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View Full Version : MP4 Movies not syncing



appleguy
Apr 16, 2007, 06:45 PM
I downloaded some HD MP4's from Nasa's website
http://www.nasa.gov/multimedia/videogallery/hd_index.html
they loaded ok into itunes but wouldnt sync down to my AppleTV saying they AppleTV doesnt support the format type.

any ideas here
I wish to thank inadvance the MacRumors Brain Trust


appleguy
Apr 16, 2007, 06:47 PM
I should add that I downloaded the Higher Res quicktime HD version of each file. 2 of them came down as MP4's
7on
Apr 16, 2007, 07:31 PM
:apple:tv does not support that largea resoultion of a file. AKA won't play back HD.
appleguy
Apr 16, 2007, 07:40 PM
:apple:tv does not support that largea resoultion of a file. AKA won't play back HD.

I have other HD files that worked ok.
7on
Apr 16, 2007, 07:43 PM
I have other HD files that worked ok.

maybe the NASA files are at a hgiher bitrate?
appleguy
Apr 16, 2007, 07:52 PM
maybe the NASA files are at a hgiher bitrate?

ok I will have a play with Visual Hub and get content down to the same as the other HD movies I have
appleguy
Apr 16, 2007, 08:58 PM
Done digging and found this

H.264 and protected H.264 (from iTunes Store): Up to 5 Mbps, Progressive Main Profile (CAVLC) with AAC-LC audio up to 160 Kbps (maximum resolution: 1280 by 720 pixels at 24 fps, 960 by 540 pixels at 30 fps) in .m4v, .mp4 and .mov file formats
iTunes Store purchased video: 320 by 240 pixels or 640 by 480 pixels
MPEG-4: Up to 3 Mbps, Simple Profile with AAC-LC audio up to 160 Kbps (maximum resolution: 720 by 432 pixels at 30 fps) in .m4v, .mp4 and .mov file formats
The General
Apr 17, 2007, 03:28 PM
Those videos will not play on the AppleTV. They are 1280x720@60fps. You need to convert them to 1280x720@24fps, then they will work. :)

If you need help with that, feel free to ask.
appleguy
Apr 17, 2007, 04:39 PM
Those videos will not play on the AppleTV. They are 1280x720@60fps. You need to convert them to 1280x720@24fps, then they will work. :)

If you need help with that, feel free to ask.
Thanks
I got them to work
I used Visual Hub
although they didnt work on the 1280x720@24
but they did at 960x540@30
The General
Apr 17, 2007, 05:01 PM
If you use these settings, it will work at 1280x720:

http://img131.imageshack.us/img131/1391/picture1mu3.png
appleguy
Apr 17, 2007, 06:10 PM
If you use these settings, it will work at 1280x720:

http://img131.imageshack.us/img131/1391/picture1mu3.png

Thanks Mate
I will let you know the result
appleguy
Apr 17, 2007, 06:31 PM
If you use these settings, it will work at 1280x720:

http://img131.imageshack.us/img131/1391/picture1mu3.png

Tried those settings and I got "filename" was not copied because the video format is not supported by the Apple TV "Apple TV"
The General
Apr 17, 2007, 06:37 PM
Very strange indeed ... I used those settings and am watching the NASA video on my AppleTV right now. :confused:
lostless
Apr 18, 2007, 01:44 AM
Im suprised how the apple TV refuses to play anything above 30FPS. It has been shown that it uses quicktime, which plays back 60FPS just fine. Heck, even the ipod plays 60FPS just fine. 60FPS is standard TV when deinterlaced proplerly (ive found a way to deinterlace 30FPS interlaced into a 60FPS progressive file. The power of JES deinterlacer). 60FPS is 720P and 1080P standard. I guess fluid motion is a long lost memory. Ahh memories. Maybe apple will see the light and allow 60FPS on the apple tv via firmware upgrade or somthing.
appleguy
Apr 20, 2007, 12:00 AM
Very strange indeed ... I used those settings and am watching the NASA video on my AppleTV right now. :confused:

Sweet. going fine now
spacepower7
Apr 20, 2007, 06:44 AM
It seems the HDTV is still confusing to alot of people.

Lostless
When you say 60 FPS are you meaning frames per second or fields per second? 2 fields = 1 frame

North American TV, even HDTV is all broadcast at 29.97 frames per second or 59.94 fields per second. Currently there is no broadcast of any 1080p material. The only 1080p material is HD-dvd and Blu-Ray. The fastest 1080p available to the public is 1080p at 24 frames per second.

I haven't heard of a TV (any consumer TV) that can display more than 29.97 frames per second (59.94 fields per second) except for the really old black and white TVs that were built before the color broadcast tv system. The old system was 30 frames per second (60 fields per second) which is related to North American power supply of 60Hz/110 voltage. European (and other parts of the world) PAL and Secam frame/field rates are related to their voltage. PAL/SECAM is 25 frames per second/ 50 fields pers second in accordance to their 50Hz/220 voltage

Sometimes the more we learn the more confused we get. I know that I do.
7on
Apr 20, 2007, 10:08 AM
Im suprised how the apple TV refuses to play anything above 30FPS. It has been shown that it uses quicktime, which plays back 60FPS just fine. Heck, even the ipod plays 60FPS just fine. 60FPS is standard TV when deinterlaced proplerly (ive found a way to deinterlace 30FPS interlaced into a 60FPS progressive file. The power of JES deinterlacer). 60FPS is 720P and 1080P standard. I guess fluid motion is a long lost memory. Ahh memories. Maybe apple will see the light and allow 60FPS on the apple tv via firmware upgrade or somthing.

Unless it's a hardware limitation