# QuickTime Movies

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## QuickTime Movies

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15.3. QuickTime Movies A QuickTime movie is a video file you can play from your hard drive, a CD or DVD, or the Internet.

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## Nội dung Text: QuickTime Movies

1. 15.3. QuickTime Movies A QuickTime movie is a video file you can play from your hard drive, a CD or DVD, or the Internet. Like any movie, it creates the illusion of motion by flashing many individual frames (photos) per second before your eyes, while also playing a synchronized soundtrack. 15.3.1. QuickTime Player Thousands of Mac OS X programs can open QuickTime movies, play them back, and sometimes even incorporate them into documents: Word, FileMaker, Keynote, PowerPoint, Safari, America Online, and even the Finder (Figure 15-4). Figure 15-4. You can play QuickTime movies right in the Finder. In Cover Flow view or column view, click the button, as shown here. The two buttons on the right end are frame-advance buttons. Or just highlight a movie item and press the Space bar to give it a Quick Look look. But the cornerstone of Mac OS X's movie-playback software is QuickTime Player, which sits in your Applications folder (and even comes factory-installed in the Dock). It's designed not only to play movies, but also to show pictures, and to play sounds, in all kinds of formats. 15.3.1.1. Playing movies with QuickTime Player You can open a movie file by double-clicking it. As shown in Figure 15-5, a number of controls help you govern the movie's playback: • Scroll bar. Drag the triangle to jump to a different spot in the movie. Tip: You can also press the right and left arrow keys to step through the movie one frame at a time. If you press Option-right or -left arrow key, you jump to the beginning or end of the movie. In the Pro version, Option-arrow key also jumps to the beginning or ending of a selected stretch of the movie.
2. • Resize handle. Drag diagonally to make the window bigger or smaller. Tip: When you drag the resize handle, QuickTime Player strives to maintain the same aspect ratio (relative dimensions) of the original movie, so that you don't accidentally squish it. If you want to squish it, however— perhaps for the special effect of seeing your loved ones as they would look with different sets of horizontal and vertical genes—press Shift as you drag.If you press Option while dragging, meanwhile, you'll discover that the movie frame grows or shrinks in sudden jumping factors of two—twice as big, four times as big, and so on. On slower Macs, keeping a movie at an even multiple of its original size in this way ensures smoother playback. • Selection handles. These tiny handles appear only in the Pro version. You use them to select, or highlight, stretches of footage. Figure 15-5. Some of the controls shown here are available only in the Pro version of QuickTime Player. They appear as soon as you type in your registration code (which you get when you pay $30). • Volume.If you like, you can make the soundtrack louder or softer by dragging this slider with your mouse or clicking in its "track." You may find it easier, however, to press the up or down arrow keys. Tip: To mute the sound, click the little speaker icon, or press Option-down arrow. Press Option-up arrow to make the volume slider jump to full-blast position. • Audio level meters. This tiny graph dances to indicate the relative strength of various frequencies in the soundtrack, like the VU meters on a stereo. If you don't see any dancing going on while the movie plays, then you've opened a movie that doesn't have a soundtrack. 3. • Counter. In "hours:minutes:seconds" format, this display shows how far your Playhead cursor has moved into the movie. (Click this readout for an option to change the display to frames.) If you have QuickTime Pro, the counter reveals the position of the selection handle you've most recently clicked (if any). • Rewind, Fast-forward. By clicking one of these buttons and keeping the mouse button pressed, you get to speed through your movie, backward and forward, respectively, complete with sound. • Rewind to Start, Jump to End. These buttons do exactly what they say: scroll to the beginning or end of your movie. In the Pro version, they can also jump to the beginning and ending of the selected portion of the movie (if any). All of this, in other words, is exactly the same as pressing the Option-left arrow or -right arrow keys. Tip: Try minimizing a QuickTime Player window while a movie is playing. It shrinks to the Dock—and keeps on playing. Do this enough times, and you'll know what it's like to be Steve Jobs on stage. 15.3.1.2. Hidden controls Don't miss the Window Show A/V Controls commands. As shown in Figure 15-6, they let you fine-tune the video and audio (mostly the audio) you're experiencing. Figure 15-6. The new A/V Controls should really be called A controls, because they govern only the audio; they don't affect the V (video picture) at all, unless you count the playback-speed controls on the right side. 15.3.1.3. Fancy playback tricks Nobody knows for sure what Apple was thinking when it created some of these additional features—exactly how often do you want your movie to play backward?