Apple Compressor 3 - Manual (Page 161)

H.264 Workflows for Apple Devices
The efficiency and quality of H.264 creates a number of options for iPod and Apple TV
video producers.
• Compressor includes two video sizes specifically designed for playback on an iPod or
an iPhone: iPod 320 (QVGA) and iPod 640 (VGA). Both sizes create output media files
that are compatible for playing on an iPod, and both will look good on the display of
the iPod.
• As long as you intend the output media files to be viewed on the iPod itself, you can
use the iPod 320 encoder size, which produces files that are about one half the size
of the iPod 640 encoder size.
• If you expect the output media files to be played on larger displays, whether in iTunes
or on a monitor connected to an iPod, you should use the iPod 640 encoder size
with its higher quality.
• Output media files created with the iPod and iPhone settings will also play on
Apple TV.
• The Apple TV HD encoder size produces video files that are about four times the size
of the iPod 640 encoder size. These are not compatible with iPod playback and may
not play smoothly on older Mac computers.
• If you have assigned chapter markers to the video using the Preview window, iTunes
will automatically use the first marker as the poster frame. If you assigned an image to
any markers in Compressor, the first marker with an image becomes the poster frame
in iTunes. You can change the poster frame in iTunes if necessary. See the iTunes help
for more information. See
Adding Chapter or Podcast Markers to a Clip for more
information about adding chapter markers in Compressor.
Configuring Settings for H.264 for Apple Devices Output Files
To ensure that your output media files are iPod, iPhone, and Apple TV compatible, it is
recommended that you use the standard settings provided in the Apple Devices group
in the Settings tab. For more information on applying settings, see
Assigning Settings to
Source Media Files .
You can also create iPod, iPhone, and Apple TV compatible media files with batch
templates. For more information, see
Quick and Easy Compressor Workflow: Batch
Template Method .
Note: Files created using iPod and iPhone settings can also play on Apple TV.
161 Chapter 12 Creating H.264 for Apple Devices Output Files