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• FFmpeg Video Streaming on android app

  18 avril 2017, par Johnny Roger

  I’m trying to do a streaming of my laptop webcam to my android smartphone.
  So I set an ffserver in this way

  HTTPPort 1234
  
  RTSPPort 1235
  
  
  
  <feed>
  
          File /tmp/feed2.ffm
  
          FileMaxSize 2M
  
          ACL allow 127.0.0.1
  
  </feed>
  
  
  
  <stream>
  
      Feed feed2.ffm
  
      Format rtp
  
      Noaudio
  
      VideoCodec libx264
  
      AVOptionVideo flags +global_header
  
      AVOptionVideo me_range 16
  
      AVOptionVideo qdiff 4
  
      AVOptionVideo qmin 10
  
      AVOptionVideo qmax 51
  
      ACL allow 192.168.0.0 192.168.255.255
  
  </stream>

  and I used the following ffmpeg instruction

  ffmpeg -i /dev/video0 -vcodec libx264 -tune zerolatency -crf 18 http://localhost:1234/feed2.ffm

  in my android studio project i set in the manifest file

  That is my MainActivity.java

  package com.example.johnny.ffmpeg;
  
  
  
  import android.app.ProgressDialog;
  
  import android.content.Context;
  
  import android.media.MediaPlayer;
  
  import android.os.Bundle;
  
  import android.app.Activity;
  
  import android.support.v7.app.AppCompatActivity;
  
  import android.util.Log;
  
  import android.view.SurfaceView;
  
  import android.view.View;
  
  import android.net.Uri;
  
  import android.widget.Button;
  
  import android.widget.ImageButton;
  
  import android.widget.ImageView;
  
  import android.widget.MediaController;
  
  import android.widget.Toast;
  
  import android.widget.VideoView;
  
  
  
  
  
  public class MainActivity extends AppCompatActivity implements VideoView.OnClickListener
  
  {
  
  
  
      ProgressDialog mDialog;
  
      VideoView videoView;
  
      ImageView btnPlayPause;
  
      MediaController mediaController;
  
  
  
      String videoURL ="rtsp://192.168.1.100:1235/test1.sdp";
  
  
  
  
  
      @Override
  
      protected void onCreate(Bundle savedInstanceState)
  
      {
  
          super.onCreate(savedInstanceState);
  
  
  
  
  
          setContentView(R.layout.activity_main);
  
  
  
          videoView =(VideoView)findViewById(R.id.videoView);
  
          mediaController= new MediaController(this);
  
          mediaController.setAnchorView(videoView);
  
          btnPlayPause = (ImageButton)findViewById(R.id.btn_play_pause);
  
          btnPlayPause.setOnClickListener(this);
  
  
  
      }
  
  
  
      @Override
  
      public void onClick(View v) {
  
          mDialog = new ProgressDialog(MainActivity.this);
  
          mDialog.setMessage("Please wait...");
  
          mDialog.setCanceledOnTouchOutside(false);
  
          mDialog.show();
  
  
  
          Uri uri = Uri.parse(videoURL);
  
          videoView.setVideoURI(uri);
  
  
  
          try{
  
              if(!videoView.isPlaying()) {
  
  
  
  
  
                  videoView.setMediaController(mediaController);
  
                  videoView.requestFocus();
  
  
  
                  videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
  
                      @Override
  
                      public void onCompletion(MediaPlayer mp) {
  
                          btnPlayPause.setImageResource(R.drawable.ic_aplay);
  
                      }
  
                  });
  
              }
  
              else
  
              {
  
                  videoView.pause();
  
                  btnPlayPause.setImageResource(R.drawable.ic_pause);
  
              }
  
          }
  
          catch(Exception ex)
  
          {
  
  
  
              Context context = getApplicationContext();
  
              String text = ex.toString();
  
              int duration = Toast.LENGTH_SHORT;
  
  
  
              Toast toast = Toast.makeText(context, text, duration);
  
              toast.show();
  
