Struct rimd::MetaEvent
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[src]
pub struct MetaEvent {
pub command: MetaCommand,
pub length: u64,
pub data: Vec<u8>,
}Meta event building and parsing. See http://cs.fit.edu/~ryan/cse4051/projects/midi/midi.html#meta_event for a description of the various meta events and their formats
Fields
command | |
length | |
data |
Methods
impl MetaEvent
fn data_as_u64(&self, bytes: usize) -> u64
Turn bytes bytes of the data of this event into a u64
fn data_as_text(&self) -> Result<String, FromUtf8Error>
Parse the data of this event into a utf8 string
fn next_event(reader: &mut Read) -> Result<MetaEvent, MetaError>
Extract the next meta event from a reader
fn sequence_number(sequence_number: u16) -> MetaEvent
Create a sequence number meta event
fn text_event(text: String) -> MetaEvent
Create a text meta event
fn copyright_notice(copyright: String) -> MetaEvent
Create a copyright notice meta event
fn sequence_or_track_name(name: String) -> MetaEvent
Create a name meta event
fn instrument_name(name: String) -> MetaEvent
Create an instrument name meta event
fn lyric_text(text: String) -> MetaEvent
Create a lyric text meta event
fn marker_text(text: String) -> MetaEvent
Create a marker text meta event
fn cue_point(text: String) -> MetaEvent
Create a cue point meta event
fn midichannel_prefix_assignment(channel: u8) -> MetaEvent
Create a midi channel prefix assignment meta event
fn midiport_prefix_assignment(port: u8) -> MetaEvent
Create a midi port prefix assignment meta event
fn end_of_track() -> MetaEvent
Create an end of track meta event
fn tempo_setting(tempo: u32) -> MetaEvent
Create an event to set track tempo. This is stored as a 24-bit value. This method will fail an assertion if the supplied tempo is greater than 224.
fn smpte_offset(hours: u8, minutes: u8, seconds: u8, frames: u8, fractional: u8) -> MetaEvent
Create an smpte offset meta event
fn time_signature(numerator: u8, denominator: u8, clocks_per_tick: u8, num_32nd_notes_per_24_clocks: u8) -> MetaEvent
Create a time signature event.
Time signature of the form:
numerator/2denominator
eg: 6/8 would be specified using numerator=6, denominator=3
The parameter clocks_per_tick is the number of MIDI Clocks per metronome tick.
Normally, there are 24 MIDI Clocks per quarter note.
However, some software allows this to be set by the user.
The parameter num_32nd_notes_per_24_clocks defines this in terms of the
number of 1/32 notes which make up the usual 24 MIDI Clocks
(the 'standard' quarter note). 8 is standard
fn key_signature(sharps_flats: u8, major_minor: u8) -> MetaEvent
Create a Key Signature event
expressed as the number of sharps or flats, and a major/minor flag.
sharps_flats of 0 represents a key of C, negative numbers represent
'flats', while positive numbers represent 'sharps'.
fn sequencer_specific_event(data: Vec<u8>) -> MetaEvent
This is the MIDI-file equivalent of the System Exclusive Message. sequencer-specific directives can be incorporated into a MIDI file using this event.