Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Efficient decoding - replace GetMoviePict

I might be arm-twisted and tooth-pulled to work out the Cocoa stuff, but this is 10.5 only --- looking at my user stats for the past 2 months, over a third are still 10.4. So this is not going to work.

frameImageAtTime:withAttributes:error: works on 10.4 with versions of QuickTime that shipped after the 10.5 release. If you make sure and require a current version of QT (7.5 just shipped) with 10.4 you should be good.

I was thinking to use NewMovieFromProperties and QTPixelbufferContextCreate as suggested by some other replies --- are these what's wrapped up inside frameImageAtTime anyway? They are available 10.3 or later. Will the performance be adequate (or are they wrapped cruftiness too?)

You can certainly create an image type you require via the C API. Setting the movie time and producing a frame at time via an idle call is a valid approach as others have mentioned.

You may want to look at the QTPixelBufferVCToCGImage sample.

regards,
edward

Edward Agabeg :: QuickTime & Audio
Developer Technical Support Engineer
Apple Inc.

http://www.apple.com/developer
 http://www.apple.com/quicktime
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
QuickTime-API mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quicktime-api/email@hidden

This email sent to email@hidden
References: 
 >Re: Efficient decoding - replace GetMoviePict (From: Russ <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.