          }
  
  
  
          videoView.requestFocus();
  
          videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener(){
  
              @Override
  
              public void onPrepared(MediaPlayer mp){
  
                  mDialog.dismiss();
  
                  mp.setLooping(true);
  
  
  
  
  
  
  
                  videoView.start();
  
                  btnPlayPause.setImageResource(R.drawable.ic_pause);
  
              }
  
          });
  
  
  
          videoView.setOnErrorListener(new MediaPlayer.OnErrorListener() {
  
  
  
              @Override
  
              public boolean onError(MediaPlayer mp, int what, int extra) {
  
                  Log.d("video", "setOnErrorListener ");
  
                  return true;
  
              }
  
          });
  
  
  
      }
  
  }

  and that is the relative activity_main.xml file :

  <relativelayout>
  
  
  
       <videoview></videoview>
  
  
  
      
  
  
  
      <textview></textview>
  
  
  
      <textview></textview>
  
  
  
  </relativelayout>

  I tested the streaming on vlc and it work well (even if with dealy, it’s not in real time).
  The app instead give me the message "can’t play this video" and the following error :

  V/MediaPlayer: message received msg=100, ext1=1, ext2=-38
  
  E/MediaPlayer: Error (1,-38)
  
  D/VideoView: Error: 1,-38
  
  D/video: setOnErrorListener 
  
  E/MediaPlayer: error (1, -38)
  
  V/MediaPlayer: callback application
  
  V/MediaPlayer: back from callback
  
  E/MediaPlayer: Error (1,-38)
  
  D/VideoView: Error: 1,-38
  
  D/video: setOnErrorListener 
  
  
  
  E/ViewRootImpl: sendUserActionEvent() mView == null

  I saw that the problem could be the format of the video, but i tried also with an mp4 file

  ffmpeg -i test.mp4 -vcodec libx264 -tune zerolatency -crf 18 http://localhost:1234/feed2.ffm

  and the result was the same. How Can I fix it and let my app work well ?

• ffmpeg command not working with white space of directory path in Android

  13 avril 2017, par Sakib Syed

  I am working with FFMPEG library in which I want to rotate video using this library which works fine if I am file path has no any white space. But in my case I have white space of video directory (you can see full path in String commandStr onPreExecute() method of asynctask) path then it is not working at all. I have also seen same question like this and some more but not get any idea how to resolved it properly. Below is my code of MainActivity.class

      public class MainActivity extends AppCompatActivity implements View.OnClickListener{
  
  
  
      String workFolder = null;
  
      String demoVideoFolder = null;
  
      String vkLogPath = null;
  
      private boolean commandValidationFailedFlag = false;
  
  
  
      private Button btnRun;
  
  
  
  
  
      @Override
  
      protected void onCreate(Bundle savedInstanceState) {
  
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_main);
  
  
  
          GeneralUtils.checkForPermissionsMAndAbove(MainActivity.this, true);
  
  
  
  
  
          setIds();
  
          setListner();
  
  
  
  
  
          demoVideoFolder = Environment.getExternalStorageDirectory().getAbsolutePath() + "/videokit/";
  
  
  
          Log.i(Prefs.TAG, getString(R.string.app_name) + " version: " + GeneralUtils.getVersionName(getApplicationContext()) );
  
          workFolder = getApplicationContext().getFilesDir().getAbsolutePath() + "/";
  
          vkLogPath = workFolder + "vk.log";
  
  
  
          GeneralUtils.copyLicenseFromAssetsToSDIfNeeded(this, workFolder);
  
          GeneralUtils.copyDemoVideoFromAssetsToSDIfNeeded(this, demoVideoFolder);
  
  
  
  
  
          int rc = GeneralUtils.isLicenseValid(getApplicationContext(), workFolder);
  
          Log.i(Prefs.TAG, "License check RC: " + rc);
  
      }
  
  
  
      private void setListner() {
  
          btnRun.setOnClickListener(this);
  
