nengel@2: /*
nengel@2:  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: /**
nengel@2:  * @file
nengel@2:  * common internal API header
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_INTERNAL_H
nengel@2: #define AVUTIL_INTERNAL_H
nengel@2: 
nengel@2: #if !defined(DEBUG) && !defined(NDEBUG)
nengel@2: #    define NDEBUG
nengel@2: #endif
nengel@2: 
nengel@2: #include <limits.h>
nengel@2: #include <stdint.h>
nengel@2: #include <stddef.h>
nengel@2: #include <assert.h>
nengel@2: #include "config.h"
nengel@2: #include "attributes.h"
nengel@2: #include "timer.h"
nengel@2: 
nengel@2: 
nengel@2: 
nengel@2: #ifndef INT16_MIN
nengel@2: #define INT16_MIN       (-0x7fff - 1)
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT16_MAX
nengel@2: #define INT16_MAX       0x7fff
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT32_MIN
nengel@2: #define INT32_MIN       (-0x7fffffff - 1)
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT32_MAX
nengel@2: #define INT32_MAX       0x7fffffff
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef UINT32_MAX
nengel@2: #define UINT32_MAX      0xffffffff
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT64_MIN
nengel@2: #define INT64_MIN       (-0x7fffffffffffffffLL - 1)
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT64_MAX
nengel@2: #define INT64_MAX INT64_C(9223372036854775807)
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef UINT64_MAX
nengel@2: #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef INT_BIT
nengel@2: #    define INT_BIT (CHAR_BIT * sizeof(int))
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef offsetof
nengel@2: #    define offsetof(T, F) ((unsigned int)((char *)&((T *)0)->F))
nengel@2: #endif
nengel@2: 
nengel@2: /* Use to export labels from asm. */
nengel@2: #define LABEL_MANGLE(a) #a
nengel@2: #define LOCAL_MANGLE(a) #a
nengel@2: #define MANGLE(a) #a
nengel@2: 
nengel@2: // Use rip-relative addressing if compiling PIC code on x86-64.
nengel@2: // #if ARCH_X86_64 && defined(PIC)
nengel@2: // #    define LOCAL_MANGLE(a) #a "(%%rip)"
nengel@2: // #else
nengel@2: // #    define LOCAL_MANGLE(a) #a
nengel@2: // #endif
nengel@2: // 
nengel@2: // #define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
nengel@2: 
nengel@2: /* debug stuff */
nengel@2: 
nengel@2: /* dprintf macros */
nengel@2: #ifdef DEBUG
nengel@2: #    define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
nengel@2: #else
nengel@2: #    define dprintf(pctx, ...)
nengel@2: #endif
nengel@2: 
nengel@2: #define av_abort()      do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
nengel@2: 
nengel@2: /* math */
nengel@2: 
nengel@2: 
nengel@2: /* avoid usage of dangerous/inappropriate system functions */
nengel@2: // #undef  malloc
nengel@2: // #define malloc please_use_av_malloc
nengel@2: // #undef  free
nengel@2: // #define free please_use_av_free
nengel@2: #undef  realloc
nengel@2: #define realloc please_use_av_realloc
nengel@2: #undef  time
nengel@2: #define time time_is_forbidden_due_to_security_issues
nengel@2: #undef  rand
nengel@2: #define rand rand_is_forbidden_due_to_state_trashing_use_av_lfg_get
nengel@2: #undef  srand
nengel@2: #define srand srand_is_forbidden_due_to_state_trashing_use_av_lfg_init
nengel@2: #undef  random
nengel@2: #define random random_is_forbidden_due_to_state_trashing_use_av_lfg_get
nengel@2: #undef  sprintf
nengel@2: #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
nengel@2: //#undef  exit
nengel@2: //#define exit exit_is_forbidden
nengel@2: #ifndef LIBAVFORMAT_BUILD
nengel@2: 
nengel@2: #undef  puts
nengel@2: #define puts please_use_av_log_instead_of_puts
nengel@2: #undef  perror
nengel@2: #define perror please_use_av_log_instead_of_perror
nengel@2: #endif
nengel@2: 
nengel@2: #define FF_ALLOC_OR_GOTO(p, size, label)\
nengel@2: {\
nengel@2:     p = av_malloc(size);\
nengel@2:     if (p == NULL && (size) != 0) {\
nengel@2:         av_log(AV_LOG_ERROR, "Cannot allocate memory.\n");\
nengel@2:         goto label;\
nengel@2:     }\
nengel@2: }
nengel@2: 
nengel@2: #define FF_ALLOCZ_OR_GOTO(p, size, label)\
nengel@2: {\
nengel@2:     p = av_mallocz(size);\
nengel@2:     if (p == NULL && (size) != 0) {\
nengel@2:         av_log(AV_LOG_ERROR, "Cannot allocate memory.\n");\
nengel@2:         goto label;\
nengel@2:     }\
nengel@2: }
nengel@2: 
nengel@2: 
nengel@2: /**
nengel@2:  * Returns NULL if CONFIG_SMALL is true, otherwise the argument
nengel@2:  * without modification. Used to disable the definition of strings
nengel@2:  * (for example AVCodec long_names).
nengel@2:  */
nengel@2: #if CONFIG_SMALL
nengel@2: #   define NULL_IF_CONFIG_SMALL(x) NULL
nengel@2: #else
nengel@2: #   define NULL_IF_CONFIG_SMALL(x) x
nengel@2: #endif
nengel@2: 
nengel@2: #endif /* AVUTIL_INTERNAL_H */