1.修改文件&log存储路径

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.autulin.gb28181_android">
 
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/com/example/autulin/gb28181_android/DemoActivity.java

 package com.example.autulin.gb28181_android;
 
+import android.Manifest;
+import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
@@ -30,6 +32,8 @@ public class DemoActivity extends AppCompatActivity implements
         super.onCreate(savedInstanceState);
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); // 防止锁屏
         setContentView(R.layout.activity_demo);
+        ActivityCompat.requestPermissions(this,
+                new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},1);
         initData();
         initView();
 
@@ -49,7 +53,8 @@ public class DemoActivity extends AppCompatActivity implements
             }
         });
         try {
-            Runtime.getRuntime().exec("logcat -f /sdcard/DCIM/pstest/log.txt");
+            Log.e("log", "path: "+MediaRecorderBase.getLogOutPutPath());
+            Runtime.getRuntime().exec("logcat -f " + MediaRecorderBase.getLogOutPutPath());
         } catch (IOException e) {
             e.printStackTrace();
         }

gb28181library/CMakeLists.txt

@@ -11,13 +11,13 @@ cmake_minimum_required(VERSION 3.4.1)
 # Gradle automatically packages shared libraries with your APK.
 
 add_library( # Sets the name of the library.
-             native-lib
+             gb_native
 
              # Sets the library as a shared library.
              SHARED
 
              # Provides a relative path to your source file(s).
-             src/main/cpp/native-lib.cpp
+             src/main/cpp/gb_native.cpp
 
               src/main/cpp/gb28181_muxer.cpp
               src/main/cpp/gb28181_sender.cpp
@@ -165,7 +165,7 @@ find_library( # Sets the name of the path variable.
 # build script, prebuilt third-party libraries, or system libraries.
 
 target_link_libraries( # Specifies the target library.
-                       native-lib
+                       gb_native
                       avcodec
                       avfilter
                       avformat

gb28181library/src/main/java/com/autulin/gb28181library/JNIBridge.java

@@ -3,7 +3,7 @@ package com.autulin.gb28181library;
 public class JNIBridge {
     // Used to load the 'native-lib' library on application startup.
     static {
-        System.loadLibrary("native-lib");
+        System.loadLibrary("gb_native");
     }
 
     public final static int ROTATE_0_CROP_LF=0;

gb28181library/src/main/java/com/autulin/gb28181library/MediaRecorderBase.java

@@ -724,7 +724,7 @@ public abstract class MediaRecorderBase implements Callback, PreviewCallback, IM
 
     public MediaOutput setFileOutPut(String fileName) {
         File dcim = Environment
-                .getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
+                .getExternalStorageDirectory();
         String path;
         if (DeviceUtils.isZte()) {
             if (dcim.exists()) {
@@ -744,4 +744,10 @@ public abstract class MediaRecorderBase implements Callback, PreviewCallback, IM
         mediaOutput = new MediaOutput("", 0, path, fileName, JNIBridge.FILE, 0);
         return mediaOutput;
     }
+
+    public static String getLogOutPutPath() {
+        File path = Environment
+                .getExternalStorageDirectory();
+        return path+FILE_DIR_DEFAULT+"/mux.log";
+    }
 }