ref: a99c20c0f47dc3e493662f5058eb96f749dee02d
parent: 63a77cbed9cfe3373defec6caca7b9d018f5b90e
author: Scott LaVarnway <slavarnway@google.com>
date: Mon Oct 24 07:37:52 EDT 2011
Removed redundant mv clamps for nearmv and nearestmv Did some cleanup as well. Patchset 2: Fixed bug. Will revisit the segmentation logic. Change-Id: Idf9fbcff9aaf467bdace9fbd58ef2cea6c602049
--- a/vp8/decoder/decodemv.c
+++ b/vp8/decoder/decodemv.c
@@ -18,94 +18,60 @@
#if CONFIG_DEBUG
#include <assert.h>
#endif
-static int vp8_read_bmode(vp8_reader *bc, const vp8_prob *p)
+static B_PREDICTION_MODE read_bmode(vp8_reader *bc, const vp8_prob *p)
{const int i = vp8_treed_read(bc, vp8_bmode_tree, p);
- return i;
+ return (B_PREDICTION_MODE)i;
}
-
-static int vp8_read_ymode(vp8_reader *bc, const vp8_prob *p)
+static MB_PREDICTION_MODE read_ymode(vp8_reader *bc, const vp8_prob *p)
{const int i = vp8_treed_read(bc, vp8_ymode_tree, p);
- return i;
+ return (MB_PREDICTION_MODE)i;
}
-static int vp8_kfread_ymode(vp8_reader *bc, const vp8_prob *p)
+static MB_PREDICTION_MODE read_kf_ymode(vp8_reader *bc, const vp8_prob *p)
{const int i = vp8_treed_read(bc, vp8_kf_ymode_tree, p);
- return i;
+ return (MB_PREDICTION_MODE)i;
}
-
-
-static int vp8_read_uv_mode(vp8_reader *bc, const vp8_prob *p)
+static MB_PREDICTION_MODE read_uv_mode(vp8_reader *bc, const vp8_prob *p)
{const int i = vp8_treed_read(bc, vp8_uv_mode_tree, p);
- return i;
+ return (MB_PREDICTION_MODE)i;
}
-static void vp8_read_mb_features(vp8_reader *r, MB_MODE_INFO *mi, MACROBLOCKD *x)
+static void read_kf_modes(VP8D_COMP *pbi, MODE_INFO *mi)
{- /* Is segmentation enabled */
- if (x->segmentation_enabled && x->update_mb_segmentation_map)
- {- /* If so then read the segment id. */
- if (vp8_read(r, x->mb_segment_tree_probs[0]))
- mi->segment_id = (unsigned char)(2 + vp8_read(r, x->mb_segment_tree_probs[2]));
- else
- mi->segment_id = (unsigned char)(vp8_read(r, x->mb_segment_tree_probs[1]));
- }
-}
-
-static void vp8_kfread_modes(VP8D_COMP *pbi, MODE_INFO *m, int mb_row, int mb_col)
-{vp8_reader *const bc = & pbi->bc;
const int mis = pbi->common.mode_info_stride;
- {- MB_PREDICTION_MODE y_mode;
+ mi->mbmi.ref_frame = INTRA_FRAME;
+ mi->mbmi.mode = read_kf_ymode(bc, pbi->common.kf_ymode_prob);
- /* Read the Macroblock segmentation map if it is being updated explicitly this frame (reset to 0 above by default)
- * By default on a key frame reset all MBs to segment 0
- */
- m->mbmi.segment_id = 0;
+ if (mi->mbmi.mode == B_PRED)
+ {+ int i = 0;
- if (pbi->mb.update_mb_segmentation_map)
- vp8_read_mb_features(bc, &m->mbmi, &pbi->mb);
+ do
+ {+ const B_PREDICTION_MODE A = above_block_mode(mi, i, mis);
+ const B_PREDICTION_MODE L = left_block_mode(mi, i);
