shithub: libvpx

Download patch

ref: ac1e1b698f722e039bebeac3bc93606b6014aac0
parent: d41781560e69adc1b18ad40a5bfd8ab88cb6d98f
parent: bf82514b541089f0a23d504c563d19ebcfdf3c02
author: Yaowu Xu <[email protected]>
date: Tue Jul 21 00:09:07 EDT 2015

Merge "vpx_dsp/bitreader.h: vp9_->vpx_"

--- a/test/vp9_boolcoder_test.cc
+++ b/test/vp9_boolcoder_test.cc
@@ -69,8 +69,8 @@
         // First bit should be zero
         GTEST_ASSERT_EQ(bw_buffer[0] & 0x80, 0);
 
-        vp9_reader br;
-        vp9_reader_init(&br, bw_buffer, kBufferSize, NULL, NULL);
+        vpx_reader br;
+        vpx_reader_init(&br, bw_buffer, kBufferSize, NULL, NULL);
         bit_rnd.Reset(random_seed);
         for (int i = 0; i < kBitsToTest; ++i) {
           if (bit_method == 2) {
@@ -78,7 +78,7 @@
           } else if (bit_method == 3) {
             bit = bit_rnd(2);
           }
-          GTEST_ASSERT_EQ(vp9_read(&br, probas[i]), bit)
+          GTEST_ASSERT_EQ(vpx_read(&br, probas[i]), bit)
               << "pos: " << i << " / " << kBitsToTest
               << " bit_method: " << bit_method
               << " method: " << method;
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -166,7 +166,7 @@
   int up_available;
   int left_available;
 
-  const vp9_prob (*partition_probs)[PARTITION_TYPES - 1];
+  const vpx_prob (*partition_probs)[PARTITION_TYPES - 1];
 
   /* Distance of MB away from frame edges */
   int mb_to_left_edge;
@@ -262,7 +262,7 @@
   }
 }
 
-static INLINE const vp9_prob *get_y_mode_probs(const MODE_INFO *mi,
+static INLINE const vpx_prob *get_y_mode_probs(const MODE_INFO *mi,
                                                const MODE_INFO *above_mi,
                                                const MODE_INFO *left_mi,
                                                int block) {
--- a/vp9/common/vp9_entropy.c
+++ b/vp9/common/vp9_entropy.c
@@ -27,30 +27,30 @@
   -CATEGORY5_TOKEN, -CATEGORY6_TOKEN   // 7 = CAT_FIVE
 };
 
-const vp9_prob vp9_cat1_prob[] = { 159 };
-const vp9_prob vp9_cat2_prob[] = { 165, 145 };
-const vp9_prob vp9_cat3_prob[] = { 173, 148, 140 };
-const vp9_prob vp9_cat4_prob[] = { 176, 155, 140, 135 };
-const vp9_prob vp9_cat5_prob[] = { 180, 157, 141, 134, 130 };
-const vp9_prob vp9_cat6_prob[] = {
+const vpx_prob vp9_cat1_prob[] = { 159 };
+const vpx_prob vp9_cat2_prob[] = { 165, 145 };
+const vpx_prob vp9_cat3_prob[] = { 173, 148, 140 };
+const vpx_prob vp9_cat4_prob[] = { 176, 155, 140, 135 };
+const vpx_prob vp9_cat5_prob[] = { 180, 157, 141, 134, 130 };
+const vpx_prob vp9_cat6_prob[] = {
     254, 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129
 };
 #if CONFIG_VP9_HIGHBITDEPTH
-const vp9_prob vp9_cat1_prob_high10[] = { 159 };
-const vp9_prob vp9_cat2_prob_high10[] = { 165, 145 };
-const vp9_prob vp9_cat3_prob_high10[] = { 173, 148, 140 };
-const vp9_prob vp9_cat4_prob_high10[] = { 176, 155, 140, 135 };
-const vp9_prob vp9_cat5_prob_high10[] = { 180, 157, 141, 134, 130 };
-const vp9_prob vp9_cat6_prob_high10[] = {
+const vpx_prob vp9_cat1_prob_high10[] = { 159 };
+const vpx_prob vp9_cat2_prob_high10[] = { 165, 145 };
+const vpx_prob vp9_cat3_prob_high10[] = { 173, 148, 140 };
+const vpx_prob vp9_cat4_prob_high10[] = { 176, 155, 140, 135 };
+const vpx_prob vp9_cat5_prob_high10[] = { 180, 157, 141, 134, 130 };
+const vpx_prob vp9_cat6_prob_high10[] = {
     255, 255, 254, 254, 254, 252, 249, 243,
     230, 196, 177, 153, 140, 133, 130, 129
 };
-const vp9_prob vp9_cat1_prob_high12[] = { 159 };
-const vp9_prob vp9_cat2_prob_high12[] = { 165, 145 };
-const vp9_prob vp9_cat3_prob_high12[] = { 173, 148, 140 };
-const vp9_prob vp9_cat4_prob_high12[] = { 176, 155, 140, 135 };
-const vp9_prob vp9_cat5_prob_high12[] = { 180, 157, 141, 134, 130 };
-const vp9_prob vp9_cat6_prob_high12[] = {
+const vpx_prob vp9_cat1_prob_high12[] = { 159 };
+const vpx_prob vp9_cat2_prob_high12[] = { 165, 145 };
+const vpx_prob vp9_cat3_prob_high12[] = { 173, 148, 140 };
+const vpx_prob vp9_cat4_prob_high12[] = { 176, 155, 140, 135 };
+const vpx_prob vp9_cat5_prob_high12[] = { 180, 157, 141, 134, 130 };
+const vpx_prob vp9_cat6_prob_high12[] = {
     255, 255, 255, 255, 254, 254, 254, 252, 249,
     243, 230, 196, 177, 153, 140, 133, 130, 129
 };
@@ -147,7 +147,7 @@
 // by averaging :
 // vp9_pareto8_full[l][node] = (vp9_pareto8_full[l-1][node] +
 //                              vp9_pareto8_full[l+1][node] ) >> 1;
-const vp9_prob vp9_pareto8_full[COEFF_PROB_MODELS][MODEL_NODES] = {
+const vpx_prob vp9_pareto8_full[COEFF_PROB_MODELS][MODEL_NODES] = {
   {  3,  86, 128,   6,  86,  23,  88,  29},
   {  6,  86, 128,  11,  87,  42,  91,  52},
   {  9,  86, 129,  17,  88,  61,  94,  76},
@@ -742,14 +742,14 @@
   }
 };
 
-static void extend_to_full_distribution(vp9_prob *probs, vp9_prob p) {
+static void extend_to_full_distribution(vpx_prob *probs, vpx_prob p) {
   memcpy(probs, vp9_pareto8_full[p = 0 ? 0 : p - 1],
-         MODEL_NODES * sizeof(vp9_prob));
+         MODEL_NODES * sizeof(vpx_prob));
 }
 
-void vp9_model_to_full_probs(const vp9_prob *model, vp9_prob *full) {
+void vp9_model_to_full_probs(const vpx_prob *model, vpx_prob *full) {
   if (full != model)
-    memcpy(full, model, sizeof(vp9_prob) * UNCONSTRAINED_NODES);
+    memcpy(full, model, sizeof(vpx_prob) * UNCONSTRAINED_NODES);
   extend_to_full_distribution(&full[UNCONSTRAINED_NODES], model[PIVOT_NODE]);
 }
 
--- a/vp9/common/vp9_entropy.h
+++ b/vp9/common/vp9_entropy.h
@@ -77,7 +77,7 @@
 
 typedef struct {
   const vp9_tree_index *tree;
-  const vp9_prob *prob;
+  const vpx_prob *prob;
   int len;
   int base_val;
   const int16_t *cost;
@@ -161,9 +161,9 @@
 
 #define MODEL_NODES (ENTROPY_NODES - UNCONSTRAINED_NODES)
 extern const vp9_tree_index vp9_coef_con_tree[TREE_SIZE(ENTROPY_TOKENS)];
-extern const vp9_prob vp9_pareto8_full[COEFF_PROB_MODELS][MODEL_NODES];
+extern const vpx_prob vp9_pareto8_full[COEFF_PROB_MODELS][MODEL_NODES];
 
-typedef vp9_prob vp9_coeff_probs_model[REF_TYPES][COEF_BANDS]
+typedef vpx_prob vp9_coeff_probs_model[REF_TYPES][COEF_BANDS]
                                       [COEFF_CONTEXTS][UNCONSTRAINED_NODES];
 
 typedef unsigned int vp9_coeff_count_model[REF_TYPES][COEF_BANDS]
@@ -170,7 +170,7 @@
                                           [COEFF_CONTEXTS]
                                           [UNCONSTRAINED_NODES + 1];
 
-void vp9_model_to_full_probs(const vp9_prob *model, vp9_prob *full);
+void vp9_model_to_full_probs(const vpx_prob *model, vpx_prob *full);
 
 typedef char ENTROPY_CONTEXT;
 
--- a/vp9/common/vp9_entropymode.c
+++ b/vp9/common/vp9_entropymode.c
@@ -13,7 +13,7 @@
 #include "vp9/common/vp9_onyxc_int.h"
 #include "vp9/common/vp9_seg_common.h"
 
-const vp9_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
+const vpx_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
   {  // above = dc
     { 137,  30,  42, 148, 151, 207,  70,  52,  91 },  // left = dc
     {  92,  45, 102, 136, 116, 180,  74,  90, 100 },  // left = v
@@ -127,7 +127,7 @@
   }
 };
 
-const vp9_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1] = {
+const vpx_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1] = {
   { 144,  11,  54, 157, 195, 130,  46,  58, 108 },  // y = dc
   { 118,  15, 123, 148, 131, 101,  44,  93, 131 },  // y = v
   { 113,  12,  23, 188, 226, 142,  26,  32, 125 },  // y = h
@@ -140,7 +140,7 @@
   { 102,  19,  66, 162, 182, 122,  35,  59, 128 }   // y = tm
 };
 
-static const vp9_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
+static const vpx_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
   {  65,  32,  18, 144, 162, 194,  41,  51,  98 },  // block_size < 8x8
   { 132,  68,  18, 165, 217, 196,  45,  40,  78 },  // block_size < 16x16
   { 173,  80,  19, 176, 240, 193,  64,  35,  46 },  // block_size < 32x32
@@ -147,7 +147,7 @@
   { 221, 135,  38, 194, 248, 121,  96,  85,  29 }   // block_size >= 32x32
 };
 
-static const vp9_prob default_if_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
+static const vpx_prob default_if_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
   { 120,   7,  76, 176, 208, 126,  28,  54, 103 },  // y = dc
   {  48,  12, 154, 155, 139,  90,  34, 117, 119 },  // y = v
   {  67,   6,  25, 204, 243, 158,  13,  21,  96 },  // y = h
@@ -160,7 +160,7 @@
   { 101,  21, 107, 181, 192, 103,  19,  67, 125 }   // y = tm
 };
 
-const vp9_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
+const vpx_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
                                      [PARTITION_TYPES - 1] = {
   // 8x8 -> 4x4
   { 158,  97,  94 },  // a/l both not split
@@ -184,7 +184,7 @@
   {  12,   3,   3 },  // a/l both split
 };
 
-static const vp9_prob default_partition_probs[PARTITION_CONTEXTS]
+static const vpx_prob default_partition_probs[PARTITION_CONTEXTS]
                                              [PARTITION_TYPES - 1] = {
   // 8x8 -> 4x4
   { 199, 122, 141 },  // a/l both not split
@@ -208,7 +208,7 @@
   {  10,   7,   6 },  // a/l both split
 };
 
-static const vp9_prob default_inter_mode_probs[INTER_MODE_CONTEXTS]
+static const vpx_prob default_inter_mode_probs[INTER_MODE_CONTEXTS]
                                               [INTER_MODES - 1] = {
   {2,       173,   34},  // 0 = both zero mv
   {7,       145,   85},  // 1 = one zero mv + one a predicted mv
@@ -244,19 +244,19 @@
   -PARTITION_VERT, -PARTITION_SPLIT
 };
 
-static const vp9_prob default_intra_inter_p[INTRA_INTER_CONTEXTS] = {
+static const vpx_prob default_intra_inter_p[INTRA_INTER_CONTEXTS] = {
   9, 102, 187, 225
 };
 
-static const vp9_prob default_comp_inter_p[COMP_INTER_CONTEXTS] = {
+static const vpx_prob default_comp_inter_p[COMP_INTER_CONTEXTS] = {
   239, 183, 119,  96,  41
 };
 