—but 4. here they are. Some of these features are available only in the unlocked Pro version of QuickTime Player, as indicated below. • Change the screen size. Using the View menu commands, such as Double Size and Fit to Screen, you can enlarge or reduce the actual "movie screen" window. Making the window larger may also make the movie coarser, because QuickTime Player simply enlarges every dot that was present in the original. Still, when you want to show a movie to a group of people more than a few feet back from the screen, these larger sizes are perfectly effective. • Play more than one movie. You can open several movies at once and then run them simultaneously. (Of course, the more movies you try to play at once, the jerkier the playback gets.) Tip: If you have Player Pro, you can use the View Play All Movies command to begin playback of all open movies at the same instant. • Play the movie backward. You can play the movie backward—but not always smoothly—by pressing -left arrow, or by Shift-double-clicking the movie itself. UP TO SPEED QuickTime Player vs. QuickTime Player Pro Mac OS X comes with the all-around audio, video, and picture player known as QuickTime Player. If you peruse its menus, however, you'll discover that over half the commands are dimmed, unavailable, and marked by a little logo that says "PRO." Actually, what it really says is, "Pay us$30! C'mon, pal!" If you choose one of these dimmed commands, you get a dialog box that describes the feature you would have available if you upgraded to QuickTime Pro for $30 by clicking the Buy Now button. Once you've turned QuickTime Player into Player Pro, all of those dimmed features spring to life, and the PRO logos disappear. (Even if you paid for the Pro version of QuickTime 6, you have to pay again for 5. the Leopard version, QuickTime 7—a distinct sore point for a lot of Mac fans.) To execute this transaction, open the QuickTime pane of System Preferences. (If you're already in QuickTime Player, choose QuickTime Player Registration.) Click Buy QuickTime Pro. You wind up on the Apple Store Web site, which stands ready to accept your order. Apple then gives you a serial number, which you should type into the QuickTime System Preferences pane. Once you've upgraded, you gain several immediate benefits—not the least of which is the permanent disappearance of the "PRO" logos in all of the QuickTime Player menus. Now QuickTime Player can edit your movies, as described later in this chapter. It can also import many more sound and graphics formats, record audio and video, and—via the File Export command— convert sounds, movies, and graphics into other formats. Nor is QuickTime Pro the only upgrade you can buy. For another$20, you can add the MPEG-2 Playback Component, which gives QuickTime Player the ability to open and play MPEG-2 files (like the high-quality files found on a DVD). (QuickTime isn't so great at converting these files, though; in the translation to many formats, including DV and H.264, it loses the audio track. If your intention is to convert an MPEG-2 file to, say, DV format for editing in iMovie, you need a free program like MPEG StreamClip to assist with the conversion. You'll find it with a quick Google search.) • • (You must keep the Shift button pressed to make the backward play back continue.) There's no better way to listen for secret subliminal messages. • Loop the movie. When you choose View Loop and then click Play, the movie repeats endlessly until you make it stop. • Play a selection (Pro only). When you choose View Loop Back and Forth and then click Play, the movie plays to the end—and then plays backward, from end to beginning. It also repeats this cycle until you make it stop.
8. Tip: You can gain more precise control over the selection procedure by clicking one of the handles and then pressing the right or left arrow key. Doing so expands or contracts the selected chunk of footage by one frame at a time.You may also prefer to select a piece of footage by Shift-clicking the Play button. As long as you hold down the Shift key, you continue to select footage. When you release the Shift key, you stop the playback, and the selected passage appears in gray on the scroll bar. Figure 15-8. When you jiggle your mouse in Full Screen mode, you get this control panel for pausing, stopping, rewinding, and so on. Just remember that although Full Screen is terrific when you want to play a movie for a large group of people, an enlarged QuickTime movie is also a jerkier and grainier one. Once you've highlighted a passage of footage, you can proceed as follows: • Jump to the beginning or end of the selected footage by pressing Option- or Option- . • Deselect the footage by dragging the two handles together again. • Play only the selected passage by choosing View Play Selection Only ( - T).(The other Movie menu commands, including Loop, apply only to the selection at this point.) • Drag the movie picture out of the Player window and onto the desktop, where the selected portion becomes a movie clipping that you can double-click to view. • Cut, copy, or clear the highlighted material using the commands in the Edit menu. Tip: If you paste some text directly into QuickTime Player Pro, you get a two-frame title—like an opening credit—at the location of the scroll bar playhead. (If you need it to be longer, paste it repeatedly.) QuickTime Player automatically uses the font, size, and style of the text that was in the text clipping. You can paste a graphic image, too, which gets you a two-frame "slide" of that still image.If you find it easier, you can also drag a text or picture clipping file directly from the desktop into the QuickTime Player window; once again, you get a two-frame insert.
