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iTunes Podcasts - About Video Podcasting




All About Video Podcasting

iTunes Podcasts - Formats, Sizes and Information on Succesful Video Podcasts

This KB Article refers specifically to iTunes Video Podcast Requirements

Formatting Video for the iPod Touch, iPhone, iPad or Apple TV

Although iTunes on a mac/pc can play a variety of .mp4, .m4v, and .mov video formats, the iPod, iPhone, iPad and Apple TV all require more specific formats.

The maximum video size supported by each device is:

  • iPhone 3G/3GS: 640x480
  • iPod Touch & iPhone 4: 960x640
  • iPad: 1024x768
  • Apple TV: 1280x720

To optimize for all four platforms, we recommend that your source file is at least 640 pixels wide and that you use the built-in iPod converters in Compressor (H.264 for iPod), QuickTime X (Save in iPod/iPhone/Apple TV format) or iTunes (Create iPod/iPhone/iPad/Apple TV Version).
Each of these maintains the aspect ratio of your source file and results in an M4V file containing H.264 video (Low Complexity version of the Baseline profile) and AAC-LC audio.
If you want to maximize the screen area of a wide-screen TV, your source file should have an aspect ratio of 16:9 (e.g. 640x360).
If you want to maximize the screen area on the iPod Touch & iPhone, your source file should have an aspect ratio of 4:3 (e.g. 640x480).

You can refer to the specifications below if you are not using the recommended built-in converters in Compressor, QuickTime X, or iTunes...

iPhone 3G/3GS can play the following video formats:

  • H.264 video, up to 1.5 Mbps, 640 x 480, 30 frames per sec., Low-Complexity version of the Baseline Profile with AAC-LC audio up to 160 kbps, 48 Khz, stereo audio in .m4v, .mp4, and .mov file formats
  • H.264 video, up to 768 kbps, 320 x 240, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC audio up to 160 kbps, 48 Khz, stereo audio in .m4v, .mp4, and .mov file formats
  • MPEG-4 video, up to 2.5 Mbps, 640 x 480, 30 frames per sec., Simple Profile with AAC-LC audio up to 160 kbps, 48 Khz, stereo audio in .m4v, .mp4, and .mov file formats

iPod Touch & iPhone 4 can play the following video formats:

  • H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
  • MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
  • Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

iPad & Apple TV can play the following video formats:

  • H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
  • MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
  • Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format


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