Apple Compressor 2 Manual de usuario descargar pdf (Pagina 198)

198 Chapter 15 Adding Frame Controls, Geometry, and Actions to a Setting

Retiming Control

Use the controls in this section to choose the algorithm by which frame rates

are adjusted.

Â Rate Conversion: Use this pop-up menu to choose from the following options. This

decision is a trade-off between faster processing time and higher output quality.

Â Fast (Nearest frame): No frame blending is applied; Compressor simply uses a copy

of the nearest available frame to fill the new in-between frames.

Â Good (Frame blending): Averages neighboring frames together to create new in-

between frames.

Â Better (Motion compensated): Uses motion vectors to interpolate frames.

Â Best (High quality motion compensated): Uses motion vectors to interpolate frames;

this option is particularly useful for transcodes that involve increases in frame rates

(for example, 23.98 fps to 59.94 fps).

Adding Frame Controls to a Setting

You use the Frame Controls pane in the Inspector window to add frame resizing and

retiming adjustments to your settings.

To add automatic frame control adjustments to a setting:

1 Open the Settings tab of the Presets window.

2 Select the setting in the Settings table that you want to modify. (Or select a setting

already applied to a source media file in the Batch window.)

3 Click the Frame Controls tab in the Inspector.

4 Choose Automatic from the Frame Controls pop-up menu.

Compressor analyzes the transcoding job (the source media file and the applied

setting), and then automatically determines the appropriate Frame Controls attributes.

Warning: Using all Best settings may result in unexpectedly long processing times.

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Apple Compressor 2 Manual de usuario Pagina 198