Well, I'm glad I had an excuse to play around with Quartz Composer; I
knew about it but had never spent any time with it, very cool!
Unfortunately, it doesn't solve my immediate problem. As far as I
can tell, compositions won't play streaming video at all. They work
great with movies
Hey,
thank you very much. it helped a lot. but i still got one problem.
The image I derive from
NSBitmapImageRep initWithCIImage
is much smaller than the original pixel size of the video. Because of
that i can't use this method for production use. Is there another way
to do this?
Bob,
re: Quartz Composer
Did you check the Asynchronous Mode checkbox on the Movie Loader
patch's Settings panel? This box is specifically available to allow
for playback of streaming material.
re: QT flaw
The supposition that QuickTime is fundamentally flawed is not
accurate. If you
Nikolai,
Can you post a snippet of the code you are using for the conversion?
regards,
douglas
On Apr 25, 2008, at 9:04 AM, Nikolai Hellwig wrote:
Hey,
thank you very much. it helped a lot. but i still got one problem.
The image I derive from
NSBitmapImageRep initWithCIImage
is
Hi,
the image comes from:
- (CIImage*) view: (QTMovieView *)view willDisplayImage: (CIImage
*)image
{
...
// this is the conversion code
NSBitmapImageRep* bitmap = [[NSBitmapImageRep alloc] initWithCIImage:
image];
...
}
regards,
nikolai
Am 25.04.2008 um 16:43 schrieb douglas
Nikolai,
Perhaps you might try creating an empty NSBitmapImageRep with the
size and pixel attributes you need. Then, use the resultant object as
a graphic context and draw your CIImage into that. The Reducer sample
code does something similar to this. I can imagine that this process
Sorry to come in late, but this is something that occasionally comes
up on quicktime-api and quicktime-java. To get text or images on top
of a movie, sometimes it's easier to skip the programming approach and
achieve the effect with authoring. Using the old QuickTime API, you
could add a
On 25.04.2008, at 11:17, Bob Smith wrote:
Well, I'm glad I had an excuse to play around with Quartz Composer;
I knew about it but had never spent any time with it, very cool!
Unfortunately, it doesn't solve my immediate problem. As far as I
can tell, compositions won't play streaming
On Apr 25, 2008, at 7:41 AM, douglas a. welton wrote:
Bob,
re: Quartz Composer
Did you check the Asynchronous Mode checkbox on the Movie Loader
patch's Settings panel? This box is specifically available to
allow for playback of streaming material.
Eh? I don't see a patch called Movie
On Apr 23, 2008, at 1:08 PM, douglas a. welton wrote:
Bob Randall,
If all you want to do is slap some arbitrary text over a movie, I
would suggest that you take a look at using QTMovieLayer and
CATextLayer as the mechanism for doing this. I don't have any code
that I can share with
Am 24.04.2008 um 22:14 schrieb Bob Smith:
In my case all I want to do is be able to add a scrolling text
overlay to whatever video is being played. My app is an
informational video kiosk display driver, it's meant to run mostly
unattended from playlists of images and pre-recorded video,
On Apr 24, 2008, at 4:03 PM, Uli Kusterer wrote:
4) I think there's a sample on Apple's web site somewhere that draws
pushbuttons etc. on top of a movie (or maybe it was an OpenGL
scene?). Anyway, that approach might work for your movie, too.
The sample that does this uses Core Animation
it's the example in the Core Animation Programming Guide, last
chapter. Source isn't available at the moment other than in the book.
It's text laid over a QCCompositionLayer that is running.
On Apr 24, 2008, at 7:03 PM, Uli Kusterer wrote:
4) I think there's a sample on Apple's web site
On Apr 24, 2008, at 4:03 PM, Uli Kusterer wrote:
Am 24.04.2008 um 22:14 schrieb Bob Smith:
In my case all I want to do is be able to add a scrolling text
overlay to whatever video is being played. My app is an
informational video kiosk display driver, it's meant to run mostly
unattended
On Apr 24, 2008, at 9:05 PM, Bob Smith wrote:
In my case all I want to do is be able to add a scrolling text
overlay to whatever video is being played. My app is an
informational video kiosk display driver, it's meant to run mostly
unattended from playlists of images and pre-recorded
Bob,
Scott took the words right out of my keyboard... ;^} Have you taken a
look at the QCTV sample code? It does almost exactly what you want.
regards,
douglas
On Apr 24, 2008, at 9:16 PM, Scott Anguish wrote:
On Apr 24, 2008, at 9:05 PM, Bob Smith wrote:
In my case all I want to do
Hi,
I've done some image analysing software for QTKit Capture. It works
fine. Now i need to use this for a quicktime movie.
I can playback the quicktime movie, but i can't find any delegate
which tells my application, that a new frame is rendered. If i can get
this information i could grab
Nikolai,
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is displayed in
the Target_View. Check the header file for QTMovieView.h (near the
bottom). I think
Le 23 avr. 08 à 19:30, Bob Smith a écrit :
On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote:
Nikolai,
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is
On Apr 23, 2008, at 11:30 AM, Bob Smith wrote:
On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote:
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is displayed
Le 23 avr. 08 à 19:58, Randall Meadows a écrit :
On Apr 23, 2008, at 11:30 AM, Bob Smith wrote:
On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote:
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method
On Apr 23, 2008, at 12:15 PM, Jean-Daniel Dupas wrote:
This delegate method was also added to QTMovieView. It's really
helpfull for example if you want to apply some effect or if you want
to insert text in your movie.
Nice. I use the QTCaptureView version in my app to rotate a live
On Wed, 23 Apr 2008 20:15:39 +0200
Jean-Daniel Dupas [EMAIL PROTECTED] wrote:
Le 23 avr. 08 à 19:58, Randall Meadows a écrit :
On Apr 23, 2008, at 11:30 AM, Bob Smith wrote:
On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote:
QTMovieView has a delegate method
- (CIImage*) view:
Bob Randall,
If all you want to do is slap some arbitrary text over a movie, I
would suggest that you take a look at using QTMovieLayer and
CATextLayer as the mechanism for doing this. I don't have any code
that I can share with you on this, but a previous client project used
these
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