Re: [videoblogging] Re: Initial iPod Compatibility Tests
Thanks Enric, it's strange that it does not open in QT. For me it does. Oh well... On 11/27/05, Enric [EMAIL PROTECTED] wrote: --- In videoblogging@yahoogroups.com, Christopher Ivanyi [EMAIL PROTECTED] wrote: Hello Michael: I made a DV movie and exported a self-contained quicktime versionwith all the original DV settings, except for the size I set to 640 x 480.I opened it up in QT Pro, and exported as a MOVIE to iPOD (320x240).I endedup with the .m4v.But I changed the extension from .m4v to .mov. -- simplychanging the number 4 to the letter 0, kind of a longwinded approach but I am curios if it will play on the iPod? Could you or anyone please check this .mov to see it it plays on theiPod? http://55broad.video.blip.tv/Civanyi-MissingPlacesH264iPodVersion908.mov chris @ www.cafesiena.blogspot.comI tried to get it to load in quicktime 7, but quicktime said it wasn't an understood format.I can't get it to go into iTunes as .mov, itwill come in as .m4v.There may be something in the file header thatspecifies it to be m4v.-- Enric Yahoo! Groups Sponsor ~-- Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home pagehttp://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/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/ YAHOO! GROUPS LINKS Visit your group "videoblogging" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [videoblogging] Re: Initial iPod Compatibility Tests
Hey Steve: What you are saying to me is that you simply changed the extension from .mov to .mp4 and it worked on the iPod? I'm confused. Because I did not do the export to .mp4, selecting the baseline thing that Michael described. Rather, I made a DVNTSC 640x480 movie from the original DV movie. I then exported it Movie to iPod (320x240), and simply changed the extension from .m4v to .mov. It should have that main profile. But since you say it plays on your iPod, I'll go ahead and change the extension to .mp4 and upload the video to the server again. Thanks for you help. On 11/27/05, Steve Watkins [EMAIL PROTECTED] wrote: m4v files are mp4 files, not movs. So it is fine to rename a m4v file to end in .mp4 instead, but dont rename it to .mov If I rename it to .mp4 then it works on the ipod. Steve Elbows --- In videoblogging@yahoogroups.com, Enric [EMAIL PROTECTED] wrote: --- In videoblogging@yahoogroups.com, Christopher Ivanyi [EMAIL PROTECTED] wrote: Hello Michael: I made a DV movie and exported a self-contained quicktime version with all the original DV settings, except for the size I set to 640 x 480. I opened it up in QT Pro, and exported as a MOVIE to iPOD (320x240). I ended up with the .m4v. But I changed the extension from .m4v to .mov. -- simply changing the number 4 to the letter 0, kind of a longwinded approach but I am curios if it will play on the iPod? Could you or anyone please check this .mov to see it it plays on the iPod? http://55broad.video.blip.tv/Civanyi-MissingPlacesH264iPodVersion908.mov chris @ www.cafesiena.blogspot.com I tried to get it to load in quicktime 7, but quicktime said it wasn't an understood format. I can't get it to go into iTunes as .mov, it will come in as .m4v. There may be something in the file header that specifies it to be m4v. -- Enric Yahoo! Groups Links Yahoo! Groups Sponsor ~-- Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
I finally figured out how to return to Quicktime 6 on my G5 with Panther. I had upgraded to Quicktime 7 and the downgrade to Quicktime 6 didn't work correctly. I kept thinking if I had another OS installation, I could put Quicktime 6 on it. Then I thought, duhhh, I do have another OS -- OS 9. So I installed classic, downloaded Quicktime 6.03 for classic and installed 3ivx 4.5.1 for OS 9. So to test I exported from Final Cut Pro 4.5 as self contained quicktime movie the short film. I loaded that into Quictime 6.03 classic and exported using 3ivx. I got the old 3ivx menus and dual pass option for Limit data rate to __ KBytes/sec. Yea! -- Enric --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: That's the same version that they've had. Are you sure it worked correctly? The bug in QT 7 is that when you do dual pass and limit the bit rate, at say 600kbps, it won't respect that and will use whatever is necessary to make a pristine file - something like 1500kbps. Can you verify this? Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org On Nov 3, 2005, at 3:03 AM, Enric wrote: Looks like 3ivx has the Mac Version for Quicktime 7 out! Yahoo! Groups Sponsor ~-- Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
