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Mot : - Tags -/Musique

Autres articles (25)

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    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
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  • Can't convert MP4 to MP3 using FFmpeg in Java

    28 janvier 2015, par Yamaguchi Kose

    I want to extract an audio file(.mp3) from a video file(.3gp) in Android.

    Now I’m trying to use ffmpeg in java file, but only to get an broken mp3 file.
    It only produces a short noise.
    How can it change to an audio format ?

    Here is the code I tried.

    public void convertToMp3 (String audioFilePath, String soundTitle){
    

    
    try {
    
        //TODO: Grabber
    
        FrameGrabber grabber = new FFmpegFrameGrabber( audioFilePath ); // 3gpfile
    
        grabber.setFormat("mp3");
    
        grabber.setSampleFormat(6);
    
        grabber.setSampleRate(44100);
    
        grabber.setFrameRate(30.0);
    
        grabber.setAudioBitrate(192000);
    
        grabber.setAudioChannels(2);
    
        grabber.start();
    

    

    
        //TODO: Recorder
    
        String stragePath = Environment.getExternalStorageDirectory().getAbsolutePath();
    
        FrameRecorder recorder = new FFmpegFrameRecorder(stragePath + "/Music/"+soundTitle+".mp3",grabber.getAudioChannels());
    
        recorder.setSampleFormat(grabber.getSampleFormat());
    
        recorder.setSampleRate(44100);
    
        recorder.setSampleFormat(6);
    
        recorder.setAudioBitrate(128000);
    
        recorder.setAudioChannels(2);
    
        recorder.setFormat("mp3");
    
        recorder.setFrameRate(30.0);
    
        recorder.setAudioCodec(avcodec.AV_CODEC_ID_MP3);
    
        recorder.start();
    

    

    
        Frame frame;
    
        while ((frame = grabber.grabFrame()) != null) {
    
            recorder.record(frame);
    
        }
    
        recorder.stop();
    
        grabber.stop();
    

    
    } catch (FrameGrabber.Exception e) {
    
        e.printStackTrace();
    
    } catch (FrameRecorder.Exception e) {
    
        e.printStackTrace();
    
    }
    
}

    I used these libraries.
    Build.Grade(app)

    dependencies {
    
    compile group: 'org.bytedeco', name: 'javacv', version: '0.10'
    
    compile group: 'org.bytedeco', name: 'javacpp', version: '0.10'
    
    compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '2.4.9-0.9', classifier: 'android-arm'
    
    compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '2.3-0.9', classifier: 'android-arm'
    
}

    Do you have any idea ? Any advice will be appreciated.

  • Can't convert MP4 to MP3 with FFmpeg in Java

    28 janvier 2015, par Yamaguchi Kose

    I want to extract an audio file(.mp3) from a video file(.3gp) in Android.

    Now I’m trying to use ffmpeg in java file, but only to get an broken mp3 file.
    It only produces a short noise.
    How can it change to an audio format ?

    Here is the code I tried.

    public void convertToMp3 (String audioFilePath, String soundTitle){
    

    
    try {
    
        //TODO: Grabber
    
        FrameGrabber grabber = new FFmpegFrameGrabber( audioFilePath ); // 3gpfile
    
        grabber.setFormat("mp3");
    
        grabber.setSampleFormat(6);
    
        grabber.setSampleRate(44100);
    
        grabber.setFrameRate(30.0);
    
        grabber.setAudioBitrate(192000);
    
        grabber.setAudioChannels(2);
    
        grabber.start();
    

    

    
        //TODO: Recorder
    
        String stragePath = Environment.getExternalStorageDirectory().getAbsolutePath();
    
        FrameRecorder recorder = new FFmpegFrameRecorder(stragePath + "/Music/"+soundTitle+".mp3",grabber.getAudioChannels());
    
        recorder.setSampleFormat(grabber.getSampleFormat());
    
        recorder.setSampleRate(44100);
    
        recorder.setSampleFormat(6);
    
        recorder.setAudioBitrate(128000);
    
        recorder.setAudioChannels(2);
    
        recorder.setFormat("mp3");
    
        recorder.setFrameRate(30.0);
    
        recorder.setAudioCodec(avcodec.AV_CODEC_ID_MP3);
    
        recorder.start();
    

    

    
        Frame frame;
    
        while ((frame = grabber.grabFrame()) != null) {
    
            recorder.record(frame);
    
        }
    
        recorder.stop();
    
        grabber.stop();
    

    
    } catch (FrameGrabber.Exception e) {
    
        e.printStackTrace();
    
    } catch (FrameRecorder.Exception e) {
    
        e.printStackTrace();
    
    }
    
}

    I used these libraries.
    Build.Grade(app)

    dependencies {
    
    compile group: 'org.bytedeco', name: 'javacv', version: '0.10'
    
    compile group: 'org.bytedeco', name: 'javacpp', version: '0.10'
    
    compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '2.4.9-0.9', classifier: 'android-arm'
    
    compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '2.3-0.9', classifier: 'android-arm'
    
}

    Do you have any idea ? Any advice will be appreciated.

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