vcs.maemo.org Git - someplayer/blob - src/player/player.cpp

   1 /*
   2  * SomePlayer - An alternate music player for Maemo 5
   3  * Copyright (C) 2010 Nikolay (somebody) Tischenko <niktischenko@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "player.h"
  21 #include <phonon/MediaSource>
  22 #include <phonon/Effect>
  23 #include <phonon/BackendCapabilities>
  24 #include <phonon/EffectParameter>
  25 #include "../config.h"
  26 #include <QTime>
  27 #include <QTimer>
  28
  29 using namespace SomePlayer::Playback;
  30 using namespace SomePlayer::DataObjects;
  31 using namespace SomePlayer::Storage;
  32
  33 inline QList<Track> __sub(QList<Track> one, QList<Track> two, Track three) {
  34         QList<Track> result;
  35         foreach (Track t, one) {
  36                 if (!two.contains(t) && !(t == three)) {
  37                         result.append(t);
  38                 }
  39         }
  40         return result;
  41 }
  42
  43 Player::Player(QObject *parent) :
  44     QObject(parent)
  45 {
  46         _awaiting_seek = false;
  47         _player = new Phonon::MediaObject(this);
  48         _output = new Phonon::AudioOutput(Phonon::MusicCategory, this);
  49         _player->setTickInterval(1000);
  50         _equalizer = NULL;
  51         _equalizer_enabled = false;
  52         connect(_player, SIGNAL(stateChanged(Phonon::State,Phonon::State)), this, SLOT(_stateChanged(Phonon::State,Phonon::State)));
  53         connect(_player, SIGNAL(tick(qint64)), this, SLOT(_tick(qint64)));
  54         connect(_player, SIGNAL(finished()), this, SLOT(next()));
  55         _path = Phonon::createPath(_player, _output);
  56         QList<Phonon::EffectDescription> effects = Phonon::BackendCapabilities::availableAudioEffects();
  57         foreach (Phonon::EffectDescription desc, effects) {
  58                 if (desc.name() == "equalizer-10bands") {
  59                         _equalizer = new Phonon::Effect(desc, this);
  60                         Config config;
  61                         if (config.equalizerEnabled()) {
  62                                 for (int i = 0; i < 10; i++) {
  63                                         QVariant var = config.getEqualizerValue(QString("band%1").arg(i));
  64                                         setEqualizerValue(i, var.toDouble());
  65                                 }
  66                                 enableEqualizer();
  67                         }
  68                 }
  69         }
  70         int seed = QTime::currentTime().msec();
  71         qsrand(seed);
  72         _random = _config.getValue("playback/random").toBool();
  73         _repeat = (RepeatRule) _config.getValue("playback/repeat").toInt();
  74 }
  75
  76 void Player::setTrackId(int id) {
  77         _to_history(_track);
  78         _track = _playlist.tracks().at(id);
  79         _set_source();
  80         play();
  81 }
  82
  83 void Player::toggle() {
  84         if (_state == PLAYER_PLAYING) { // pause
  85                 _player->pause();
  86                 _state = PLAYER_PAUSED;
  87                 emit stateChanged(_state);
  88         } else { //play
  89                 play();
  90         }
  91 }
  92
  93 void Player::stop() {
  94         if (_state == PLAYER_STOPPED) {
  95                 return;
  96         }
  97         LastPlayed lp;
  98         lp.position = _player->currentTime() / 1000 - 2;
  99         lp.position = lp.position < 0 ? 0 : lp.position;
 100         lp.trackId = _playlist.tracks().indexOf(_track);
 101         lp.trackId = lp.trackId < 0 ? 0 : lp.trackId;
 102         emit saveLastPlayed(lp);
 103         _player->stop();
 104         _state = PLAYER_STOPPED;
 105         emit stateChanged(_state);
 106 }
 107
 108 void Player::next() {
 109         int count = _playlist.tracks().count();
 110         if (count == 0) {
 111                 stop(); // empty playlist
 112                 return;
 113         }
 114         if (_repeat == REPEAT_ONE) {
 115                 _set_source();
 116                 play();
 117                 return;
 118         }
 119         Track _new;
 120         while (!_queue.isEmpty()) {
 121                 _new = _queue.takeFirst();
 122                 if (_playlist.tracks().contains(_new)) {
 123                         _to_history(_track);
 124                         _track = _new;
 125                         _set_source();
 126                         play();
 127                         return;
 128                 }
 129         }
 130         if (!_random) {
 131                 int pos = _playlist.tracks().indexOf(_track) + 1;
 132                 if (pos >= _playlist.tracks().count()) {
 133                         if (_repeat == REPEAT_NO) {
 134                                 stop();
 135                         }
 136                         pos %= _playlist.tracks().count();
 137                 }
 138                 _to_history(_track);
 139                 _track = _playlist.tracks().at(pos);
 140                 _set_source();
 141                 play();
 142                 return;
 143         }
 144         // random
 145         QList<Track> sub = __sub(_playlist.tracks(), _history, _track);
 146         int size = sub.count();
 147         if (size == 0) {
 148                 _to_history(_track);
 149                 _set_source();
 150                 play();
 151                 return;
 152         }
 153         int pos = qrand() % size;
 154         _to_history(_track);
 155         _track = sub.at(pos);
 156         _set_source();
