diff options
Diffstat (limited to 'attic/muse_qt4_evolution/synti/zynaddsubfx/Output')
| -rw-r--r-- | attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.C | 138 | ||||
| -rw-r--r-- | attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.h | 52 |
2 files changed, 190 insertions, 0 deletions
diff --git a/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.C b/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.C new file mode 100644 index 00000000..525bedc5 --- /dev/null +++ b/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.C @@ -0,0 +1,138 @@ +/* + ZynAddSubFX - a software synthesizer + + Recorder.C - Records sound to a file + Copyright (C) 2002-2005 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 <stdio.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> + +#include "Recorder.h" + +Recorder::Recorder(){ + recordbuf_16bit=new short int [SOUND_BUFFER_SIZE*2]; + status=0;file=-1; + sampleswritten=0; + notetrigger=0; + for (int i=0;i<SOUND_BUFFER_SIZE*2;i++){ + recordbuf_16bit[i]=0; + }; +}; + +Recorder::~Recorder(){ + if (recording()==1) stop(); + delete [] recordbuf_16bit; +}; + +int Recorder::preparefile(char *filename_,int overwrite){ + if (overwrite==0) file=open(filename_,O_CREAT|O_EXCL|O_WRONLY|O_BINARY,00444+00222); + else file=open(filename_,O_CREAT|O_WRONLY|O_TRUNC|O_BINARY,00444+00222);//overwrite if the file exists + if (file==-1) { + if (errno==EEXIST) return(1);//file exists already + else return(2);//Access Denied or any other problem + }; + status=1;//ready + + //prepare the space fot the wav header + //the header itself, will be written when the file is closed + unsigned char zerobuf[44]; for (int i=0;i<44;i++) zerobuf[i]=0; + write(file,zerobuf,44); + + return(0); +}; + +void Recorder::start(){ + notetrigger=0; + status=2;//recording +}; + +void Recorder::stop(){ + unsigned int chunksize; + lseek(file,0,SEEK_SET); + + write(file,"RIFF",4); + chunksize=sampleswritten*4+36; + write(file,&chunksize,4); + + write(file,"WAVEfmt ",8); + chunksize=16; + write(file,&chunksize,4); + unsigned short int formattag=1;//uncompresed wave + write(file,&formattag,2); + unsigned short int nchannels=2;//stereo + write(file,&nchannels,2); + unsigned int samplerate=SAMPLE_RATE;//samplerate + write(file,&samplerate,4); + unsigned int bytespersec=SAMPLE_RATE*4;//bytes/sec + write(file,&bytespersec,4); + unsigned short int blockalign=4;//2 channels * 16 bits/8 + write(file,&blockalign,2); + unsigned short int bitspersample=16; + write(file,&bitspersample,2); + + write(file,"data",4); + chunksize=sampleswritten*blockalign; + write(file,&chunksize,4); + + close(file); + file=-1; + status=0; + sampleswritten=0; +}; + +void Recorder::pause(){ + status=0; +}; + +int Recorder::recording(){ + if ((status==2)&&(notetrigger!=0)) return(1); + else return(0); +}; + +void Recorder::recordbuffer(REALTYPE *outl,REALTYPE *outr){ + int tmp; + if (status!=2) return; + for (int i=0;i<SOUND_BUFFER_SIZE;i++){ + tmp=(int)(outl[i]*32767.0); + if (tmp<-32768) tmp=-32768; + if (tmp>32767) tmp=32767; + recordbuf_16bit[i*2]=tmp; + + tmp=(int)(outr[i]*32767.0); + if (tmp<-32768) tmp=-32768; + if (tmp>32767) tmp=32767; + recordbuf_16bit[i*2+1]=tmp; + }; + if (write(file,recordbuf_16bit,SOUND_BUFFER_SIZE*4)<SOUND_BUFFER_SIZE*4) { + fprintf(stderr,"Error while recording !\n"); + stop(); + }; + sampleswritten+=SOUND_BUFFER_SIZE; +}; + +void Recorder::triggernow(){ + if (status==2) notetrigger=1; +}; diff --git a/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.h b/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.h new file mode 100644 index 00000000..fea6e409 --- /dev/null +++ b/attic/muse_qt4_evolution/synti/zynaddsubfx/Output/Recorder.h @@ -0,0 +1,52 @@ +/* + ZynAddSubFX - a software synthesizer + + Recorder.h - Records sound to a file + Copyright (C) 2002-2005 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 + +*/ + +#ifndef RECORDER_H +#define RECORDER_H + +#include "../globals.h" + +class Recorder{ + public: + Recorder(); + ~Recorder(); + int preparefile(char *filename_,int overwrite);//returns 1 if the file exists + void start(); + void stop(); + void pause(); + int recording(); + void triggernow(); + void recordbuffer(REALTYPE *outl,REALTYPE *outr); + + /* Status: + 0 - not ready(no file selected), + 1 - ready + 2 - recording */ + int status; + + private: + int file; + short int *recordbuf_16bit; + int sampleswritten,notetrigger; +}; + +#endif |