s @ 3.7 MB/s)
[stream.hls][debug] Adding segment 38 to queue
                                                                                                                                                                       [stream.hls]
[debug] Segment 17 complete
[stream.hls][debug] Adding segment 39 to queue
[stream.hls][debug] Segment 18 complete
[stream.hls][debug] Adding segment 40 to queue
[download][.._Fleischkloesschen.mp4] Written 26.1 MB (6s @ 4.3 MB/s)     
...

[pcolmer]

I could look at removing them also. It depends what the overall consensus of the Pluto plugin users is. I have no view one way or the other.

Is there any way of passing a command line option to control this behaviour? I think that recordings probably don’t want them but live streaming might?

[mkbloke]

Sorry, I should have been a bit more clear (my bad) - the retaining of the bumpers was by request, not technical necessity.

I don’t know why @AdamNo wanted to keep them. Perhaps it’s because it makes it obvious that the adverts are currently playing when you see the first one. Without them it would not be clear whether the video had stopped for the adverts or some other reason.

I could look at removing them also. It depends what the overall consensus of the Pluto plugin users is. I have no view one way or the other.