类:ZstdOptions
¥Class: ZstdOptions
¥Stability: 1 - Experimental
每个基于 Zstd 的类都采用一个 options 对象。所有选项都是可选的。
¥Each Zstd-based class takes an options object. All options are optional.
-
flush<integer> 默认值:zlib.constants.ZSTD_e_continue¥
flush<integer> Default:zlib.constants.ZSTD_e_continue -
finishFlush<integer> 默认值:zlib.constants.ZSTD_e_end¥
finishFlush<integer> Default:zlib.constants.ZSTD_e_end -
chunkSize<integer> 默认值:16 * 1024¥
chunkSize<integer> Default:16 * 1024 -
params<Object> 包含索引 Zstd 参数 的键值对象。¥
params<Object> Key-value object containing indexed Zstd parameters. -
maxOutputLength<integer> 使用 方便的方法 时限制输出大小。默认值:buffer.kMaxLength¥
maxOutputLength<integer> Limits output size when using convenience methods. Default:buffer.kMaxLength -
info<boolean> 如果是true,则返回一个包含buffer和engine的对象。默认值:false¥
info<boolean> Iftrue, returns an object withbufferandengine. Default:false -
dictionary<Buffer> 可选字典,用于在压缩或解压与字典共享常见模式的数据时提高压缩效率。¥
dictionary<Buffer> Optional dictionary used to improve compression efficiency when compressing or decompressing data that shares common patterns with the dictionary.
例如:
¥For example:
const stream = zlib.createZstdCompress({
chunkSize: 32 * 1024,
params: {
[zlib.constants.ZSTD_c_compressionLevel]: 10,
[zlib.constants.ZSTD_c_checksumFlag]: 1,
},
});