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Sur d’autres sites (8682)

  • How to deal ffplay bein too slow playing iPhone's videos ?

    21 janvier 2019, par Mikhail T.

    Trying to play a 3840x2160 video recorded by an iPhone 7 (@30fps), I get frequent pauses — in the video, music keeps playing.

    This happens both in firefox and when ffplay is invoked to play the file directly — from command-line. The CPU is a dual E6700 @3.20GHz — not super fast, but it should be able to play smoothly, shouldn’t it ? Video is Intel’s "series 4" integrated chipset — again, not a speed-daemon, but it should be adequate... Support for Intel’s VA API is included.

    I build ffmpeg-4.1 from source using FreeBSD port. As you can see, the port has a maddening amount of options — including several different ones for the 264-codec.

    Any suggestions for improving the decoding speed to the point, where it is watchable by a human ? Thank you !

  • Killing cmd processes in Bravobit FFmpeg

    10 octobre 2018, par kataroty

    I am using Bravobit FFmpeg Bravobit FFmpeg github to convert some audio files. There are more convertion than these 2 but I do not think they are necessary to add here.

    My question is, is it possible to kill or stop these commands once they are started.

    At the moment when I start the first method convertPCMToWav() and then call finish() in the Main method which stops all other processes but these. They just keep on going like nothing has happened.

    public class AudioProcessor {

       private Context context;
       private FFmpeg ffmpeg;

       private File micPcmFile;

       private File pcmtowavTempFile;
       private File mp3towavTempFile;

       public AudioProcessor(Context context, Activity activity) {
           ffmpeg = null;
           ffmpeg = FFmpeg.getInstance(context);
           this.context = context;
           prepare();
       }

       /**
        * Program main method. Starts running program
        * @throws Exception
        */
       public void process() throws Exception {
           if (!ffmpeg.isSupported()) {
               Log.e("AudioProcessor", "FFMPEG not supported! Cannot convert audio!");
               throw new Exception("FFMPeg has to be supported");
           }
           if (!checkIfAllFilesPresent()) {
               Log.e("AudioProcessor", "All files are not set yet. Please set file first");
               throw new Exception("Files are not set!");
           }

           Log.e("AudioProcessor", "Start processing audio");




           Handler handler = new Handler();
           handler.postDelayed(new Runnable() {
               @Override
               public void run() {
                   convertPCMToWav();
               }
           }, 200);
       }

       /**
        * Prepares program
        */
       private void prepare() {
           prepareTempFiles();
       }

       /**
        * Converts PCM to wav file. Automatically create new file.
        */
       private void convertPCMToWav() {
           String[] cmd = { "-f" , "s16le", "-ar", "44.1k", "-i", micPcmFile.toString(), "-y", pcmtowavTempFile.toString()};
           ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {

               @Override
               public void onStart() {
                   super.onStart();
               }

               @Override
               public void onSuccess(String message) {
                   super.onSuccess(message);
                   convertMP3ToWav();
               }
               @Override
               public void onFailure(String message) {
                   super.onFailure(message);
               }
           });
       }

       /**
        * Converts mp3 file to wav file.
        * Creates Wav file
        */
       private void convertMP3ToWav() {
           String[] cmd = { "-i" , backgroundMp3File.toString(), "-y", mp3towavTempFile.toString() };
           ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
               @Override
               public void onStart() {
                   super.onStart();
               }

               @Override
               public void onSuccess(String message) {
                   super.onSuccess(message);
                   changeMicAudio();
               }
               @Override
               public void onFailure(String message) {
                   super.onFailure(message);

               }
           });
       }

      /**
        * Prepares temp required files by deleteing them if they exsist.
        * Files cannot exists before ffmpeg actions. FFMpeg automatically creates those files.
        */
       private void prepareTempFiles() {
           pcmtowavTempFile = new File(context.getFilesDir()+ Common.TEMP_LOCAL_DIR + "/" + "_pcm.wav");
           mp3towavTempFile = new File(context.getFilesDir()+ Common.TEMP_LOCAL_DIR + "/" + "_mp3.wav");  
           destroyTempFiles();
       }

      /**
        * Destroys temp required files
        */
        private void destroyTempFiles() {

            pcmtowavTempFile.delete();
            mp3towavTempFile.delete();
       }

    }
  • FFMpeg Error initializing filter 'drawtext' on Android project

    14 janvier 2019, par user3884677

    I try to draw a text on a video using FFMpeg but I have the error :

    ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
         built with gcc 4.8 (GCC)
         configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
         libavutil      55. 17.103 / 55. 17.103
         libavcodec     57. 24.102 / 57. 24.102
         libavformat    57. 25.100 / 57. 25.100
         libavdevice    57.  0.101 / 57.  0.101
         libavfilter     6. 31.100 /  6. 31.100
         libswscale      4.  0.100 /  4.  0.100
         libswresample   2.  0.101 /  2.  0.101
         libpostproc    54.  0.100 / 54.  0.100
       Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/mediapicker/videos/eb89fc80-ebcc-4848-a95c-6983b2c5b09d.mp4':
         Metadata:
           major_brand     : 3gp4
           minor_version   : 0
           compatible_brands: isom3gp4
           creation_time   : 2018-10-03 15:46:13
           com.android.version: 6.0
         Duration: 00:00:04.78, start: 0.000000, bitrate: 6167 kb/s
           Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 6122 kb/s, SAR 1:1 DAR 16:9, 19.95 fps, 19.92 tbr, 90k tbn, 180k tbc (default)
           Metadata:
             rotate          : 90
             creation_time   : 2018-10-03 15:46:13
             handler_name    : VideoHandle
           Side data:
             displaymatrix: rotation of -90.00 degrees
           Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
           Metadata:
             creation_time   : 2018-10-03 15:46:13
             handler_name    : SoundHandle
       Fontconfig error: Cannot load default config file
       [Parsed_drawtext_0 @ 0xb561e040] impossible to init fontconfig
       [AVFilterGraph @ 0xb5609140] Error initializing filter 'drawtext' with args '"fontfile=/usr/share/fonts/TTF/Vera.ttf: text=Test Heading"'
       Error opening filters!

    This is my code :

    private GLSurfaceView mGLView;
       private Button chooseVideo;
       private Button valideButton;
       private String SelectedVideo;
       private VideoView videoView;

       @Override
       protected void onCreate(Bundle savedInstanceState) {

           super.onCreate(savedInstanceState);
           setContentView(R.layout.activity_main);

           chooseVideo= findViewById(R.id.choose_video);
           chooseVideo.setOnClickListener(new View.OnClickListener() {
               public void onClick(View v) {

                   new VideoPicker.Builder(MainActivity.this)
                           .mode(VideoPicker.Mode.GALLERY)
                           .directory(VideoPicker.Directory.DEFAULT)
                           .extension(VideoPicker.Extension.MP4)
                           .enableDebuggingMode(true)
                           .build();
               }
           });
           videoView = (VideoView) findViewById(R.id.videoView);
           final FFmpeg ffmpeg = FFmpeg.getInstance(MainActivity.this);
           try {
               ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
                   @Override
                   public void onStart() {
                   }

                   @Override
                   public void onFailure() {
                   }

                   @Override
                   public void onSuccess() {
                   }

                   @Override
                   public void onFinish() {
                   }
               });
           } catch (FFmpegNotSupportedException e) {
           }
           valideButton= findViewById(R.id.valide);
           valideButton.setOnClickListener(new View.OnClickListener() {
               public void onClick(View v) {
                   try {
                       String[] cmd = {"-y" , "-i", SelectedVideo,
                               "-vf", "drawtext=\"fontfile=/usr/share/fonts/TTF/Vera.ttf: text=\'Test Heading\'\"",
                               "-acodec",
                               "copy",                       Environment.getExternalStorageDirectory()+"/"+Environment.DIRECTORY_MOVIES+"/output.mp4"};

                       ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {

                           @Override
                           public void onStart() {
                           }

                           @Override
                           public void onProgress(String message) {
                           }

                           @Override
                           public void onFailure(String message) {
                               Log.i("ffmpegFailure",message);
                           }

                           @Override
                           public void onSuccess(String message) {
                               Log.i("ffmpegExecute",message);
                               videoView.setVideoPath(Environment.getExternalStorageDirectory()+"/"+Environment.DIRECTORY_MOVIES+"/output.mp4");
                               videoView.requestFocus();
                               videoView.start();
                           }
                           @Override
                           public void onFinish() {
                           }
                       });
                   } catch (FFmpegCommandAlreadyRunningException e) {
                       // Handle if FFmpeg is already running
                   }
               }
           });
    }

    My problem is that I can not use the option ’drawtext’. When I don’t use the option ’drawtext’ it’s work. I do not know which syntax I should use.
    I tried a lot of possibilities without success.
    I use this library : http://writingminds.github.io/ffmpeg-android-java/

    Can you help me ?