private synchronized void cleanup() {
Iterator<DownloadFile> iterator = cleanupCandidates.iterator();
while (iterator.hasNext()) {
DownloadFile downloadFile = iterator.next();
if (downloadFile != currentPlaying && downloadFile != currentDownloading) {
if (downloadFile.cleanup()) {
iterator.remove();
}
}
}
}
public BufferTask(DownloadFile downloadFile, int position) {
this.downloadFile = downloadFile;
this.position = position;
partialFile = downloadFile.getPartialFile();
// Calculate roughly how many bytes BUFFER_LENGTH_SECONDS corresponds to.
int bitRate = downloadFile.getBitRate();
long byteCount = Math.max(100000, bitRate * 1024 / 8 * BUFFER_LENGTH_SECONDS);
// Find out how large the file should grow before resuming playback.
expectedFileSize = partialFile.length() + byteCount;
}
@Override
public synchronized void clearIncomplete() {
reset();
Iterator<DownloadFile> iterator = downloadList.iterator();
while (iterator.hasNext()) {
DownloadFile downloadFile = iterator.next();
if (!downloadFile.isCompleteFileAvailable()) {
iterator.remove();
}
}
lifecycleSupport.serializeDownloadQueue();
updateJukeboxPlaylist();
}
@Override
public synchronized DownloadFile forSong(MusicDirectory.Entry song) {
for (DownloadFile downloadFile : downloadList) {
if (downloadFile.getSong().equals(song)) {
return downloadFile;
}
}
DownloadFile downloadFile = downloadFileCache.get(song);
if (downloadFile == null) {
downloadFile = new DownloadFile(this, song);
downloadFileCache.put(song, downloadFile);
}
return downloadFile;
}
@Override
public synchronized void download(
List<MusicDirectory.Entry> songs, boolean save, boolean autoplay, boolean playNext) {
shufflePlay = false;
int offset = 1;
if (songs.isEmpty()) {
return;
}
if (save) {
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = forSong(song);
downloadFile.pin();
if (!downloadFile.isWorkDone() && !downloadList.contains(downloadFile)) {
downloadList.add(downloadFile);
}
}
} else if (playNext) {
if (autoplay && getCurrentPlayingIndex() >= 0) {
offset = 0;
}
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = new DownloadFile(this, song);
downloadList.add(getCurrentPlayingIndex() + offset, downloadFile);
offset++;
}
} else {
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = new DownloadFile(this, song);
downloadList.add(downloadFile);
}
}
revision++;
updateJukeboxPlaylist();
if (autoplay) {
play(0);
} else {
if (currentPlaying == null) {
currentPlaying = downloadList.get(0);
}
checkDownloads();
}
lifecycleSupport.serializeDownloadQueue();
}
synchronized void setCurrentPlaying(DownloadFile currentPlaying) {
this.currentPlaying = currentPlaying;
MusicDirectory.Entry song = currentPlaying != null ? currentPlaying.getSong() : null;
Util.broadcastNewTrackInfo(this, song);
NotificationUtil.updateNotification(this, this, handler, song, song != null);
}
public void restore(
List<MusicDirectory.Entry> songs, int currentPlayingIndex, int currentPlayingPosition) {
download(songs, false, false, false);
if (currentPlayingIndex != -1) {
play(currentPlayingIndex, false);
if (currentPlaying.isCompleteFileAvailable()) {
doPlay(currentPlaying, currentPlayingPosition, false);
}
}
}
@Override
public void setJukeboxEnabled(boolean jukeboxEnabled) {
this.jukeboxEnabled = jukeboxEnabled;
jukeboxService.setEnabled(jukeboxEnabled);
if (jukeboxEnabled) {
reset();
// Cancel current download, if necessary.
