svcore
1.9
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#include <MIDIFileReader.h>
Public Member Functions | |
MIDIFileReader (QString path, MIDIFileImportPreferenceAcquirer *pref, int mainModelSampleRate) | |
virtual | ~MIDIFileReader () |
virtual bool | isOK () const |
Return true if the file appears to be of the correct type. | |
virtual QString | getError () const |
virtual Model * | load () const |
Read the file and return the corresponding data model. | |
Protected Types | |
enum | MIDIFileFormatType { MIDI_SINGLE_TRACK_FILE = 0x00, MIDI_SIMULTANEOUS_TRACK_FILE = 0x01, MIDI_SEQUENTIAL_TRACK_FILE = 0x02, MIDI_FILE_BAD_FORMAT = 0xFF } |
typedef std::vector< MIDIEvent * > | MIDITrack |
typedef std::map< unsigned int, MIDITrack > | MIDIComposition |
typedef std::pair< RealTime, double > | TempoChange |
typedef std::map< unsigned long, TempoChange > | TempoMap |
Protected Member Functions | |
bool | parseFile () |
bool | parseHeader (const std::string &midiHeader) |
bool | parseTrack (unsigned int &trackNum) |
Model * | loadTrack (unsigned int trackNum, Model *existingModel=0, int minProgress=0, int progressAmount=100) const |
bool | consolidateNoteOffEvents (unsigned int track) |
void | updateTempoMap (unsigned int track) |
void | calculateTempoTimestamps () |
RealTime | getTimeForMIDITime (unsigned long midiTime) const |
int | midiBytesToInt (const std::string &bytes) |
long | midiBytesToLong (const std::string &bytes) |
long | getNumberFromMIDIBytes (int firstByte=-1) |
MIDIByte | getMIDIByte () |
std::string | getMIDIBytes (unsigned long bytes) |
bool | skipToNextTrack () |
Protected Attributes | |
bool | m_smpte |
int | m_timingDivision |
int | m_fps |
int | m_subframes |
MIDIFileFormatType | m_format |
unsigned int | m_numberOfTracks |
long | m_trackByteCount |
bool | m_decrementCount |
std::map< int, QString > | m_trackNames |
std::set< unsigned int > | m_loadableTracks |
std::set< unsigned int > | m_percussionTracks |
MIDIComposition | m_midiComposition |
TempoMap | m_tempoMap |
QString | m_path |
std::ifstream * | m_midiFile |
int | m_fileSize |
QString | m_error |
int | m_mainModelSampleRate |
MIDIFileImportPreferenceAcquirer * | m_acquirer |
Definition at line 58 of file MIDIFileReader.h.
typedef std::vector<MIDIEvent *> MIDIFileReader::MIDITrack [protected] |
Definition at line 73 of file MIDIFileReader.h.
typedef std::map<unsigned int, MIDITrack> MIDIFileReader::MIDIComposition [protected] |
Definition at line 74 of file MIDIFileReader.h.
typedef std::pair<RealTime, double> MIDIFileReader::TempoChange [protected] |
Definition at line 75 of file MIDIFileReader.h.
typedef std::map<unsigned long, TempoChange> MIDIFileReader::TempoMap [protected] |
Definition at line 76 of file MIDIFileReader.h.
enum MIDIFileReader::MIDIFileFormatType [protected] |
MIDI_SINGLE_TRACK_FILE | |
MIDI_SIMULTANEOUS_TRACK_FILE | |
MIDI_SEQUENTIAL_TRACK_FILE | |
MIDI_FILE_BAD_FORMAT |
Definition at line 78 of file MIDIFileReader.h.
MIDIFileReader::MIDIFileReader | ( | QString | path, |
MIDIFileImportPreferenceAcquirer * | pref, | ||
int | mainModelSampleRate | ||
) |
Definition at line 58 of file MIDIFileReader.cpp.
References m_error, and parseFile().
MIDIFileReader::~MIDIFileReader | ( | ) | [virtual] |
Definition at line 80 of file MIDIFileReader.cpp.
References m_midiComposition.
bool MIDIFileReader::isOK | ( | ) | const [virtual] |
Return true if the file appears to be of the correct type.
