4.1

Chapter 4 Advanced adjustments 31
H.264 for Blu-ray
The built-in H.264 for Blu-ray setting (in the Create Blu-ray destination) uses the H.264 for Blu-
ray transcoding format. This format encodes H.264 elementary stream les for Blu-ray and
AVCHD DVD authoring. You can also create custom settings that use the H.264 for Blu-ray
transcoding format.
Note: This setting encodes only a video le. Dolby Digital is the recommended audio setting. For
more information, see Dolby Digital on page 25.
The properties of built-in and custom settings that use this transcoding format are located in the
General inspector and Video inspector. These properties are described below.
Important: When you add a setting (or a destination that includes settings) to a job, Compressor
analyzes the source media and then automatically assigns the most appropriate setting
properties (based on the setting’s transcoding format and the characteristics of your source
media le). It’s recommended that you use the automatically assigned setting properties.
Setting summary
Displays the setting name and transcoding format, as well as an estimated output le size. When
you add a setting to a job or change the setting’s properties, this summary automatically updates.
General properties
•
Name: Displays the name of the setting.
•
Description: Displays the description of the setting.
•
Extension: Displays the extension of the output le (.264).
•
Allow job segmenting: If you’ve set up distributed processing, select this checkbox to have
Compressor process the output le using your shared computer group. For more information,
see Transcode batches using other computers on page 101.
•
Default location: Select an item from the pop-up menu to set the default save location for
transcoded les.
•
Stream Usage: Use the pop-up menu to set whether the output le is transcoded for Blu-ray
Disc or AVCHD.
Retiming
This section contains one property:
•
Set duration to: Sets the processing algorithm used to adjust the frame rate during transcoding.
Select one of the following options:
•
[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).
•
[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.
•
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.
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