support -drop in jpegtran #343
Comments
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This looks like an extension from the "v9" fork of libjpeg. I'd prefer to keep MozJPEG as close as possible to libjpeg-turbo, so try getting the change into libjpeg-turbo. |
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It looks like it has been proposed to libjpeg-turbo, and refused in libjpeg-turbo/libjpeg-turbo#71. Does that mean it has no chance of being integrated in mozjpeg ? That would be a pitty, because I think it is so only piece of code that allows joining jpeg files losslessly, and it's old and unmaintained. |
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If libjpeg-turbo doesn't want it, then I'd rather not add it either. Adding it to MozJPEG wouldn't change anything about it being old and unmaintained. MozJPEG would be worse off for having more old and unmaintained code. |
kornelski
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Feb 26, 2021
This commit modifies the behavior of the block smoothing algorithm in the libjpeg API library so that, if a scan in a multi-scan JPEG image is incomplete (due to premature termination of the image stream), the block smoothing parameters from the previous (complete) scan are used to smooth any iMCU rows that the incomplete scan does not contain. Closes #343
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The original jpegtran has a nice
-dropoption that allows joining two jpeg files together losslessly:https://jpegclub.org/jpegtran/
Would it be in the scope of this project to implement the same in mozjpeg ?
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