Share the problem and solution for a video tag that cannot play mp4

This article mainly introduces to you how to solve the problem that the video tag cannot play mp4 in html5. The introduction in the article is very detailed. I believe it will have certain reference value for everyone's study or work. , friends who need it can come and take a look below.

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

手机recordedVideoAttributes:

Video attributes for formatting factory transcoding:

First eliminate code problems, path problems, browser incompatibility, etc. 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

  AudioEncoded MPEG4 file

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

• Ogg = Ogg files with Theora video encoding and Vorbis audio encoding

  
  

Through the above information, we found that there are only h264 encoded MP4 videos (MPEG-LA company), VP8 encoded webm format video (Google company) and Theora encoded ogg format video (iTouch development) can support the html5 39000f942b2545a5315c57fa3276f220 tag.

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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