For zstd streams
zstd1.PNG
zstd2.PNG
The version is 1.5.1 or 1.5.2, not 1.5.0
For deflate streams
zstd3.PNG
so... png+reflate and -d1
Code:
-mreflate+png+zstd:l16 -d1
Code:
Streams: 11977/11984
Time: 00:00:16 (00:01:32)
Memory: 215 MB (215 MB)
Results: 256 MB >> 686 MB
Make sure there is no xdelta library, xtool freezes because of what I assume would be false positive streams or very small streams.