fix vp8_ namespace issues

Make functions only referenced from one translation unit static. Other
symbols with extern linkage get a vp8/vpx prefix.

Change-Id: I928c7e0d0d36e89ac78cb54ff8bb28748727834f

vp8/common/entropymode.c

@@ -160,7 +160,7 @@ const vp8_tree_index vp8_small_mvtree [14] =
 void vp8_init_mbmode_probs(VP8_COMMON *x)
 {
     vpx_memcpy(x->fc.ymode_prob, vp8_ymode_prob, sizeof(vp8_ymode_prob));
-    vpx_memcpy(x->kf_ymode_prob, kf_ymode_prob, sizeof(kf_ymode_prob));
+    vpx_memcpy(x->kf_ymode_prob, vp8_kf_ymode_prob, sizeof(vp8_kf_ymode_prob));
     vpx_memcpy(x->fc.uv_mode_prob, vp8_uv_mode_prob, sizeof(vp8_uv_mode_prob));
     vpx_memcpy(x->kf_uv_mode_prob, vp8_kf_uv_mode_prob, sizeof(vp8_kf_uv_mode_prob));
     vpx_memcpy(x->fc.sub_mv_ref_prob, sub_mv_ref_prob, sizeof(sub_mv_ref_prob));

vp8/common/vp8_entropymodedata.h

@@ -94,7 +94,7 @@ const vp8_prob vp8_ymode_prob[VP8_YMODES-1] =
     112, 86, 140, 37
 };
 
-const vp8_prob kf_ymode_prob[VP8_YMODES-1] =
+const vp8_prob vp8_kf_ymode_prob[VP8_YMODES-1] =
 {
     145, 156, 163, 128
 };

vp8/decoder/decodframe.c

@@ -53,7 +53,7 @@ void vp8cx_init_de_quantizer(VP8D_COMP *pbi)
     }
 }
 
-void mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd)
+void vp8_mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd)
 {
     int i;
     int QIndex;
@@ -117,7 +117,7 @@ static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
     mode = xd->mode_info_context->mbmi.mode;
 
     if (xd->segmentation_enabled)
-        mb_init_dequantizer(pbi, xd);
+        vp8_mb_init_dequantizer(pbi, xd);
 
 
 #if CONFIG_ERROR_CONCEALMENT
@@ -980,7 +980,7 @@ int vp8_decode_frame(VP8D_COMP *pbi)
             vp8cx_init_de_quantizer(pbi);
 
         /* MB level dequantizer setup */
-        mb_init_dequantizer(pbi, &pbi->mb);
+        vp8_mb_init_dequantizer(pbi, &pbi->mb);
     }
 
     /* Determine if the golden frame or ARF buffer should be updated and how.

vp8/decoder/threading.c

@@ -28,7 +28,7 @@
 #include "error_concealment.h"
 #endif
 
-extern void mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd);
+extern void vp8_mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd);
 
 static void setup_decoding_thread_data(VP8D_COMP *pbi, MACROBLOCKD *xd, MB_ROW_DEC *mbrd, int count)
 {
@@ -106,7 +106,7 @@ static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, unsigned int mb_i
     mode = xd->mode_info_context->mbmi.mode;
 
     if (xd->segmentation_enabled)
-        mb_init_dequantizer(pbi, xd);
+        vp8_mb_init_dequantizer(pbi, xd);
 
 
 #if CONFIG_ERROR_CONCEALMENT

vp8/encoder/denoising.c

@@ -15,11 +15,11 @@
 #include "vpx_mem/vpx_mem.h"
 #include "vpx_rtcd.h"
 
-const unsigned int NOISE_MOTION_THRESHOLD = 20*20;
-const unsigned int NOISE_DIFF2_THRESHOLD = 75;
+static const unsigned int NOISE_MOTION_THRESHOLD = 20*20;
+static const unsigned int NOISE_DIFF2_THRESHOLD = 75;
 // SSE_DIFF_THRESHOLD is selected as ~95% confidence assuming var(noise) ~= 100.
-const unsigned int SSE_DIFF_THRESHOLD = 16*16*20;
-const unsigned int SSE_THRESHOLD = 16*16*40;
+static const unsigned int SSE_DIFF_THRESHOLD = 16*16*20;
+static const unsigned int SSE_THRESHOLD = 16*16*40;
 
 static uint8_t blend(uint8_t state, uint8_t sample, uint8_t factor_q8)
 {

vp8/encoder/firstpass.c

@@ -868,7 +868,7 @@ extern const int vp8_bits_per_mb[2][QINDEX_RANGE];
 //
 
 
-double bitcost( double prob )
+static double bitcost( double prob )
 {
     return -(log( prob ) / log( 2.0 ));
 }

vp8/encoder/onyx_if.c

@@ -1339,7 +1339,7 @@ static void init_config(VP8_COMP *cpi, VP8_CONFIG *oxcf)
 #endif
 }
 
-void update_layer_contexts (VP8_COMP *cpi)
+static void update_layer_contexts (VP8_COMP *cpi)
 {
     VP8_CONFIG *oxcf = &cpi->oxcf;
 
@@ -3020,7 +3020,7 @@ static int recode_loop_test( VP8_COMP *cpi,
     return force_recode;
 }
 
-void update_reference_frames(VP8_COMMON *cm)
+static void update_reference_frames(VP8_COMMON *cm)
 {
     YV12_BUFFER_CONFIG *yv12_fb = cm->yv12_fb;