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• Revision 33048 : Un flv n’a pas forcément de vidéo associée ... on écrit les metadatas ...

  18 novembre 2009, par kent1@… — Log

  Un flv n’a pas forcément de vidéo associée ... on écrit les metadatas avant pour être sûr

• How I can use Runtime.getRuntime.exec with ffmpeg library in Android ?

  24 février 2015, par beni

  I’m trying to establish the correct rotation in my recorded video because in some devices the setOrientationHint method doesn’ work becuase in some video players may choose to ignore the compostion matrix in a video during playback, Android Documentation.

  So, I’ve decided to use the ffmpeg library. I’m develop a test for the app. In Ubuntu, I download this library and execute the configure and make to obtain the ffmpeg executable, I copy this executable to the DCIM folder in the sdcard, the same for a video what I’ve recorded for my camera recorder app. So, in the DCIM folder, I have the ffmpeg executable and a video.

  I created a test project and in the onCreate method, I’ve include :

  try {
  
  
  
  Process p= Runtime.getRuntime().exec("chmod 777 /mnt/sdcard/beni/ffmpeg");
  
  p.waitFor();
  
  
  
  p = Runtime.getRuntime().exec("/mnt/sdcard/beni/ffmpeg -i /mnt/sdcard/beni/f.mp4 -vf \"transpose=1\" -r 24 -sameq /mnt/sdcard/beni/f2.mp4");
  
  p.waitFor();
  
  
  
  BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));  
  
  String line = null;  
  
  while ((line = in.readLine()) != null) {  
  
      System.out.println(line);  
  
  }  
  
  
  
  
  
  
  
  
  
  } catch (IOException e) {
  
      e.printStackTrace();
  
  } catch (InterruptedException e) {
  
  e.printStackTrace();
  
  }

  but I have the following warning :

  09-13 13:14:03.547: W/System.err(7782): java.io.IOException: Error running exec(). Command: [/mnt/sdcard/beni/ffmpeg, -i, /mnt/sdcard/beni/f.mp4, -vf, "transpose=1", -r, 24, -sameq, /mnt/sdcard/beni/f2.mp4] Working Directory: null Environment: null
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.ProcessManager.exec(ProcessManager.java:224)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.Runtime.exec(Runtime.java:189)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.Runtime.exec(Runtime.java:275)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.Runtime.exec(Runtime.java:210)
  
  09-13 13:14:03.547: W/System.err(7782):     at com.example.prueba.MainActivity.onCreate(MainActivity.java:22)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.ActivityThread.access$1500(ActivityThread.java:121)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.os.Handler.dispatchMessage(Handler.java:99)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.os.Looper.loop(Looper.java:138)
  
  09-13 13:14:03.547: W/System.err(7782):     at android.app.ActivityThread.main(ActivityThread.java:3701)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.reflect.Method.invokeNative(Native Method)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.reflect.Method.invoke(Method.java:507)
  
  09-13 13:14:03.547: W/System.err(7782):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
  
  09-13 13:14:03.547: W/System.err(7782):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
  
  09-13 13:14:03.547: W/System.err(7782):     at dalvik.system.NativeStart.main(Native Method)
  
  09-13 13:14:03.547: W/System.err(7782): Caused by: java.io.IOException: Permission denied
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.ProcessManager.exec(Native Method)
  
  09-13 13:14:03.547: W/System.err(7782):     at java.lang.ProcessManager.exec(ProcessManager.java:222)
  
  09-13 13:14:03.547: W/System.err(7782):     ... 17 more

  Is this code right ? Or I’ve done something wrong.

• Problem with xampp, some other program you use ? [closed]

  4 avril 2024, par user13449797

  I have been using xampp for several years, but recently I have become more and more bothered by using this program.

  


  sometimes there is a problem with starting MYSQL services. Sometimes solution with helps
text
I don't understand why this problem hasn't been solved yet and what exactly is the problem that sometimes it stops working on its own.

  


  Maybe you have any better alternatives to Windows 11 ?