Streaming Video Techniques

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Information about Streaming Video Techniques

Published on February 5, 2014

Author: pslamont

Source: slideshare.net

STREAMING VIDEO TECHNIQUES Problem: In the field of streaming video, the primary design challenge was that the viewer desires perfect video quality over a limited bandwidth network. Perfect video quality requires an enormous amount of digital data. It was known to capture video using a capture device, compress the resulting captured video, store the compressed video, and send the compressed video across the TCP/IP protocol. However, prior attempts had failed to produce high quality streaming video, and failed to produce full screen, full frame rate video at any acceptable quality. Solution: In answer to this problem, Iviewit developed techniques that can be generally described as a method of playing a digital video file over a network includes providing a digital video file from a first storage device; downloading a first portion of the digital video file from the first storage device over a network to a computer having a second storage device and a display screen; expanding the viewing frame size of the computer display screen to at least 640 x 480 pixels; and playing the first downloaded portion on the expanded display screen from the second storage device while substantially simultaneously downloading a second portion of the digital video file to the second storage device.

STREAMING –cont’d The capability in doing such requires: (i) Receiving a digital video file; (ii) Encoding the received digital video file using a video encoder; (iii) Associating a viewing frame size of at least 320 x 240 pixels with the encoded digital video file; (iv) Uploading the digital video file to a network server; and In response to a user request, streaming the digital video file across the TCP/IP protocol.

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