Recherche avancée

Sur d’autres sites (14208)

• Appending an audio recording to an existing file with FFmpeg possible ?

  9 septembre 2017, par Faizuddin Mohammed

  My actual intention is to mute recording and have silence in the audio, but after a lot of research, looks like it’s tough to do it with FFmpeg.

  So, now, I’m planning to kill the recording process when mute is required and start a new process with null source and append the output to the existing file, and then, a separate FFmpeg process to process this appended file and get my final converted output.

  But looks like it’s not straightforward to append files in FFmpeg. Any idea what I should be doing ?

  I’m using NodeJS child_process.spawn if it’s any use.

• FFMPEG filter is not implementing

  31 août 2017, par Alok Kumar Verma

  I’m using FFMPEG for applying and saving the file to the specified path. Since I’m new to FFMPEG so I’ve followed this link to import the FFMPEG libraries inside my project.

  FFMPEG libraries are working fine inside my project. Now I’ve followed FFMPEG Commands link for applying filters using commands. For now i’m using vintage filter command to check whether it is working or not

  I’ve followed FFMPEG Project in Android link to apply the filters and save it to my storage path.

  I’m using a file from my storage path to apply filter for the same and saving them inside the specified path. The problem is that the command is implementing(doubtful) but no file is getting saved with the filters, nor I get any exception or any error in my logcat. I"m very doubtful whether what is being left to get the desired result.

  This is my code where I’m using the FFMPEG for applying filters and saving them in the specified path.

  FilterAcitivity.java

  public class FilterActivity extends AppCompatActivity {
  
  
  
  private ArrayList<string> videoReceiveddata = null;
  
  
  
  private EPlayerView ePlayerView;
  
  
  
  private StringBuilder stringBuilder;
  
  
  
  private DataSource.Factory dataSourceFactory;
  
  private ExtractorsFactory extractorsFactory;
  
  
  
  private Button play,stop,noneFilter,faded,noir,instant;
  
  
  
  private FFmpeg fFmpeg;
  
  
  
  private int choice = 0;
  
  
  
  @Override
  
  protected void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.activity_filter);
  
  
  
      Bundle videoExtras = getIntent().getExtras();
  
  
  
      videoReceiveddata = videoExtras.getStringArrayList("sendData");
  
      Log.e("RECEIVED_VIDEO====", videoReceiveddata.toString());
  
  
  
      stringBuilder = new StringBuilder();
  
      for(String path : videoReceiveddata){
  
          stringBuilder.append(path);
  
      }
  
  
  
      //laoding the ffmpeg binary files
  
      loadFFMEPGBinary();
  
  
  
  
  
      BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
  
      TrackSelection.Factory videoTrackSelectionFactory =
  
              new AdaptiveTrackSelection.Factory(bandwidthMeter);
  
      TrackSelector trackSelector =
  
              new DefaultTrackSelector(videoTrackSelectionFactory);
  
      // Measures bandwidth during playback. Can be null if not required.
  
      DefaultBandwidthMeter defaultBandwidthMeter = new DefaultBandwidthMeter();
  
      // Produces DataSource instances through which media data is loaded.
  
      dataSourceFactory = new DefaultDataSourceFactory(getApplicationContext(),
  
              Util.getUserAgent(getApplicationContext(), "TestApp"), defaultBandwidthMeter);
  
      // Produces Extractor instances for parsing the media data.
  
      extractorsFactory = new DefaultExtractorsFactory();
  
      // This is the MediaSource representing the media to be played.
  
