applied platformio structure

lib/codecs/inc/alac/alac_wrapper.h

@@ -0,0 +1,31 @@
+/*****************************************************************************
+ * alac_wrapper.h: ALAC coder wrapper
+ *
+ * (c) Philippe G. 2019, philippe_44@outlook.com
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ * 
+ */
+ 
+#ifndef __ALAC_WRAPPER_H_
+#define __ALAC_WRAPPER_H_
+
+struct alac_codec_s;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct alac_codec_s *alac_create_decoder(int magic_cookie_size, unsigned char *magic_cookie,
+								unsigned char *sample_size, unsigned *sample_rate,
+								unsigned char *channels, unsigned int *block_size);
+void alac_delete_decoder(struct alac_codec_s *codec);
+bool alac_to_pcm(struct alac_codec_s *codec, unsigned char* input,
+				 unsigned char *output, char channels, unsigned *out_frames);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif