Re: view:(QTMovieView *)view willDisplayImage:
Re: view:(QTMovieView *)view willDisplayImage:
- Subject: Re: view:(QTMovieView *)view willDisplayImage:
- From: Mike Abdullah <email@hidden>
- Date: Thu, 04 Aug 2011 20:25:56 +0100
Have you tried putting both the movie view, and a custom overlay inside of a layer-backed view?
The more traditional route I think is to add a child window for the overlay, keeping its size/placement in sync with the parent window
Sent from my iPad
On 4 Aug 2011, at 08:13 PM, julius <email@hidden> wrote:
> Hi,
> I've been looking for a way to draw on top of a QT movie whose display dimensions the user can vary using the window's resize handle(?) while it is running.
>
> I have previously stepped through the individual frames but the result was jerky.
> I obtained a smoother result by first converting the movie into an image sequence but the time required to perform the convertion and memory use are unacceptable.
>
> The most promising suggestion I've found so far is the (undocumented) delegate method in QTMovieView.h
> - (CIImage *)view:(QTMovieView *)view willDisplayImage:(CIImage *)image
>
> Some discussions on various forums circa 2008, suggest the method had been used successfully in the past but it's not worked for me.
> XCode seems not to recognise it.
>
> Is the method no longer extant?
> Should I look to try another approach e.g. Core Video?
> I use XCode 3.2.6
>
> Julius
>
> http://juliuspaintings.co.uk
>
>
>
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