drumstick 2.9.0
C++ MIDI libraries using Qt objects, idioms, and style.
playsmf.cpp

SMF playback, command line interface program.

SMF playback, command line interface program

/*
Standard MIDI File player program
Copyright (C) 2006-2023, Pedro Lopez-Cabanillas <plcl@users.sf.net>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PLAYSMF_H_
#define PLAYSMF_H_
#include <QObject>
#include <QString>
#include <QList>
#include <QReadWriteLock>
#include <drumstick/qsmf.h>
class Song : public QList<drumstick::ALSA::SequencerEvent*>
{
public:
virtual ~Song();
void sort();
void clear();
};
class PlaySMF : public QObject
{
Q_OBJECT
public:
PlaySMF();
virtual ~PlaySMF();
void play(QString fileName);
bool stopped();
void stop();
void appendEvent(drumstick::ALSA::SequencerEvent* ev);
void subscribe(const QString& portName);
void dump(const QString& chan, const QString& event, const QString& data);
void dumpStr(const QString& event, const QString& data);
void shutupSound();
public Q_SLOTS:
void headerEvent(int format, int ntrks, int division);
void noteOnEvent(int chan, int pitch, int vol);
void noteOffEvent(int chan, int pitch, int vol);
void keyPressEvent(int chan, int pitch, int press);
void ctlChangeEvent(int chan, int ctl, int value);
void pitchBendEvent(int chan, int value);
void programEvent(int chan, int patch);
void chanPressEvent(int chan, int press);
void sysexEvent(const QByteArray& data);
void textEvent(int typ, const QString& data);
void tempoEvent(int tempo);
void timeSigEvent(int b0, int b1, int b2, int b3);
void keySigEvent(int b0, int b1);
void errorHandler(const QString& errorStr);
private:
int m_division;
int m_portId;
int m_queueId;
int m_initialTempo;
bool m_Stopped;
QReadWriteLock m_mutex;
Song m_song;
};
#endif /*PLAYSMF_H_*/
Classes managing ALSA Sequencer clients.
Classes managing ALSA Sequencer events.
Classes managing ALSA Sequencer ports.
Classes managing ALSA Sequencer queues.
The QObject class is the base class of all Qt objects.
Client management.
Definition: alsaclient.h:219
Port management.
Definition: alsaport.h:125
Queue management.
Definition: alsaqueue.h:201
Base class for the event's hierarchy.
Definition: alsaevent.h:68
Standard MIDI Files input/output.
Definition: qsmf.h:103
Standard MIDI Files Input/Output.
/*
Standard MIDI File player program
Copyright (C) 2006-2023, Pedro Lopez-Cabanillas <plcl@users.sf.net>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "playsmf.h"
#include <QCommandLineParser>
#include <QCoreApplication>
#include <QDebug>
#include <QFileInfo>
#include <QReadLocker>
#include <QTextStream>
#include <QWriteLocker>
#include <QtAlgorithms>
#include <csignal>
DISABLE_WARNING_PUSH
DISABLE_WARNING_DEPRECATED_DECLARATIONS
#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
#define right Qt::right
#define left Qt::left
#define endl Qt::endl
#endif
QTextStream cout(stdout, QIODevice::WriteOnly);
QTextStream cerr(stderr, QIODevice::WriteOnly);
/* ********** *
* Song class
* ********** */
using namespace drumstick;
using namespace ALSA;
using namespace File;
static inline bool eventLessThan(const SequencerEvent* s1, const SequencerEvent *s2)
{
return s1->getTick() < s2->getTick();
}
void Song::sort()
{
std::sort(begin(), end(), eventLessThan);
}
void Song::clear()
{
while (!isEmpty())
delete takeFirst();
}
Song::~Song()
{
clear();
}
/* ************* *
* PlaySMF class
* ************* */
PlaySMF::PlaySMF() :
m_division(-1),
m_portId(-1),
m_queueId(-1),