- /* Read the macroblock coeff skip flag if this feature is in use, else default to 0 */
- if (pbi->common.mb_no_coeff_skip)
- m->mbmi.mb_skip_coeff = vp8_read(bc, pbi->prob_skip_false);
- else
- m->mbmi.mb_skip_coeff = 0;
+ mi->bmi[i].as_mode =
+ read_bmode(bc, pbi->common.kf_bmode_prob [A] [L]);
+ }
+ while (++i < 16);
+ }
- y_mode = (MB_PREDICTION_MODE) vp8_kfread_ymode(bc, pbi->common.kf_ymode_prob);
-
- m->mbmi.ref_frame = INTRA_FRAME;
-
- if ((m->mbmi.mode = y_mode) == B_PRED)
- {- int i = 0;
-
- do
- {- const B_PREDICTION_MODE A = above_block_mode(m, i, mis);
- const B_PREDICTION_MODE L = left_block_mode(m, i);
-
- m->bmi[i].as_mode = (B_PREDICTION_MODE) vp8_read_bmode(bc, pbi->common.kf_bmode_prob [A] [L]);
- }
- while (++i < 16);
- }
+ mi->mbmi.uv_mode = read_uv_mode(bc, pbi->common.kf_uv_mode_prob);
+}
- m->mbmi.uv_mode = (MB_PREDICTION_MODE)vp8_read_uv_mode(bc, pbi->common.kf_uv_mode_prob);
- }
-}
-
static int read_mvcomponent(vp8_reader *r, const MV_CONTEXT *mvc)
{const vp8_prob *const p = (const vp8_prob *) mvc;
@@ -187,17 +153,6 @@
return (B_PREDICTION_MODE)i;
}
-#ifdef VPX_MODE_COUNT
-unsigned int vp8_mv_cont_count[5][4] =
-{- { 0, 0, 0, 0 },- { 0, 0, 0, 0 },- { 0, 0, 0, 0 },- { 0, 0, 0, 0 },- { 0, 0, 0, 0 }-};
-#endif
-
static const unsigned char mbsplit_fill_count[4] = {8, 8, 4, 1}; static const unsigned char mbsplit_fill_offset[4][16] = { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},@@ -236,7 +191,8 @@
do
{- pbi->common.fc.ymode_prob[i] = (vp8_prob) vp8_read_literal(bc, 8);
+ pbi->common.fc.ymode_prob[i] =
+ (vp8_prob) vp8_read_literal(bc, 8);
}
while (++i < 4);
}
@@ -247,7 +203,8 @@
do
{- pbi->common.fc.uv_mode_prob[i] = (vp8_prob) vp8_read_literal(bc, 8);
+ pbi->common.fc.uv_mode_prob[i] =
+ (vp8_prob) vp8_read_literal(bc, 8);
}
while (++i < 3);
}
@@ -277,7 +234,8 @@
mbmi->need_to_clamp_mvs = 0;
/* Distance of Mb to the various image edges.
- * These specified to 8th pel as they are always compared to MV values that are in 1/8th pel units
+ * These specified to 8th pel as they are always compared to MV values
+ * that are in 1/8th pel units
*/
pbi->mb.mb_to_left_edge =
mb_to_left_edge = -((mb_col * 16) << 3);
@@ -287,18 +245,10 @@
mb_to_right_edge = ((pbi->common.mb_cols - 1 - mb_col) * 16) << 3;
mb_to_right_edge += RIGHT_BOTTOM_MARGIN;
- /* If required read in new segmentation data for this MB */
- if (pbi->mb.update_mb_segmentation_map)
- vp8_read_mb_features(bc, mbmi, &pbi->mb);
- /* Read the macroblock coeff skip flag if this feature is in use, else default to 0 */
- if (pbi->common.mb_no_coeff_skip)
- mbmi->mb_skip_coeff = vp8_read(bc, pbi->prob_skip_false);
- else
- mbmi->mb_skip_coeff = 0;
-
- if ((mbmi->ref_frame = (MV_REFERENCE_FRAME) vp8_read(bc, pbi->prob_intra))) /* inter MB */
