1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
|
/*
PAaudiooutput.C - Audio output for PortAudio
Copyright (C) 2002-2009 Nasca Octavian Paul
Author: Nasca Octavian Paul
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License (version 2) for more details.
You should have received a copy of the GNU General Public License (version 2)
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include "PAaudiooutput.h"
Player *player=NULL;
PaStream *stream=NULL;
static int PAprocess(const void *inputBuffer,void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo *outTime,PaStreamCallbackFlags statusFlags,void *userData){
float *out=(float *)outputBuffer;
player->getaudiobuffer(framesPerBuffer,out);
return(0);
};
void PAaudiooutputinit(Player *player_,int samplerate){
player=player_;
if (stream) return;
Pa_Initialize();
Pa_OpenDefaultStream(&stream,0,2,paFloat32,samplerate,PA_SOUND_BUFFER_SIZE,PAprocess,NULL);
Pa_StartStream(stream);
};
void PAfinish(){
if (stream){
Pa_StopStream(stream);
Pa_CloseStream(stream);
Pa_Terminate();
};
stream=NULL;
};
|