| | |
| | | package util |
| | | |
| | | import ( |
| | | "fmt" |
| | | |
| | | "basic.com/valib/deliver.git" |
| | | |
| | | "basic.com/pubsub/protomsg.git" |
| | | |
| | | "github.com/pierrec/lz4" |
| | | ) |
| | | |
| | | const ( |
| | |
| | | |
| | | // UnCompress uncompress |
| | | func UnCompress(in []byte) ([]byte, error) { |
| | | out := make([]byte, 10*len(in)) |
| | | n, err := lz4.UncompressBlock(in, out) |
| | | if err != nil { |
| | | fmt.Println(err) |
| | | return nil, err |
| | | } |
| | | out = out[:n] // uncompressed data |
| | | return out, nil |
| | | return in,nil |
| | | //out := make([]byte, 10*len(in)) |
| | | //n, err := lz4.UncompressBlock(in, out) |
| | | //if err != nil { |
| | | // fmt.Println(err) |
| | | // return nil, err |
| | | //} |
| | | //out = out[:n] // uncompressed data |
| | | //return out, nil |
| | | } |
| | | |
| | | // Compress compress |
| | | func Compress(in []byte) ([]byte, error) { |
| | | out := make([]byte, len(in)) |
| | | ht := make([]int, 64<<10) // buffer for the compression table |
| | | n, err := lz4.CompressBlock(in, out, ht) |
| | | if err != nil { |
| | | fmt.Println(err) |
| | | return nil, err |
| | | } |
| | | if n >= len(in) { |
| | | fmt.Println("image is not compressible") |
| | | } |
| | | out = out[:n] // compressed data |
| | | return out, nil |
| | | return in,nil |
| | | //out := make([]byte, len(in)) |
| | | //ht := make([]int, 64<<10) // buffer for the compression table |
| | | //n, err := lz4.CompressBlock(in, out, ht) |
| | | //if err != nil { |
| | | // fmt.Println(err) |
| | | // return nil, err |
| | | //} |
| | | //if n >= len(in) { |
| | | // fmt.Println("image is not compressible") |
| | | //} |
| | | //out = out[:n] // compressed data |
| | | //return out, nil |
| | | } |