Digital Video Production Digital Video Production in a PC Worldin a PC World

Ways of getting it done!Ways of getting it done!

Types of MediaTypes of Media

MEDIAMEDIA VHSVHS 8 mm8 mm Hi-8Hi-8 SVHSSVHS Digital Hi 8Digital Hi 8 Mini DVMini DV Micro DVMicro DV DVDDVD

Cabling Cabling A/V RCA cables A/V RCA cables SVideo CableSVideo Cable

Stereo/Mono Audio Stereo/Mono Audio (RCA)(RCA)

Firewire CableFirewire CableDual Data lines=Fast transfer Dual Data lines=Fast transfer ratesrates

POWER

Pair 2 data flow

Pair 1 data flow

• Sony i-Link

Analog vs. DigitalAnalog vs. DigitalRead Articles:Read Articles: http://www.vbrick.com/WhitePapers/WhitePaper_AnalogVsDigitalhttp://www.vbrick.com/WhitePapers/WhitePaper_AnalogVsDigital

Video.pdfVideo.pdf

http://et.sdsu.edu/sphares/videowebpage/digitizing.htmhttp://et.sdsu.edu/sphares/videowebpage/digitizing.htm http://amo.net/NT/02-21-01ANADIG.html http://amo.net/NT/02-21-01ANADIG.html http://www.recordingconnection.com/resources-t-ad.htmlhttp://www.recordingconnection.com/resources-t-ad.html http://cameras.about.com/library/weekly/aa022501a.htmhttp://cameras.about.com/library/weekly/aa022501a.htm http://www.loronix.com/solutions/whitepapers/analogvsdigital.ashttp://www.loronix.com/solutions/whitepapers/analogvsdigital.as

pp

http://www.discovery.mala.bc.ca/web/schlombstj/Differences.hthttp://www.discovery.mala.bc.ca/web/schlombstj/Differences.htmm

http://www.fiber-optics.info/articles/analog-v-digital.htmhttp://www.fiber-optics.info/articles/analog-v-digital.htm http://www.vdoss.com/analogvsdigital.htmhttp://www.vdoss.com/analogvsdigital.htm http://www.marchnetworks.com/products/analogvsdigital.asphttp://www.marchnetworks.com/products/analogvsdigital.asp http://www.eco.utexas.edu/Homepages/Faculty/Norman/ECO361http://www.eco.utexas.edu/Homepages/Faculty/Norman/ECO361

N.Daily/Video.Editing/avd.htmN.Daily/Video.Editing/avd.htm

http://www.imakenews.com/designreview/e_article000099678.cfhttp://www.imakenews.com/designreview/e_article000099678.cfmm

http://www.vcdhelp.com/digitalvsanalog.htmhttp://www.vcdhelp.com/digitalvsanalog.htm

Capturing & Converting Analog Capturing & Converting Analog to Digitalto Digital

VHS, S-VHS, or High 8 VHS, S-VHS, or High 8 tapes = analog signaltapes = analog signal Digitize using Digitize using

software encoder & software encoder & video input devicevideo input device

Firewire 1394 CardFirewire 1394 Card

USB USB

Digital Input to ComputerDigital Input to Computer

Firewire 1394 Firewire 1394

Sony’s I-LinkSony’s I-Link

USB & converterUSB & converter

Digital AdvantageDigital Advantage

No Generational LossNo Generational LossDigital Audio (CD-quality)Digital Audio (CD-quality)No Static or “fuzziness”No Static or “fuzziness”Progressive-Scanned Image (not Progressive-Scanned Image (not

interlaced) = sharper image, no blurringinterlaced) = sharper image, no blurringCan Carry Non-video Data Layers for Can Carry Non-video Data Layers for

interactivityinteractivitySuperior Transfer of ColorsSuperior Transfer of Colors

What is Compression?What is Compression?

Video files are huge – need for Video files are huge – need for compression algorithms compression algorithms

Most Common:Most Common:MPEG-1 Small movie size, poor qualityMPEG-1 Small movie size, poor qualityMPEG-2 Decent at a reasonable file and MPEG-2 Decent at a reasonable file and

screen size – used for CD or Web-basedscreen size – used for CD or Web-basedMPEG-4 Near DVD quality with monitor-MPEG-4 Near DVD quality with monitor-

size moviessize movies

CodecsCodecs

A Codec is a coding method that A Codec is a coding method that facilitates the distribution and facilitates the distribution and smooth playback of digital movies. smooth playback of digital movies. This is apply when saving the movie This is apply when saving the movie before playback. Viewers are in before playback. Viewers are in stalled on the computer that employ stalled on the computer that employ the same codec.the same codec.

