memcpy( frame + 6, p_sys->p_buffer, i_kept_bytes );
memcpy( frame + 6 + i_kept_bytes, p_aout_buf->p_buffer + i_bytes_consumed, i_consume_bytes );
memcpy( frame + 6, p_sys->p_buffer, i_kept_bytes );
memcpy( frame + 6 + i_kept_bytes, p_aout_buf->p_buffer + i_bytes_consumed, i_consume_bytes );