-static const vp9_prob default_comp_ref_p[REF_CONTEXTS] = {
+static const vpx_prob default_comp_ref_p[REF_CONTEXTS] = {
   50, 126, 123, 221, 226
 };
 
-static const vp9_prob default_single_ref_p[REF_CONTEXTS][2] = {
+static const vpx_prob default_single_ref_p[REF_CONTEXTS][2] = {
   {  33,  16 },
   {  77,  74 },
   { 142, 142 },
@@ -302,11 +302,11 @@
   ct_8x8p[0][1] = tx_count_8x8p[TX_8X8];
 }
 
-static const vp9_prob default_skip_probs[SKIP_CONTEXTS] = {
+static const vpx_prob default_skip_probs[SKIP_CONTEXTS] = {
   192, 128, 64
 };
 
-static const vp9_prob default_switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
+static const vpx_prob default_switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
                                                     [SWITCHABLE_FILTERS - 1] = {
   { 235, 162, },
   { 36, 255, },
--- a/vp9/common/vp9_entropymode.h
+++ b/vp9/common/vp9_entropymode.h
@@ -28,9 +28,9 @@
 struct VP9Common;
 
 struct tx_probs {
-  vp9_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
-  vp9_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
-  vp9_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
+  vpx_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
+  vpx_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
+  vpx_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
 };
 
 struct tx_counts {
@@ -41,19 +41,19 @@
 };
 
 typedef struct frame_contexts {
-  vp9_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
-  vp9_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
-  vp9_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
+  vpx_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
+  vpx_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
+  vpx_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
   vp9_coeff_probs_model coef_probs[TX_SIZES][PLANE_TYPES];
-  vp9_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
+  vpx_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
                                  [SWITCHABLE_FILTERS - 1];
-  vp9_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
-  vp9_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
-  vp9_prob comp_inter_prob[COMP_INTER_CONTEXTS];
-  vp9_prob single_ref_prob[REF_CONTEXTS][2];
-  vp9_prob comp_ref_prob[REF_CONTEXTS];
+  vpx_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
+  vpx_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
+  vpx_prob comp_inter_prob[COMP_INTER_CONTEXTS];
+  vpx_prob single_ref_prob[REF_CONTEXTS][2];
+  vpx_prob comp_ref_prob[REF_CONTEXTS];
   struct tx_probs tx_probs;
-  vp9_prob skip_probs[SKIP_CONTEXTS];
+  vpx_prob skip_probs[SKIP_CONTEXTS];
   nmv_context nmvc;
   int initialized;
 } FRAME_CONTEXT;
@@ -77,10 +77,10 @@
   nmv_context_counts mv;
 } FRAME_COUNTS;
 
-extern const vp9_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
-extern const vp9_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
+extern const vpx_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
+extern const vpx_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
                                         [INTRA_MODES - 1];
-extern const vp9_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
+extern const vpx_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
                                             [PARTITION_TYPES - 1];
 extern const vp9_tree_index vp9_intra_mode_tree[TREE_SIZE(INTRA_MODES)];
 extern const vp9_tree_index vp9_inter_mode_tree[TREE_SIZE(INTER_MODES)];
--- a/vp9/common/vp9_entropymv.h
+++ b/vp9/common/vp9_entropymv.h
@@ -83,18 +83,18 @@
 extern const vp9_tree_index vp9_mv_fp_tree[];
 
 typedef struct {
-  vp9_prob sign;
-  vp9_prob classes[MV_CLASSES - 1];
-  vp9_prob class0[CLASS0_SIZE - 1];
-  vp9_prob bits[MV_OFFSET_BITS];
-  vp9_prob class0_fp[CLASS0_SIZE][MV_FP_SIZE - 1];
-  vp9_prob fp[MV_FP_SIZE - 1];
-  vp9_prob class0_hp;
-  vp9_prob hp;
+  vpx_prob sign;
+  vpx_prob classes[MV_CLASSES - 1];
+  vpx_prob class0[CLASS0_SIZE - 1];
+  vpx_prob bits[MV_OFFSET_BITS];
+  vpx_prob class0_fp[CLASS0_SIZE][MV_FP_SIZE - 1];
+  vpx_prob fp[MV_FP_SIZE - 1];
+  vpx_prob class0_hp;
+  vpx_prob hp;
 } nmv_component;
 
 typedef struct {
-  vp9_prob joints[MV_JOINTS - 1];
+  vpx_prob joints[MV_JOINTS - 1];
   nmv_component comps[2];
 } nmv_context;
 
--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -345,7 +345,7 @@
   xd->partition_probs =
       frame_is_intra_only(cm) ?
           &vp9_kf_partition_probs[0] :
-          (const vp9_prob (*)[PARTITION_TYPES - 1])cm->fc->partition_prob;
+          (const vpx_prob (*)[PARTITION_TYPES - 1])cm->fc->partition_prob;
 }
 
 static INLINE void vp9_init_macroblockd(VP9_COMMON *cm, MACROBLOCKD *xd,
@@ -373,7 +373,7 @@
   set_partition_probs(cm, xd);
 }
 
-static INLINE const vp9_prob* get_partition_probs(const MACROBLOCKD *xd,
+static INLINE const vpx_prob* get_partition_probs(const MACROBLOCKD *xd,
                                                   int ctx) {
   return xd->partition_probs[ctx];
 }
--- a/vp9/common/vp9_pred_common.h
+++ b/vp9/common/vp9_pred_common.h
@@ -47,7 +47,7 @@
   return above_sip + left_sip;
 }
 
-static INLINE vp9_prob vp9_get_pred_prob_seg_id(const struct segmentation *seg,
+static INLINE vpx_prob vp9_get_pred_prob_seg_id(const struct segmentation *seg,
                                                 const MACROBLOCKD *xd) {
   return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
 }
@@ -60,7 +60,7 @@
   return above_skip + left_skip;
 }
 
-static INLINE vp9_prob vp9_get_skip_prob(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_skip_prob(const VP9_COMMON *cm,
                                          const MACROBLOCKD *xd) {
   return cm->fc->skip_probs[vp9_get_skip_context(xd)];
 }
@@ -69,7 +69,7 @@
 
 int vp9_get_intra_inter_context(const MACROBLOCKD *xd);
 
-static INLINE vp9_prob vp9_get_intra_inter_prob(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_intra_inter_prob(const VP9_COMMON *cm,
                                                 const MACROBLOCKD *xd) {
   return cm->fc->intra_inter_prob[vp9_get_intra_inter_context(xd)];
 }
@@ -76,7 +76,7 @@
 
 int vp9_get_reference_mode_context(const VP9_COMMON *cm, const MACROBLOCKD *xd);
 
-static INLINE vp9_prob vp9_get_reference_mode_prob(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_reference_mode_prob(const VP9_COMMON *cm,
                                                    const MACROBLOCKD *xd) {
   return cm->fc->comp_inter_prob[vp9_get_reference_mode_context(cm, xd)];
 }
@@ -84,7 +84,7 @@
 int vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
                                     const MACROBLOCKD *xd);
 
-static INLINE vp9_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
                                                     const MACROBLOCKD *xd) {
   const int pred_context = vp9_get_pred_context_comp_ref_p(cm, xd);
   return cm->fc->comp_ref_prob[pred_context];
@@ -92,7 +92,7 @@
 
 int vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd);
 
-static INLINE vp9_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
                                                        const MACROBLOCKD *xd) {
   return cm->fc->single_ref_prob[vp9_get_pred_context_single_ref_p1(xd)][0];
 }
@@ -99,7 +99,7 @@
 
 int vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd);
 
-static INLINE vp9_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
+static INLINE vpx_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
                                                        const MACROBLOCKD *xd) {
   return cm->fc->single_ref_prob[vp9_get_pred_context_single_ref_p2(xd)][1];
 }
@@ -127,7 +127,7 @@
   return (above_ctx + left_ctx) > max_tx_size;
 }
 
-static INLINE const vp9_prob *get_tx_probs(TX_SIZE max_tx_size, int ctx,
+static INLINE const vpx_prob *get_tx_probs(TX_SIZE max_tx_size, int ctx,
                                            const struct tx_probs *tx_probs) {
   switch (max_tx_size) {
     case TX_8X8:
@@ -142,7 +142,7 @@
   }
 }
 
-static INLINE const vp9_prob *get_tx_probs2(TX_SIZE max_tx_size,
+static INLINE const vpx_prob *get_tx_probs2(TX_SIZE max_tx_size,
                                             const MACROBLOCKD *xd,
                                             const struct tx_probs *tx_probs) {
   return get_tx_probs(max_tx_size, get_tx_size_context(xd), tx_probs);
--- a/vp9/common/vp9_seg_common.h
+++ b/vp9/common/vp9_seg_common.h
@@ -42,8 +42,8 @@
   uint8_t abs_delta;
   uint8_t temporal_update;
 
-  vp9_prob tree_probs[SEG_TREE_PROBS];
-  vp9_prob pred_probs[PREDICTION_PROBS];
+  vpx_prob tree_probs[SEG_TREE_PROBS];
+  vpx_prob pred_probs[PREDICTION_PROBS];
 
   int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX];
   unsigned int feature_mask[MAX_SEGMENTS];
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -74,19 +74,19 @@
   return len != 0 && len <= (size_t)(end - start);
 }
 
-static int decode_unsigned_max(struct vp9_read_bit_buffer *rb, int max) {
+static int decode_unsigned_max(struct vpx_read_bit_buffer *rb, int max) {
   const int data = vp9_rb_read_literal(rb, get_unsigned_bits(max));
   return data > max ? max : data;
 }
 
-static TX_MODE read_tx_mode(vp9_reader *r) {
-  TX_MODE tx_mode = vp9_read_literal(r, 2);
+static TX_MODE read_tx_mode(vpx_reader *r) {
+  TX_MODE tx_mode = vpx_read_literal(r, 2);
   if (tx_mode == ALLOW_32X32)
-    tx_mode += vp9_read_bit(r);
+    tx_mode += vpx_read_bit(r);
   return tx_mode;
 }
 
-static void read_tx_mode_probs(struct tx_probs *tx_probs, vp9_reader *r) {
+static void read_tx_mode_probs(struct tx_probs *tx_probs, vpx_reader *r) {
   int i, j;
 
   for (i = 0; i < TX_SIZE_CONTEXTS; ++i)
@@ -102,7 +102,7 @@
       vp9_diff_update_prob(r, &tx_probs->p32x32[i][j]);
 }
 
-static void read_switchable_interp_probs(FRAME_CONTEXT *fc, vp9_reader *r) {
+static void read_switchable_interp_probs(FRAME_CONTEXT *fc, vpx_reader *r) {
   int i, j;
   for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
     for (i = 0; i < SWITCHABLE_FILTERS - 1; ++i)
@@ -109,7 +109,7 @@
       vp9_diff_update_prob(r, &fc->switchable_interp_prob[j][i]);
 }
 
-static void read_inter_mode_probs(FRAME_CONTEXT *fc, vp9_reader *r) {
+static void read_inter_mode_probs(FRAME_CONTEXT *fc, vpx_reader *r) {
   int i, j;
   for (i = 0; i < INTER_MODE_CONTEXTS; ++i)
     for (j = 0; j < INTER_MODES - 1; ++j)
@@ -117,9 +117,9 @@
 }
 
 static REFERENCE_MODE read_frame_reference_mode(const VP9_COMMON *cm,
-                                                vp9_reader *r) {
+                                                vpx_reader *r) {
   if (is_compound_reference_allowed(cm)) {
-    return vp9_read_bit(r) ? (vp9_read_bit(r) ? REFERENCE_MODE_SELECT
+    return vpx_read_bit(r) ? (vpx_read_bit(r) ? REFERENCE_MODE_SELECT
                                               : COMPOUND_REFERENCE)
                            : SINGLE_REFERENCE;
   } else {
@@ -127,7 +127,7 @@
   }
 }
 
-static void read_frame_reference_mode_probs(VP9_COMMON *cm, vp9_reader *r) {
+static void read_frame_reference_mode_probs(VP9_COMMON *cm, vpx_reader *r) {
   FRAME_CONTEXT *const fc = cm->fc;
   int i;
 
