v4l2_buf_to_bufref 307 libavcodec/v4l2_buffers.c ret = v4l2_buf_to_bufref(avbuf, i, &frame->buf[i]); v4l2_buf_to_bufref 458 libavcodec/v4l2_buffers.c ret = v4l2_buf_to_bufref(avbuf, 0, &pkt->buf);