ref: 44395a21da75a8fa6ca71a39bee1c9fe55a1358e
parent: 7eca086707f3e0f631a5be8952f594f4c387ca74
author: hkuang <hkuang@google.com>
date: Mon Jul 28 07:06:24 EDT 2014
Move vp9_dec_build_inter_predictors_* to decoder folder. Change-Id: Ibe9fa28440cc79ba9f3504d78c7dca7bb01a23e1
--- a/vp9/common/vp9_reconinter.c
+++ b/vp9/common/vp9_reconinter.c
@@ -20,51 +20,8 @@
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_reconintra.h"
-static void build_mc_border(const uint8_t *src, int src_stride,
+void inter_predictor(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
- int x, int y, int b_w, int b_h, int w, int h) {- // Get a pointer to the start of the real data for this row.
- const uint8_t *ref_row = src - x - y * src_stride;
-
- if (y >= h)
- ref_row += (h - 1) * src_stride;
- else if (y > 0)
- ref_row += y * src_stride;
-
- do {- int right = 0, copy;
- int left = x < 0 ? -x : 0;
-
- if (left > b_w)
- left = b_w;
-
- if (x + b_w > w)
- right = x + b_w - w;
-
- if (right > b_w)
- right = b_w;
-
- copy = b_w - left - right;
-
- if (left)
- memset(dst, ref_row[0], left);
-
- if (copy)
- memcpy(dst + left, ref_row + x + left, copy);
-
- if (right)
- memset(dst + left + copy, ref_row[w - 1], right);
-
- dst += dst_stride;
- ++y;
-
- if (y > 0 && y < h)
- ref_row += src_stride;
- } while (--b_h);
-}
-
-static void inter_predictor(const uint8_t *src, int src_stride,
- uint8_t *dst, int dst_stride,
const int subpel_x,
const int subpel_y,
const struct scale_factors *sf,
@@ -151,7 +108,7 @@
return clamped_mv;
}
-static MV average_split_mvs(const struct macroblockd_plane *pd, int plane,
+MV average_split_mvs(const struct macroblockd_plane *pd, int plane,
const MODE_INFO *mi, int ref, int block) {const int ss_idx = ((pd->subsampling_x > 0) << 1) | (pd->subsampling_y > 0);
MV res = {0, 0};@@ -174,7 +131,7 @@
return res;
}
-static void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
+void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
int bw, int bh,
int x, int y, int w, int h,
int mi_x, int mi_y) {@@ -268,169 +225,6 @@
BLOCK_SIZE bsize) {build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 0,
MAX_MB_PLANE - 1);
-}
-
-// TODO(jingning): This function serves as a placeholder for decoder prediction
-// using on demand border extension. It should be moved to /decoder/ directory.
-static void dec_build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
- int bw, int bh,
- int x, int y, int w, int h,
- int mi_x, int mi_y) {- struct macroblockd_plane *const pd = &xd->plane[plane];
- const MODE_INFO *mi = xd->mi[0];
- const int is_compound = has_second_ref(&mi->mbmi);
- const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
- int ref;
-
- for (ref = 0; ref < 1 + is_compound; ++ref) {- const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
- struct buf_2d *const pre_buf = &pd->pre[ref];
- struct buf_2d *const dst_buf = &pd->dst;
- uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
- const MV mv = mi->mbmi.sb_type < BLOCK_8X8
- ? average_split_mvs(pd, plane, mi, ref, block)
- : mi->mbmi.mv[ref].as_mv;
-
-
- // TODO(jkoleszar): This clamping is done in the incorrect place for the
- // scaling case. It needs to be done on the scaled MV, not the pre-scaling
- // MV. Note however that it performs the subsampling aware scaling so
- // that the result is always q4.
- // mv_precision precision is MV_PRECISION_Q4.
- const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh,
- pd->subsampling_x,
- pd->subsampling_y);
-
- MV32 scaled_mv;
- int xs, ys, x0, y0, x0_16, y0_16, frame_width, frame_height, buf_stride,
- subpel_x, subpel_y;
- uint8_t *ref_frame, *buf_ptr;
- const YV12_BUFFER_CONFIG *ref_buf = xd->block_refs[ref]->buf;
-
- // Get reference frame pointer, width and height.
- if (plane == 0) {- frame_width = ref_buf->y_crop_width;
- frame_height = ref_buf->y_crop_height;
- ref_frame = ref_buf->y_buffer;
- } else {- frame_width = ref_buf->uv_crop_width;
- frame_height = ref_buf->uv_crop_height;
- ref_frame = plane == 1 ? ref_buf->u_buffer : ref_buf->v_buffer;
- }
-
- if (vp9_is_scaled(sf)) {- // Co-ordinate of containing block to pixel precision.
- int x_start = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x));
- int y_start = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y));
-
- // Co-ordinate of the block to 1/16th pixel precision.
