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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
commit68569dee1416593955c1570d638b3d9250b33012 (patch)
treed960f017cd7eba3f125b7e8a813789ee2e076310 /third_party/aom/av1/common/tile_common.c
parent07c17b6b98ed32fcecff15c083ab0fd878de3cf0 (diff)
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
Diffstat (limited to 'third_party/aom/av1/common/tile_common.c')
-rw-r--r--third_party/aom/av1/common/tile_common.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/tile_common.c b/third_party/aom/av1/common/tile_common.c
new file mode 100644
index 000000000..b8008ac2e
--- /dev/null
+++ b/third_party/aom/av1/common/tile_common.c
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "av1/common/tile_common.h"
+#include "av1/common/onyxc_int.h"
+#include "aom_dsp/aom_dsp_common.h"
+
+void av1_tile_set_row(TileInfo *tile, const AV1_COMMON *cm, int row) {
+ tile->mi_row_start = row * cm->tile_height;
+ tile->mi_row_end = AOMMIN(tile->mi_row_start + cm->tile_height, cm->mi_rows);
+}
+
+void av1_tile_set_col(TileInfo *tile, const AV1_COMMON *cm, int col) {
+ tile->mi_col_start = col * cm->tile_width;
+ tile->mi_col_end = AOMMIN(tile->mi_col_start + cm->tile_width, cm->mi_cols);
+}
+
+#if CONFIG_DEPENDENT_HORZTILES && CONFIG_TILE_GROUPS
+void av1_tile_set_tg_boundary(TileInfo *tile, const AV1_COMMON *const cm,
+ int row, int col) {
+ if (row < cm->tile_rows - 1) {
+ tile->tg_horz_boundary =
+ col >= cm->tile_group_start_col[row][col]
+ ? (row == cm->tile_group_start_row[row][col] ? 1 : 0)
+ : (row == cm->tile_group_start_row[row + 1][col] ? 1 : 0);
+ } else {
+ assert(col >= cm->tile_group_start_col[row][col]);
+ tile->tg_horz_boundary =
+ (row == cm->tile_group_start_row[row][col] ? 1 : 0);
+ }
+}
+#endif
+void av1_tile_init(TileInfo *tile, const AV1_COMMON *cm, int row, int col) {
+ av1_tile_set_row(tile, cm, row);
+ av1_tile_set_col(tile, cm, col);
+#if CONFIG_DEPENDENT_HORZTILES && CONFIG_TILE_GROUPS
+ av1_tile_set_tg_boundary(tile, cm, row, col);
+#endif
+}
+
+#if !CONFIG_EXT_TILE
+
+#if CONFIG_EXT_PARTITION
+#define MIN_TILE_WIDTH_MAX_SB 2
+#define MAX_TILE_WIDTH_MAX_SB 32
+#else
+#define MIN_TILE_WIDTH_MAX_SB 4
+#define MAX_TILE_WIDTH_MAX_SB 64
+#endif // CONFIG_EXT_PARTITION
+
+static int get_min_log2_tile_cols(int max_sb_cols) {
+ int min_log2 = 0;
+ while ((MAX_TILE_WIDTH_MAX_SB << min_log2) < max_sb_cols) ++min_log2;
+ return min_log2;
+}
+
+static int get_max_log2_tile_cols(int max_sb_cols) {
+ int max_log2 = 1;
+ while ((max_sb_cols >> max_log2) >= MIN_TILE_WIDTH_MAX_SB) ++max_log2;
+ return max_log2 - 1;
+}
+
+void av1_get_tile_n_bits(int mi_cols, int *min_log2_tile_cols,
+ int *max_log2_tile_cols) {
+ const int max_sb_cols =
+ ALIGN_POWER_OF_TWO(mi_cols, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2;
+ *min_log2_tile_cols = get_min_log2_tile_cols(max_sb_cols);
+ *max_log2_tile_cols = get_max_log2_tile_cols(max_sb_cols);
+ assert(*min_log2_tile_cols <= *max_log2_tile_cols);
+}
+#endif // !CONFIG_EXT_TILE
+
+void av1_update_boundary_info(const struct AV1Common *cm,
+ const TileInfo *const tile_info, int mi_row,
+ int mi_col) {
+ int row, col;
+ for (row = mi_row; row < (mi_row + cm->mib_size); row++)
+ for (col = mi_col; col < (mi_col + cm->mib_size); col++) {
+ MODE_INFO *const mi = cm->mi + row * cm->mi_stride + col;
+ mi->mbmi.boundary_info = 0;
+ if (cm->tile_cols * cm->tile_rows > 1) {
+#if CONFIG_DEPENDENT_HORZTILES
+ if (row == tile_info->mi_row_start &&
+ (!cm->dependent_horz_tiles || tile_info->tg_horz_boundary))
+#if CONFIG_TILE_GROUPS
+#else
+ if (row == tile_info->mi_row_start && !cm->dependent_horz_tiles)
+#endif // CONFIG_TILE_GROUPS
+#else
+ if (row == tile_info->mi_row_start)
+#endif // CONFIG_DEPENDENT_HORZTILES
+ mi->mbmi.boundary_info |= TILE_ABOVE_BOUNDARY;
+ if (col == tile_info->mi_col_start)
+ mi->mbmi.boundary_info |= TILE_LEFT_BOUNDARY;
+ if ((row + 1) >= tile_info->mi_row_end)
+ mi->mbmi.boundary_info |= TILE_BOTTOM_BOUNDARY;
+ if ((col + 1) >= tile_info->mi_col_end)
+ mi->mbmi.boundary_info |= TILE_RIGHT_BOUNDARY;
+ }
+ // Frame boundary is treated as tile boundary
+ if (row == 0)
+ mi->mbmi.boundary_info |= FRAME_ABOVE_BOUNDARY | TILE_ABOVE_BOUNDARY;
+ if (col == 0)
+ mi->mbmi.boundary_info |= FRAME_LEFT_BOUNDARY | TILE_LEFT_BOUNDARY;
+ if ((row + 1) >= cm->mi_rows)
+ mi->mbmi.boundary_info |= FRAME_BOTTOM_BOUNDARY | TILE_BOTTOM_BOUNDARY;
+ if ((col + 1) >= cm->mi_cols)
+ mi->mbmi.boundary_info |= FRAME_RIGHT_BOUNDARY | TILE_RIGHT_BOUNDARY;
+ }
+}
+
+#if CONFIG_LOOPFILTERING_ACROSS_TILES
+int av1_disable_loopfilter_on_tile_boundary(const struct AV1Common *cm) {
+ return (!cm->loop_filter_across_tiles_enabled &&
+ (cm->tile_cols * cm->tile_rows > 1));
+}
+#endif // CONFIG_LOOPFILTERING_ACROSS_TILES