shithub: aubio

Download patch

ref: 14ac1db982c8111ab2e74041c26d505f711fe536
parent: 870ad7018d0370e0a040a5cafdc42c2b8f320d68
author: Paul Brossier <piem@piem.org>
date: Sun Feb 23 08:00:26 EST 2014

src/io/sink_sndfile.h: add do_multi, preset_samplerate, preset_channels, get_samplerate, and get_channels

--- a/src/io/sink_sndfile.c
+++ b/src/io/sink_sndfile.c
@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2012 Paul Brossier <piem@aubio.org>
+  Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
 
   This file is part of aubio.
 
@@ -44,9 +44,12 @@
   smpl_t *scratch_data;
 };
 
+uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s);
+
 aubio_sink_sndfile_t * new_aubio_sink_sndfile(char_t * path, uint_t samplerate) {
   aubio_sink_sndfile_t * s = AUBIO_NEW(aubio_sink_sndfile_t);
-  SF_INFO sfinfo;
+  s->max_size = MAX_SIZE;
+  s->path = path;
 
   if (path == NULL) {
     AUBIO_ERR("sink_sndfile: Aborted opening null path\n");
@@ -53,12 +56,62 @@
     return NULL;
   }
 
+  s->samplerate = 0;
+  s->channels = 0;
+
+  // negative samplerate given, abort
+  if ((sint_t)samplerate < 0) goto beach;
+  // zero samplerate given. do not open yet
+  if ((sint_t)samplerate == 0) return s;
+
   s->samplerate = samplerate;
-  s->max_size = MAX_SIZE;
   s->channels = 1;
-  s->path = path;
 
+  if (aubio_sink_sndfile_open(s) != AUBIO_OK) {;
+    goto beach;
+  }
+  return s;
+
+beach:
+  del_aubio_sink_sndfile(s);
+  return NULL;
+}
+
+uint_t aubio_sink_sndfile_preset_samplerate(aubio_sink_sndfile_t *s, uint_t samplerate)
+{
+  if ((sint_t)(samplerate) <= 0) return AUBIO_FAIL;
+  s->samplerate = samplerate;
+  // automatically open when both samplerate and channels have been set
+  if (s->samplerate != 0 && s->channels != 0) {
+    return aubio_sink_sndfile_open(s);
+  }
+  return AUBIO_OK;
+}
+
+uint_t aubio_sink_sndfile_preset_channels(aubio_sink_sndfile_t *s, uint_t channels)
+{
+  if ((sint_t)(channels) <= 0) return AUBIO_FAIL;
+  s->channels = channels;
+  // automatically open when both samplerate and channels have been set
+  if (s->samplerate != 0 && s->channels != 0) {
+    return aubio_sink_sndfile_open(s);
+  }
+  return AUBIO_OK;
+}
+
+uint_t aubio_sink_sndfile_get_samplerate(aubio_sink_sndfile_t *s)
+{
+  return s->samplerate;
+}
+
+uint_t aubio_sink_sndfile_get_channels(aubio_sink_sndfile_t *s)
+{
+  return s->channels;
+}
+
+uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s) {
   /* set output format */
+  SF_INFO sfinfo;
   AUBIO_MEMSET(&sfinfo, 0, sizeof (sfinfo));
   sfinfo.samplerate = s->samplerate;
   sfinfo.channels   = s->channels;
@@ -70,8 +123,7 @@
   if (s->handle == NULL) {
     /* show libsndfile err msg */
     AUBIO_ERR("sink_sndfile: Failed opening %s. %s\n", s->path, sf_strerror (NULL));
-    AUBIO_FREE(s);
-    return NULL;
+    return AUBIO_FAIL;
   }	
 
   s->scratch_size = s->max_size*s->channels;
@@ -79,12 +131,11 @@
   if (s->scratch_size >= MAX_SIZE * MAX_CHANNELS) {
     AUBIO_ERR("sink_sndfile: %d x %d exceeds maximum aubio_sink_sndfile buffer size %d\n",
         s->max_size, s->channels, MAX_CHANNELS * MAX_CHANNELS);
-    AUBIO_FREE(s);
-    return NULL;
+    return AUBIO_FAIL;
   }
   s->scratch_data = AUBIO_ARRAY(float,s->scratch_size);
 
-  return s;
+  return AUBIO_OK;
 }
 
 void aubio_sink_sndfile_do(aubio_sink_sndfile_t *s, fvec_t * write_data, uint_t write){
--- a/src/io/sink_sndfile.h
+++ b/src/io/sink_sndfile.h
@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2012-2013 Paul Brossier <piem@aubio.org>
+  Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
 
   This file is part of aubio.
 
@@ -38,6 +38,7 @@
 extern "C" {
 #endif
 
+/** sink_sndfile object */
 typedef struct _aubio_sink_sndfile_t aubio_sink_sndfile_t;
 
 /**
@@ -51,11 +52,69 @@
 
   Creates a new sink object.
 
