If you are using HTML5, using the Video tag is suitable for this purpose.
You can use the Video Tag this way for no autoplay:
<video width="320" height="240" controls>
<source src="videos/example.mp4" type="video/mp4">
</video>
To enable auto-play,
<video width="320" height="240" controls autoplay>
<source src="videos/example.mp4" type="video/mp4">
</video>