LZMA_PRESET_LEVEL_MASK 19 src/liblzma/lzma/lzma_encoder_presets.c const uint32_t level = preset & LZMA_PRESET_LEVEL_MASK; LZMA_PRESET_LEVEL_MASK 20 src/liblzma/lzma/lzma_encoder_presets.c const uint32_t flags = preset & ~LZMA_PRESET_LEVEL_MASK;