• VEGAS Pro

  iPad 2 – Compression settings?

  Posted by Frank Manno on April 4, 2011 at 8:52 am

  I’m trying to encode video for the iPad 2.

  I’m using 1280 x 720 a 5mbps and it seems to be working well. (.MP4) The source footage is 1920 x 1080 HD.

  I’m now trying to put some PAL 720×576 interlaced files on the iPad 2 and it won’t let me.

  Where can I find out which video sizes the iPad supports?

  I know 1280 x 720p is one of them. Anything else?

  I’m using Sony Vegas – How do you guys go about putting 1920×1080 footage on to it? WHich Vegas render settings do you use?

  -Frankie

  John Rofrano replied 15 years, 1 month ago 2 Members · 4 Replies
• 4 Replies

• 

  John Rofrano

  April 4, 2011 at 10:56 am

  [Frank Manno] “Where can I find out which video sizes the iPad supports?”

  Hmmm… I would try the Apple web site. It says:

  Video formats supported: 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

  You might want to start with the MainConcept AVC codec which already has Apple iPod templates that are simlar. The Apple iPod 640×480 Video is probably a good place to start and modify from there.

  ~jr

  http://www.johnrofrano.com
  http://www.vasst.com
• 

  Frank Manno

  April 4, 2011 at 12:46 pm

  Just what I was looking for – Thanks. 🙂
• 

  Frank Manno

  April 5, 2011 at 4:48 am

  Thanks for the response John..

  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

  Based on the info above, would you be able to tell me which codec to use in Vegas? My source is 1920 x 1080p. Obviously I would need to render out to 1280 x 720p (according to above).

  Above it has ‘H.264’ up to 720p. That seens ok right? Thing is, which of the codecs is ‘h.264’?? I can’t find h.264 in Vegas.

  Also, ‘motion JPEG’ seems to support 1280 x 720 as well according to the specs above – Which codec does M-Jpeg in Vegas? Again I can’t find it 🙁

  Thanks!
• 

  John Rofrano

  April 5, 2011 at 3:42 pm

  [Frank Manno] “Above it has ‘H.264’ up to 720p. That seens ok right? Thing is, which of the codecs is ‘h.264’?? I can’t find h.264 in Vegas. “

  H.264 is also known as the Advanced Video Codec (AVC) part of the MPEG-4 spec so MainConcept AVC and Sony AVC are both H.264 codecs. You will need to create a template for Apple TV.

  Here is how I would create the template: I would change your project to HDV 720-30p (1280×720, 29.970 fps) (just to create the template). Then use File | Render As… and select MainConcept AVC and the Default Template and press the Custom… button. What the default template does is use your project properties. That’s why I had you change your project properties to match the render properties that you want. This is only to set the template up the first time.

  The Width and Height should be set to: 1280×720
  The Profile should be set to: Main
  The Frame rate should be set to: 29.970 (NTSC)
  The Field Order should be set to: None (progressive scan)
  The Pixel Aspect Ratio should already be 1.0000

  had you not changed your project settings first, you would have had to change most of these so it was just a short-cut to get what we want faster.

  Change the bit rate Maximum (bps) to: 4,000,000
  Change the bit rate Average (bps) to: 2,500,000

  Save this and give it name like “Apple TV 720p”

  This should be a good starting point. The only thing you would play with from here is the bit rate for quality and size. That should get you close.

  (note: I don’t have an Apple TV so I’m just going by the specs you listed, other may have real experience in this and provide better parameters)

  ~jr

  http://www.johnrofrano.com
  http://www.vasst.com

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