Pre-encoding tasks, Automatic deinterlacing, Crop the source before encoding – Adobe Premiere Pro CS4 User Manual
Page 445: Show or hide the options tabs
439
USING ADOBE PREMIERE PRO CS4
Exporting
Last updated 11/6/2011
Note: The export options available largely depend on which version of Adobe Media Encoder is installed. For example, if
Adobe Media Encoder is installed with a stand-alone version of Adobe InDesign, it can only export H.264 and FLV video.
If it is installed with Production Premium, Adobe Media Encoder can export all of these formats. For more details,
After you have chosen a format setting, choose one of the available presets before moving on to pre-encoding tasks
and exporting. For more information about choosing Presets, see “
Pre-encoding tasks
In general, it’s best to apply certain processing options—such as deinterlacing and cropping—to an exported file before
encoding it to a particular format. Doing so can prevent visual artifacts associated with performing the same tasks after
encoding. These tasks are pre-encoding tasks. The cropping options, deinterlacing options, and filters options you
specify in the Export Settings dialog box are applied before encoding.
Note: You can access the Gaussian Blur filter option (a pre-encoding task) by selecting the Filters tab.
Automatic deinterlacing
Adobe Media Encoder deinterlaces video before encoding whenever you choose to encode an interlaced source to a
noninterlaced output.
Crop the source before encoding
1
In the Export Settings dialog box, select the Source tab.
2
Select the Crop button and do any of the following:
•
To crop the image interactively, drag the sides or corner handles of the crop box around the source image.
•
To crop numerically, enter the values for Left, Top, Right, Bottom, in pixels.
•
To constrain the proportion of the cropped image, choose an option from the Crop Proportions menu.
3
Click the Output tab to preview the cropped image.
4
From the Crop Setting menu, choose one of the following:
Scale To Fit
To eliminate letterboxing and pillarboxing resulting from cropping, or from using video of different pixel size.
Black Borders
Applies a black border to the video even if the target dimension is smaller than the source video.
Change Output Size
To automatically set the frame height and frame width of the output to the height and width of
the cropped frame. Choose this setting if you want to export content for use with Flash Player or other web applications
without black borders such as those used with letterboxing or pillarboxing.
Exporting video at the same dimensions or aspect ratio as the source video will prevent the black borders created when
scaling or cropping.
Note: The minimum size to which you can crop an image is 40 pixels by 40 pixels.
Show or hide the options tabs
In simple mode, the options tabs are not visible in the Export Settings dialog box. To see the options tabs, toggle the
view to advanced mode.
❖
Do one of the following:
•
To show the options tabs, click the Advanced Mode button
.
•
To hide the options tabs, click the Simple Mode button
.