623 lines
16 KiB
C++
623 lines
16 KiB
C++
/* This file is part of Clementine.
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "player.h"
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#include "engines/enginebase.h"
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#include "playlist/playlist.h"
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#include "playlist/playlistitem.h"
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#include "playlist/playlistmanager.h"
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#include "radio/lastfmservice.h"
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#ifdef HAVE_GSTREAMER
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# include "engines/gstengine.h"
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#endif
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#ifdef HAVE_LIBVLC
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# include "engines/vlcengine.h"
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#endif
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#ifdef HAVE_LIBXINE
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# include "engines/xine-engine.h"
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#endif
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#ifdef HAVE_QT_PHONON
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# include "engines/phononengine.h"
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#endif
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#ifdef Q_WS_X11
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# include "core/mpris_player.h"
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# include "core/mpris_tracklist.h"
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# include <QDBusConnection>
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#endif
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#include <QtDebug>
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#include <QtConcurrentRun>
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#include <boost/bind.hpp>
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using boost::shared_ptr;
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const char* Player::kRainUrl = "http://data.clementine-player.org/rainymood";
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const char* Player::kHypnotoadUrl = "http://data.clementine-player.org/hypnotoad";
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#ifdef Q_WS_X11
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QDBusArgument& operator<< (QDBusArgument& arg, const DBusStatus& status) {
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arg.beginStructure();
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arg << status.play;
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arg << status.random;
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arg << status.repeat;
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arg << status.repeat_playlist;
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arg.endStructure();
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return arg;
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}
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const QDBusArgument& operator>> (const QDBusArgument& arg, DBusStatus& status) {
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arg.beginStructure();
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arg >> status.play;
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arg >> status.random;
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arg >> status.repeat;
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arg >> status.repeat_playlist;
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arg.endStructure();
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return arg;
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}
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#endif
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Player::Player(PlaylistManager* playlists, LastFMService* lastfm,
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Engine::Type engine, QObject* parent)
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: QObject(parent),
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playlists_(playlists),
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lastfm_(lastfm),
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engine_(CreateEngine(engine)),
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stream_change_type_(Engine::First),
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rain_stream_(-1),
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toad_stream_(-1)
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{
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settings_.beginGroup("Player");
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SetVolume(settings_.value("volume", 50).toInt());
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connect(engine_.get(), SIGNAL(Error(QString)), SIGNAL(Error(QString)));
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// MPRIS DBus interface.
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#ifdef Q_WS_X11
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MprisPlayer* mpris = new MprisPlayer(this);
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// Hack so the next registerObject() doesn't override this one.
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QDBusConnection::sessionBus().registerObject(
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"/Player", mpris, QDBusConnection::ExportAllSlots | QDBusConnection::ExportAllSignals);
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new MprisTrackList(this);
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QDBusConnection::sessionBus().registerObject("/TrackList", this);
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#endif
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}
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Player::~Player() {
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}
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EngineBase* Player::CreateEngine(Engine::Type engine) {
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switch(engine) {
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#ifdef HAVE_GSTREAMER
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case Engine::Type_GStreamer:
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return new GstEngine();
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break;
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#endif
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#ifdef HAVE_LIBVLC
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case Engine::Type_VLC:
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return new VlcEngine();
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break;
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#endif
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#ifdef HAVE_LIBXINE
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case Engine::Type_Xine:
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return new XineEngine();
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break;
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#endif
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#ifdef HAVE_QT_PHONON
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case Engine::Type_QtPhonon:
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return new PhononEngine();
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break;
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#endif
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default:
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qFatal("Selected engine not compiled in");
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break;
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}
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/* NOT REACHED */
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return NULL;
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}
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void Player::Init() {
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if (!engine_->Init())
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qFatal("Error initialising audio engine");
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connect(engine_.get(), SIGNAL(StateChanged(Engine::State)), SLOT(EngineStateChanged(Engine::State)));
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connect(engine_.get(), SIGNAL(TrackAboutToEnd()), SLOT(TrackAboutToEnd()));
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connect(engine_.get(), SIGNAL(TrackEnded()), SLOT(TrackEnded()));
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connect(engine_.get(), SIGNAL(MetaData(Engine::SimpleMetaBundle)),
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SLOT(EngineMetadataReceived(Engine::SimpleMetaBundle)));
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engine_->SetVolume(settings_.value("volume", 50).toInt());
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}
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void Player::ReloadSettings() {
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engine_->ReloadSettings();
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}
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void Player::HandleSpecialLoad(const PlaylistItem::SpecialLoadResult &result) {
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switch (result.type_) {
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case PlaylistItem::SpecialLoadResult::NoMoreTracks:
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loading_async_ = QUrl();
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NextItem(Engine::Auto);
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break;
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case PlaylistItem::SpecialLoadResult::TrackAvailable: {
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// Might've been an async load, so check we're still on the same item
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int current_index = playlists_->active()->current_index();
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if (current_index == -1)
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return;
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shared_ptr<PlaylistItem> item = playlists_->active()->item_at(current_index);
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if (!item || item->Url() != result.original_url_)
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return;
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engine_->Play(result.media_url_, stream_change_type_);
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current_item_ = item;
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loading_async_ = QUrl();
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break;
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}
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case PlaylistItem::SpecialLoadResult::WillLoadAsynchronously:
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// We'll get called again later with either NoMoreTracks or TrackAvailable
