26 #ifndef AVUTIL_INTERNAL_H
27 #define AVUTIL_INTERNAL_H
29 #if !defined(DEBUG) && !defined(NDEBUG)
53 # define emms_c() while(0)
56 #ifndef attribute_align_arg
57 #if ARCH_X86_32 && AV_GCC_VERSION_AT_LEAST(4,2)
58 # define attribute_align_arg __attribute__((force_align_arg_pointer))
60 # define attribute_align_arg
64 #if defined(_MSC_VER) && CONFIG_SHARED
65 # define av_export __declspec(dllimport)
70 #if HAVE_PRAGMA_DEPRECATED
71 # if defined(__ICL) || defined (__INTEL_COMPILER)
72 # define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:1478))
73 # define FF_ENABLE_DEPRECATION_WARNINGS __pragma(warning(pop))
74 # elif defined(_MSC_VER)
75 # define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:4996))
76 # define FF_ENABLE_DEPRECATION_WARNINGS __pragma(warning(pop))
78 # define FF_DISABLE_DEPRECATION_WARNINGS _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
79 # define FF_ENABLE_DEPRECATION_WARNINGS _Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
82 # define FF_DISABLE_DEPRECATION_WARNINGS
83 # define FF_ENABLE_DEPRECATION_WARNINGS
87 #define FF_MEMORY_POISON 0x2a
89 #define MAKE_ACCESSORS(str, name, type, field) \
90 type av_##name##_get_##field(const str *s) { return s->field; } \
91 void av_##name##_set_##field(str *s, type v) { s->field = v; }
100 #define AV_CHECK_OFFSET(s, m, o) struct check_##o { \
101 int x_##o[offsetof(s, m) == o? 1: -1]; \
104 #define LOCAL_ALIGNED_A(a, t, v, s, o, ...) \
105 uint8_t la_##v[sizeof(t s o) + (a)]; \
106 t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)
108 #define LOCAL_ALIGNED_D(a, t, v, s, o, ...) \
109 DECLARE_ALIGNED(a, t, la_##v) s o; \
112 #define LOCAL_ALIGNED(a, t, v, ...) E1(LOCAL_ALIGNED_A(a, t, v, __VA_ARGS__,,))
114 #if HAVE_LOCAL_ALIGNED_8
115 # define LOCAL_ALIGNED_8(t, v, ...) E1(LOCAL_ALIGNED_D(8, t, v, __VA_ARGS__,,))
117 # define LOCAL_ALIGNED_8(t, v, ...) LOCAL_ALIGNED(8, t, v, __VA_ARGS__)
120 #if HAVE_LOCAL_ALIGNED_16
121 # define LOCAL_ALIGNED_16(t, v, ...) E1(LOCAL_ALIGNED_D(16, t, v, __VA_ARGS__,,))
123 # define LOCAL_ALIGNED_16(t, v, ...) LOCAL_ALIGNED(16, t, v, __VA_ARGS__)
126 #if HAVE_LOCAL_ALIGNED_32
127 # define LOCAL_ALIGNED_32(t, v, ...) E1(LOCAL_ALIGNED_D(32, t, v, __VA_ARGS__,,))
129 # define LOCAL_ALIGNED_32(t, v, ...) LOCAL_ALIGNED(32, t, v, __VA_ARGS__)
132 #define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
134 p = av_malloc(size);\
135 if (!(p) && (size) != 0) {\
136 av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
141 #define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\
143 p = av_mallocz(size);\
144 if (!(p) && (size) != 0) {\
145 av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
150 #define FF_ALLOC_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
152 p = av_malloc_array(nelem, elsize);\
154 av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
159 #define FF_ALLOCZ_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
161 p = av_mallocz_array(nelem, elsize);\
163 av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
176 # define NULL_IF_CONFIG_SMALL(x) NULL
178 # define NULL_IF_CONFIG_SMALL(x) x
198 #if HAVE_SYMVER_ASM_LABEL
199 # define FF_SYMVER(type, name, args, ver) \
200 type ff_##name args __asm__ (EXTERN_PREFIX #name "@" ver); \
202 #elif HAVE_SYMVER_GNU_ASM
203 # define FF_SYMVER(type, name, args, ver) \
204 __asm__ (".symver ff_" #name "," EXTERN_PREFIX #name "@" ver); \
205 type ff_##name args; \
215 # define ONLY_IF_THREADS_ENABLED(x) x
217 # define ONLY_IF_THREADS_ENABLED(x) NULL
242 #include <crtversion.h>
243 #if defined(_VC_CRT_MAJOR_VERSION) && _VC_CRT_MAJOR_VERSION < 14
244 #pragma comment(linker, "/include:" EXTERN_PREFIX "avpriv_strtod")
245 #pragma comment(linker, "/include:" EXTERN_PREFIX "avpriv_snprintf")
248 #define avpriv_open ff_open
249 #define PTRDIFF_SPECIFIER "Id"
250 #define SIZE_SPECIFIER "Iu"
252 #define PTRDIFF_SPECIFIER "td"
253 #define SIZE_SPECIFIER "zu"
257 # define ff_dlog(ctx, ...) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__)
259 # define ff_dlog(ctx, ...) do { if (0) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
266 #define SUINT32 int32_t
268 #define SUINT unsigned
269 #define SUINT32 uint32_t
284 while ((
unsigned)x > (
unsigned)w) {
292 #if FF_API_GET_CHANNEL_LAYOUT_COMPAT
static enum AVPixelFormat pix_fmt
Macro definitions for various function/variable attributes.
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
high precision timer, useful to profile code
const uint8_t ff_reverse[256]
Libavutil version macros.
#define av_printf_format(fmtpos, attrpos)
static av_always_inline av_const int avpriv_mirror(int x, int w)
Replacements for frequently missing libm functions.
int avpriv_open(const char *filename, int flags,...)
A wrapper for open() setting O_CLOEXEC.
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
void ff_check_pixfmt_descriptors(void)
uint64_t ff_get_channel_layout(const char *name, int compat)
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt)
AVPixelFormat
Pixel format.