Adobe Photoshop CS4 - Manual (Page 582)

575 USING PHOTOSHOP CS4
Video and animation
Last updated 1/10/2010
Encoding Mode (H.264 only) Specifies whether you want the best quality or faster encoding.
Specify QuickTime Movie settings (Photoshop Extended)
1 In the Render Video dialog box, select QuickTime Export and then choose QuickTime Movie from the pop-up menu.
2 Click the Settings button.
3 In the Movie Settings dialog box, make sure Video is selected.
Important: Although the Movie Settings dialog box displays Sound options, you cannot adjust the current audio settings.
To include audio in exported files, see “
Preview audio for video layers (Photoshop Extended) ” on page 567.
4 Under Video, click the appropriate button to set the following:
Settings Opens the Standard Video Compression Settings dialog box so you can set the video compression and
accompanying options.
Filter Opens the Choose Video Filter dialog box, where you can apply built-in QuickTime video effects.
Size Opens the Export Size Settings dialog box to specify pixel dimensions for your exported video.
5 (Optional) If your movie is being delivered over the Internet, select Prepare For Internet Streaming and choose any
of the following:
Fast Start Sets up the movie to start playing from a web server before the movie has completely downloaded to a user’s
computer hard drive.
Fast Start-Compressed Header Compresses the movie’s header losslessly and sets up the movie to start playing from a
web server before the movie has completely downloaded to a user’s computer hard drive.
Hinted Streaming Sets up the movie to be streamed by a QuickTime Streaming Server.
QuickTime standard video compression settings
The following options are available in the Standard Video Compression Settings dialog box:
Compression Type Choose the codec to apply when exporting a file.
Motion Specify the frame rate for your video by choosing the number of frames per second (fps). Some codecs support
a specific set of frame rates. Increasing the frame rate may produce smoother motion (depending on the original frame
rates of the source clips) but uses more disk space. If available, specify how often the key frames are generated. (See
“
Understanding QuickTime key frames ” on page 571.)
Data Rate Select (if available for the selected compressor) and type a data rate to place an upper limit on the amount
of video data produced by the exported video when it is played back.
Compressor Set compressor options specific to the selected codec. Click the Option button (if available) to specify
further compressor options. If the Depth menu is available, choose the number of colors to include in exported video.
(This menu is not available if the selected codec supports only one color depth.)
If the Quality slider is available under Compressor, drag the slider or type a value to adjust the exported video’s picture
quality and, consequently, its file size. If you are using the same codec to capture and export, and you’ve rendered
previews of a sequence, you can save rendering time by matching the export quality setting with your original capture
quality setting. Increasing quality above the original capture quality does not increase quality, but may result in longer
rendering times.
Note: Compressor options are not available for the Component Video codec.