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loading_async_ = result.original_url_;
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break;
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}
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}
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void Player::Next() {
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NextInternal(Engine::Manual);
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}
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void Player::NextInternal(Engine::TrackChangeType change) {
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if (playlists_->active()->current_item() &&
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playlists_->active()->current_item()->options() & PlaylistItem::ContainsMultipleTracks) {
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// The next track is already being loaded
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if (playlists_->active()->current_item()->Url() == loading_async_)
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return;
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stream_change_type_ = change;
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HandleSpecialLoad(playlists_->active()->current_item()->LoadNext());
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return;
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}
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NextItem(change);
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}
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void Player::NextItem(Engine::TrackChangeType change) {
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int i = playlists_->active()->next_index();
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playlists_->active()->set_current_index(i);
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if (i == -1) {
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emit PlaylistFinished();
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Stop();
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return;
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}
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PlayAt(i, change, false);
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}
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void Player::TrackEnded() {
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if (playlists_->active()->stop_after_current()) {
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Stop();
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return;
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}
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NextInternal(Engine::Auto);
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}
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void Player::PlayPause() {
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switch (engine_->state()) {
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case Engine::Paused:
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engine_->Unpause();
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break;
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case Engine::Playing: {
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// We really shouldn't pause last.fm streams
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// Stopping seems like a reasonable thing to do (especially on mac where there
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// is no media key for stop).
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if (current_item_->options() & PlaylistItem::PauseDisabled) {
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engine_->Stop();
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} else {
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engine_->Pause();
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}
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break;
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}
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case Engine::Empty:
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case Engine::Idle: {
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playlists_->SetActivePlaylist(playlists_->current_id());
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if (playlists_->active()->rowCount() == 0)
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break;
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int i = playlists_->active()->current_index();
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if (i == -1) i = playlists_->active()->last_played_index();
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if (i == -1) i = 0;
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PlayAt(i, Engine::First, true);
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break;
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}
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}
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}
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void Player::Stop() {
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engine_->Stop();
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playlists_->active()->set_current_index(-1);
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current_item_.reset();
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}
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void Player::Previous() {
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int i = playlists_->active()->previous_index();
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playlists_->active()->set_current_index(i);
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if (i == -1) {
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Stop();
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return;
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}
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PlayAt(i, Engine::Manual, false);
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}
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void Player::EngineStateChanged(Engine::State state) {
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switch (state) {
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case Engine::Paused: emit Paused(); break;
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case Engine::Playing: emit Playing(); break;
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case Engine::Empty:
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case Engine::Idle: emit Stopped(); break;
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}
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emit StatusChange(GetStatus());
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emit CapsChange(GetCaps());
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}
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void Player::SetVolume(int value) {
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int old_volume = engine_->volume();
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int volume = qBound(0, value, 100);
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settings_.setValue("volume", volume);
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engine_->SetVolume(volume);
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if (volume != old_volume)
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emit VolumeChanged(volume);
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}
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int Player::GetVolume() const {
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return engine_->volume();
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}
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Engine::State Player::GetState() const {
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return engine_->state();
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}
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void Player::PlayAt(int index, Engine::TrackChangeType change, bool reshuffle) {
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if (reshuffle)
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playlists_->active()->set_current_index(-1);
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playlists_->active()->set_current_index(index);
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current_item_ = playlists_->active()->item_at(index);
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if (current_item_->options() & PlaylistItem::SpecialPlayBehaviour) {
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// It's already loading
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if (current_item_->Url() == loading_async_)
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return;
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stream_change_type_ = change;
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HandleSpecialLoad(current_item_->StartLoading());
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}
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else {
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loading_async_ = QUrl();
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engine_->Play(current_item_->Url(), change);
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if (lastfm_->IsScrobblingEnabled())
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lastfm_->NowPlaying(current_item_->Metadata());
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}
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emit CapsChange(GetCaps());
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}
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void Player::CurrentMetadataChanged(const Song &metadata) {
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lastfm_->NowPlaying(metadata);
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emit TrackChange(GetMetadata());
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}
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void Player::Seek(int seconds) {
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int msec = qBound(0, seconds * 1000, int(engine_->length()));
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engine_->Seek(msec);
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// If we seek the track we don't want to submit it to last.fm
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playlists_->active()->set_scrobbled(true);
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}
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void Player::EngineMetadataReceived(const Engine::SimpleMetaBundle& bundle) {
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shared_ptr<PlaylistItem> item = playlists_->active()->current_item();
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if (item == NULL)
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return;
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Engine::SimpleMetaBundle bundle_copy = bundle;
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// Maybe the metadata is from icycast and has "Artist - Title" shoved
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// together in the title field.
