Encoding for i devices
- 1. iDevice Specification Overview Original iPod iPod iPod touch/ iPhone iPad 1&2 (pre-5g) Nano/Classic iPhone 4/iPod touch Device spec Screen rez 320x240 320x240 480x320 960x640 1024x768 Aspect ratio 4:3 4:3 16:9-ish 16:9-ish 4:3 Codec spec Video codec H.264 H.264 H.264 H.264 H.264 Max data rate 768 kbps 2.5 Mbps 2.5 Mbps 14 Mbps 14 Mbps Max video rez 320x240 640x480 640x480 720p 720p Frame rate 30 fps 30 fps 30 fps 30 fps 30 fps Profile/level Baseline to Baseline to Baseline to Main to Level Main to Level Level 1.3 Level 3.0 Level 3.0 3.1 3.1 Audio codec AAC-LC AAC-LC AAC-LC AAC-LC AAC-LC Max data rate 160 kbps 160 kbps 160 kbps 320 kbps 320 kbps Audio params 48 kHz, 48 kHz, 48 kHz, 48 kHz, 48 kHz, stereo stereo stereo stereo stereo Container m4v/mp4/mov m4v/mp4/mov m4v/mp4/mov m4v/mp4/mov m4v/mp4/mov formats Limited number of devices, very well defined 3 categories, low, medium and high Copyright © 2010 Jan Ozer, All Rights Reserved