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• Convert video to exactly the same stream type of other video in ffmpeg

  14 avril 2014, par user1750371

  Maybe this is a silly question, didn't manage to find a clear answer anywhere.

  I need to use ffmpeg to convert a given video to exactly the same format another video has, including bitrate, video and audio codecs... everything. The goal is to concat both videos into a single file, independently of the original formats.

  Is there an easy way to do this or do I have to build a complex command line input specifying all parameters ?

  The concat demuxer is not enough... maybe something with filter_complex ?

  Thanks and sorry for the bother.

• FFMPEG : Merge Image and Audio Convert into Video in android using FFMPEG library

  30 janvier 2014, par Nitish Singla

  i want to convert images into video in android using FFMPEG,still now i compiled the library successfully,and also get Libffmpeg.so.
  Using Platform : UBUNTU,Eclipse
  My problem is- when i use this library command too convert video into images through Java code i mean through my Activity i got Error-
  JAVA.IO.EXCEPTION.Enable to execute .Exec() command
  But if i exceute this command through CMD then my video file is created successfully.
  i want to know whats the problem behind it,i am searching from 2 days on it,but could not get the solution,i thing its problem of Execute Permission In android.Plzzz help me,,,or tell me is it possible to in android to make a video file using FFMPEG.

  Code :

  public class Mpeg extends Activity {
  
  
  
  String cmd;
  
  
  
  static {
  
  
  
      System.loadLibrary("ffmpeg");
  
  
  
  }
  
  
  
  @Override
  
  protected void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.activity_mpeg);
  
      File mf = Environment.getExternalStorageDirectory();
  
  
  
  
  
  
  
  
  
      String install="$adb push ./asl-native /sdcard/asl-native";
  
  
  
      String ins="$adb shell /system/bin/chmod 0777 /sdcard/asl-native";
  
  
  
      String start="$adb shell /system/bin/chmod 0777 /sdcard/asl-native";
  
      String str="$adb shell /system/bin/chmod 0777 /sdcard/asl-native";
  
  
  
      try{
  
          Process p = Runtime.getRuntime().exec(install);
  
  
  
          p = Runtime.getRuntime().exec(ins);
  
  
  
          p = Runtime.getRuntime().exec(start);
  
  
  
          p = Runtime.getRuntime().exec(str);
  
  
  
  
  
          Log.e("filee name", "goodddddd"+ install);
  
          Log.e("full command", "goodddddd"+ ins);
  
  
  
          }
  
          catch (Exception e) {
  
              Log.e("image", "exception");
  
          } 
  
  
  
  
  
  
  
      String livestream = mf.getAbsoluteFile()+"/smile.png";
  
      Log.e("image", "imageeeeeeeee " + livestream);
  
  
  
      String folderpth = mf.getAbsoluteFile()+"/RABBA.MP3";
  
  
  
  
  
  
  
  
  
      Log.e("Test", "songggggggggg " + folderpth);
  
  
  
  
  
      String output=mf.getAbsoluteFile()+"/plztest.mp4";;
  
  
  
      //String output = new File(Environment.getExternalStorageDirectory(), "plzz.mp4").getAbsolutePath();
  
      Log.e("Test", "outputttttt " + output);
  
  
  
      cmd= "ffmpeg -i "+ livestream +" -i "+ folderpth +" -acodec copy "+ output;
  
  
  
       Log.e("chck plzzzzz", "after "+ cmd);
  
  
  
      //String jaiho="ffmpeg -i image8.jpg -i file.m4a -acodec copy test.mp4";
  
  
  
      // Boolean heloo=isDeviceRooted_BySu();
  
  
  
       //Log.e("check file", "after "+ heloo);
  
  
  
  
  
      Button   run=(Button)findViewById(R.id.btn);
  
  
  
  
  
          run.setOnClickListener(new View.OnClickListener() {
  
               public void onClick(View v) {
  
                   // Perform action on click
  
  
  
                   try {
  
                       Execute();
  
                      } catch (IOException e) {
  
                          // TODO Auto-generated catch block
  
                          e.printStackTrace();
  
                      } catch (InterruptedException e) {
  
                          // TODO Auto-generated catch block
  
                          e.printStackTrace();
  
                      }
  
               }
  
           });
  
  
  
  
  
