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• Get bitmap / thumbnail from a streaming video with format like .mp4, .3gp in Android ?

  12 janvier 2016, par Androzr

  I am working on ListView which on item click redirecting to a video link.
  I explain my problem :

  I have three types of videos :

  • Youtube
  • Dailymotion
  • Other formats from streaming video like this one : Video Link

  I am trying to get thumbnail to get it in my ImageView from my item of my ListView. I encoutered a problem, I get Youtube thumbnail, Dailymotion thumbnail but I couldn’t get thumbnail for other formats.

  I tried to use MediaMetaDataRetriever class but nothing happens.

  Here is the line where I tried to get my bitmap :

  We are in my VideoAdapter class in the getView method. holder is my ViewHolder class and thumbVideo is my ImageView.

  Here is differents lines I tried :

  holder.thumbVideo.setImageBitmap(createVideoThumbnail(m_Context, Uri.parse(m_Video.getM_Preview())));

  m_Video is my Video class and the method getM_Preview() is getting the link of video thumbnail.

  Here is my createVideoThumbnail(Context context, Uri uri) method :

      public Bitmap createVideoThumbnail(Context context, Uri uri) {
  
      Bitmap bitmap = null;
  
      MediaMetadataRetriever retriever = new MediaMetadataRetriever();
  
      try { 
  
          retriever.setDataSource(context, uri);
  
          bitmap = retriever.getFrameAtTime(-1);
  
      } catch (RuntimeException ex) {
  
      } finally { 
  
          try { 
  
              retriever.release();
  
          } catch (RuntimeException ex) {
  
          } 
  
      } 
  
      return bitmap;
  
  }

  I am looking an answer for 4 days. If anybody know how I can do, it’ll be helpful

• Anomalie #4623 : Styles des fieldset dans l’espace privé

  17 avril 2021

  Oui, j’avais pas pensé au coup des ul / li d’avant.

  Le constat que je vois c’est que
  - soit tu as la structure :
  

  <span class="CodeRay"><span class="tag">form</span> 
    <span class="class">.editer-groupe</span>
      <span class="class">.editer</span><span class="class">.fieldset</span>
         <span class="tag">fieldet</span>
           <span class="class">.editer-groupe</span>
             <span class="class">.editer</span> ...
  </span>
  Télécharger

  - soit :
  

  <span class="CodeRay"><span class="tag">form</span> 
    <span class="tag">fieldet</span>
      <span class="class">.editer-groupe</span>
         <span class="class">.editer</span> ...
  </span>
  Télécharger

  La différence vient de "est-ce que j’ai d’autres champs à la racine que des fieldset" : si oui je dois mettre un .editer-groupe, sinon, le .editer-groupe + .editer.fieldset racine ne sert à rien et on peut enchainer des fieldset directement...

• Piping to ffmpeg on windows

  8 septembre 2021, par Totte Karlsson

  I'm planning to pipe live image data (bitmaps) to ffmpeg in order to create an AVI file.

  



  Looking at the ffmpeg docs regarding pipes, https://ffmpeg.org/ffmpeg-protocols.html#pipe, it only mentions UNIX pipes.

  



  I'm planning using the technique described here : is it possible to send ffmpeg images by using pipe ?

  



  Is there a major difference on Windows that causes piping data to ffmpeg not working on Windows ?