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comparison: media/libvpx/vp9/common/vp9_common.h
media/libvpx/vp9/common/vp9_common.h
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| -1:000000000000 | 0:e20613676318 |
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| 1 /* | |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef VP9_COMMON_VP9_COMMON_H_ | |
| 12 #define VP9_COMMON_VP9_COMMON_H_ | |
| 13 | |
| 14 /* Interface header for common constant data structures and lookup tables */ | |
| 15 | |
| 16 #include <assert.h> | |
| 17 | |
| 18 #include "./vpx_config.h" | |
| 19 #include "vpx_mem/vpx_mem.h" | |
| 20 #include "vpx/vpx_integer.h" | |
| 21 | |
| 22 #define MIN(x, y) (((x) < (y)) ? (x) : (y)) | |
| 23 #define MAX(x, y) (((x) > (y)) ? (x) : (y)) | |
| 24 | |
| 25 #define ROUND_POWER_OF_TWO(value, n) \ | |
| 26 (((value) + (1 << ((n) - 1))) >> (n)) | |
| 27 | |
| 28 #define ALIGN_POWER_OF_TWO(value, n) \ | |
| 29 (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1)) | |
| 30 | |
| 31 // Only need this for fixed-size arrays, for structs just assign. | |
| 32 #define vp9_copy(dest, src) { \ | |
| 33 assert(sizeof(dest) == sizeof(src)); \ | |
| 34 vpx_memcpy(dest, src, sizeof(src)); \ | |
| 35 } | |
| 36 | |
| 37 // Use this for variably-sized arrays. | |
| 38 #define vp9_copy_array(dest, src, n) { \ | |
| 39 assert(sizeof(*dest) == sizeof(*src)); \ | |
| 40 vpx_memcpy(dest, src, n * sizeof(*src)); \ | |
| 41 } | |
| 42 | |
| 43 #define vp9_zero(dest) vpx_memset(&dest, 0, sizeof(dest)) | |
| 44 #define vp9_zero_array(dest, n) vpx_memset(dest, 0, n * sizeof(*dest)) | |
| 45 | |
| 46 static INLINE uint8_t clip_pixel(int val) { | |
| 47 return (val > 255) ? 255u : (val < 0) ? 0u : val; | |
| 48 } | |
| 49 | |
| 50 static INLINE int clamp(int value, int low, int high) { | |
| 51 return value < low ? low : (value > high ? high : value); | |
| 52 } | |
| 53 | |
| 54 static INLINE double fclamp(double value, double low, double high) { | |
| 55 return value < low ? low : (value > high ? high : value); | |
| 56 } | |
| 57 | |
| 58 static int get_unsigned_bits(unsigned int num_values) { | |
| 59 int cat = 0; | |
| 60 if (num_values <= 1) | |
| 61 return 0; | |
| 62 num_values--; | |
| 63 while (num_values > 0) { | |
| 64 cat++; | |
| 65 num_values >>= 1; | |
| 66 } | |
| 67 return cat; | |
| 68 } | |
| 69 | |
| 70 #if CONFIG_DEBUG | |
| 71 #define CHECK_MEM_ERROR(cm, lval, expr) do { \ | |
| 72 lval = (expr); \ | |
| 73 if (!lval) \ | |
| 74 vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR, \ | |
| 75 "Failed to allocate "#lval" at %s:%d", \ | |
| 76 __FILE__, __LINE__); \ | |
| 77 } while (0) | |
| 78 #else | |
| 79 #define CHECK_MEM_ERROR(cm, lval, expr) do { \ | |
| 80 lval = (expr); \ | |
| 81 if (!lval) \ | |
| 82 vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR, \ | |
| 83 "Failed to allocate "#lval); \ | |
| 84 } while (0) | |
| 85 #endif | |
| 86 | |
| 87 #define VP9_SYNC_CODE_0 0x49 | |
| 88 #define VP9_SYNC_CODE_1 0x83 | |
| 89 #define VP9_SYNC_CODE_2 0x42 | |
| 90 | |
| 91 #define VP9_FRAME_MARKER 0x2 | |
| 92 | |
| 93 | |
| 94 #endif // VP9_COMMON_VP9_COMMON_H_ |