+ if ((mbmi->ref_frame = (MV_REFERENCE_FRAME) vp8_read(bc, pbi->prob_intra)))
{+ /* inter MB */
int rct[4];
vp8_prob mv_ref_p [VP8_MVREFS-1];
int_mv nearest, nearby, best_mv;
@@ -305,10 +255,12 @@
if (vp8_read(bc, pbi->prob_last))
{- mbmi->ref_frame = (MV_REFERENCE_FRAME)((int)mbmi->ref_frame + (int)(1 + vp8_read(bc, pbi->prob_gf)));
+ mbmi->ref_frame = (MV_REFERENCE_FRAME)((int)mbmi->ref_frame +
+ (int)(1 + vp8_read(bc, pbi->prob_gf)));
}
- vp8_find_near_mvs(&pbi->mb, mi, &nearest, &nearby, &best_mv, rct, mbmi->ref_frame, pbi->common.ref_frame_sign_bias);
+ vp8_find_near_mvs(&pbi->mb, mi, &nearest, &nearby, &best_mv, rct,
+ mbmi->ref_frame, pbi->common.ref_frame_sign_bias);
vp8_mv_ref_probs(mv_ref_p, rct);
@@ -334,33 +286,21 @@
abovemv.as_int = above_block_mv(mi, k, mis);
mv_contz = vp8_mv_cont(&leftmv, &abovemv);
- switch (sub_mv_ref(bc, vp8_sub_mv_ref_prob2 [mv_contz])) /*pc->fc.sub_mv_ref_prob))*/
+ switch (sub_mv_ref(bc, vp8_sub_mv_ref_prob2 [mv_contz]))
{case NEW4X4:
read_mv(bc, &blockmv.as_mv, (const MV_CONTEXT *) mvc);
blockmv.as_mv.row += best_mv.as_mv.row;
blockmv.as_mv.col += best_mv.as_mv.col;
- #ifdef VPX_MODE_COUNT
- vp8_mv_cont_count[mv_contz][3]++;
- #endif
break;
case LEFT4X4:
blockmv.as_int = leftmv.as_int;
- #ifdef VPX_MODE_COUNT
- vp8_mv_cont_count[mv_contz][0]++;
- #endif
break;
case ABOVE4X4:
blockmv.as_int = abovemv.as_int;
- #ifdef VPX_MODE_COUNT
- vp8_mv_cont_count[mv_contz][1]++;
- #endif
break;
case ZERO4X4:
blockmv.as_int = 0;
- #ifdef VPX_MODE_COUNT
- vp8_mv_cont_count[mv_contz][2]++;
- #endif
break;
default:
break;
@@ -379,7 +319,8 @@
const unsigned char *fill_offset;
unsigned int fill_count = mbsplit_fill_count[s];
- fill_offset = &mbsplit_fill_offset[s][(unsigned char)j * mbsplit_fill_count[s]];
+ fill_offset = &mbsplit_fill_offset[s]
+ [(unsigned char)j * mbsplit_fill_count[s]];
do {mi->bmi[ *fill_offset].mv.as_int = blockmv.as_int;
@@ -397,16 +338,10 @@
case NEARMV:
mv->as_int = nearby.as_int;
- /* Clip "next_nearest" so that it does not extend to far out of image */
- vp8_clamp_mv(mv, mb_to_left_edge, mb_to_right_edge,
- mb_to_top_edge, mb_to_bottom_edge);
goto propagate_mv;
case NEARESTMV:
mv->as_int = nearest.as_int;
- /* Clip "next_nearest" so that it does not extend to far out of image */
- vp8_clamp_mv(mv, mb_to_left_edge, mb_to_right_edge,
- mb_to_top_edge, mb_to_bottom_edge);
goto propagate_mv;
case ZEROMV:
@@ -452,10 +387,11 @@
}
#endif
break;
- default:;
+ default:
#if CONFIG_DEBUG
assert(0);
#endif
+ break;
}
}
else
@@ -464,21 +400,62 @@
mbmi->mv.as_int = 0;
/* MB is intra coded */
- if ((mbmi->mode = (MB_PREDICTION_MODE) vp8_read_ymode(bc, pbi->common.fc.ymode_prob)) == B_PRED)
+ if ((mbmi->mode = read_ymode(bc, pbi->common.fc.ymode_prob)) == B_PRED)
