The PNGAVI Mixer allows you to combine an AVI file with a transparent PNG picture. The mixing functions and stream reading is much faster
than the old AVI Mixer and this version supports copying of the audio stream.
Microsoft Visual Studio 2003 provides us with the CImage class which is an easy way to load and use PNG images. The application is now built with VS2003.
In this example a 13 second 320*240 uncompressed AVI BBC2 ident was mixed with a transparent png logo.
Open main AVI - displays a file selector to load the AVI,
Open top PNG - displays a file selector to load the top layer PNG,
Mix - displays the output file selector and AVI compression codec dialog then starts mixing,
Stop - stops mixing.
When Stop selected the output AVI is closed and should be able to be viewed upto the last frame that was being processed,
Exit - exits the program.
If AVI Mixer is closed during mixing it will ask the user if they really want to exit. The output AVI will be closed cleanly to include the last frame being processed.
0.10 - OnClose check added, icon updated,
0.9 - Stop function corrected for audio,
0.8 - Optimised memory use in audio stream copying added,
0.7 - First version with audio, deleteobject(ev)->closehandle(ev) bug fix,
0.6 - Frame buffer memory use optimised,
0.5 - atlmincrt added for release builds,
0.4 - Code review - code no longer required removed,
0.3 - AVIMixer code added, CImage use added,
0.2 - Menus, options, controls added,
0.1 - New Visual Studio 2003 project created.
Version 1 was trying to build this functionality into the old AVIMixer, which didn't really work well.
A new project from the ground up with VS2003 was easier.
These are enhancements that we will add when we have the time. We have additional features planned!
If any commercial companies are interested in this project then please contact me via
the email address on the download page.
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