use ffprobe to parse media format

use ffprobe to parse media format

app/src/main/AndroidManifest.xml

@@ -51,7 +51,9 @@
         <!--视频播放拖动预览-->
         <activity android:name=".activity.VideoPreviewActivity"
             android:screenOrientation="portrait" />
-
+        <!--检测多媒体格式数据-->
+        <activity android:name=".activity.ProbeFormatActivity"
+            android:screenOrientation="portrait" />
     </application>
 
 </manifest>

app/src/main/java/com/frank/ffmpeg/activity/MainActivity.java

@@ -29,7 +29,8 @@ public class MainActivity extends BaseActivity {
                 R.id.btn_push,
                 R.id.btn_live,
                 R.id.btn_filter,
-                R.id.btn_preview
+                R.id.btn_preview,
+                R.id.btn_probe
         );
     }
 
@@ -61,6 +62,9 @@ public class MainActivity extends BaseActivity {
             case R.id.btn_preview://视频拖动实时预览
                 intent.setClass(MainActivity.this, VideoPreviewActivity.class);
                 break;
+            case R.id.btn_probe://解析音视频多媒体格式
+                intent.setClass(MainActivity.this, ProbeFormatActivity.class);
+                break;
             default:
                 break;
         }

app/src/main/java/com/frank/ffmpeg/activity/ProbeFormatActivity.java

@@ -0,0 +1,107 @@
+package com.frank.ffmpeg.activity;
+
+import android.annotation.SuppressLint;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.frank.ffmpeg.R;
+import com.frank.ffmpeg.handler.FFmpegHandler;
+
+import com.frank.ffmpeg.util.FFmpegUtil;
+import com.frank.ffmpeg.util.FileUtil;
+
+import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_BEGIN;
+import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_FINISH;
+
+/**
+ * Using ffprobe to parse media format data
+ * Created by frank on 2020/1/7.
+ */
+
+public class ProbeFormatActivity extends BaseActivity {
+
+    private TextView txtProbeFormat;
+    private ProgressBar progressProbe;
+    private RelativeLayout layoutProbe;
+    private FFmpegHandler ffmpegHandler;
+
+    @SuppressLint("HandlerLeak")
+    private Handler mHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            super.handleMessage(msg);
+            switch (msg.what) {
+                case MSG_BEGIN:
+                    progressProbe.setVisibility(View.VISIBLE);
+                    layoutProbe.setVisibility(View.GONE);
+                    break;
+                case MSG_FINISH:
+                    progressProbe.setVisibility(View.GONE);
+                    layoutProbe.setVisibility(View.VISIBLE);
+                    break;
+                default:
+                    break;
+            }
+        }
+    };
+
+    @Override
+    int getLayoutId() {
+        return R.layout.activity_probe;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        hideActionBar();
+        initView();
+        ffmpegHandler = new FFmpegHandler(mHandler);
+    }
+
+    private void initView() {
+        progressProbe = getView(R.id.progress_probe);
+        layoutProbe = getView(R.id.layout_probe);
+        initViewsWithClick(R.id.btn_probe_format);
+        txtProbeFormat = getView(R.id.txt_probe_format);
+    }
+
+    @Override
+    public void onViewClick(View view) {
+        selectFile();
+    }
+
+    @Override
+    void onSelectedFile(String filePath) {
+        doHandleAudio(filePath);
+    }
+
+    /**
+     * use ffprobe to parse video/audio format metadata
+     *
+     * @param srcFile srcFile
+     */
+    private void doHandleAudio(final String srcFile) {
+        if (!FileUtil.checkFileExist(srcFile)) {
+            return;
+        }
+        String[] commandLine = FFmpegUtil.probeFormat(srcFile);
+        if (ffmpegHandler != null) {
+            ffmpegHandler.executeFFprobeCmd(commandLine);
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        if (mHandler != null) {
+            mHandler.removeCallbacksAndMessages(null);
+        }
+    }
+
+}

app/src/main/java/com/frank/ffmpeg/handler/FFmpegHandler.java

@@ -78,7 +78,7 @@ public class FFmpegHandler {
 
             @Override
             public void onEnd(int resultCode, String resultMsg) {
-                Log.i(TAG, "handle ffprobe onEnd result=" + resultMsg);
+                Log.e(TAG, "handle ffprobe onEnd result=" + resultMsg);
                 if(isContinue) {
                     mHandler.obtainMessage(MSG_CONTINUE).sendToTarget();
                 }else {

app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java

@@ -358,8 +358,22 @@ public class FFmpegUtil {
      */
     public static String[] moveMoovAhead(String inputFile, String outputFile) {
         String moovCmd = "ffmpeg -i %s -movflags faststart -acodec copy -vcodec copy %s";
-        moovCmd = String.format(Locale.CHINESE, moovCmd, inputFile, outputFile);
+        moovCmd = String.format(Locale.getDefault(), moovCmd, inputFile, outputFile);
         return moovCmd.split(" ");
     }
 
+    /**
+     * 使用ffprobe探测多媒体格式
+     *
+     * @param inputFile  inputFile
+     * @return 多媒体格式数据
+     */
+    public static String[] probeFormat(String inputFile) {
+        //show format:ffprobe -i %s -show_format -print_format json
+        //show stream:ffprobe -i %s -show_streams
+        String ffprobeCmd = "ffprobe -i %s -show_streams -show_format -print_format json";
+        ffprobeCmd = String.format(Locale.getDefault(), ffprobeCmd, inputFile);
+        return ffprobeCmd.split(" ");
+    }
+
 }

app/src/main/res/layout/activity_main.xml

@@ -69,6 +69,13 @@
                 android:text="@string/video_preview"
                 android:layout_marginTop="10dp" />
 
+            <Button
+                android:id="@+id/btn_probe"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/media_probe"
+                android:layout_marginTop="10dp" />
+
         </LinearLayout>
     </ScrollView>
 

app/src/main/res/layout/activity_probe.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <RelativeLayout
+        android:id="@+id/layout_probe"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <Button
+            android:id="@+id/btn_probe_format"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="60dp"
+            android:text="@string/media_probe"
+            android:textColor="@color/colorPrimary"
+            android:layout_centerHorizontal="true"/>
+
+        <TextView
+            android:id="@+id/txt_probe_format"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:layout_below="@+id/btn_probe_format"
+            android:layout_centerHorizontal="true"/>
+    </RelativeLayout>
+
+    <ProgressBar
+        android:id="@+id/progress_probe"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:visibility="gone"/>
+
+</RelativeLayout>

app/src/main/res/values/strings.xml

@@ -19,6 +19,7 @@
     <string name="media_extra_audio">提取音频</string>
     <string name="media_extract_video">提取视频</string>
     <string name="media_play">音视频播放</string>
+    <string name="media_probe">解析多媒体格式</string>
 
     <string name="video_cut">视频剪切</string>
     <string name="video_concat">视频拼接</string>