--- In videoblogging@yahoogroups.com, Christopher Ivanyi [EMAIL PROTECTED] wrote: Hello Michael: I made a DV movie and exported a self-contained quicktime version with all the original DV settings, except for the size I set to 640 x 480. I opened it up in QT Pro, and exported as a MOVIE to iPOD (320x240). I ended up with the .m4v. But I changed the extension from .m4v to .mov. -- simply changing the number 4 to the letter 0, kind of a longwinded approach but I am curios if it will play on the iPod? Could you or anyone please check this .mov to see it it plays on the iPod? http://55broad.video.blip.tv/Civanyi-MissingPlacesH264iPodVersion908.mov chris @ www.cafesiena.blogspot.com I tried to get it to load in quicktime 7, but quicktime said it wasn't an understood format. I can't get it to go into iTunes as .mov, it will come in as .m4v. There may be something in the file header that specifies it to be m4v. -- Enric Yahoo! Groups Sponsor ~-- Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
m4v files are mp4 files, not movs. So it is fine to rename a m4v file to end in .mp4 instead, but dont rename it to .mov If I rename it to .mp4 then it works on the ipod. Steve Elbows --- In videoblogging@yahoogroups.com, Enric [EMAIL PROTECTED] wrote: --- In videoblogging@yahoogroups.com, Christopher Ivanyi [EMAIL PROTECTED] wrote: Hello Michael: I made a DV movie and exported a self-contained quicktime version with all the original DV settings, except for the size I set to 640 x 480. I opened it up in QT Pro, and exported as a MOVIE to iPOD (320x240). I ended up with the .m4v. But I changed the extension from .m4v to .mov. -- simply changing the number 4 to the letter 0, kind of a longwinded approach but I am curios if it will play on the iPod? Could you or anyone please check this .mov to see it it plays on the iPod? http://55broad.video.blip.tv/Civanyi-MissingPlacesH264iPodVersion908.mov chris @ www.cafesiena.blogspot.com I tried to get it to load in quicktime 7, but quicktime said it wasn't an understood format. I can't get it to go into iTunes as .mov, it will come in as .m4v. There may be something in the file header that specifies it to be m4v. -- Enric Yahoo! Groups Sponsor ~-- Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
--- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: That's the same version that they've had. Are you sure it worked correctly? The bug in QT 7 is that when you do dual pass and limit the bit rate, at say 600kbps, it won't respect that and will use whatever is necessary to make a pristine file - something like 1500kbps. Can you verify this? Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org You're probably right on that. I didn't look closely at the 3ivx QT7 problem described in prior posts. I recall I couldn't do dual pass at all in the out of box install of QT7. So that I can do one and it looks good with the 3ivx download got me excited. ;) On Nov 3, 2005, at 3:03 AM, Enric wrote: Looks like 3ivx has the Mac Version for Quicktime 7 out! Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
OK, looks like my files are vanquished. A friend from Oz just confirmed what Verdi/Steve have been saying. But I have a _possible_ workaround to get H.264 into a mov file that is ipoddable. Just trying it now. Will report. Waz. --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: On Nov 1, 2005, at 6:31 PM, wazman_au wrote: If you would be so kind, please double-check as to whether it's true. The latest post at Crash Test Kitchen is a .mov file compressed using H.264 and if you're right it won't work on your iPod. iTunes won't transfer this file to my iPod because it says it can't play it. :( Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org 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/
[videoblogging] Re: Initial iPod Compatibility Tests