if (currentDownloading != null) {
currentDownloading.cancelDownload();
}
}
}
@Override
public synchronized void remove(DownloadFile downloadFile) {
if (downloadFile == currentDownloading) {
currentDownloading.cancelDownload();
currentDownloading = null;
}
if (downloadFile == currentPlaying) {
reset();
setCurrentPlaying(null);
}
downloadList.remove(downloadFile);
revision++;
lifecycleSupport.serializeDownloadQueue();
updateJukeboxPlaylist();
}
public synchronized void clear(boolean serialize) {
reset();
downloadList.clear();
revision++;
if (currentDownloading != null) {
currentDownloading.cancelDownload();
currentDownloading = null;
}
setCurrentPlaying(null);
if (serialize) {
lifecycleSupport.serializeDownloadQueue();
}
updateJukeboxPlaylist();
}
private boolean bufferComplete() {
boolean completeFileAvailable = downloadFile.isCompleteFileAvailable();
long size = partialFile.length();
LOG.info(
"Buffering "
+ partialFile
+ " ("
+ size
+ "/"
+ expectedFileSize
+ ", "
+ completeFileAvailable
+ ")");
return completeFileAvailable || size >= expectedFileSize;
}
@Override
public synchronized int getPlayerDuration() {
if (currentPlaying != null) {
Integer duration = currentPlaying.getSong().getDuration();
if (duration != null) {
return duration * 1000;
}
}
if (playerState != IDLE && playerState != DOWNLOADING && playerState != PlayerState.PREPARING) {
try {
return mediaPlayer.getDuration();
} catch (Exception x) {
handleError(x);
}
}
return 0;
}
synchronized void setPlayerState(PlayerState playerState) {
LOG.info(this.playerState.name() + " -> " + playerState.name() + " (" + currentPlaying + ")");
if (playerState == PAUSED) {
lifecycleSupport.serializeDownloadQueue();
}
Util.broadcastPlaybackStatusChange(this, playerState);
this.playerState = playerState;
if (playerState == STARTED) {
scrobbler.scrobble(this, currentPlaying, false);
NotificationUtil.setNotificationHiddenByUser(this, false);
} else if (playerState == COMPLETED) {
scrobbler.scrobble(this, currentPlaying, true);
}
MusicDirectory.Entry song = currentPlaying == null ? null : currentPlaying.getSong();
NotificationUtil.updateNotification(this, this, handler, song, this.playerState == STARTED);
}
protected synchronized void checkDownloads() {
if (!Util.isExternalStoragePresent() || !lifecycleSupport.isExternalStorageAvailable()) {
return;
}
if (shufflePlay) {
checkShufflePlay();
}
if (jukeboxEnabled || !Util.isNetworkConnected(this)) {
return;
}
if (downloadList.isEmpty()) {
return;
}
// Need to download current playing?
if (currentPlaying != null
&& currentPlaying != currentDownloading
&& !currentPlaying.isCompleteFileAvailable()) {
// Cancel current download, if necessary.
if (currentDownloading != null) {
currentDownloading.cancelDownload();
}
currentDownloading = currentPlaying;
currentDownloading.download();
cleanupCandidates.add(currentDownloading);
}
// Find a suitable target for download.
else if (currentDownloading == null
|| currentDownloading.isWorkDone()
|| currentDownloading.isFailed()) {
int n = size();
if (n == 0) {
return;
}
int preloaded = 0;
int start = currentPlaying == null ? 0 : getCurrentPlayingIndex();
int i = start;
do {
DownloadFile downloadFile = downloadList.get(i);
if (!downloadFile.isWorkDone()) {
if (downloadFile.shouldSave() || preloaded < Util.getPreloadCount(this)) {
currentDownloading = downloadFile;
currentDownloading.download();
cleanupCandidates.add(currentDownloading);
break;
}
} else if (currentPlaying != downloadFile) {
preloaded++;
}
i = (i + 1) % n;
} while (i != start);
}
// Delete obsolete .partial and .complete files.
cleanup();
}
private synchronized void doPlay(final DownloadFile downloadFile, int position, boolean start) {
try {
final File file =
downloadFile.isCompleteFileAvailable()
? downloadFile.getCompleteFile()
: downloadFile.getPartialFile();
downloadFile.updateModificationDate();
mediaPlayer.setOnCompletionListener(null);
mediaPlayer.reset();
setPlayerState(IDLE);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(file.getPath());
setPlayerState(PREPARING);
mediaPlayer.prepare();
setPlayerState(PREPARED);
mediaPlayer.setOnCompletionListener(
new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mediaPlayer) {
// Acquire a temporary wakelock, since when we return from
// this callback the MediaPlayer will release its wakelock
// and allow the device to go to sleep.
wakeLock.acquire(60000);
setPlayerState(COMPLETED);
// If COMPLETED and not playing partial file, we are *really" finished
// with the song and can move on to the next.
if (!file.equals(downloadFile.getPartialFile())) {
onSongCompleted();
return;
}
// If file is not completely downloaded, restart the playback from the current
// position.
int pos = mediaPlayer.getCurrentPosition();
synchronized (DownloadServiceImpl.this) {
// Work-around for apparent bug on certain phones: If close (less than ten seconds)
// to the end
// of the song, skip to the next rather than restarting it.
Integer duration =
downloadFile.getSong().getDuration() == null
? null
: downloadFile.getSong().getDuration() * 1000;
if (duration != null) {
if (Math.abs(duration - pos) < 10000) {
LOG.info("Skipping restart from " + pos + " of " + duration);
onSongCompleted();
return;
}
}
LOG.info("Requesting restart from " + pos + " of " + duration);
reset();
bufferTask = new BufferTask(downloadFile, pos);
bufferTask.start();
}
}
});
if (position != 0) {
LOG.info("Restarting player from position " + position);
mediaPlayer.seekTo(position);
}
if (start) {
mediaPlayer.start();
setPlayerState(STARTED);
} else {
setPlayerState(PAUSED);
}
lifecycleSupport.serializeDownloadQueue();
} catch (Exception x) {
handleError(x);
}
}