ssr: Fix building with OSS materials

Change-Id: I466816af5e1258f61401edf3eaf37ed7a862292e
diff --git a/hal/audio_extn/Android.mk b/hal/audio_extn/Android.mk
index 1d10fd5..7de7149 100644
--- a/hal/audio_extn/Android.mk
+++ b/hal/audio_extn/Android.mk
@@ -128,6 +128,10 @@
   MULTIPLE_HW_VARIANTS_ENABLED := true
 endif
 
+ifeq ($(QCPATH),)
+     LOCAL_CFLAGS += -D_OSS
+endif
+
 LOCAL_SRC_FILES:= ssr.c
 
 LOCAL_CFLAGS += \
diff --git a/hal/audio_extn/ssr.c b/hal/audio_extn/ssr.c
index d83b508..c3b0bfe 100644
--- a/hal/audio_extn/ssr.c
+++ b/hal/audio_extn/ssr.c
@@ -36,7 +36,19 @@
 #include "audio_extn.h"
 #include "platform.h"
 #include "platform_api.h"
+#ifndef _OSS
 #include "surround_rec_interface.h"
+#else
+typedef struct {
+    const char *name;
+    char *(*get_param_fn)(void *h);
+} get_param_data_t;
+
+typedef struct {
+    const char *name;
+    void (*set_param_fn)(void *h, const char *val);
+} set_param_data_t;
+#endif
 
 #ifdef DYNAMIC_LOG_ENABLED
 #include <log_xml_parser.h>