Using code to export SWF frame as image

Hi - I currently deal with a customer who has a large number
of dynamically generated SWF movies. For various purposes they
would like to be able to generate images (for example of the first
frame only) of a SWF on demand, and potentially there would be
multiple concurrent requests to do so. Does anyone know if there is
a component, Dot Net DLL or any other programmatic mechanism for
exporting a single SWF frame to JPG or PNG format, but without
displaying the flash control or other visual interface, and that
supports multiple concurrent calls?

officermcnulty wrote:
> Hi - I currently deal with a customer who has a large
number of dynamically
> generated SWF movies. For various purposes they would
like to be able to
> generate images (for example of the first frame only) of
a SWF on demand, and
> potentially there would be multiple concurrent requests
to do so. Does anyone
> know if there is a component, Dot Net DLL or any other
programmatic mechanism
> for exporting a single SWF frame to JPG or PNG format,
but without displaying
> the flash control or other visual interface, and that
supports multiple
> concurrent calls?
>
Sounds like you need a SWF renderer. Based on the complexity
of your
SWFs, it's no an easy thing to do.
I would look into the various Open Source Flash player
implementations
out-there to use their rendering code. I haven't digged into
this myself
much but it may require a fair bit of coding on your side,
plus be aware
that these open source flash player generally do not support
all
features of Flash.
There is one SWF rendering library here:
Flirt:
http://flirt.sourceforge.net/
And some open source Flash players here:
* gameSWF:
http://tulrich.com/geekstuff/gameswf.html
* Gnash (based on gameSWF):
http://www.gnu.org/software/gnash/
* swfDEC:
http://swfdec.sourceforge.net/
Good luck.
Tim.

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export front document as image sequence using settings "Macintosh HD:Users:grato:Documents:SYNC:Sync Assets:settings:Sync_QTexport_setting.qtes" to "Macintosh HD:Users:grato:Documents:SYNC:Sync Assets:Assets:temp:Sync-"
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I looked online, but couldn't find anything helpful.   I got these codes on the web, but they're not working.... (I'm pretty new to flash).
projectgallery.swf - PARENT SWF
projectgallery_cutLimestone.swf - EXPORT SWF
returnToAlbums_btn_inst - instance of a button on the export swf that I want to be able to click to go to a different frame in the parent SWF
Here are my codes:
on the parent SWF:
import flash.display.MovieClip;
import flash.events.MouseEvent;
var myLoader:Loader = new Loader();
var url:URLRequest = new URLRequest("projectgallery_cutlimestone.swf");
myLoader.load(url);
function loadHandler (event:Event) {
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When I try it, the SWF loads fine, but when it loads, this OUTPUT error appears:
[object Main]
TypeError: Error #1009: Cannot access a property or method of a null object reference.
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          at Main/preload1()
then, when I try to click the button returnToAlbums_btn_inst, this OUTPUT error appears:
ReferenceError: Error #1069: Property play not found on flash.display.SimpleButton and there is no default value.
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Export SWF works without error now, but parent SWF returns:
TypeError: Error #2007: Parameter child must be non-null.
          at flash.display::DisplayObjectContainer/addChild()
          at Main/frame3()
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          at Main/gotoCutLimestone()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Main/preload1()
under OUTPUT when I try to load the SWF. The returnToAlbums_btn_inst doesn't work still either.

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> not accepting the points
It worked on this and on one other thread, but this is still open: How to upload the image
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What could cause "Internal error: java.lang.NullPointerException: can't not add null to SWF frame" when using compc?

using flex sdk 4.6, and air sdk 15.0.0.356
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any ideas?

You could be running out of memory, try increasing the -Xmx512m value to -Xmx1024m or another value that you prefer

Using code to export SWF frame as image

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