http://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/zlib-compressbound-1.html In what situation would compressed data be larger than input? https://stackoverflow.com/questions/16992754/in-what-situation-would-compressed-data-be-larger-than-input...
退出前,destLen是实际的compressed buffer长度。如果输入文件是mmap的,这个函数可以一次解压整个文件。如果解压成功返回Z_OK,如果没有足够的内存返回 Z_MEM_ERROR,如果输出缓冲区中没有足够的空间返回Z_BUF_ERROR,如果输入数据有损坏返回Z_DATA_ERROR。在没有足够空间的情况下,uncompress()用解压数据填充输出缓冲区,直...
data = zlib.compress(data, level=zlib.Z_BEST_COMPRESSION) LOGGER.debug('LookupTable (%s): Successfully compressed input data from %d to %d bytes', driver.id, original_size, sys.getsizeof(data) )returndataexceptzlib.error: LOGGER.exception('LookupTable (%s): Data compression error.', driver...
您需要对zip条目使用raw deflate。将window_bits设置为-15。您应该能够处理大于unsigned int最大值的输入...
zlib.compress(data, /, level=- 1, wbits=MAX_WBITS) Compresses the bytes in data, returning a bytes object containing compressed data. level is an integer from 0 to 9 or -1 controlling the level of compression; 1 (Z_BEST_SPEED) is fastest and produces the least compression, 9 (Z_...
That is, this remains b"" until the last byte that contains compression data is available. If the whole bytestring turned out to contain compressed data, this is b"", an empty bytes object.Decompress.unconsumed_tail A bytes object that contains any data that was not consumed by the last ...
This is used to tune the compression algorithm. This value only affects the compression ratio, not the correctness of the compressed output, even if it is not set appropriately. zlib.Z_DEFAULT_STRATEGY Use for normal data. zlib.Z_FILTERED Use for data produced by a filter (or predictor). ...
public static String compress(String data) { try { ByteArrayOutputStream out = new ByteArrayOutputStream(); ZOutputStream zOut = new ZOutputStream(out, JZlib.Z_BEST_COMPRESSION); ObjectOutputStream objOut = new ObjectOutputStream(zOut); ...
// 代码中使用的路径需为应用的沙箱路径,如/data/storage/el2/base/haps,也可以通过context获取 import zlib from '@ohos.zlib'; let inFile = '/xx/xxx.zip'; let outFile = '/xxx'; let options = { level: zlib.CompressLevel.COMPRESS_LEVEL_DEFAULT_COMPRESSION, memLevel: zlib.MemLevel.MEM_...
退出前,destLen是实际的compressed buffer长度。如果输入文件是mmap的,这个函数可以一次解压整个文件。如果解压成功返回Z_OK,如果没有足够的内存返回 Z_MEM_ERROR,如果输出缓冲区中没有足够的空间返回Z_BUF_ERROR,如果输入数据有损坏返回Z_DATA_ERROR。在没有足够空间的情况下,uncompress()用解压数据填充输出缓冲区,...