@@ -146,14 +146,14 @@
       vp9_diff_update_prob(r, &fc->comp_ref_prob[i]);
 }
 
-static void update_mv_probs(vp9_prob *p, int n, vp9_reader *r) {
+static void update_mv_probs(vpx_prob *p, int n, vpx_reader *r) {
   int i;
   for (i = 0; i < n; ++i)
-    if (vp9_read(r, MV_UPDATE_PROB))
-      p[i] = (vp9_read_literal(r, 7) << 1) | 1;
+    if (vpx_read(r, MV_UPDATE_PROB))
+      p[i] = (vpx_read_literal(r, 7) << 1) | 1;
 }
 
-static void read_mv_probs(nmv_context *ctx, int allow_hp, vp9_reader *r) {
+static void read_mv_probs(nmv_context *ctx, int allow_hp, vpx_reader *r) {
   int i, j;
 
   update_mv_probs(ctx->joints, MV_JOINTS - 1, r);
@@ -362,7 +362,7 @@
 }
 
 static void predict_and_reconstruct_intra_block(MACROBLOCKD *const xd,
-                                                vp9_reader *r,
+                                                vpx_reader *r,
                                                 MB_MODE_INFO *const mbmi,
                                                 int plane,
                                                 int row, int col,
@@ -392,7 +392,7 @@
   }
 }
 
-static int reconstruct_inter_block(MACROBLOCKD *const xd, vp9_reader *r,
+static int reconstruct_inter_block(MACROBLOCKD *const xd, vpx_reader *r,
                                    MB_MODE_INFO *const mbmi, int plane,
                                    int row, int col, TX_SIZE tx_size) {
   struct macroblockd_plane *const pd = &xd->plane[plane];
@@ -812,7 +812,7 @@
 
 static void decode_block(VP9Decoder *const pbi, MACROBLOCKD *const xd,
                          int mi_row, int mi_col,
-                         vp9_reader *r, BLOCK_SIZE bsize,
+                         vpx_reader *r, BLOCK_SIZE bsize,
                          int bwl, int bhl) {
   VP9_COMMON *const cm = &pbi->common;
   const int less8x8 = bsize < BLOCK_8X8;
@@ -832,7 +832,7 @@
                          VPX_CODEC_CORRUPT_FRAME, "Invalid block size.");
   }
 
-  vp9_read_mode_info(pbi, xd, mi_row, mi_col, r, x_mis, y_mis);
+  vpx_read_mode_info(pbi, xd, mi_row, mi_col, r, x_mis, y_mis);
 
   if (mbmi->skip) {
     dec_reset_skip_context(xd);
@@ -893,7 +893,7 @@
     }
   }
 
-  xd->corrupted |= vp9_reader_has_error(r);
+  xd->corrupted |= vpx_reader_has_error(r);
 }
 
 static INLINE int dec_partition_plane_context(const MACROBLOCKD *xd,
@@ -923,19 +923,19 @@
 }
 
 static PARTITION_TYPE read_partition(MACROBLOCKD *xd, int mi_row, int mi_col,
-                                     vp9_reader *r,
+                                     vpx_reader *r,
                                      int has_rows, int has_cols, int bsl) {
   const int ctx = dec_partition_plane_context(xd, mi_row, mi_col, bsl);
-  const vp9_prob *const probs = get_partition_probs(xd, ctx);
+  const vpx_prob *const probs = get_partition_probs(xd, ctx);
   FRAME_COUNTS *counts = xd->counts;
   PARTITION_TYPE p;
 
   if (has_rows && has_cols)
-    p = (PARTITION_TYPE)vp9_read_tree(r, vp9_partition_tree, probs);
+    p = (PARTITION_TYPE)vpx_read_tree(r, vp9_partition_tree, probs);
   else if (!has_rows && has_cols)
-    p = vp9_read(r, probs[1]) ? PARTITION_SPLIT : PARTITION_HORZ;
+    p = vpx_read(r, probs[1]) ? PARTITION_SPLIT : PARTITION_HORZ;
   else if (has_rows && !has_cols)
-    p = vp9_read(r, probs[2]) ? PARTITION_SPLIT : PARTITION_VERT;
+    p = vpx_read(r, probs[2]) ? PARTITION_SPLIT : PARTITION_VERT;
   else
     p = PARTITION_SPLIT;
 
@@ -948,7 +948,7 @@
 // TODO(slavarnway): eliminate bsize and subsize in future commits
 static void decode_partition(VP9Decoder *const pbi, MACROBLOCKD *const xd,
                              int mi_row, int mi_col,
-                             vp9_reader* r, BLOCK_SIZE bsize, int n4x4_l2) {
+                             vpx_reader* r, BLOCK_SIZE bsize, int n4x4_l2) {
   VP9_COMMON *const cm = &pbi->common;
   const int n8x8_l2 = n4x4_l2 - 1;
   const int num_8x8_wh = 1 << n8x8_l2;
@@ -1008,7 +1008,7 @@
                                 const uint8_t *data_end,
                                 size_t read_size,
                                 struct vpx_internal_error_info *error_info,
-                                vp9_reader *r,
+                                vpx_reader *r,
                                 vpx_decrypt_cb decrypt_cb,
                                 void *decrypt_state) {
   // Validate the calculated partition length. If the buffer
@@ -1018,16 +1018,16 @@
     vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
                        "Truncated packet or corrupt tile length");
 
-  if (vp9_reader_init(r, data, read_size, decrypt_cb, decrypt_state))
+  if (vpx_reader_init(r, data, read_size, decrypt_cb, decrypt_state))
     vpx_internal_error(error_info, VPX_CODEC_MEM_ERROR,
                        "Failed to allocate bool decoder %d", 1);
 }
 
 static void read_coef_probs_common(vp9_coeff_probs_model *coef_probs,
-                                   vp9_reader *r) {
+                                   vpx_reader *r) {
   int i, j, k, l, m;
 
-  if (vp9_read_bit(r))
+  if (vpx_read_bit(r))
     for (i = 0; i < PLANE_TYPES; ++i)
       for (j = 0; j < REF_TYPES; ++j)
         for (k = 0; k < COEF_BANDS; ++k)
@@ -1037,7 +1037,7 @@
 }
 
 static void read_coef_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode,
-                            vp9_reader *r) {
+                            vpx_reader *r) {
     const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
     TX_SIZE tx_size;
     for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
@@ -1045,7 +1045,7 @@
 }
 
 static void setup_segmentation(struct segmentation *seg,
-                               struct vp9_read_bit_buffer *rb) {
+                               struct vpx_read_bit_buffer *rb) {
   int i, j;
 
   seg->update_map = 0;
@@ -1097,7 +1097,7 @@
 }
 
 static void setup_loopfilter(struct loopfilter *lf,
-                             struct vp9_read_bit_buffer *rb) {
+                             struct vpx_read_bit_buffer *rb) {
   lf->filter_level = vp9_rb_read_literal(rb, 6);
   lf->sharpness_level = vp9_rb_read_literal(rb, 3);
 
@@ -1122,12 +1122,12 @@
   }
 }
 
-static INLINE int read_delta_q(struct vp9_read_bit_buffer *rb) {
+static INLINE int read_delta_q(struct vpx_read_bit_buffer *rb) {
   return vp9_rb_read_bit(rb) ? vp9_rb_read_signed_literal(rb, 4) : 0;
 }
 
 static void setup_quantization(VP9_COMMON *const cm, MACROBLOCKD *const xd,
-                               struct vp9_read_bit_buffer *rb) {
+                               struct vpx_read_bit_buffer *rb) {
   cm->base_qindex = vp9_rb_read_literal(rb, QINDEX_BITS);
   cm->y_dc_delta_q = read_delta_q(rb);
   cm->uv_dc_delta_q = read_delta_q(rb);
@@ -1170,7 +1170,7 @@
   }
 }
 
-static INTERP_FILTER read_interp_filter(struct vp9_read_bit_buffer *rb) {
+static INTERP_FILTER read_interp_filter(struct vpx_read_bit_buffer *rb) {
   const INTERP_FILTER literal_to_filter[] = { EIGHTTAP_SMOOTH,
                                               EIGHTTAP,
                                               EIGHTTAP_SHARP,
@@ -1179,7 +1179,7 @@
                              : literal_to_filter[vp9_rb_read_literal(rb, 2)];
 }
 
-static void setup_display_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+static void setup_display_size(VP9_COMMON *cm, struct vpx_read_bit_buffer *rb) {
   cm->display_width = cm->width;
   cm->display_height = cm->height;
   if (vp9_rb_read_bit(rb))
@@ -1226,7 +1226,7 @@
   }
 }
 
-static void setup_frame_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+static void setup_frame_size(VP9_COMMON *cm, struct vpx_read_bit_buffer *rb) {
   int width, height;
   BufferPool *const pool = cm->buffer_pool;
   vp9_read_frame_size(rb, &width, &height);
@@ -1265,7 +1265,7 @@
 }
 
 static void setup_frame_size_with_refs(VP9_COMMON *cm,
-                                       struct vp9_read_bit_buffer *rb) {
+                                       struct vpx_read_bit_buffer *rb) {
   int width, height;
   int found = 0, i;
   int has_valid_ref_frame = 0;
@@ -1337,7 +1337,7 @@
   pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
 }
 
-static void setup_tile_info(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+static void setup_tile_info(VP9_COMMON *cm, struct vpx_read_bit_buffer *rb) {
   int min_log2_tile_cols, max_log2_tile_cols, max_ones;
   vp9_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
 
@@ -1556,7 +1556,7 @@
 
   if (pbi->frame_parallel_decode)
     vp9_frameworker_broadcast(pbi->cur_buf, INT_MAX);
-  return vp9_reader_find_end(&tile_data->bit_reader);
+  return vpx_reader_find_end(&tile_data->bit_reader);
 }
 
 static int tile_worker_hook(TileWorkerData *const tile_data,
@@ -1735,7 +1735,7 @@
     if (final_worker > -1) {
       TileWorkerData *const tile_data =
           (TileWorkerData*)pbi->tile_workers[final_worker].data1;
-      bit_reader_end = vp9_reader_find_end(&tile_data->bit_reader);
+      bit_reader_end = vpx_reader_find_end(&tile_data->bit_reader);
       final_worker = -1;
     }
 
@@ -1758,7 +1758,7 @@
 }
 
 static void read_bitdepth_colorspace_sampling(
-    VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+    VP9_COMMON *cm, struct vpx_read_bit_buffer *rb) {
   if (cm->profile >= PROFILE_2) {
     cm->bit_depth = vp9_rb_read_bit(rb) ? VPX_BITS_12 : VPX_BITS_10;
 #if CONFIG_VP9_HIGHBITDEPTH
@@ -1801,7 +1801,7 @@
 }
 
 static size_t read_uncompressed_header(VP9Decoder *pbi,
-                                       struct vp9_read_bit_buffer *rb) {
+                                       struct vpx_read_bit_buffer *rb) {
   VP9_COMMON *const cm = &pbi->common;
   BufferPool *const pool = cm->buffer_pool;
   RefCntBuffer *const frame_bufs = pool->frame_bufs;
@@ -2007,10 +2007,10 @@
   VP9_COMMON *const cm = &pbi->common;
   MACROBLOCKD *const xd = &pbi->mb;
   FRAME_CONTEXT *const fc = cm->fc;
-  vp9_reader r;
+  vpx_reader r;
   int k;
 
-  if (vp9_reader_init(&r, data, partition_size, pbi->decrypt_cb,
+  if (vpx_reader_init(&r, data, partition_size, pbi->decrypt_cb,
                       pbi->decrypt_state))
     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
                        "Failed to allocate bool decoder 0");
@@ -2051,7 +2051,7 @@
     read_mv_probs(nmvc, cm->allow_high_precision_mv, &r);
   }
 
-  return vp9_reader_has_error(&r);
+  return vpx_reader_has_error(&r);
 }
 
 #ifdef NDEBUG
@@ -2091,9 +2091,9 @@
 }
 #endif  // NDEBUG
 
-static struct vp9_read_bit_buffer *init_read_bit_buffer(
+static struct vpx_read_bit_buffer *init_read_bit_buffer(
     VP9Decoder *pbi,
-    struct vp9_read_bit_buffer *rb,
+    struct vpx_read_bit_buffer *rb,
     const uint8_t *data,
     const uint8_t *data_end,
     uint8_t clear_data[MAX_VP9_HEADER_SIZE]) {
@@ -2114,19 +2114,19 @@
 
 //------------------------------------------------------------------------------
 
-int vp9_read_sync_code(struct vp9_read_bit_buffer *const rb) {
+int vp9_read_sync_code(struct vpx_read_bit_buffer *const rb) {
   return vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_0 &&
          vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_1 &&
          vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_2;
 }
 
