什么是HTML5 Video Speed permanent Control？

HTML5 Video Speed permanent Control是由SL5开发的Chrome扩展程序，该扩展的主要功能是“Speed controls for html5 video with memory effect.”。

扩展截图

下载HTML5 Video Speed permanent Control扩展crx文件

下载HTML5 Video Speed permanent Control扩展crx格式的文件，手动将Chrome插件安装到浏览器中，也可以将crx文件分享给朋友，轻松安装Chrome插件。

扩展使用说明

For changing the video speed
you could use the follwoing keys and the mouse:

shortcuts list:

key=speed

0=0, 1=1, 2=2, 3=3, ... 8=8, 9=9
*=double, /=half
right=+0.1, left=-0.1, up=+0.5, down=+0.5
pageUp = +10, pageDown= -10

First time you change the speed of a video you need to use the mouse (left clicks inside the control).
Control is visible at the top left of current video.

Later you could use the shortcuts.

Its remembers speed for nearly all following videos, all playlists or so. Enjoy

if its not clicked the google default novigation shortcuts are active.
for example:
Numbers 1-9 - Go forward a percentage (1 goes forward 10%, 2 goes forward 20%, etc.).
Right arrow - Go forward 5 seconds.
More details see here https://sites.google.com/a/umich.edu/going-google/accessibility/google-keyboard-shortcuts---youtube

Its tested with Google Chrome Version 42.0.2311.90

扩展基本信息

名称	HTML5 Video Speed permanent Control
ID	cckfpdhbllgmnkoiegmbihfemegbdncp
官方URL	https://chrome.google.com/webstore/detail/html5-video-speed-permane/cckfpdhbllgmnkoiegmbihfemegbdncp
简介	Speed controls for html5 video with memory effect.
文件大小	163 KB
安装次数	106
当前版本	1.0.2
更新时间	2015-04-30
上架时间	2015-04-30
评分	2.40/5 共5次评分
开发者	SL5
付费类型	free
支持的语言	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "name": "HTML5 Video Speed permanent Control", "description": "Speed controls for html5 video with memory effect.", "short_name": "permanent Video Speed", "version": "1.0.2", "permissions": [ "activeTab" ], "content_scripts": [ { "matches": [ "http:\/\/\/", "https:\/\/\/", "" ], "css": [ "style.css" ], "js": [ "speed_control.js" ], "all_frames": true } ], "icons": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" } }