iPAD : Using Handbrake and Best Video Settings brake, convert video to ipad

Posted on July 22, 2010


General guideline on best iPad video settings  to use when convert/transcode videos:

Follow the optimal settings to get excellent playback quality.
Codec: H.264
Size: 640*480 or 1280*720
Bitrate: 2500kbps
Frame rate: 30fps

Codec: aac
Sample rate: 48khz
Bitrate: 160kbps
Channels: Stereo

Notes: iPad supported 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, 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
* Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable

USING Handbrake to convert on the MAC:

Handbrake is designed to transform many different types of media into H.264, a format that will work on any of Apple’s mobile devices.

Launch HandBrake and select the DVD file you just transferred to your Mac. By default, HandBrake will assume that the track with the longest duration is the movie you’re interested in transcoding, but you can always change this by clicking on the Title pop-up menu (top left of the interface). All the other parameters may look a little intimidating if you’ve never used the program before, which is why HandBrake comes with a series of presets. If they’re not immediately apparent, you can reveal them by clicking on the Toggle Presets icon at the top right of the interface. The first time you use HandBrake, click on the cogwheel button at the bottom of the Presets sidebar and select Update Built-in Presets to get the latest settings.

Since the iPad is such a new device, you might need to update the presets in your Handbrake software.  First, you need to download the presets. To import the presets, choose go to Presets -> Import in the Handbrake menu and select the preset files you just downloaded and unzipped. That’s all you have to do. They should appear in the Handbrake presets panel, available for use.

Once selected, click Start, and HandBrake will take care of the rest. This transcoding process can take up to an hour plus or more. Handbrake will let you queue up several projects and run them sequentially when your Mac is unused.

DIY encoding settings : If you’re a little more adventurous, you can experiment with the settings. For instance, a 2.5-hour movie will take up roughly 1.5GB using the Universal preset and the quality will be good for viewing on the iPad.  The lowest acceptable quality is around 750kbps or so.  Ultimately it comes down to personal preference, experiment with a few short videos to find your own sweet spot for file size vs. image quality.

http://gizmodo.com/5508909/ipad-test-notes-your-video : A good general article to read about transcoding videos


Posted in: Apple iPAD