XTool 2020 (Main Project)

[Razor12911]

Update available

Changes

- added png stream preprocessor
- removed grittibanzli codec (since nobody uses it)

Notes

Xtool is able to process deflate/zlib streams and png images do contain these streams however, they are split up into several blocks which at times does prevent the program from being able to process them. The png stream preprocessor's job is to concatenate (rejoin all these blocks into a single stream) which can then be processed by xtool, so if you know your input contains these images then it's best to include -mpng into the method chain and use -d1 to first preprocess the streams then process them using zlib, reflate or preflate (preflate is the preferred method to use).

Results

without png preprocessor:

Compressed 1 file, 7,232,549 => 8,291,632 bytes. Ratio 114.64% -mreflate
Compressed 1 file, 7,232,549 => 7,232,655 bytes. Ratio 100.00% -mpreflate

with png preprocessor:

Compressed 1 file, 7,232,549 => 26,075,119 bytes. Ratio 360.52% -mpng+reflate -d1
Compressed 1 file, 7,232,549 => 25,289,529 bytes. Ratio 349.66% -mpng+preflate -d1