The DataFileReader will be constructed by passing a file path to its constructor. If the file can at that time be determined to be not of a type that this reader can read, it should return false in response to any subsequent call to isOK().
If the file is apparently of the correct type, isOK() should return true; if it turns out that the file cannot after all be read (because it's corrupted or the detection misfired), then the read() function may return NULL.
Implements DataFileReader.
Definition at line 97 of file MIDIFileReader.cpp.
References m_error.
Referenced by load().
QString MIDIFileReader::getError | ( | ) | const [virtual] |
Reimplemented from DataFileReader.
Definition at line 103 of file MIDIFileReader.cpp.
References m_error.
Model * MIDIFileReader::load | ( | ) | const [virtual] |
Read the file and return the corresponding data model.
This function is not expected to be thread-safe or reentrant. This function may be interactive (i.e. it's permitted to pop up dialogs and windows and ask the user to specify any details that can't be automatically extracted from the file).
Return NULL if the file cannot be parsed at all (although it's preferable to return a partial model and warn the user).
Caller owns the returned model and must delete it after use.
Implements DataFileReader.
Definition at line 798 of file MIDIFileReader.cpp.
References MIDIFileImportPreferenceAcquirer::getTrackImportPreference(), MIDIFileImportPreferenceAcquirer::ImportNothing, isOK(), loadTrack(), m_acquirer, m_loadableTracks, m_path, m_percussionTracks, m_trackNames, MIDIFileImportPreferenceAcquirer::MergeAllNonPercussionTracks, MIDIFileImportPreferenceAcquirer::MergeAllTracks, and MIDIFileImportPreferenceAcquirer::showError().
bool MIDIFileReader::parseFile | ( | ) | [protected] |
Definition at line 276 of file MIDIFileReader.cpp.
References calculateTempoTimestamps(), consolidateNoteOffEvents(), getMIDIBytes(), m_error, m_fileSize, m_format, m_loadableTracks, m_midiComposition, m_midiFile, m_numberOfTracks, m_path, m_trackByteCount, MIDI_FILE_BAD_FORMAT, parseHeader(), parseTrack(), skipToNextTrack(), SVDEBUG, updateTempoMap(), and MIDIException::what().
Referenced by MIDIFileReader().
bool MIDIFileReader::parseHeader | ( | const std::string & | midiHeader | ) | [protected] |
Definition at line 391 of file MIDIFileReader.cpp.
References m_format, m_fps, m_numberOfTracks, m_smpte, m_subframes, m_timingDivision, MIDIConstants::MIDI_FILE_HEADER, midiBytesToInt(), midiBytesToLong(), and SVDEBUG.
Referenced by parseFile().
bool MIDIFileReader::parseTrack | ( | unsigned int & | trackNum | ) | [protected] |
Definition at line 437 of file MIDIFileReader.cpp.
References MIDIEvent::getChannelNumber(), getMIDIByte(), getMIDIBytes(), getNumberFromMIDIBytes(), m_midiComposition, m_midiFile, m_percussionTracks, m_trackByteCount, m_trackNames, MIDIConstants::MIDI_CHANNEL_NUM_MASK, MIDIConstants::MIDI_CHNL_AFTERTOUCH, MIDIConstants::MIDI_CTRL_CHANGE, MIDIConstants::MIDI_END_OF_EXCLUSIVE, MIDIConstants::MIDI_FILE_META_EVENT, MIDIConstants::MIDI_MESSAGE_TYPE_MASK, MIDIConstants::MIDI_NOTE_OFF, MIDIConstants::MIDI_NOTE_ON, MIDIConstants::MIDI_PERCUSSION_CHANNEL, MIDIConstants::MIDI_PITCH_BEND, MIDIConstants::MIDI_POLY_AFTERTOUCH, MIDIConstants::MIDI_PROG_CHANGE, MIDIConstants::MIDI_STATUS_BYTE_MASK, MIDIConstants::MIDI_SYSTEM_EXCLUSIVE, MIDIConstants::MIDI_TRACK_NAME, and SVDEBUG.
Referenced by parseFile().