-void vp9_read_frame_size(struct vp9_read_bit_buffer *rb,
+void vp9_read_frame_size(struct vpx_read_bit_buffer *rb,
                          int *width, int *height) {
   *width = vp9_rb_read_literal(rb, 16) + 1;
   *height = vp9_rb_read_literal(rb, 16) + 1;
 }
 
-BITSTREAM_PROFILE vp9_read_profile(struct vp9_read_bit_buffer *rb) {
+BITSTREAM_PROFILE vp9_read_profile(struct vpx_read_bit_buffer *rb) {
   int profile = vp9_rb_read_bit(rb);
   profile |= vp9_rb_read_bit(rb) << 1;
   if (profile > 2)
@@ -2139,7 +2139,7 @@
                       const uint8_t **p_data_end) {
   VP9_COMMON *const cm = &pbi->common;
   MACROBLOCKD *const xd = &pbi->mb;
-  struct vp9_read_bit_buffer rb;
+  struct vpx_read_bit_buffer rb;
   int context_updated = 0;
   uint8_t clear_data[MAX_VP9_HEADER_SIZE];
   const size_t first_partition_size = read_uncompressed_header(pbi,
--- a/vp9/decoder/vp9_decodeframe.h
+++ b/vp9/decoder/vp9_decodeframe.h
@@ -17,12 +17,12 @@
 #endif
 
 struct VP9Decoder;
-struct vp9_read_bit_buffer;
+struct vpx_read_bit_buffer;
 
-int vp9_read_sync_code(struct vp9_read_bit_buffer *const rb);
-void vp9_read_frame_size(struct vp9_read_bit_buffer *rb,
+int vp9_read_sync_code(struct vpx_read_bit_buffer *const rb);
+void vp9_read_frame_size(struct vpx_read_bit_buffer *rb,
                          int *width, int *height);
-BITSTREAM_PROFILE vp9_read_profile(struct vp9_read_bit_buffer *rb);
+BITSTREAM_PROFILE vp9_read_profile(struct vpx_read_bit_buffer *rb);
 
 void vp9_decode_frame(struct VP9Decoder *pbi,
                       const uint8_t *data, const uint8_t *data_end,
--- a/vp9/decoder/vp9_decodemv.c
+++ b/vp9/decoder/vp9_decodemv.c
@@ -22,12 +22,12 @@
 #include "vp9/decoder/vp9_decodemv.h"
 #include "vp9/decoder/vp9_decodeframe.h"
 
-static PREDICTION_MODE read_intra_mode(vp9_reader *r, const vp9_prob *p) {
-  return (PREDICTION_MODE)vp9_read_tree(r, vp9_intra_mode_tree, p);
+static PREDICTION_MODE read_intra_mode(vpx_reader *r, const vpx_prob *p) {
+  return (PREDICTION_MODE)vpx_read_tree(r, vp9_intra_mode_tree, p);
 }
 
 static PREDICTION_MODE read_intra_mode_y(VP9_COMMON *cm, MACROBLOCKD *xd,
-                                         vp9_reader *r, int size_group) {
+                                         vpx_reader *r, int size_group) {
   const PREDICTION_MODE y_mode =
       read_intra_mode(r, cm->fc->y_mode_prob[size_group]);
   FRAME_COUNTS *counts = xd->counts;
@@ -37,7 +37,7 @@
 }
 
 static PREDICTION_MODE read_intra_mode_uv(VP9_COMMON *cm, MACROBLOCKD *xd,
-                                          vp9_reader *r,
+                                          vpx_reader *r,
                                           PREDICTION_MODE y_mode) {
   const PREDICTION_MODE uv_mode = read_intra_mode(r,
                                          cm->fc->uv_mode_prob[y_mode]);
@@ -48,8 +48,8 @@
 }
 
 static PREDICTION_MODE read_inter_mode(VP9_COMMON *cm, MACROBLOCKD *xd,
-                                       vp9_reader *r, int ctx) {
-  const int mode = vp9_read_tree(r, vp9_inter_mode_tree,
+                                       vpx_reader *r, int ctx) {
+  const int mode = vpx_read_tree(r, vp9_inter_mode_tree,
                                  cm->fc->inter_mode_probs[ctx]);
   FRAME_COUNTS *counts = xd->counts;
   if (counts)
@@ -58,20 +58,20 @@
   return NEARESTMV + mode;
 }
 
-static int read_segment_id(vp9_reader *r, const struct segmentation *seg) {
-  return vp9_read_tree(r, vp9_segment_tree, seg->tree_probs);
+static int read_segment_id(vpx_reader *r, const struct segmentation *seg) {
+  return vpx_read_tree(r, vp9_segment_tree, seg->tree_probs);
 }
 
 static TX_SIZE read_selected_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd,
-                                     TX_SIZE max_tx_size, vp9_reader *r) {
+                                     TX_SIZE max_tx_size, vpx_reader *r) {
   FRAME_COUNTS *counts = xd->counts;
   const int ctx = get_tx_size_context(xd);
-  const vp9_prob *tx_probs = get_tx_probs(max_tx_size, ctx, &cm->fc->tx_probs);
-  int tx_size = vp9_read(r, tx_probs[0]);
+  const vpx_prob *tx_probs = get_tx_probs(max_tx_size, ctx, &cm->fc->tx_probs);
+  int tx_size = vpx_read(r, tx_probs[0]);
   if (tx_size != TX_4X4 && max_tx_size >= TX_16X16) {
-    tx_size += vp9_read(r, tx_probs[1]);
+    tx_size += vpx_read(r, tx_probs[1]);
     if (tx_size != TX_8X8 && max_tx_size >= TX_32X32)
-      tx_size += vp9_read(r, tx_probs[2]);
+      tx_size += vpx_read(r, tx_probs[2]);
   }
 
   if (counts)
@@ -80,7 +80,7 @@
 }
 
 static TX_SIZE read_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd,
-                            int allow_select, vp9_reader *r) {
+                            int allow_select, vpx_reader *r) {
   TX_MODE tx_mode = cm->tx_mode;
   BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
   const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
@@ -128,7 +128,7 @@
 
 static int read_intra_segment_id(VP9_COMMON *const cm, int mi_offset,
                                  int x_mis, int y_mis,
-                                 vp9_reader *r) {
+                                 vpx_reader *r) {
   struct segmentation *const seg = &cm->seg;
   int segment_id;
 
@@ -147,7 +147,7 @@
 }
 
 static int read_inter_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
-                                 int mi_row, int mi_col, vp9_reader *r) {
+                                 int mi_row, int mi_col, vpx_reader *r) {
   struct segmentation *const seg = &cm->seg;
   MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
   int predicted_segment_id, segment_id;
@@ -173,8 +173,8 @@
   }
 
   if (seg->temporal_update) {
-    const vp9_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
-    mbmi->seg_id_predicted = vp9_read(r, pred_prob);
+    const vpx_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
+    mbmi->seg_id_predicted = vpx_read(r, pred_prob);
     segment_id = mbmi->seg_id_predicted ? predicted_segment_id
                                         : read_segment_id(r, seg);
   } else {
@@ -185,12 +185,12 @@
 }
 
 static int read_skip(VP9_COMMON *cm, const MACROBLOCKD *xd,
-                     int segment_id, vp9_reader *r) {
+                     int segment_id, vpx_reader *r) {
   if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
     return 1;
   } else {
     const int ctx = vp9_get_skip_context(xd);
-    const int skip = vp9_read(r, cm->fc->skip_probs[ctx]);
+    const int skip = vpx_read(r, cm->fc->skip_probs[ctx]);
     FRAME_COUNTS *counts = xd->counts;
     if (counts)
       ++counts->skip[ctx][skip];
@@ -200,7 +200,7 @@
 
 static void read_intra_frame_mode_info(VP9_COMMON *const cm,
                                        MACROBLOCKD *const xd,
-                                       int mi_row, int mi_col, vp9_reader *r) {
+                                       int mi_row, int mi_col, vpx_reader *r) {
   MODE_INFO *const mi = xd->mi[0];
   MB_MODE_INFO *const mbmi = &mi->mbmi;
   const MODE_INFO *above_mi = xd->above_mi;
@@ -248,16 +248,16 @@
   mbmi->uv_mode = read_intra_mode(r, vp9_kf_uv_mode_prob[mbmi->mode]);
 }
 
-static int read_mv_component(vp9_reader *r,
+static int read_mv_component(vpx_reader *r,
                              const nmv_component *mvcomp, int usehp) {
   int mag, d, fr, hp;
-  const int sign = vp9_read(r, mvcomp->sign);
-  const int mv_class = vp9_read_tree(r, vp9_mv_class_tree, mvcomp->classes);
+  const int sign = vpx_read(r, mvcomp->sign);
+  const int mv_class = vpx_read_tree(r, vp9_mv_class_tree, mvcomp->classes);
   const int class0 = mv_class == MV_CLASS_0;
 
   // Integer part
   if (class0) {
-    d = vp9_read_tree(r, vp9_mv_class0_tree, mvcomp->class0);
+    d = vpx_read_tree(r, vp9_mv_class0_tree, mvcomp->class0);
     mag = 0;
   } else {
     int i;
@@ -265,16 +265,16 @@
 
     d = 0;
     for (i = 0; i < n; ++i)
-      d |= vp9_read(r, mvcomp->bits[i]) << i;
+      d |= vpx_read(r, mvcomp->bits[i]) << i;
     mag = CLASS0_SIZE << (mv_class + 2);
   }
 
   // Fractional part
-  fr = vp9_read_tree(r, vp9_mv_fp_tree, class0 ? mvcomp->class0_fp[d]
+  fr = vpx_read_tree(r, vp9_mv_fp_tree, class0 ? mvcomp->class0_fp[d]
                                                : mvcomp->fp);
 
   // High precision part (if hp is not used, the default value of the hp is 1)
-  hp = usehp ? vp9_read(r, class0 ? mvcomp->class0_hp : mvcomp->hp)
+  hp = usehp ? vpx_read(r, class0 ? mvcomp->class0_hp : mvcomp->hp)
              : 1;
 
   // Result
@@ -282,11 +282,11 @@
   return sign ? -mag : mag;
 }
 
-static INLINE void read_mv(vp9_reader *r, MV *mv, const MV *ref,
+static INLINE void read_mv(vpx_reader *r, MV *mv, const MV *ref,
                            const nmv_context *ctx,
                            nmv_context_counts *counts, int allow_hp) {
   const MV_JOINT_TYPE joint_type =
-      (MV_JOINT_TYPE)vp9_read_tree(r, vp9_mv_joint_tree, ctx->joints);
+      (MV_JOINT_TYPE)vpx_read_tree(r, vp9_mv_joint_tree, ctx->joints);
   const int use_hp = allow_hp && vp9_use_mv_hp(ref);
   MV diff = {0, 0};
 
@@ -304,11 +304,11 @@
 
 static REFERENCE_MODE read_block_reference_mode(VP9_COMMON *cm,
                                                 const MACROBLOCKD *xd,
-                                                vp9_reader *r) {
+                                                vpx_reader *r) {
   if (cm->reference_mode == REFERENCE_MODE_SELECT) {
     const int ctx = vp9_get_reference_mode_context(cm, xd);
     const REFERENCE_MODE mode =
-        (REFERENCE_MODE)vp9_read(r, cm->fc->comp_inter_prob[ctx]);
+        (REFERENCE_MODE)vpx_read(r, cm->fc->comp_inter_prob[ctx]);
     FRAME_COUNTS *counts = xd->counts;
     if (counts)
       ++counts->comp_inter[ctx][mode];
@@ -320,7 +320,7 @@
 
