import version 0.36

svn path=/trunk/externals/august/readanysf~/; revision=12836

1 files changed, 300 insertions, 0 deletions

diff --git a/readanysf~.cpp b/readanysf~.cpp
new file mode 100644
index 0000000..f6efb19
--- /dev/null
+++ b/readanysf~.cpp
@@ -0,0 +1,300 @@
+/*
+ * Readanysf  PD object for reading and playing multiple soundfile types
+ * from disk and from the web using gmerlin_avdecode
+ *
+ * Copyright (C) 2003-9 August Black
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * readanysf.cpp
+ */
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdbool.h>  //IMPORTANT bool
+#include <stdlib.h>   // for malloc
+#include <stdio.h>	//sprintf
+#include <string.h>  //strcmp
+#include <math.h>   // ceil
+
+#include "m_pd.h"
+#include "Readsf.h"
+
+#define MAXSFCHANS 64	// got this from d_soundfile.c in pd/src
+
+
+static t_class *readanysf_class;
+
+typedef struct readanysf {
+	t_object x_obj;
+	t_sample *(x_outvec[MAXSFCHANS]);
+	int frames ;   // this should be block size
+	int num_channels;
+	int num_frames_in_fifo;
+	int num_samples_per_frame;
+	int buffersize;
+	unsigned int tick;  // how often to send outlet info
+	bool play;
+	t_sample *buf;
+	unsigned int count;
+	t_outlet *outinfo;
+	Readsf *rdsf;
+} t_readanysf;
+
+
+void m_play(t_readanysf *x) {
+	if (x->rdsf->isReady() ) {	
+		x->play = true;
+	} else {
+		if (x->rdsf->isOpening() ) {
+			post("Current file is still starting.");
+			post("This probably means that it is a stream and it needs to buffer in from the network.");
+		} else {
+			post("Current file is either invalid or an unsupported codec.");
+		}
+	}
+}
+
+void readanysf_bang(t_readanysf *x) {
+	m_play(x);
+}
+
+
+void m_pause(t_readanysf *x) {
+	x->play = false;
+}
+
+void m_pcm_seek(t_readanysf *x, float f) {
+	if (! x->rdsf->PCM_seek( (long)f) )		
+		post("can't seek on this file.");
+
+}	
+
+void m_time_seek(t_readanysf *x, float f) {
+	if (! x->rdsf->TIME_seek( (double)f) )		
+		post("can't seek on this file.");
+
+}	
+
+void m_tick(t_readanysf *x, float f) {
+	if (f >= 0.0) {
+		x->tick = (unsigned int) f ;
+	}
+}	
+
+void m_stop(t_readanysf *x) {
+	x->play = false;
+	x->rdsf->Rewind();
+}
+
+void m_open_callback( void * data) {
+	t_atom lst;
+	t_readanysf * x = (t_readanysf *)data;
+
+	if (x->rdsf->isOpen()) {	
+		SETFLOAT(&lst, (float)x->rdsf->get_input_samplerate() );
+		outlet_anything(x->outinfo, gensym("samplerate"), 1, &lst);
+		
+		SETFLOAT(&lst, x->rdsf->getLengthInSeconds() );
+		outlet_anything(x->outinfo, gensym("length"), 1, &lst);
+
+		outlet_float(x->outinfo, 0.0);
+
+		// ready should be last	
+		SETFLOAT(&lst, 1.0 );
+		outlet_anything(x->outinfo, gensym("ready"), 1, &lst);
+		// set time to 0 again here just to be sure
+	} else {
+		SETFLOAT(&lst, 0.0 );
+		outlet_anything(x->outinfo, gensym("samplerate"), 1, &lst);
+		SETFLOAT(&lst, 0.0 );
+		outlet_anything(x->outinfo, gensym("length"), 1, &lst);
+		SETFLOAT(&lst, 0.0 );
+		outlet_anything(x->outinfo, gensym("ready"), 1, &lst);
+		outlet_float(x->outinfo, 0.0);
+		post("Invalid file or unsupported codec.");
+	}
+}
+
+void m_open(t_readanysf *x, t_symbol *s) {
+
+	t_atom lst;
+	SETFLOAT(&lst, 0.0 );
+	outlet_anything(x->outinfo, gensym("ready"), 1, &lst);
+
+	SETFLOAT(&lst, 0.0 );
+	outlet_anything(x->outinfo, gensym("length"), 1, &lst);
+	
+	outlet_float(x->outinfo, 0.0);
+
+	x->play = false;
+	x->rdsf->Open( s->s_name);
+}
+
+void m_speed(t_readanysf *x, float f) {
+	x->rdsf->setSpeed( f );
+}
+
+void m_loop(t_readanysf *x, float f) {
+	if ( f == 0)
+		x->rdsf->doLoop( false );
+	else 
+		x->rdsf->doLoop( true );
+	post("looping = %d", x->rdsf->doLoop());
+}
+
+
+static void *readanysf_new(t_float f, t_float f2, t_float f3 ) {
+  
+  int nchannels = (int)f;
+  int nframes = (int)f2;
+  int nsamples = (int)f3;
+  int i;
+  t_atom lst;
+
+  // if the external is created without any options
+  if (nchannels <=0)
+	  nchannels = 2;
+
+  if (nframes <=0)
+	  nframes = 24;
+
+  if (nsamples <=0)
+	  nsamples = sys_getblksize();
+
+
+
+  t_readanysf *x = (t_readanysf *)pd_new(readanysf_class);
+  x->num_channels = nchannels;
+  x->num_frames_in_fifo = nframes;