- x0_16 = (x_start + x) << SUBPEL_BITS;
- y0_16 = (y_start + y) << SUBPEL_BITS;
-
- // Co-ordinate of current block in reference frame
- // to 1/16th pixel precision.
- x0_16 = sf->scale_value_x(x0_16, sf);
- y0_16 = sf->scale_value_y(y0_16, sf);
-
- // Map the top left corner of the block into the reference frame.
- x0 = sf->scale_value_x(x_start + x, sf);
- y0 = sf->scale_value_y(y_start + y, sf);
-
- // Scale the MV and incorporate the sub-pixel offset of the block
- // in the reference frame.
- scaled_mv = vp9_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
- xs = sf->x_step_q4;
- ys = sf->y_step_q4;
- } else {- // Co-ordinate of containing block to pixel precision.
- x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
- y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
-
- // Co-ordinate of the block to 1/16th pixel precision.
- x0_16 = x0 << SUBPEL_BITS;
- y0_16 = y0 << SUBPEL_BITS;
-
- scaled_mv.row = mv_q4.row;
- scaled_mv.col = mv_q4.col;
- xs = ys = 16;
- }
- subpel_x = scaled_mv.col & SUBPEL_MASK;
- subpel_y = scaled_mv.row & SUBPEL_MASK;
-
- // Calculate the top left corner of the best matching block in the reference frame.
- x0 += scaled_mv.col >> SUBPEL_BITS;
- y0 += scaled_mv.row >> SUBPEL_BITS;
- x0_16 += scaled_mv.col;
- y0_16 += scaled_mv.row;
-
- // Get reference block pointer.
- buf_ptr = ref_frame + y0 * pre_buf->stride + x0;
- buf_stride = pre_buf->stride;
-
- // Do border extension if there is motion or the
- // width/height is not a multiple of 8 pixels.
- if (scaled_mv.col || scaled_mv.row ||
- (frame_width & 0x7) || (frame_height & 0x7)) {- // Get reference block bottom right coordinate.
- int x1 = ((x0_16 + (w - 1) * xs) >> SUBPEL_BITS) + 1;
- int y1 = ((y0_16 + (h - 1) * ys) >> SUBPEL_BITS) + 1;
- int x_pad = 0, y_pad = 0;
-
- if (subpel_x || (sf->x_step_q4 & SUBPEL_MASK)) {- x0 -= VP9_INTERP_EXTEND - 1;
- x1 += VP9_INTERP_EXTEND;
- x_pad = 1;
- }
-
- if (subpel_y || (sf->y_step_q4 & SUBPEL_MASK)) {- y0 -= VP9_INTERP_EXTEND - 1;
- y1 += VP9_INTERP_EXTEND;
- y_pad = 1;
- }
-
- // Skip border extension if block is inside the frame.
- if (x0 < 0 || x0 > frame_width - 1 || x1 < 0 || x1 > frame_width ||
- y0 < 0 || y0 > frame_height - 1 || y1 < 0 || y1 > frame_height - 1) {- uint8_t *buf_ptr1 = ref_frame + y0 * pre_buf->stride + x0;
- // Extend the border.
- build_mc_border(buf_ptr1, pre_buf->stride, xd->mc_buf, x1 - x0 + 1,
- x0, y0, x1 - x0 + 1, y1 - y0 + 1, frame_width,
- frame_height);
- buf_stride = x1 - x0 + 1;
- buf_ptr = xd->mc_buf + y_pad * 3 * buf_stride + x_pad * 3;
- }
- }
-
- inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys);
- }
-}
-
-void vp9_dec_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
- BLOCK_SIZE bsize) {- int plane;
- const int mi_x = mi_col * MI_SIZE;
- const int mi_y = mi_row * MI_SIZE;
- for (plane = 0; plane < MAX_MB_PLANE; ++plane) {- const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize,
- &xd->plane[plane]);
- const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
- const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
- const int bw = 4 * num_4x4_w;
- const int bh = 4 * num_4x4_h;
-
- if (xd->mi[0]->mbmi.sb_type < BLOCK_8X8) {- int i = 0, x, y;
- assert(bsize == BLOCK_8X8);
- for (y = 0; y < num_4x4_h; ++y)
- for (x = 0; x < num_4x4_w; ++x)
- dec_build_inter_predictors(xd, plane, i++, bw, bh,
- 4 * x, 4 * y, 4, 4, mi_x, mi_y);
- } else {- dec_build_inter_predictors(xd, plane, 0, bw, bh,
- 0, 0, bw, bh, mi_x, mi_y);
- }
- }
}
void vp9_setup_dst_planes(struct macroblockd_plane planes[MAX_MB_PLANE],
--- a/vp9/common/vp9_reconinter.h
+++ b/vp9/common/vp9_reconinter.h
@@ -18,6 +18,26 @@
extern "C" {#endif
+void inter_predictor(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride,
+ const int subpel_x,
+ const int subpel_y,
+ const struct scale_factors *sf,
+ int w, int h, int ref,
+ const InterpKernel *kernel,
+ int xs, int ys);
+
+MV average_split_mvs(const struct macroblockd_plane *pd, int plane,
+ const MODE_INFO *mi, int ref, int block);
+
+MV clamp_mv_to_umv_border_sb(const MACROBLOCKD *xd, const MV *src_mv,
+ int bw, int bh, int ss_x, int ss_y);
+
+void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
+ int bw, int bh,
+ int x, int y, int w, int h,
+ int mi_x, int mi_y);
+
void vp9_build_inter_predictors_sby(MACROBLOCKD *xd, int mi_row, int mi_col,
BLOCK_SIZE bsize);
@@ -26,9 +46,6 @@
void vp9_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
BLOCK_SIZE bsize);
-
-void vp9_dec_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
- BLOCK_SIZE bsize);
void vp9_build_inter_predictor(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -1410,3 +1410,208 @@
if (cm->refresh_frame_context)
cm->frame_contexts[cm->frame_context_idx] = cm->fc;
}
+
+static void build_mc_border(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride,
+ int x, int y, int b_w, int b_h, int w, int h) {+ // Get a pointer to the start of the real data for this row.