CodecCodecCodecCodec QualityQuality Typical UseTypical Use

IndeoIndeo Small enough for Small enough for Web playbackWeb playback

Quality movies that Quality movies that will be played back will be played back from the hard drivefrom the hard drive

CinePakCinePak Decent movie Decent movie quality at CD data quality at CD data ratesrates

Playback from CDs Playback from CDs on PCs and MACson PCs and MACs

SorensoSorensonn

Good quality Good quality moviemovie

Used with QT for Used with QT for both PC & MACsboth PC & MACs

DV-DV-NTCSNTCS

Very High QualityVery High Quality Used for transferring Used for transferring video clips from video clips from camcordercamcorder

H.261H.261 Decent over Decent over phone lines & phone lines & ISDNISDN

Used for tele conf.Used for tele conf.

File FormatsFile Formats

.AVI (Audio Video Interleave)-- Open .AVI (Audio Video Interleave)-- Open architecture so designers can include architecture so designers can include many types of compression and many types of compression and playback options to suit their playback options to suit their projects.projects.

.MOV --Quicktime is cross-platform .MOV --Quicktime is cross-platform compression that retains high compression that retains high quality.quality.

Streaming VideoStreaming Video

Server-based streaming video begins Server-based streaming video begins playback as soon as viewer opens playback as soon as viewer opens Web page. Each type of streaming Web page. Each type of streaming video format requires a special video format requires a special server-based deployment, server-based deployment, equipment, or development package.equipment, or development package.

Video StreamingVideo StreamingStreaming Streaming TypeType

BackgroundBackground Typical UseTypical Use

RealMediaRealMedia

RMRMRealNetworks RealNetworks proprietary -- proprietary -- viewer & viewer & developerdeveloper

Creates Web-based Creates Web-based or server-based or server-based streaming moviestreaming movie

Windows Windows Media Media Format Format (WMV)(WMV)

Free player, Free player, encoder, & encoder, & production production softwaresoftware

Creates Web-based Creates Web-based or server-based or server-based streaming movie.streaming movie.

QuickTime QuickTime (MOV)(MOV)

Free playerFree player Best quality Best quality generally speaking generally speaking than other two types.than other two types.

Cables, Cameras, Software, Cables, Cameras, Software, MoreMore

http://www.arp.sprnet.org/curric/http://www.arp.sprnet.org/curric/video/equipment_index.htm video/equipment_index.htm

Common Video Capture Common Video Capture Software FeaturesSoftware Features

Pre-record playback to screenPre-record playback to screen Digital Video Device Options (MS 1394, USB)Digital Video Device Options (MS 1394, USB) Compression Options (MPEG-4, MPEG-2)Compression Options (MPEG-4, MPEG-2) Renaming & Save File Location OptionsRenaming & Save File Location Options Direct Monitoring of the Recording ProcessDirect Monitoring of the Recording Process Playback of Recorded MoviePlayback of Recorded Movie Variations on the Video Capture ThemeVariations on the Video Capture Theme Special Effects (A/B roll, Titling, Digital Special Effects (A/B roll, Titling, Digital

Effects)Effects)

MS Producer FeaturesMS Producer Features

http://www.arp.sprnet.org/curric/video/http://www.arp.sprnet.org/curric/video/PowerPoint/MS_PRODUCER.pptPowerPoint/MS_PRODUCER.ppt

INSTALL: INSTALL: http://www.arp.sprnet.org/curric/video/insthttp://www.arp.sprnet.org/curric/video/installs/producer.exe alls/producer.exe

http://www.arp.sprnet.org/curric/video/http://www.arp.sprnet.org/curric/video/PowerPoint/Windows%20MediaPowerPoint/Windows%20Media%20Encoder%207.ppt %20Encoder%207.ppt

INSTALL: INSTALL: http://www.arp.sprnet.org/curric/video/insthttp://www.arp.sprnet.org/curric/video/installs/wmencoder71.exe alls/wmencoder71.exe

Windows Media Encoder Windows Media Encoder FeaturesFeatures