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VIDEO

RONNEL MERCADO

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WHAT IS VIDEO?

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VIDEO

Video is an electronic

medium forthe recording, copying andbroadcasting of

moving visual images

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HISTORY

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HISTORY

Video technology was first

developed for CRT televisionsystems

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HISTORY

Charles Ginsburg led

an Ampex research teamdeveloping the firstpractical video tape

recorder (VTR)

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HISTORY

Video recorders were sold

for $50,000 in 1956,and

videotapes cost $300 perone-hour reel

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HISTORY

In 1971, Sony began

selling videocassetterecorder (VCR) tapes tothe public

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HISTORY

1997 - DVD was invented

2006 Blue-ray Disc was

invented

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INTERL CED VIDEO

Interlaced formats:

1.NTSC2.PAL

3.SECAM

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NTSC

NTSC - National Television SystemCommittee

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PAL

PAL - Phase Alternating Line

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SECAM

SECAM - Squentiel couleur mmoire

Sequential Color with Memory

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ASPECT RATIO

Aspect ratio describes thedimensions of video screens and

video picture elements.

All popular video formats can bedescribed by a ratio between widthand height.

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ASPECT RATIO

The screen aspect ratio of atraditional television screen is4:3

High definition televisions use anaspect ratio of 16:9

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COMMONLY USED VIDEO FILEFORMAT

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.FLV

1. Flash Video (.flv)

Flash video is playable within Flashmovies files, which are supported by

practically every browser on everyplatform

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.AVI2. Audio Video Interleave (.avi)

Video Format developed by MicrosoftIt stores data that can be encoded in a numberof different codecs and can contain both audio

and video data.

The AVI format usually uses less compressionthan some similar formats and is a verypopular format amongst internet users.

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.MOV3. Quicktime Format (.mov)

The QuickTime format was developed by Apple.

The format contains one or more tracks storingvideo, audio, text or effects. . It is compatiblewith both Mac and Windows platforms, andcan be played on an Apple Quicktime player.

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.MP44. MP4 Format (.mp4)

This format is mostly used to store audioand visual streams online, mostcommonly those defined by MPEG

The mp4 can most commonly be playedon the Apple QuickTime Player or othermovie players

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.MPG5. Mpeg Format (.mpg)

Common video format standardized by MPEGMoving Pictures Experts Group.

It can be played using Apple QuickTime Playeror Microsoft Windows Media Player.

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.3GP7. 3GP File Extension (.3gp)

The 3gp format is both an audio and videoformat that was designed as a multimediaformat for transmitting audio and video filesbetween 3G cell phones and the internet

It is most commonly used to capture videofrom your cell phone and place it online.

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.RM9. Real Media Format (.rm)

RealMedia is a format which was created myRealNetworks. It contains both audio andvideo data and typically used for streamingmedia files over the internet.

The realplayer is the most compatible videoplayer

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.SWF10. Flash Movie Format (.swf )

Small Web FileThe Flash movie format was developed myMacromedia.

This format can include text, graphics andanimation. In order to play in Web Browsers,they must have the Flash Plug-In Installed

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VIDEO EDITING

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VIDEO EDITING

Video editing is the process ofmanipulating and rearranging videoshots to create a new work

Editing is usually considered to be one

part of the post production process other post-production tasks includetitling, colour correction, sound mixing

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GOALS OF EDITING

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GOALS OF EDITING

Remove unwanted footage Choose the best footage Create a flow Add effects, graphics, music etc. Add style and mood of the video

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1. REMOVE UNWANTEDFOOTAGE

This is the simplest and most common task inediting.

Many videos can be dramatically improved bysimply getting rid of the flawed or unwantedbits.

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2. CHOOSE THE BESTFOOTAGE

It is common to shoot far more footage

than you actually need and choose onlythe best material for the final edit.

Often you will shoot several versions(takes) of a shot and choose the bestone when editing.

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3. CREATE A FLOW

Most videos serve a purpose such as

telling a story or providing information.

Editing is a crucial step in making surethe video flows in a way which achievesthis goal

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4. ADD EFFECTS, GRAPHICS,MUSIC ETC.

You can improve most videos by adding extraelements.

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5. ADD STYLE AND MOOD OFTHE VIDEO

A good editor will be able to create subtlemood prompts in a video.

Techniques such as mood, music and visualeffects can influence how the audience willreact

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VIDEO EDITING TEMINOLOGY

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VIDEO EDITING TERMINOLOGY

1. Capture Device

A hardware or firmware deviceused to convert analogue videointo digital video.

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3. Editing

The process of rearranging, addingand/or removing sections of video clips.

Also, creating transitions between clips.

Editing is part of post-production

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4. Encoding

The process of converting digitalvideo into a particular format, for

example, saving a video project inMGEG-2 format for DVDdistribution.

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5. Linear Editing

Also known as tape to tape editing.

A method of editing in which footage iscopied from one tape to another in therequired order

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6. Non Linear Editing

An editing method which uses computersoftware to edit the footage

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7. Transition

The way one shot changes to the next

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QUESTIONS?

LEC 1 VIDEO

Documents

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