title: HTML5 video player in android application not working in some phone, why?
body: <p>I am using HTML5 video tag with mp4 video, some phone playing this video good... nut some phone not playing this video...</p>
  
  <p><strong>i have doubt that inside the application which video player will work to play</strong>? have any inbuily video player or need to install any codec for that or it using browser video player?</p>