4.1

Chapter 4 Advanced adjustments 34
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Image type: Choose an image type from the pop-up menu to set an image type for the
transcoded les:
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TIFF (Tagged Image File Format)
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TARGA (Truevision Advanced Raster Graphics Adapter), also referred to as TGA
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DPX
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JPEG
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OpenEXR
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PSD (Adobe Photoshop)
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PNG (Portable Network Graphics)
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Create unique output directory: Select this checkbox to create a folder to hold the output les.
When you choose this option, the les saved to the folder will be named “frame-0,” “frame-1,”
“frame-2,” and so on.
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Add leading zeros to frame numbers: Select this checkbox to have Compressor add leading
zeros to output lenames (“lename-000000,” “lename-000001,” “lename-000002,” and so on).
Retiming
This section contains one property:
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Set duration to: Sets the processing algorithm used to adjust the frame rate during transcoding.
Select one of the following options:
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[Percentage] of source: Modies the output clip’s speed by a percentage of the source clip’s
speed. Enter a value in the percentage eld or choose a preset value from the adjacent
pop-up menu (with a downward arrow).
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[Total duration]: Sets the duration of the clip. Enter a timecode duration in the eld or click
the arrows to increase or decrease the time.
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So source frames play at [frame rate] fps: Nondestructively changes the playback speed of the
clip, without discarding frames or creating new frames. This setting has no eect unless the
“Frame rate” value in the Video inspector is dierent than the source le’s frame rate. For
example, if you add a 10-second source le with a frame rate of 24 fps to Compressor, set the
“Frame rate” property in the Video inspector to 25 fps, and then select “So source frames play
at 25 fps” in the General inspector, the duration of the transcoded clip (at 25 fps) is 9 seconds
and 15 frames.
For more information, see Retime video and audio output on page 71.
Video properties
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Frame size: Use the pop-up menu to set the frame size (resolution) for the output le.
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Pixel aspect ratio: Use this pop-up menu to set the pixel aspect ratio (the ratio between the
image frame width and height). You can also modify the aspect ratio of the output le using
cropping and padding properties. For more information, see Modify frame size overview on
page 69.
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Frame rate: Use this pop-up menu to set the playback rate (the number of images displayed
per second) for the output le. For more information, see Frame rate options overview on
page 71.
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