As we perceive, an alpha channel is the part of an image that describes transparency in graphics processing. In terms of assisting animation and video designers to create interactive websites, helping individuals to enjoy digital experiences and facilitating the transfer of mobile contents, the Alpha Channel plays an essential role. And we can say, whether or not a swf2video conversion software could accomplish the flash alpha effect in the generated video is, in a way, a benchmark for the public to evaluate its cost performance.

Moyea SWF to Video Converter is one of the current tools softwares available that could come up with a smooth solution for customer to realize the Alpha Channel of original flash files perfectly and facilitates individuals to enjoy the ideal and vivid audio & video effect.

The paragraphs to follow are devoted to employing a step-by-step example to demonstrate how to use Moyea SWF to Video Converter to convert the SWF flash files into 32-bit RGBA AVI video files with alpha channel. (Files used in this illustrative application: source SWF file: floating cloud.swf (2 kb); Generated 32-bit RGBA AVI video: floating cloud.avi (3,393 KB))

Launch Moyea SWF to Video Converter.

Then switch the interface into the Single Mode as the following picture illustrates (When you start the program, the Single Mode interface will be displayed by default. What is demonstrated in this example is to convert SWF files into videos in the Single mode. Click on  , the interface shifts into the state of Single Mode while the very button shows  . Of course, the function of converting SWF to AVI video with alpha channel also applies to the Batch Mode.)



Click the  button in the "Input file" field to import your source Flash movie to the program. You can also click the drop-down list  beside to select the path of the source file from Folder, from IE cache or Flash Projector:



Select a source file from the ¡°Import Flash¡± dialog box that pops up after clicking the ¡°Open¡± button:


Click on the ¡°OK¡± button and you can preview the flash immediately:

Clicking on   and you can crop the video by setting the four values of the coordinate as shown in the right section of the below interface. You can also crop the size by dragging the dashed frame with your mouse and adjust the frame to suit your individual need. Or you can click on ¡°Select All¡± to restore the cropped size to the original size of the video. (Please note that larger values will slow down the capture speed.):


Click on   and you start to set the parameters for the export RGBA AVI video file. The four circled areas should attract your attention if you are to generate a high-quality AVI video with alpha channel:


Now, you can proceed to the step of conversion. Click on   and the following ¡°Settings¡± dialogue will pop up with a full-screen interface as the background asking you to set the Conversion ¡°Settings¡± to test the Capture Screen. (One detail that demands your attention is the alternative choice of 16 bits/pixel and 32 bits/pixel methods for capturing frames during the conversion. The 32 bits/pixel method will not cause any video quality loss, but it will use much more of your CPU):


Click on the "Next" button and the program will start testing the capturing:

The Capture-Speed ¡°Settings¡± dialog box pops up after the testing. To get accurate results, please interact with the Settings dialogue when the Flash file asks you to do so. Note that lowering the capture speed can improve the conversion quality:


Click the "Start Capture" button, the first frame of the Flash file will be set as the first frame of the final video file:


And you will face a full-screen window of frame capturing:


Click "Finish" at the bottom of the window if you want to set the current frame as the last frame of the final RGBA AVI video file and the conversion will be started:


The conversion is completed and we have a 32-bit RGBA AVI video file generated from the SWF file.

Now we can progress to experiment on importing the generated 32-bit RGBA AVI video file into the Adobe Premiere Pro for further processing.

Start Adobe Premiere Pro and click ¡°File>Import¡± menu items to import the AVI video file into the video editor program:


Open the newly-generated AVI video file and it will be added into the Adobe Premiere Pro project:


You can preview the result of alpha-channel floating cloud.avi merged successfully with cartoon.avi:


It should be reiterated that during the conversion period with Moyea SWF to Video Converter, lowering the capture speed can improve the conversion quality. The program has provided you with a default choice. If the output quality is not as desirable as expected, you can try again at a lower conversion speed.

Demonstrated above is an example of converting the SWF flash file into the RGBA AVI video file in the Single Mode.

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