      }
  
  
  
      private void setIds() {
  
          try {
  
              btnRun =  (Button)findViewById(R.id.btnRun);
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
      }
  
  
  
      @Override
  
      public void onClick(View view) {
  
          switch (view.getId()){
  
              case R.id.btnRun:
  
  
  
                  Log.i(Prefs.TAG, "run clicked.");
  
                  if (GeneralUtils.checkIfFileExistAndNotEmpty(workFolder)) {
  
                      new TranscdingBackground(MainActivity.this).execute();
  
                  }
  
                  else {
  
                      Toast.makeText(getApplicationContext(), workFolder + " not found", Toast.LENGTH_LONG).show();
  
                  }
  
                  break;
  
          }
  
      }
  
  
  
      public class TranscdingBackground extends AsyncTask
  
      {
  
  
  
          ProgressDialog progressDialog;
  
          Activity _act;
  
          String commandStr;
  
  
  
          public TranscdingBackground (Activity act) {
  
              _act = act;
  
          }
  
  
  
  
  
  
  
          @Override
  
          protected void onPreExecute() {
  
  
  
  //            commandStr = "ffmpeg -y -i /storage/emulated/0/WhatsApp/Media/in.mp4 -vf rotate=270*(PI/180) /sdcard/videokit/out.mp4";
  
              commandStr = "ffmpeg -y -i /storage/emulated/0/WhatsApp/Media/WhatsApp Video/in.mp4 -vf rotate=270*(PI/180) /sdcard/videokit/out.mp4";
  
  
  
  
  
              progressDialog = new ProgressDialog(_act);
  
              progressDialog.setMessage("FFmpeg4Android Transcoding in progress...");
  
              progressDialog.show();
  
  
  
          }
  
  
  
          protected Integer doInBackground(String... paths) {
  
              Log.i(Prefs.TAG, "doInBackground started...");
  
  
  
              // delete previous log
  
              boolean isDeleted = GeneralUtils.deleteFileUtil(workFolder + "/vk.log");
  
              Log.i(Prefs.TAG, "vk deleted: " + isDeleted);
  
  
  
              PowerManager powerManager = (PowerManager)_act.getSystemService(Activity.POWER_SERVICE);
  
              PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VK_LOCK");
  
              Log.d(Prefs.TAG, "Acquire wake lock");
  
              wakeLock.acquire();
  
  
  
  
  
  
  
              LoadJNI vk = new LoadJNI();
  
              try {
  
  
  
                  vk.run(GeneralUtils.utilConvertToComplex(commandStr), workFolder, getApplicationContext());
  
  
  
                  // copying vk.log (internal native log) to the videokit folder
  
                  GeneralUtils.copyFileToFolder(vkLogPath, demoVideoFolder);
  
  
  
              } catch (CommandValidationException e) {
  
                  Log.e(Prefs.TAG, "vk run exeption.", e);
  
                  commandValidationFailedFlag = true;
  
  
  
              } catch (Throwable e) {
  
                  Log.e(Prefs.TAG, "vk run exeption.", e);
  
              }
  
              finally {
  
                  if (wakeLock.isHeld())
  
                      wakeLock.release();
  
                  else{
  
                      Log.i(Prefs.TAG, "Wake lock is already released, doing nothing");
  
                  }
  
              }
  
              Log.i(Prefs.TAG, "doInBackground finished");
  
              return Integer.valueOf(0);
  
          }
  
  
  
          protected void onProgressUpdate(Integer... progress) {
  
          }
  
  
  
          @Override
  
          protected void onCancelled() {
  
              Log.i(Prefs.TAG, "onCancelled");
  
              //progressDialog.dismiss();
  
              super.onCancelled();
  
          }
  
  
  
  
  
          @Override
  
          protected void onPostExecute(Integer result) {
  
              Log.i(Prefs.TAG, "onPostExecute");
  
              progressDialog.dismiss();
  
              super.onPostExecute(result);
  
  
  