 157         play();
 158 }
 159
 160 void Player::_set_source() {
 161         _player->setCurrentSource(Phonon::MediaSource(_track.source()));
 162         emit trackChanged(_track);
 163 }
 164
 165 void Player::prev() {
 166         if (_history.isEmpty()) {
 167                 _set_source();
 168                 play();
 169                 return;
 170         }
 171         _queue.push_front(_track);
 172         _track = _history.takeFirst();
 173         _set_source();
 174         play();
 175 }
 176
 177 void Player::_stateChanged(Phonon::State newState, Phonon::State /*oldState*/) {
 178         switch (newState) {
 179         case Phonon::PlayingState:
 180                 _state = PLAYER_PLAYING;
 181                 emit stateChanged(_state);
 182                 if (_awaiting_seek) {
 183                         _awaiting_seek = false;
 184                         seek(_awaiting_seek_pos);
 185                 }
 186                 break;
 187         case Phonon::ErrorState:
 188                 play(); // force
 189                 break;
 190         default:
 191                 break;
 192         }
 193 }
 194
 195 void Player::_tick(qint64 ticks) {
 196         int done = ticks/1000;
 197         int all = _track.metadata().length();
 198         emit tick(done, all);
 199         if (done+2 == all) {
 200                 _track.setCount(_track.count()+1);
 201                 emit trackDone(_track);
 202         }
 203 }
 204
 205 void Player::setPlaylist(Playlist playlist) {
 206         _playlist = playlist;
 207         _truncate_history();
 208 }
 209
 210 void Player::seek(int s) {
 211         _player->seek(s*1000);
 212         if (s >= _track.metadata().length()) {
 213                 next();
 214         }
 215 }
 216
 217 void Player::play() {
 218         if (_playlist.tracks().isEmpty())
 219                 return;
 220         if (_track.source().isEmpty()) {
 221                 emit startPlaylist();
 222                 return;
 223         }
 224         _state = PLAYER_PLAYING;
 225         emit stateChanged(_state);
 226         _player->play();
 227 }
 228
 229 void Player::enqueue(int id) {
 230         _queue.push_back(_playlist.tracks().at(id));
 231 }
 232
 233 void Player::toggleRandom() {
 234         _random = !_random;
 235         _config.setValue("playback/random", _random);
 236 }
 237
 238 void Player::toggleRepeat() {
 239         if (_repeat == REPEAT_NO) {
 240                 _repeat = REPEAT_ALL;
 241         } else if (_repeat == REPEAT_ALL) {
 242                 _repeat = REPEAT_ONE;
 243         } else if (_repeat == REPEAT_ONE) {
 244                 _repeat = REPEAT_NO;
 245         }
 246         _config.setValue("playback/repeat", _repeat);
 247 }
 248
 249 void Player::equalizerValue(int band, double *val) {
 250         if (_equalizer == NULL) {
 251                 *val = 0;
 252                 return;
 253         }
 254         if (band < 0 || band > 9) {
 255                 *val = -24;
 256                 return;
 257         }
 258         if (_equalizer_enabled) {
 259                 QList<Phonon::EffectParameter> plist = _equalizer->parameters();
 260                 QVariant var = _equalizer->parameterValue(plist[band]);
 261                 *val = var.toDouble();
 262         }
 263 }
 264
 265 void Player::enableEqualizer() {
 266         if (_equalizer == NULL)
 267                 return;
 268         _equalizer_enabled = true;
 269         _path.insertEffect(_equalizer);
 270         Config config;
 271         config.setEqualizerEnabled(true);
 272 }
 273
 274 void Player::disableEqualizer() {
 275         if (_equalizer == NULL)
 276                 return;
 277         _equalizer_enabled = false;
 278         _path.removeEffect(_equalizer);
 279         Config config;
 280         config.setEqualizerEnabled(false);
 281 }
 282
 283 void Player::setEqualizerValue(int band, double value) {
 284         if (_equalizer == NULL)
 285                 return;
 286         if (band < 0 || band > 9 || value < -24 || value > 12) {
 287                 return;
 288         }
 289         QList<Phonon::EffectParameter> plist = _equalizer->parameters();
 290         _equalizer->setParameterValue(plist[band], QVariant::fromValue(value));
 291         Config config;
 292         config.setEqualizerValue(QString("band%1").arg(band), value);
 293 }
 294
 295 QString Player::artist() {
 296         return _track.metadata().artist();
 297 }
 298
 299 QString Player::album() {
 300         return _track.metadata().album();
 301 }
 302
 303 QString Player::title() {
 304         return _track.metadata().title();
 305 }
 306
 307 Track Player::current() {
 308         return _track;
 309 }
 310
 311 void Player::pause() {
 312         if (_state == PLAYER_PLAYING) {
 313                 _player->pause();
 314                 _state = PLAYER_PAUSED;
 315                 emit stateChanged(_state);
 316         }
 317 }
 318
 319 void Player::playIfPaused() {
 320         if (_state == PLAYER_PAUSED) {
 321                 play();
 322         }
 323 }
 324
 325 void Player::_to_history(Track t) {
 326         if (!t.source().isEmpty()) {
 327                 _history.push_front(t);
 328         }
 329         _truncate_history();
 330         foreach (Track t, _history) {
 331         }
 332 }
 333
 334 void Player::_truncate_history() {
 335         while (_history.size() > 50 || _history.size() > _playlist.tracks().size()/2) {
 336                 _history.removeLast();
 337         }
 338 }
 339
 340 Player::~Player() {
 341         stop();
 342 }