On Apr 9, 2006, at 7:26 PM, M. Robert Spryn wrote:
That being said, I don't believe that the current problem with
hardware
acceleration changing the colors should be "just the way it is."
Doh! I'm not making excuses for it...I'm just trying to help
identify the
problem and offer workarounds.
Yea I'm with you and I do thank you for your time. Your thoughts
are definitely helpful! Didn't mean to sound nasty or anything. I'm
just hoping Apple improves these hw acc issues.
I guess what I'm saying is I want my h.264 movies to look at
least as
good (color wise) on all machines as the same movie does encoded
with
Sorenson 3 or regular mp4.
On my machine, hardware acceleration affects color similarly for
any of
those formats. It doesn't on yours? (Can you post screenshots?)
I don't think either of those formats (Sorenson 3 or standard mpeg
4) are supported by hw acc. On any of the machines I've they appear
the same in every application and toggling core video on and off
does nothing. Both formats maintain color and gamma extremely well
from machine to machine. That's why I was so confused that h.264
looked so washed out and color shifted... until I realized that
core video was to blame (on macs.) But yea even on PC I've tested
the same Sor 3 and mp4 clips... and they look correct.
I'm not convinced this is a CoreVideo issue, as IIRC the problem
manifested itself when H.264 first came to Quicktime, which I believe
was pre-CoreVideo/Tiger, no?
In my initial round of tests I pretty well recall linking this issue
more to display gamma assumptions not matching up with reality than
any H/W accel. issue - though admittedly I had never considered H/W
acceleration as a factor at all! It could be both, for all I know!
Cheers -R
_______________________________________________
Do not post admin requests to the list. They will be ignored.
QuickTime-Users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quicktime-users/email@hidden
