50163036 Aimée Lister Level 3 TV and Film: Format Definitions and Case Study

Compression - reduction of data size to save space or transmission time

Lossy - image file types are designed to show the image using an optimum amount of data.

Lossless - format is a form of compression for data files that ensure the original data is available on decompression but still reduces its size for storage.

Video files - the format of which files are compressed in.

MPG - "Moving Picture Experts Group" or "Audio/visual file format"

MP4 - a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images.

MOV - a movie file format sometimes referred to as the Apple QuickTime Movie Format.

AVI - a sound and motion picture file that conforms to the Microsoft Windows Resource Interchange File Format (RIFF) specification.

WMV - Windows Media Video is a video compression format for several proprietary codecs developed by Microsoft.

FLV - Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player versions 6–11.

SWF - an Adobe Flash file format used for multimedia, vector graphics and ActionScript. Originating with FutureWave Software, then transferred to Macromedia, and then coming under the control of Adobe, SWF files can contain animations or applets of varying degrees of interactivity and function.

3GP - a format that is compatible in mobile phones and multimedia

ASF - Advanced Systems Format is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media.

Resolution - the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail.

Data rate - the rate at which circuits or other devices operate when handling digital information

Frame rate - also known as Frames per Second (FPS) is the frequency at which an imaging device produces unique consecutive images called frames.

keyframe rate - in animation and filmmaking is a drawing that defines the starting and ending points of any smooth transition.

Aspect Ratio - the ratio of the width to the height of the image on a television screen.

Flash Player - The Adobe Flash Player is freeware software for viewing multimedia, executing rich Internet applications, and streaming video and audio, content created on the Adobe Flash platform.

QuickTime - Quicktime is a multimedia development, storage, and playback technology from Apple. Quicktime files combine sound, text, animation, and video in a single file.

Windows Media Player - Windows Media Player is a media player and media library application developed by Microsoft that is used for playing audio, video and viewing images on personal computers

RealMedia - RealMedia is a proprietary multimedia container format created by RealNetworks. Its extension is ".rm".F

Case Studies.

Netflix is an online video subscription website where you can stream films and tv series etc. It is available on PC and mobile devises.

Netflix streaming movies were originally encoded using WMV3 and WMA formats, but they now utilise Microsoft Silverlight technology and use VC-1 Advanced Profile encoding with PlayReady DRM (Digital Rights Management).

https://www.youtube.com/watch?v=W3mIZMwnX6k