video file formats Flashcards
.avi and 5 point description
a. developed by microsoft
b. contains audio;video data in a file that allows synchronised playback of audio&;vid.
c. multiple streaming-seldom used
d. stores high quality aud&vid
e. less compression than MPEG&MOV… large space req
.wmv
dev by microsoft& file based on ASF container format , compressed w WM compression
mpg&mpeg
moving pictures expert group
£most popular format on internet
£ to create mov to b distrubuted on internet
£ stores audio,video, metadata interleaved together
£cross-platform-supported by all browsers
£typically incorporate MPEG-1/MPEG-2 aud&vid compression
vid files devlpd by apple
.MOV&.QT to use w its Quicktime player
MOV is common multimedia container format
supported on windows and mackintosh platforms
uses MPEG-4 CODEC
may contain multiple tracks that store different types of media data and is often used for saving movies and other video files
devlpd by macromedia
.swv &.flv- falsh(shockwave) format-
req. extra component to play
comes preinstalled w browser like firefox/ ie
.mp4
- uses MPEG-4 , to share files over the internet
- MPEG-4 file format uses separate compression for audio &vid
- youtube takes all file formats nd converts to .flv/.mp4 for distrubution
- internet publishers moving to .mp4 as it is -internet sharing format for both Flash players and HTML5
MIDI
- file format for electronic music devices like synthesizers and PC sound cards.
- dont contain sound , but digital musical instructions(notes) that can be played on electronics(ur PC’s sound card)
.ASF
- An ASF file is a media file stored in the Advanced Systems Format (ASF), a proprietary video and audio container format.
- It contains audio and video data and optional metadata, such as title, author, and copyright bibliographic data.
- ASF files are developed by Microsoft primarily for streaming media.
.mkv
- mkv file formta incorporates aud, vid and subtitles in a single file
- future proof- always updated
- supports any audio, video format- highly adapyive nd easy to use
.WebM(devlpd by google in 2010), mention 4 advantages
- open-souce video format that was developed with the current and future state of the Internet in mind
- to use w HTML-5
- uses less computer power to unzip & compress- so that vid streaming can be done on any device
which vid file format is an open-source alternative for .MPG
.OGG - 3 adv.
- high-quality videos to be streamed via the internet
- higher qual than Web-M- longer time to load
- can b used on variety of applications- including GPS receivers and media players (both desktop and portable).
Most popular vid file formats
avi, flv, wmv, MOV, MP4, MPEG
best for online vid platforms
mp4, flv, wmv – relatively small file sizes, high quality- for streaming
HD format for tv/comp
mov, avi, nkv – much larger file sizes
wider browser support(small file size and high qual) for embedding to websites
Web-M
