ref: f288c943c4d6c3fb03266dee821df797fb99bde0
dir: /vp10/common/common.h/
/* * 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 VP10_COMMON_COMMON_H_ #define VP10_COMMON_COMMON_H_ /* Interface header for common constant data structures and lookup tables */ #include <assert.h> #include "./vpx_config.h" #include "vpx_dsp/vpx_dsp_common.h" #include "vpx_mem/vpx_mem.h" #include "vpx/vpx_integer.h" #include "vpx_ports/bitops.h" #ifdef __cplusplus extern "C" { #endif // Only need this for fixed-size arrays, for structs just assign. #define vp10_copy(dest, src) { \ assert(sizeof(dest) == sizeof(src)); \ memcpy(dest, src, sizeof(src)); \ } // Use this for variably-sized arrays. #define vp10_copy_array(dest, src, n) { \ assert(sizeof(*dest) == sizeof(*src)); \ memcpy(dest, src, n * sizeof(*src)); \ } #define vp10_zero(dest) memset(&(dest), 0, sizeof(dest)) #define vp10_zero_array(dest, n) memset(dest, 0, n * sizeof(*dest)) static INLINE int get_unsigned_bits(unsigned int num_values) { return num_values > 0 ? get_msb(num_values) + 1 : 0; } #if CONFIG_DEBUG #define CHECK_MEM_ERROR(cm, lval, expr) do { \ lval = (expr); \ if (!lval) \ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR, \ "Failed to allocate "#lval" at %s:%d", \ __FILE__, __LINE__); \ } while (0) #else #define CHECK_MEM_ERROR(cm, lval, expr) do { \ lval = (expr); \ if (!lval) \ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR, \ "Failed to allocate "#lval); \ } while (0) #endif // TODO(yaowu: validate the usage of these codes or develop new ones.) #define VP10_SYNC_CODE_0 0x49 #define VP10_SYNC_CODE_1 0x83 #define VP10_SYNC_CODE_2 0x43 #define VP9_FRAME_MARKER 0x2 #ifdef __cplusplus } // extern "C" #endif #endif // VP10_COMMON_COMMON_H_