 // Read the referncence frame
 static void read_ref_frames(VP9_COMMON *const cm, MACROBLOCKD *const xd,
-                            vp9_reader *r,
+                            vpx_reader *r,
                             int segment_id, MV_REFERENCE_FRAME ref_frame[2]) {
   FRAME_CONTEXT *const fc = cm->fc;
   FRAME_COUNTS *counts = xd->counts;
@@ -335,7 +335,7 @@
     if (mode == COMPOUND_REFERENCE) {
       const int idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref];
       const int ctx = vp9_get_pred_context_comp_ref_p(cm, xd);
-      const int bit = vp9_read(r, fc->comp_ref_prob[ctx]);
+      const int bit = vpx_read(r, fc->comp_ref_prob[ctx]);
       if (counts)
         ++counts->comp_ref[ctx][bit];
       ref_frame[idx] = cm->comp_fixed_ref;
@@ -342,12 +342,12 @@
       ref_frame[!idx] = cm->comp_var_ref[bit];
     } else if (mode == SINGLE_REFERENCE) {
       const int ctx0 = vp9_get_pred_context_single_ref_p1(xd);
-      const int bit0 = vp9_read(r, fc->single_ref_prob[ctx0][0]);
+      const int bit0 = vpx_read(r, fc->single_ref_prob[ctx0][0]);
       if (counts)
         ++counts->single_ref[ctx0][0][bit0];
       if (bit0) {
         const int ctx1 = vp9_get_pred_context_single_ref_p2(xd);
-        const int bit1 = vp9_read(r, fc->single_ref_prob[ctx1][1]);
+        const int bit1 = vpx_read(r, fc->single_ref_prob[ctx1][1]);
         if (counts)
           ++counts->single_ref[ctx1][1][bit1];
         ref_frame[0] = bit1 ? ALTREF_FRAME : GOLDEN_FRAME;
@@ -365,10 +365,10 @@
 
 static INLINE INTERP_FILTER read_switchable_interp_filter(
     VP9_COMMON *const cm, MACROBLOCKD *const xd,
-    vp9_reader *r) {
+    vpx_reader *r) {
   const int ctx = vp9_get_pred_context_switchable_interp(xd);
   const INTERP_FILTER type =
-      (INTERP_FILTER)vp9_read_tree(r, vp9_switchable_interp_tree,
+      (INTERP_FILTER)vpx_read_tree(r, vp9_switchable_interp_tree,
                                    cm->fc->switchable_interp_prob[ctx]);
   FRAME_COUNTS *counts = xd->counts;
   if (counts)
@@ -378,7 +378,7 @@
 
 static void read_intra_block_mode_info(VP9_COMMON *const cm,
                                        MACROBLOCKD *const xd, MODE_INFO *mi,
-                                       vp9_reader *r) {
+                                       vpx_reader *r) {
   MB_MODE_INFO *const mbmi = &mi->mbmi;
   const BLOCK_SIZE bsize = mi->mbmi.sb_type;
   int i;
@@ -420,7 +420,7 @@
                             PREDICTION_MODE mode,
                             int_mv mv[2], int_mv ref_mv[2],
                             int_mv nearest_mv[2], int_mv near_mv[2],
-                            int is_compound, int allow_hp, vp9_reader *r) {
+                            int is_compound, int allow_hp, vpx_reader *r) {
   int i;
   int ret = 1;
 
@@ -461,12 +461,12 @@
 }
 
 static int read_is_inter_block(VP9_COMMON *const cm, MACROBLOCKD *const xd,
-                               int segment_id, vp9_reader *r) {
+                               int segment_id, vpx_reader *r) {
   if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
     return get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME) != INTRA_FRAME;
   } else {
     const int ctx = vp9_get_intra_inter_context(xd);
-    const int is_inter = vp9_read(r, cm->fc->intra_inter_prob[ctx]);
+    const int is_inter = vpx_read(r, cm->fc->intra_inter_prob[ctx]);
     FRAME_COUNTS *counts = xd->counts;
     if (counts)
       ++counts->intra_inter[ctx][is_inter];
@@ -483,7 +483,7 @@
 static void read_inter_block_mode_info(VP9Decoder *const pbi,
                                        MACROBLOCKD *const xd,
                                        MODE_INFO *const mi,
-                                       int mi_row, int mi_col, vp9_reader *r) {
+                                       int mi_row, int mi_col, vpx_reader *r) {
   VP9_COMMON *const cm = &pbi->common;
   MB_MODE_INFO *const mbmi = &mi->mbmi;
   const BLOCK_SIZE bsize = mbmi->sb_type;
@@ -585,7 +585,7 @@
 
 static void read_inter_frame_mode_info(VP9Decoder *const pbi,
                                        MACROBLOCKD *const xd,
-                                       int mi_row, int mi_col, vp9_reader *r) {
+                                       int mi_row, int mi_col, vpx_reader *r) {
   VP9_COMMON *const cm = &pbi->common;
   MODE_INFO *const mi = xd->mi[0];
   MB_MODE_INFO *const mbmi = &mi->mbmi;
@@ -604,8 +604,8 @@
     read_intra_block_mode_info(cm, xd, mi, r);
 }
 
-void vp9_read_mode_info(VP9Decoder *const pbi, MACROBLOCKD *xd,
-                        int mi_row, int mi_col, vp9_reader *r,
+void vpx_read_mode_info(VP9Decoder *const pbi, MACROBLOCKD *xd,
+                        int mi_row, int mi_col, vpx_reader *r,
                         int x_mis, int y_mis) {
   VP9_COMMON *const cm = &pbi->common;
   MODE_INFO *const mi = xd->mi[0];
--- a/vp9/decoder/vp9_decodemv.h
+++ b/vp9/decoder/vp9_decodemv.h
@@ -19,8 +19,8 @@
 extern "C" {
 #endif
 
-void vp9_read_mode_info(VP9Decoder *const pbi, MACROBLOCKD *xd,
-                        int mi_row, int mi_col, vp9_reader *r,
+void vpx_read_mode_info(VP9Decoder *const pbi, MACROBLOCKD *xd,
+                        int mi_row, int mi_col, vpx_reader *r,
                         int x_mis, int y_mis);
 
 #ifdef __cplusplus
--- a/vp9/decoder/vp9_decoder.h
+++ b/vp9/decoder/vp9_decoder.h
@@ -30,7 +30,7 @@
 // TODO(hkuang): combine this with TileWorkerData.
 typedef struct TileData {
   VP9_COMMON *cm;
-  vp9_reader bit_reader;
+  vpx_reader bit_reader;
   DECLARE_ALIGNED(16, MACROBLOCKD, xd);
   /* dqcoeff are shared by all the planes. So planes must be decoded serially */
   DECLARE_ALIGNED(16, tran_low_t, dqcoeff[32 * 32]);
@@ -38,7 +38,7 @@
 
 typedef struct TileWorkerData {
   struct VP9Decoder *pbi;
-  vp9_reader bit_reader;
+  vpx_reader bit_reader;
   FRAME_COUNTS counts;
   DECLARE_ALIGNED(16, MACROBLOCKD, xd);
   /* dqcoeff are shared by all the planes. So planes must be decoded serially */
--- a/vp9/decoder/vp9_detokenize.c
+++ b/vp9/decoder/vp9_detokenize.c
@@ -38,10 +38,10 @@
        ++coef_counts[band][ctx][token];                     \
   } while (0)
 
-static INLINE int read_coeff(const vp9_prob *probs, int n, vp9_reader *r) {
+static INLINE int read_coeff(const vpx_prob *probs, int n, vpx_reader *r) {
   int i, val = 0;
   for (i = 0; i < n; ++i)
-    val = (val << 1) | vp9_read(r, probs[i]);
+    val = (val << 1) | vpx_read(r, probs[i]);
   return val;
 }
 
@@ -49,15 +49,15 @@
                         PLANE_TYPE type,
                         tran_low_t *dqcoeff, TX_SIZE tx_size, const int16_t *dq,
                         int ctx, const int16_t *scan, const int16_t *nb,
-                        vp9_reader *r) {
+                        vpx_reader *r) {
   FRAME_COUNTS *counts = xd->counts;
   const int max_eob = 16 << (tx_size << 1);
   const FRAME_CONTEXT *const fc = xd->fc;
   const int ref = is_inter_block(&xd->mi[0]->mbmi);
   int band, c = 0;
-  const vp9_prob (*coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
+  const vpx_prob (*coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
       fc->coef_probs[tx_size][type][ref];
-  const vp9_prob *prob;
+  const vpx_prob *prob;
   unsigned int (*coef_counts)[COEFF_CONTEXTS][UNCONSTRAINED_NODES + 1];
   unsigned int (*eob_branch_count)[COEFF_CONTEXTS];
   uint8_t token_cache[32 * 32];
@@ -117,12 +117,12 @@
     prob = coef_probs[band][ctx];
     if (counts)
       ++eob_branch_count[band][ctx];
-    if (!vp9_read(r, prob[EOB_CONTEXT_NODE])) {
+    if (!vpx_read(r, prob[EOB_CONTEXT_NODE])) {
       INCREMENT_COUNT(EOB_MODEL_TOKEN);
       break;
     }
 
-    while (!vp9_read(r, prob[ZERO_CONTEXT_NODE])) {
+    while (!vpx_read(r, prob[ZERO_CONTEXT_NODE])) {
       INCREMENT_COUNT(ZERO_TOKEN);
       dqv = dq[1];
       token_cache[scan[c]] = 0;
@@ -134,13 +134,13 @@
       prob = coef_probs[band][ctx];
     }
 
-    if (!vp9_read(r, prob[ONE_CONTEXT_NODE])) {
+    if (!vpx_read(r, prob[ONE_CONTEXT_NODE])) {
       INCREMENT_COUNT(ONE_TOKEN);
       token = ONE_TOKEN;
       val = 1;
     } else {
       INCREMENT_COUNT(TWO_TOKEN);
-      token = vp9_read_tree(r, vp9_coef_con_tree,
+      token = vpx_read_tree(r, vp9_coef_con_tree,
                             vp9_pareto8_full[prob[PIVOT_NODE] - 1]);
       switch (token) {
         case TWO_TOKEN:
@@ -188,13 +188,13 @@
     v = (val * dqv) >> dq_shift;
 #if CONFIG_COEFFICIENT_RANGE_CHECKING
 #if CONFIG_VP9_HIGHBITDEPTH
-    dqcoeff[scan[c]] = highbd_check_range((vp9_read_bit(r) ? -v : v),
+    dqcoeff[scan[c]] = highbd_check_range((vpx_read_bit(r) ? -v : v),
                                           xd->bd);
 #else
-    dqcoeff[scan[c]] = check_range(vp9_read_bit(r) ? -v : v);
+    dqcoeff[scan[c]] = check_range(vpx_read_bit(r) ? -v : v);
 #endif  // CONFIG_VP9_HIGHBITDEPTH
 #else
-    dqcoeff[scan[c]] = vp9_read_bit(r) ? -v : v;
+    dqcoeff[scan[c]] = vpx_read_bit(r) ? -v : v;
 #endif  // CONFIG_COEFFICIENT_RANGE_CHECKING
     token_cache[scan[c]] = vp9_pt_energy_class[token];
     ++c;
@@ -253,7 +253,7 @@
 int vp9_decode_block_tokens(MACROBLOCKD *xd,
                             int plane, const scan_order *sc,
                             int x, int y,
-                            TX_SIZE tx_size, vp9_reader *r,
+                            TX_SIZE tx_size, vpx_reader *r,
                             int seg_id) {
   struct macroblockd_plane *const pd = &xd->plane[plane];
   const int16_t *const dequant = pd->seg_dequant[seg_id];
--- a/vp9/decoder/vp9_detokenize.h
+++ b/vp9/decoder/vp9_detokenize.h
@@ -23,7 +23,7 @@
 int vp9_decode_block_tokens(MACROBLOCKD *xd,
                             int plane, const scan_order *sc,
                             int x, int y,
-                            TX_SIZE tx_size, vp9_reader *r,
+                            TX_SIZE tx_size, vpx_reader *r,
                             int seg_id);
 
 #ifdef __cplusplus
--- a/vp9/decoder/vp9_dsubexp.c
+++ b/vp9/decoder/vp9_dsubexp.c
@@ -21,11 +21,11 @@
   return (v & 1) ? m - ((v + 1) >> 1) : m + (v >> 1);
 }
 
-static int decode_uniform(vp9_reader *r) {
+static int decode_uniform(vpx_reader *r) {
   const int l = 8;
   const int m = (1 << l) - 191;
-  const int v = vp9_read_literal(r, l - 1);
-  return v < m ?  v : (v << 1) - m + vp9_read_bit(r);
+  const int v = vpx_read_literal(r, l - 1);
+  return v < m ?  v : (v << 1) - m + vpx_read_bit(r);
 }
 
 static int inv_remap_prob(int v, int m) {
@@ -58,19 +58,19 @@
   }
 }
 
-static int decode_term_subexp(vp9_reader *r) {
-  if (!vp9_read_bit(r))
-    return vp9_read_literal(r, 4);
-  if (!vp9_read_bit(r))
-    return vp9_read_literal(r, 4) + 16;
-  if (!vp9_read_bit(r))
-    return vp9_read_literal(r, 5) + 32;
+static int decode_term_subexp(vpx_reader *r) {
+  if (!vpx_read_bit(r))
+    return vpx_read_literal(r, 4);
+  if (!vpx_read_bit(r))
+    return vpx_read_literal(r, 4) + 16;
+  if (!vpx_read_bit(r))
+    return vpx_read_literal(r, 5) + 32;
   return decode_uniform(r) + 64;
 }
 
