 |
Author |
Topic: figure out how many frames there are in a movie (Read 594 times) |
|
nuritb
|
figure out how many frames there are in a movie
« on: Oct 26th, 2004, 7:36am » |
|
Hi I am trying to fugure out if it is possible to know how many frames there are in a (qt) movie i am loading into processing
what i am trying to do is:
1.load a move
2.figure out how many frames there are in that movie
3. tell the movie to go to a particular frame (lets say with mouseX..)
is there any code for that ?
thanks nurit
|
|
|
|
|
fjen
|
Re: figure out how many frames there are in a movi
« Reply #1 on: Oct 26th, 2004, 4:42pm » |
|
video support is pretty poor at the moment ... but here's an example of how to get _some_ properties of a BVideo (frame rate, total frames, current frame playing, current movie time):
http://www.florianjenett.de/p55/movie_status.zip
(this assumes your video is in track 1 of the quicktime)
i'm not sure if it's possible with the current implementation of BVideo to jump to a certain frame in a movie easily ... i'd guess not.
what you might be able to do is use the BVideo.movie (which is a QuickTime-Movie Object: quicktime.std.movies.Movie), set this to a certain frame and the call BVideo.readFrame(), the grab the BVideo.pixels ... but this is all undocumented.
best
/F
|
|
|
|
|
nuritb
|
Re: figure out how many frames there are in a movi
« Reply #2 on: Oct 27th, 2004, 6:35pm » |
|
thanks!!!
i tried somethings w the code but still couldnt get it to go to curent frame
heard that in processing 70 theres a jump function that does that?
|
|
|
|
|
fjen
|
Re: figure out how many frames there are in a movi
« Reply #3 on: Oct 27th, 2004, 7:21pm » |
|
ja, the code is just an example of how to _read_ the current frame, not how to set it.
the new version have a new video library, not sure what's in there.
|
|
|
|
|
|