Yes that one works on the ipod :) What method did you use? Save to baseline h264 .mp4 then load the .mp4 into quicktime and save as a self-contained .mov? I just tried that method myself and it works, so I guess so. Groovy, didnt take long to come up with a workaround, nice one. Steve of Elbows --- In videoblogging@yahoogroups.com, wazman_au [EMAIL PROTECTED] wrote: OK Mike, I've tried to come up with a workaround so we can have H.264 inside a .mov file that's iPoddable. Here's the link, if you wouldn't mind downloading it and trying it out: http://www.crashtestkitchen.com/video/steakpieH264ipod.mov I haven't fed this file out to iTunes yet because I'd like to know if it works on iPods first. So you'd have to download it and try it manually on your vidpod. Waz www.crashtestkitchen.com --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: On Nov 1, 2005, at 6:31 PM, wazman_au wrote: If you would be so kind, please double-check as to whether it's true. The latest post at Crash Test Kitchen is a .mov file compressed using H.264 and if you're right it won't work on your iPod. iTunes won't transfer this file to my iPod because it says it can't play it. :( Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/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/
Re: [videoblogging] Re: Initial iPod Compatibility Tests
Yeah that works great. I'll add this to my post at FreeVlog. Looks like we'll need some new tutorials soon. Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org On Nov 2, 2005, at 7:05 AM, wazman_au wrote: OK Mike, I've tried to come up with a workaround so we can have H.264 inside a .mov file that's iPoddable. Yahoo! Groups Sponsor ~-- Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
It works! It works! How on earth did you do it? I've been trying to figure that out for a week! Richard --- In videoblogging@yahoogroups.com, wazman_au [EMAIL PROTECTED] wrote: OK Mike, I've tried to come up with a workaround so we can have H.264 inside a .mov file that's iPoddable. Here's the link, if you wouldn't mind downloading it and trying it out: http://www.crashtestkitchen.com/video/steakpieH264ipod.mov I haven't fed this file out to iTunes yet because I'd like to know if it works on iPods first. So you'd have to download it and try it manually on your vidpod. Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/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/
[videoblogging] Re: Initial iPod Compatibility Tests
Hey Mike, If you're correct about baseline vs main profile as applied to .mov files, it's ridiculous. Why would Apple nobble their own format like that? Some of choose to use .mov files compressed with H.264 because of the potential to add hyperlinks in a .mov file. To lose that functionality is a big bummer. AND to find this out after lashing out and buying QT7 for Windows is even worse! If you would be so kind, please double-check as to whether it's true. The latest post at Crash Test Kitchen is a .mov file compressed using H.264 and if you're right it won't work on your iPod. Thanks, Waz www.crashtestkitchen.com --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: I just got a new iPod yesterday and I've been doing some tests with it. Here's what I've figured out so far. Please feel free to add to this. Videos encoded with 3ivx and Apple's mpeg4, with AAC or mpeg4- audio (QT 6) all seem to work following the tutorials that we've posted at FreeVlog: URL: http://www.archive.org/download/node101FinalCutProCompression/ FCP.compression.mov URL: http://www.archive.org/download/iMovie_Compression/ imovie_compress.mov URL: http://freevlog.org/archive/3ivx.mov The one problem with all of these tutorials is that if you are on Windows you will need the Pro version of QuickTime in order to have access to the AAC audio codec required by the iPod. So, if you do have QuickTime Pro 7 for Windows you can also use it compress full resolution DV files (AVI format) using the process in this tutorial: URL: http://freevlog.org/archive/wmv.to.qt.mov The difference here being that you won't have to go through Avid Free DV (because you've purchased QT Pro) and you'll be using the AAC audio codec and not IMA 4:1 like the tutorial says. H.264 So the thing about the Baseline profile vs. the Main profile that Steve Watkins was talking about is correct. The iPod is only compatible with H.264 movies using the Baseline profile. The problem is that when you export as a QuickTime movie from FCP, Compressor, QT Pro, iMovie, QT Pro for Windows, etc., you have no ability to select which profile is used. The bad news is that Main is what is used by default. So, any .mov file compressed using H.264 is not going to be compatible with the iPod. But all hope is not lost for those of you wishing to use H.264. What you will have to do is export to MPEG-4, select