反编译查看源码

这种直接拉到android studio或者idea里面就可以直接看到反编译的文本内容。

反编译查看class内容

命令：javap -verbose 类文件名

  1. ❯ ls                                                        [21/09/17|22:13:32]
  2. JniLibLoader.class RTMPJni.class      RTMPX264Jni.class  X264Jni.class
  4. ❯ javap -verbose X264Jni                                    [21/09/17|22:13:33]
  5. 警告: 二进制文件X264Jni包含com.hwilliamgo.livertmp.jni.X264Jni
  6. Classfile /Users/HWilliam/AllProject/AndroidStudioProjects/open-source/fuzzy-video-drill/LiveRtmp/livertmp/build/intermediates/javac/debug/classes/com/hwilliamgo/livertmp/jni/X264Jni.class
  7.   Last modified 2021-9-14; size 611 bytes
  8.   MD5 checksum ab3ec02076fa9768774f2868cac2c845
  9.   Compiled from "X264Jni.java"
  10. public class com.hwilliamgo.livertmp.jni.X264Jni
  11.   minor version: 0
  12.   major version: 51
  13.   flags: ACC_PUBLIC, ACC_SUPER
  14. Constant pool:
  15.    #1 = Methodref          #4.#24         // java/lang/Object."<init>":()V
  16.    #2 = Methodref          #25.#26        // com/hwilliamgo/livertmp/jni/JniLibLoader.loadLibOnce:()V
  17.    #3 = Class              #27            // com/hwilliamgo/livertmp/jni/X264Jni
  18.    #4 = Class              #28            // java/lang/Object
  19.    #5 = Utf8               <init>
  20.    #6 = Utf8               ()V
  21.    #7 = Utf8               Code
  22.    #8 = Utf8               LineNumberTable
  23.    #9 = Utf8               LocalVariableTable
  24.   #10 = Utf8               this
  25.   #11 = Utf8               Lcom/hwilliamgo/livertmp/jni/X264Jni;
  26.   #12 = Utf8               init
  27.   #13 = Utf8               setVideoCodecInfo
  28.   #14 = Utf8               (IIII)V
  29.   #15 = Utf8               encode
  30.   #16 = Utf8               ([B)V
  31.   #17 = Utf8               destroy
  32.   #18 = Utf8               onEncode
  33.   #19 = Utf8               encodeData
  34.   #20 = Utf8               [B
  35.   #21 = Utf8               <clinit>
  36.   #22 = Utf8               SourceFile
  37.   #23 = Utf8               X264Jni.java
  38.   #24 = NameAndType        #5:#6          // "<init>":()V
  39.   #25 = Class              #29            // com/hwilliamgo/livertmp/jni/JniLibLoader
  40.   #26 = NameAndType        #30:#6         // loadLibOnce:()V
  41.   #27 = Utf8               com/hwilliamgo/livertmp/jni/X264Jni
  42.   #28 = Utf8               java/lang/Object
  43.   #29 = Utf8               com/hwilliamgo/livertmp/jni/JniLibLoader
  44.   #30 = Utf8               loadLibOnce
  45. {
  46.   public com.hwilliamgo.livertmp.jni.X264Jni();
  47.     descriptor: ()V
  48.     flags: ACC_PUBLIC
  49.     Code:
  50.       stack=1, locals=1, args_size=1
  51.          0: aload_0
  52.          1: invokespecial #1                  // Method java/lang/Object."<init>":()V
  53.          4: return
  54.       LineNumberTable:
  55.         line 8: 0
  56.       LocalVariableTable:
  57.         Start  Length  Slot  Name   Signature
  58.             0       5     0  this   Lcom/hwilliamgo/livertmp/jni/X264Jni;
  60.   public static native void init();
  61.     descriptor: ()V
  62.     flags: ACC_PUBLIC, ACC_STATIC, ACC_NATIVE
  64.   public static native void setVideoCodecInfo(int, int, int, int);
  65.     descriptor: (IIII)V
  66.     flags: ACC_PUBLIC, ACC_STATIC, ACC_NATIVE
  68.   public static native void encode(byte[]);
  69.     descriptor: ([B)V
  70.     flags: ACC_PUBLIC, ACC_STATIC, ACC_NATIVE
  72.   public static native void destroy();
  73.     descriptor: ()V
  74.     flags: ACC_PUBLIC, ACC_STATIC, ACC_NATIVE
  76.   public static void onEncode(byte[]);
  77.     descriptor: ([B)V
  78.     flags: ACC_PUBLIC, ACC_STATIC
  79.     Code:
  80.       stack=0, locals=1, args_size=1
  81.          0: return
  82.       LineNumberTable:
  83.         line 47: 0
  84.       LocalVariableTable:
  85.         Start  Length  Slot  Name   Signature
  86.             0       1     0 encodeData   [B
  88.   static {};
  89.     descriptor: ()V
  90.     flags: ACC_STATIC
  91.     Code:
  92.       stack=0, locals=0, args_size=0
  93.          0: invokestatic  #2                  // Method com/hwilliamgo/livertmp/jni/JniLibLoader.loadLibOnce:()V
  94.          3: return
  95.       LineNumberTable:
  96.         line 10: 0
  97.         line 11: 3
  98. }
  99. SourceFile: "X264Jni.java"