+  x->num_samples_per_frame = nsamples;
+  x->count = 0;
+  x->tick = 1000;
+  x->buffersize =0;
+  x->rdsf = NULL; 
+  x->play =false; 
+  for (i=0; i < nchannels; i++) {
+  	outlet_new(&x->x_obj,  gensym("signal"));
+  }
+  x->outinfo = outlet_new(&x->x_obj, &s_anything);
+  SETFLOAT(&lst, 0.0 );
+  outlet_anything(x->outinfo, gensym("ready"), 1, &lst);
+  
+  // set time to 0.0
+  outlet_float(x->outinfo, 0.0);
+	if (x->rdsf == NULL) {
+		x->rdsf = new Readsf ( (int)sys_getsr(), x->num_channels, x->num_frames_in_fifo, x->num_samples_per_frame);
+		post("Created new readanysf~ with %d channels and internal buffer of %d * %d = %d", x->num_channels,
+				x->num_frames_in_fifo, x->num_samples_per_frame, x->num_frames_in_fifo *  x->num_samples_per_frame);
+	}
+	x->rdsf->setOpenCallback( m_open_callback, (void *)x); 
+
+  return (void *)x;
+}
+
+static t_int *readanysf_perform(t_int *w) {
+	t_readanysf *x = (t_readanysf *) (w[1]);
+	int i=0,j=0, k=0;
+	int samples_returned = 0;
+	int blocksize = x->frames; //sys_getblksize();
+	t_atom lst;
+
+	if (x->play ) {
+		samples_returned = x->rdsf->Decode( (char *) x->buf, (unsigned int)blocksize);
+		if (samples_returned == 0 && x->rdsf->getEOF() == true) {
+			// if loop?
+			m_stop(x);
+			outlet_bang(x->outinfo);
+		}
+		for (i = 0; i < x->num_channels; i++) {
+			k =0;
+			for( j=0; j< samples_returned; j++) {
+				x->x_outvec[i][j] = x->buf[ k + i  ];
+				k = k + x->num_channels;
+			}
+
+		}
+		// this could happen if 1) the file has ended or 
+		// 	2) we are decoding frames faster than what can be read 
+		// 	from disk or from the net
+		//if (samples_returned != x->frames)
+		//	printf("%d != %d\n", x->frames, samples_returned);
+	} 
+
+	for (i = 0; i < x->num_channels; i++) {
+		for (j = samples_returned; j < x->frames;  j++) {
+			x->x_outvec[i][j] = 0.0;
+		}
+	}
+	if ( ++x->count > x->tick ) {
+		SETFLOAT (&lst, x->rdsf->getFifoSizePercentage() );
+		//post("cache: %f", x->rdsf->getFifoSizePercentage());
+		outlet_anything(x->outinfo, gensym("cache"), 1, &lst);
+		if (x->play) {
+			outlet_float(x->outinfo, x->rdsf->getTimeInSeconds());
+		}
+		x->count = 0;
+	}
+	
+	return (w+2);	
+}
+
+void readanysf_dsp(t_readanysf *x, t_signal **sp) {
+
+  int i, tmpbufsize;
+
+  x->frames = sp[0]->s_n;
+  tmpbufsize = x->frames * x->num_channels  * sizeof(t_sample);
+	//x->rdsf = new Readsf ( (int)sys_getsr(), x->num_channels, (x->frames + 1) * SRC_MAX );
+  // only malloc the buffer if the frame size changes.
+  if(  x->buffersize < tmpbufsize ) { 
+  	x->buffersize = tmpbufsize;
+  	free(x->buf);
+		x->buf = (t_sample *)malloc( x->buffersize  );
+  	//post("frames=%d, buffersize = %d, spf=%d", x->frames, x->buffersize, x->samples_per_frame);
+  }
+  for (i = 0; i < x->num_channels; i++)
+	  x->x_outvec[i] = sp[i]->s_vec;
+		    
+  dsp_add(readanysf_perform, 1, x);
+}
+
+static void readanysf_free(t_readanysf *x) {
+	// delete the readany objs
+	delete x->rdsf;
+	x->rdsf = NULL;
+}
+
+//extern "C" void readanysf_tilde_setup(void) {
+extern "C" void readanysf_tilde_setup(void) {
+
+  readanysf_class = class_new(gensym("readanysf~"), (t_newmethod)readanysf_new,
+  	(t_method)readanysf_free, sizeof(t_readanysf), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+
+  class_addmethod(readanysf_class, (t_method)readanysf_dsp, gensym("dsp"), A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_open, gensym("open"), A_SYMBOL, A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_play, gensym("play"),  A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_pause, gensym("pause"),  A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_stop, gensym("stop"),  A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_tick, gensym("tick"), A_FLOAT, A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_speed, gensym("speed"), A_FLOAT, A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_loop, gensym("loop"), A_FLOAT, A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_pcm_seek, gensym("pcm_seek"), A_FLOAT, A_NULL);
+  class_addmethod(readanysf_class, (t_method)m_time_seek, gensym("time_seek"), A_FLOAT, A_NULL);
+  class_addbang(readanysf_class, readanysf_bang);
+
+}