      MediaSource videoSource = new ExtractorMediaSource(Uri.parse(stringBuilder.toString()),
  
              dataSourceFactory, extractorsFactory, null, null);
  
  
  
  
  
      // 2. Create the player
  
      final SimpleExoPlayer player =
  
              ExoPlayerFactory.newSimpleInstance(getApplicationContext(), trackSelector);
  
      player.prepare(videoSource);
  
  
  
      ePlayerView = (EPlayerView) findViewById(R.id.ePlayer);
  
      ePlayerView.setSimpleExoPlayer(player);
  
      ePlayerView.onResume();
  
  
  
  
  
  
  
      play = (Button) findViewById(R.id.playButton);
  
      stop = (Button) findViewById(R.id.stopButton);
  
      faded = (Button) findViewById(R.id.fadedFilter);
  
      noneFilter = (Button) findViewById(R.id.noFilter);
  
      noir = (Button) findViewById(R.id.noirFilter);
  
      instant = (Button) findViewById(R.id.instantFilter);
  
  
  
      play.setOnClickListener(new View.OnClickListener() {
  
          @Override
  
          public void onClick(View view) {
  
              MediaSource videoSource = new ExtractorMediaSource(Uri.parse(stringBuilder.toString()),
  
                      dataSourceFactory, extractorsFactory, null, null);
  
              player.prepare(videoSource);
  
              player.setPlayWhenReady(true);
  
          }
  
      });
  
  
  
      stop.setOnClickListener(new View.OnClickListener() {
  
          @Override
  
          public void onClick(View view) {
  
              player.stop();
  
          }
  
      });
  
  
  
      noneFilter.setOnClickListener(new View.OnClickListener() {
  
          @Override
  
          public void onClick(View view) {
  
              choice = 1;
  
              ePlayerView.setGlFilter(new GlFilter());
  
          }
  
      });
  
  
  
      faded.setOnClickListener(new View.OnClickListener() {
  
          @Override
  
          public void onClick(View view) {
  
              choice = 2;
  
              ePlayerView.setGlFilter(new GlSepiaFilter());
  
              Log.e("Filter Applied",ePlayerView.toString());
  
              Log.e("Filter Applied====",stringBuilder.toString());
  
  
  
          }
  
      });
  
  }
  
  
  
  //loading binary of ffmpeg
  
  private void loadFFMEPGBinary() {
  
      try {
  
          if (fFmpeg == null) {
  
              Log.e("TEST=====", "ffmpeg : null");
  
              fFmpeg = FFmpeg.getInstance(this);
  
          }
  
  
  
          fFmpeg.loadBinary(new LoadBinaryResponseHandler() {
  
              @Override
  
              public void onFailure() {
  
                  showUnsupportedExceptionDialog();
  
              }
  
  
  
              @Override
  
              public void onSuccess() {
  
                  Log.d("TESTAPP====", "ffmpef : coorect loaded");
  
              }
  
          });
  
      } catch (FFmpegNotSupportedException e) {
  
          showUnsupportedExceptionDialog();
  
      } catch (Exception e) {
  
          Log.d("TESTAPP=====", "Exception not supported" + e);
  
      }
  
  }
  
  
  
  private void showUnsupportedExceptionDialog() {
  
      new AlertDialog.Builder(FilterActivity.this)
  
              .setIcon(android.R.drawable.ic_dialog_alert)
  
              .setTitle("Not Supported")
  
              .setMessage("Device Not Supported")
  
              .setCancelable(false)
  
              .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
  
                  @Override
  
                  public void onClick(DialogInterface dialog, int which) {
  
                      FilterActivity.this.finish();
  
                  }
  
              })
  
              .create()
  
              .show();
  
  }
  
  
  
  @Override
  
  public boolean onCreateOptionsMenu(Menu menu) {
  
      MenuInflater menuInflater = getMenuInflater();
  
      menuInflater.inflate(R.menu.filter_menu,menu);
  
      return true;
  
  }
  
  
  
  @Override
  
  public boolean onOptionsItemSelected(MenuItem item) {
  
  
  
      switch (item.getItemId()) {
  
          case R.id.save:
  
              if(choice == 1){
  
                  addThatFilter();
  
              }else if(choice == 2){
  
                  Toast.makeText(getApplicationContext(),"No filter",
  
                          Toast.LENGTH_SHORT).show();
  
              }
  
          default:
  
              return super.onOptionsItemSelected(item);
  
      }
  
  }
  
  
  
  private void addThatFilter() {
  
  
  
      String savingPath = Environment.getExternalStorageDirectory().getAbsolutePath().toString()
  
              + "/FilterVideo.mp4";
  
  
  
