Limit more variables to file scope

Change-Id: I30219d626316776eb73b4205d63376fa3dbc6361

3 files changed, 17 insertions, 24 deletions

diff --git a/lib/rbcodec/codecs/libfaad/codebook/hcb.h b/lib/rbcodec/codecs/libfaad/codebook/hcb.h
index eaefdbf..53e234a 100644
--- a/lib/rbcodec/codecs/libfaad/codebook/hcb.h
+++ b/lib/rbcodec/codecs/libfaad/codebook/hcb.h
@@ -112,16 +112,6 @@ typedef struct
     int8_t data[2];
 } hcb_bin_pair;
 
-hcb *hcb_table[];
-hcb_2_quad *hcb_2_quad_table[];
-hcb_2_pair *hcb_2_pair_table[];
-hcb_bin_pair *hcb_bin_table[];
-uint8_t hcbN[];
-uint8_t unsigned_cb[];
-int hcb_2_quad_table_size[];
-int hcb_2_pair_table_size[];
-int hcb_bin_table_size[];
-
 #include "codebook/hcb_1.h"
 #include "codebook/hcb_2.h"
 #include "codebook/hcb_3.h"
diff --git a/lib/rbcodec/codecs/libfaad/huffman.c b/lib/rbcodec/codecs/libfaad/huffman.c
index bea0dd7..93e3a2d 100644
--- a/lib/rbcodec/codecs/libfaad/huffman.c
+++ b/lib/rbcodec/codecs/libfaad/huffman.c
@@ -76,33 +76,33 @@ int8_t huffman_scale_factor(bitfile *ld)
 }
 
 
-hcb *hcb_table[] ICONST_ATTR = {
+static hcb *hcb_table[] ICONST_ATTR = {
     0, hcb1_1, hcb2_1, 0, hcb4_1, 0, hcb6_1, 0, hcb8_1, 0, hcb10_1, hcb11_1
 };
 
-hcb_2_quad *hcb_2_quad_table[] ICONST_ATTR = {
+static hcb_2_quad *hcb_2_quad_table[] ICONST_ATTR = {
     0, hcb1_2, hcb2_2, 0, hcb4_2, 0, 0, 0, 0, 0, 0, 0
 };
 
-hcb_2_pair *hcb_2_pair_table[] ICONST_ATTR = {
+static hcb_2_pair *hcb_2_pair_table[] ICONST_ATTR = {
     0, 0, 0, 0, 0, 0, hcb6_2, 0, hcb8_2, 0, hcb10_2, hcb11_2
 };
 
-hcb_bin_pair *hcb_bin_table[] ICONST_ATTR = {
+static hcb_bin_pair *hcb_bin_table[] ICONST_ATTR = {
     0, 0, 0, 0, 0, hcb5, 0, hcb7, 0, hcb9, 0, 0
 };
 
-uint8_t hcbN[] ICONST_ATTR = { 0, 5, 5, 0, 5, 0, 5, 0, 5, 0, 6, 5 };
+static uint8_t hcbN[] ICONST_ATTR = { 0, 5, 5, 0, 5, 0, 5, 0, 5, 0, 6, 5 };
 
 /* defines whether a huffman codebook is unsigned or not */
 /* Table 4.6.2 */
-uint8_t unsigned_cb[] ICONST_ATTR = { 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0,
+static uint8_t unsigned_cb[] ICONST_ATTR = { 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0,
               /* codebook 16 to 31 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
 };
 
-int hcb_2_quad_table_size[] ICONST_ATTR = { 0, 114, 86, 0, 185, 0, 0, 0, 0, 0, 0, 0 };
-int hcb_2_pair_table_size[] ICONST_ATTR = { 0, 0, 0, 0, 0, 0, 126, 0, 83, 0, 210, 373 };
-int hcb_bin_table_size[] ICONST_ATTR = { 0, 0, 0, 161, 0, 161, 0, 127, 0, 337, 0, 0 };
+static int hcb_2_quad_table_size[] ICONST_ATTR = { 0, 114, 86, 0, 185, 0, 0, 0, 0, 0, 0, 0 };
+static int hcb_2_pair_table_size[] ICONST_ATTR = { 0, 0, 0, 0, 0, 0, 126, 0, 83, 0, 210, 373 };
+static int hcb_bin_table_size[] ICONST_ATTR = { 0, 0, 0, 161, 0, 161, 0, 127, 0, 337, 0, 0 };
 
 #define FAAD_GET_SIGN(idx)          \
         if (sp[idx])                \
@@ -113,6 +113,9 @@ static INLINE void huffman_sign_bits_pair(bitfile *ld, int16_t *sp)
 {
     FAAD_GET_SIGN(0)
     FAAD_GET_SIGN(1)
+
+    /* silence compiler warning about unused globals */
+    (void)unsigned_cb;
 }
 
 static INLINE void huffman_sign_bits_quad(bitfile *ld, int16_t *sp)
diff --git a/lib/rbcodec/codecs/libfaad/syntax.c b/lib/rbcodec/codecs/libfaad/syntax.c
index d3d7f9e..65e1bf7 100644
--- a/lib/rbcodec/codecs/libfaad/syntax.c
+++ b/lib/rbcodec/codecs/libfaad/syntax.c
@@ -558,8 +558,8 @@ void raw_data_block(NeAACDecHandle hDecoder, NeAACDecFrameInfo *hInfo,
 
 /* Table 4.4.4 and */
 /* Table 4.4.9 */
-int16_t spec_data[FRAME_LEN] MEM_ALIGN_ATTR = {0};
-element sce;
+static int16_t spec_data[FRAME_LEN] MEM_ALIGN_ATTR = {0};
+static element sce;
 static uint8_t single_lfe_channel_element(NeAACDecHandle hDecoder, bitfile *ld,
                                           uint8_t channel, uint8_t *tag)
 {
@@ -604,9 +604,9 @@ static uint8_t single_lfe_channel_element(NeAACDecHandle hDecoder, bitfile *ld,
 
 /* Table 4.4.5 */
 
-int16_t spec_data1[FRAME_LEN] IBSS_ATTR MEM_ALIGN_ATTR;
-int16_t spec_data2[FRAME_LEN] IBSS_ATTR MEM_ALIGN_ATTR;
-element cpe;
+static int16_t spec_data1[FRAME_LEN] IBSS_ATTR MEM_ALIGN_ATTR;
+static int16_t spec_data2[FRAME_LEN] IBSS_ATTR MEM_ALIGN_ATTR;
+static element cpe;
 static uint8_t channel_pair_element(NeAACDecHandle hDecoder, bitfile *ld,
                                     uint8_t channels, uint8_t *tag)
 {