diff options
Diffstat (limited to 'thirdparty/libvpx/vp9/common/vp9_pred_common.c')
| -rw-r--r-- | thirdparty/libvpx/vp9/common/vp9_pred_common.c | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/thirdparty/libvpx/vp9/common/vp9_pred_common.c b/thirdparty/libvpx/vp9/common/vp9_pred_common.c deleted file mode 100644 index 8f90e70e73..0000000000 --- a/thirdparty/libvpx/vp9/common/vp9_pred_common.c +++ /dev/null @@ -1,314 +0,0 @@ - -/* - * Copyright (c) 2012 The WebM project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#include "vp9/common/vp9_common.h" -#include "vp9/common/vp9_pred_common.h" -#include "vp9/common/vp9_seg_common.h" - -// Returns a context number for the given MB prediction signal -int vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd) { - // Note: - // The mode info data structure has a one element border above and to the - // left of the entries corresponding to real macroblocks. - // The prediction flags in these dummy entries are initialized to 0. - const MODE_INFO *const left_mi = xd->left_mi; - const int left_type = left_mi && is_inter_block(left_mi) ? - left_mi->interp_filter : SWITCHABLE_FILTERS; - const MODE_INFO *const above_mi = xd->above_mi; - const int above_type = above_mi && is_inter_block(above_mi) ? - above_mi->interp_filter : SWITCHABLE_FILTERS; - - if (left_type == above_type) - return left_type; - else if (left_type == SWITCHABLE_FILTERS) - return above_type; - else if (above_type == SWITCHABLE_FILTERS) - return left_type; - else - return SWITCHABLE_FILTERS; -} - -int vp9_get_reference_mode_context(const VP9_COMMON *cm, - const MACROBLOCKD *xd) { - int ctx; - const MODE_INFO *const above_mi = xd->above_mi; - const MODE_INFO *const left_mi = xd->left_mi; - const int has_above = !!above_mi; - const int has_left = !!left_mi; - // Note: - // The mode info data structure has a one element border above and to the - // left of the entries corresponding to real macroblocks. - // The prediction flags in these dummy entries are initialized to 0. - if (has_above && has_left) { // both edges available - if (!has_second_ref(above_mi) && !has_second_ref(left_mi)) - // neither edge uses comp pred (0/1) - ctx = (above_mi->ref_frame[0] == cm->comp_fixed_ref) ^ - (left_mi->ref_frame[0] == cm->comp_fixed_ref); - else if (!has_second_ref(above_mi)) - // one of two edges uses comp pred (2/3) - ctx = 2 + (above_mi->ref_frame[0] == cm->comp_fixed_ref || - !is_inter_block(above_mi)); - else if (!has_second_ref(left_mi)) - // one of two edges uses comp pred (2/3) - ctx = 2 + (left_mi->ref_frame[0] == cm->comp_fixed_ref || - !is_inter_block(left_mi)); - else // both edges use comp pred (4) - ctx = 4; - } else if (has_above || has_left) { // one edge available - const MODE_INFO *edge_mi = has_above ? above_mi : left_mi; - - if (!has_second_ref(edge_mi)) - // edge does not use comp pred (0/1) - ctx = edge_mi->ref_frame[0] == cm->comp_fixed_ref; - else - // edge uses comp pred (3) - ctx = 3; - } else { // no edges available (1) - ctx = 1; - } - assert(ctx >= 0 && ctx < COMP_INTER_CONTEXTS); - return ctx; -} - -// Returns a context number for the given MB prediction signal -int vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm, - const MACROBLOCKD *xd) { - int pred_context; - const MODE_INFO *const above_mi = xd->above_mi; - const MODE_INFO *const left_mi = xd->left_mi; - const int above_in_image = !!above_mi; - const int left_in_image = !!left_mi; - - // Note: - // The mode info data structure has a one element border above and to the - // left of the entries corresponding to real macroblocks. - // The prediction flags in these dummy entries are initialized to 0. - const int fix_ref_idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref]; - const int var_ref_idx = !fix_ref_idx; - - if (above_in_image && left_in_image) { // both edges available - const int above_intra = !is_inter_block(above_mi); - const int left_intra = !is_inter_block(left_mi); - - if (above_intra && left_intra) { // intra/intra (2) - pred_context = 2; - } else if (above_intra || left_intra) { // intra/inter - const MODE_INFO *edge_mi = above_intra ? left_mi : above_mi; - - if (!has_second_ref(edge_mi)) // single pred (1/3) - pred_context = 1 + 2 * (edge_mi->ref_frame[0] != cm->comp_var_ref[1]); - else // comp pred (1/3) - pred_context = 1 + 2 * (edge_mi->ref_frame[var_ref_idx] - != cm->comp_var_ref[1]); - } else { // inter/inter - const int l_sg = !has_second_ref(left_mi); - const int a_sg = !has_second_ref(above_mi); - const MV_REFERENCE_FRAME vrfa = a_sg ? above_mi->ref_frame[0] - : above_mi->ref_frame[var_ref_idx]; - const MV_REFERENCE_FRAME vrfl = l_sg ? left_mi->ref_frame[0] - : left_mi->ref_frame[var_ref_idx]; - - if (vrfa == vrfl && cm->comp_var_ref[1] == vrfa) { - pred_context = 0; - } else if (l_sg && a_sg) { // single/single - if ((vrfa == cm->comp_fixed_ref && vrfl == cm->comp_var_ref[0]) || - (vrfl == cm->comp_fixed_ref && vrfa == cm->comp_var_ref[0])) - pred_context = 4; - else if (vrfa == vrfl) - pred_context = 3; - else - pred_context = 1; - } else if (l_sg || a_sg) { // single/comp - const MV_REFERENCE_FRAME vrfc = l_sg ? vrfa : vrfl; - const MV_REFERENCE_FRAME rfs = a_sg ? vrfa : vrfl; - if (vrfc == cm->comp_var_ref[1] && rfs != cm->comp_var_ref[1]) - pred_context = 1; - else if (rfs == cm->comp_var_ref[1] && vrfc != cm->comp_var_ref[1]) - pred_context = 2; - else - pred_context = 4; - } else if (vrfa == vrfl) { // comp/comp - pred_context = 4; - } else { - pred_context = 2; - } - } - } else if (above_in_image || left_in_image) { // one edge available - const MODE_INFO *edge_mi = above_in_image ? above_mi : left_mi; - - if (!is_inter_block(edge_mi)) { - pred_context = 2; - } else { - if (has_second_ref(edge_mi)) - pred_context = 4 * (edge_mi->ref_frame[var_ref_idx] - != cm->comp_var_ref[1]); - else - pred_context = 3 * (edge_mi->ref_frame[0] != cm->comp_var_ref[1]); - } - } else { // no edges available (2) - pred_context = 2; - } - assert(pred_context >= 0 && pred_context < REF_CONTEXTS); - - return pred_context; -} - -int vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd) { - int pred_context; - const MODE_INFO *const above_mi = xd->above_mi; - const MODE_INFO *const left_mi = xd->left_mi; - const int has_above = !!above_mi; - const int has_left = !!left_mi; - // Note: - // The mode info data structure has a one element border above and to the - // left of the entries corresponding to real macroblocks. - // The prediction flags in these dummy entries are initialized to 0. - if (has_above && has_left) { // both edges available - const int above_intra = !is_inter_block(above_mi); - const int left_intra = !is_inter_block(left_mi); - - if (above_intra && left_intra) { // intra/intra - pred_context = 2; - } else if (above_intra || left_intra) { // intra/inter or inter/intra - const MODE_INFO *edge_mi = above_intra ? left_mi : above_mi; - if (!has_second_ref(edge_mi)) - pred_context = 4 * (edge_mi->ref_frame[0] == LAST_FRAME); - else - pred_context = 1 + (edge_mi->ref_frame[0] == LAST_FRAME || - edge_mi->ref_frame[1] == LAST_FRAME); - } else { // inter/inter - const int above_has_second = has_second_ref(above_mi); - const int left_has_second = has_second_ref(left_mi); - const MV_REFERENCE_FRAME above0 = above_mi->ref_frame[0]; - const MV_REFERENCE_FRAME above1 = above_mi->ref_frame[1]; - const MV_REFERENCE_FRAME left0 = left_mi->ref_frame[0]; - const MV_REFERENCE_FRAME left1 = left_mi->ref_frame[1]; - - if (above_has_second && left_has_second) { - pred_context = 1 + (above0 == LAST_FRAME || above1 == LAST_FRAME || - left0 == LAST_FRAME || left1 == LAST_FRAME); - } else if (above_has_second || left_has_second) { - const MV_REFERENCE_FRAME rfs = !above_has_second ? above0 : left0; - const MV_REFERENCE_FRAME crf1 = above_has_second ? above0 : left0; - const MV_REFERENCE_FRAME crf2 = above_has_second ? above1 : left1; - - if (rfs == LAST_FRAME) - pred_context = 3 + (crf1 == LAST_FRAME || crf2 == LAST_FRAME); - else - pred_context = (crf1 == LAST_FRAME || crf2 == LAST_FRAME); - } else { - pred_context = 2 * (above0 == LAST_FRAME) + 2 * (left0 == LAST_FRAME); - } - } - } else if (has_above || has_left) { // one edge available - const MODE_INFO *edge_mi = has_above ? above_mi : left_mi; - if (!is_inter_block(edge_mi)) { // intra - pred_context = 2; - } else { // inter - if (!has_second_ref(edge_mi)) - pred_context = 4 * (edge_mi->ref_frame[0] == LAST_FRAME); - else - pred_context = 1 + (edge_mi->ref_frame[0] == LAST_FRAME || - edge_mi->ref_frame[1] == LAST_FRAME); - } - } else { // no edges available - pred_context = 2; - } - - assert(pred_context >= 0 && pred_context < REF_CONTEXTS); - return pred_context; -} - -int vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd) { - int pred_context; - const MODE_INFO *const above_mi = xd->above_mi; - const MODE_INFO *const left_mi = xd->left_mi; - const int has_above = !!above_mi; - const int has_left = !!left_mi; - - // Note: - // The mode info data structure has a one element border above and to the - // left of the entries corresponding to real macroblocks. - // The prediction flags in these dummy entries are initialized to 0. - if (has_above && has_left) { // both edges available - const int above_intra = !is_inter_block(above_mi); - const int left_intra = !is_inter_block(left_mi); - - if (above_intra && left_intra) { // intra/intra - pred_context = 2; - } else if (above_intra || left_intra) { // intra/inter or inter/intra - const MODE_INFO *edge_mi = above_intra ? left_mi : above_mi; - if (!has_second_ref(edge_mi)) { - if (edge_mi->ref_frame[0] == LAST_FRAME) - pred_context = 3; - else - pred_context = 4 * (edge_mi->ref_frame[0] == GOLDEN_FRAME); - } else { - pred_context = 1 + 2 * (edge_mi->ref_frame[0] == GOLDEN_FRAME || - edge_mi->ref_frame[1] == GOLDEN_FRAME); - } - } else { // inter/inter - const int above_has_second = has_second_ref(above_mi); - const int left_has_second = has_second_ref(left_mi); - const MV_REFERENCE_FRAME above0 = above_mi->ref_frame[0]; - const MV_REFERENCE_FRAME above1 = above_mi->ref_frame[1]; - const MV_REFERENCE_FRAME left0 = left_mi->ref_frame[0]; - const MV_REFERENCE_FRAME left1 = left_mi->ref_frame[1]; - - if (above_has_second && left_has_second) { - if (above0 == left0 && above1 == left1) - pred_context = 3 * (above0 == GOLDEN_FRAME || - above1 == GOLDEN_FRAME || - left0 == GOLDEN_FRAME || - left1 == GOLDEN_FRAME); - else - pred_context = 2; - } else if (above_has_second || left_has_second) { - const MV_REFERENCE_FRAME rfs = !above_has_second ? above0 : left0; - const MV_REFERENCE_FRAME crf1 = above_has_second ? above0 : left0; - const MV_REFERENCE_FRAME crf2 = above_has_second ? above1 : left1; - - if (rfs == GOLDEN_FRAME) - pred_context = 3 + (crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME); - else if (rfs == ALTREF_FRAME) - pred_context = crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME; - else - pred_context = 1 + 2 * (crf1 == GOLDEN_FRAME || crf2 == GOLDEN_FRAME); - } else { - if (above0 == LAST_FRAME && left0 == LAST_FRAME) { - pred_context = 3; - } else if (above0 == LAST_FRAME || left0 == LAST_FRAME) { - const MV_REFERENCE_FRAME edge0 = (above0 == LAST_FRAME) ? left0 - : above0; - pred_context = 4 * (edge0 == GOLDEN_FRAME); - } else { - pred_context = 2 * (above0 == GOLDEN_FRAME) + - 2 * (left0 == GOLDEN_FRAME); - } - } - } - } else if (has_above || has_left) { // one edge available - const MODE_INFO *edge_mi = has_above ? above_mi : left_mi; - - if (!is_inter_block(edge_mi) || - (edge_mi->ref_frame[0] == LAST_FRAME && !has_second_ref(edge_mi))) - pred_context = 2; - else if (!has_second_ref(edge_mi)) - pred_context = 4 * (edge_mi->ref_frame[0] == GOLDEN_FRAME); - else - pred_context = 3 * (edge_mi->ref_frame[0] == GOLDEN_FRAME || - edge_mi->ref_frame[1] == GOLDEN_FRAME); - } else { // no edges available (2) - pred_context = 2; - } - assert(pred_context >= 0 && pred_context < REF_CONTEXTS); - return pred_context; -} |