8/7/2019 Video Formats Xxxxx

http://slidepdf.com/reader/full/video-formats-xxxxx 1/3

Video formats

There are different layers of video transmission and storage, each with its own set of formats to choose

from.

For transmission, there is a physical connector and signal protocol ("video connection standard" below).

A given physical link can carry certain "display standards" which specify a particular refresh rate, display

resolution, and color space. There are a number of analog and digital tape formats, though digital video

files can also be stored on a computer file system which have their own formats. In addition to the

physical format used by the storage or transmission medium, the stream of ones and zeros that is sent

must be in a particular digital video "encoding", of which a number are available

Video connectors, cables, and signal standards 

y  See List of video connectors for information about physical connectors and related signal

standards.

Video display standards

Digital television

New formats for digital television broadcasts use the MPEG-2 video codec and include:

y  ATSC - USA, Canada, Korea

y  DVB - Europe

y  ISDB - Japan

o  ISDB-Tb - Uses the MPEG-4 video codec. Brazil, Peru

y  DMB - Korea

Analog television

Analog television broadcast standards include: 

y  FCS - USA, Russia; obsolete

y  MAC - Europe; obsolete

y  MUSE - Japan

y  NTSC - USA, Canada, Japan

y  PAL - Europe, Asia, Oceania

o  PAL-M - PAL variation. Brazil

o  PALplus - PAL extension, Europey  RS-343 (military)

y  SECAM - France, Former Soviet Union, Central Africa

An analog video format consists of more information than the visible content of the frame. Preceding

and following the image are lines and pixels containing synchronization information or a time delay. This

surrounding margin is known as a blanking interval or blanking region; the horizontal and vertical front

porch and back porch are the building blocks of the blanking interval.

8/7/2019 Video Formats Xxxxx

http://slidepdf.com/reader/full/video-formats-xxxxx 2/3

Many countries are planning a digital switchover soon.

Video Cables - HDMI Cable, DVI Video Cable, Component Video Cable, S-Video Cable, Composite Video Cable,

RGBHV, VGA to RGB Video Cable

 

Video Cables - Connect your Home Theater Display (Plasma, RPTV, LCD, Projector) and Source Devices (DVD, Cable,

Satellite, Blu Ray, HD-DVD, or VCR) with no loss of quality with our selection of cables. From our Award winning

DVI and new Rev2 HDMI Cables,to our Custom Series of Broadcast Quality cables we guarantee the Highest Quality

Video Signal.

Need Something Strange? BNC Connectors? RGB or VGA Connections? Check the HDTV/Projector Cables Category

for all kinds of converter/adapter cables. Check out our huge selection of Audio Cables as well.

 

Still not sure what you need? See our Home Theater Connection Guide or just look below in our "Let us help you

Choose" section for the most relevant Video Connection Information.

HDMI:

We have a choice of inexpensive and somewhat more expensive choices available depending on if you need a

short cable for HD audio and video over HDMI or if you need the best possible cable designed to accommodate the

latest and future cable requirements.

 

Component Video (Y-Pr-Pb):

We have only real, high quality cables available, but some have low prices! From our Custom broadcast quality

cables to our Elite series locking Gold plated high bandwidth cables, we carry only cables that are made to last a

lifetime. Other cables may perform well for a few months, but poor RCA connector designs or soldering will often

cause failure or intermittent operation eventually.

 

S-Video:

We have no reason to think that anyone has S-Video cables at the price/performance levels that we do. Let alone

the variety. S-Video is one exceptional example of cables where wide varieties of performance can be seen in the

marketplace. Typically they are garbage, with few choices that are better than just using Composite video.

 

Composite video: 

 We pretty much just bother with Pro grade cables. Use an "AV cable" or generic 75 ohm coax cable if you need to

be cheap. They should work. Our Composite cables are made to last forever, can be used for Coax digital audio, or

as a single (mono) analog audio cable. This cable will always be good for something!

8/7/2019 Video Formats Xxxxx

http://slidepdf.com/reader/full/video-formats-xxxxx 3/3

 

VGA/RGB/RGB-HV Component Video Cables:

 This is a tricky one. RGB is very different from ComponentVideo (Y-Pr-Pb). It is a different Video format. You may

need a Video Converter to properly convert the signal. Projectors and some HDTV's will accept Component Video

through a "VGA" input, but you should check your manual!

 

Analog video is a video signal transferred by analog signal. It contains the luminance (brightness) and chrominance 

(color) of the image, which may be carried in separate channels, as in component video (YPbPr) and S-Video, or

combined in one channel, as in composite video and RF connector.

Analog video is used in both consumer and professional applications. However, digital signal formats with higher

quality have been adopted, including serial digital interface (SDI), Firewire (IEEE1394), DVI and HDMI.

Digital video is a type of video recording system that works by using a digital rather than an analog video signal.

The tcamera, video camera, and camcorder are used interchangeably in this article.

 Apa itu Analog dan digital

Sebagai contoh, sebuah meja putar (atau pemain piring hitam) adalah peranti analog, sedangkan CD player adalah

digital. Hal ini kerana sebuah meja putar membaca gundukan dan lekukan dari rekod sebagai isyarat

berterusannya, sementara CD player hanya membaca siri satu dan sifar. Demikian juga, VCR adalah peranti analog,

sementara player DVD digital. Sebuah VCR membaca audio dan video dari tape sebagai aliran kontinu maklumat,

sedangkan DVD player hanya membaca satu dan sifar daripada cakera.

Kerana peranti digital hanya membaca satu dan sifar, mereka hanya boleh anggaran isyarat audio atau video. Ini

bermakna data analog sebenarnya lebih tepat daripada data digital. Namun, data digital dapat lebih mudah dapat

dimanipulasi dan diawetkan lebih baik dari data analog. Lebih penting lagi, komputer hanya boleh mengendalikan

data digital, yang paling hari ini mengapa maklumat disimpan secara digital. Tapi jika anda ingin memindahkanvideo dari tua kaset video analog ke komputer anda supaya anda boleh mengeditnya, anda tidak akan berjaya.

Anda boleh menggunakan konverter digital ke analog (DAC) untuk menukar maklumat analog menjadi isyarat

digital yang boleh dikenali oleh komputer anda.