ref: 63963f51efc1a51fc809b3fc50974f55ae0edf1f
parent: cf4dfdc8e7999b69a3e3881953f5063730737804
author: Dmitry Kovalev <dkovalev@google.com>
date: Fri Dec 6 06:23:01 EST 2013
Renaming reference mode context calculation function. Renames: vp9_get_pred_context_comp_inter_inter => vp9_get_reference_mode_context vp9_get_pred_prob_comp_inter_inter => vp9_get_reference_mode_prob Change-Id: I3bbb69481e6b0c848028667c9269f567f293d3bd
--- a/vp9/common/vp9_pred_common.c
+++ b/vp9/common/vp9_pred_common.c
@@ -83,16 +83,14 @@
else
return 0;
}
-// Returns a context number for the given MB prediction signal
-unsigned char vp9_get_pred_context_comp_inter_inter(const VP9_COMMON *cm,
- const MACROBLOCKD *xd) {- int pred_context;
- const MODE_INFO *const above_mi = get_above_mi(xd);
- const MODE_INFO *const left_mi = get_left_mi(xd);
- const MB_MODE_INFO *const above_mbmi = get_above_mbmi(above_mi);
- const MB_MODE_INFO *const left_mbmi = get_left_mbmi(left_mi);
- const int above_in_image = above_mi != NULL;
- const int left_in_image = left_mi != NULL;
+
+int vp9_get_reference_mode_context(const VP9_COMMON *cm,
+ const MACROBLOCKD *xd) {+ int ctx;
+ const MB_MODE_INFO *const above_mbmi = get_above_mbmi(get_above_mi(xd));
+ const MB_MODE_INFO *const left_mbmi = get_left_mbmi(get_left_mi(xd));
+ const int above_in_image = above_mbmi != NULL;
+ const int left_in_image = left_mbmi != NULL;
// Note:
// The mode info data structure has a one element border above and to the
// left of the entries correpsonding to real macroblocks.
@@ -100,32 +98,32 @@
if (above_in_image && left_in_image) { // both edges availableif (!has_second_ref(above_mbmi) && !has_second_ref(left_mbmi))
// neither edge uses comp pred (0/1)
- pred_context = (above_mbmi->ref_frame[0] == cm->comp_fixed_ref) ^
- (left_mbmi->ref_frame[0] == cm->comp_fixed_ref);
+ ctx = (above_mbmi->ref_frame[0] == cm->comp_fixed_ref) ^
+ (left_mbmi->ref_frame[0] == cm->comp_fixed_ref);
else if (!has_second_ref(above_mbmi))
// one of two edges uses comp pred (2/3)
- pred_context = 2 + (above_mbmi->ref_frame[0] == cm->comp_fixed_ref ||
- !is_inter_block(above_mbmi));
+ ctx = 2 + (above_mbmi->ref_frame[0] == cm->comp_fixed_ref ||
+ !is_inter_block(above_mbmi));
else if (!has_second_ref(left_mbmi))
// one of two edges uses comp pred (2/3)
- pred_context = 2 + (left_mbmi->ref_frame[0] == cm->comp_fixed_ref ||
- !is_inter_block(left_mbmi));
+ ctx = 2 + (left_mbmi->ref_frame[0] == cm->comp_fixed_ref ||
+ !is_inter_block(left_mbmi));
else // both edges use comp pred (4)
- pred_context = 4;
+ ctx = 4;
} else if (above_in_image || left_in_image) { // one edge availableconst MB_MODE_INFO *edge_mbmi = above_in_image ? above_mbmi : left_mbmi;
if (!has_second_ref(edge_mbmi))
// edge does not use comp pred (0/1)
- pred_context = edge_mbmi->ref_frame[0] == cm->comp_fixed_ref;
+ ctx = edge_mbmi->ref_frame[0] == cm->comp_fixed_ref;
else
// edge uses comp pred (3)
- pred_context = 3;
+ ctx = 3;
} else { // no edges available (1)- pred_context = 1;
+ ctx = 1;
}
- assert(pred_context >= 0 && pred_context < COMP_INTER_CONTEXTS);
- return pred_context;
+ assert(ctx >= 0 && ctx < COMP_INTER_CONTEXTS);
+ return ctx;
}
// Returns a context number for the given MB prediction signal
--- a/vp9/common/vp9_pred_common.h
+++ b/vp9/common/vp9_pred_common.h
@@ -68,15 +68,11 @@
return cm->fc.intra_inter_prob[vp9_get_intra_inter_context(xd)];
}
-unsigned char vp9_get_pred_context_comp_inter_inter(const VP9_COMMON *cm,
- const MACROBLOCKD *xd);
+int vp9_get_reference_mode_context(const VP9_COMMON *cm, const MACROBLOCKD *xd);
-
-static INLINE
-vp9_prob vp9_get_pred_prob_comp_inter_inter(const VP9_COMMON *cm,
- const MACROBLOCKD *xd) {- const int pred_context = vp9_get_pred_context_comp_inter_inter(cm, xd);
- return cm->fc.comp_inter_prob[pred_context];
+static INLINE vp9_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)];
}
unsigned char vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
--- a/vp9/decoder/vp9_decodemv.c
+++ b/vp9/decoder/vp9_decodemv.c
@@ -258,10 +258,9 @@
mv->col = ref->col + diff.col;
}
-static REFERENCE_MODE read_reference_mode(VP9_COMMON *cm,
- const MACROBLOCKD *xd,
- vp9_reader *r) {- const int ctx = vp9_get_pred_context_comp_inter_inter(cm, xd);
+static REFERENCE_MODE read_reference_mode(VP9_COMMON *cm, const MACROBLOCKD *xd,
+ vp9_reader *r) {+ const int ctx = vp9_get_reference_mode_context(cm, xd);
const int mode = vp9_read(r, cm->fc.comp_inter_prob[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.comp_inter[ctx][mode];
--- a/vp9/encoder/vp9_bitstream.c
+++ b/vp9/encoder/vp9_bitstream.c
@@ -233,10 +233,10 @@
// (if not specified at the frame/segment level)
if (cm->comp_pred_mode == REFERENCE_MODE_SELECT) {vp9_write(bc, mi->ref_frame[1] > INTRA_FRAME,
- vp9_get_pred_prob_comp_inter_inter(cm, xd));
+ vp9_get_reference_mode_prob(cm, xd));
} else {assert((mi->ref_frame[1] <= INTRA_FRAME) ==
- (cm->comp_pred_mode == SINGLE_REFERENCE));
+ (cm->comp_pred_mode == SINGLE_REFERENCE));
}
if (mi->ref_frame[1] > INTRA_FRAME) {--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -759,7 +759,7 @@
// the reference frame counts used to work out probabilities.
if (is_inter_block(mbmi) && !seg_ref_active) {if (cm->comp_pred_mode == REFERENCE_MODE_SELECT)
- cpi->comp_inter_count[vp9_get_pred_context_comp_inter_inter(cm, xd)]
+ cpi->comp_inter_count[vp9_get_reference_mode_context(cm, xd)]
[has_second_ref(mbmi)]++;
if (has_second_ref(mbmi)) {--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -2149,7 +2149,7 @@
vp9_prob comp_inter_p = 128;
if (cm->comp_pred_mode == REFERENCE_MODE_SELECT) {- comp_inter_p = vp9_get_pred_prob_comp_inter_inter(cm, xd);
+ comp_inter_p = vp9_get_reference_mode_prob(cm, xd);
*comp_mode_p = comp_inter_p;
} else {*comp_mode_p = 128;
--
⑨