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• Problems with ffmpeg command line on android

  17 mai 2017, par user2193172

  I managed to compile the ffmpeg Static build. But when I am trying to call the ffmpeg command line I get a Java IOException : No such file or Directory.

  My code is as follows :

  public void merge_video(View view){
  
  
  
      if(ffmpeg_file.exists()){
  
            Log.d(null, "ffmpeg exists");
  
        }else{
  
            Log.d(null, "Could not locate ffmpeg in the folder");
  
        }
  
  
  
        File file1 = new File("/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_22.mp4");
  
        if(file1.exists()){
  
            Log.d(null,"File 1 exists");
  
        }
  
        File file2 = new File("/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_28.mp4");
  
        if(file2.exists()){
  
            Log.d(null,"File 2 exists");
  
        }
  
  
  
        String[] ffmpegCommand = new String[5];
  
        ffmpegCommand[0] = "/mnt/sdcard/com.ffmpeg_test/ffmpeg";
  
        ffmpegCommand[1] = "-i";
  
        ffmpegCommand[2] = "concat:/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_22.mp4|/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_28.mp4";
  
        ffmpegCommand[3] = "copy";
  
        ffmpegCommand[4] = "/mnt/sdcard/com.ffmpeg_test/output.mp4";  
  
  
  
        try {
  
            Process ffmpegProcess = new ProcessBuilder(ffmpegCommand).redirectErrorStream(true).start();
  
  
  
            String line;
  
            BufferedReader reader = new BufferedReader(new InputStreamReader(ffmpegProcess.getInputStream()));
  
            Log.d(null, "*******Starting FFMPEG");
  
  
  
            while((line = reader.readLine())!=null){
  
  
  
                Log.d(null, "***"+line+"***"); 
  
            }
  
            Log.d(null,"****ending FFMPEG****");
  
  
  
      } catch (IOException e) {
  
          e.printStackTrace();
  
      }
  
    }

  The LogCat print is as follows :

  03-27 20:41:10.522: W/System.err(24709): java.io.IOException: Error running exec(). Command: [/mnt/sdcard/com.ffmpeg_test/ffmpeg, -i, concat:/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_22.mp4|/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_28.mp4, copy, /mnt/sdcard/com.ffmpeg_test/output.mp4] Working Directory: null Environment: [ANDROID_SOCKET_zygote=13, TMPDIR=/data/local/tmp, ANDROID_BOOTLOGO=1, EXTERNAL_STORAGE=/mnt/sdcard, ANDROID_ASSETS=/system/app, PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin, ASEC_MOUNTPOINT=/mnt/asec, LOOP_MOUNTPOINT=/mnt/obb, BOOTCLASSPATH=/system/framework/core.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/core-junit.jar, USBHOST_STORAGE=/mnt/sdcard/usbStorage, ANDROID_DATA=/data, LD_LIBRARY_PATH=/vendor/lib:/system/lib, ANDROID_ROOT=/system, ANDROID_PROPERTY_WORKSPACE=12,32768, EXTERNAL_STORAGE2=/mnt/sdcard/external_sd]
  
  03-27 20:41:10.522: W/System.err(24709):    at java.lang.ProcessManager.exec(ProcessManager.java:224)
  
  03-27 20:41:10.522: W/System.err(24709):    at java.lang.ProcessBuilder.start(ProcessBuilder.java:202)
  
  03-27 20:41:10.522: W/System.err(24709):    at com.example.ffmpeg_test.MainActivity.merge_video(MainActivity.java:106)
  
  03-27 20:41:10.522: W/System.err(24709):    at java.lang.reflect.Method.invokeNative(Native Method)
  
  03-27 20:41:10.522: W/System.err(24709):    at java.lang.reflect.Method.invoke(Method.java:507)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.view.View$1.onClick(View.java:2149)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.view.View.performClick(View.java:2538)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.view.View$PerformClick.run(View.java:9152)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.os.Handler.handleCallback(Handler.java:587)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.os.Handler.dispatchMessage(Handler.java:92)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.os.Looper.loop(Looper.java:123)
  
  03-27 20:41:10.527: W/System.err(24709):    at android.app.ActivityThread.main(ActivityThread.java:3691)
  
  03-27 20:41:10.527: W/System.err(24709):    at java.lang.reflect.Method.invokeNative(Native Method)
  
  03-27 20:41:10.527: W/System.err(24709):    at java.lang.reflect.Method.invoke(Method.java:507)
  
  03-27 20:41:10.532: W/System.err(24709):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
  
  03-27 20:41:10.532: W/System.err(24709):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
  
  03-27 20:41:10.537: W/System.err(24709):    at dalvik.system.NativeStart.main(Native Method)
  
  03-27 20:41:10.537: W/System.err(24709): Caused by: java.io.IOException: No such file or directory
  
  03-27 20:41:10.537: W/System.err(24709):    at java.lang.ProcessManager.exec(Native Method)
  
  03-27 20:41:10.537: W/System.err(24709):    at java.lang.ProcessManager.exec(ProcessManager.java:222)
  
  03-27 20:41:10.537: W/System.err(24709):    ... 16 more
  
  03-27 20:41:36.057: W/KeyCharacterMap(24709): No keyboard for id 0
  
  03-27 20:41:36.057: W/KeyCharacterMap(24709): Using default keymap: /system/usr/keychars/qwerty.kcm.bin

• avformat/asfdec : Use a parser for mpeg4-asp to find has_b_frames

  3 juin 2014, par Michael Niedermayer

  avformat/asfdec : Use a parser for mpeg4-asp to find has_b_frames
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/asfdec.c

• FFmpeg add multiple audio files to video at specific points

  3 juin 2014, par Arran

  I have two audio files, each about 3 minutes long. I want to take the first 10 seconds of each file and add them each to a video file at specific points - 0 seconds and 10 seconds. So the resulting video should be 20 seconds long.

  I’ve got this far :

  ffmpeg -i video.mov -ss 0 -t 20 -itsoffset 0 -i audio1.mp3 -itsoffset 10 -i audio2.mp3 -acodec copy -vcodec copy out.mov

  ...but the resulting video has 20 seconds of the first audio file only, the second audio file doesn’t start at 10 seconds like it should.

  Any help would be appreciated, thanks !