为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

Html5 h264 video hardware acceleration not working

  • 3 个回答
  • 2 人有此问题
  • 11 次查看
  • 最后回复者为 alez

more options

Firefox nightly 45.0a1; Windows 10; Direct2D Enabled: true; Video example: https://www.youtube.com/watch?v=5CCOkiaqL0g

Firefox doesn't use hardware acceleration for html5 h264 codec videos. Cuz of that i got 100% CPU usage and freezing video playback. Chrome or Edge has about 15% CPU usage on same videos and smooth playback. Is it possible to fix it by myself or is it software bug?

Firefox nightly 45.0a1; Windows 10; Direct2D Enabled: true; Video example: https://www.youtube.com/watch?v=5CCOkiaqL0g Firefox doesn't use hardware acceleration for html5 h264 codec videos. Cuz of that i got 100% CPU usage and freezing video playback. Chrome or Edge has about 15% CPU usage on same videos and smooth playback. Is it possible to fix it by myself or is it software bug?

所有回复 (3)

more options

Hi alez could you first check if the hardware acceleration is checked in:

about:preferences#advanced (type this in address bar) and see if "use hardware acceleration when possible" is checked. ______________________ Also, could you take a screenshot from : https://www.youtube.com/html5 ______________________ Are you using flash player or html5 to watch youtube?

more options

logglog said

Hi alez could you first check if the hardware acceleration is checked in: about:preferences#advanced (type this in address bar) and see if "use hardware acceleration when possible" is checked. Also, could you take a screenshot from : https://www.youtube.com/html5 Are you using flash player or html5 to watch youtube?

"Use hardware acceleration when available" is checked. ______________________ "https://www.youtube.com/html5" everything is supported besides "MSE & WebM VP9 " ______________________ i'm using html5 player with h264 codec, not vp9.

more options

Found that firefox modification https://pcxfirefox.wordpress.com/ Works like a charm! So it is a software bug in current firefox version.