updated: February 4, 2011
A sync flush is an action performed by zlib to compress new or additional data. A sync flush formats new data by the zlib standard of compression and is the primary method for flushing data used with zlib.
ZlibZlib is a free software library used to compress large amounts of computer data. Based on the DEFLATE compression standard, files compressed with zlib are compatible across multiple operating systems.Sync FlushA sync flush is implemented by zlib when the "Z_SYNC_FLUSH" command is invoked. The two main tasks performed are the compression of all buffered non-compressed data and an update to the type 0 block. The type 0 block contains header and file information on the compressed data.PurposeZlib is used to save valuable space on computer hard disks. By using the sync flush function, large amounts of files may be stored together as one and distributed to other computers more easily. Prior to the initialization of the compression, users may specify the exact details of the compression output. avi to mp4 converter