Re: Player/Image Object "always buffer" Problems
Hi, With the switch to and from tool mode, the image and the player are one frame apart, e.g. it should run like this: FramePlayer Image 22 22 -- 22 22 22 27 27 22 27 27 27 32 3227 32 3232 But instead it runs: FramePlayer Image 22 22 -- 22 22 -- 27 27 -- 27 27 22 32 3222 32 3222 So I am getting the buffer from the *previous* frame of the player. Try not using imageData, use "the text of" or just "put" instead: put myVar into image "imageThumbnail" or: set the text of image "imageThumbnail" to myVar I have changed the code to use the "set the text of" form, but it behaves the manner. Also the Stack is flakey, sometimes when I double- click on the player object in the IDE to get its property inspector, RunRev Crashes with unexpected quit. Here is the modified function: 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 .25 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 wait .25 seconds with messages set the text of image "ImageThumbnail" of card 1 of me to myImageData if myImageData = sgOldImageData then breakpoint end if wait 1 seconds with messages put myImageData into sgOldImageData return myImageData end PDFGetFrameThumbnail On 20 Jun 2007, at 17:42, J. Landman Gay wrote: There is a subtle difference between imagedata and the content (the "text") of an image. In Scott Rossi's example, he also uses "text" and it works. -- Jacqueline Landman Gay | [EMAIL PROTECTED] HyperActive Software | http://www.hyperactivesw.com ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
Recently, Dave wrote: > This is weird, it doesn't work here. What happens if you set > "alwaysBuffer" to true? Works the same. > I don't understand a couple of things about your snippet: > >>set the currentTime of player 1 to (F * the timeScale of player 1) > > In my case the timeScale is 600, so frame number * timeScale would > give values that are way off. I multiple by 24 which is (timeScale / > FramesPerSecond = 24). In this case FPS is 25 (I'm hardwiring this at > the moment since I can't find out how to get this info from the player). I just used a relatively large time between frame changes so the updates would be apparent. Nothing to do with your code. >>set text of img _display to myVar > > is there a difference between this and: > > put myImageData into image "ImageThumbnail" The text of an image references both its imageData and alphaData. > It would be nice to know what "alwaysBuffer" actually does. It could > be that there is an old copy of the buffer being used, or RunRev > doesn't think the image has changed. At the lower levels, I don't know what Rev is doing, but again, alwaysBuffer forces the player's content to fall into the object hierarchy of the card, so you can position objects in front of the player, and thus play content behind native Rev objects. When the alwaysBuffer is false, the players content plays (to use an old Director-ism) direct-to-screen, so the player's content temporarily overlaps any object in front of the player. Setting the alwaysBuffer of images should not affect what you are doing. Regards, Scott Rossi Creative Director Tactile Media, Multimedia & Design ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
On Jun 20, 2007, at 9:31 AM, Dave wrote: 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. Dave, I haven't tried what you are doing before so I'm not sure why you are seeing the behavior you are but if you can't get it to work you could try the EnhancedQT external which can export frames in PNG format to a variable. I'm not sure if this is documented in the version I have online (qtSaveMovieSnapShotToFile is though) but it is there and uses the API so it should be reliable. I could also just pass you along the handler from the EQT external if you wanted to incorporate it into the external you already have for this project (seems like you've been working on once based on your posts here). /* * Converts a snapshot of a movie to PNG data and places it into theVariableName. You can then * assign theVariableName to the text of an image. * * @type command * @param movieInputPath * @param theVariableName * @param MaxImageWidth * @param MaxImageHeight * @param MaintainAspectRatio (default true) * @param Time (empty or < 0 to use movie poster frame). * * @return empty or error */ -- Trevor DeVore Blue Mango Learning Systems www.bluemangolearning.com-www.screensteps.com [EMAIL PROTECTED] ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
Dave wrote: 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. Try not using imageData, use "the text of" or just "put" instead: put myVar into image "imageThumbnail" or: set the text of image "imageThumbnail" to myVar There is a subtle difference between imagedata and the content (the "text") of an image. In Scott Rossi's example, he also uses "text" and it works. -- Jacqueline Landman Gay | [EMAIL PROTECTED] HyperActive Software | http://www.hyperactivesw.com ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
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 ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
Hi Scott, This is weird, it doesn't work here. What happens if you set "alwaysBuffer" to true? I don't understand a couple of things about your snippet: set the currentTime of player 1 to (F * the timeScale of player 1) In my case the timeScale is 600, so frame number * timeScale would give values that are way off. I multiple by 24 which is (timeScale / FramesPerSecond = 24). In this case FPS is 25 (I'm hardwiring this at the moment since I can't find out how to get this info from the player). set text of img _display to myVar is there a difference between this and: put myImageData into image "ImageThumbnail" It would be nice to know what "alwaysBuffer" actually does. It could be that there is an old copy of the buffer being used, or RunRev doesn't think the image has changed. Thanks a lot, All the Best Dave On 20 Jun 2007, at 12:41, Scott Rossi wrote: Recently, Dave wrote: 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? Can't tell you why Rev crashes but, for the most part, setting the alwaysBuffer of a player will often degrade playback performance since Rev tries to layer the player's content like an object. I tried a simple test with a MOV file and got what I think are the results you're aiming for. I used the following script in a button with the alwaysBuffer of the player set to false and the controller hidden. on mouseUp repeat with F = 1 to 20 set the currentTime of player 1 to (F * the timeScale of player 1) export snapshot from rect (rect of player 1) of player 1 to myVar as JPEG set text of img _display to myVar wait 30 with messages end repeat end mouseUp On my end (OS X 10.4.9, Rev 2.8.1), the display image updates every half second with each frame captured from the movie. Appeared to work with both JPEG and PNG export. Regards, Scott Rossi Creative Director Tactile Media, Multimedia & Design ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: Player/Image Object "always buffer" Problems
Recently, Dave wrote: > 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? Can't tell you why Rev crashes but, for the most part, setting the alwaysBuffer of a player will often degrade playback performance since Rev tries to layer the player's content like an object. I tried a simple test with a MOV file and got what I think are the results you're aiming for. I used the following script in a button with the alwaysBuffer of the player set to false and the controller hidden. on mouseUp repeat with F = 1 to 20 set the currentTime of player 1 to (F * the timeScale of player 1) export snapshot from rect (rect of player 1) of player 1 to myVar as JPEG set text of img _display to myVar wait 30 with messages end repeat end mouseUp On my end (OS X 10.4.9, Rev 2.8.1), the display image updates every half second with each frame captured from the movie. Appeared to work with both JPEG and PNG export. Regards, Scott Rossi Creative Director Tactile Media, Multimedia & Design ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