m_initialTempo(-1),
m_Stopped(true)
{
m_Client = new MidiClient(this);
m_Client->open();
m_Client->setClientName("MIDI Player");
m_Port = new MidiPort(this);
m_Port->attach( m_Client );
m_Port->setPortName("MIDI Player port");
m_Port->setCapability(SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ);
m_Port->setPortType(SND_SEQ_PORT_TYPE_APPLICATION);
m_Queue = m_Client->createQueue();
m_queueId = m_Queue->getId();
m_portId = m_Port->getPortId();
m_engine = new QSmf(this);
connect(m_engine, &QSmf::signalSMFHeader, this, &PlaySMF::headerEvent);
connect(m_engine, &QSmf::signalSMFNoteOn, this, &PlaySMF::noteOnEvent);
connect(m_engine, &QSmf::signalSMFNoteOff, this, &PlaySMF::noteOffEvent);
connect(m_engine, &QSmf::signalSMFKeyPress, this, &PlaySMF::keyPressEvent);
connect(m_engine, &QSmf::signalSMFCtlChange, this, &PlaySMF::ctlChangeEvent);
connect(m_engine, &QSmf::signalSMFPitchBend, this, &PlaySMF::pitchBendEvent);
connect(m_engine, &QSmf::signalSMFProgram, this, &PlaySMF::programEvent);
connect(m_engine, &QSmf::signalSMFChanPress, this, &PlaySMF::chanPressEvent);
connect(m_engine, &QSmf::signalSMFSysex, this, &PlaySMF::sysexEvent);
connect(m_engine, &QSmf::signalSMFText, this, &PlaySMF::textEvent);
connect(m_engine, &QSmf::signalSMFTempo, this, &PlaySMF::tempoEvent);
connect(m_engine, &QSmf::signalSMFTimeSig, this, &PlaySMF::timeSigEvent);
connect(m_engine, &QSmf::signalSMFKeySig, this, &PlaySMF::keySigEvent);
connect(m_engine, &QSmf::signalSMFError, this, &PlaySMF::errorHandler);
}
PlaySMF::~PlaySMF()
{
m_Port->detach();
m_Client->close();
}
void PlaySMF::subscribe(const QString& portName)
{
try {
qDebug() << "Trying to subscribe to " << portName.toLocal8Bit().data();
m_Port->subscribeTo(portName);
} catch (const SequencerError& err) {
cerr << "SequencerError exception. Error code: " << err.code()
<< " (" << err.qstrError() << ")" << endl;
cerr << "Location: " << err.location() << endl;
throw;
}
}
bool PlaySMF::stopped()
{
QReadLocker locker(&m_mutex);
return m_Stopped;
}
void PlaySMF::stop()
{
QWriteLocker locker(&m_mutex);
m_Stopped = true;
m_Client->dropOutput();
}
void PlaySMF::shutupSound()
{
int channel;
for (channel = 0; channel < 16; ++channel) {
ControllerEvent ev(channel, MIDI_CTL_ALL_SOUNDS_OFF, 0);
ev.setSource(static_cast<unsigned char>(m_portId));
ev.setSubscribers();
ev.setDirect();
m_Client->outputDirect(&ev);
}
m_Client->drainOutput();
}
void PlaySMF::appendEvent(SequencerEvent* ev)
{
long tick = m_engine->getCurrentTime();
ev->setSource(static_cast<unsigned char>(m_portId));
if (ev->getSequencerType() != SND_SEQ_EVENT_TEMPO) {
ev->setSubscribers();
}
ev->scheduleTick(m_queueId, static_cast<int>(tick), false);
m_song.append(ev);
}
void PlaySMF::dump(const QString& chan, const QString& event,
const QString& data)
{
cout << right << qSetFieldWidth(7) << m_engine->getCurrentTime();
cout << qSetFieldWidth(3) << chan;
cout << qSetFieldWidth(0) << left << " ";
cout << qSetFieldWidth(15) << event;
cout << qSetFieldWidth(0) << " " << data << endl;
}
void PlaySMF::dumpStr(const QString& event, const QString& data)
{
cout << right << qSetFieldWidth(7) << m_engine->getCurrentTime();
cout << qSetFieldWidth(3) << "--";
cout << qSetFieldWidth(0) << left << " ";
cout << qSetFieldWidth(15) << event;
cout << qSetFieldWidth(0) << " " << data << endl;
}
void PlaySMF::headerEvent(int format, int ntrks, int division)
{
m_division = division;
dumpStr("SMF Header", QString("Format=%1, Tracks=%2, Division=%3").
