[qutebrowser] Youtube HTML5 video playback

[Tony Power]

Hi there,

Nice browser! Having some issue with HTML5 video playback on Youtube
though, wondering if I'm missing something simple.

Video screen is black, video duration displays Nan:Nan:Nan

Qutebrowser version - 0.6.2

OS - Debian Jessie

Gstreamer plugins installed :

gir1.2-gstreamer-0.10                 0.10.36-1.5
gir1.2-gstreamer-1.0                  1.4.4-2
gstreamer0.10-alsa:amd64              0.10.36-2
gstreamer0.10-gconf:amd64             0.10.31-3+nmu4+b1
gstreamer0.10-plugins-bad:amd64       0.10.23-7.4
gstreamer0.10-plugins-base:amd64      0.10.36-2
gstreamer0.10-plugins-good:amd64      0.10.31-3+nmu4+b1
gstreamer0.10-pulseaudio:amd64        0.10.31-3+nmu4+b1
gstreamer0.10-x:amd64                 0.10.36-2
gstreamer1.0-clutter                  2.0.12-1
gstreamer1.0-libav:amd64              1:1.4.5-dmo1
gstreamer1.0-plugins-bad:amd64        1.4.4-2.1+b1
gstreamer1.0-plugins-base:amd64       1.4.4-2
gstreamer1.0-plugins-base:i386        1.4.4-2
gstreamer1.0-plugins-good:amd64       1.4.4-2
gstreamer1.0-plugins-ugly:amd64       1.4.4-2+b1
gstreamer1.0-x:amd64                  1.4.4-2
libgstreamer-plugins-bad0.10-0:amd64  0.10.23-7.4
libgstreamer-plugins-bad1.0-0:amd64   1.4.4-2.1+b1
libgstreamer-plugins-base0.10-0:amd64 0.10.36-2
libgstreamer-plugins-base0.10-0:i386  0.10.36-2
libgstreamer-plugins-base0.10-dev     0.10.36-2
libgstreamer-plugins-base1.0-0:amd64  1.4.4-2
libgstreamer-plugins-base1.0-0:i386   1.4.4-2
libgstreamer0.10-0:amd64              0.10.36-1.5
libgstreamer0.10-0:i386               0.10.36-1.5
libgstreamer0.10-dev                  0.10.36-1.5
libgstreamer1.0-0:amd64               1.4.4-2
libgstreamer1.0-0:i386                1.4.4-2
libreoffice-avmedia-backend-gstreamer 1:4.3.3-2+deb8u4

Youtube HTML5 browser support page displays :

HTML VideoElement - YES
H.264 - YES
WebM VP8 - YES

Media Source Extensions - NO
MSE & H.264 - NO
MSE & WebM VP9 - NO


Any idea what the problem could be, or ideas on what I could try to debug
the problem?

Thanks,

Tony