Lagarith is a lossless video codec intended for editing and archiving. Lagarith offers better compression than codecs like Huffyuv, Alparysoft, and CorePNG. There are a few lossless codecs that can compress better than Lagarith, such as MSU and FFV1; however Lagarith tends to be faster than these codecs. Lagarith is able to operate in several colorspaces - RGB24, RGB32, RGBA, YUY2, and YV12. For DVD video, the compression is typically only 10-30% better than Huffyuv. However, for high static scenes or highly compressible scenes, Lagarith significantly outperforms Huffyuv. A comparison for various types of video can be found here. Lagarith is able to outperform Huffyuv due to the fact that it uses a much better compression method.
Fixed an issue where decoding YUY2 video with multithreading could cause the chroma to be corrupted. Thanks to Vern Dias for reporting this and providing sample video. Tweaked multithreading compression so that the main thread copies the compressed data to the output buffer as soon as one thread finishes rather than wait for both. Changed the install.bat file to change drive letter too if needed when changing directories, thanks to Jens Diemer for suggesting this.
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