What video formats are compatible with the assets library?

Question

What video formats are compatible with the iPhone\'s assets library?

In other words, for what video formats will ALAssetsLibrary\'s videoAtPathIsCompatibleWithSavedP

Answer 1

If you want a list of supported audio/video technologies, read the iOS Technology Overview, in particular the Media Layer (scroll down to where it says "Video Technologies").

The video technologies in iOS support the playback of movie files with the .mov, .mp4, .m4v, and .3gp filename extensions and using the following compression standards:

• H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 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 by 240 pixels, 30 frames per second, 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 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

• Numerous audio formats, including the ones listed in “Audio Technologies”

That's the reference information for the media frameworks in iOS.