signed char -> int8_t for consistency

Change-Id: I5cf978071fbb55040d2be88f627b600484988520
diff --git a/av1/common/av1_loopfilter.h b/av1/common/av1_loopfilter.h
index 76ca8d8..1c0de80 100644
--- a/av1/common/av1_loopfilter.h
+++ b/av1/common/av1_loopfilter.h
@@ -53,12 +53,12 @@
   // 0 = Intra, Last, Last2+Last3(CONFIG_EXT_REFS),
   // GF, BRF(CONFIG_EXT_REFS),
   // ARF2(CONFIG_EXT_REFS+CONFIG_ALTREF2), ARF
-  signed char ref_deltas[TOTAL_REFS_PER_FRAME];
-  signed char last_ref_deltas[TOTAL_REFS_PER_FRAME];
+  int8_t ref_deltas[TOTAL_REFS_PER_FRAME];
+  int8_t last_ref_deltas[TOTAL_REFS_PER_FRAME];
 
   // 0 = ZERO_MV, MV
-  signed char mode_deltas[MAX_MODE_LF_DELTAS];
-  signed char last_mode_deltas[MAX_MODE_LF_DELTAS];
+  int8_t mode_deltas[MAX_MODE_LF_DELTAS];
+  int8_t last_mode_deltas[MAX_MODE_LF_DELTAS];
 };
 
 // Need to align this structure so when it is declared and
diff --git a/av1/encoder/aq_cyclicrefresh.c b/av1/encoder/aq_cyclicrefresh.c
index 05aa28c..5f595d5 100644
--- a/av1/encoder/aq_cyclicrefresh.c
+++ b/av1/encoder/aq_cyclicrefresh.c
@@ -39,7 +39,7 @@
   // RD mult. parameters for segment 1.
   int rdmult;
   // Cyclic refresh map.
-  signed char *map;
+  int8_t *map;
   // Map of the last q a block was coded at.
   uint8_t *last_coded_q_map;
   // Thresholds applied to the projected rate/distortion of the coding block,
diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index b6d29ae..014686d 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -63,9 +63,9 @@
   int nmv_costs_hp[NMV_CONTEXTS][2][MV_VALS];
 
   // 0 = Intra, Last, GF, ARF
-  signed char last_ref_lf_deltas[TOTAL_REFS_PER_FRAME];
+  int8_t last_ref_lf_deltas[TOTAL_REFS_PER_FRAME];
   // 0 = ZERO_MV, MV
-  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
+  int8_t last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
 
   FRAME_CONTEXT fc;
 } CODING_CONTEXT;
diff --git a/av1/encoder/segmentation.c b/av1/encoder/segmentation.c
index b61df43..79a777d 100644
--- a/av1/encoder/segmentation.c
+++ b/av1/encoder/segmentation.c
@@ -32,7 +32,7 @@
   seg->update_data = 0;
 }
 
-void av1_set_segment_data(struct segmentation *seg, signed char *feature_data,
+void av1_set_segment_data(struct segmentation *seg, int8_t *feature_data,
                           unsigned char abs_delta) {
   seg->abs_delta = abs_delta;
 
diff --git a/av1/encoder/segmentation.h b/av1/encoder/segmentation.h
index c1491ca..1d24ed1 100644
--- a/av1/encoder/segmentation.h
+++ b/av1/encoder/segmentation.h
@@ -37,7 +37,7 @@
 //
 // abs_delta = SEGMENT_DELTADATA (deltas) abs_delta = SEGMENT_ABSDATA (use
 // the absolute values given).
-void av1_set_segment_data(struct segmentation *seg, signed char *feature_data,
+void av1_set_segment_data(struct segmentation *seg, int8_t *feature_data,
                           unsigned char abs_delta);
 
 void av1_choose_segmap_coding_method(AV1_COMMON *cm, MACROBLOCKD *xd);