/2014/06/21/Win32--Revisited---Creating-an-AVI-from-a-GIF-that-works-with-ANIMATE_CLASS/

{"item":{"status":"visible","url":"\/2014\/06\/21\/Win32--Revisited---Creating-an-AVI-from-a-GIF-that-works-with-ANIMATE_CLASS\/","trash":"","name":"Win32--Revisited---Creating-an-AVI-from-a-GIF-that-works-with-ANIMATE_CLASS","parent":"","title":"Win32: Revisited - Creating an AVI from a GIF that works with ANIMATE_CLASS","date":"2014-06-21 02:06:05","filepath":"posts\/20140621_Win32--Revisited---Creating-an-AVI-from-a-GIF-that-works-with-ANIMATE_CLASS.xml.json","type":"post","content":"<p><img style=\"margin-left: 10px; margin-right: 10px; float: left;\" src=\"http:\/\/www.8bitrobot.com\/media\/uploads\/2012\/01\/gear.png\" alt=\"\" width=\"60\" height=\"64\" \/><\/p>\n<p>An earlier post (<a href=\"http:\/\/www.8bitrobot.com\/2014\/05\/24\/Win32--Creating-an-AVI-for-ANIMATE_CLASS\/\">Creating an AVI for ANIMATE_CLASS<\/a>) described how to create an AVI that will work with the ANIMATE_CLASS common control. &nbsp;However, there are still some particulars that need to be ironed out for the AVI creation and play to be successful... especially when attempting to create an AVI from a GIF animated image.<\/p>\n<p>Most of the issues center around bit depth and global palettes during the conversion. &nbsp;But, instead of explaining all this, I'll just give the basic steps used to create the AVI:<\/p>\n<ol>\n<li>Download <a href=\"http:\/\/www.imagemagick.org\/\">ImageMagick<\/a><\/li>\n<li>At the command prompt use IM to create a series of frames with the proper encoding<\/li>\n<ul>\n<li>convert -append spin.gif all.gif<\/li>\n<li>convert all.gif -unique-colors -depth 8 map.gif<\/li>\n<li>convert -coalesce spin.gif BMP2:frame_%05d.bmp<\/li>\n<li>mogrify -define bmp:format=bmp2 +matte -remap map.gif -colors 256 *.bmp<\/li>\n<\/ul>\n<li>Download <a href=\"http:\/\/makeavi.sourceforge.net\/\">MakeAVI<\/a><\/li>\n<li>Add the frame files (frame_00000.bmp)<\/li>\n<li>Select the fps and press Begin<\/li>\n<li>Choose a save name<\/li>\n<li>Choose the \"Microsoft RLE\" compressor with quality set to 100<\/li>\n<li>Press OK and verify the AVI can be played in Media Player<\/li>\n<\/ol>\n<div>Also, keep in mind some colors may cause problems with transparency. So, be sure to remove ACS_TRANSPARENT from the window style if you don't want transparency.<\/div>\n<div>Here is a <a href=\"http:\/\/code.msdn.microsoft.com\/windowsdesktop\/CppWindowsCommonControls-9ea0de64\/sourcecode?fileId=21600&amp;pathId=788479441\">Microsoft sample<\/a> for creating an AVI animation window (note: it uses ACS_TRANSPARENT).<\/div>"}}
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