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83 lines
2.1 KiB
83 lines
2.1 KiB
/*
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* Copyright 2011 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.levien.synthesizer.core.midi;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* MidiFile represents all of the midi information that could be read from a .mid or .smf file.
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* It contains a MidiHeader and 1 or more MidiTrack.
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*/
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public class MidiFile {
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/**
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* Creates a new empty MidiFile.
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*/
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public MidiFile() {
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header_ = new MidiHeader();
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tracks_ = new ArrayList<MidiTrack>();
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}
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/**
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* Creates a new MidiFile from the data in InputStream.
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* @param input - The stream to read the data from.
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* @throws IOException - On any error reading the data.
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*/
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public MidiFile(InputStream input) throws IOException {
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header_ = new MidiHeader();
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tracks_ = new ArrayList<MidiTrack>();
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MidiReader.readMidiFile(input, this);
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}
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/**
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* Returns a mutable header object for the file.
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*/
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public MidiHeader getHeader() {
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return header_;
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}
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/**
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* Returns the number of tracks in this file.
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*/
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public int getTrackCount() {
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return tracks_.size();
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}
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/**
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* Returns the mutable track at the given index.
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*/
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public MidiTrack getTrack(int track) {
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return tracks_.get(track);
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}
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/**
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* Adds a new track to the file and returns a mutable reference to it.
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*/
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public MidiTrack addTrack() {
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MidiTrack track = new MidiTrack();
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tracks_.add(track);
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return track;
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}
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// The header data.
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private MidiHeader header_;
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// The list of tracks.
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private List<MidiTrack> tracks_;
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}
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