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• “only position independent executables (PIE) are supported”

  3 juin 2015, par Karthikeyan

  I am using FFMPEG support library to convert bunch of images to video. It works fine on earlier version of the lollipop. But in the lollipop it generates the following error. ***error: only position independent executables (PIE) are supported.*** I know the PIE Security restrictions has been changed in lollipop, but i don’t know how to fix it.

  From my knowledge it may have two possible solutions,

  either

  we need to relocate the FFMPEG library assets to the SDCard and we have to refer them from our coding, if this is the answer what are all the steps to be followed ?

  or

  Is there any update in the FFMPEG library for android lollipop.

  If both are wrong can you provide me with the proper solution.

  Many thanks...

  Here is my code

     try {
  
              String[] ffmpegCommand = {"/data/data/com.mobvcasting.mjpegffmpeg/ffmpeg", "-r", ""+p.getPreviewFrameRate(), "-b", "1000000", "-vcodec", "mjpeg", "-i", 
  
                      Environment.getExternalStorageDirectory().getPath() + "/req_images/frame_%05d.jpg", Environment.getExternalStorageDirectory().getPath() + "/req_images/video.mov"};
  
  
  
              ffmpegProcess = new ProcessBuilder(ffmpegCommand).redirectErrorStream(true).start();            
  
  
  
              OutputStream ffmpegOutStream = ffmpegProcess.getOutputStream();
  
              BufferedReader reader = new BufferedReader(new InputStreamReader(ffmpegProcess.getInputStream()));
  
  
  
              String line;
  
  
  
              Log.v(LOGTAG,"***Starting FFMPEG***");
  
              while ((line = reader.readLine()) != null)
  
              {
  
                  Log.v(LOGTAG,"***"+line+"***");
  
              }
  
              Log.v(LOGTAG,"***Ending FFMPEG***");
  
  
  
  
  
          } catch (IOException e) {
  
              e.printStackTrace();
  
          }
  
  
  
          if (ffmpegProcess != null) {
  
              ffmpegProcess.destroy();        
  
          }

• Use blueimp+jsdoc+prettier eslint config for JS.

  20 juillet 2019, par blueimp

  Use blueimp+jsdoc+prettier eslint config for JS.
  Use stylelint+pretter for CSS.
  
  Use package.json files property instead of .npmignore.
  
  Add a package-lock.json file.
  

• Android Media player/framework species

  4 septembre 2018, par sungyong

  I’m confused about species of media player/framework/library of Android and it’s role and positions.

  Here is my understanding about Android media player and framework.
  

  I don’t have confident what I understand, still be under the chaos.

  From Android developer’s guide,
  for application side : apk uses Application Framework which has two players - MediaPlayer, ExoPlayer

  for Native framework side : it has also various players - Nu, awesome, etc.

  There’re some query for gstreamer vs ffmpeg, ffmpeg vs vlc, or exoplayer vs vitamio. It makes me more confusing.

  Would you clearify me to get the right concept for them ?
  If my android custom device use ffmpeg, that means it doesn’t use standard Android media framework ?

  For stagefright engine, there is no alternative for this ?