语音压缩器配置：8位Network.NodeID转4段冒号格式的转换规则咨询

Got it, let's figure out this conversion step by step. First, let's lay out all your known NodeID ↔ converted value pairs clearly:

• Network.NodeID 33716246 → 2:2:120:22
• Network.NodeID 13716256 → 0:209:75:32
• Network.NodeID 33716156 → 2:2:119:188
• Network.NodeID 33716296 → 2:2:120:72

The Pattern Uncovered #

Let's convert each decimal NodeID to its 32-bit hexadecimal representation, split into 4 byte-sized chunks, then convert back to decimal—here's how it lines up:

1. For 33716246 (decimal):

   • Hexadecimal: 0x02027816
   • Split into big-endian bytes: 02, 02, 78, 16
   • Decimal conversion: 2, 2, 120, 22 → matches the given result exactly.

2. For 13716256 (decimal):

   • Hexadecimal: 0x00D14B20
   • Split into bytes: 00, D1, 4B, 20
   • Decimal conversion: 0, 209, 75, 32 → perfect match.

3. For 33716156 (decimal):

   • Hexadecimal: 0x020277BC
   • Split into bytes: 02, 02, 77, BC
   • Decimal conversion: 2, 2, 119, 188 → spot on.

4. For 33716296 (decimal):

   • Hexadecimal: 0x02027848
   • Split into bytes: 02, 02, 78, 48
   • Decimal conversion: 2, 2, 120, 72 → 100% correct.

Formal Conversion Rule #

1. Forward Conversion (NodeID → w:x:y:z):

   • Treat the decimal Network.NodeID as a 32-bit unsigned integer.
   • Convert it to an 8-character hexadecimal string (pad with leading zeros if necessary to hit 8 characters).
   • Split the hex string into 4 consecutive 2-character segments (big-endian order: first segment = most significant byte).
   • Convert each 2-character hex segment to its decimal equivalent.
   • Join the four decimal values with colons (:) to get the final result.

2. Reverse Conversion (w:x:y:z → NodeID):

   • Convert each of the four decimal values (w, x, y, z) to a 2-character hex string (pad with leading zeros if needed).
   • Concatenate the four hex strings in order (w_hex + x_hex + y_hex + z_hex).
   • Convert the resulting 8-character hex string back to a decimal integer—this is your target Network.NodeID.

内容的提问来源于stack exchange，提问作者phifer2088