Hi Rajneeshg,
Like Kautuk said Dynamic Media generates multiple variations of a video when you assign any video profile to the folder in AEM, Which in this case OOTB Adaptive Video Encoding. AEM also provides viewer presets ut of box and for video there are only two Video and Video_Social
Video_Social Viewer preset is used when you want to share your video on social networking sites.
Now coming to your question:
1st url:
It is used for HLS Streaming for iOS devices(iphones,ipads)
2nd url:
it is used for progressive video play(android devices)
3rd url:
It is used for desktops with video viewer presets
4th url
It is used for desktop with Video_Social viewer presets(you will get extra buttons to share the video)
Now when you load the page which has Dynamic Media video embedded(AEM/ANY).Based on your OS, Bandwidth, resolution. video will be stream(ios and desktops) and progressive Video Play(for Android) and SPS will intelligently deliver the right url for video.
You can verify this by changing the responsiveness of desktop and reload the page. you will get different urls(s7g10.scene7.com/is /content/*.m3u8 for iOS and desktop) and (s7g10.scene7.com/in/content/*-0*360-800k for android devices)
Hope it helps
Regards,
Manish