From 9713a68719fce63f5d86b77a569e0abe6d57aee3 Mon Sep 17 00:00:00 2001
From: Dmitry Kovalev <dkovalev@google.com>
Date: Fri, 26 Apr 2013 14:39:58 -0700
Subject: [PATCH] Renaming refresh_entropy_probs to refresh_frame_context.

Change-Id: I5429c02246d198eb1b6aadbc3313b26bf3436062
---
 vp9/common/vp9_onyxc_int.h   |  2 +-
 vp9/decoder/vp9_decodframe.c |  6 +++---
 vp9/encoder/vp9_bitstream.c  |  2 +-
 vp9/encoder/vp9_onyx_if.c    | 19 +++++++------------
 vp9/encoder/vp9_ratectrl.c   |  3 +--
 5 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/vp9/common/vp9_onyxc_int.h b/vp9/common/vp9_onyxc_int.h
index 839d5a82c..dbf3bad5f 100644
--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -245,7 +245,7 @@ typedef struct VP9Common {
   int sharpness_level;
   int dering_enabled;
 
-  int refresh_entropy_probs;    /* Two state 0 = NO, 1 = YES */
+  int refresh_frame_context;    /* Two state 0 = NO, 1 = YES */
 
   int ref_frame_sign_bias[MAX_REF_FRAMES];    /* Two state 0, 1 */
 
diff --git a/vp9/decoder/vp9_decodframe.c b/vp9/decoder/vp9_decodframe.c
index 0b3d145fc..f6ed41443 100644
--- a/vp9/decoder/vp9_decodframe.c
+++ b/vp9/decoder/vp9_decodframe.c
@@ -1508,10 +1508,10 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
   }
 
   if (!pc->error_resilient_mode) {
-    pc->refresh_entropy_probs = vp9_read_bit(&header_bc);
+    pc->refresh_frame_context = vp9_read_bit(&header_bc);
     pc->frame_parallel_decoding_mode = vp9_read_bit(&header_bc);
   } else {
-    pc->refresh_entropy_probs = 0;
+    pc->refresh_frame_context = 0;
     pc->frame_parallel_decoding_mode = 1;
   }
 
@@ -1603,7 +1603,7 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
   }
 #endif
 
-  if (pc->refresh_entropy_probs)
+  if (pc->refresh_frame_context)
     pc->frame_contexts[pc->frame_context_idx] = pc->fc;
 
   *p_data_end = vp9_reader_find_end(&residual_bc);
diff --git a/vp9/encoder/vp9_bitstream.c b/vp9/encoder/vp9_bitstream.c
index 870d9d41b..7d504c74d 100644
--- a/vp9/encoder/vp9_bitstream.c
+++ b/vp9/encoder/vp9_bitstream.c
@@ -1986,7 +1986,7 @@ void vp9_pack_bitstream(VP9_COMP *cpi, unsigned char *dest,
   }
 
   if (!pc->error_resilient_mode) {
-    vp9_write_bit(&header_bc, pc->refresh_entropy_probs);
+    vp9_write_bit(&header_bc, pc->refresh_frame_context);
     vp9_write_bit(&header_bc, pc->frame_parallel_decoding_mode);
   }
 
diff --git a/vp9/encoder/vp9_onyx_if.c b/vp9/encoder/vp9_onyx_if.c
index 0b64fe1d9..7f8c029bd 100644
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -1206,7 +1206,7 @@ void vp9_change_config(VP9_PTR ptr, VP9_CONFIG *oxcf) {
   // cpi->use_last_frame_only = 0;
   cpi->refresh_golden_frame = 0;
   cpi->refresh_last_frame = 1;
-  cm->refresh_entropy_probs = 1;
+  cm->refresh_frame_context = 1;
 
   setup_features(cpi);
   cpi->mb.e_mbd.allow_high_precision_mv = 0;   // Default mv precision adaptation
@@ -2135,10 +2135,7 @@ int vp9_set_reference_enc(VP9_PTR ptr, VP9_REFFRAME ref_frame_flag,
   return 0;
 }
 int vp9_update_entropy(VP9_PTR comp, int update) {
-  VP9_COMP *cpi = (VP9_COMP *) comp;
-  VP9_COMMON *cm = &cpi->common;
-  cm->refresh_entropy_probs = update;
-
+  ((VP9_COMP *)comp)->common.refresh_frame_context = update;
   return 0;
 }
 
@@ -2751,7 +2748,7 @@ static void encode_frame_to_data_rate(VP9_COMP *cpi,
       (cpi->oxcf.frame_parallel_decoding_mode != 0);
     if (cm->error_resilient_mode) {
       cm->frame_parallel_decoding_mode = 1;
-      cm->refresh_entropy_probs = 0;
+      cm->refresh_frame_context = 0;
     }
   }
 
@@ -3730,7 +3727,7 @@ static int frame_is_reference(const VP9_COMP *cpi) {
          cpi->refresh_last_frame ||
          cpi->refresh_golden_frame ||
          cpi->refresh_alt_ref_frame ||
-         cm->refresh_entropy_probs ||
+         cm->refresh_frame_context ||
          mb->mode_ref_lf_delta_update ||
          mb->update_mb_segmentation_map ||
          mb->update_mb_segmentation_data;
@@ -4000,17 +3997,15 @@ int vp9_get_compressed_data(VP9_PTR ptr, unsigned int *frame_flags,
     encode_frame_to_data_rate(cpi, size, dest, frame_flags);
   }
 
-  if (cm->refresh_entropy_probs) {
-    vpx_memcpy(&cm->frame_contexts[cm->frame_context_idx], &cm->fc,
-               sizeof(cm->fc));
-  }
+  if (cm->refresh_frame_context)
+    cm->frame_contexts[cm->frame_context_idx] = cm->fc;
 
   if (*size > 0) {
     // if its a dropped frame honor the requests on subsequent frames
     cpi->droppable = !frame_is_reference(cpi);
 
     // return to normal state
-    cm->refresh_entropy_probs = 1;
+    cm->refresh_frame_context = 1;
     cpi->refresh_alt_ref_frame = 0;
     cpi->refresh_golden_frame = 0;
     cpi->refresh_last_frame = 1;
diff --git a/vp9/encoder/vp9_ratectrl.c b/vp9/encoder/vp9_ratectrl.c
index 7a419fb61..e3f6f45a7 100644
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -262,8 +262,7 @@ void vp9_setup_inter_frame(VP9_COMP *cpi) {
     vp9_setup_past_independence(cm, xd);
 
   assert(cm->frame_context_idx < NUM_FRAME_CONTEXTS);
-  vpx_memcpy(&cm->fc, &cm->frame_contexts[cm->frame_context_idx],
-             sizeof(cm->fc));
+  cm->fc = cm->frame_contexts[cm->frame_context_idx];
 }
 
 static int estimate_bits_at_q(int frame_kind, int q, int mbs,