Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
       3             :  *
       4             :  * This source code is subject to the terms of the BSD 2 Clause License and
       5             :  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
       6             :  * was not distributed with this source code in the LICENSE file, you can
       7             :  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
       8             :  * Media Patent License 1.0 was not distributed with this source code in the
       9             :  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
      10             :  */
      11             : 
      12             : #ifndef AV1_COMMON_COMMON_H_
      13             : #define AV1_COMMON_COMMON_H_
      14             : 
      15             : /* Interface header for common constant data structures and lookup tables */
      16             : 
      17             : #include <assert.h>
      18             : 
      19             : #include "aom_dsp/aom_dsp_common.h"
      20             : #include "aom_mem/aom_mem.h"
      21             : #include "aom/aom_integer.h"
      22             : #include "aom_ports/bitops.h"
      23             : 
      24             : #ifdef __cplusplus
      25             : extern "C" {
      26             : #endif
      27             : 
      28             : #define PI 3.141592653589793238462643383279502884
      29             : 
      30             : // Only need this for fixed-size arrays, for structs just assign.
      31             : #define av1_copy(dest, src)              \
      32             :   {                                      \
      33             :     assert(sizeof(dest) == sizeof(src)); \
      34             :     memcpy(dest, src, sizeof(src));      \
      35             :   }
      36             : 
      37             : // Use this for variably-sized arrays.
      38             : #define av1_copy_array(dest, src, n)           \
      39             :   {                                            \
      40             :     assert(sizeof(*(dest)) == sizeof(*(src))); \
      41             :     memcpy(dest, src, n * sizeof(*(src)));     \
      42             :   }
      43             : 
      44             : #define av1_zero(dest) memset(&(dest), 0, sizeof(dest))
      45             : #define av1_zero_array(dest, n) memset(dest, 0, n * sizeof(*(dest)))
      46             : 
      47           0 : static INLINE int get_unsigned_bits(unsigned int num_values) {
      48           0 :   return num_values > 0 ? get_msb(num_values) + 1 : 0;
      49             : }
      50             : 
      51             : #define CHECK_MEM_ERROR(cm, lval, expr) \
      52             :   AOM_CHECK_MEM_ERROR(&cm->error, lval, expr)
      53             : // TODO(yaowu: validate the usage of these codes or develop new ones.)
      54             : #define AV1_SYNC_CODE_0 0x49
      55             : #define AV1_SYNC_CODE_1 0x83
      56             : #define AV1_SYNC_CODE_2 0x43
      57             : 
      58             : #define AOM_FRAME_MARKER 0x2
      59             : 
      60             : #ifdef __cplusplus
      61             : }  // extern "C"
      62             : #endif
      63             : 
      64             : #endif  // AV1_COMMON_COMMON_H_