public static extern int init_put_byte(ref ByteIOContext s, [In, Out]byte[] buffer, int buffer_size, int write_flag, IntPtr opaque, ReadPacketCallback read_packet, WritePacketCallback write_packet, SeekCallback seek);
public static extern int init_put_byte(ref ByteIOContext s, [In, Out] byte[] buffer, int buffer_size, int write_flag, IntPtr opaque, ReadPacketCallback read_packet, WritePacketCallback write_packet, SeekCallback seek);