A sequence of timestamped midi messages. More...
Classes | |
| class | MidiEventHolder |
| Structure used to hold midi events in the sequence. More... | |
Public Member Functions | |
| MidiMessageSequence () | |
| Creates an empty midi sequence object. | |
| MidiMessageSequence (const MidiMessageSequence &other) | |
| Creates a copy of another sequence. | |
| MidiMessageSequence & | operator= (const MidiMessageSequence &other) |
| Replaces this sequence with another one. | |
| ~MidiMessageSequence () | |
| Destructor. | |
| void | clear () |
| Clears the sequence. | |
| int | getNumEvents () const |
| Returns the number of events in the sequence. | |
| MidiEventHolder * | getEventPointer (int index) const |
| Returns a pointer to one of the events. | |
| double | getTimeOfMatchingKeyUp (int index) const |
| Returns the time of the note-up that matches the note-on at this index. | |
| int | getIndexOfMatchingKeyUp (int index) const |
| Returns the index of the note-up that matches the note-on at this index. | |
| int | getIndexOf (MidiEventHolder *event) const |
| Returns the index of an event. | |
| int | getNextIndexAtTime (double timeStamp) const |
| Returns the index of the first event on or after the given timestamp. | |
| double | getStartTime () const |
| Returns the timestamp of the first event in the sequence. | |
| double | getEndTime () const |
| Returns the timestamp of the last event in the sequence. | |
| double | getEventTime (int index) const |
| Returns the timestamp of the event at a given index. | |
| void | addEvent (const MidiMessage &newMessage, double timeAdjustment=0) |
| Inserts a midi message into the sequence. | |
| void | deleteEvent (int index, bool deleteMatchingNoteUp) |
| Deletes one of the events in the sequence. | |
| void | addSequence (const MidiMessageSequence &other, double timeAdjustmentDelta, double firstAllowableDestTime, double endOfAllowableDestTimes) |
| Merges another sequence into this one. | |
| void | updateMatchedPairs () |
| Makes sure all the note-on and note-off pairs are up-to-date. | |
| void | extractMidiChannelMessages (int channelNumberToExtract, MidiMessageSequence &destSequence, bool alsoIncludeMetaEvents) const |
| Copies all the messages for a particular midi channel to another sequence. | |
| void | extractSysExMessages (MidiMessageSequence &destSequence) const |
| Copies all midi sys-ex messages to another sequence. | |
| void | deleteMidiChannelMessages (int channelNumberToRemove) |
| Removes any messages in this sequence that have a specific midi channel. | |
| void | deleteSysExMessages () |
| Removes any sys-ex messages from this sequence. | |
| void | addTimeToMessages (double deltaTime) |
| Adds an offset to the timestamps of all events in the sequence. | |
| void | createControllerUpdatesForTime (int channelNumber, double time, OwnedArray< MidiMessage > &resultMessages) |
| Scans through the sequence to determine the state of any midi controllers at a given time. | |
| void | swapWith (MidiMessageSequence &other) throw () |
| Swaps this sequence with another one. | |
Static Public Member Functions | |
| static juce_UseDebuggingNewOperator int | compareElements (const MidiMessageSequence::MidiEventHolder *first, const MidiMessageSequence::MidiEventHolder *second) throw () |
A sequence of timestamped midi messages.
This allows the sequence to be manipulated, and also to be read from and written to a standard midi file.
| MidiMessageSequence::MidiMessageSequence | ( | ) |
Creates an empty midi sequence object.
| MidiMessageSequence::MidiMessageSequence | ( | const MidiMessageSequence & | other | ) |
Creates a copy of another sequence.
| MidiMessageSequence::~MidiMessageSequence | ( | ) |
Destructor.
| MidiMessageSequence& MidiMessageSequence::operator= | ( | const MidiMessageSequence & | other | ) |
Replaces this sequence with another one.
| void MidiMessageSequence::clear | ( | ) |
Clears the sequence.
| int MidiMessageSequence::getNumEvents | ( | ) | const |
Returns the number of events in the sequence.
| MidiEventHolder* MidiMessageSequence::getEventPointer | ( | int | index | ) | const |
Returns a pointer to one of the events.
| double MidiMessageSequence::getTimeOfMatchingKeyUp | ( | int | index | ) | const |
Returns the time of the note-up that matches the note-on at this index.
If the event at this index isn't a note-on, it'll just return 0.
| int MidiMessageSequence::getIndexOfMatchingKeyUp | ( | int | index | ) | const |
Returns the index of the note-up that matches the note-on at this index.
If the event at this index isn't a note-on, it'll just return -1.
| int MidiMessageSequence::getIndexOf | ( | MidiEventHolder * | event | ) | const |
Returns the index of an event.
| int MidiMessageSequence::getNextIndexAtTime | ( | double | timeStamp | ) | const |
Returns the index of the first event on or after the given timestamp.
