+/*
+ * 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 common.h
* common internal and external api header.
#ifndef COMMON_H
#define COMMON_H
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
+#include <inttypes.h>
#ifdef HAVE_AV_CONFIG_H
/* only include the following when compiling package */
# include <string.h>
# include <ctype.h>
# include <limits.h>
-# ifndef __BEOS__
-# include <errno.h>
-# else
-# include "berrno.h"
-# endif
+# include <errno.h>
# include <math.h>
#endif /* HAVE_AV_CONFIG_H */
-/* Suppress restrict if it was not defined in config.h. */
-#ifndef restrict
-# define restrict
-#endif
-
-#ifndef always_inline
+#ifndef av_always_inline
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
-# define always_inline __attribute__((always_inline)) inline
+# define av_always_inline __attribute__((always_inline)) inline
+# define av_noinline __attribute__((noinline))
#else
-# define always_inline inline
+# define av_always_inline inline
+# define av_noinline
#endif
#endif
-#ifndef attribute_used
-#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
-# define attribute_used __attribute__((used))
-#else
-# define attribute_used
-#endif
-#endif
+#ifdef HAVE_AV_CONFIG_H
+# include "internal.h"
+#endif /* HAVE_AV_CONFIG_H */
-#ifndef attribute_unused
+#ifndef attribute_deprecated
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
-# define attribute_unused __attribute__((unused))
+# define attribute_deprecated __attribute__((deprecated))
#else
-# define attribute_unused
+# define attribute_deprecated
#endif
#endif
-#ifndef EMULATE_INTTYPES
-# include <inttypes.h>
+#ifndef av_unused
+#if defined(__GNUC__)
+# define av_unused __attribute__((unused))
#else
- typedef signed char int8_t;
- typedef signed short int16_t;
- typedef signed int int32_t;
- typedef unsigned char uint8_t;
- typedef unsigned short uint16_t;
- typedef unsigned int uint32_t;
- typedef signed long long int64_t;
- typedef unsigned long long uint64_t;
-#endif /* EMULATE_INTTYPES */
-
-#ifndef PRId64
-#define PRId64 "lld"
-#endif
-
-#ifndef PRIu64
-#define PRIu64 "llu"
-#endif
-
-#ifndef PRIx64
-#define PRIx64 "llx"
-#endif
-
-#ifndef PRId32
-#define PRId32 "d"
-#endif
-
-#ifndef PRIdFAST16
-#define PRIdFAST16 PRId32
-#endif
-
-#ifndef PRIdFAST32
-#define PRIdFAST32 PRId32
-#endif
-
-#ifndef INT16_MIN
-#define INT16_MIN (-0x7fff-1)
-#endif
-
-#ifndef INT16_MAX
-#define INT16_MAX 0x7fff
-#endif
-
-#ifndef INT32_MIN
-#define INT32_MIN (-0x7fffffff-1)
-#endif
-
-#ifndef INT32_MAX
-#define INT32_MAX 0x7fffffff
-#endif
-
-#ifndef UINT32_MAX
-#define UINT32_MAX 0xffffffff
+# define av_unused
#endif
-
-#ifndef INT64_MIN
-#define INT64_MIN (-0x7fffffffffffffffLL-1)
-#endif
-
-#ifndef INT64_MAX
-#define INT64_MAX int64_t_C(9223372036854775807)
-#endif
-
-#ifndef UINT64_MAX
-#define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
-#endif
-
-#ifdef EMULATE_FAST_INT
-typedef signed char int_fast8_t;
-typedef signed int int_fast16_t;
-typedef signed int int_fast32_t;
-typedef unsigned char uint_fast8_t;
-typedef unsigned int uint_fast16_t;
-typedef unsigned int uint_fast32_t;
-typedef uint64_t uint_fast64_t;
-#endif
-
-#ifndef INT_BIT
-# if INT_MAX != 2147483647
-# define INT_BIT 64
-# else
-# define INT_BIT 32
-# endif
-#endif
-
-#ifndef int64_t_C
-#define int64_t_C(c) (c ## LL)
-#define uint64_t_C(c) (c ## ULL)
-#endif
-
-#if defined(__MINGW32__) && !defined(BUILD_AVUTIL) && defined(BUILD_SHARED_AV)
-# define FF_IMPORT_ATTR __declspec(dllimport)
-#else
-# define FF_IMPORT_ATTR
#endif
-
-# include "bswap.h"
-
-#ifdef HAVE_AV_CONFIG_H
-/* only include the following when compiling package */
-# include "internal.h"
-#endif
+#include "mem.h"
//rounded divison & shift
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
/* assume b>0 */
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
-#define ABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define FFSIGN(a) ((a) > 0 ? 1 : -1)
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+
/* misc math functions */
-extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
+extern const uint8_t ff_log2_tab[256];
static inline int av_log2(unsigned int v)
{
/* median of 3 */
static inline int mid_pred(int a, int b, int c)
{
-#if 0
+#ifdef HAVE_CMOV
+ int i=b;
+ asm volatile(
+ "cmp %2, %1 \n\t"
+ "cmovg %1, %0 \n\t"
+ "cmovg %2, %1 \n\t"
+ "cmp %3, %1 \n\t"
+ "cmovl %3, %1 \n\t"
+ "cmp %1, %0 \n\t"
+ "cmovg %1, %0 \n\t"
+ :"+&r"(i), "+&r"(a)
+ :"r"(b), "r"(c)
+ );
+ return i;
+#elif 0
int t= (a-b)&((a-b)>>31);
a-=t;
b+=t;
* @param a value to clip
* @param amin minimum value of the clip range
* @param amax maximum value of the clip range
- * @return cliped value
+ * @return clipped value
*/
-static inline int clip(int a, int amin, int amax)
+static inline int av_clip(int a, int amin, int amax)
{
if (a < amin) return amin;
else if (a > amax) return amax;
/**
* clip a signed integer value into the 0-255 range
* @param a value to clip
- * @return cliped value
+ * @return clipped value
*/
-static inline uint8_t clip_uint8(int a)
+static inline uint8_t av_clip_uint8(int a)
{
if (a&(~255)) return (-a)>>31;
else return a;
#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
-
+/*!