Model * MIDIFileReader::loadTrack | ( | unsigned int | trackNum, |
Model * | existingModel = 0 , |
||
int | minProgress = 0 , |
||
int | progressAmount = 100 |
||
) | const [protected] |
Definition at line 914 of file MIDIFileReader.cpp.
References SparseValueModel< PointType >::addPoint(), RealTime::frame2RealTime(), Pitch::getPitchLabel(), SparseModel< PointType >::getSampleRate(), getTimeForMIDITime(), m_fps, m_mainModelSampleRate, m_midiComposition, m_smpte, m_subframes, MIDIConstants::MIDI_CHANNEL_PREFIX, MIDIConstants::MIDI_CHANNEL_PREFIX_OR_PORT, MIDIConstants::MIDI_CHNL_AFTERTOUCH, MIDIConstants::MIDI_COPYRIGHT_NOTICE, MIDIConstants::MIDI_CTRL_CHANGE, MIDIConstants::MIDI_CUE_POINT, MIDIConstants::MIDI_INSTRUMENT_NAME, MIDIConstants::MIDI_KEY_SIGNATURE, MIDIConstants::MIDI_LYRIC, MIDIConstants::MIDI_NOTE_OFF, MIDIConstants::MIDI_NOTE_ON, MIDIConstants::MIDI_PITCH_BEND, MIDIConstants::MIDI_POLY_AFTERTOUCH, MIDIConstants::MIDI_PROG_CHANGE, MIDIConstants::MIDI_SEQUENCE_NUMBER, MIDIConstants::MIDI_SEQUENCER_SPECIFIC, MIDIConstants::MIDI_SET_TEMPO, MIDIConstants::MIDI_SMPTE_OFFSET, MIDIConstants::MIDI_SYSTEM_EXCLUSIVE, MIDIConstants::MIDI_TEXT_EVENT, MIDIConstants::MIDI_TEXT_MARKER, MIDIConstants::MIDI_TIME_SIGNATURE, MIDIConstants::MIDI_TRACK_NAME, RealTime::realTime2Frame(), SparseModel< PointType >::setCompletion(), and NoteModel::setValueQuantization().
Referenced by load().
bool MIDIFileReader::consolidateNoteOffEvents | ( | unsigned int | track | ) | [protected] |
Definition at line 658 of file MIDIFileReader.cpp.
References m_midiComposition, MIDIConstants::MIDI_NOTE_OFF, and MIDIConstants::MIDI_NOTE_ON.
Referenced by parseFile().
void MIDIFileReader::updateTempoMap | ( | unsigned int | track | ) | [protected] |
Definition at line 707 of file MIDIFileReader.cpp.
References m_midiComposition, m_tempoMap, MIDIConstants::MIDI_SET_TEMPO, and RealTime::zeroTime.
Referenced by parseFile().
void MIDIFileReader::calculateTempoTimestamps | ( | ) | [protected] |
Definition at line 735 of file MIDIFileReader.cpp.
References RealTime::fromSeconds(), m_tempoMap, m_timingDivision, and RealTime::zeroTime.
Referenced by parseFile().
RealTime MIDIFileReader::getTimeForMIDITime | ( | unsigned long | midiTime | ) | const [protected] |
Definition at line 761 of file MIDIFileReader.cpp.
References RealTime::fromSeconds(), m_tempoMap, m_timingDivision, and RealTime::zeroTime.
Referenced by loadTrack().
int MIDIFileReader::midiBytesToInt | ( | const std::string & | bytes | ) | [protected] |
Definition at line 124 of file MIDIFileReader.cpp.
Referenced by parseHeader().
long MIDIFileReader::midiBytesToLong | ( | const std::string & | bytes | ) | [protected] |
Definition at line 109 of file MIDIFileReader.cpp.
Referenced by parseHeader(), and skipToNextTrack().
long MIDIFileReader::getNumberFromMIDIBytes | ( | int | firstByte = -1 | ) | [protected] |
Definition at line 211 of file MIDIFileReader.cpp.
References getMIDIByte(), and m_midiFile.
Referenced by parseTrack().
MIDIByte MIDIFileReader::getMIDIByte | ( | ) | [protected] |
Definition at line 141 of file MIDIFileReader.cpp.
References m_decrementCount, m_midiFile, and m_trackByteCount.