-void vp9_diff_update_prob(vp9_reader *r, vp9_prob* p) {
-  if (vp9_read(r, DIFF_UPDATE_PROB)) {
+void vp9_diff_update_prob(vpx_reader *r, vpx_prob* p) {
+  if (vpx_read(r, DIFF_UPDATE_PROB)) {
     const int delp = decode_term_subexp(r);
-    *p = (vp9_prob)inv_remap_prob(delp, *p);
+    *p = (vpx_prob)inv_remap_prob(delp, *p);
   }
 }
--- a/vp9/decoder/vp9_dsubexp.h
+++ b/vp9/decoder/vp9_dsubexp.h
@@ -18,7 +18,7 @@
 extern "C" {
 #endif
 
-void vp9_diff_update_prob(vp9_reader *r, vp9_prob* p);
+void vp9_diff_update_prob(vpx_reader *r, vpx_prob* p);
 
 #ifdef __cplusplus
 }  // extern "C"
--- a/vp9/encoder/vp9_bitstream.c
+++ b/vp9/encoder/vp9_bitstream.c
@@ -45,12 +45,12 @@
   {{2, 2}, {6, 3}, {0, 1}, {7, 3}};
 
 static void write_intra_mode(vp9_writer *w, PREDICTION_MODE mode,
-                             const vp9_prob *probs) {
+                             const vpx_prob *probs) {
   vp9_write_token(w, vp9_intra_mode_tree, probs, &intra_mode_encodings[mode]);
 }
 
 static void write_inter_mode(vp9_writer *w, PREDICTION_MODE mode,
-                             const vp9_prob *probs) {
+                             const vpx_prob *probs) {
   assert(is_inter_mode(mode));
   vp9_write_token(w, vp9_inter_mode_tree, probs,
                   &inter_mode_encodings[INTER_OFFSET(mode)]);
@@ -62,7 +62,7 @@
 }
 
 static void prob_diff_update(const vp9_tree_index *tree,
-                             vp9_prob probs[/*n - 1*/],
+                             vpx_prob probs[/*n - 1*/],
                              const unsigned int counts[/*n - 1*/],
                              int n, vp9_writer *w) {
   int i;
@@ -81,7 +81,7 @@
   TX_SIZE tx_size = xd->mi[0]->mbmi.tx_size;
   BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
   const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
-  const vp9_prob *const tx_probs = get_tx_probs2(max_tx_size, xd,
+  const vpx_prob *const tx_probs = get_tx_probs2(max_tx_size, xd,
                                                  &cm->fc->tx_probs);
   vp9_write(w, tx_size != TX_4X4, tx_probs[0]);
   if (tx_size != TX_4X4 && max_tx_size >= TX_16X16) {
@@ -254,7 +254,7 @@
   if (seg->update_map) {
     if (seg->temporal_update) {
       const int pred_flag = mbmi->seg_id_predicted;
-      vp9_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
+      vpx_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
       vp9_write(w, pred_flag, pred_prob);
       if (!pred_flag)
         write_segment_id(w, seg, segment_id);
@@ -290,7 +290,7 @@
     write_intra_mode(w, mbmi->uv_mode, cm->fc->uv_mode_prob[mode]);
   } else {
     const int mode_ctx = mbmi_ext->mode_context[mbmi->ref_frame[0]];
-    const vp9_prob *const inter_probs = cm->fc->inter_mode_probs[mode_ctx];
+    const vpx_prob *const inter_probs = cm->fc->inter_mode_probs[mode_ctx];
     write_ref_frames(cm, xd, w);
 
     // If segment skip is not enabled code the mode.
@@ -407,7 +407,7 @@
                             int hbs, int mi_row, int mi_col,
                             PARTITION_TYPE p, BLOCK_SIZE bsize, vp9_writer *w) {
   const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
-  const vp9_prob *const probs = xd->partition_probs[ctx];
+  const vpx_prob *const probs = xd->partition_probs[ctx];
   const int has_rows = (mi_row + hbs) < cm->mi_rows;
   const int has_cols = (mi_col + hbs) < cm->mi_cols;
 
@@ -533,7 +533,7 @@
                                      vp9_coeff_stats *frame_branch_ct,
                                      vp9_coeff_probs_model *new_coef_probs) {
   vp9_coeff_probs_model *old_coef_probs = cpi->common.fc->coef_probs[tx_size];
-  const vp9_prob upd = DIFF_UPDATE_PROB;
+  const vpx_prob upd = DIFF_UPDATE_PROB;
   const int entropy_nodes_update = UNCONSTRAINED_NODES;
   int i, j, k, l, t;
   int stepsize = cpi->sf.coeff_prob_appx_step;
@@ -548,8 +548,8 @@
           for (k = 0; k < COEF_BANDS; ++k) {
             for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
               for (t = 0; t < entropy_nodes_update; ++t) {
-                vp9_prob newp = new_coef_probs[i][j][k][l][t];
-                const vp9_prob oldp = old_coef_probs[i][j][k][l][t];
+                vpx_prob newp = new_coef_probs[i][j][k][l][t];
+                const vpx_prob oldp = old_coef_probs[i][j][k][l][t];
                 int s;
                 int u = 0;
                 if (t == PIVOT_NODE)
@@ -585,9 +585,9 @@
             for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
               // calc probs and branch cts for this frame only
               for (t = 0; t < entropy_nodes_update; ++t) {
-                vp9_prob newp = new_coef_probs[i][j][k][l][t];
-                vp9_prob *oldp = old_coef_probs[i][j][k][l] + t;
-                const vp9_prob upd = DIFF_UPDATE_PROB;
+                vpx_prob newp = new_coef_probs[i][j][k][l][t];
+                vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
+                const vpx_prob upd = DIFF_UPDATE_PROB;
                 int s;
                 int u = 0;
                 if (t == PIVOT_NODE)
@@ -623,8 +623,8 @@
             for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
               // calc probs and branch cts for this frame only
               for (t = 0; t < entropy_nodes_update; ++t) {
-                vp9_prob newp = new_coef_probs[i][j][k][l][t];
-                vp9_prob *oldp = old_coef_probs[i][j][k][l] + t;
+                vpx_prob newp = new_coef_probs[i][j][k][l][t];
+                vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
                 int s;
                 int u = 0;
 
--- a/vp9/encoder/vp9_cost.c
+++ b/vp9/encoder/vp9_cost.c
@@ -35,9 +35,9 @@
   22,   21,   19,   18,   16,   15,   13,   12,   10,   9,    7,    6,
   4,    3,    1,    1};
 
-static void cost(int *costs, vp9_tree tree, const vp9_prob *probs,
+static void cost(int *costs, vp9_tree tree, const vpx_prob *probs,
                  int i, int c) {
-  const vp9_prob prob = probs[i / 2];
+  const vpx_prob prob = probs[i / 2];
   int b;
 
   for (b = 0; b <= 1; ++b) {
@@ -51,11 +51,11 @@
   }
 }
 
-void vp9_cost_tokens(int *costs, const vp9_prob *probs, vp9_tree tree) {
+void vp9_cost_tokens(int *costs, const vpx_prob *probs, vp9_tree tree) {
   cost(costs, tree, probs, 0, 0);
 }
 
-void vp9_cost_tokens_skip(int *costs, const vp9_prob *probs, vp9_tree tree) {
+void vp9_cost_tokens_skip(int *costs, const vpx_prob *probs, vp9_tree tree) {
   assert(tree[0] <= 0 && tree[1] > 0);
 
   costs[-tree[0]] = vp9_cost_bit(probs[0], 0);
--- a/vp9/encoder/vp9_cost.h
+++ b/vp9/encoder/vp9_cost.h
@@ -27,11 +27,11 @@
                                                     : (prob))
 
 static INLINE unsigned int cost_branch256(const unsigned int ct[2],
-                                          vp9_prob p) {
+                                          vpx_prob p) {
   return ct[0] * vp9_cost_zero(p) + ct[1] * vp9_cost_one(p);
 }
 
-static INLINE int treed_cost(vp9_tree tree, const vp9_prob *probs,
+static INLINE int treed_cost(vp9_tree tree, const vpx_prob *probs,
                              int bits, int len) {
   int cost = 0;
   vp9_tree_index i = 0;
@@ -45,8 +45,8 @@
   return cost;
 }
 
-void vp9_cost_tokens(int *costs, const vp9_prob *probs, vp9_tree tree);
-void vp9_cost_tokens_skip(int *costs, const vp9_prob *probs, vp9_tree tree);
+void vp9_cost_tokens(int *costs, const vpx_prob *probs, vp9_tree tree);
+void vp9_cost_tokens_skip(int *costs, const vpx_prob *probs, vp9_tree tree);
 
 #ifdef __cplusplus
 }  // extern "C"
--- a/vp9/encoder/vp9_encodemv.c
+++ b/vp9/encoder/vp9_encodemv.c
@@ -133,9 +133,9 @@
   }
 }
 
-static int update_mv(vp9_writer *w, const unsigned int ct[2], vp9_prob *cur_p,
-                     vp9_prob upd_p) {
-  const vp9_prob new_p = get_binary_prob(ct[0], ct[1]) | 1;
+static int update_mv(vp9_writer *w, const unsigned int ct[2], vpx_prob *cur_p,
+                     vpx_prob upd_p) {
+  const vpx_prob new_p = get_binary_prob(ct[0], ct[1]) | 1;
   const int update = cost_branch256(ct, *cur_p) + vp9_cost_zero(upd_p) >
                      cost_branch256(ct, new_p) + vp9_cost_one(upd_p) + 7 * 256;
   vp9_write(w, update, upd_p);
@@ -147,7 +147,7 @@
 }
 
 static void write_mv_update(const vp9_tree_index *tree,
-                            vp9_prob probs[/*n - 1*/],
+                            vpx_prob probs[/*n - 1*/],
                             const unsigned int counts[/*n - 1*/],
                             int n, vp9_writer *w) {
   int i;
--- a/vp9/encoder/vp9_encoder.h
+++ b/vp9/encoder/vp9_encoder.h
@@ -55,7 +55,7 @@
   int nmvcosts[2][MV_VALS];
   int nmvcosts_hp[2][MV_VALS];
 
-  vp9_prob segment_pred_probs[PREDICTION_PROBS];
+  vpx_prob segment_pred_probs[PREDICTION_PROBS];
 
   unsigned char *last_frame_seg_map_copy;
 
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -1019,9 +1019,9 @@
 static void init_ref_frame_cost(VP9_COMMON *const cm,
                                 MACROBLOCKD *const xd,
                                 int ref_frame_cost[MAX_REF_FRAMES]) {
-  vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
-  vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
-  vp9_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
+  vpx_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
+  vpx_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
+  vpx_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
 
   ref_frame_cost[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
   ref_frame_cost[LAST_FRAME] = ref_frame_cost[GOLDEN_FRAME] =
--- a/vp9/encoder/vp9_rd.c
+++ b/vp9/encoder/vp9_rd.c
@@ -93,7 +93,7 @@
       for (j = 0; j < REF_TYPES; ++j)
         for (k = 0; k < COEF_BANDS; ++k)
           for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
-            vp9_prob probs[ENTROPY_NODES];
+            vpx_prob probs[ENTROPY_NODES];
             vp9_model_to_full_probs(p[t][i][j][k][l], probs);
             vp9_cost_tokens((int *)c[t][i][j][k][0][l], probs,
                             vp9_coef_tree);
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -641,7 +641,7 @@
   VP9_COMMON *const cm = &cpi->common;
   MACROBLOCKD *const xd = &x->e_mbd;
   MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
-  vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
+  vpx_prob skip_prob = vp9_get_skip_prob(cm, xd);
   int r[TX_SIZES][2], s[TX_SIZES];
   int64_t d[TX_SIZES], sse[TX_SIZES];
   int64_t rd[TX_SIZES][2] = {{INT64_MAX, INT64_MAX},
@@ -654,7 +654,7 @@
   int64_t best_rd = INT64_MAX;
   TX_SIZE best_tx = max_tx_size;
 
