Home Web Front-end H5 Tutorial How to solve the problem that the video tag in HTML5 cannot play videos

How to solve the problem that the video tag in HTML5 cannot play videos

May 15, 2018 am 10:31 AM
html5 video Label

This article mainly introduces to you how to solve the problem that the video tag in HTML5 cannot play MP4. The introduction in the article is very detailed. I believe it will have certain reference and learning value for everyone's study or work. Friends who need it can follow Let’s take a look together.

Preface

Recently I discovered a problem. I recorded a 1.mp4 file on my mobile phone and it can be played normally by mainstream browsers. But using the format factory to transcode the rmvb file into 2.mp4 cannot be played. The solution was finally solved by searching for relevant information. I will share it below for your reference and study. Let’s take a look at the detailed introduction:

Problem Analysis

Video attributes recorded by mobile phone:


Video attributes transcoded by the format factory:


First eliminate code problems, path problems, browser incompatibility and other problems. The transcoded video encoding is mp4v, which is why it cannot be played. Just convert it to AVC (H264) encoding.

Check the documentation for the video formats and encodings supported by the video tag:

  • MPEG4 = with H.264 video encoding and AAC audio Encoded MPEG4 file

  • WebM = WebM file with VP8 video encoding and Vorbis audio encoding

  • Ogg = With Theora video encoding and Vorbis audio encoded Ogg file

Through the above information, we found that there are only h264 encoded MP4 videos (MPEG-LA company), VP8 encoded webm format videos (Google company ) and Theora-encoded ogg format video (iTouch development) can support the html5

Solution

The video tag allows multiple source elements. The source element can link different video files. The browser will use the first one. Recognizable format, which can be used to resolve browser compatibility issues.

<video controls="controls" width="100%">
  <source src="1.mp4" type="video/mp4">
  <source src="1.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>
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