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• How to set header metadata to encoded video ?

  11 juin 2013, par Jona

  I'm encoding some images into an h264 video inside an mp4 container. I'm essentially using the ffmpeg example muxing.c. The thing is I'm trying to set some metadata in the mp4 container such as artist, title, etc...

  I thought using the following would work but it didn't :

  AVDictionary *opts = NULL;
  
  av_dict_set(&opts, "title", "Super Lucky Dude", 0);
  
  av_dict_set(&opts, "author", "Jacky Chan", 0);
  
  av_dict_set(&opts, "album", "Chinese Movie", 0);
  
  av_dict_set(&opts, "year", "05/10/2013", 0);
  
  av_dict_set(&opts, "comment", "This video was created using example app.", 0);
  
  av_dict_set(&opts, "genre", "Action", 0);
  
  
  
  // Write the stream header, if any.
  
  ret = avformat_write_header(oc, &opts);

  After the whole video is created I don't see any metadata written to the video file. Any pointers how to actually do this properly ?

• FFMPEG:Merging Audio(.mp3) and single image convert them into a Video

  5 juin 2013, par Nitish Singla

  I want to merge IMAGE + AUDIO and convert them into video using FFMPEG library,i compiled the library successfully,and got libfmpeg.so.but getting problem to execute the ffmpeg command through java code.This is command which i am using...
  "ffmpeg -i image8.jpg -i file.m4a -acodec copy test.mp4"
  if i execute this ffmpeg command through CMD,my video.mp4 file is successfully created,but if exceute same command through my Activity,it doesnot create any file.

  MY CODE IS :

  public class Mpeg extends Activity

  static {
  
  
  
      System.loadLibrary("ffmpeg");
  
  
  
  }
  
  
  
  @Override
  
  protected void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.activity_mpeg);

  File mf = Environment.getExternalStorageDirectory() ;

      String livestream = mf.getAbsoluteFile()+"smile.png";
  
  
  
      String folderpth = mf.getAbsoluteFile()+"RABBA.MP3";
  
  
  
      //String output="/home/saicomputer/game.mp4";
  
  
  
      String output = new File(Environment.getExternalStorageDirectory(), "video.mp4").getAbsolutePath();
  
      Log.i("Test", "Let's set output to " + output);
  
  
  
      String 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";
  
  
  
      try{
  
  
  
      Process p = Runtime.getRuntime().exec(cmd);
  
  
  
      }
  
  catch(Exception e)
  
  {
  
      System.out.println("exception"+e);
  
  }

  enter code here
  
  CONSOLE OUTPUT-
  
  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
  
  
  
  enter code here
  
  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
  
  0 6-05 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 
  
  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

• Evolution #3778 : [sécurité - inscription] : éviter l’envoi de mot de passe en clair par email et ...

  20 mai 2016, par Guillaume Fahrner

  super ! merci erational !

  pour mémoire :

  [20/05/2016 11:04] tu crois qu’on peut hasher le mdp coté client en javascript sans que ce soit une usine a gaz ?
  [20/05/2016 11:04] mmh aucune idée… :(
  [20/05/2016 11:04] faudrait intégrer le sel dans le formulaire envoyé, comme pour le login...

  à faire et à intégrer un jour dans le core ? :-)