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authorMoonchild <mcwerewolf@gmail.com>2018-10-24 05:58:24 +0200
committerGitHub <noreply@github.com>2018-10-24 05:58:24 +0200
commitd1a35c3fa6a59f622becc328bf00eff98732dc53 (patch)
tree6792772d3cb4e22e4bac907376ba17d3030bd008 /third_party/aom/av1/common/tile_common.h
parent81acc4099a515cc1b74ec2b0669aa85fe078aabc (diff)
parent192199b03fa2e56d2728b0de1dbe4bedfc1edc50 (diff)
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Merge pull request #850 from trav90/add-av1-support
Add initial support for AV1 video.
Diffstat (limited to 'third_party/aom/av1/common/tile_common.h')
-rw-r--r--third_party/aom/av1/common/tile_common.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/tile_common.h b/third_party/aom/av1/common/tile_common.h
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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.
+ */
+
+#ifndef AOM_AV1_COMMON_TILE_COMMON_H_
+#define AOM_AV1_COMMON_TILE_COMMON_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "config/aom_config.h"
+
+struct AV1Common;
+
+#define DEFAULT_MAX_NUM_TG 1
+
+typedef struct TileInfo {
+ int mi_row_start, mi_row_end;
+ int mi_col_start, mi_col_end;
+ int tg_horz_boundary;
+ int tile_row;
+ int tile_col;
+} TileInfo;
+
+// initializes 'tile->mi_(row|col)_(start|end)' for (row, col) based on
+// 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
+void av1_tile_init(TileInfo *tile, const struct AV1Common *cm, int row,
+ int col);
+
+void av1_tile_set_row(TileInfo *tile, const struct AV1Common *cm, int row);
+void av1_tile_set_col(TileInfo *tile, const struct AV1Common *cm, int col);
+void av1_get_tile_n_bits(int mi_cols, int *min_log2_tile_cols,
+ int *max_log2_tile_cols);
+
+// Calculate the correct tile size (width or height) for (1 << log2_tile_num)
+// tiles horizontally or vertically in the frame.
+int get_tile_size(int mi_frame_size, int log2_tile_num, int *ntiles);
+
+int av1_get_sb_rows_in_tile(struct AV1Common *cm, TileInfo tile);
+int av1_get_sb_cols_in_tile(struct AV1Common *cm, TileInfo tile);
+
+typedef struct {
+ int left, top, right, bottom;
+} AV1PixelRect;
+
+// Return the pixel extents of the given tile
+AV1PixelRect av1_get_tile_rect(const TileInfo *tile_info,
+ const struct AV1Common *cm, int is_uv);
+
+// Define tile maximum width and area
+// There is no maximum height since height is limited by area and width limits
+// The minimum tile width or height is fixed at one superblock
+#define MAX_TILE_WIDTH (4096) // Max Tile width in pixels
+#define MAX_TILE_AREA (4096 * 2304) // Maximum tile area in pixels
+
+void av1_get_tile_limits(struct AV1Common *const cm);
+void av1_calculate_tile_cols(struct AV1Common *const cm);
+void av1_calculate_tile_rows(struct AV1Common *const cm);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_AV1_COMMON_TILE_COMMON_H_