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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
* |
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* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
04d7f601 |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
04d7f601 |
* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
|
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/** |
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* @file |
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* common internal API header |
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*/
|
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#ifndef AVUTIL_INTERNAL_H
#define AVUTIL_INTERNAL_H |
05020c89 |
|
318049b8 |
#if !defined(DEBUG) && !defined(NDEBUG)
# define NDEBUG
#endif
|
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#include <limits.h> |
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#include <stdint.h> |
318049b8 |
#include <stddef.h>
#include <assert.h> |
dbef3f46 |
#include "config.h" |
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#include "attributes.h" |
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#include "timer.h" |
034fc7bf |
#include "cpu.h" |
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#include "dict.h" |
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#include "pixfmt.h" |
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#include "version.h" |
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|
ab441e20 |
#if ARCH_X86
# include "x86/emms.h"
#endif
|
4db96649 |
#ifndef emms_c
# define emms_c()
#endif
|
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#ifndef attribute_align_arg |
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#if ARCH_X86_32 && AV_GCC_VERSION_AT_LEAST(4,2) |
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# define attribute_align_arg __attribute__((force_align_arg_pointer))
#else
# define attribute_align_arg
#endif
#endif
|
d66c52c2 |
#if defined(_MSC_VER) && CONFIG_SHARED
# define av_export __declspec(dllimport)
#else
# define av_export
#endif
|
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#if HAVE_PRAGMA_DEPRECATED |
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# if defined(__ICL) || defined (__INTEL_COMPILER) |
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# define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:1478))
# define FF_ENABLE_DEPRECATION_WARNINGS __pragma(warning(pop))
# elif defined(_MSC_VER)
# define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:4996))
# define FF_ENABLE_DEPRECATION_WARNINGS __pragma(warning(pop))
# else
# define FF_DISABLE_DEPRECATION_WARNINGS _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
# define FF_ENABLE_DEPRECATION_WARNINGS _Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
# endif |
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#else
# define FF_DISABLE_DEPRECATION_WARNINGS
# define FF_ENABLE_DEPRECATION_WARNINGS
#endif
|
cd107896 |
|
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#define FF_MEMORY_POISON 0x2a
|
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#define MAKE_ACCESSORS(str, name, type, field) \
type av_##name##_get_##field(const str *s) { return s->field; } \
void av_##name##_set_##field(str *s, type v) { s->field = v; }
|
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// Some broken preprocessors need a second expansion
// to be forced to tokenize __VA_ARGS__ |
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#define E1(x) x |
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|
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/* Check if the hard coded offset of a struct member still matches reality.
* Induce a compilation failure if not.
*/
#define AV_CHECK_OFFSET(s, m, o) struct check_##o { \
int x_##o[offsetof(s, m) == o? 1: -1]; \
} |
218aefce |
#define LOCAL_ALIGNED_A(a, t, v, s, o, ...) \
uint8_t la_##v[sizeof(t s o) + (a)]; \
t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)
#define LOCAL_ALIGNED_D(a, t, v, s, o, ...) \
DECLARE_ALIGNED(a, t, la_##v) s o; \
t (*v) o = la_##v
|
fd1abf42 |
#define LOCAL_ALIGNED(a, t, v, ...) E1(LOCAL_ALIGNED_A(a, t, v, __VA_ARGS__,,)) |
218aefce |
#if HAVE_LOCAL_ALIGNED_8 |
fd1abf42 |
# define LOCAL_ALIGNED_8(t, v, ...) E1(LOCAL_ALIGNED_D(8, t, v, __VA_ARGS__,,)) |
218aefce |
#else
# define LOCAL_ALIGNED_8(t, v, ...) LOCAL_ALIGNED(8, t, v, __VA_ARGS__)
#endif
#if HAVE_LOCAL_ALIGNED_16 |
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# define LOCAL_ALIGNED_16(t, v, ...) E1(LOCAL_ALIGNED_D(16, t, v, __VA_ARGS__,,)) |
218aefce |
#else
# define LOCAL_ALIGNED_16(t, v, ...) LOCAL_ALIGNED(16, t, v, __VA_ARGS__)
#endif
|
25d5ea6d |
#if HAVE_LOCAL_ALIGNED_32
# define LOCAL_ALIGNED_32(t, v, ...) E1(LOCAL_ALIGNED_D(32, t, v, __VA_ARGS__,,))
#else
# define LOCAL_ALIGNED_32(t, v, ...) LOCAL_ALIGNED(32, t, v, __VA_ARGS__)
#endif
|
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#define FF_ALLOC_OR_GOTO(ctx, p, size, label)\ |
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{\ |
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p = av_malloc(size);\ |
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if (!(p) && (size) != 0) {\ |
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av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
goto label;\ |
e48a0966 |
}\
}
|
d31dbec3 |
#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\ |
05020c89 |
{\ |
ee155011 |
p = av_mallocz(size);\ |
f929ab05 |
if (!(p) && (size) != 0) {\ |
d31dbec3 |
av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\ |
47ec0b0b |
goto label;\
}\
}
#define FF_ALLOC_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
{\
p = av_malloc_array(nelem, elsize);\ |
fb33bff9 |
if (!p) {\ |
47ec0b0b |
av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
goto label;\
}\
}
#define FF_ALLOCZ_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
{\
p = av_mallocz_array(nelem, elsize);\ |
fb33bff9 |
if (!p) {\ |
47ec0b0b |
av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\ |
d31dbec3 |
goto label;\ |
05020c89 |
}\
}
|
335ee1aa |
#include "libm.h" |
7b04b8a0 |
|
33237123 |
#if defined(_MSC_VER) |
06122c25 |
#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_strtod")
#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_snprintf")
#endif
|
d80a7fe5 |
/** |
49bd8e4b |
* Return NULL if CONFIG_SMALL is true, otherwise the argument |
bfe3676f |
* without modification. Used to disable the definition of strings |
d80a7fe5 |
* (for example AVCodec long_names).
