The first step of the process is to use software (like VirtualDub) to resize an AVI file to match your output light array size, and then convert the video into a series of BMP files, one per frame. This will create lots of small files! The second step is to use our BMP2SD program to convert the sequence of BMP files into a BIN file that can be used on the Effects Controllers. It is also possible you could extract the audio track from your AVI file and use that in our MP3 player.
First, we assume you have an array of strings with the same number of lights on each one. For example, lets say 100 strings with 50 lights on each. Our example and software also assume the strings are oriented vertically and wired to the controller (DDBs) at the bottom, as you might wire up a simple pole-tree or flat display. So our sample display is 100 pixels wide and 50 pixels high.
Start up VirtualDub. Drag and drop your video file onto VirtualDub to open it up. It will display the first frame of the video. You can use the slider to see more. The left window is the input video, the right window is the output preview. Pick the menu item "Video", then "Filters". Pick "Add..." Select the "resize" filter and click "OK". For Aspect ratio, pick "Disabled". For New Size, pick "absolute (pixels)", and then enter 100 x 50 (or whatever your light array is). Click OK. You can also now pick "Cropping..." from the Filters page and crop the left/right and top/bottom of your video. Click "OK" to exit the Filters menu. You will now see a preview of the new output size to the right of the screen. Right click on the output video, pick Aspect Ratio "1:1" and Preferred Filter "point". You can now drag the bottom right corner of the window to make it larger, and see what each output pixel will look like. Now pick menu "File", "Export", "Image Sequence..." Leave filename blank, pick ".bmp" for filename suffix, minimum digits 4. Create or Select a new empty directory to put the files in. Pick Output Format: WINDOWS BMP. Click "OK". You will now have a directory full of BMP files numbered like this: 0000.bmp, 0001.bmp, etc.
Bring up a Windows command prompt. "CD C:\BMP". Let's say all your BMP files from VirtualDub are in C:\VID. Run BMP2SD, giving it the name of the BMP files directory, the output frame rate of your video, and the number of lights strings attached to each EC (if you have more than one EC you are generating BIN files for). Let's say our video is 30fps (frames per second). Our array is 100 strings, so let's say we have 4 ECs and have 25 strings on each EC. We would say: cmd> bmp2sd.exe c:\bmp 30 25 bmp2sd will read in all the NNNN.bmp files and create an output file for each EC, naming them: 1-0.bin 1-1.bin 1-2.bin 1-3.bin Each file can then be placed onto an SD card and in to the appropriate EC. (1-0 to EC 0, 1-1 to EC1, 1-2 to EC2, 1-3 to EC 3).
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