Hi George Thanks very much for your answer.
Since I want to use the resulting composition as an image filter (for instance in Final Cut and the like) I don't think either of these routes would work, would they? Or am I being very dense (which is more than possible)? All the best, Simon On 6 Aug 2013, at 16:18, George Toledo <[email protected]> wrote: > You are using some movie playing framework, and have it setup so that the > output image can be successfully received into an image port? > > Then investigate if the movie playing framework has a method to return a > duration. Return that duration as a float. Publish a number input in your > composition, and send the data to that input. > > You should be able to find examples/documentation of this. > > Otherwise, there is also a movie patch in QuartzComposer that delivers a > duration output, but there are some limitations to the patch. > > Best Regards, > George Toledo > > On Aug 6, 2013, at 11:00 AM, Simon Ubsdell <[email protected]> wrote: > >> Hi Achim >> >> Thanks for your advice - I see what you're saying and that makes complete >> sense. Can you think of another way that I could achieve this, i.e. not >> using protocolInput_Image? >> >> All the best, >> >> Simon >> >> On 6 Aug 2013, at 15:18, Achim Breidenbach <[email protected]> wrote: >> >>> Hi Simon, >>> >>> I don't think this is possible. This protocol is defined for images only >>> and so you only get a real image, even if its an extracted frame of a >>> movie. This image maybe just a texture in the graphics card and don't have >>> any timely information. >>> >>> best, >>> >>> Achim Breidenbach >>> Boinx Software Ltd. >>> >>> >>> On 06.08.2013, at 12:37, Simon Ubsdell wrote: >>> >>>> Is it possible to interrogate the length of a clip assigned to a QC >>>> composition via protocolInput_Image such that you can use the duration >>>> value within the composition? >>>> >>>> Many thanks for any advice on this. >>>> >>>> Simon Ubsdell >>>> >>>> _______________________________________________ >>>> Do not post admin requests to the list. They will be ignored. >>>> Quartzcomposer-dev mailing list ([email protected]) >>>> Help/Unsubscribe/Update your Subscription: >>>> https://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com >>>> >>>> This email sent to [email protected] >>> >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com >> >> This email sent to [email protected] > _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
