meljun cortes multimedia lecture chapter7
TRANSCRIPT
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Chapter 7 - Video
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Chapter Objectives
Explain the difference between analog and digitalvideo
List several uses of video on the Web
Describe the roles and responsibilities of video
specialists
Explain the factors that determine video quality
Identify several sources of digital video
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Chapter Objectives
Describe the pre-production, production, and post-production processes
Explain the difference between destructive and non-
destructive video processing
List and describe several key video editing programs
List and describe several of the more common video
file formats
Define compression and describe some of the mostcommonly used video codecs
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Introduction
Power to communicate with motion and soundVideo editing technology is now affordable to the
masses
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Types of Video
AnalogStill used
Wide abundance of equipment
Tape Videodiscs/Laserdiscs CAV v. CLV
Video-capture cards
Convert analog signal to digital signal Connect camcorder, VCR, TV, live feed
Different CODECs
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Analog Formats
VHSS-VHS
Hi-8Betacam SP
LiveFeed
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Digital Video
DVDigital Video
Camera
FireWire
IEEE 1394
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Digital Formats
D1, D2, D3DV
LiveFeed
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Uses of Video
Online Training and EducationAdvertising and E-commerce
Entertainment and Games
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Video Specialists
VideographerVideo Editor
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Video Standards
NTSCPAL
SECAMHDTV
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Digital Video Sources
Stock video footageClip video
Record your own
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Producing Video
Pre-productionStoryboards
Scripts
FlowchartsProduction
Capture
Post-productionEdit, Composite, Process
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Standard Timecode
SMPTEMeasures video in hours, minutes, second, frames
Used to synchronize video components
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Delivery
DownloadedStreamed
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Digital Video Software
AdobeApple
Avid
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Premiere Non-linear editing
Cross-platformOpen architecture
Supports a variety of formats
Nondestructive editing
After Effects Compositing
Unlimited layers of movingand still images
Motion packs, mattes, special
effects
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AppleQuickTime Pro
Time-based
Cross-platform
Supports variety of formats and CODECs
Variety of visual effects
iMovieTrim, synchronize, and reorder clips
Final CutEditing and compositing in one package
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Avid
XpressCross platform
Editing and compositing
Media Composer
High-end standard for Web, TV, Film
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Digital Video File Formats
AVI (Audio-Video Interleave)MPEG
MOV (QuickTime)
Real (RM)
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Compression
Video files are hugeOne second can require up to 30 MB of storage
Data transfer rate (dtr)
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CODECs
AnimationCinepak
Indeo
Sorenson
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