4 ms·

I am pretty sure that Firefox 28 added VP9. It just seems odd that in the "Where can I use VP9?" section, that Firefox and Opera where not mentioned. Edit: I j

I am pretty sure that Firefox 28 added VP9. It just seems odd that in the "Where can I use VP9?" section, that Firefox and Opera where not mentioned. Edit: I just noticed that Firefox is currently using Flash on Youtube for video playback. The video referenced in the article: https://www.youtube.com/watch?v=pwnefUaKCbc https://www.youtube.com/watch?v=pwnefUaKCbc

0x006A 12y ago
Firefox supports VP9 but currently does not enable VP9 with MediaSourceExtensions (MSE) by default. You can enable the current implementation via a flag set media.mediasource.webm.enabled to true in about:config Youtube only used VP9 with MSE but even then not all content is available as VP9, some is only available as H.264/MSE. You can check https://www.youtube.com/html5 https://www.youtube.com/html5 to see what your browser supports.
- mrinterweb 12y ago
  Thanks for the info. After visiting the Youtube HTML5 support page and clicking "Request the HTML 5 player", and enabling the setting in FF, the VP9 playback is working in FF.
- piyush_soni 12y ago
  Thanks. I did all of that, and I can see that all the formats are checked in my Firefox now. The only question now I have is, how do I know which of these formats is my YouTube video currently playing in? (It does show the HTML5 player now).
  - mkagenius 12y ago
    Right click on video --> stats for nerds --> MimeType will show codecs as vp9. offtopic: I could see download rate at 9363 Kbps (or nearly 1.2 MBPS) for a 1080p video, which looks like pretty good compression to me.
    - piyush_soni 12y ago
      Wow. Thanks, I can see it's playing in vp9 now :).
    - edwintorok 12y ago
      FWIW after enabling MSE, playing a 4k video, and opening 'stats for nerds' and switching away and back to firefox (Iceweasel 31.6.0) on Debian jessie the browser locks up at 100% cpu usage.

4 ms·

I am pretty sure that Firefox 28 added VP9. It just seems odd that in the "Where can I use VP9?" section, that Firefox and Opera where not mentioned. Edit: I j

by mrinterweb 12y ago

0x006A 12y ago
Firefox supports VP9 but currently does not enable VP9 with MediaSourceExtensions (MSE) by default. You can enable the current implementation via a flag set media.mediasource.webm.enabled to true in about:config Youtube only used VP9 with MSE but even then not all content is available as VP9, some is only available as H.264/MSE. You can check https://www.youtube.com/html5 https://www.youtube.com/html5 to see what your browser supports.
- mrinterweb 12y ago
  Thanks for the info. After visiting the Youtube HTML5 support page and clicking "Request the HTML 5 player", and enabling the setting in FF, the VP9 playback is working in FF.
- piyush_soni 12y ago
  Thanks. I did all of that, and I can see that all the formats are checked in my Firefox now. The only question now I have is, how do I know which of these formats is my YouTube video currently playing in? (It does show the HTML5 player now).
  - mkagenius 12y ago
    Right click on video --> stats for nerds --> MimeType will show codecs as vp9. offtopic: I could see download rate at 9363 Kbps (or nearly 1.2 MBPS) for a 1080p video, which looks like pretty good compression to me.
    - piyush_soni 12y ago
      Wow. Thanks, I can see it's playing in vp9 now :).
    - edwintorok 12y ago
      FWIW after enabling MSE, playing a 4k video, and opening 'stats for nerds' and switching away and back to firefox (Iceweasel 31.6.0) on Debian jessie the browser locks up at 100% cpu usage.