HTML5视频的多个音轨 [英] Multiple audio tracks for HTML5 video

问题描述

我正在使用HTML5为我的网站制作视频.理想情况下，我将只有一个无声视频文件，以及五个与视频同步的不同语言的音轨.

I'm building a video for my website with HTML5. Ideally, I'd have only one silent video file, and five different audio tracks in different languages that sync up with the video.

然后，我将有一个按钮，即使在播放视频时，该按钮也允许用户在音轨之间切换；这样，正确的音轨就会变得栩栩如生(无需暂停视频或重新开始播放视频，就像DVD音轨选择一样).

Then I'd have a button that allows users to switch between audio tracks, even as the video is playing; and the correct audio track would come to life (without the video pausing or starting over or anything; much like a DVD audio track selection).

我可以在Flash中非常简单地执行此操作，但是我不想这样做.必须有一种在纯HTML5或HTML5 + jQuery中执行此操作的方法.我想您会以0的音量播放所有音频文件，而只会增加活动音轨的音量...但是我什至不知道该怎么做，更不用说在用户暂停或倒带时处理它了视频...

I can do this quite simply in Flash, but I don't want to. There has to be a way to do this in pure HTML5 or HTML5+jQuery. I'm thinking you'd play all the audio files at 0 volume, and only increase the volume of the active track... but I don't know how to even do that, let alone handle it when the user pauses or rewinds the video...

提前谢谢！

推荐答案

如果您愿意下载所有五首曲目，为什么不将它们混音到视频中呢?视频不限于单个音轨(甚至AVI也可以创建多个音轨).然后应该为您处理同步.您只需根据需要启用/禁用音轨.

If you're willing to let all five tracks download, why not just mux them into the video? Videos are not limited to a single audio track (even AVI could do multiple audio tracks). Then syncing should be handled for you. You'd just enable/disable the audio tracks as needed.

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