H.264 as your codec, click the Video Options button and restrict profile to baseline. Of course you also have to use AAC as the audio codec. I've verified that this works on both Mac and PC. Export Movie to iPod (320 X 240) I had hoped that this would be an easy to use preset that would be great for videobloggers and the iPod but it's not. If you edit some DV footage and use this option it will make your compressed video 320 X 213 which looks like crap. What this feature seems intended for (and is good at doing) is taking an old quicktime movie (compressed with something else like Sorenson) that you've already downloaded and make it work on you iPod. That's about it for now. Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org 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/
[videoblogging] Re: Initial iPod Compatibility Tests
Michael (or should I call you Verdi?), I just watched the videos. Great screencasts! Just a few notes after viewing them: In FCP and iMovie, the presenter recommended a key frame every 5 frames. At 15fps, this is a key frame every 333 milliseconds or 3 per second. It seems to me having a key frame that frequently reduces the importance of delta compression in general. Isn't this huge overkill or is this to make the video slider bar work well? (the keyframe recommendation for 3ivx was every 75 frames which works out to be one every 5 seconds. Seems much more reasonable). Recommendations for FCP was 60KBytes/sec which works out to 480kbits per second, while for 3ivx and iMovie, the recommendation was 600kbits/second. In the same ballpark, I just didn't know if they were supposed to be the same. In the iMovie presentation, the presenter mentions that in QT6 that you need to use 60 bits per second (as opposed to the 600kbits/second in QT7). I think the presenter might mean use 60 kbytes per second because that works out to a lot closer to the 600kbits per second recommendation in QT7 (although 75 kbytes per second would be exactly the same). Overall, great videos on how to compress using the various tools. Greg Smith Author, FeederReader - Pocket PC *direct* RSS text, audio, video, podcasts www.FeederReader.com - Download on the Road 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/
[videoblogging] Re: Initial iPod Compatibility Tests
Well most of the methods create mpeg4 which are the same type as most videobloggers have been using for ages anyway, so likely identical to stuff youve already tested in the past. h264 stuff youve already tried and it doesnt play back at all appropriately on a pocketpc at the moment. Also bear in mind that Michael Verdis guides are optimised for the delivery side of things as much as playback quality. They use settings that are way below the spec that the ipod can actually play. Lower framerate, much worse sound quality, and lower resolution. Now I can argue about these things till Im blue in the face, and its pointless. People vary in which factor is most important to them, its a compromise between quality and filesize/storage space/download time. For videoblogging this compromise can be important. Freevlog is for videoblogging, and it mostly makes the right compromises, if I seem to criticise it a lot its only because its so influential and important. But if for example you dont care about filesize, and want to take a load of movies and encode them in a way that gives the best results when you hook your ipod up to the TV, and arent worried about distribution, the advise will be different. Oh Im waffling. Alo I noticed I totally mangled a sentence in a previous email so here is an unmangled version: was: 'This advice wont apply if people are using other pcature devices that may for example record straight toa 23x0240 res.' should be: This advise wont apply if people are using other capture devices that may for example record straight to a 320x240 resolution. Steve of Elbows --- In videoblogging@yahoogroups.com, ecomputerd [EMAIL PROTECTED] wrote: Is there any chance to post actual videos compressed with the listed methods. I want to test compatibility with a Pocket PC so we can end up with recommended compression method and settings that will be compatible with the iPod AND a Pocket PC. My users and I thank you ;- ). Greg Smith Author, FeederReader - Pocket PC *direct* RSS text, audio, video, podcasts www.FeederReader.com - Download on the Road --- In videoblogging@yahoogroups.com, Steve