Export problems multiple movieclips to image sequence

Question

For our customer we made several flash animations. My output has to be image sequences for Cinemascope format. The export function in Flash for image sequences does not work! All my images are the same frame. This is frame 0 on the timeline. So the embedded movieclips wont playback.
When exporting a Quicktime movie, some frames are skipped and missing in the output! So the export options in Flash are totally not working for my situation. We bought an application SWF to image but also here are some frames missing in the export. I can not relay on Flash and this application.
The project is built like this: we made several movieclips and scaled them and put them in position. Then we made one new movieclip with all the earlier made movieclips inside. Then scaled the entire movieclip to the Cinemascope stage size.
Are we using Flash in a wrong way here?
Why does the exports functions don't work on my project? (built in movieclips won't play, quicktime mov skips images)
How can i solve this problem?
Thanks in advance,
Greetings Henk

Answer 1

Ok this is workaround but should in principle do what you want:
//create an instance of library object
var mylibrary = fl.getDocumentDOM().library;
var doc = fl.getDocumentDOM();
var tl = fl.getDocumentDOM().getTimeline();
//get items in library in an Array
itemArray = mylibrary.items;
totalCount = itemArray.length;
for(var i=0;i<totalCount;i++){
    myItem = itemArray[i];
    myItemType = myItem.itemType;
    myItemName = myItem.name;
    mylibrary.editItem(myItemName);
    fcNum = tl.layers[0].frameCount;
    for (f=0; f<fcNum;f++){
            tl.setSelectedFrames(f, f)
            framenum = f + 1;
            //select your destination, on MAC use something like file:///Macintosh HD/Users/username/Desktop/
            doc.exportPNG("file:///C|/test/"+myItemName+ "_" + framenum +".png", true, true);
1: open the fla file you want to convert to a movie and create a backup
2: Create a new Flash Javascript file and insert the code above, Make sure you have enough hard disk space in your destination folder
3: Press the play button and Flash will automatically parse through all items frame by frame in your library and save the images as png
4: Take a break as it might take a long time