html - 为什么我的智能手机不能播放视频？

Question

我从帧创建视频，ffmpeg 没有声音:

ffmpeg -f image2 -r 1 -i "img%d.png" -vcodec libx264 -pix_fmt yuv420p -movflags faststart x.mp4

在台式机上，一切顺利。但在智能手机上，Firefox 说:

no video with supported format and MIME type found.

源图像为 1024x768。我能做什么？ HTML5 是:

<video controls autoplay>
<source type="video/mp4" src="/x.mp4"></source>
</video>

Answer 1

1. You must not use the type attribute when calling the video.

2. You must manually call video.play()

3. The video must be encoded to some quite strict parameters; using the iPhone setting on Handbrake with the 'Web Optimized' button checked usually does the trick.

这是html:

<video id="video" autobuffer height="240" width="360">
<source src="BigBuck.m4v">
<source src="BigBuck.webm" type="video/webm">
<source src="BigBuck.theora.ogv" type="video/ogg">
</video>

这是css:

var video = document.getElementById('video');
video.addEventListener('click',function(){
  video.play();
},false);

请看看这个。
HTML5 <video> element on Android