Watkins [EMAIL PROTECTED] wrote: Many thanks for the guides/review. In regards the movie to ipod export option, believe it or not the resolution that its giving you is actually a more accurate representation of your NTSC DV footage than 320x240 is. Its an aspect ratio issue. NTSC is 720x480. To turn 720 into 320, divide by 2.25. To maintain the aspect ratio, the same reduction should also be performed on the vertical resolution. But if you divive 480 by 2.25, you get 213. not 240. So quicktime is actually just trying to maintain the aspect ratio. In other parts of the world that use PAL rather than NTSC, DV res is 720x576. So results are different with PAL footage. I just tried it and my PAL 720x576 footage gets turned into a 300x240 clip. Same reason, its maintaining the aspect ratio. This time its divided the vertical and horizontal resolution by a factor of 2.4. Anyway in practise videobloggers havent been worrying about this stuff, so in every videoblog created with a DV cam, the aspect ratio is slightly wrong on the final 320x240 footage. NTSC footage at 320x240 is stretched, so you are slightly thinner than in real life. PAL footage is slightly squashed, so I am slightly fatter than in real life. More tech info on aspect ratio stuff here: http://www.mir.com/DMG/aspect.html Certainly easier to forget this issue than worry about it I guess, but I can see why Apple have done what theyve done on this one. Steve of Elbows --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: Export Movie to iPod (320 X 240) I had hoped that this would be an easy to use preset that would be great for videobloggers and the iPod but it's not. If you edit some DV footage and use this option it will make your compressed video 320 X 213 which looks like crap. What this feature seems intended for (and is good at doing) is taking an old quicktime movie (compressed with something else like Sorenson) that you've already downloaded and make it work on you iPod. That's about it for now. Verdi -- Me: http://michaelverdi.com RD: http://graymattergravy.com Learn to videoblog: http://freevlog.org Learn to videoblog in person: http://node101.org Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/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
[videoblogging] Re: Initial iPod Compatibility Tests
Steve, thanks for your reply. Agreed on the encoding options. The only thing that I'm not sure of in the H.264 tests was whether it was Baseline or Main. I may have missed mention of H.264-formatted videos available in Baseline. In one of the tutorials Verdi mentions, the presenter says that H.264 is not available for Windows. That may be true (I'm not sure), but a version of H.264 playback *is* available on the Pocket PC, which is what I've been testing. Great work. I view Michael Verdi and yourself as the vocal experts in this area, and I'm glad of any knowledge I can glean from you two. Any small amount of information I can add I hope will be of some benefit to you and all. Thanks again for your work on this! Greg Smith Author, FeederReader - Pocket PC *direct* RSS text, audio, video, podcasts www.FeederReader.com - Download on the Road --- In videoblogging@yahoogroups.com, Steve Watkins [EMAIL PROTECTED] wrote: Well most of the methods create mpeg4 which are the same type as most videobloggers have been using for ages anyway, so likely identical to stuff youve already tested in the past. h264 stuff youve already tried and it doesnt play back at all appropriately on a pocketpc at the moment. Also bear in mind that Michael Verdis guides are optimised for the delivery side of things as much as playback quality. They use settings that are way below the spec that the ipod can actually play. Lower framerate, much worse sound quality, and lower resolution. Now I can argue about these things till Im blue in the face, and its pointless. People vary in which factor is most important to them, its a compromise between quality and filesize/storage space/download time. For videoblogging this compromise can be important. Freevlog is for videoblogging, and it mostly makes the right compromises, if I seem to criticise it a lot its only because its so influential and important. But if for example you dont care about filesize, and want to take a load of movies and encode them in a way that gives the best results when you hook your ipod up to the TV, and arent worried about