Adobe 13102498 - Photoshop CS3 - Mac User Manual page 594

Preserve Aspect Ratio Using
Letterbox scales the source proportionally to fit into the clean aperture, adding black bars to the top and bottom or
sides as necessary. Crop centers, scales, and trims to the clean aperture. Fit Within Size adjusts to the destination size
by fitting to the longest side, scaling if necessary.
Specifies the frame rate for the playback of your exported video. Usually, your video looks better if you
Frame Rate
choose a number that is exactly divisible by the frames per second (fps) of your source. For example, if your source
is captured at 30 fps, choose a frame rate of 10 or 15. Don't choose a rate greater than that of your source material.
Specifies that keyframes are generated automatically or specifies how frequently keyframes are created in
Key Frame
the exported video. A higher keyframe rate (lower number) improves video quality, but increases the file size.
(MP4 file format only) Click the Video Options button and specify the following:
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(MPEG-4 Basic and MPEG-4 Improved only) Uses re-sync markers in the video bit-stream. This
Re-sync Markers
can help regain synchronization due to transmission errors.
(H.264 only) Selects profiles for playing video files on a device that conforms to one or more of
Restrict Profile(s) To
the standard's profiles.
(H.264 only) Specifies whether you want the best quality or faster encoding.
Encoding Mode
Specify QuickTime Movie settings (Photoshop Extended)
In the Render Video dialog box, select QuickTime Export and then choose QuickTime Movie from the pop-up menu.
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2 Click the Settings button.
In the Movie Settings dialog box, make sure Video is selected.
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Important: Although the Movie Settings dialog box has Sound options, Photoshop Extended CS3 does not support audio
tracks.
4 Under Video, click the appropriate button to set the following:
Opens the Standard Video Compression Settings dialog box so you can set the video compression and
Settings
accompanying options.
Opens the Choose Video Filter dialog box, where you can apply built-in QuickTime video effects.
Filter
Opens the Export Size Settings dialog box to specify pixel dimensions for your exported video.
Size
(Optional) If your movie is being delivered over the Internet, select Prepare For Internet Streaming and choose
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any of the following:
Sets up the movie to start playing from a web server before the movie has completely downloaded to a
Fast Start
user's computer hard drive.
Fast Start-Compressed Header
a web server before the movie has completely downloaded to a user's computer hard drive.
Sets up the movie to be streamed by a QuickTime Streaming Server.
Hinted Streaming
QuickTime standard video compression settings
The following options are available in the Standard Video Compression Settings dialog box:
Choose the Codec to apply when exporting a file.
Compression Type
Specify the frame rate for your video by choosing the number of frames per second (fps). Some Codecs
Motion
support a specific set of frame rates. Increasing the frame rate may produce smoother motion (depending on the
Specifies an option if the movie needs to be scaled to the new pixel dimensions.
Compresses the movie's header losslessly and sets up the movie to start playing from
PHOTOSHOP CS3 587
User Guide