Other applications, such as video encoding, are lengthy operations that are best run "batch" style, where you start a job and leave it running while you go do something else.
They are similar to a simple run-length encoding of data, though there are some differences.
倒排表和按出现长度进行的简单数据编码相似，但也有所不同。
3
The run length encoding (RLE) compression algorithm requires very little processor time and works well for data that has lots of the same byte value repeated in consecutive locations.