User Manual-Mac

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Using Apple Compressor
• Square Use this for video that will be displayed on a computer, or
when exporting to 1280×720 or 1920×1080.
• NTSC (4:3) Sets the pixel aspect ratio to 4:3 using 720×480 pixels.
• NTSC (16:9) Sets the pixel aspect ratio to 16:9 using 720×480
pixels.
• PAL (4:3) Sets the pixel aspect ratio to 4:3 using 720×576 pixels.
• PAL (16:9) Sets the pixel aspect ratio to 16:9 using 720×576 pixels.
• DVCPRO HD 720p Sets the pixel aspect ratio to 16:9 using 960×720
pixels.
• DVCPRO HD 1080i 59.94 Sets the pixel aspect ratio to 16:9 using
1280×1080 pixels.
• DVCPRO HD 1080i 50 / HDV Sets the pixel aspect ratio to 16:9
using 1440×1080 pixels.
$ Color space If you entered a custom compression frame size, specify a
color space for your encoded video.
$ Frame rate Select the frame rate that you want for your encoded video.
$ Web streaming (Fast Start) (.mov files only) Select this option if you
want your encoded .mov QuickTime file to play as it is being downloaded
from a standard web server. This option encodes your video as a
QuickTime “Fast Start” file. When the file is being downloaded, it will
begin to play back from a QuickTime application once enough data has
been downloaded to the system for uninterrupted playback. This option
ensures high-quality playback regardless of internet connection speed.
However, viewers with slower connection speeds may wait longer before
the file begins to play.
5 Under GOP Structure, specify the GOP structure settings that you want the
Matrox MAX H.264 codec to use to encode your video:
$ GOP type (.264 files only) Select the type of GOP structure for your
encoded video:
• Simple GOP Offers a fixed structure in how frames are referenced,
and may be more easily decoded than advanced GOPs.
• Advanced GOP (short/long) An advanced GOP has more
structural flexibility than a simple GOP, is capable of using more
reference frames, and therefore may provide better overall
compression. For a “short” advanced GOP, the distance between P
frames is always 4, and for a “long” advanced GOP, the distance
between P frames is always 8.
¡ Important An H.264 elementary stream file for Blu-ray that was created
using an advanced GOP structure may not be compatible with some Blu-ray
players, and may cause stability issues in Adobe Encore when burning a