*/
#if CONFIG_SMALL
# define NULL_IF_CONFIG_SMALL(x) NULL
#else
# define NULL_IF_CONFIG_SMALL(x) x
#endif
|
33586ee7 |
/** |
cae70f99 |
* Define a function with only the non-default version specified.
*
* On systems with ELF shared libraries, all symbols exported from
* FFmpeg libraries are tagged with the name and major version of the
* library to which they belong. If a function is moved from one
* library to another, a wrapper must be retained in the original
* location to preserve binary compatibility.
*
* Functions defined with this macro will never be used to resolve
* symbols by the build-time linker.
*
* @param type return type of function
* @param name name of function
* @param args argument list of function
* @param ver version tag to assign function |
33586ee7 |
*/ |
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#if HAVE_SYMVER_ASM_LABEL |
ccc87908 |
# define FF_SYMVER(type, name, args, ver) \
type ff_##name args __asm__ (EXTERN_PREFIX #name "@" ver); \ |
b462d132 |
type ff_##name args
#elif HAVE_SYMVER_GNU_ASM |
ccc87908 |
# define FF_SYMVER(type, name, args, ver) \
__asm__ (".symver ff_" #name "," EXTERN_PREFIX #name "@" ver); \
type ff_##name args; \ |
b462d132 |
type ff_##name args
#endif
|
b38f008e |
/** |
58c42af7 |
* Return NULL if a threading library has not been enabled. |
b38f008e |
* Used to disable threading functions in AVCodec definitions
* when not needed.
*/
#if HAVE_THREADS
# define ONLY_IF_THREADS_ENABLED(x) x
#else
# define ONLY_IF_THREADS_ENABLED(x) NULL
#endif
|
f099d3d1 |
/**
* Log a generic warning message about a missing feature.
*
* @param[in] avc a pointer to an arbitrary struct of which the first
* field is a pointer to an AVClass struct
* @param[in] msg string containing the name of the missing feature
*/
void avpriv_report_missing_feature(void *avc,
const char *msg, ...) av_printf_format(2, 3);
/**
* Log a generic warning message about a missing feature.
* Additionally request that a sample showcasing the feature be uploaded.
*
* @param[in] avc a pointer to an arbitrary struct of which the first field is
* a pointer to an AVClass struct
* @param[in] msg string containing the name of the missing feature
*/
void avpriv_request_sample(void *avc,
const char *msg, ...) av_printf_format(2, 3);
|
d64341e4 |
#if HAVE_LIBC_MSVCRT |
e743e7ae |
#define avpriv_open ff_open |
ced0d6c1 |
#define PTRDIFF_SPECIFIER "Id"
#define SIZE_SPECIFIER "Iu"
#else
#define PTRDIFF_SPECIFIER "td"
#define SIZE_SPECIFIER "zu" |
e743e7ae |
#endif
|
869b04e8 |
/**
* A wrapper for open() setting O_CLOEXEC.
*/
int avpriv_open(const char *filename, int flags, ...);
|
bb41115d |
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
|
0f931b29 |
static av_always_inline av_const int avpriv_mirror(int x, int w)
{
if (!w)
return 0;
while ((unsigned)x > (unsigned)w) {
x = -x;
if (x < 0)
x += 2 * w;
}
return x;
}
|
d96e377c |
#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
uint64_t ff_get_channel_layout(const char *name, int compat);
#endif
|
3e18dc23 |
void ff_check_pixfmt_descriptors(void);
|
98790382 |
#endif /* AVUTIL_INTERNAL_H */ |