RE: jpeg and zlib libraries
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From: Bob F. <bfr...@si...> - 2008-04-11 20:23:48
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On Fri, 11 Apr 2008, DRC wrote: > be an option. The modifications involve giving libjpeg the ability to > compress RGB, BGR, RGBA, BGRA, ABGR, and ABGR pixel formats directly, which > eliminates the need to first convert the virtual framebuffer pixels into RGB > prior to compression. Have you measured to see what the actual benefits of this are? I suspect that the actual benefit is much lower than you expect. However setting jpeg_info.optimize_coding to False (don't request Huffman optimization) is likely to obtain a definite performance boost (but with less compression). Bob ====================================== Bob Friesenhahn bfr...@si..., http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ |