Maximum bit rate for video

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Level 2

425 points

Maximum bit rate for video

I am using Handbrake to convert some video for use on my iPod. Their FAQ alleges that with the advent of iTunes v7.4 the iPod can handle an average bit rate of 2500 kbps. However, I find that the video intermittently pauses briefly on playback if I encode at that rate. Does anyone know the maximum bit rate that the iPod can handle?

2x2.5G5, G4 PB, Mac OS X (10.4.2)

Posted on Sep 16, 2007 5:04 AM

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Answer 1

PT

Level 7

20,894 points

Sep 16, 2007 2:08 PM in response to Steve Kale

Changes to iTunes will have no effect on what the iPod can handle. Different software and hardware.
Which iPod are we talking about? The original 5th generation iPod or the second versions (aka "5.5" gen)?
http://support.apple.com/specs/ipod/iPodwith_video_30_60GB.html
says...
H.264 video: up to 768 Kbps, 320 x 240, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC up to 160 Kbps, 48 Khz, stereo audio in .m4v, .mp4 and .mov file formats MPEG-4 video: up to 2.5 mbps, 480 x 480, 30 frames per sec., Simple Profile with AAC-LC up to 160 Kbps, 48 Khz, stereo audio in .m4v, .mp4 and .mov file formats
http://support.apple.com/specs/ipod/iPodFifth_Generation_Late2006.html
says...
H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per sec., Baseline Low-Complexity 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 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 by 480 pixels, 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
Patrick

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Answer 2

Steve Kale Author

Level 2

425 points

Sep 16, 2007 10:57 PM in response to PT

Thanks. I'm talking about the version immediately before the latest release (classic and touch). I've seen the information below. But it seems that if I use 2.5mbps setting in Handbrake I get the stochatic playback. But I also noticed that with this setting the total average bit rate of the output exceeds 2500bps. Despite the setting at 2500 it generates 2660 bps according to iTunes Get Info. I'll experiment a bit more but I suspect this is one for the Handbrake forum.

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