The easiest solution is to use QuickTime Pro 7.2, which supports a Movie to iPhone export
command to optimize the movie for Wi-Fi and a Movie to iPhone (Cellular) to prepare a movie for EDGE
network. (Note that QuickTime Pro is paid program.) If you are using another exporting tool, refer to
Table 6-5 to see the recommended settings for the two media files.
iPhone and iPod touch do not support RTP/RTSP streaming. Therefore, if you are using an earlier
version of QuickTime or a third-party tool, be sure to turn off any streaming option that uses RTP/RTSP.
Zoom button
Figure 6-16: Zoom button toggles between original
aspect ratio and cropped.
Table 6-4: Aspect Ratios for iPhone and iPod touch
Aspect ratio
Maximum resolution
supported
Recommended resolution
for Wi-Fi videos
Recommended resolution
for EDGE videos
16:9 (1.78:1) 640 ?— 360 480 ?— 260 176 ?— 99
4:3 (or 1.33:1) 640 ?— 480 480 ?— 360 176 ?— 144
2.35:1 640 ?— 272 480 ?— 204 176 ?— 75
Chapter 6: Advanced Programming Topics: Canvas and Video
150
Table 6-5: Optimizing Video for iPhone and iPod touch
Connection Video Audio File type
Wi-Fi H.264 Baseline
900 kbit bit rate
480 ?— 360 resolution
30 fps
Preserve aspect ratio: Fit within size
128kbit, AAC-LC .
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