+ * \def GET_UTF8(val, GET_BYTE, ERROR)
+ * converts a UTF-8 character (up to 4 bytes long) to its 32-bit UCS-4 encoded form
+ * \param val is the output and should be of type uint32_t. It holds the converted
+ * UCS-4 character and should be a left value.
+ * \param GET_BYTE gets UTF-8 encoded bytes from any proper source. It can be
+ * a function or a statement whose return value or evaluated value is of type
+ * uint8_t. It will be executed up to 4 times for values in the valid UTF-8 range,
+ * and up to 7 times in the general case.
+ * \param ERROR action that should be taken when an invalid UTF-8 byte is returned
+ * from GET_BYTE. It should be a statement that jumps out of the macro,
+ * like exit(), goto, return, break, or continue.
+ */
#define GET_UTF8(val, GET_BYTE, ERROR)\
val= GET_BYTE;\
{\
}\
}
-#if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC)
+/*!
+ * \def PUT_UTF8(val, tmp, PUT_BYTE)
+ * converts a 32-bit unicode character to its UTF-8 encoded form (up to 4 bytes long).
+ * \param val is an input only argument and should be of type uint32_t. It holds
+ * a ucs4 encoded unicode character that is to be converted to UTF-8. If
+ * val is given as a function it's executed only once.
+ * \param tmp is a temporary variable and should be of type uint8_t. It
+ * represents an intermediate value during conversion that is to be
+ * outputted by PUT_BYTE.
+ * \param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
+ * It could be a function or a statement, and uses tmp as the input byte.
+ * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
+ * executed up to 4 times for values in the valid UTF-8 range and up to
+ * 7 times in the general case, depending on the length of the converted
+ * unicode character.
+ */
+#define PUT_UTF8(val, tmp, PUT_BYTE)\
+ {\
+ int bytes, shift;\
+ uint32_t in = val;\
+ if (in < 0x80) {\
+ tmp = in;\
+ PUT_BYTE\
+ } else {\
+ bytes = (av_log2(in) + 4) / 5;\
+ shift = (bytes - 1) * 6;\
+ tmp = (256 - (256 >> bytes)) | (in >> shift);\
+ PUT_BYTE\
+ while (shift >= 6) {\
+ shift -= 6;\
+ tmp = 0x80 | ((in >> shift) & 0x3f);\
+ PUT_BYTE\
+ }\
+ }\
+ }
+
+#if defined(ARCH_X86) || defined(ARCH_POWERPC) || defined(ARCH_BFIN)
#if defined(ARCH_X86_64)
static inline uint64_t read_time(void)
{
);
return (d << 32) | (a & 0xffffffff);
}
-#elif defined(ARCH_X86)
+#elif defined(ARCH_X86_32)
static inline long long read_time(void)
{
long long l;
);
return l;
}
+#elif ARCH_BFIN
+static inline uint64_t read_time(void)
+{
+ union {
+ struct {
+ unsigned lo;
+ unsigned hi;
+ } p;
+ unsigned long long c;
+ } t;
+ asm volatile ("%0=cycles; %1=cycles2;" : "=d" (t.p.lo), "=d" (t.p.hi));
+ return t.c;
+}
#else //FIXME check ppc64
static inline uint64_t read_time(void)
{
static uint64_t tsum=0;\
static int tcount=0;\
static int tskip_count=0;\
- if(tcount<2 || tend - tstart < 8*tsum/tcount){\
+ if(tcount<2 || tend - tstart < FFMAX(8*tsum/tcount, 2000)){\
tsum+= tend - tstart;\
tcount++;\
}else\
tskip_count++;\
- if(256*256*256*64%(tcount+tskip_count)==0){\
+ if(((tcount+tskip_count)&(tcount+tskip_count-1))==0){\
av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
}\
}
#define STOP_TIMER(id) {}
#endif
-/* memory */
-void *av_malloc(unsigned int size);
-void *av_realloc(void *ptr, unsigned int size);
-void av_free(void *ptr);
-
#endif /* COMMON_H */
projects / ffmpeg / blobdiff