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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/lz4_Frame_format.md | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/doc/lz4_Frame_format.md b/doc/lz4_Frame_format.md index a8541f5..a0514e0 100644 --- a/doc/lz4_Frame_format.md +++ b/doc/lz4_Frame_format.md @@ -265,20 +265,23 @@ The highest bit is “1” if data in the block is uncompressed. The highest bit is “0” if data in the block is compressed by LZ4. -All other bits give the size, in bytes, of the following data block -(the size does not include the block checksum if present). +All other bits give the size, in bytes, of the following data block. +The size does not include the block checksum if present. Block Size shall never be larger than Block Maximum Size. -Such a thing could happen for incompressible source data. -In such case, such a data block shall be passed in uncompressed format. +Such a thing could potentially happen for non-compressible sources. +In such a case, such data block shall be passed using uncompressed format. __Data__ Where the actual data to decode stands. It might be compressed or not, depending on previous field indications. -Uncompressed size of Data can be any size, up to “block maximum size”. -Note that data block is not necessarily full : -an arbitrary “flush” may happen anytime. Any block can be “partially filled”. + +When compressed, the data must respect the [LZ4 block format specification](https://github.com/lz4/lz4/blob/master/doc/lz4_Block_format.md). + +Note that the block is not necessarily full. +Uncompressed size of data can be any size, up to "Block Maximum Size”, +so it may contain less data than the maximum block size. __Block checksum__ |