145 lines
3.1 KiB
C++
145 lines
3.1 KiB
C++
/*
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* Author: Harry van Haaren 2013
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* harryhaaren@gmail.com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LUPPP_AUDIOBUFFER_H
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#define LUPPP_AUDIOBUFFER_H
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#include <vector>
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#include <string>
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#include <cstring>
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#include <iostream>
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#include <stdlib.h>
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using namespace std;
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/// AudioBuffer stores float samples in a big vector.
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class AudioBuffer
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{
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public:
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AudioBuffer()
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{
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ID = privateID++;
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init();
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}
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AudioBuffer(unsigned long size)
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{
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// FIXME recorded buffers don't get an ID, using garbage IDs
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/// no ID assigned: it *takes* the one from the previous buffer!
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init();
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buffer.resize(size);
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}
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void init()
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{
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numBeats = 0;
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audioFrames = 0;
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memset( name, 0, sizeof(char)*20 );
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sprintf( name, "%i", ID );
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}
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/// this function is used for "resizing" an exisiting buffer, and should
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/// not be called for any other reason.
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void setID(int id)
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{
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ID = id;
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}
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int getID()
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{
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return ID;
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}
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void setName(const char* n)
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{
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if ( strlen(n) > 19 )
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{
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#ifdef DEBUG_BUFFER
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cout << "AudioBuffer setName too long!" << endl;
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#endif
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return;
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}
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memcpy( name, n, sizeof(char)* 20 );
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}
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int getBeats()
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{
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return numBeats;
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}
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void setBeats(int b)
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{
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#ifdef DEBUG_BUFFER
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cout << "AudioBuffer now has " << b << " beats\n" << endl;
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#endif
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numBeats = b;
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}
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void setAudioFrames(long af)
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{
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audioFrames = af;
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#ifdef DEBUG_BUFFER
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cout << "AudioBuffer " << ID << " has " << audioFrames << " audioFrames\n" << endl;
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#endif
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}
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long getAudioFrames()
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{
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return audioFrames;
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}
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std::vector<float>& getData()
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{
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return buffer;
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}
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void nonRtSetSample(std::vector<float>& sample)
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{
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buffer.swap(sample);
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}
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void nonRtResize(unsigned long size)
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{
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buffer.resize(size);
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}
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friend ostream& operator<<(ostream& o, const AudioBuffer& a)
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{
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o << "AudioBuffer " << a.name <<
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" beats: " << a.numBeats <<
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" audioFrames: " << a.audioFrames << endl;
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return o;
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}
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protected:
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static int privateID;
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int ID;
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int numBeats;
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/// holds the number of samples that are usable audio, as opposed to
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/// buffer.size(), which also has non-used space at the end.
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long audioFrames;
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char name[20];
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std::vector<float> buffer;
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};
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#endif
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