-  const vp9_prob *tx_probs = get_tx_probs2(max_tx_size, xd, &cm->fc->tx_probs);
+  const vpx_prob *tx_probs = get_tx_probs2(max_tx_size, xd, &cm->fc->tx_probs);
   assert(skip_prob > 0);
   s0 = vp9_cost_bit(skip_prob, 0);
   s1 = vp9_cost_bit(skip_prob, 1);
@@ -2118,7 +2118,7 @@
                                      int segment_id,
                                      unsigned int *ref_costs_single,
                                      unsigned int *ref_costs_comp,
-                                     vp9_prob *comp_mode_p) {
+                                     vpx_prob *comp_mode_p) {
   int seg_ref_active = segfeature_active(&cm->seg, segment_id,
                                          SEG_LVL_REF_FRAME);
   if (seg_ref_active) {
@@ -2126,8 +2126,8 @@
     memset(ref_costs_comp,   0, MAX_REF_FRAMES * sizeof(*ref_costs_comp));
     *comp_mode_p = 128;
   } else {
-    vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
-    vp9_prob comp_inter_p = 128;
+    vpx_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
+    vpx_prob comp_inter_p = 128;
 
     if (cm->reference_mode == REFERENCE_MODE_SELECT) {
       comp_inter_p = vp9_get_reference_mode_prob(cm, xd);
@@ -2139,8 +2139,8 @@
     ref_costs_single[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
 
     if (cm->reference_mode != COMPOUND_REFERENCE) {
-      vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
-      vp9_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
+      vpx_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
+      vpx_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
       unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
 
       if (cm->reference_mode == REFERENCE_MODE_SELECT)
@@ -2159,7 +2159,7 @@
       ref_costs_single[ALTREF_FRAME] = 512;
     }
     if (cm->reference_mode != SINGLE_REFERENCE) {
-      vp9_prob ref_comp_p = vp9_get_pred_prob_comp_ref_p(cm, xd);
+      vpx_prob ref_comp_p = vp9_get_pred_prob_comp_ref_p(cm, xd);
       unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
 
       if (cm->reference_mode == REFERENCE_MODE_SELECT)
@@ -3003,7 +3003,7 @@
   int best_mode_skippable = 0;
   int midx, best_mode_index = -1;
   unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
-  vp9_prob comp_mode_p;
+  vpx_prob comp_mode_p;
   int64_t best_intra_rd = INT64_MAX;
   unsigned int best_pred_sse = UINT_MAX;
   PREDICTION_MODE best_intra_mode = DC_PRED;
@@ -3696,7 +3696,7 @@
   int64_t best_pred_diff[REFERENCE_MODES];
   int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
   unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
-  vp9_prob comp_mode_p;
+  vpx_prob comp_mode_p;
   INTERP_FILTER best_filter = SWITCHABLE;
   int64_t this_rd = INT64_MAX;
   int rate2 = 0;
@@ -3812,7 +3812,7 @@
   MB_MODE_INFO best_mbmode;
   int ref_index, best_ref_index = 0;
   unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
-  vp9_prob comp_mode_p;
+  vpx_prob comp_mode_p;
   INTERP_FILTER tmp_best_filter = SWITCHABLE;
   int rate_uv_intra, rate_uv_tokenonly;
   int64_t dist_uv;
--- a/vp9/encoder/vp9_segmentation.c
+++ b/vp9/encoder/vp9_segmentation.c
@@ -49,7 +49,7 @@
 }
 
 // Based on set of segment counts calculate a probability tree
-static void calc_segtree_probs(int *segcounts, vp9_prob *segment_tree_probs) {
+static void calc_segtree_probs(int *segcounts, vpx_prob *segment_tree_probs) {
   // Work out probabilities of each segment
   const int c01 = segcounts[0] + segcounts[1];
   const int c23 = segcounts[2] + segcounts[3];
@@ -66,7 +66,7 @@
 }
 
 // Based on set of segment counts and probabilities calculate a cost estimate
-static int cost_segmap(int *segcounts, vp9_prob *probs) {
+static int cost_segmap(int *segcounts, vpx_prob *probs) {
   const int c01 = segcounts[0] + segcounts[1];
   const int c23 = segcounts[2] + segcounts[3];
   const int c45 = segcounts[4] + segcounts[5];
@@ -207,9 +207,9 @@
   int no_pred_segcounts[MAX_SEGMENTS] = { 0 };
   int t_unpred_seg_counts[MAX_SEGMENTS] = { 0 };
 
-  vp9_prob no_pred_tree[SEG_TREE_PROBS];
-  vp9_prob t_pred_tree[SEG_TREE_PROBS];
-  vp9_prob t_nopred_prob[PREDICTION_PROBS];
+  vpx_prob no_pred_tree[SEG_TREE_PROBS];
+  vpx_prob t_pred_tree[SEG_TREE_PROBS];
+  vpx_prob t_nopred_prob[PREDICTION_PROBS];
 
   // Set default state for the segment tree probabilities and the
   // temporal coding probabilities
--- a/vp9/encoder/vp9_subexp.c
+++ b/vp9/encoder/vp9_subexp.c
@@ -78,7 +78,7 @@
   return i;
 }
 
-static int prob_diff_update_cost(vp9_prob newp, vp9_prob oldp) {
+static int prob_diff_update_cost(vpx_prob newp, vpx_prob oldp) {
   int delp = remap_prob(newp, oldp);
   return update_bits[delp] * 256;
 }
@@ -111,17 +111,17 @@
   }
 }
 
-void vp9_write_prob_diff_update(vp9_writer *w, vp9_prob newp, vp9_prob oldp) {
+void vp9_write_prob_diff_update(vp9_writer *w, vpx_prob newp, vpx_prob oldp) {
   const int delp = remap_prob(newp, oldp);
   encode_term_subexp(w, delp);
 }
 
 int vp9_prob_diff_update_savings_search(const unsigned int *ct,
-                                        vp9_prob oldp, vp9_prob *bestp,
-                                        vp9_prob upd) {
+                                        vpx_prob oldp, vpx_prob *bestp,
+                                        vpx_prob upd) {
   const int old_b = cost_branch256(ct, oldp);
   int bestsavings = 0;
-  vp9_prob newp, bestnewp = oldp;
+  vpx_prob newp, bestnewp = oldp;
   const int step = *bestp > oldp ? -1 : 1;
 
   for (newp = *bestp; newp != oldp; newp += step) {
@@ -138,15 +138,15 @@
 }
 
 int vp9_prob_diff_update_savings_search_model(const unsigned int *ct,
-                                              const vp9_prob *oldp,
-                                              vp9_prob *bestp,
-                                              vp9_prob upd,
+                                              const vpx_prob *oldp,
+                                              vpx_prob *bestp,
+                                              vpx_prob upd,
                                               int stepsize) {
   int i, old_b, new_b, update_b, savings, bestsavings, step;
   int newp;
-  vp9_prob bestnewp, newplist[ENTROPY_NODES], oldplist[ENTROPY_NODES];
+  vpx_prob bestnewp, newplist[ENTROPY_NODES], oldplist[ENTROPY_NODES];
   vp9_model_to_full_probs(oldp, oldplist);
-  memcpy(newplist, oldp, sizeof(vp9_prob) * UNCONSTRAINED_NODES);
+  memcpy(newplist, oldp, sizeof(vpx_prob) * UNCONSTRAINED_NODES);
   for (i = UNCONSTRAINED_NODES, old_b = 0; i < ENTROPY_NODES; ++i)
     old_b += cost_branch256(ct + 2 * i, oldplist[i]);
   old_b += cost_branch256(ct + 2 * PIVOT_NODE, oldplist[PIVOT_NODE]);
@@ -196,10 +196,10 @@
   return bestsavings;
 }
 
-void vp9_cond_prob_diff_update(vp9_writer *w, vp9_prob *oldp,
+void vp9_cond_prob_diff_update(vp9_writer *w, vpx_prob *oldp,
                                const unsigned int ct[2]) {
-  const vp9_prob upd = DIFF_UPDATE_PROB;
-  vp9_prob newp = get_binary_prob(ct[0], ct[1]);
+  const vpx_prob upd = DIFF_UPDATE_PROB;
+  vpx_prob newp = get_binary_prob(ct[0], ct[1]);
   const int savings = vp9_prob_diff_update_savings_search(ct, *oldp, &newp,
                                                           upd);
   assert(newp >= 1);
--- a/vp9/encoder/vp9_subexp.h
+++ b/vp9/encoder/vp9_subexp.h
@@ -21,20 +21,20 @@
 struct vp9_writer;
 
 void vp9_write_prob_diff_update(struct vp9_writer *w,
-                                vp9_prob newp, vp9_prob oldp);
+                                vpx_prob newp, vpx_prob oldp);
 
-void vp9_cond_prob_diff_update(struct vp9_writer *w, vp9_prob *oldp,
+void vp9_cond_prob_diff_update(struct vp9_writer *w, vpx_prob *oldp,
                                const unsigned int ct[2]);
 
 int vp9_prob_diff_update_savings_search(const unsigned int *ct,
-                                        vp9_prob oldp, vp9_prob *bestp,
-                                        vp9_prob upd);
+                                        vpx_prob oldp, vpx_prob *bestp,
+                                        vpx_prob upd);
 
 
 int vp9_prob_diff_update_savings_search_model(const unsigned int *ct,
-                                              const vp9_prob *oldp,
-                                              vp9_prob *bestp,
-                                              vp9_prob upd,
+                                              const vpx_prob *oldp,
+                                              vpx_prob *bestp,
+                                              vpx_prob upd,
                                               int stepsize);
 
 #ifdef __cplusplus
--- a/vp9/encoder/vp9_tokenize.c
+++ b/vp9/encoder/vp9_tokenize.c
@@ -457,7 +457,7 @@
                    aoff, loff);
 }
 
-static INLINE void add_token(TOKENEXTRA **t, const vp9_prob *context_tree,
+static INLINE void add_token(TOKENEXTRA **t, const vpx_prob *context_tree,
                              int32_t extra, uint8_t token,
                              uint8_t skip_eob_node,
                              unsigned int *counts) {
@@ -470,7 +470,7 @@
 }
 
 static INLINE void add_token_no_extra(TOKENEXTRA **t,
-                                      const vp9_prob *context_tree,
+                                      const vpx_prob *context_tree,
                                       uint8_t token,
                                       uint8_t skip_eob_node,
                                       unsigned int *counts) {
@@ -511,7 +511,7 @@
   const int ref = is_inter_block(mbmi);
   unsigned int (*const counts)[COEFF_CONTEXTS][ENTROPY_TOKENS] =
       td->rd_counts.coef_counts[tx_size][type][ref];
-  vp9_prob (*const coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
+  vpx_prob (*const coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
       cpi->common.fc->coef_probs[tx_size][type][ref];
   unsigned int (*const eob_branch)[COEFF_CONTEXTS] =
       td->counts->eob_branch[tx_size][type][ref];
--- a/vp9/encoder/vp9_tokenize.h
+++ b/vp9/encoder/vp9_tokenize.h
@@ -35,7 +35,7 @@
 } TOKENVALUE;
 
 typedef struct {
-  const vp9_prob *context_tree;
+  const vpx_prob *context_tree;
   EXTRABIT extra;
   uint8_t token;
   uint8_t skip_eob_node;
--- a/vp9/encoder/vp9_treewriter.h
+++ b/vp9/encoder/vp9_treewriter.h
@@ -29,7 +29,7 @@
 void vp9_tokens_from_tree(struct vp9_token*, const vp9_tree_index *);
 
 static INLINE void vp9_write_tree(vp9_writer *w, const vp9_tree_index *tree,
-                                  const vp9_prob *probs, int bits, int len,
+                                  const vpx_prob *probs, int bits, int len,
                                   vp9_tree_index i) {
   do {
     const int bit = (bits >> --len) & 1;
@@ -39,7 +39,7 @@
 }
 
 static INLINE void vp9_write_token(vp9_writer *w, const vp9_tree_index *tree,
-                                   const vp9_prob *probs,
+                                   const vpx_prob *probs,
                                    const struct vp9_token *token) {
   vp9_write_tree(w, tree, probs, token->value, token->len, 0);
 }
--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -145,7 +145,7 @@
 }
 
 static int parse_bitdepth_colorspace_sampling(
-    BITSTREAM_PROFILE profile, struct vp9_read_bit_buffer *rb) {
+    BITSTREAM_PROFILE profile, struct vpx_read_bit_buffer *rb) {
   vpx_color_space_t color_space;
   if (profile >= PROFILE_2)
     rb->bit_offset += 1;  // Bit-depth 10 or 12.
@@ -191,7 +191,7 @@
   {
     int show_frame;
     int error_resilient;
-    struct vp9_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL };
+    struct vpx_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL };
     const int frame_marker = vp9_rb_read_literal(&rb, 2);
     const BITSTREAM_PROFILE profile = vp9_read_profile(&rb);
 
