vpx/vp9/common/vp9_tile_common.h
James Zern 58a0f6dbdd vp9: add TileInfo
replaces use of cur_tile_mi_(row|col)_(start|end) by VP9_COMMON, making
it less stateful and more reusable for parallel tile decoding

Change-Id: I1df09382b4567a0e5f4434825d47c79afe2399be
2013-10-28 20:54:43 +01:00

30 lines
1011 B
C

/*
* Copyright (c) 2010 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.
*/
#ifndef VP9_COMMON_VP9_TILE_COMMON_H_
#define VP9_COMMON_VP9_TILE_COMMON_H_
struct VP9Common;
typedef struct TileInfo {
int mi_row_start, mi_row_end;
int mi_col_start, mi_col_end;
} TileInfo;
// initializes 'tile->mi_(row|col)_(start|end)' for (row_idx, col_idx) based on
// 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
void vp9_tile_init(TileInfo *tile, const struct VP9Common *cm,
int row_idx, int col_idx);
void vp9_get_tile_n_bits(int mi_cols,
int *min_log2_tile_cols, int *max_log2_tile_cols);
#endif // VP9_COMMON_VP9_TILE_COMMON_H_