      /*
  
  
  
       try{
  
  
  
      Process p = Runtime.getRuntime().exec(cmd);
  
      Log.e("check file", "main fileeee ");
  
  
  
      }
  
      catch (IOException e) {
  
          throw new RuntimeException(e);
  
  
  
      } 
  
      */
  
  
  
   }
  
  
  
  
  
   public void Execute() throws IOException, InterruptedException{
  
  
  
  
  
         Process process=Runtime.getRuntime().exec(cmd);
  
          // process = pb.command(com).redirectErrorStream(true).start();
  
  
  
  
  
      }
  
  @Override
  
  public boolean onCreateOptionsMenu(Menu menu) {
  
      // Inflate the menu; this adds items to the action bar if it is present.
  
      getMenuInflater().inflate(R.menu.mpeg, menu);
  
      return true;
  
  }
  
  
  
  
  
  public static boolean isDeviceRooted_BySu() {
  
      try {
  
          Log.d("BySu", "BySu");
  
          Process p = Runtime.getRuntime().exec("su");
  
          return true;
  
      } catch (IOException e) {
  
          e.printStackTrace();
  
      }
  
      return false;
  
  }
  
  
  
  }

  Logcat output :

  06-05 17:58:10.686: D/dalvikvm(1189): Trying to load lib /data/data/com.example.myfmpeg /lib/libffmpeg.so 0x412a5cf0
  
  06-05 17:58:10.756: I/dalvikvm(1189): threadid=3: reacting to signal 3
  
  06-05 17:58:10.955: D/dalvikvm(1189): Added shared lib /data/data/com.example.myfmpeg/lib/libffmpeg.so 0x412a5cf0
  
  06-05 17:58:10.955: D/dalvikvm(1189): No JNI_OnLoad found in /data/data/com.example.myfmpeg/lib/libffmpeg.so 0x412a5cf0, skipping init
  
  06-05 17:58:11.024: I/dalvikvm(1189): Wrote stack traces to '/data/anr/traces.txt'
  
  06-05 17:58:11.215: I/dalvikvm(1189): threadid=3: reacting to signal 3
  
  06-05 17:58:11.326: I/dalvikvm(1189): Wrote stack traces to '/data/anr/traces.txt'
  
  06-05 17:58:11.466: E/image(1189): imageeeeeeeee /mnt/sdcard/smile.png
  
  06-05 17:58:11.466: E/Test(1189): songggggggggg /mnt/sdcard/RABBA.MP3
  
  06-05 17:58:11.476: E/Test(1189): outputttttt /mnt/sdcard/video.mp4
  
  06-05 17:58:11.476: E/chck plzzzzz(1189): after ffmpeg -i /mnt/sdcard/smile.png -i /mnt/sdcard/RABBA.MP3 -acodec copy /mnt/sdcard/video.mp4
  
  06-05 17:58:11.896: E/AndroidRuntime(1189): FATAL EXCEPTION: main
  
  06-05 17:58:11.896: E/AndroidRuntime(1189): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.myfmpeg/com.example.myfmpeg.Mpeg}: java.lang.RuntimeException: java.io.IOException: Error running exec(). Command: [ffmpeg, -i, /mnt/sdcard/smile.png, -i, /mnt/sdcard/RABBA.MP3, -acodec, copy, /mnt/sdcard/video.mp4] Working Directory: null Environment: null
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.os.Handler.dispatchMessage(Handler.java:99)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.os.Looper.loop(Looper.java:137)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at android.app.ActivityThread.main(ActivityThread.java:4424)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at java.lang.reflect.Method.invokeNative(Native Method)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at java.lang.reflect.Method.invoke(Method.java:511)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189):     at dalvik.system.NativeStart.main(Native Method)
  
  06-05 17:58:11.896: E/AndroidRuntime(1189): Caused by: java.lang.RuntimeException: java.io.IOException: Error running exec(). Command: [ffmpeg, -i, /mnt/sdcard/smile.png, -i, /mnt/sdcard/RABBA.MP3, -acodec, copy, /mnt/sdcard/video.mp4] Working Directory: null Environment: null

• swscale/swscale : clear to/from convert pointers when they used.

  14 avril 2014, par Michael Niedermayer

  swscale/swscale : clear to/from convert pointers when they used.
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libswscale/swscale.c