Changes in src/io/source_apple_audio.c [8c43bf7:4865e4b]

File:

• src/io/source_apple_audio.c (modified) (10 diffs)

src/io/source_apple_audio.c

@@ -23 +23 @@
 #include "aubio_priv.h"
 #include "fvec.h"
+#include "fmat.h"
 #include "io/source_apple_audio.h"
 
@@ -37 +38 @@
 struct _aubio_source_apple_audio_t {
   uint_t channels;
-  uint_t samplerate;
+  uint_t samplerate;          //< requested samplerate
+  uint_t source_samplerate;   //< actual source samplerate
   uint_t block_size;
 
@@ -56 +58 @@
   s->path = path;
   s->block_size = block_size;
-  s->channels = 1;
 
   OSStatus err = noErr;
@@ -81 +82 @@
   }
   s->samplerate = samplerate;
+  s->source_samplerate = fileFormat.mSampleRate;
+  s->channels = fileFormat.mChannelsPerFrame;
 
   AudioStreamBasicDescription clientFormat;
@@ -98 +101 @@
   err = ExtAudioFileSetProperty(s->audioFile, kExtAudioFileProperty_ClientDataFormat,
       propSize, &clientFormat);
-  if (err) { AUBIO_ERROR("error in ExtAudioFileSetProperty, %d\n", (int)err); goto beach;}
-
-#if 0
+  if (err) {
+      AUBIO_ERROR("error in ExtAudioFileSetProperty, %d\n", (int)err);
+#if 1
   // print client and format descriptions
   AUBIO_DBG("Opened %s\n", s->path);
@@ -117 +120 @@
   AUBIO_DBG("file/client Format.mReserved         : %6d / %d\n",    (int)fileFormat.mReserved        , (int)clientFormat.mReserved);
 #endif
+      goto beach;
+  }
 
   // compute the size of the segments needed to read the input file
@@ -127 +132 @@
     AUBIO_WRN("up-sampling %s from %0.2fHz to %0.2fHz\n", s->path, fileFormat.mSampleRate, clientFormat.mSampleRate);
   } else {
-    assert (segmentSize == samples );
+    assert ( segmentSize == samples );
     //AUBIO_DBG("not resampling, segmentSize %d, block_size %d\n", segmentSize, s->block_size);
   }
@@ -144 +149 @@
   UInt32 c, v, loadedPackets = s->block_size;
   OSStatus err = ExtAudioFileRead(s->audioFile, &loadedPackets, &s->bufferList);
-  if (err) { AUBIO_ERROR("error in ExtAudioFileRead, %d\n", (int)err); goto beach;}
+  if (err) { AUBIO_ERROR("error in ExtAudioFileRead %s %d\n", s->path, (int)err); goto beach;}
 
   short *data = (short*)s->bufferList.mBuffers[0].mData;
@@ -164 +169 @@
   }
 
+  *read = (uint_t)loadedPackets;
+  return;
+beach:
+  *read = 0;
+  return;
+}
+
+void aubio_source_apple_audio_do_multi(aubio_source_apple_audio_t *s, fmat_t * read_to, uint_t * read) {
+  UInt32 c, v, loadedPackets = s->block_size;
+  OSStatus err = ExtAudioFileRead(s->audioFile, &loadedPackets, &s->bufferList);
+  if (err) { AUBIO_ERROR("source_apple_audio: error in ExtAudioFileRead, %d\n", (int)err); goto beach;}
+
+  short *data = (short*)s->bufferList.mBuffers[0].mData;
+
+  smpl_t **buf = read_to->data;
+
+  for (v = 0; v < loadedPackets; v++) {
+    for (c = 0; c < s->channels; c++) {
+      buf[c][v] = SHORT_TO_FLOAT(data[ v * s->channels + c]);
+    }
+  }
+  // short read, fill with zeros
+  if (loadedPackets < s->block_size) {
+    for (v = loadedPackets; v < s->block_size; v++) {
+      for (c = 0; c < s->channels; c++) {
+        buf[c][v] = 0.;
+      }
+    }
+  }
   *read = (uint_t)loadedPackets;
   return;
@@ -182 +216 @@
 }
 
+uint_t aubio_source_apple_audio_seek (aubio_source_apple_audio_t * s, uint_t pos) {
+  SInt64 resampled_pos = (SInt64)ROUND( pos * s->source_samplerate * 1. / s->samplerate );
+  OSStatus err = ExtAudioFileSeek(s->audioFile, resampled_pos);
+  if (err) AUBIO_ERROR("source_apple_audio: error in ExtAudioFileSeek (%d)\n", (int)err);
+  return err;
+}
+
 uint_t aubio_source_apple_audio_get_samplerate(aubio_source_apple_audio_t * s) {
   return s->samplerate;
 }
 
+uint_t aubio_source_apple_audio_get_channels(aubio_source_apple_audio_t * s) {
+  return s->channels;
+}
+
 #endif /* __APPLE__ */