mixer.com video stream not playing (possible HLS issue)

  • https://mixer.com/Xboxinteractive

    Windows 10 Pro 64-bit. Vivaldi 1.15.1137.3 (Official Build) (64-bit). (GPU doesn't matter in this case, but Intel HD3000)

    Vivaldi (and Opera) don't play the video on that page. Works fine in Chrome. Masking the user agent as Chrome does not help. vivaldi://media-internals doesn't help either as it shows nothing is created.

    The page seems to be using Apple HTTP Live Streaming (HLS) where m3u8 files (served as application/x-mpegURL) specify ranges of bits to play and point to other m3u8 files etc.

    In Chrome, if you go to the network tab in deve tools, disable cache, select the XHR filter and reload, you'll see an HLSmanifest file request. If you download that and look at it with a text editor, you'll see it points to an m3u8 file. If you copy that link and load it in VideoLan for example, you'll see that the video plays (because VLC supports HLS). It's an H.264 stream. I'm not listing the URL to the m3u8 file as it contains access tokens that expire. When testing, you'll need to get a fresh copy.

    The site doesn't directly load a file/stream with the HTML video element in markup and uses JS for all of that. It's hard to tell for sure if it's a lack-of-support issue by Vivaldi (and Opera) or some kind of browser detection error. Maybe someone can check it out. This seems like the same issue that happens with this audio stream (that is supposed to play after the audio ad, but doesn't) on this page https://www.wfmt.com/listen/live-stream/.

    I'm thinking Chrome doesn't have a problem because it uses ffmpeg for all codecs. It works in Firefox too though.

    Also, if someone can test on both a Mac and a Windows PC, I'd be interested in knowing if works for you on Mac while failing on Windows.

    There's an Opera thread for the video issue here.

  • For low latency mode, it looks like the site uses a new faster-than-light streaming protocol. See https://watchbeam.zendesk.com/hc/en-us/articles/209659623-FTL-Faster-Than-Light-streaming-protocol-. But, I think the general issue still might be with HLS support.

    @ruario Could you check to see if the two streams linked above at least work on Linux in Vivaldi? Thanks.

  • Moderator

    Yes, a bug in Vivaldi.
    Reported as: VB-39323 "[Media] video does not play at mixer.com"

  • @gwen-dragon Thanks.

    https://mixer.com/Xboxinteractive is playing now in Opera and Vivaldi, so the site much have changed something. Either that or the link is no longer (at least currently) doing a live stream as regular videos on the site were and still are working on the site. I'll try to find another link on the site.


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