Referenced by getNumberFromMIDIBytes(), and parseTrack().
string MIDIFileReader::getMIDIBytes | ( | unsigned long | bytes | ) | [protected] |
Definition at line 170 of file MIDIFileReader.cpp.
References m_decrementCount, m_midiFile, and m_trackByteCount.
Referenced by parseFile(), parseTrack(), and skipToNextTrack().
bool MIDIFileReader::skipToNextTrack | ( | ) | [protected] |
Definition at line 245 of file MIDIFileReader.cpp.
References getMIDIBytes(), m_decrementCount, m_midiFile, m_trackByteCount, MIDIConstants::MIDI_TRACK_HEADER, and midiBytesToLong().
Referenced by parseFile().
bool MIDIFileReader::m_smpte [protected] |
Definition at line 111 of file MIDIFileReader.h.
Referenced by loadTrack(), and parseHeader().
int MIDIFileReader::m_timingDivision [protected] |
Definition at line 112 of file MIDIFileReader.h.
Referenced by calculateTempoTimestamps(), getTimeForMIDITime(), and parseHeader().
int MIDIFileReader::m_fps [protected] |
Definition at line 113 of file MIDIFileReader.h.
Referenced by loadTrack(), and parseHeader().
int MIDIFileReader::m_subframes [protected] |
Definition at line 114 of file MIDIFileReader.h.
Referenced by loadTrack(), and parseHeader().
MIDIFileFormatType MIDIFileReader::m_format [protected] |
Definition at line 115 of file MIDIFileReader.h.
Referenced by parseFile(), and parseHeader().
unsigned int MIDIFileReader::m_numberOfTracks [protected] |
Definition at line 116 of file MIDIFileReader.h.
Referenced by parseFile(), and parseHeader().
long MIDIFileReader::m_trackByteCount [protected] |
Definition at line 118 of file MIDIFileReader.h.
Referenced by getMIDIByte(), getMIDIBytes(), parseFile(), parseTrack(), and skipToNextTrack().
bool MIDIFileReader::m_decrementCount [protected] |
Definition at line 119 of file MIDIFileReader.h.
Referenced by getMIDIByte(), getMIDIBytes(), and skipToNextTrack().
std::map<int, QString> MIDIFileReader::m_trackNames [protected] |
Definition at line 121 of file MIDIFileReader.h.
Referenced by load(), and parseTrack().
std::set<unsigned int> MIDIFileReader::m_loadableTracks [protected] |
Definition at line 122 of file MIDIFileReader.h.
Referenced by load(), and parseFile().
std::set<unsigned int> MIDIFileReader::m_percussionTracks [protected] |
Definition at line 123 of file MIDIFileReader.h.
Referenced by load(), and parseTrack().
MIDIComposition MIDIFileReader::m_midiComposition [protected] |
Definition at line 124 of file MIDIFileReader.h.
Referenced by consolidateNoteOffEvents(), loadTrack(), parseFile(), parseTrack(), updateTempoMap(), and ~MIDIFileReader().
TempoMap MIDIFileReader::m_tempoMap [protected] |
Definition at line 125 of file MIDIFileReader.h.
Referenced by calculateTempoTimestamps(), getTimeForMIDITime(), and updateTempoMap().
QString MIDIFileReader::m_path [protected] |
Definition at line 127 of file MIDIFileReader.h.
Referenced by load(), and parseFile().
std::ifstream* MIDIFileReader::m_midiFile [protected] |
Definition at line 128 of file MIDIFileReader.h.
Referenced by getMIDIByte(), getMIDIBytes(), getNumberFromMIDIBytes(), parseFile(), parseTrack(), and skipToNextTrack().
int MIDIFileReader::m_fileSize [protected] |
Definition at line 129 of file MIDIFileReader.h.
Referenced by parseFile().
QString MIDIFileReader::m_error [protected] |
Definition at line 130 of file MIDIFileReader.h.
Referenced by getError(), isOK(), MIDIFileReader(), and parseFile().
int MIDIFileReader::m_mainModelSampleRate [protected] |
Definition at line 131 of file MIDIFileReader.h.
Referenced by loadTrack().
Definition at line 133 of file MIDIFileReader.h.
Referenced by load().