Hey Brian, the screencasts you link (below) are really helpful! Thanks.
cheers r -- <URL: http://r.24x7.com > Deconstructing the status quo, collaboratively On Nov 12, 2005, at 3:14 PM, flyingchaucer wrote: > I've done some fairly extensive tests on getting video to play on the > new 5G iPods and > here is as summary: > > 1. MPEG 4 and h.264 are the only codecs that will play. Technically > these are both MPEG 4 > codecs, meaning that h.264 is MPEG 4 part 10, but there is a > difference in size, quality and > processor demands between the two. > > 2. MPEG 4 specs: MPEG 4 is much more forgiving in terms of > compatibility and encoding > times but is not as economical in file size and the quality lacks in > comparison to h.264. > > Max Data Rate: 2048 Kbps > > Max Frame Size: 480 x 360 (Note the iPod will scale down to 320 x 240 > for playback on > the screen, but will scale up on output to a TV via the cable adapter. > > Max Frame Rate: 30 > > > 3. h.264: The new iPod is very picky about this one and iTunes acts as > a gatekeeper. You > may have a movie that plays fine in iTunes and when you try to > transfer it to the iPod you > get a message that says the file is not compatible with the player. It > is worth the hassel, > though (even considering the steep encoding times) because the files > are small and the > quality is great. > > Max Data Rate: 768 kbps. Now, the tricky thing about this is that this > number refers to the > combined data rate of audio and video, therefore if you decide to > encode your audio at a > 128 bit rate, then you have to drop the video down to 640 kbps (640 + > 128 = 768). You > can play around with these numbers, but it's best stay in multiples of > 16 (that's not > aribitrary by the way, 16 bit is a common recording factor, it's just > a grouping of 1's and > 0's in 16 channels), so 96, 112, 128 etc., then adjust your video > accordingly. > > Max Frame Size: 320 x 240. This is a 4:3 ratio. Lots of users are > shooting DV, that is a 3:2 > aspect ratio so what's going to happen when you encode DV movies is > that it will be > letterboxed on the iPod because the movie will encode to 320 x 213. > The letterboxing is > slight so you probably won't really notice it. Now if you shot > anamorphic (16:9) then the > letterboxing will be more aggressive--320 x 180 and that gets a little > rough to watch. > > Max Frame Rate: 30 > > Miscellaneous: You must restrict the Profile to "Baseline." That can > only be accomplished > using QuickTime Pro or Export via QuickTime (or QuickTime Conversion > in Final Cut Pro). > Compressor can NOT change this setting, therefore Compressor can NOT > be used to > encdode video for the new iPods using h.264. Compressor can ONLY > encode compatible > MPEG 4 movies. > > > 4. Audio: AAC (Advanced Audio Coding); 16 bit; 44.1 sample rate; max > bit rate 128, > stereo. > > > 5. The easiest way to encode is by using QT Pro 7.0.3 or higher and > selecting the iPod > (320x140) setting. There are no options to change. > > 6. You can encode yourself using QT Pro or out of FCP or iMovie using > the formulas above. > > 7. You can use the shareware like Podner (www.splasm.com). > > > I created a video podcast called, Video Podcasting 101, that takes you > through the easiest > steps on a Mac. That can be viewed here: > > http://www.rippletraining.com/ripplecasts.htm > > > Hope this helps, and I'm happy to be a new member of the group. > BG > ------------------------ Yahoo! Groups Sponsor --------------------~--> Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/cd_AJB/QnQLAA/TtwFAA/lBLqlB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/videoblogging/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
