From fc3d3c0a4f110a23335398c327ac0a4fc949d5cb Mon Sep 17 00:00:00 2001 From: Guenter Geiger Date: Mon, 17 Jun 2002 10:13:57 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r12, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/ggee/; revision=13 --- signal/sfwrite~.c | 284 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100755 signal/sfwrite~.c (limited to 'signal/sfwrite~.c') diff --git a/signal/sfwrite~.c b/signal/sfwrite~.c new file mode 100755 index 0000000..9a999c9 --- /dev/null +++ b/signal/sfwrite~.c @@ -0,0 +1,284 @@ +/* (C) Guenter Geiger */ + + +#include +/*#include */ +#include "g_canvas.h" +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +#include +#include +#ifndef NT +#include +#include +#else +#include +#endif +#include +#include + + +#ifdef NT +#define BINREADMODE "rb" +#define OPENPARAMS O_WRONLY | O_CREAT | O_TRUNC +#else +#define BINREADMODE "r" +#define OPENPARAMS O_WRONLY | O_CREAT | O_NONBLOCK | O_TRUNC +#endif +#define MAX_CHANS 4 + + +/* + * ------------------------------------------- sfwrite~ ------------------------------- + */ + +#define BLOCKTIME 0.01 +#define uint32 unsigned int +#define uint16 unsigned short + +static t_class *sfwrite_class; + +typedef struct _sfwrite +{ + t_object x_obj; + t_symbol* filename; + int x_file; + + t_int rec; + t_int x_channels; + uint32 size; + t_glist * x_glist; + t_int x_blocked; + t_int x_blockwarn; +} t_sfwrite; + +typedef struct _wave +{ + char w_fileid[4]; /* chunk id 'RIFF' */ + uint32 w_chunksize; /* chunk size */ + char w_waveid[4]; /* wave chunk id 'WAVE' */ + char w_fmtid[4]; /* format chunk id 'fmt ' */ + uint32 w_fmtchunksize; /* format chunk size */ + uint16 w_fmttag; /* format tag, 1 for PCM */ + uint16 w_nchannels; /* number of channels */ + uint32 w_samplespersec; /* sample rate in hz */ + uint32 w_navgbytespersec; /* average bytes per second */ + uint16 w_nblockalign; /* number of bytes per sample */ + uint16 w_nbitspersample; /* number of bits in a sample */ + char w_datachunkid[4]; /* data chunk id 'data' */ + uint32 w_datachunksize; /* length of data chunk */ +} t_wave; + + +static void sfwrite_wave_setup(t_sfwrite* x,t_wave* w) +{ + + strncpy(w->w_fileid,"RIFF",4); /* chunk id 'RIFF' */ + w->w_chunksize = x->size + sizeof(t_wave) -8; /* chunk size */ + strncpy(w->w_waveid,"WAVE",4); /* wave chunk id 'WAVE' */ + strncpy(w->w_fmtid,"fmt ",4); /* format chunk id 'fmt '*/ + w->w_fmtchunksize = 16; /* format chunk size */ + w->w_fmttag = 1; /* format tag, 1 for PCM */ + w->w_nchannels = x->x_channels; /* number of channels */ + w->w_samplespersec = 44100; /* sample rate in hz */ + w->w_navgbytespersec = 44100*x->x_channels*2; /* average bytes per second */ + w->w_nblockalign = 4; /* number of bytes per sample */ + w->w_nbitspersample = 16; /* number of bits in a sample */ + strncpy(w->w_datachunkid,"data",4); /* data chunk id 'data'*/ + w->w_datachunksize = x->size; /* length of data chunk */ +} + + + +static void sfwrite_close(t_sfwrite *x) +{ + if (x->x_file > 0) { + t_wave w; + sfwrite_wave_setup(x,&w); + lseek(x->x_file,0,SEEK_SET); + write(x->x_file,&w,sizeof(w)); + close(x->x_file); + } + x->x_file = -1; +} + + +static void sfwrite_open(t_sfwrite *x,t_symbol *filename) +{ + char fname[MAXPDSTRING]; + + if (filename == &s_) { + post("sfwrite: open without filename"); + return; + } + + canvas_makefilename(glist_getcanvas(x->x_glist), filename->s_name, + fname, MAXPDSTRING); + + x->x_blocked = 0; + x->filename = filename; + post("sfwrite: filename = %s",x->filename->s_name); + + sfwrite_close(x); + + if ((x->x_file = open(fname,OPENPARAMS,0664)) < 0) + { + error("can't create %s",fname); + return; + } + + /* skip the header */ + + lseek(x->x_file,sizeof(t_wave),SEEK_SET); + x->size = 0; + + +} + +static void sfwrite_block(t_sfwrite *x, t_floatarg f) +{ + x->x_blockwarn = f; +} + + +static void sfwrite_float(t_sfwrite *x, t_floatarg f) +{ + int t = f; + if (t) { + post("sfwrite: start", f); + x->rec=1; + } + else { + post("sfwrite: stop", f); + x->rec=0; + } + +} + + +static short out[4*64]; + +static t_int *sfwrite_perform(t_int *w) +{ + t_sfwrite* x = (t_sfwrite*)(w[1]); + t_float * in[4]; + int c = x->x_channels; + int i,num,n; + short* tout = out; + int ret; + double timebefore,timeafter; + double late; + + for (i=0;i < c;i++) { + in[i] = (t_float *)(w[2+i]); + } + + n = num = (int)(w[2+c]); + + /* loop */ + + if (x->rec && x->x_file) { + + while (n--) { + for (i=0;ix_file,out,sizeof(short)*num*c)) < (signed int)sizeof(short)*num*c) { + post("sfwrite: short write %d",ret); + + } + timeafter = sys_getrealtime(); + late = timeafter - timebefore; + + /* OK, we let only 10 ms block here */ + if (late > BLOCKTIME && x->x_blockwarn) { + post("sfwrite blocked %f ms",late*1000); + x->x_blocked++; + if (x->x_blocked > x->x_blockwarn) { + x->rec = 0; + post("maximum blockcount %d reached, recording stopped (set blockcount with \"block \"",x->x_blockwarn); + } + } + x->size +=64*x->x_channels*sizeof(short) ; + } + + return (w+3+c); +} + + + +static void sfwrite_dsp(t_sfwrite *x, t_signal **sp) +{ + switch (x->x_channels) { + case 1: + dsp_add(sfwrite_perform, 3, x, sp[0]->s_vec, + sp[0]->s_n); + break; + case 2: + dsp_add(sfwrite_perform, 4, x, sp[0]->s_vec, + sp[1]->s_vec, sp[0]->s_n); + break; + case 4: + dsp_add(sfwrite_perform, 6, x, sp[0]->s_vec, + sp[1]->s_vec, + sp[2]->s_vec, + sp[3]->s_vec, + sp[0]->s_n); + break; + } +} + +static void sfwrite_free(t_sfwrite* x) +{ + sfwrite_close(x); +} + + +static void *sfwrite_new(t_floatarg chan) +{ + t_sfwrite *x = (t_sfwrite *)pd_new(sfwrite_class); + t_int c = chan; + + if (c<1 || c > MAX_CHANS) c = 1; + + x->x_glist = (t_glist*) canvas_getcurrent(); + x->x_channels = c--; + x->x_file=0; + x->rec = 0; + x->size = 0; + x->x_blocked = 0; + x->x_blockwarn = 10; + while (c--) { + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); + } + + + return (x); +} + +void sfwrite_tilde_setup(void) +{ + sfwrite_class = class_new(gensym("sfwrite~"), (t_newmethod)sfwrite_new, (t_method)sfwrite_free, + sizeof(t_sfwrite), 0,A_DEFFLOAT,0); + class_addmethod(sfwrite_class,nullfn,gensym("signal"), 0); + class_addmethod(sfwrite_class, (t_method) sfwrite_dsp, gensym("dsp"), 0); + class_addmethod(sfwrite_class, (t_method) sfwrite_open, gensym("open"), A_SYMBOL,A_NULL); + class_addmethod(sfwrite_class, (t_method) sfwrite_close, gensym("close"), 0); + class_addmethod(sfwrite_class, (t_method)sfwrite_block,gensym("block"),A_DEFFLOAT,0); + class_addfloat(sfwrite_class, sfwrite_float); + +} + + + + + + + + -- cgit v1.2.1