Examples with CrossfadeCat net.sourceforge.sox.CrossfadeCat used on opensource projects

Example 1 with CrossfadeCat

use of net.sourceforge.sox.CrossfadeCat in project storymaker by StoryMaker.

the class MediaAudioExporter method concatMediaFiles.

private void concatMediaFiles(ArrayList<MediaDesc> listMediaDesc, MediaDesc mdout) throws Exception {
    //now add 1 second cross fade to each audio file and cat them together
    SoxController sxCon = new SoxController(mContext, sc);
    int exportBitRate = mdout.audioBitrate;
    String exportCodec = mdout.audioCodec;
    FfmpegController ffmpegc = new FfmpegController(mContext, mFileTemp);
    ArrayList<MediaDesc> alAudio = new ArrayList<MediaDesc>();
    Message msg = null;
    //convert each input file to a WAV so we can use Sox to process
    int wavIdx = 0;
    for (MediaDesc mediaIn : listMediaDesc) {
        if (new File(mediaIn.path).exists()) {
            msg = mHandler.obtainMessage(0);
            msg.getData().putString("status", mContext.getString(R.string.extracting_audio_multiple) + " " + (wavIdx + 1) + "/" + listMediaDesc.size());
            mHandler.sendMessage(msg);
            MediaDesc audioOut = ffmpegc.convertToWaveAudio(mediaIn, new File(mFileTemp, wavIdx + ".wav").getCanonicalPath(), mAudioSampleRate, CHANNELS, sc);
            alAudio.add(audioOut);
            float duration = (float) sxCon.getLength(new File(audioOut.path).getCanonicalPath());
            Timber.d("got clip " + wavIdx + " length: " + duration);
            if (mediaIn.duration == null) {
                mediaIn.duration = String.format(Locale.US, "%f", duration);
            } else {
                Timber.d("found clip " + wavIdx + " existing length: " + mediaIn.duration);
            }
            wavIdx++;
        } else {
            throw new FileNotFoundException(mediaIn.path);
        }
    }
    String fileOut = alAudio.get(0).path;
    msg = mHandler.obtainMessage(0);
    msg.getData().putString("status", mContext.getString(R.string.crossfading_audio));
    mHandler.sendMessage(msg);
    for (int i = 1; i < alAudio.size(); i++) {
        if (i > 1)
            alAudio.get(0).audioVolume = 1.0f;
        //String fileAdd = new File(alAudio.get(i).path).getCanonicalPath();
        CrossfadeCat xCat = new CrossfadeCat(sxCon, alAudio.get(0), alAudio.get(i), fadeLen, alAudio.get(0));
        xCat.start();
        msg = mHandler.obtainMessage(0);
        msg.getData().putString("status", mContext.getString(R.string.crossfading_audio_multiple) + " " + (i + 1) + "/" + alAudio.size());
        mHandler.sendMessage(msg);
    }
    msg = mHandler.obtainMessage(0);
    msg.getData().putString("status", mContext.getString(R.string.fade_audio));
    mHandler.sendMessage(msg);
    //1 second fade in and fade out, t = triangle or linear
    //String fadeLenStr = sxCon.formatTimePeriod(fadeLen);
    String fadeFileOut = sxCon.fadeAudio(fileOut, fadeType, fadeLen, 0, fadeLen);
    //now export the final file to our requested output format		    mOut.mimeType = AppConstants.MimeTypes.MP4_AUDIO;
    MediaDesc mdFinalIn = new MediaDesc();
    mdFinalIn.path = fadeFileOut;
    mdout.audioBitrate = exportBitRate;
    mdout.audioCodec = exportCodec;
    msg = mHandler.obtainMessage(0);
    msg.getData().putString("status", mContext.getString(R.string.converting_audio));
    mHandler.sendMessage(msg);
    MediaDesc exportOut = ffmpegc.convertTo3GPAudio(mdFinalIn, mdout, sc);
}