Apple 7.2 manual 3G File Format Export Options, 3G Video Export Options

3G File Format Export Options

After you choose File > Export and click Options, the first two items in the File Format pop-up menu are the standard formats.

Â3GPP is for GSM networks. With this format, you can use:

ÂMPEG-4, H.263, or H.264 video

ÂAAC or AMR audio

Â3G timed text

Â3GPP2 is for CDMA 2000 networks. With this format, you can use:

ÂMPEG-4, H.263, or H.264 video

ÂAAC, AMR, or QCELP audio

Â3G timed text

ÂMovie fragments (enables playback to start sooner for longer movies, since only the fragment, not the whole movie, must fit on the handset)

The remaining formats are provided for specific networks. With these formats, you can restrict distribution so that a file can’t be shared from the recipient’s phone (set this option in the Advanced pane). These formats may limit the acceptable file size or data rate; check with the service provider for more information.

Â3GPP (Mobile MP4) is for NTT DoCoMo’s i-motion3G service. With this format, you can use the 3GPP options described above.

Â3GPP2 (EZmovie) is for KDDI’s 3G network service. This format provides the same options as 3GPP2 (described above), except for AMR audio support.

ÂAMC (EZmovie) is for KDDI subscribers with AMC-capable phones. With this format, you can use:

ÂMPEG-4 video

ÂQCELP audio

ÂKDDI’s text format

3G Video Export Options

ÂVideo Format: If your source movie has only one video track and it is already compressed, you can choose “Pass through” (so that the video doesn’t get compressed again).

ÂData Rate: The more kilobits per second (kbps), the better the movie quality. For best playback, however, don’t choose a data rate higher than the available bandwidth.

ÂOptimized for: If you choose H.264 from the Video Format pop-up menu, choose your intended delivery method from the “Optimized for” pop-up menu. This setting tells the codec how much the data rate can vary above and below the data rate you choose.

Chapter 4 Exporting Files with QuickTime Pro

51