func (vc *VideoChat) Write(b []byte) (int, error) {
vc.sn++
b = append(b[:0], 0xa1, 0x08)
b = serial.IntToBytes(vc.sn, b)
b = append(b, 0x10, 0x11, 0x18, 0x30, 0x22, 0x30)
return 13, nil
}
func ChunkKeyGenerator(iv []byte) func() []byte {
chunkId := 0
return func() []byte {
newKey := make([]byte, 0, len(iv)+4)
newKey = append(newKey, iv...)
newKey = serial.IntToBytes(chunkId, newKey)
chunkId++
return newKey
}
}