9. 15.3.3.2. Pasting footage After cutting or copying footage, you can move it elsewhere in the movie.Specify where you want the pasted material to go by clicking or dragging in the horizontal scroll bar so that the playhead marks the spot; then choose Edit Paste. The selection handles (and their accompanying gray scroll bar section) appear to show you where the new footage has appeared. (That makes it easy for you to promptly choose Edit Cut, for example, if you change your mind.) But in QuickTime Player Pro, Cut and Paste are just the beginning of your options. For example: • Edit Trim to Selection eliminates the outer parts of the movie—the pieces that aren't selected. All that remains is the part you first highlighted. • Edit Add to Movie adds whatever's on the Clipboard so that it plays simultaneously with the selected footage—a feature that's especially useful when you're adding a different kind of material to the movie (see Figure 15-9). For example, if you paste one clip into another, you get a picture-in-picture effect. • If you choose Edit Add to Selection & Scale, what ever you're pasting gets stretched or compressed in time so that it fits the highlighted region, speeding up or slowing down both the audio and video. The effect can be powerful, comical, or just weird. Tip: You can edit sounds exactly as you edit movies, using the same commands and shortcuts. Use the File Open File command to locate a sound file to open. It opens exactly like a QuickTime movie, except with only a scroll bar, no picture. 15.3.3.3. Saving the finished movie After you've finished working on your sound or movie, you can send it back out into the world in any of several ways. If you choose File Save As, for example, you can specify a new name for your edited masterpiece. You must also choose one of these two options: • Save as a reference movie. You'll almost never want to use this option, which produces a very tiny QuickTime file that contains no footage at all. Instead, it's
11. 15.3.3.5. Compression and special effects One of QuickTime Player's most powerful features is hidden in the Export dialog box, in a place where you might never find it. If none of the canned compression settings appeal to you, you can click the Options button. In the Settings dialog box that appears (see Figure 15-10), QuickTime Player Pro offers a staggering degree of control over the movie you're exporting. (The resulting dialog box varies according to the compression method you've selected.) GEM IN THE ROUGH QuickTime Virtual Reality If they live to be 100, most Mac users will probably never encounter a QuickTime VR movie. Yet this kind of "panorama movie" technology is built into every Mac. The trick is finding a QuickTime VR movie; your safest bet is, as usual, the Web. (The best starting point is Apple's own QuickTime VR page, www.apple.com/quicktime/technolo-gies/qtvr.) When you open a QuickTime VR movie, you might think at first that you've simply opened a still photo (there's no scroll bar, for example). The trick is to drag your cursor around inside the photo. Doing so rotates the "camera," enabling you to look around you in all directions. Then try pressing the Shift key, to zoom in (move forward) as much as you like. If you go too far, the image becomes too grainy. Press the Control key to zoom out (move backward). And if you really want to blow your mind, try one of the cubic VR movies posted on that Web page. It lets you rotate your view not just side to side, but also up to the sky and down to your feet. Using the free and commercial tools listed on the Apple Web site (or several that aren't, including Pano Tools), you can even make your own QuickTime VR movies—provided you've got a camera, a tripod, and a good deal of patience.
12. When exporting a movie as a QuickTime Movie, for example, this is where you can specify the compression format, the frames per second, and (by clicking Size) the dimensions of the finished movie. Tip: By clicking Options, you'll find the QuickTime 7 compression scheme called H.264, which offers such great quality at such low file sizes that Apple, among others, gets all sweaty-palmed just thinking about it. It's a terrific compression scheme for any movies that you export—but remember that QuickTime 7 (free for Windows and Mac) is required to see them. Figure 15-10. If you're used to standard moviemaking software, like iMovie or Final Cut, you may wonder where QuickTime Player hides its compression settings. They're here, in the Options dialog box (left) and the Settings boxes that spring from within it (right). Hint: For smooth playback, use 15 frames per second or above (television playback is 30 fps); for best quality but small file size, use the Sorenson 3 Video Compressor or, if you're sure your audience has QuickTime 7 or later, H.264. As a bonus, you even get a Filter button that offers 14 special video effects. They let you blur or sharpen your movie, adjust the brightness or contrast, fiddle with the color balance, and so on. Similarly, when you're exporting a sound file, the Options button lets you specify the sound quality you want, the compression method, and more—all various ways of manipulating the tradeoff between file size and sound quality.