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.tbaiana.com) willcheck if DirectShow is installed (see its isDirectShowInstalled() function).QT2 or QT3 can be played in a browser without Shockwave if the user has theNetscape-compatible QT2 or QT3 plug-in installed (and the appropriate version ofQT installed).Shockwave 6, like D6 Projectors, can play QT2 content without anXtra, but QT3-specific content requires the QT3 Xtra (see Tables 16-1, 16-2, and16-3).LicensingApple licenses the basic QT installer for Macintosh and Windows for free,assuming the installer displays their Get QuickTime Pro advertisement, but youmust fill out a licensing agreement.For an additional fee, you can distribute QT3without the advertisement or even QT3 Pro, but there is rarely a need for this inDirector.The current QuickTime Licensing terms are available at:http://gemma.apple.com/mkt/registering/swl/agreements.htmlhttp://developer.apple.com/mkt/registering/swl/qtannouncement.htmlTo license the QT installer(s), download the PDF file:http://developer.apple.com/mkt/registering/swl/agreements.html#QuickTimePrint out the PDF file using Acrobat Reader, fill it out, and mail signed copies to:Apple Computer, Inc.Software Licensing M/S 198-SWL2420 Ridgepoint Drive, Austin, TX 78754Follow up an email to sw.license@apple.com or with a phone call to 800-793-9378or 512-919-2645 and ask for an FTP address from which to download the file oncethey have received your contract.The licensed installer includes a QTSETUP.INIfile that can customize the installation prompts somewhat.550 Chapter 16  Digital VideoDigital Video Tools and OptionsUser Interface IssuesDV sprites may affect your product design.Bear in mind the following:" DV sprites are ordinarily played direct-to-Stage, which ignores any ink effects(Copy ink is used) and displays the DV sprite in front of all other spritesregardless of their sprite channel numbers." The cursor will flicker when it passes over a DV sprite.Either hide the cursoror tolerate the flicker." Transitions are very slow under Windows when a DV sprite is playing.Stopthe DV sprite before performing a transition.Do not attempt to use transitionswith other sprites while a DV sprite is playing; any transition will include theDV sprite s bounding rectangle, because a DV sprite is always changing.Eitherbring the other sprites in from off-Stage or imitate a transition with a series ofcast members or by using a blend ink (see Example 13-5)." DV sprites will play back using the custom palette in effect, but certain cave-ats apply.Refer to Chapter 13, Graphics, Color, and Palettes, for details onpalette management.Sound IssuesThe Macintosh has multiple sound channels, so you can play audio tracks withinQT files simultaneously with Director-based sounds (AIFF, WAVE, SWA, andinternal sounds).Windows has only one true sound channel, and QuickTime for Windows andVideo for Windows seize it when playing audio tracks within DV files.This mayprevent Director from playing Director-based sounds while a DV file with an audiotrack is playing.Director s MacroMix technology mixes Director-based soundstogether to simulate multichannel audio, and it too seizes the sole Windows soundchannel when it plays a sound.Whichever component takes control of the sound channel first may lock out theother from playing sounds.D6.5 or D7 in conjunction with QT3 can sometimesmix QT-based and Director-based sounds simultaneously.See  Sound Mixingunder Windows in Chapter 15 for details on avoiding sound conflicts.Digital Video Tools and OptionsThis section describes the digital video cast member properties and user interfaceoptions.Video Playback and Editing WindowUse Director s Digital Video window, shown in Figure 16-1, to preview or performsimple edits on DV cast members.Don t confuse the Digital Video window with aDV sprite placed on the Stage, which does not have its own window, or withmovies-in-a-window (MIAWs) which are Director files, not digital videos [ Pobierz całość w formacie PDF ]