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HOW TO . . . PREPARE NEW BACKGROUND IMAGE
for TronicsBinMod_GUI_1_7, v1a
(Rev. 1-5-09)
INTRODUCTION
The Background Image in the PUFF 1.0.1 Pansat 2500 STB can be changed using the
TronicsBinMod_GUI_1_7 program. However, the desired new image has to be preconditioned and
converted to MPEG-1 format first before it can be loaded into the boot section of the ref. STB. Preconditioning and conversion of the desired new image consists of the following basic steps:
1. Save the desired new background image in your PC.
2. Using the WINDOWS mspaint program, precondition the desired new image by scaling it down (or up) to approximately 448 x 336 pixels or a 4:3 aspect ratio, and by limiting the resulting size to less than or equal to 21,760 bytes. Note: For a better looking background image, limit image file size to much less than the maximum 21.76 kb.
3. Save the preconditioned image in your PC.
4. Using the TMPGEnc program, convert the preconditioned image to MPEG-1 format.
5. Save the MPEG-1 image in your PC for installing in your receiver as the new background image.
PROCEDURE
1. Save the desired new background image in your PC.
2. Go to the C:\WINDOWS\SYSTEM 32\ mspaint directory and open the mspaint program.
3. Click “File,” then click “Open.” The “Open” dialog box appears.
4. Locate the desired new background image saved in step 1 and select it.
5. Click “Open.” The desired new background image is now opened in the mspaint window.
6. Click “Image,” then click “Attributes.” The “Attributes” dialog box appears.
7. Note the image “Size on disk.” As an example, a sample image has the following characteristics: Size on disk = 49,784 bytes; Width = 632 pixels; Height = 422 pixels.
a. Click “Default,” then click “Ok.” The values for “Width” and “Height” will change to a
default ratio of 4:3, but the “Size on disk” value will not change from the original value. In the example above, the new “Width” x “Height” values become 512 x 384 pixels.
b. Click “File,” then “Save As” and save the adjusted image with a temporary name, e.g.,
newbgimagetemp.
c. Click “Image” again, then click “Attributes.” The “Attributes” dialog box reappears with an
adjusted value for “Size on disk.” If the size is less than 21,760 bytes, skip step 7-d thru step 9, click “Cancel” and go to step 10.
d. If the size is still larger than 21,760 bytes, continue with step 8. In the example above, it has become 32,516 bytes which is still larger than the 21,760 bytes maximum.
8. Record the image “Size on disk,” the “Width” (in pixels) and the “Height” (in pixels). Then, click “Cancel.”
a. Estimate a reduction in the width, which with a corresponding reduction in height to equal a 4:3 ratio, will reduce the image size to less than 21,760 bytes. In the foregoing example, estimate a 39% width reduction, or width = 512 x 61% = 312.3 or 312 pixels. Compute the corresponding height reduction to equal 4:3. In the foregoing example, height = (312 x 3)/4 = 234 pixels.
b. Divide this new width and height by 8. Record only the whole number part of each quotient. For example, 312/8 = 39; 234/8 = 29.25 or 29.
c. Multiply by 8 the quotient whole number parts obtained in step 8-b. For example,
width = 8 x 39 = 312; height = 8 x 29 = 232.
d. Compute the per cent ratio of the products obtained in step 8-c to the default values obtained in step 7-a, rounding up fractional ratios. For example, width ratio = (312/512) x 100% = 60.9% or 61%; and, height ratio = (232/384) x 100% = 60.4% or 60%.
9. Click “Image” again, then click “Stretch and Skew . . .” The “Stretch and Skew” dialog box appears.
a. In the “Stretch” box, enter in the “Horizontal” and “Vertical” boxes the corresponding width and height percent values computed in step 8-d. Then, click “Ok.”
b. Click “Image” again, then click “Attributes” again. The “Attributes” dialog box reappears. Modify the values in the “Width” and “Height” boxes with the even multiples of 8 that were calculated in step 8-c. Then click “Ok.”
c. Click “File,” then “Save.”
d. Click “Image” again, then click “Attributes.” The “Attributes” dialog box reappears with an
adjusted value for “Size on disk.” If it is still larger than 21, 60 bytes, repeat step 8 until the “Size on disk” is less than 21,760 bytes.
e. If it is less than 21,760 bytes, click “Cancel,” then continue with step 10 below. In the example above, it has become 18,676 bytes; therefore, continue with step 10.
10. Click “File,” then click “Save As.” Save with a new name, preferably with the pixel dimensions included in the name, e.g., newbgimage_312x232. This is the preconditioned version of the desired new background image. This preconditioned version will now be converted to MPEG-1 format, starting with step 11 below.
11. Exit mspaint.
12. Go to
http://www.tmpgence.net/en/download.html and download/save/unzip the free copy of the TMPGEnc version 2.525 program.
13. Double click the TMPGEnc MPEG Encoder. The “Project Wizard” dialog box appears.
a. Click “Cancel.” The “Language pack installation” dialog box appears.
b. Click “Cancel.” The TEMPGEnc dialog box appears.
c. Click “Browse” beside the “Video Source” box. The “Open” dialog box appears.
d. Select the preconditioned new background image file saved in step 10, e.g., newbgimage_312x232. Then, click “Open.” The preconditioned new background image file appears in the dialog box.
e. Click “Browse” beside the “Output file name box.” The “Open” dialog box appears.
f. Select the location where you want to save the converted image file. Verify that the file name is the same one assigned in step 10.
(1) If the file name is same as the one assigned in step 10: click “Open,” then click “Save.”
(2) If the file name is not the same as the one assigned in step 10, or if you wish to change
the file name: click “Open,” enter the new file name in the “File name” box. Then,
click “Save.”
g. Click the “Start” button at the top left corner of the window. The program will start converting.
14. At completion of conversion, exit the program. The converted file with the suffix, .m1v will be installed in the output directory you specified in step 13f.