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Basics of Digital Video | Mateo Q. 2/5/22 - Coggle Diagram
Basics of Digital Video | Mateo Q. 2/5/22
Video
Is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.
Video standards and formats are still being refined as transport, storage, compression, and display technologies take shape in laboratories and in the marketplace
Analog video
In an analog system, the output is processed by the camera into three channels of color information and synchronization pulses and the signals are recorded onto magnetic tape.
The analog video and audio signals are written to tape by a spinning recording head that changes the local magnetic properties of the tape’s surface in a series of long diagonal stripe.
Digital Video
In digital systems, the output is digitized by the camera into a sequence of single frames, and the video and audio data are compressed before being written to a tape or digitally stored to disc or flash memory in one of several proprietary and competing formats.
Formats
MP4
(MPEG-4) This is a format for
working with video files and was first introduced in 1998.
MOV
Besides of being a video container is a common multimedia format using a proprietary compression algorithm developed by Apple Computer.
AVI
Audio Video Interleave. Is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows technology. It can contain both audio and video data in a file container-
MPEG
Moving Picture Experts Group. Is a working group of experts that was formed by ISO and IEC to set standards for audio and video compression and transmission.
FLV/F4V
Flash Video. is a container file format used to deliver video over the Internet using Adobe Flash Player versions 6-11. There are two different video file formats known as Flash Video: FLV and F4V.
WMV
Windows Media Video. is a compressed video compression format for several proprietary codecs developed by Microsoft.
