Apple 7.2 manual Exporting MPEG-4 Files, Creating Reference Movies to Optimize Web Playback

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If you want to stream a QuickTime movie using QuickTime Streaming Server, you should use a web-optimized video or audio compressor to compress the movie file. All QuickTime compressors are compatible with QuickTime Streaming Server, but the compressors listed here are optimized to give the best results for delivery over the Internet. For a complete list of compressors that QuickTime supports, see the Products area of the QuickTime website (www.apple.com/quicktime/products/).

ÂVideo compressors: H.264, MPEG-4, Sorenson Video (any version), H.263, H.261

ÂAudio compressors: AAC, QUALCOMM PureVoice, AMR, QDesign

For more information about preparing a movie for streaming, go to www.apple.com/ quicktime/tools_tips/tutorials/.

Creating Reference Movies to Optimize Web Playback

You can use reference movies to provide the appropriate movie for different users’ connection speeds. For example, you can have a smaller movie streamed to users connected over a standard modem, and a larger version of the movie streamed to users connected over a broadband connection.

Apple provides a free tool, MakeRefMovie X, that greatly simplifies the process of creating reference movies. You can download this software at: developer.apple.com/quicktime/quicktimeintro/tools/

Exporting MPEG-4 Files

MPEG-4 is the latest worldwide industry standard for delivering professional-quality audio and video over a wide range of bandwidths, from mobile multimedia to high definition. When you want to create a file that will work with another MPEG-4 device, use QuickTime Pro to create MPEG-4 content by exporting a movie.

To export a file to the MPEG-4 format:

1Open the movie you want to export in QuickTime Player, then choose File > Export.

2Choose “Movie to MPEG-4” from the Export pop-up menu.

Note: To create an MPEG-4 movie that is optimized for use with Apple TV or iPod, select “Movie to Apple TV” or “Movie to iPod” from the Export pop-up menu. All of the MPEG- 4 options will be set to the appropriate values for you.

To adjust settings such as file format, compression, and distribution restrictions, click Options. The options you choose depend on the network over which you’ll deliver the file and the viewers’ connection. The following sections describe the options in detail.

MPEG-4 Video Export Options

When you export a movie to MPEG-4 format (by choosing File > Export and then choosing “Movie to MPEG-4”), you access the following options by clicking Options and then clicking Video.

Chapter 4 Exporting Files with QuickTime Pro