distribution, the advise will be different. Oh Im waffling. Alo I noticed I totally mangled a sentence in a previous email so here is an unmangled version: was: 'This advice wont apply if people are using other pcature devices that may for example record straight toa 23x0240 res.' should be: This advise wont apply if people are using other capture devices that may for example record straight to a 320x240 resolution. Steve of Elbows --- In videoblogging@yahoogroups.com, ecomputerd [EMAIL PROTECTED] wrote: Is there any chance to post actual videos compressed with the listed methods. I want to test compatibility with a Pocket PC so we can end up with recommended compression method and settings that will be compatible with the iPod AND a Pocket PC. My users and I thank you ;- ). Greg Smith Author, FeederReader - Pocket PC *direct* RSS text, audio, video, podcasts www.FeederReader.com - Download on the Road --- In videoblogging@yahoogroups.com, Steve Watkins [EMAIL PROTECTED] wrote: Many thanks for the guides/review. In regards the movie to ipod export option, believe it or not the resolution that its giving you is actually a more accurate representation of your NTSC DV footage than 320x240 is. Its an aspect ratio issue. NTSC is 720x480. To turn 720 into 320, divide by 2.25. To maintain the aspect ratio, the same reduction should also be performed on the vertical resolution. But if you divive 480 by 2.25, you get 213. not 240. So quicktime is actually just trying to maintain the aspect ratio. In other parts of the world that use PAL rather than NTSC, DV res is 720x576. So results are different with PAL footage. I just tried it and my PAL 720x576 footage gets turned into a 300x240 clip. Same reason, its maintaining the aspect ratio. This time its divided the vertical and horizontal resolution by a factor of 2.4. Anyway in practise videobloggers havent been worrying about this stuff, so in every videoblog created with a DV cam, the aspect ratio is slightly wrong on the final 320x240 footage. NTSC footage at 320x240 is stretched, so you are slightly thinner than in real life. PAL footage is slightly squashed, so I am slightly fatter than in real life. More tech info on aspect ratio stuff here: http://www.mir.com/DMG/aspect.html Certainly easier to forget this issue than worry about it I guess, but I can see why Apple have done what theyve done on this one. Steve of Elbows --- In videoblogging@yahoogroups.com, Verdi [EMAIL PROTECTED] wrote: Export Movie to iPod (320 X 240) I had hoped that this would be an easy to use preset that would be great for videobloggers
[videoblogging] Re: Initial iPod Compatibility Tests
Yeah one of the reasons Im badly behind at providing test clips for people who wanted to try h264 payback on older Macs, is the need to test baseline and main profile ones, as baseline may take less effort to decode. Here are some pretty naff sample I just uploaded, make with qt 7: 320x240 30fps h264 .mp4s at around 700kbits,sec: http://www.unquack.com/baselinetest.mp4 320x240 30fps h264 main .mp4: http://www.unquack.com/maintest.mp4 Unfortunately these have no dsoundtrack at all, so arent the best things for testing really. But its all I have to hand right now. No offense to those video guides but one of the problems with video tutorials is its more hassle to go back and change them. The info about h264 on windows is out of date, and quicktime isnt the only way to play h264 either, but the other methods are a bit 'obscure' so far so I havent promoted them much yet, waiting for this stuff to mature. Same goes for some of your other comments to Michael about stuff in the video guides, eg kbytes/kbits value anomoly, I pedanticated about it ages ago and it was acknowledged but to fix it takes effort time. Steve of Elbows --- In videoblogging@yahoogroups.com, ecomputerd [EMAIL PROTECTED] wrote: Steve, thanks for your reply. Agreed on the encoding options. The only thing that I'm not sure of in the H.264 tests was whether it was Baseline or Main. I may have missed mention of H.264-formatted videos available in Baseline. In one of the tutorials Verdi mentions, the presenter says that H.264 is not available for Windows. That may be true (I'm not sure), but a version of H.264 playback *is* available on the Pocket PC, which is what I've been testing. Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/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/
