Java TranscodingService類代碼示例

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
private long getFileLength(TranscodingService.Parameters parameters) {
    MediaFile file = parameters.getMediaFile();

    if (!parameters.isDownsample() && !parameters.isTranscode()) {
        return file.getFileSize();
    }
    Integer duration = file.getDurationSeconds();
    Integer maxBitRate = parameters.getMaxBitRate();

    if (duration == null) {
        LOG.warn("Unknown duration for " + file + ". Unable to estimate transcoded size.");
        return file.getFileSize();
    }

    if (maxBitRate == null) {
        LOG.error("Unknown bit rate for " + file + ". Unable to estimate transcoded size.");
        return file.getFileSize();
    }

    return duration * maxBitRate * 1000L / 8L;
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
private InputStream getImageInputStreamForVideo(MediaFile mediaFile, int width, int height, int offset) throws Exception {
    VideoTranscodingSettings videoSettings = new VideoTranscodingSettings(width, height, offset, 0, false);
    TranscodingService.Parameters parameters = new TranscodingService.Parameters(mediaFile, videoSettings);
    String command = settingsService.getVideoImageCommand();
    parameters.setTranscoding(new Transcoding(null, null, null, null, command, null, null, false));
    return transcodingService.getTranscodedInputStream(parameters);
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
protected Res createResourceForSong(MediaFile song) {
    Player player = playerService.getGuestPlayer(null);
    String url = getBaseUrl() + "stream?id=" + song.getId() + "&player=" + player.getId();
    if (song.isVideo()) {
        url += "&format=" + TranscodingService.FORMAT_RAW;
    }

    String suffix = song.isVideo() ? FilenameUtils.getExtension(song.getPath()) : transcodingService.getSuffix(player, song, null);
    String mimeTypeString = StringUtil.getMimeType(suffix);
    MimeType mimeType = mimeTypeString == null ? null : MimeType.valueOf(mimeTypeString);

    Res res = new Res(mimeType, null, url);
    res.setDuration(formatDuration(song.getDurationSeconds()));
    return res;
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
public PlayQueueInputStream(Player player, TransferStatus status, Integer maxBitRate, String preferredTargetFormat,
                            VideoTranscodingSettings videoTranscodingSettings, TranscodingService transcodingService,
                            AudioScrobblerService audioScrobblerService, MediaFileService mediaFileService, SearchService searchService) {
    this.player = player;
    this.status = status;
    this.maxBitRate = maxBitRate;
    this.preferredTargetFormat = preferredTargetFormat;
    this.videoTranscodingSettings = videoTranscodingSettings;
    this.transcodingService = transcodingService;
    this.audioScrobblerService = audioScrobblerService;
    this.mediaFileService = mediaFileService;
    this.searchService = searchService;
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
private void prepare() throws IOException {
    PlayQueue playQueue = player.getPlayQueue();

    // If playlist is in auto-random mode, populate it with new random songs.
    if (playQueue.getIndex() == -1 && playQueue.getRandomSearchCriteria() != null) {
        populateRandomPlaylist(playQueue);
    }

    MediaFile result;
    synchronized (playQueue) {
        result = playQueue.getCurrentFile();
    }
    MediaFile file = result;
    if (file == null) {
        close();
    } else if (!file.equals(currentFile)) {
        close();
        LOG.info(player.getUsername() + " listening to \"" + FileUtil.getShortPath(file.getFile()) + "\"");
        mediaFileService.incrementPlayCount(file);

        // Don't scrobble REST players (except Sonos)
        if (player.getClientId() == null || player.getClientId().equals(SonosHelper.SUBSONIC_CLIENT_ID)) {
            audioScrobblerService.register(file, player.getUsername(), false, null);
        }

        TranscodingService.Parameters parameters = transcodingService.getParameters(file, player, maxBitRate, preferredTargetFormat, videoTranscodingSettings);
        currentInputStream = transcodingService.getTranscodedInputStream(parameters);
        currentFile = file;
        status.setFile(currentFile.getFile());
    }
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
private void prepare() throws IOException {
    PlayQueue playQueue = player.getPlayQueue();

    // If playlist is in auto-random mode, populate it with new random songs.
    if (playQueue.getIndex() == -1 && playQueue.getRandomSearchCriteria() != null) {
        populateRandomPlaylist(playQueue);
    }

    MediaFile result;
    synchronized (playQueue) {
        result = playQueue.getCurrentFile();
    }
    MediaFile file = result;
    if (file == null) {
        close();
    } else if (!file.equals(currentFile)) {
        close();
        LOG.info(player.getUsername() + " listening to \"" + FileUtil.getShortPath(file.getFile()) + "\"");
        mediaFileService.incrementPlayCount(file);
        mediaFileService.updateStatisticsUser(player.getUsername(), file);

        if (player.getClientId() == null) {  // Don't scrobble REST players.
            audioScrobblerService.register(file, player.getUsername(), false, null);
        }

        TranscodingService.Parameters parameters = transcodingService.getParameters(file, player, maxBitRate, preferredTargetFormat, videoTranscodingSettings, true);
        currentInputStream = transcodingService.getTranscodedInputStream(parameters);
        currentFile = file;
        status.setFile(currentFile.getFile());
    }
}
 

import net.sourceforge.subsonic.service.TranscodingService; //導入依賴的package包/類
public void setTranscodingService(TranscodingService transcodingService) {
    this.transcodingService = transcodingService;
}