1 files changed, 6 insertions, 1 deletions
diff --git a/adpcm.h b/adpcm.h
index d20dbc5717..939f7656b6 100644
--- a/adpcm.h
+++ b/adpcm.h
@@ -10,6 +10,11 @@
 #define MS_ADPCM_SAMPLES_PER_BLOCK \
   ((sh_audio->wf->nBlockAlign - MS_ADPCM_PREAMBLE_SIZE) * 2)
 
+#define FOX61_ADPCM_PREAMBLE_SIZE 4
+#define FOX61_ADPCM_BLOCK_SIZE 0x200
+#define FOX61_ADPCM_SAMPLES_PER_BLOCK \
+  (((FOX61_ADPCM_BLOCK_SIZE - FOX61_ADPCM_PREAMBLE_SIZE) * 2) + 1)
+
 // pretend there's such a thing as mono for this format
 #define FOX62_ADPCM_PREAMBLE_SIZE 8
 #define FOX62_ADPCM_BLOCK_SIZE 0x400
@@ -20,7 +25,7 @@ int ima_adpcm_decode_block(unsigned short *output, unsigned char *input,
   int channels);
 int ms_adpcm_decode_block(unsigned short *output, unsigned char *input,
   int channels, int block_size);
+int fox61_adpcm_decode_block(unsigned short *output, unsigned char *input);
 int fox62_adpcm_decode_block(unsigned short *output, unsigned char *input,
   int channels);
-
 #endif