问题
no video with supported format and MIME type found
A huge screen for video is displayed and says the message above. How do I solve this? This happens to me only in Mozilla Fire fox and not on Google Chrome. I am using webm videos and mp4 videos.
This is for html5 video.
回答1:
The webserver might not be sending the correct MIME types. Depending on the server you may be able to add a .htaccess file with the following:
AddType video/webm .webm
AddType video/mp4 .mp4
If that doesn't work try searching for "server mime types".
回答2:
Go to IIS Manager. Click MIME Types Under IIS. Click Add Button. Enter the following Details.
File Name Extension: .webm MIME Type: video/webm
Again Add, File Name Extension: .ogv MIME Type: video/ogg
And File Name Extension: .mp4 MIME Type: video/mp4
回答3:
<html>
<head></head>
<body>
<video width="320" height="240" controls>
<source src="ho.mp4" type="video/mp4">
<source src="ho.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>
</body>
</html>
this code worked fine for me...Found it from w3schools.com...Incase you still have issues try to add the mime types in the iis manager
回答4:
I have the same problem and this is how I fix it: Open: "C:\Users\DuongKiet\Documents\IISExpress\config\applicationhost.config" --> where "C:\Users\DuongKiet\" depends on your folder name.
Edit applicationhost.config, go to this line:
<mimeMap fileExtension=".mp3" mimeType="audio/mpeg" />
then insert this line below:
<mimeMap fileExtension=".webm" mimeType="video/webm" /> --> problemo solved
In case you cannot locate the folder, just follow this link for instruction how to add a new mime type: http://www.misfitgeek.com/use-html5-video-tags-in-your-asp-net-applications/
来源：https://stackoverflow.com/questions/10424729/no-video-with-supported-format-and-mime-type-found-what-does-this-mean-and-how