Hi All,
More on this.
I changed the code to compare the current image data to the previous
image data. When I do this, I find that the data returned from the
snapshot command is the *same* on each iteration (the frames should
all be different), so it's just moving the same image into the image
object each time.
!!!!!STOP PRESS!!!!!
I put a breakpoint at the end of the function and I noticed that if I
switch between Run Mode and IDE Mode then continue, it works!!!
So, why should this have an effect? It seems that the correct image
is NOT transfered if the run mode isn't changed between frames. Also
I can't set the "alwaysBuffer" property since if I do it causes a crash!
I've added the code to the function (see below) and it seems to work
*sometimes* but it still looks like its losing a frame buffer
somewhere, the Compare Test hit the breakpoint (see function below)
Is there any work--around for this? Help please!!! Deadline rapidly
approaching.
All the Best
Dave
local sgOldImageData
------------------------------------------------------------------------
------------
--
-- PDFGetFrameThumbnail
--
------------------------------------------------------------------------
------------
function PDFGetFrameThumbnail theFrameNumber,theThumbnailFilePathName
local myCurrentTime
local myImageData
local myFrameRect
local myWindowID
local myMovieFilePathName
--
-- Set up the Rectangle for the Player Frame
--
put the rect of player "PlayerThumbnail" of card 1 of me into
myFrameRect
put the windowID of this stack into myWindowID
--
-- Calculate the Position in the Movie and Play the Frame
--
put the fileName of player "PlayerThumbnail" of card 1 of me into
myMovieFilePathName
--set the filename of player "PlayerThumbnail" of card 1 of me to
empty
--set the fileName of player "PlayerThumbnail" of card 1 of me to
myMovieFilePathName
put theFrameNumber * 24 into myCurrentTime
set the playSelection of player "PlayerThumbnail" of card 1 of me
to true
set the startTime of player "PlayerThumbnail" of card 1 of me to
myCurrentTime
set the endTime of player "PlayerThumbnail" of card 1 of me to
(myCurrentTime + 1)
start player "PlayerThumbnail" of card 1 of me
choose pointer tool
wait .5 seconds with messages
--
-- Grab the Frame
--
put empty into image "ImageThumbnail" of card 1 of me
put empty into myImageData
set the alwaysBuffer of the templateImage to false
export snapshot from rect myFrameRect of window myWindowID to
myImageData as JPEG
choose browse tool
put myImageData into image "ImageThumbnail" of card 1 of me
if myImageData = sgOldImageData then
breakpoint
end if
put myImageData into sgOldImageData
return myImageData
end PDFGetFrameThumbnail
-----------------------------
On 20 Jun 2007, at 11:53, Dave wrote:
Hi,
I have a stack with a player object and am image object. I am
trying to capture fames from a movie. I want to play the movie for
the one frame, then copy that one into the Image Object/ The
following function does this job, however only the first frame is
captured, e.g. it looks like the put myImageData into image
"ImageThumbnail" does not work after the first image has been set.
I've had this before and found that the "always buffer" property
has to be set correctly for it to work. However, as far as I know,
the "always buffer" on the Player object should be set to true, but
when I do this RunRev Crashes. Why is this?
Again, something that should have taken a few minutes to do is
taking up way too much time. Seems like as soon as a I string a few
"exotic" objects together and try to do something that should be
possible, get 95% of the way there and then RunRev crashes in some
strange manner and I spend at least double the amount of time
trying to fix it!
How can I get this to work? Why is "always buffer" causing such a
problem?
Anyway, the function is copied below, it works fine if:
always buffer = true on Player Object
always buffer = false on Image Object
But since I can't set "always buffer" on the Player (since it
crashes RunRev) it only copies the first frame into the image object.
Anyone with any ideas I'd be really grateful.
Thanks a lot
All the Best
Dave
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