+ const uint8_t *ref_row = src - x - y * src_stride;
+
+ if (y >= h)
+ ref_row += (h - 1) * src_stride;
+ else if (y > 0)
+ ref_row += y * src_stride;
+
+ do {+ int right = 0, copy;
+ int left = x < 0 ? -x : 0;
+
+ if (left > b_w)
+ left = b_w;
+
+ if (x + b_w > w)
+ right = x + b_w - w;
+
+ if (right > b_w)
+ right = b_w;
+
+ copy = b_w - left - right;
+
+ if (left)
+ memset(dst, ref_row[0], left);
+
+ if (copy)
+ memcpy(dst + left, ref_row + x + left, copy);
+
+ if (right)
+ memset(dst + left + copy, ref_row[w - 1], right);
+
+ dst += dst_stride;
+ ++y;
+
+ if (y > 0 && y < h)
+ ref_row += src_stride;
+ } while (--b_h);
+}
+
+void dec_build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
+ int bw, int bh,
+ int x, int y, int w, int h,
+ int mi_x, int mi_y) {+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ const MODE_INFO *mi = xd->mi[0];
+ const int is_compound = has_second_ref(&mi->mbmi);
+ const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
+ int ref;
+
+ for (ref = 0; ref < 1 + is_compound; ++ref) {+ const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
+ struct buf_2d *const pre_buf = &pd->pre[ref];
+ struct buf_2d *const dst_buf = &pd->dst;
+ uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
+ const MV mv = mi->mbmi.sb_type < BLOCK_8X8
+ ? average_split_mvs(pd, plane, mi, ref, block)
+ : mi->mbmi.mv[ref].as_mv;
+
+
+ // TODO(jkoleszar): This clamping is done in the incorrect place for the
+ // scaling case. It needs to be done on the scaled MV, not the pre-scaling
+ // MV. Note however that it performs the subsampling aware scaling so
+ // that the result is always q4.
+ // mv_precision precision is MV_PRECISION_Q4.
+ const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh,
+ pd->subsampling_x,
+ pd->subsampling_y);
+
+ MV32 scaled_mv;
+ int xs, ys, x0, y0, x0_16, y0_16, frame_width, frame_height, buf_stride,
+ subpel_x, subpel_y;
+ uint8_t *ref_frame, *buf_ptr;
+ const YV12_BUFFER_CONFIG *ref_buf = xd->block_refs[ref]->buf;
+
+ // Get reference frame pointer, width and height.
+ if (plane == 0) {+ frame_width = ref_buf->y_crop_width;
+ frame_height = ref_buf->y_crop_height;
+ ref_frame = ref_buf->y_buffer;
+ } else {+ frame_width = ref_buf->uv_crop_width;
+ frame_height = ref_buf->uv_crop_height;
+ ref_frame = plane == 1 ? ref_buf->u_buffer : ref_buf->v_buffer;
+ }
+
+ if (vp9_is_scaled(sf)) {+ // Co-ordinate of containing block to pixel precision.
+ int x_start = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x));
+ int y_start = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y));
+
+ // Co-ordinate of the block to 1/16th pixel precision.
+ x0_16 = (x_start + x) << SUBPEL_BITS;
+ y0_16 = (y_start + y) << SUBPEL_BITS;
+
+ // Co-ordinate of current block in reference frame
+ // to 1/16th pixel precision.
+ x0_16 = sf->scale_value_x(x0_16, sf);
+ y0_16 = sf->scale_value_y(y0_16, sf);
+
+ // Map the top left corner of the block into the reference frame.