      String complexCommand = "ffmpeg -y -i"+ stringBuilder.toString() +"-strict experimental -vf " +
  
              "curves=vintage -s 640x480 -r 30 -aspect 4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k -vcodec " +
  
              savingPath;
  
  
  
      execFFMPEGBinary(complexCommand);
  
  }
  
  
  
  private void execFFMPEGBinary( final String complexCommand) {
  
  
  
      try{
  
  
  
          fFmpeg.execute(new String[]{complexCommand}, new ExecuteBinaryResponseHandler(){
  
  
  
              @Override
  
              public void onFailure(String message) {
  
                  Log.e("Failed with output", message);
  
              }
  
  
  
              @Override
  
              public void onSuccess(String message) {
  
                  Toast.makeText(getApplicationContext(),"Success!",Toast.LENGTH_SHORT)
  
                          .show();
  
              }
  
          });
  
      }catch (FFmpegCommandAlreadyRunningException e){
  
          //do nothing
  
      }
  
  } }
  
  </string>

• FFmpeg pipe related issues

  7 décembre 2015, par Ranjit Aneesh

  I am new to FFmpeg and have very little knowledge of different codecs.

  I am using pipes to provide input and to send out output from FFmpeg

  The command I use is essentially

  ffmpeg -i pipe:0  -f flv pipe:1

  I am using a Java program that basically provides an input stream as standard input (pipe:0), FFmpeg converts the video into the required format and sends out to standard output(pipe:1) from where I stream out to my remote location.

  My java program revolves around this piece of code, providing input and sending output as an output stream.

  Essentially my program does what it is supposed to, however I see that the final output video file is not of the complete duration. It is like 10 sec duration, and my sample video is 21 mins ! Also it is missing audio.

  Do I need to provide more info to FFmpeg ?

  EDIT : When I replace the pipe with an input file and an output file,the output is generated correctly without any issues, when I use pipes the size of the file is still larger compared to original. Just in case if it helps to diagnose.

  FFmpeg version SVN-r23418, Copyright (c) 2000-2010 the FFmpeg developers
  built on Jun 2 2010 04:12:01 with gcc 4.4.2
  configuration : —target-os=mingw32 —enable-runtime-cpudetect —enable-avisynth —enable-gpl —enable-version3 —enable-bzlib —enable-libgsm —enable-libfaad —enable-pthreads —enable-libvorbis —enable-libtheora —enable-libspeex —enable-libmp3lame —enable-libopenjpeg —enable-libxvid —enable-libschroedinger —enable-libx264 —extra-libs=’-lx264 -lpthread’ —enable-libopencore_amrwb —enable-libopencore_amrnb —enable-librtmp —extra-libs=’-lrtmp -lssl -lcrypto -lws2_32 -lgdi32 -lwinmm -lcrypt32 -lz’ —arch=x86 —cross-prefix=i686-mingw32- —cc=’ccache i686-mingw32-gcc’ —enable-memalign-hack
  libavutil 50.16. 0 / 50.16. 0
  libavcodec 52.72. 1 / 52.72. 1
  libavformat 52.67. 0 / 52.67. 0
  libavdevice 52. 2. 0 / 52. 2. 0
  libavfilter 1.20. 0 / 1.20. 0
  libswscale 0.11. 0 / 0.11. 0
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’pipe:0’ :
  Metadata :
  major_brand : isom
  minor_version : 1
  compatible_brands : isom
  title :
  artist :
  date :
  album :
  comment :
  Feedback :
  genre :
  Duration : 00:21:46.63, start : 0.000000, bitrate : N/A
  Stream #0.0(und) : Video : h264, yuv420p, 512x288 [PAR 1:1 DAR 16:9], 403 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  Stream #0.1(und) : Audio : aac, 44100 Hz, mono, s16, 47 kb/s
  Output #0, flv, to ’pipe:1’ :
  Metadata :
  encoder : Lavf52.67.0
  Stream #0.0(und) : Video : flv, yuv420p, 512x288 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 1k tbn, 25 tbc
  Stream #0.1(und) : Audio : libmp3lame, 44100 Hz, mono, s16, 64 kb/s
  Stream mapping :
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1