java.lang.Object javax.sound.midi.MidiMessage javax.sound.midi.ShortMessage
A ShortMessage contains a MIDI message that has at most two data bytes following its status byte. The types of MIDI message that satisfy this criterion are channel voice, channel mode, system common, and system real-time--in other words, everything except system exclusive and meta-events. The ShortMessage class provides methods for getting and setting the contents of the MIDI message.
A number of ShortMessage methods have integer parameters by which you specify a MIDI status or data byte. If you know the numeric value, you can express it directly. For system common and system real-time messages, you can often use the corresponding fields of ShortMessage, such as SYSTEM_RESET . For channel messages, the upper four bits of the status byte are specified by a command value and the lower four bits are specified by a MIDI channel number. To convert incoming MIDI data bytes that are in the form of Java's signed bytes, you can use the conversion code given in the MidiMessage class description.
Field Summary | |
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static int |
ACTIVE_SENSING
Status byte for Active Sensing message (0xFE, or 254). |
static int |
CHANNEL_PRESSURE
Command value for Channel Pressure (Aftertouch) message (0xD0, or 208) |
static int |
CONTINUE
Status byte for Continue message (0xFB, or 251). |
static int |
CONTROL_CHANGE
Command value for Control Change message (0xB0, or 176) |
static int |
END_OF_EXCLUSIVE
Status byte for End of System Exclusive message (0xF7, or 247). |
static int |
MIDI_TIME_CODE
Status byte for MIDI Time Code Quarter Frame message (0xF1, or 241). |
static int |
NOTE_OFF
Command value for Note Off message (0x80, or 128) |
static int |
NOTE_ON
Command value for Note On message (0x90, or 144) |
static int |
PITCH_BEND
Command value for Pitch Bend message (0xE0, or 224) |
static int |
POLY_PRESSURE
Command value for Polyphonic Key Pressure (Aftertouch) message (0xA0, or 128) |
static int |
PROGRAM_CHANGE
Command value for Program Change message (0xC0, or 192) |
static int |
SONG_POSITION_POINTER
Status byte for Song Position Pointer message (0xF2, or 242). |
static int |
SONG_SELECT
Status byte for MIDI Song Select message (0xF3, or 243). |
static int |
START
Status byte for Start message (0xFA, or 250). |
static int |
STOP
Status byte for Stop message (0xFC, or 252). |
static int |
SYSTEM_RESET
Status byte for System Reset message (0xFF, or 255). |
static int |
TIMING_CLOCK
Status byte for Timing Clock messagem (0xF8, or 248). |
static int |
TUNE_REQUEST
Status byte for Tune Request message (0xF6, or 246). |
Fields inherited from class javax.sound.midi. MidiMessage |
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data , length |
Constructor Summary | |
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ShortMessage
() Constructs a new ShortMessage. |
|
protected |
ShortMessage
(byte[] data) Constructs a new ShortMessage. |
Method Summary | |
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Object |
clone
() Creates a new object of the same class and with the same contents as this object. |
int |
getChannel
() Obtains the MIDI channel associated with this event. |
int |
getCommand
() Obtains the MIDI command associated with this event. |
int |
getData1
() Obtains the first data byte in the message. |
int |
getData2
() Obtains the second data byte in the message. |
protected int |
getDataLength
(int status) Retrieves the number of data bytes associated with a particular status byte value. |
void |
setMessage
(int status) Sets the parameters for a MIDI message that takes no data bytes. |
void |
setMessage
(int status, int data1, int data2) Sets the parameters for a MIDI message that takes one or two data bytes. |
void |
setMessage
(int command, int channel, int data1, int data2) Sets the short message parameters for a channel message which takes up to |
Methods inherited from class javax.sound.midi. MidiMessage |
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getLength , getMessage , getStatus , setMessage |
Methods inherited from class java.lang. Object |
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equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
Field Detail |
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public static final int MIDI_TIME_CODE
public static final int SONG_POSITION_POINTER
public static final int SONG_SELECT
public static final int TUNE_REQUEST
public static final int END_OF_EXCLUSIVE
public static final int TIMING_CLOCK
public static final int START
public static final int CONTINUE
public static final int STOP
public static final int ACTIVE_SENSING
public static final int SYSTEM_RESET
public static final int NOTE_OFF
public static final int NOTE_ON
public static final int POLY_PRESSURE
public static final int CONTROL_CHANGE
public static final int PROGRAM_CHANGE
public static final int CHANNEL_PRESSURE
public static final int PITCH_BEND
Constructor Detail |
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public ShortMessage()
protected ShortMessage(byte[] data)
Method Detail |
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public void setMessage(int status) throws InvalidMidiDataException
public void setMessage(int status, int data1, int data2) throws InvalidMidiDataException
public void setMessage(int command, int channel, int data1, int data2) throws InvalidMidiDataException
public int getChannel()
public int getCommand()
public int getData1()
public int getData2()
public Object clone()
protected final int getDataLength(int status) throws InvalidMidiDataException