<audio>
and <video>
tags without Javascript.video/3gpp; codecs="s263,samr"
<video preload="auto" controls="controls">
<source src="https://woolyss.com/f/h263-amr-small.3gp" type='video/3gpp; codecs="s263,samr"'>
</video>
HTMLMediaElement.canPlayType('video/3gpp; codecs="s263,samr"')
→ MediaSource.isTypeSupported('video/3gpp; codecs="s263,samr"')
→