--- a/vpx_dsp/bitreader.c
+++ b/vpx_dsp/bitreader.c
@@ -13,7 +13,7 @@
 #include "vpx_ports/mem.h"
 #include "vpx_mem/vpx_mem.h"
 
-int vp9_reader_init(vp9_reader *r,
+int vpx_reader_init(vpx_reader *r,
                     const uint8_t *buffer,
                     size_t size,
                     vpx_decrypt_cb decrypt_cb,
@@ -28,12 +28,12 @@
     r->range = 255;
     r->decrypt_cb = decrypt_cb;
     r->decrypt_state = decrypt_state;
-    vp9_reader_fill(r);
-    return vp9_read_bit(r) != 0;  // marker bit
+    vpx_reader_fill(r);
+    return vpx_read_bit(r) != 0;  // marker bit
   }
 }
 
-void vp9_reader_fill(vp9_reader *r) {
+void vpx_reader_fill(vpx_reader *r) {
   const uint8_t *const buffer_end = r->buffer_end;
   const uint8_t *buffer = r->buffer;
   const uint8_t *buffer_start = buffer;
@@ -73,7 +73,7 @@
   r->count = count;
 }
 
-const uint8_t *vp9_reader_find_end(vp9_reader *r) {
+const uint8_t *vpx_reader_find_end(vpx_reader *r) {
   // Find the end of the coded buffer
   while (r->count > CHAR_BIT && r->count < BD_VALUE_SIZE) {
     r->count -= CHAR_BIT;
--- a/vpx_dsp/bitreader.h
+++ b/vpx_dsp/bitreader.h
@@ -43,19 +43,19 @@
   vpx_decrypt_cb decrypt_cb;
   void *decrypt_state;
   uint8_t clear_buffer[sizeof(BD_VALUE) + 1];
-} vp9_reader;
+} vpx_reader;
 
-int vp9_reader_init(vp9_reader *r,
+int vpx_reader_init(vpx_reader *r,
                     const uint8_t *buffer,
                     size_t size,
                     vpx_decrypt_cb decrypt_cb,
                     void *decrypt_state);
 
-void vp9_reader_fill(vp9_reader *r);
+void vpx_reader_fill(vpx_reader *r);
 
-const uint8_t *vp9_reader_find_end(vp9_reader *r);
+const uint8_t *vpx_reader_find_end(vpx_reader *r);
 
-static INLINE int vp9_reader_has_error(vp9_reader *r) {
+static INLINE int vpx_reader_has_error(vpx_reader *r) {
   // Check if we have reached the end of the buffer.
   //
   // Variable 'count' stores the number of bits in the 'value' buffer, minus
@@ -73,7 +73,7 @@
   return r->count > BD_VALUE_SIZE && r->count < LOTS_OF_BITS;
 }
 
-static INLINE int vp9_read(vp9_reader *r, int prob) {
+static INLINE int vpx_read(vpx_reader *r, int prob) {
   unsigned int bit = 0;
   BD_VALUE value;
   BD_VALUE bigsplit;
@@ -82,7 +82,7 @@
   unsigned int split = (r->range * prob + (256 - prob)) >> CHAR_BIT;
 
   if (r->count < 0)
-    vp9_reader_fill(r);
+    vpx_reader_fill(r);
 
   value = r->value;
   count = r->count;
@@ -110,24 +110,24 @@
   return bit;
 }
 
-static INLINE int vp9_read_bit(vp9_reader *r) {
-  return vp9_read(r, 128);  // vp9_prob_half
+static INLINE int vpx_read_bit(vpx_reader *r) {
+  return vpx_read(r, 128);  // vpx_prob_half
 }
 
-static INLINE int vp9_read_literal(vp9_reader *r, int bits) {
+static INLINE int vpx_read_literal(vpx_reader *r, int bits) {
   int literal = 0, bit;
 
   for (bit = bits - 1; bit >= 0; bit--)
-    literal |= vp9_read_bit(r) << bit;
+    literal |= vpx_read_bit(r) << bit;
 
   return literal;
 }
 
-static INLINE int vp9_read_tree(vp9_reader *r, const vp9_tree_index *tree,
-                                const vp9_prob *probs) {
+static INLINE int vpx_read_tree(vpx_reader *r, const vp9_tree_index *tree,
+                                const vpx_prob *probs) {
   vp9_tree_index i = 0;
 
-  while ((i = tree[i + vp9_read(r, probs[i >> 1])]) > 0)
+  while ((i = tree[i + vpx_read(r, probs[i >> 1])]) > 0)
     continue;
 
   return -i;
--- a/vpx_dsp/bitreader_buffer.c
+++ b/vpx_dsp/bitreader_buffer.c
@@ -9,11 +9,11 @@
  */
 #include "./bitreader_buffer.h"
 
-size_t vp9_rb_bytes_read(struct vp9_read_bit_buffer *rb) {
+size_t vp9_rb_bytes_read(struct vpx_read_bit_buffer *rb) {
   return (rb->bit_offset + 7) >> 3;
 }
 
-int vp9_rb_read_bit(struct vp9_read_bit_buffer *rb) {
+int vp9_rb_read_bit(struct vpx_read_bit_buffer *rb) {
   const size_t off = rb->bit_offset;
   const size_t p = off >> 3;
   const int q = 7 - (int)(off & 0x7);
@@ -27,7 +27,7 @@
   }
 }
 
-int vp9_rb_read_literal(struct vp9_read_bit_buffer *rb, int bits) {
+int vp9_rb_read_literal(struct vpx_read_bit_buffer *rb, int bits) {
   int value = 0, bit;
   for (bit = bits - 1; bit >= 0; bit--)
     value |= vp9_rb_read_bit(rb) << bit;
@@ -34,7 +34,7 @@
   return value;
 }
 
-int vp9_rb_read_signed_literal(struct vp9_read_bit_buffer *rb,
+int vp9_rb_read_signed_literal(struct vpx_read_bit_buffer *rb,
                                int bits) {
   const int value = vp9_rb_read_literal(rb, bits);
   return vp9_rb_read_bit(rb) ? -value : value;
--- a/vpx_dsp/bitreader_buffer.h
+++ b/vpx_dsp/bitreader_buffer.h
@@ -21,7 +21,7 @@
 
 typedef void (*vp9_rb_error_handler)(void *data);
 
-struct vp9_read_bit_buffer {
+struct vpx_read_bit_buffer {
   const uint8_t *bit_buffer;
   const uint8_t *bit_buffer_end;
   size_t bit_offset;
@@ -30,13 +30,13 @@
   vp9_rb_error_handler error_handler;
 };
 
-size_t vp9_rb_bytes_read(struct vp9_read_bit_buffer *rb);
+size_t vp9_rb_bytes_read(struct vpx_read_bit_buffer *rb);
 
-int vp9_rb_read_bit(struct vp9_read_bit_buffer *rb);
+int vp9_rb_read_bit(struct vpx_read_bit_buffer *rb);
 
-int vp9_rb_read_literal(struct vp9_read_bit_buffer *rb, int bits);
+int vp9_rb_read_literal(struct vpx_read_bit_buffer *rb, int bits);
 
-int vp9_rb_read_signed_literal(struct vp9_read_bit_buffer *rb, int bits);
+int vp9_rb_read_signed_literal(struct vpx_read_bit_buffer *rb, int bits);
 
 #ifdef __cplusplus
 }  // extern "C"
--- a/vpx_dsp/bitwriter.h
+++ b/vpx_dsp/bitwriter.h
@@ -79,7 +79,7 @@
 }
 
 static INLINE void vp9_write_bit(vp9_writer *w, int bit) {
-  vp9_write(w, bit, 128);  // vp9_prob_half
+  vp9_write(w, bit, 128);  // vpx_prob_half
 }
 
 static INLINE void vp9_write_literal(vp9_writer *w, int data, int bits) {
--- a/vpx_dsp/prob.c
+++ b/vpx_dsp/prob.c
@@ -31,9 +31,9 @@
 
 static unsigned int tree_merge_probs_impl(unsigned int i,
                                           const vp9_tree_index *tree,
-                                          const vp9_prob *pre_probs,
+                                          const vpx_prob *pre_probs,
                                           const unsigned int *counts,
-                                          vp9_prob *probs) {
+                                          vpx_prob *probs) {
   const int l = tree[i];
   const unsigned int left_count = (l <= 0)
                  ? counts[-l]
@@ -47,7 +47,7 @@
   return left_count + right_count;
 }
 
-void vp9_tree_merge_probs(const vp9_tree_index *tree, const vp9_prob *pre_probs,
-                          const unsigned int *counts, vp9_prob *probs) {
+void vp9_tree_merge_probs(const vp9_tree_index *tree, const vpx_prob *pre_probs,
+                          const unsigned int *counts, vpx_prob *probs) {
   tree_merge_probs_impl(0, tree, pre_probs, counts, probs);
 }
--- a/vpx_dsp/prob.h
+++ b/vpx_dsp/prob.h
@@ -20,11 +20,11 @@
 extern "C" {
 #endif
 
-typedef uint8_t vp9_prob;
+typedef uint8_t vpx_prob;
 
 #define MAX_PROB 255
 
-#define vp9_prob_half ((vp9_prob) 128)
+#define vpx_prob_half ((vpx_prob) 128)
 
 typedef int8_t vp9_tree_index;
 
@@ -43,28 +43,28 @@
 
 typedef const vp9_tree_index vp9_tree[];
 
-static INLINE vp9_prob clip_prob(int p) {
+static INLINE vpx_prob clip_prob(int p) {
   return (p > 255) ? 255 : (p < 1) ? 1 : p;
 }
 
-static INLINE vp9_prob get_prob(int num, int den) {
+static INLINE vpx_prob get_prob(int num, int den) {
   return (den == 0) ? 128u : clip_prob(((int64_t)num * 256 + (den >> 1)) / den);
 }
 
-static INLINE vp9_prob get_binary_prob(int n0, int n1) {
+static INLINE vpx_prob get_binary_prob(int n0, int n1) {
   return get_prob(n0, n0 + n1);
 }
 
 /* This function assumes prob1 and prob2 are already within [1,255] range. */
-static INLINE vp9_prob weighted_prob(int prob1, int prob2, int factor) {
+static INLINE vpx_prob weighted_prob(int prob1, int prob2, int factor) {
   return ROUND_POWER_OF_TWO(prob1 * (256 - factor) + prob2 * factor, 8);
 }
 
-static INLINE vp9_prob merge_probs(vp9_prob pre_prob,
+static INLINE vpx_prob merge_probs(vpx_prob pre_prob,
                                    const unsigned int ct[2],
                                    unsigned int count_sat,
                                    unsigned int max_update_factor) {
-  const vp9_prob prob = get_binary_prob(ct[0], ct[1]);
+  const vpx_prob prob = get_binary_prob(ct[0], ct[1]);
   const unsigned int count = MIN(ct[0] + ct[1], count_sat);
   const unsigned int factor = max_update_factor * count / count_sat;
   return weighted_prob(pre_prob, prob, factor);
@@ -76,7 +76,7 @@
   70, 76, 83, 89, 96, 102, 108, 115, 121, 128
 };
 
-static INLINE vp9_prob mode_mv_merge_probs(vp9_prob pre_prob,
+static INLINE vpx_prob mode_mv_merge_probs(vpx_prob pre_prob,
                                            const unsigned int ct[2]) {
   const unsigned int den = ct[0] + ct[1];
   if (den == 0) {
@@ -84,14 +84,14 @@
   } else {
     const unsigned int count = MIN(den, MODE_MV_COUNT_SAT);
     const unsigned int factor = count_to_update_factor[count];
-    const vp9_prob prob =
+    const vpx_prob prob =
         clip_prob(((int64_t)(ct[0]) * 256 + (den >> 1)) / den);
     return weighted_prob(pre_prob, prob, factor);
   }
 }
 
-void vp9_tree_merge_probs(const vp9_tree_index *tree, const vp9_prob *pre_probs,
-                          const unsigned int *counts, vp9_prob *probs);
+void vp9_tree_merge_probs(const vp9_tree_index *tree, const vpx_prob *pre_probs,
+                          const unsigned int *counts, vpx_prob *probs);
 
 
 DECLARE_ALIGNED(16, extern const uint8_t, vp9_norm[256]);