From 7e38a912d49dda133e2fc4c9cbc70bfec856fd2d Mon Sep 17 00:00:00 2001
From: thesai <1021828630@qq.com>
Date: Wed, 24 Jul 2024 18:27:41 +0800
Subject: [PATCH] =?UTF-8?q?[=E4=BF=AE=E6=94=B9]crc32=E6=A0=A1=E9=AA=8C?=
 =?UTF-8?q?=E9=80=BB=E8=BE=91?=
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---
 third_party/message/rssp_code.go | 40 ++++++++++++++++----------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/third_party/message/rssp_code.go b/third_party/message/rssp_code.go
index 466cdd5..877f8e6 100644
--- a/third_party/message/rssp_code.go
+++ b/third_party/message/rssp_code.go
@@ -8,9 +8,9 @@ var (
 	// crc16多项式为G(x)=X16+X11+X4+1
 	RSSP_I_CRC16 = crc.NewHash(&crc.Parameters{Width: 16, Polynomial: 0x0811, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
 	// 通道1 crc32多项式为0x100d4e63
-	RSSP_I_C1_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x100d4e63, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
+	RSSP_I_C1_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x100d4e63, Init: 0x0, ReflectIn: false, ReflectOut: true, FinalXor: 0x0})
 	// 通道2 crc32多项式为0x8ce56011
-	RSSP_I_C2_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x8ce56011, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
+	RSSP_I_C2_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x8ce56011, Init: 0x0, ReflectIn: false, ReflectOut: true, FinalXor: 0x0})
 )
 
 // Rssp_I_Crc16计算
@@ -20,27 +20,27 @@ func Rssp_I_Crc16(data []byte) uint16 {
 
 // 通道1的crc32
 func Rssp_I_Crc32C1(data []byte) uint32 {
-	newData := reverseBitsInByte(data)
-	return uint32(RSSP_I_C1_CRC32.CalculateCRC(newData))
+	//newData := reverseBitsInByte(data)
+	return uint32(RSSP_I_C1_CRC32.CalculateCRC(data))
 }
 
 // 通道2的crc32
 func Rssp_I_Crc32C2(data []byte) uint32 {
-	newData := reverseBitsInByte(data)
-	return uint32(RSSP_I_C2_CRC32.CalculateCRC(newData))
+	//newData := reverseBitsInByte(data)
+	return uint32(RSSP_I_C2_CRC32.CalculateCRC(data))
 }
 
-func reverseBitsInByte(data []byte) []byte {
-	var result byte
-	newData := make([]byte, len(data))
-	for i, b := range data {
-		result = 0
-		for i := 0; i < 8; i++ {
-			result <<= 1
-			result |= b & 1
-			b >>= 1
-		}
-		newData[i] = result
-	}
-	return newData
-}
+//func reverseBitsInByte(data []byte) []byte {
+//	var result byte
+//	newData := make([]byte, len(data))
+//	for i, b := range data {
+//		result = 0
+//		for i := 0; i < 8; i++ {
+//			result <<= 1
+//			result |= b & 1
+//			b >>= 1
+//		}
+//		newData[i] = result
+//	}
+//	return newData
+//}