Quality of Service (QoS): Measurements of Video Streaming

Nowadays video streaming is growing over the social clouds,
where end-users always want to share High Definition (HD)
videos among friends. Mostly videos were recorded via
smartphones and other HD devices and short time videos have a
big file size. The big file size of videos required high bandwidth
to upload and download on the Internet and also required more
time to load in a web page for play. So avoiding this problem
social cloud compress videos during the upload for smooth play
and fast loading in a web page. Compression decreases the video
quality which also decreases the quality of experience of end
users. In this paper we measure the QoS of different standard
video file formats on social clouds; they varied from each other
in resolution, audio/video bitrate, and storage size. Videos were
downloaded from YouTube and converted standard video file
formats which provided by developers and upload/download at
social clouds. During the upload of video standard file format,
original video format converted in social cloud’s default
supported file format and also compressed according to
compression technique which set by the service provider. The
Result shows that Facebook compressed HD Videos more as
compared to Google+ videos. However, Facebook gives a better
quality of compressed videos on slow networks, which were
upload in the format of MOV, FLV, WMV, AVI, WebM and
converted by Facebook into MP4 format for low resolutions and
MP4 (HEVC and AVC) for 1080P and 2160P high resolutions.
Google+ support all file formats and did not convert file format
and provide high quality video streaming for high speed
networks.