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int dash_pos = bundle_copy.title.indexOf('-');
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if (dash_pos != -1 && bundle_copy.artist.isEmpty()) {
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bundle_copy.artist = bundle_copy.title.mid(dash_pos + 1).trimmed();
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bundle_copy.title = bundle_copy.title.left(dash_pos).trimmed();
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}
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Song song = item->Metadata();
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song.MergeFromSimpleMetaBundle(bundle_copy);
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// Ignore useless metadata
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if (song.title().isEmpty() && song.artist().isEmpty())
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return;
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playlists_->active()->SetStreamMetadata(item->Url(), song);
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}
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int Player::GetCaps() const {
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int caps = CAN_HAS_TRACKLIST;
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if (current_item_) { caps |= CAN_PROVIDE_METADATA; }
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if (GetState() == Engine::Playing && current_item_->options() & PlaylistItem::PauseDisabled) {
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caps |= CAN_PAUSE;
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}
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if (GetState() == Engine::Paused) {
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caps |= CAN_PLAY;
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}
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if (GetState() != Engine::Empty && current_item_->Metadata().filetype() != Song::Type_Stream) {
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caps |= CAN_SEEK;
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}
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if (playlists_->active()->next_index() != -1 ||
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playlists_->active()->current_item_options() & PlaylistItem::ContainsMultipleTracks) {
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caps |= CAN_GO_NEXT;
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}
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if (playlists_->active()->previous_index() != -1) {
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caps |= CAN_GO_PREV;
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}
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return caps;
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}
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DBusStatus Player::GetStatus() const {
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DBusStatus status;
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switch (GetState()) {
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case Engine::Empty:
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case Engine::Idle:
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status.play = DBusStatus::Mpris_Stopped;
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break;
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case Engine::Playing:
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status.play = DBusStatus::Mpris_Playing;
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break;
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case Engine::Paused:
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status.play = DBusStatus::Mpris_Paused;
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break;
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}
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status.random = playlists_->sequence()->shuffle_mode() == PlaylistSequence::Shuffle_Off ? 0 : 1;
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PlaylistSequence::RepeatMode repeat_mode = playlists_->sequence()->repeat_mode();
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status.repeat = repeat_mode == PlaylistSequence::Repeat_Track ? 1 : 0;
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status.repeat_playlist = (repeat_mode == PlaylistSequence::Repeat_Album ||
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repeat_mode == PlaylistSequence::Repeat_Playlist) ? 1 : 0;
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return status;
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}
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namespace {
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inline void AddMetadata(const QString& key, const QString& metadata, QVariantMap* map) {
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if (!metadata.isEmpty()) {
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(*map)[key] = metadata;
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}
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}
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inline void AddMetadata(const QString& key, int metadata, QVariantMap* map) {
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if (metadata > 0) {
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(*map)[key] = metadata;
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}
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}
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} // namespace
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QVariantMap Player::GetMetadata(const PlaylistItem& item) const {
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QVariantMap ret;
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const Song& song = item.Metadata();
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AddMetadata("location", item.Url().toString(), &ret);
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AddMetadata("title", song.PrettyTitle(), &ret);
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AddMetadata("artist", song.artist(), &ret);
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AddMetadata("album", song.album(), &ret);
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AddMetadata("time", song.length(), &ret);
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AddMetadata("tracknumber", song.track(), &ret);
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return ret;
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}
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QVariantMap Player::GetMetadata() const {
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shared_ptr<PlaylistItem> item = playlists_->active()->current_item();
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if (item) {
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return GetMetadata(*item);
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}
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return QVariantMap();
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}
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QVariantMap Player::GetMetadata(int track) const {
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if (track >= playlists_->active()->rowCount() || track < 0) {
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return QVariantMap();
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}
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const PlaylistItem& item = *(playlists_->active()->item_at(track));
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return GetMetadata(item);
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}
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void Player::Mute() {
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SetVolume(0);
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}
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void Player::Pause() {
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switch (GetState()) {
