martes, 22 de marzo de 2011

Video Formats-FAST FACTS


---DVD---
  1. DVD discs offer higher storage capacity than compact dics while having the same dimensions.
  2. DVD-ROM because data can only be read and not written nor erased.
  3. he DVD is made of a spiral groove read or written starting at the center. The form of the groove encodes unalterable identification data known as Media Identification Code
---Mini DV---
  1. is a DVd disc having 8 cm in diameter.
  2. A MiniDV can be played back in most DVD players that are tray loaded.
Physical sizeSingle layer capacityDual/Double layer capacity
12 cm, single sided4.7 GB8.5 GB
12 cm, double sided9.4 GB17 GB
8 cm, single sided1.4 GB2.66 GB
8 cm, double sided2.8 GB5.2 GB

---.AVI---

  1. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback
  2. AVI divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag.
  3. AVI is not intended to contain variable frame rate material.
---.MPEG---
  1. The MPEG compression methodology is considered asymmetric as the encoder is more complex than the decoder
  2. MPEG is a working group of experts that was formed to set standards for audio and video compression and transmission.
MPEG groups of standards[25][26][27][46][47]
Acronym for a group of standards↓Title↓ISO/IEC standards↓First public release date (First edition)↓Description↓
MPEG-1Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/sISO/IEC 111721993
MPEG-2Generic coding of moving pictures and associated audio informationISO/IEC 138181995
MPEG-3abandoned, incorporated into MPEG-2
MPEG-4Coding of audio-visual objectsISO/IEC 144961999
MPEG-7Multimedia content description interfaceISO/IEC 159382002
MPEG-21Multimedia framework (MPEG-21)ISO/IEC 210002001
MPEG-AMultimedia application format (MPEG-A)ISO/IEC 230002007
MPEG-BMPEG systems technologiesISO/IEC 230012006
MPEG-CMPEG video technologiesISO/IEC 230022006
MPEG-DMPEG audio technologiesISO/IEC 230032007
MPEG-EMultimedia MiddlewareISO/IEC 230042007
(none)Supplemental media technologiesISO/IEC 291162008will be revised in MPEG-M Part 4 - MPEG extensible middleware (MXM) protocols
MPEG-VMedia context and controlISO/IEC FDIS 23005[37]under development
MPEG-MMPEG extensible middleware (MXM)ISO/IEC 23006[42]2010
MPEG-URich media user interfacesISO/IEC 23007[44]2010
---.DIVX---
  1. DivX 6 expanded the scope of DivX from including just a codec and a player
  2. It is one of several codecs commonly associated with "ripping", whereby audio and video multimedia are transferred to a hard disc and transcoded
  3. This new "DivX Media Format" also came with a "DivX Ultra Certified" profile, and all "Ultra" certified players must support all "DivX Media Format" features.
--MP4--
it is fully compatible and still is in development. It is able to mix different types of data like video, audio and speech.



FOR FURTHER INFOMATION CHEK OUT THIS LINK
http://www.asharer.com/wp-content/uploads/2010/11/flash-swf-video-format.jpg

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