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HarryKeogh

macrumors 6502a
Original poster
Jun 25, 2008
609
863
Hi guys,

So I have full-length movies (some ripped from DVD, some downloaded) and short videos of the kids taken with my iPhone (these were originally imported into iPhoto and I copied them into iTunes) in my iTunes library.

Any ideas why when I watch them on my Apple TV it takes just a few seconds for the movies to start playing but the home movies shot with the iPhone to slowly load and not play for over a minute after I hit "play"? Both play nice and smoothly but why does a one-minute clip take so long to get going?
 

Madmic23

macrumors 6502a
Apr 21, 2004
892
972
I have the exact same problem. Full HD movies streamed over wifi from my iMac start instantly, but a short 30 second video clip of my son streamed from my iPhone over Airplay takes up to 2 minutes to start playing.

I've heard that this is actually an issue with a setting on the wireless router, but obviously I haven't done the research yet to make the change.
 

priitv8

macrumors 601
Jan 13, 2011
4,028
638
Estonia
Have you checked, what kind of bitrate does iPhone camera produce?
It's over 21Mbps, VBR, 1080p@30fps.
That data rate is 1/2...2/3 of that of a BluRay movie!
~2.5MB/second.
 

HarryKeogh

macrumors 6502a
Original poster
Jun 25, 2008
609
863
DVD at 480i60 resolution? Vs iPhone at 1080p30 resolution?

Have you checked, what kind of bitrate does iPhone camera produce?
It's over 21Mbps, VBR, 1080p@30fps.
That data rate is 1/2...2/3 of that of a BluRay movie!
~2.5MB/second.

I'll have to check these settings when I get home. Thank you both.
 

priitv8

macrumors 601
Jan 13, 2011
4,028
638
Estonia
I'll have to check these settings when I get home.
Unfortunately, I don't know of any way to control this while recording. You only can recode in post to a lower bitrate.
PS the 21+Mbps rate I referred to, was from my 8Mp camera of 4S. 5Mp of iPhone 4 ought produce less than that.
 
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