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case Engine::Playing:
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engine_->Pause();
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break;
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case Engine::Paused:
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engine_->Unpause();
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break;
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default:
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return;
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}
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}
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void Player::Play() {
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switch (GetState()) {
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case Engine::Playing:
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Seek(0);
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break;
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case Engine::Paused:
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engine_->Unpause();
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break;
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default:
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PlayPause();
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break;
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}
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}
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void Player::Prev() {
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Previous();
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}
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int Player::PositionGet() const {
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return engine_->position();
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}
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void Player::PositionSet(int x) {
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Seek(x / 1000);
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}
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void Player::Repeat(bool enable) {
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playlists_->sequence()->SetRepeatMode(
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enable ? PlaylistSequence::Repeat_Track : PlaylistSequence::Repeat_Off);
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}
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void Player::ShowOSD() {
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if (current_item_)
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emit ForceShowOSD(current_item_->Metadata());
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}
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void Player::VolumeDown(int change) {
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SetVolume(GetVolume() - change);
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}
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void Player::VolumeUp(int change) {
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SetVolume(GetVolume() + change);
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}
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int Player::VolumeGet() const {
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return GetVolume();
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}
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void Player::VolumeSet(int volume) {
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SetVolume(volume);
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}
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int Player::AddTrack(const QString& track, bool play_now) {
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playlists_->active()->InsertUrls(QList<QUrl>() << QUrl(track), play_now);
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return 0;
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}
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void Player::DelTrack(int index) {
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playlists_->active()->removeRows(index, 1);
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}
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int Player::GetCurrentTrack() const {
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return playlists_->active()->current_index();
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}
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int Player::GetLength() const {
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return playlists_->active()->rowCount();
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}
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void Player::SetLoop(bool enable) {
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playlists_->active()->sequence()->SetRepeatMode(
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enable ? PlaylistSequence::Repeat_Playlist : PlaylistSequence::Repeat_Off);
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}
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void Player::SetRandom(bool enable) {
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playlists_->active()->sequence()->SetShuffleMode(
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enable ? PlaylistSequence::Shuffle_All : PlaylistSequence::Shuffle_Off);
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}
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void Player::PlayTrack(int index) {
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PlayAt(index, Engine::Manual, true);
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}
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void Player::PlaylistChanged() {
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emit TrackListChange(GetLength());
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}
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void Player::TrackAboutToEnd() {
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if (engine_->is_autocrossfade_enabled()) {
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// Crossfade is on, so just start playing the next track. The current one
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// will fade out, and the new one will fade in
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NextInternal(Engine::Auto);
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} else {
|
|
// Crossfade is off, so start preloading the next track so we don't get a
|
|
// gap between songs.
|
|
if (current_item_->options() & PlaylistItem::ContainsMultipleTracks)
|
|
return;
|
|
if (playlists_->active()->next_index() == -1)
|
|
return;
|
|
|
|
shared_ptr<PlaylistItem> item = playlists_->active()->item_at(
|
|
playlists_->active()->next_index());
|
|
if (!item)
|
|
return;
|
|
|
|
QUrl url = item->Url();
|
|
|
|
// Get the actual track URL rather than the stream URL.
|
|
if (item->options() & PlaylistItem::ContainsMultipleTracks) {
|
|
PlaylistItem::SpecialLoadResult result = item->LoadNext();
|
|
switch (result.type_) {
|
|
case PlaylistItem::SpecialLoadResult::NoMoreTracks:
|
|
return;
|
|
|
|
case PlaylistItem::SpecialLoadResult::WillLoadAsynchronously:
|
|
loading_async_ = item->Url();
|
|
return;
|
|
|
|
case PlaylistItem::SpecialLoadResult::TrackAvailable:
|
|
url = result.media_url_;
|
|
break;
|
|
}
|
|
}
|
|
engine_->StartPreloading(url);
|
|
}
|
|
}
|
|
|
|
void Player::MakeItRain(bool rain) {
|
|
const bool is_raining = rain_stream_ != -1;
|
|
if (rain && !is_raining) {
|
|
rain_stream_ = engine_->AddBackgroundStream(QUrl(kRainUrl));
|
|
}
|
|
if (!rain && is_raining) {
|
|
engine_->StopBackgroundStream(rain_stream_);
|
|
rain_stream_ = -1;
|
|
}
|
|
}
|
|
|
|
void Player::AllHail(bool hypnotoad) {
|
|
const bool is_hailing = toad_stream_ != -1;
|
|
if (hypnotoad && !is_hailing) {
|
|
toad_stream_ = engine_->AddBackgroundStream(QUrl(kHypnotoadUrl));
|
|
}
|
|
if (!hypnotoad && is_hailing) {
|
|
engine_->StopBackgroundStream(toad_stream_);
|
|
toad_stream_ = -1;
|
|
}
|
|
}
|