Compressor for iphone

[John Fishback]

I don’t remember if FCS 2 had Compressor presets for the iPhone. FCS3 does. Here are the details of the preset:

Name: H.264 for iPod video and iPhone 320×240 (QVGA)
Description: H.264 video @ 600 kbps, progressive, multi-pass. Audio is 44.1kHz, stereo
File Extension: m4v
Estimated size: 257.93 MB/hour of source
Device: iPod/iPhone QVGA
Frame sync rate: 5 seconds
Video Encoder
Format: QT
Width and Height: Automatic
Pixel aspect ratio: Square
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls: Automatically selected: Off
Codec Type: H.264
Multi-pass: On, frame reorder: Off
Pixel depth: 24
Spatial quality: 50
Min. Spatial quality: 50
Key frame interval: 120
Temporal quality: 50
Min. temporal quality: 50
Average data rate: 0.6 (Mbps)
Maximum data rate: 0.768 (Mbps)
Audio Encoder
Format: MPEG4
Sample Rate: 44.100kHz
Channels: 2
Bits Per Sample: 16
AAC encoder quality: high
Data rate: 128 Kbps

John

MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.1, Motion 4.0.1, Comp 3.5.1, DVDSP 4.2.2, Color 1.5.1)

Pro Tools HD w SYNC IO & 192 Digital I/O, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN

[Jacques Hinkle]

Thanks for your reply! CS2 does have presets for the iphone. I tried changing them to what your response showed and when the view is zoomed out it still shows black on the top and bottom of the screen. Basically I can’t have black anywhere when zoomed out.

I really appreciate your help John!

Thanks,
Jacques

[Michael Sacci]

I think you are trying to defeat a feature that is built into the iPhone QT player.

When playing back video the QT has 2 settings full view which gives you the true 16:9 image with the letterbox or zoomed in, which crops off the left and right to fill the tip and bottom without distortion. Cause the screen is neither 4:3 or 16:9. I’m probably telling you something you already know but for others.

The iPhone screen is 480×320 so have you tried that? If that doesn’t help you maybe fighting against the software itself.

[Erik Lindahl]

Was going to add that the iPhone screen is 480-by-320-pixel, not 320×240.

25 / 30 fps, 480×320 pixles at below 1.5Mbit/s will run on the iPhone with ease.

As mentioned above, the iPhone-screen as a 1.5:1 aspect ratio, so either 1.78:1 (i.e. 16×9) nor 1.33:1 (i.e. 4×3). To accommodate this you will have to crop some of your base material.

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Erik Lindahl
Freecloud Post Production Services
http://www.freecloud.se