Playing videos not possible on Windows [again]

  • Hi,

    in the current builds for windows there's the playback of videos is sometimes not possible. Please check this link:

    Steps to reproduce:

    • click the provided link
    • the page loads and a thumbnail of the video will be displayed
    • click on the video thumbnail
    • A message gets dispayed "Video cannot be loaded"

    I use Windows 10 Enterprise and the 32 bit version of vivdaldi and I tried already:

    • installing flash
    • installing windows media feature pack
    • I tried also another browser called Iridium which is based on chromium with the same behaviour
    • Checked the playback of the video in Chrome -> no error

    No success so far. Who can help?

    Thank you!

  • Moderator

    Schade für dich. Sorry for your video problems, but ...
    Golem video plays on my Windows 10 Pro x64 with Vivaldi 1.5.655.3 (32bit).

    1. Which Vivaldi version?
    2. Did you deactivate hardware acceleration?
      Inspect vivaldi://chrome/settings/search#hardw
    3. GPU problems?
      Watch out for red entries in vivaldi://gpu
    4. Acceleration for video decode problems?
      Open vivaldi://flags/#disable-accelerated-video-decode
      Change flag

  • Hi!

    Thanks for your answer. My answers to your questions:

    1. Vivaldi: 1.5.655.3
    2. No
    3. Yes looks like it: accelerated_vpx_decode was deactivated.

    Seems like the following chromium bugs are responsible for that:

    • VPx decoding is too slow on Intel Broadwell, Skylake, and CherryView: 616318
    • Accelerated VPx decoding is hanging on some videos.: 654111

    Graphics Feature Status
    Canvas: Hardware accelerated
    Flash: Hardware accelerated
    Flash Stage3D: Hardware accelerated
    Flash Stage3D Baseline profile: Hardware accelerated
    Compositing: Hardware accelerated
    Multiple Raster Threads: Enabled
    Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
    Rasterization: Software only. Hardware acceleration disabled
    Video Decode: Hardware accelerated
    Video Encode: Hardware accelerated
    VPx Video Decode: Software only, hardware acceleration unavailable
    WebGL: Hardware accelerated
    Driver Bug Workarounds

    1. Activated

    So the conclustion is, without the GPU hardware acceleration activated no video playback?


  • Moderator

    I fear you need VP8 decoding for some videos.

    I will ask a developer what could be done for you.

  • Moderator

    Do the two videos (VP8 and VP9) on Sample.html play?

  • @Gwen-Dragon Thank you! I checked Wikipedia for VP8 ant it should be supported by Chromium and thus by Vivaldi too.

  • Moderator

    The Vivaldi developer said that is should work with software decode.

    Try this:
    Open vivaldi://flags/#disable-accelerated-video-decode
    Restart Vivaldi

    Does it play now?

    Open vivaldi://chrome/settings/search#hardw
    Untick hardware acceleration
    restart Vivaldi

    Does it play now?

    if it does not show, it is a Chrom(ium) 54 bug which cant be fixed by Vivaldi Devs.

  • The mentioned video is a MP4 .h264 video. VPx is not needed for those at all.
    I did not jump through the burning hoops to download and analyze what the exact settings in the h264 are, but I assume they tinkered around a bit with that.

    @alexthegreat can you check on if the h264 video works?

  • @QuHno : No it's not working. I just see an empty video player. Thank you!

  • @Gwen-Dragon Thank you again! I disabled both options but without success. I understand that some errors can be fixed by the Vivaldi team if they are related to chromium. And I think there some hints that this could be the case, because in the Iridium browser the videos are also not working. But there's a new snapshot for Vivaldi available. I will try this now. 🙂

  • @alexthegreat If installing the newer version that does not help, maybe installing the K-lite codec pack Basic (no need for the other ones) might help. I don't recommend installing codecs lightly, because they might break some other things, but if nothing else helps, it might be worth a try. For example Win7 lacks some of the more advanced codecs W10 has included and for some users installing that pack helped.

    Other than that: Chrome can't be used for a fair comparison because it has it's own codecs compiled in.
    Vivaldi can't do that for now because of the quite prohibitive license fees the wants to have.

  • @Gwen-Dragon Yes they are playing well. Thanks!


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