av/cmd/adpcm/encode-pcm/encode-pcm.go

44 lines
785 B
Go

package main
import (
"flag"
"io/ioutil"
"bitbucket.org/ausocean/av/stream/adpcm"
)
func main() {
var inPath string
var adpcmPath string
flag.StringVar(&inPath, "in", "data.pcm", "file path of input data")
flag.StringVar(&adpcmPath, "out", "encoded.adpcm", "file path of output")
flag.Parse()
//read pcm
pcm, err := ioutil.ReadFile(inPath)
if err != nil {
panic(err)
}
//encode adpcm
var comp []byte
start := 0
bSize := 1010
for i := 0; i < len(pcm); i++ {
if i%bSize == bSize-1 {
block := pcm[start : i+1]
encBlock, err := adpcm.EncodeBlock(block)
if err != nil {
panic(err)
}
comp = append(comp, encBlock...)
start = i + 1
}
}
// save adpcm to file
err = ioutil.WriteFile(adpcmPath, comp, 0644)
if err != nil {
panic(err)
}
}