User Manual-Mac

131
Using Apple Compressor
The Matrox MAX H.264 Blu-ray settings encode video only. Audio is not
encoded by the Matrox MAX H.264 codec when creating H.264 elementary
streams for Blu-ray. To include audio when exporting to Blu-ray format, you
must assign a separate audio setting to your source media file. However, audio is
encoded by the Matrox MAX H.264 codec when creating QuickTime files for the
web and mobile devices. The Matrox MAX H.264 elementary stream files that
you create for Blu-ray Disc using Compressor can be imported directly to Adobe
Encore and Roxio Toast without having to transcode the files.
Matrox MAX technology also supports the closed caption data from SCC files
for web deliverables (.mov) when encoding at 1:1, or when downscaling. When
an SCC (CEA-608) closed caption file is associated with your source media file
in Compressor, Matrox MAX technology embeds the closed caption data in the
encoded video file (.mov).
Assigning a Matrox MAX H.264 setting
This section describes how to assign a Matrox MAX H.264 setting to your source
file in Apple Compressor. The Matrox MAX H.264 settings include the
predefined settings installed with your MXO2 software, and any custom settings
that you create (see “Creating a custom Matrox MAX H.264 setting” on
page 132).
¦NoteWhen selecting a predefined Matrox MAX H.264 setting, any
modifications made to your source video’s frame size in your application must be
taken into consideration. For example, if your source video was cropped in your
application, your source video’s frame size is the cropped frame size and not the
original frame size.
The predefined Matrox MAX H.264 settings that are installed with your MXO2
software are located in Compressor’s
Settings window, under Custom >
Matrox MAX H.264 Settings
. The predefined Matrox MAX H.264 settings are
separated into three folders: Blu-ray, Fast Encode, and High-Quality:
•
Blu-ray Use these settings for all Blu-ray deliverables. The encoded file’s
extension will be .264.
¦NoteFor compatibility with most Blu-ray players and Adobe Encore, the
predefined Matrox MAX H.264 settings for Blu-ray use a simple GOP
structure.
•
Fast Encode Use these settings for fast encoding of QuickTime files.
These settings leverage your system’s resources with the MXO2 hardware,
resulting in even faster encoding times. The encoded file’s extension will be
.mov.
¦NoteIf your source video must be scaled for encoding and its aspect ratio
does not match the compression aspect ratio, with Compressor v3.5 or later,