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src/io/source_apple_audio.{c,h}: if samplerate = 1, use actual source one

--- a/src/io/source_apple_audio.c

+++ b/src/io/source_apple_audio.c

@@ -89,6 +89,11 @@

       kExtAudioFileProperty_FileDataFormat, &propSize, &fileFormat);

   if (err) { AUBIO_ERROR("error in ExtAudioFileGetProperty, %d\n", (int)err); goto beach;}

+  if (s->samplerate == 1) {

+    clientFormat.mSampleRate = fileFormat.mSampleRate;

+    s->samplerate = fileFormat.mSampleRate;

+  }

+

   // set the client format description

   err = ExtAudioFileSetProperty(s->audioFile, kExtAudioFileProperty_ClientDataFormat,

       propSize, &clientFormat);

@@ -173,6 +178,10 @@

   freeAudioBufferList(&s->bufferList);

   AUBIO_FREE(s);

   return;

+}

+

+uint_t aubio_source_apple_audio_get_samplerate(aubio_source_apple_audio_t * s) {

+  return s->samplerate;

 }

 #endif /* __APPLE__ */

--- a/src/io/source_apple_audio.h

+++ b/src/io/source_apple_audio.h

@@ -24,6 +24,7 @@

 typedef struct _aubio_source_apple_audio_t aubio_source_apple_audio_t;

 aubio_source_apple_audio_t * new_aubio_source_apple_audio(char_t * path, uint_t samplerate, uint_t block_size);

 void aubio_source_apple_audio_do(aubio_source_apple_audio_t * s, fvec_t * read_to, uint_t * read);

+uint_t aubio_source_apple_audio_get_samplerate(aubio_source_apple_audio_t * s);

 void del_aubio_source_apple_audio(aubio_source_apple_audio_t * s);

 #endif /* _AUBIO_SOURCE_APPLE_AUDIO_H */