{int j = 0;
do
{- mi->bmi[j].as_mode = (B_PREDICTION_MODE)vp8_read_bmode(bc, pbi->common.fc.bmode_prob);
+ mi->bmi[j].as_mode = read_bmode(bc, pbi->common.fc.bmode_prob);
}
while (++j < 16);
}
- mbmi->uv_mode = (MB_PREDICTION_MODE)vp8_read_uv_mode(bc, pbi->common.fc.uv_mode_prob);
+ mbmi->uv_mode = read_uv_mode(bc, pbi->common.fc.uv_mode_prob);
}
}
+static void read_mb_features(vp8_reader *r, MB_MODE_INFO *mi, MACROBLOCKD *x)
+{+ /* Is segmentation enabled */
+ if (x->segmentation_enabled && x->update_mb_segmentation_map)
+ {+ /* If so then read the segment id. */
+ if (vp8_read(r, x->mb_segment_tree_probs[0]))
+ mi->segment_id =
+ (unsigned char)(2 + vp8_read(r, x->mb_segment_tree_probs[2]));
+ else
+ mi->segment_id =
+ (unsigned char)(vp8_read(r, x->mb_segment_tree_probs[1]));
+ }
+}
+
+static void decode_mb_mode_mvs(VP8D_COMP *pbi, MODE_INFO *mi,
+ MB_MODE_INFO *mbmi, int mb_row, int mb_col)
+{+ /* Read the Macroblock segmentation map if it is being updated explicitly
+ * this frame (reset to 0 above by default)
+ * By default on a key frame reset all MBs to segment 0
+ */
+ if (pbi->mb.update_mb_segmentation_map)
+ read_mb_features(&pbi->bc, &mi->mbmi, &pbi->mb);
+ else if(pbi->common.frame_type == KEY_FRAME)
+ mi->mbmi.segment_id = 0;
+
+ /* Read the macroblock coeff skip flag if this feature is in use,
+ * else default to 0 */
+ if (pbi->common.mb_no_coeff_skip)
+ mi->mbmi.mb_skip_coeff = vp8_read(&pbi->bc, pbi->prob_skip_false);
+ else
+ mi->mbmi.mb_skip_coeff = 0;
+
+ if(pbi->common.frame_type == KEY_FRAME)
+ read_kf_modes(pbi, mi);
+ else
+ read_mb_modes_mv(pbi, mi, &mi->mbmi, mb_row, mb_col);
+
+}
+
void vp8_decode_mode_mvs(VP8D_COMP *pbi)
{MODE_INFO *mi = pbi->common.mi;
@@ -489,16 +466,10 @@
while (++mb_row < pbi->common.mb_rows)
{int mb_col = -1;
- int mb_to_top_edge;
- int mb_to_bottom_edge;
- pbi->mb.mb_to_top_edge =
- mb_to_top_edge = -((mb_row * 16)) << 3;
- mb_to_top_edge -= LEFT_TOP_MARGIN;
-
+ pbi->mb.mb_to_top_edge = -((mb_row * 16)) << 3;
pbi->mb.mb_to_bottom_edge =
- mb_to_bottom_edge = ((pbi->common.mb_rows - 1 - mb_row) * 16) << 3;
- mb_to_bottom_edge += RIGHT_BOTTOM_MARGIN;
+ ((pbi->common.mb_rows - 1 - mb_row) * 16) << 3;
while (++mb_col < pbi->common.mb_cols)
{@@ -505,11 +476,8 @@
#if CONFIG_ERROR_CONCEALMENT
int mb_num = mb_row * pbi->common.mb_cols + mb_col;
#endif
- /*read_mb_modes_mv(pbi, xd->mode_info_context, &xd->mode_info_context->mbmi, mb_row, mb_col);*/
- if(pbi->common.frame_type == KEY_FRAME)
- vp8_kfread_modes(pbi, mi, mb_row, mb_col);
- else
- read_mb_modes_mv(pbi, mi, &mi->mbmi, mb_row, mb_col);
+
+ decode_mb_mode_mvs(pbi, mi, &mi->mbmi, mb_row, mb_col);
#if CONFIG_ERROR_CONCEALMENT
/* look for corruption. set mvs_corrupt_from_mb to the current