YouTube视频的播放速度控制? HTML5? [英] Playback speed control for YouTube videos? HTML5?
问题描述
我需要为youtube视频实现一个视频播放速度控制器(例如:以1/2速度播放视频),我认为HTML5是目前唯一可行的方法(如果可能的话)。我对HTML5视频知之甚少,但我对youtube js API了解很多。谁能指出我正确的方向?如果解决方案只适用于某些浏览器,那也没关系。
I need to implement a video playback speed controller (e.g.: play the video at 1/2 speed) for youtube videos, and I'm thinking that HTML5 is currently the only way to do this (if it's even possible). I know very little about HTML5 video, but I know a lot about the youtube js API. Can anyone point me in the right direction? It's okay if the solution will only work in some browsers.
推荐答案
新的iframe api允许您控制视频的速度:
The new iframe api allows you to control the speed of the video:
默认播放率为1,表示视频正常播放。播放率可能包括0.25,0.5,1,1.5和2等值。
The default playback rate is 1, which indicates that the video is playing at normal speed. Playback rates may include values like 0.25, 0.5, 1, 1.5, and 2.
此外:
调用此函数并不能保证回放率实际发生变化。
Calling this function does not guarantee that the playback rate will actually change.
示例代码:
function onYouTubeIframeAPIReady() {
var player;
player = new YT.Player('player', {
videoId: 'M7lc1UVf-VE',
playerVars: { 'autoplay': 1, 'controls': 0 },
events: {
'onReady': function(e){
// e.target = player
e.target.setPlaybackRate(0.5); // set to half speed
e.target.playVideo(); // watch lolcats in slow motion :)
},
}
});
}
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