+  If samplerate is set to 0, the creation of the file will be delayed until
+  both ::aubio_sink_preset_samplerate and ::aubio_sink_preset_channels have
+  been called.
+
 */
 aubio_sink_sndfile_t * new_aubio_sink_sndfile(char_t * uri, uint_t samplerate);
 
 /**
 
+  preset sink samplerate
+
+  \param s sink, created with ::new_aubio_sink_sndfile
+  \param samplerate samplerate to preset the sink to, in Hz
+
+  \return 0 on success, 1 on error
+
+  Preset the samplerate of the sink. The file should have been created using a
+  samplerate of 0.
+
+  The file will be opened only when both samplerate and channels have been set.
+
+*/
+uint_t aubio_sink_sndfile_preset_samplerate(aubio_sink_sndfile_t *s, uint_t samplerate);
+
+/**
+
+  preset sink channels
+
+  \param s sink, created with ::new_aubio_sink_sndfile
+  \param channels number of channels to preset the sink to
+
+  \return 0 on success, 1 on error
+
+  Preset the samplerate of the sink. The file should have been created using a
+  samplerate of 0.
+
+  The file will be opened only when both samplerate and channels have been set.
+
+*/
+uint_t aubio_sink_sndfile_preset_channels(aubio_sink_sndfile_t *s, uint_t channels);
+
+/**
+
+  get samplerate of sink object
+
+  \param s sink object, created with ::new_aubio_sink_sndfile
+  \return samplerate, in Hz
+
+*/
+uint_t aubio_sink_sndfile_get_samplerate(aubio_sink_sndfile_t *s);
+
+/**
+
+  get channels of sink object
+
+  \param s sink object, created with ::new_aubio_sink_sndfile
+  \return number of channels
+
+*/
+uint_t aubio_sink_sndfile_get_channels(aubio_sink_sndfile_t *s);
+
+/**
+
   write monophonic vector of length hop_size to sink
 
   \param s sink, created with ::new_aubio_sink_sndfile
@@ -64,6 +123,17 @@
 
 */
 void aubio_sink_sndfile_do(aubio_sink_sndfile_t * s, fvec_t * write_data, uint_t write);
+
+/**
+
+  write polyphonic vector of length hop_size to sink
+
+  \param s sink, created with ::new_aubio_sink_sndfile
+  \param write_data ::fmat_t samples to write to sink
+  \param write number of frames to write
+
+*/
+void aubio_sink_sndfile_do_multi(aubio_sink_sndfile_t * s, fmat_t * write_data, uint_t write);
 
 /**
 
--- /dev/null
+++ b/tests/src/io/test-sink_sndfile-multi.c
@@ -1,0 +1,78 @@
+#define AUBIO_UNSTABLE 1
+#include <aubio.h>
+#include "utils_tests.h"
+
+// this file uses the unstable aubio api, please use aubio_sink instead
+// see src/io/sink.h and tests/src/sink/test-sink.c
+
+int main (int argc, char **argv)
+{
+  sint_t err = 0;
+
+  if (argc < 3) {
+    err = 2;
+    PRINT_ERR("not enough arguments\n");
+    PRINT_MSG("usage: %s <input_path> <output_path> [samplerate] [channels] [hop_size]\n", argv[0]);
+    return err;
+  }
+
+#ifdef __APPLE__
+  uint_t samplerate = 0;
+  uint_t channels = 0;
+  uint_t hop_size = 512;
+  uint_t n_frames = 0, read = 0;
+
+  char_t *source_path = argv[1];
+  char_t *sink_path = argv[2];
+
+  if ( argc >= 4 ) samplerate = atoi(argv[3]);
+  if ( argc >= 5 ) channels = atoi(argv[4]);
+  if ( argc >= 6 ) hop_size = atoi(argv[5]);
+  if ( argc >= 7 ) {
+    err = 2;
+    PRINT_ERR("too many arguments\n");
+    return err;
+  }
+
+  aubio_source_t *i = new_aubio_source(source_path, samplerate, hop_size);
+  if (!i) { err = 1; goto beach_source; }
+
+  if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(i);
+  if (channels == 0 ) channels = aubio_source_get_channels(i);
+
+  fmat_t *mat = new_fmat(channels, hop_size);
+  if (!mat) { err = 1; goto beach_fmat; }
+
+  aubio_sink_sndfile_t *o = new_aubio_sink_sndfile(sink_path, 0);
+  if (!o) { err = 1; goto beach_sink; }
+  err = aubio_sink_sndfile_preset_samplerate(o, samplerate);
+  if (err) { goto beach; }
+  err = aubio_sink_sndfile_preset_channels(o, channels);
+  if (err) { goto beach; }
+
+  do {
+    aubio_source_do_multi(i, mat, &read);
+    aubio_sink_sndfile_do_multi(o, mat, read);
+    n_frames += read;
+  } while ( read == hop_size );
+
+  PRINT_MSG("read %d frames at %dHz in %d channels (%d blocks) from %s written to %s\n",
+      n_frames, samplerate, channels, n_frames / hop_size,
+      source_path, sink_path);
+  PRINT_MSG("wrote %s with %dHz in %d channels\n", sink_path,
+      aubio_sink_sndfile_get_samplerate(o),
+      aubio_sink_sndfile_get_channels(o) );
+
+beach:
+  del_aubio_sink_sndfile(o);
+beach_sink:
+  del_fmat(mat);
+beach_fmat:
+  del_aubio_source(i);
+beach_source:
+#else
+  err = 3;
+  PRINT_ERR("aubio was not compiled with aubio_sink_sndfile\n");
+#endif /* __APPLE__ */
+  return err;
+}