+ x0 = sf->scale_value_x(x_start + x, sf);
+ y0 = sf->scale_value_y(y_start + y, sf);
+
+ // Scale the MV and incorporate the sub-pixel offset of the block
+ // in the reference frame.
+ scaled_mv = vp9_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
+ xs = sf->x_step_q4;
+ ys = sf->y_step_q4;
+ } else {+ // Co-ordinate of containing block to pixel precision.
+ x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
+ y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
+
+ // Co-ordinate of the block to 1/16th pixel precision.
+ x0_16 = x0 << SUBPEL_BITS;
+ y0_16 = y0 << SUBPEL_BITS;
+
+ scaled_mv.row = mv_q4.row;
+ scaled_mv.col = mv_q4.col;
+ xs = ys = 16;
+ }
+ subpel_x = scaled_mv.col & SUBPEL_MASK;
+ subpel_y = scaled_mv.row & SUBPEL_MASK;
+
+ // Calculate the top left corner of the best matching block in the
+ // reference frame.
+ x0 += scaled_mv.col >> SUBPEL_BITS;
+ y0 += scaled_mv.row >> SUBPEL_BITS;
+ x0_16 += scaled_mv.col;
+ y0_16 += scaled_mv.row;
+
+ // Get reference block pointer.
+ buf_ptr = ref_frame + y0 * pre_buf->stride + x0;
+ buf_stride = pre_buf->stride;
+
+ // Do border extension if there is motion or the
+ // width/height is not a multiple of 8 pixels.
+ if (scaled_mv.col || scaled_mv.row ||
+ (frame_width & 0x7) || (frame_height & 0x7)) {+ // Get reference block bottom right coordinate.
+ int x1 = ((x0_16 + (w - 1) * xs) >> SUBPEL_BITS) + 1;
+ int y1 = ((y0_16 + (h - 1) * ys) >> SUBPEL_BITS) + 1;
+ int x_pad = 0, y_pad = 0;
+
+ if (subpel_x || (sf->x_step_q4 & SUBPEL_MASK)) {+ x0 -= VP9_INTERP_EXTEND - 1;
+ x1 += VP9_INTERP_EXTEND;
+ x_pad = 1;
+ }
+
+ if (subpel_y || (sf->y_step_q4 & SUBPEL_MASK)) {+ y0 -= VP9_INTERP_EXTEND - 1;
+ y1 += VP9_INTERP_EXTEND;
+ y_pad = 1;
+ }
+
+ // Skip border extension if block is inside the frame.
+ if (x0 < 0 || x0 > frame_width - 1 || x1 < 0 || x1 > frame_width ||
+ y0 < 0 || y0 > frame_height - 1 || y1 < 0 || y1 > frame_height - 1) {+ uint8_t *buf_ptr1 = ref_frame + y0 * pre_buf->stride + x0;
+ // Extend the border.
+ build_mc_border(buf_ptr1, pre_buf->stride, xd->mc_buf, x1 - x0 + 1,
+ x0, y0, x1 - x0 + 1, y1 - y0 + 1, frame_width,
+ frame_height);
+ buf_stride = x1 - x0 + 1;
+ buf_ptr = xd->mc_buf + y_pad * 3 * buf_stride + x_pad * 3;
+ }
+ }
+
+ inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys);
+ }
+}
+
+void vp9_dec_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
+ BLOCK_SIZE bsize) {+ int plane;
+ const int mi_x = mi_col * MI_SIZE;
+ const int mi_y = mi_row * MI_SIZE;
+ for (plane = 0; plane < MAX_MB_PLANE; ++plane) {+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize,
+ &xd->plane[plane]);
+ const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
+ const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
+ const int bw = 4 * num_4x4_w;
+ const int bh = 4 * num_4x4_h;
+
+ if (xd->mi[0]->mbmi.sb_type < BLOCK_8X8) {+ int i = 0, x, y;
+ assert(bsize == BLOCK_8X8);
+ for (y = 0; y < num_4x4_h; ++y)
+ for (x = 0; x < num_4x4_w; ++x)
+ dec_build_inter_predictors(xd, plane, i++, bw, bh,
+ 4 * x, 4 * y, 4, 4, mi_x, mi_y);
+ } else {+ dec_build_inter_predictors(xd, plane, 0, bw, bh,
+ 0, 0, bw, bh, mi_x, mi_y);
+ }
+ }
+}
--- a/vp9/decoder/vp9_decodeframe.h
+++ b/vp9/decoder/vp9_decodeframe.h
@@ -25,6 +25,8 @@
const uint8_t *data, const uint8_t *data_end,
const uint8_t **p_data_end);
+void vp9_dec_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
+ BLOCK_SIZE bsize);
#ifdef __cplusplus
} // extern "C"
#endif