Apple Compressor 3 - Manual (Page 157)

• Device: Select one of the following device options from the pop-up menu:
• iPod/iPhone (VGA): This option creates video output files with a frame width of 640
pixels.
• iPod/iPhone (Anamorphic): This option creates video output files with a frame width
of 640 (anamorphic) pixels.
• iPod/iPhone (QVGA): This option creates video output files with a frame width of 320
pixels.
• Apple TV SD: This option creates video output files with a frame width of 640 pixels
with a higher bit rate range than the iPod/iPhone 640 (VGA) option.
• Apple TV SD (Anamorphic): This option creates video output files with a frame width
of 720 (anamorphic) pixels.
• Apple TV HD: This option creates video output files with a frame width of 1280 pixels,
except when the aspect ratio is set to 4:3. In that case, the video output files have
frame dimensions of 960 x 720 (anamorphic) pixels for frame rates above 24 fps and
1280 x 720 (square) pixels for lower frame rates.
• iPhone (Local/WiFi): This option creates video output files with a frame width of 480
pixels.
• iPhone (Cellular): This option creates video output files with a frame width of 176
pixels.
• Aspect Ratio: Use the Aspect Ratio pop-up menu to choose the exact pixel dimensions
of the output media file. The available options depend on which device option you
selected. See
Aspect Ratios for Apple Devices for more information.
The Aspect Ratio setting also has an Automatic button. Clicking the Automatic button
causes the encoder to choose the aspect ratio that matches the source video file.
157 Chapter 12 Creating H.264 for Apple Devices Output Files