              // finished Toast
  
              String rc = null;
  
              if (commandValidationFailedFlag) {
  
                  rc = "Command Vaidation Failed";
  
              }
  
              else {
  
                  rc = GeneralUtils.getReturnCodeFromLog(vkLogPath);
  
              }
  
              final String status = rc;
  
              MainActivity.this.runOnUiThread(new Runnable() {
  
                  public void run() {
  
                      Toast.makeText(MainActivity.this, status, Toast.LENGTH_LONG).show();
  
                      if (status.equals("Transcoding Status: Failed")) {
  
                          Toast.makeText(MainActivity.this, "Check: " + vkLogPath + " for more information.", Toast.LENGTH_LONG).show();
  
                      }
  
                  }
  
              });
  
          }
  
      }
  
  
  
  }

  Here onPreExecute() method I have given video file path.

• ffmpegmediaMetadataRetriever cannot be used for m3u8 format ?

  19 juillet 2017, par Nandz

  I want to get the frames from the video URL which is of m3u8 format. I couldn’t retrieve the frame at the specified time. When i tried with mp4 format, it worked. ( Am using android videoview)

  Here is my code.

   public class VideoViewAdapterClass extends RecyclerView.Adapter {
  
  
  
          private List<videomodelactivity> videoListModel;
  
          private Context context;
  
          public Bitmap bitmap;
  
         String videoPath = "https://xxxxxx.xxxxxx.xxxxx/HLS/xxxxxxxx/fruit_milkshake-master-playlist.m3u8";
  
  
  
          public VideoViewAdapterClass(List<videomodelactivity> videoList, Context context) {
  
              this.context = context;
  
  
  
              videoListModel = videoList;
  
  
  
          }
  
  
  
          @Override
  
          public VideoViewAdapterClass.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
  
  
  
              View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(
  
                      R.layout.customized_layout, null);
  
  
  
              ViewHolder viewHolder = new ViewHolder(itemLayoutView);
  
              return viewHolder;
  
  
  
          }
  
  
  
          @Override
  
          public void onBindViewHolder(final VideoViewAdapterClass.ViewHolder holder, int position) {
  
  
  
  
  
             final VideoModelActivity videoModel = videoListModel.get(position);
  
              holder.movieName.setText(videoModel.getMovieName());
  
  
  
              MediaMetadataRetriever mediaMetadataRetriever = null;
  
  
  
              try {
  
                  mediaMetadataRetriever = new MediaMetadataRetriever();
  
                  if (Build.VERSION.SDK_INT >= 14)
  
  
  
                      mediaMetadataRetriever.setDataSource(videoPath, new HashMap());
  
                  bitmap = mediaMetadataRetriever.getFrameAtTime(2000000, MediaMetadataRetriever.OPTION_CLOSEST_SYNC);
  
  
  
  
  
              } catch (Exception e) {
  
                  e.printStackTrace();
  
  
  
              } finally {
  
                  if (mediaMetadataRetriever != null)
  
                      mediaMetadataRetriever.release();
  
              }
  
  
  
              holder.vidImg.setImageBitmap(bitmap);
  
  
  
                      holder.vidImg.setOnClickListener(new View.OnClickListener() {
  
                  @Override
  
                  public void onClick(View view) {
  
  
  
                      Intent intent = new Intent (context, VideoViewActivity.class);
  
                      intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  
                      context.startActivity(intent);
  
  
  
                  }
  
              });
  
  
  
  
  
          }
  
  
  
          @Override
  
          public int getItemCount() {
  
              return videoListModel.size();
  
          }
  
  
  
          public class ViewHolder extends RecyclerView.ViewHolder {
  
  
  
              ImageView vidImg;
  
              TextView movieName;
  
              public ViewHolder(View itemView) {
  
                  super(itemView);
  
  
  
                  vidImg = (ImageView) itemView.findViewById(R.id.imageVid);
  
                  movieName = (TextView) itemView.findViewById(R.id.movieName);
  
              }
  
          }
  
      }
  
  </videomodelactivity></videomodelactivity>