arg(format).arg(ntrks).arg(division));
}
void PlaySMF::noteOnEvent(int chan, int pitch, int vol)
{
NoteOnEvent* ev = new NoteOnEvent (chan, pitch, vol);
appendEvent(ev);
}
void PlaySMF::noteOffEvent(int chan, int pitch, int vol)
{
SequencerEvent* ev = new NoteOffEvent(chan, pitch, vol);
appendEvent(ev);
}
void PlaySMF::keyPressEvent(int chan, int pitch, int press)
{
SequencerEvent* ev = new KeyPressEvent (chan, pitch, press);
appendEvent(ev);
}
void PlaySMF::ctlChangeEvent(int chan, int ctl, int value)
{
SequencerEvent* ev = new ControllerEvent (chan, ctl, value);
appendEvent(ev);
}
void PlaySMF::pitchBendEvent(int chan, int value)
{
SequencerEvent* ev = new PitchBendEvent (chan, value);
appendEvent(ev);
}
void PlaySMF::programEvent(int chan, int patch)
{
SequencerEvent* ev = new ProgramChangeEvent (chan, patch);
appendEvent(ev);
}
void PlaySMF::chanPressEvent(int chan, int press)
{
SequencerEvent* ev = new ChanPressEvent (chan, press);
appendEvent(ev);
}
void PlaySMF::sysexEvent(const QByteArray& data)
{
SysExEvent* ev = new SysExEvent(data);
appendEvent(ev);
}
void PlaySMF::textEvent(int typ, const QString& data)
{
dumpStr(QString("Text (%1)").arg(typ), data);
}
void PlaySMF::timeSigEvent(int b0, int b1, int b2, int b3)
{
dump("--", "Time Signature", QString("%1, %2, %3, %4").arg(b0).arg(b1).arg(b2).arg(b3));
}
void PlaySMF::keySigEvent(int b0, int b1)
{
dump("--", "Key Signature", QString("%1, %2").arg(b0).arg(b1));
}
void PlaySMF::tempoEvent(int tempo)
{
if ( m_initialTempo < 0 )
{
m_initialTempo = tempo;
}
TempoEvent* ev = new TempoEvent(m_queueId, tempo);
appendEvent(ev);
}
void PlaySMF::errorHandler(const QString& errorStr)
{
cout << "*** Warning! " << errorStr
<< " at file offset " << m_engine->getFilePos()
<< endl;
}
void PlaySMF::play(QString fileName)
{
cout << "Reading song: " << fileName << endl;
cout << "___time ch event__________ data____" << endl;
m_engine->readFromFile(fileName);
m_song.sort();
m_Client->setPoolOutput(100);
QueueTempo firstTempo = m_Queue->getTempo();
firstTempo.setPPQ(m_division);
if (m_initialTempo > 0)
firstTempo.setTempo(static_cast<unsigned int>(m_initialTempo));
m_Queue->setTempo(firstTempo);
m_Client->drainOutput();
cout << "Starting playback" << endl;
cout << "Press Ctrl+C to exit" << endl;
try {
QListIterator<SequencerEvent*> i(m_song);
m_Stopped = false;
m_Queue->start();
while (!stopped() && i.hasNext()) {
//m_Client->outputDirect(i.next());
m_Client->output(i.next());
}
if (stopped()) {
m_Queue->clear();
shutupSound();
} else {
m_Client->drainOutput();
m_Client->synchronizeOutput();
}
m_Queue->stop();
} catch (const SequencerError& err) {
cerr << "SequencerError exception. Error code: " << err.code()
<< " (" << err.qstrError() << ")" << endl;
cerr << "Location: " << err.location() << endl;
throw;
}
}
static PlaySMF* player = nullptr;
void signalHandler(int sig)
{
if (sig == SIGINT)
qDebug() << "Caught a SIGINT. Exiting";
else if (sig == SIGTERM)
qDebug() << "Caught a SIGTERM. Exiting";
if (player != nullptr)
player->stop();
}
int main(int argc, char **argv)
{
const QString PGM_NAME = QStringLiteral("drumstick-playsmf");
const QString PGM_DESCRIPTION = QStringLiteral("Drumstick command line MIDI file player");
const QString ERRORSTR = QStringLiteral("Fatal error from the ALSA sequencer. "
"This usually happens when the kernel doesn't have ALSA support, "
"or the device node (/dev/snd/seq) doesn't exists, "
"or the kernel module (snd_seq) is not loaded. "
"Please check your ALSA/MIDI configuration.");
signal(SIGINT, signalHandler);
signal(SIGTERM, signalHandler);
QCoreApplication app(argc, argv);
QCoreApplication::setApplicationName(PGM_NAME);
QCoreApplication::setApplicationVersion(QStringLiteral(QT_STRINGIFY(VERSION)));
QCommandLineParser parser;
parser.setApplicationDescription(PGM_DESCRIPTION);
auto helpOption = parser.addHelpOption();
auto versionOption = parser.addVersionOption();
QCommandLineOption portOption({"p","port"}, "Destination, MIDI port.", "client:port");
parser.addOption(portOption);
parser.addPositionalArgument("file", "Input SMF File(s).", "files...");
parser.process(app);
if (parser.isSet(versionOption) || parser.isSet(helpOption)) {
return 0;
}
try {
player = new PlaySMF();
if (parser.isSet(portOption)) {
QString port = parser.value(portOption);
player->subscribe(port);
} else {
cerr << "Port argument is missing" << endl;
parser.showHelp();
}
QStringList files = parser.positionalArguments();
if (files.isEmpty()) {
cerr << "No input files" << endl;
parser.showHelp();
}
foreach(const QString& f, files) {
QFileInfo file(f);
if (file.exists())
player->play(file.canonicalFilePath());
}
} catch (const SequencerError& ex) {
cerr << ERRORSTR << " Returned error was: " << ex.qstrError() << endl;
} catch (...) {
cerr << ERRORSTR << endl;
}
delete player;
return 0;
}
DISABLE_WARNING_POP
Drumstick common.
Definition: alsaclient.cpp:68
SequencerError Exception class.