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authorDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
committerDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
commit0ea721f7ce81357bc4ec6eea609cd50482c3d15b (patch)
tree25a0871cb3c06f9716acf9c204192d548f214048 /contrib/ffmpeg/libavutil/internal.h
parentd8ec380876e7f697ba609546d61757ab3f2d8715 (diff)
downloadxine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.gz
xine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.bz2
Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course.
CVS patchset: 8397 CVS date: 2006/12/02 01:19:48
Diffstat (limited to 'contrib/ffmpeg/libavutil/internal.h')
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diff --git a/contrib/ffmpeg/libavutil/internal.h b/contrib/ffmpeg/libavutil/internal.h
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+++ b/contrib/ffmpeg/libavutil/internal.h
@@ -0,0 +1,235 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * 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
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file internal.h
+ * common internal api header.
+ */
+
+#ifndef INTERNAL_H
+#define INTERNAL_H
+
+#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
+# define PIC
+#endif
+
+#ifndef ENODATA
+# define ENODATA 61
+#endif
+
+#include "bswap.h"
+
+#include <stddef.h>
+#ifndef offsetof
+# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
+#endif
+
+#ifdef __MINGW32__
+# ifdef _DEBUG
+# define DEBUG
+# endif
+
+# define snprintf _snprintf
+# define vsnprintf _vsnprintf
+
+# ifdef CONFIG_WINCE
+# define perror(a)
+# define abort()
+# endif
+
+/* __MINGW32__ end */
+#elif defined (CONFIG_OS2)
+/* OS/2 EMX */
+
+# include <float.h>
+
+#endif /* !__MINGW32__ && CONFIG_OS2 */
+
+#ifdef USE_FASTMEMCPY
+# include "libvo/fastmemcpy.h"
+#endif
+
+// Use rip-relative addressing if compiling PIC code on x86-64.
+#if defined(__MINGW32__) || defined(__CYGWIN__) || \
+ defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
+# if defined(ARCH_X86_64) && defined(PIC)
+# define MANGLE(a) "_" #a"(%%rip)"
+# else
+# define MANGLE(a) "_" #a
+# endif
+#else
+# if defined(ARCH_X86_64) && defined(PIC)
+# define MANGLE(a) #a"(%%rip)"
+# elif defined(CONFIG_DARWIN)
+# define MANGLE(a) "_" #a
+# else
+# define MANGLE(a) #a
+# endif
+#endif
+
+/* debug stuff */
+
+#if !defined(DEBUG) && !defined(NDEBUG)
+# define NDEBUG
+#endif
+#include <assert.h>
+
+/* dprintf macros */
+#ifdef DEBUG
+# define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
+#else
+# define dprintf(fmt,...)
+#endif
+
+#define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
+
+/* math */
+
+extern const uint32_t ff_inverse[256];
+
+#if defined(ARCH_X86)
+# define FASTDIV(a,b) \
+ ({\
+ int ret,dmy;\
+ asm volatile(\
+ "mull %3"\
+ :"=d"(ret),"=a"(dmy)\
+ :"1"(a),"g"(ff_inverse[b])\
+ );\
+ ret;\
+ })
+#elif defined(ARCH_ARMV4L)
+# define FASTDIV(a,b) \
+ ({\
+ int ret,dmy;\
+ asm volatile(\
+ "umull %1, %0, %2, %3"\
+ :"=&r"(ret),"=&r"(dmy)\
+ :"r"(a),"r"(ff_inverse[b])\
+ );\
+ ret;\
+ })
+#elif defined(CONFIG_FASTDIV)
+# define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
+#else
+# define FASTDIV(a,b) ((a)/(b))
+#endif
+
+extern FF_IMPORT_ATTR const uint8_t ff_sqrt_tab[128];
+
+static inline int ff_sqrt(int a)
+{
+ int ret=0;
+ int s;
+ int ret_sq=0;
+
+ if(a<128) return ff_sqrt_tab[a];
+
+ for(s=15; s>=0; s--){
+ int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
+ if(b<=a){
+ ret_sq=b;
+ ret+= 1<<s;
+ }
+ }
+ return ret;
+}
+
+#if defined(ARCH_X86)
+#define MASK_ABS(mask, level)\
+ asm volatile(\
+ "cdq \n\t"\
+ "xorl %1, %0 \n\t"\
+ "subl %1, %0 \n\t"\
+ : "+a" (level), "=&d" (mask)\
+ );
+#else
+#define MASK_ABS(mask, level)\
+ mask= level>>31;\
+ level= (level^mask)-mask;
+#endif
+
+#ifdef HAVE_CMOV
+#define COPY3_IF_LT(x,y,a,b,c,d)\
+asm volatile (\
+ "cmpl %0, %3 \n\t"\
+ "cmovl %3, %0 \n\t"\
+ "cmovl %4, %1 \n\t"\
+ "cmovl %5, %2 \n\t"\
+ : "+r" (x), "+r" (a), "+r" (c)\
+ : "r" (y), "r" (b), "r" (d)\
+);
+#else
+#define COPY3_IF_LT(x,y,a,b,c,d)\
+if((y)<(x)){\
+ (x)=(y);\
+ (a)=(b);\
+ (c)=(d);\
+}
+#endif
+
+/* avoid usage of various functions */
+#define malloc please_use_av_malloc
+#define free please_use_av_free
+#define realloc please_use_av_realloc
+#define time time_is_forbidden_due_to_security_issues
+#define rand rand_is_forbidden_due_to_state_trashing
+#define srand srand_is_forbidden_due_to_state_trashing
+#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
+#define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
+#if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
+#define printf please_use_av_log
+#define fprintf please_use_av_log
+#endif
+
+#define CHECKED_ALLOCZ(p, size)\
+{\
+ p= av_mallocz(size);\
+ if(p==NULL && (size)!=0){\
+ perror("malloc");\
+ goto fail;\
+ }\
+}
+
+#ifndef HAVE_LRINTF
+/* XXX: add ISOC specific test to avoid specific BSD testing. */
+/* better than nothing implementation. */
+/* btw, rintf() is existing on fbsd too -- alex */
+static always_inline long int lrintf(float x)
+{
+#ifdef __MINGW32__
+# ifdef ARCH_X86_32
+ int32_t i;
+ asm volatile(
+ "fistpl %0\n\t"
+ : "=m" (i) : "t" (x) : "st"
+ );
+ return i;
+# else
+ /* XXX: incorrect, but make it compile */
+ return (int)(x + (x < 0 ? -0.5 : 0.5));
+# endif /* ARCH_X86_32 */
+#else
+ return (int)(rint(x));
+#endif /* __MINGW32__ */
+}
+#endif /* HAVE_LRINTF */
+
+#endif /* INTERNAL_H */