better alac management

components/codecs/inc/alac/alac_wrapper.h

@@ -19,7 +19,7 @@ extern "C" {
 
 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 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);