65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AV1_COMMON_COMMON_H_
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#define AV1_COMMON_COMMON_H_
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/* Interface header for common constant data structures and lookup tables */
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#include <assert.h>
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_mem/aom_mem.h"
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#include "aom/aom_integer.h"
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#include "aom_ports/bitops.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PI 3.141592653589793238462643383279502884
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// Only need this for fixed-size arrays, for structs just assign.
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#define av1_copy(dest, src) \
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{ \
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assert(sizeof(dest) == sizeof(src)); \
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memcpy(dest, src, sizeof(src)); \
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}
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// Use this for variably-sized arrays.
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#define av1_copy_array(dest, src, n) \
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{ \
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assert(sizeof(*(dest)) == sizeof(*(src))); \
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memcpy(dest, src, n * sizeof(*(src))); \
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}
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#define av1_zero(dest) memset(&(dest), 0, sizeof(dest))
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#define av1_zero_array(dest, n) memset(dest, 0, n * sizeof(*(dest)))
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static INLINE int get_unsigned_bits(unsigned int num_values) {
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return num_values > 0 ? get_msb(num_values) + 1 : 0;
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}
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#define CHECK_MEM_ERROR(cm, lval, expr) \
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AOM_CHECK_MEM_ERROR(&cm->error, lval, expr)
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// TODO(yaowu: validate the usage of these codes or develop new ones.)
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#define AV1_SYNC_CODE_0 0x49
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#define AV1_SYNC_CODE_1 0x83
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#define AV1_SYNC_CODE_2 0x43
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#define AOM_FRAME_MARKER 0x2
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_COMMON_COMMON_H_
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