If the time is beyond the end of the sequence, this will return the number of events.
| double MidiMessageSequence::getStartTime | ( | ) | const |
Returns the timestamp of the first event in the sequence.
| double MidiMessageSequence::getEndTime | ( | ) | const |
Returns the timestamp of the last event in the sequence.
| double MidiMessageSequence::getEventTime | ( | int | index | ) | const |
Returns the timestamp of the event at a given index.
If the index is out-of-range, this will return 0.0
| void MidiMessageSequence::addEvent | ( | const MidiMessage & | newMessage, | |
| double | timeAdjustment = 0 | |||
| ) |
Inserts a midi message into the sequence.
The index at which the new message gets inserted will depend on its timestamp, because the sequence is kept sorted.
Remember to call updateMatchedPairs() after adding note-on events.
| newMessage | the new message to add (an internal copy will be made) | |
| timeAdjustment | an optional value to add to the timestamp of the message that will be inserted |
| void MidiMessageSequence::deleteEvent | ( | int | index, | |
| bool | deleteMatchingNoteUp | |||
| ) |
Deletes one of the events in the sequence.
Remember to call updateMatchedPairs() after removing events.
| index | the index of the event to delete | |
| deleteMatchingNoteUp | whether to also remove the matching note-off if the event you're removing is a note-on |
| void MidiMessageSequence::addSequence | ( | const MidiMessageSequence & | other, | |
| double | timeAdjustmentDelta, | |||
| double | firstAllowableDestTime, | |||
| double | endOfAllowableDestTimes | |||
| ) |
Merges another sequence into this one.
Remember to call updateMatchedPairs() after using this method.
| other | the sequence to add from | |
| timeAdjustmentDelta | an amount to add to the timestamps of the midi events as they are read from the other sequence | |
| firstAllowableDestTime | events will not be added if their time is earlier than this time. (This is after their time has been adjusted by the timeAdjustmentDelta) | |
| endOfAllowableDestTimes | events will not be added if their time is equal to or greater than this time. (This is after their time has been adjusted by the timeAdjustmentDelta) |
| void MidiMessageSequence::updateMatchedPairs | ( | ) |
Makes sure all the note-on and note-off pairs are up-to-date.
Call this after moving messages about or deleting/adding messages, and it will scan the list and make sure all the note-offs in the MidiEventHolder structures are pointing at the correct ones.
| void MidiMessageSequence::extractMidiChannelMessages | ( | int | channelNumberToExtract, | |
| MidiMessageSequence & | destSequence, | |||
| bool | alsoIncludeMetaEvents | |||
| ) | const |
Copies all the messages for a particular midi channel to another sequence.
| channelNumberToExtract | the midi channel to look for, in the range 1 to 16 | |
| destSequence | the sequence that the chosen events should be copied to | |
| alsoIncludeMetaEvents | if true, any meta-events (which don't apply to a specific channel) will also be copied across. |
| void MidiMessageSequence::extractSysExMessages | ( | MidiMessageSequence & | destSequence | ) | const |
Copies all midi sys-ex messages to another sequence.
| destSequence | this is the sequence to which any sys-exes in this sequence will be added |
| void MidiMessageSequence::deleteMidiChannelMessages | ( | int | channelNumberToRemove | ) |
Removes any messages in this sequence that have a specific midi channel.
| channelNumberToRemove | the midi channel to look for, in the range 1 to 16 |
| void MidiMessageSequence::deleteSysExMessages | ( | ) |
Removes any sys-ex messages from this sequence.
| void MidiMessageSequence::addTimeToMessages | ( | double | deltaTime | ) |
Adds an offset to the timestamps of all events in the sequence.
| deltaTime | the amount to add to each timestamp. |
| void MidiMessageSequence::createControllerUpdatesForTime | ( | int | channelNumber, | |
| double | time, | |||
| OwnedArray< MidiMessage > & | resultMessages | |||
| ) |
Scans through the sequence to determine the state of any midi controllers at a given time.
This will create a sequence of midi controller changes that can be used to set all midi controllers to the state they would be in at the specified time within this sequence.
As well as controllers, it will also recreate the midi program number and pitch bend position.
| channelNumber | the midi channel to look for, in the range 1 to 16. Controllers for other channels will be ignored. | |
| time | the time at which you want to find out the state - there are no explicit units for this time measurement, it's the same units as used for the timestamps of the messages | |
| resultMessages | an array to which midi controller-change messages will be added. This will be the minimum number of controller changes to recreate the state at the required time. |
| void MidiMessageSequence::swapWith | ( | MidiMessageSequence & | other | ) | throw () |
Swaps this sequence with another one.
| static juce_UseDebuggingNewOperator int MidiMessageSequence::compareElements | ( | const MidiMessageSequence::MidiEventHolder * | first, | |
| const MidiMessageSequence::MidiEventHolder * | second | |||
| ) | throw () [static] |
For internal use only.
1.6.3
