Golang aac/h264 encoder and decoder
H264 encoding example
w := 400
h := 400
var nal [][]byte
c, _ := codec.NewH264Encoder(w, h, image.YCbCrSubsampleRatio420)
nal = append(nal, c.Header)
for i := 0; i < 60; i++ {
img := image.NewYCbCr(image.Rect(0,0,w,h), image.YCbCrSubsampleRatio420)
p, _ := c.Encode(img)
if len(p.Data) > 0 {
nal = append(nal, p.Data)
}
}
for {
// flush encoder
p, err := c.Encode(nil)
if err != nil {
break
}
nal = append(nal, p.Data)
}
H264 decoding example
dec, err := codec.NewH264Decoder(nal[0])
for i, n := range nal[1:] {
img, err := dec.Decode(n)
if err == nil {
fp, _ := os.Create(fmt.Sprintf("/tmp/dec-%d.jpg", i))
jpeg.Encode(fp, img, nil)
fp.Close()
}
}
AAC encoding example
var pkts [][]byte
c, _ := codec.NewAACEncoder()
pkts = append(pkts, c.Header)
for i := 0; i < 60; i++ {
var sample [8192]byte
p, _ := c.Encode(sample)
if len(p) > 0 {
pkts = append(pkts, p)
}
}
AAC decoding example
dec, _ := codec.NewAACDecoder(pkts[0])
for _, p := range pkts[1:] {
sample, err := dec.Decode(p)
}