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1
/**
2
 * @file common.h
3
 * common internal api header.
4
 */
5

    
6
#ifndef COMMON_H
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#define COMMON_H
8

    
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#if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
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#    define CONFIG_WIN32
11
#endif
12

    
13
#if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(EMULATE_INTTYPES)
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#    define EMULATE_INTTYPES
15
#endif
16

    
17
#ifndef M_PI
18
#define M_PI    3.14159265358979323846
19
#endif
20

    
21
#ifdef HAVE_AV_CONFIG_H
22
/* only include the following when compiling package */
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#    include "config.h"
24

    
25
#    include <stdlib.h>
26
#    include <stdio.h>
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#    include <string.h>
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#    include <ctype.h>
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#    include <limits.h>
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#    ifndef __BEOS__
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#        include <errno.h>
32
#    else
33
#        include "berrno.h"
34
#    endif
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#    include <math.h>
36

    
37
#    ifndef ENODATA
38
#        define ENODATA  61
39
#    endif
40

    
41
#include <stddef.h>
42
#ifndef offsetof
43
# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
44
#endif
45

    
46
#define AVOPTION_CODEC_BOOL(name, help, field) \
47
    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL }
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#define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \
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    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval }
50
#define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \
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    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval }
52
#define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \
53
    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval }
54
#define AVOPTION_CODEC_STRING(name, help, field, str, val) \
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    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str }
56
#define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \
57
    { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL }
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#define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr }
59
#define AVOPTION_END() AVOPTION_SUB(NULL)
60

    
61
#endif /* HAVE_AV_CONFIG_H */
62

    
63
/* Suppress restrict if it was not defined in config.h.  */
64
#ifndef restrict
65
#    define restrict
66
#endif
67

    
68
#ifndef always_inline
69
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
70
#    define always_inline __attribute__((always_inline)) inline
71
#else
72
#    define always_inline inline
73
#endif
74
#endif
75

    
76
#ifndef attribute_used
77
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
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#    define attribute_used __attribute__((used))
79
#else
80
#    define attribute_used
81
#endif
82
#endif
83

    
84
#ifndef attribute_unused
85
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
86
#    define attribute_unused __attribute__((unused))
87
#else
88
#    define attribute_unused
89
#endif
90
#endif
91

    
92
#ifndef EMULATE_INTTYPES
93
#   include <inttypes.h>
94
#else
95
    typedef signed char  int8_t;
96
    typedef signed short int16_t;
97
    typedef signed int   int32_t;
98
    typedef unsigned char  uint8_t;
99
    typedef unsigned short uint16_t;
100
    typedef unsigned int   uint32_t;
101

    
102
#   ifdef CONFIG_WIN32
103
        typedef signed __int64   int64_t;
104
        typedef unsigned __int64 uint64_t;
105
#   else /* other OS */
106
        typedef signed long long   int64_t;
107
        typedef unsigned long long uint64_t;
108
#   endif /* other OS */
109
#endif /* EMULATE_INTTYPES */
110

    
111
#ifndef PRId64
112
#define PRId64 "lld"
113
#endif
114

    
115
#ifndef PRIu64
116
#define PRIu64 "llu"
117
#endif
118

    
119
#ifndef PRIx64
120
#define PRIx64 "llx"
121
#endif
122

    
123
#ifndef PRId32
124
#define PRId32 "d"
125
#endif
126

    
127
#ifndef PRIdFAST16
128
#define PRIdFAST16 PRId32
129
#endif
130

    
131
#ifndef PRIdFAST32
132
#define PRIdFAST32 PRId32
133
#endif
134

    
135
#ifndef INT16_MIN
136
#define INT16_MIN       (-0x7fff-1)
137
#endif
138

    
139
#ifndef INT16_MAX
140
#define INT16_MAX       0x7fff
141
#endif
142

    
143
#ifndef INT32_MIN
144
#define INT32_MIN       (-0x7fffffff-1)
145
#endif
146

    
147
#ifndef INT32_MAX
148
#define INT32_MAX       0x7fffffff
149
#endif
150

    
151
#ifndef UINT32_MAX
152
#define UINT32_MAX      0xffffffff
153
#endif
154

    
155
#ifndef INT64_MIN
156
#define INT64_MIN       (-0x7fffffffffffffffLL-1)
157
#endif
158

    
159
#ifndef INT64_MAX
160
#define INT64_MAX int64_t_C(9223372036854775807)
161
#endif
162

    
163
#ifndef UINT64_MAX
164
#define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
165
#endif
166

    
167
#ifdef EMULATE_FAST_INT
168
typedef signed char int_fast8_t;
169
typedef signed int  int_fast16_t;
170
typedef signed int  int_fast32_t;
171
typedef unsigned char uint_fast8_t;
172
typedef unsigned int  uint_fast16_t;
173
typedef unsigned int  uint_fast32_t;
174
typedef uint64_t      uint_fast64_t;
175
#endif
176

    
177
#ifndef INT_BIT
178
#    if INT_MAX != 2147483647
179
#        define INT_BIT 64
180
#    else
181
#        define INT_BIT 32
182
#    endif
183
#endif
184

    
185
#if defined(CONFIG_OS2) || defined(CONFIG_SUNOS)
186
static inline float floorf(float f) {
187
    return floor(f);
188
}
189
#endif
190

    
191
#ifdef CONFIG_WIN32
192

    
193
/* windows */
194

    
195
#    if !defined(__MINGW32__) && !defined(__CYGWIN__)
196
#        define int64_t_C(c)     (c ## i64)
197
#        define uint64_t_C(c)    (c ## i64)
198

    
199
#    ifdef HAVE_AV_CONFIG_H
200
#            define inline __inline
201
#    endif
202

    
203
#    else
204
#        define int64_t_C(c)     (c ## LL)
205
#        define uint64_t_C(c)    (c ## ULL)
206
#    endif /* __MINGW32__ */
207

    
208
#    ifdef HAVE_AV_CONFIG_H
209
#        ifdef _DEBUG
210
#            define DEBUG
211
#        endif
212

    
213
#        define snprintf _snprintf
214
#        define vsnprintf _vsnprintf
215

    
216
#        ifdef CONFIG_WINCE
217
#            define perror(a)
218
#        endif
219

    
220
#    endif
221

    
222
/* CONFIG_WIN32 end */
223
#elif defined (CONFIG_OS2)
224
/* OS/2 EMX */
225

    
226
#ifndef int64_t_C
227
#define int64_t_C(c)     (c ## LL)
228
#define uint64_t_C(c)    (c ## ULL)
229
#endif
230

    
231
#ifdef HAVE_AV_CONFIG_H
232

    
233
#ifdef USE_FASTMEMCPY
234
#include "fastmemcpy.h"
235
#endif
236

    
237
#include <float.h>
238

    
239
#endif /* HAVE_AV_CONFIG_H */
240

    
241
/* CONFIG_OS2 end */
242
#else
243

    
244
/* unix */
245

    
246
#ifndef int64_t_C
247
#define int64_t_C(c)     (c ## LL)
248
#define uint64_t_C(c)    (c ## ULL)
249
#endif
250

    
251
#ifdef HAVE_AV_CONFIG_H
252

    
253
#        ifdef USE_FASTMEMCPY
254
#            include "fastmemcpy.h"
255
#        endif
256
#    endif /* HAVE_AV_CONFIG_H */
257

    
258
#endif /* !CONFIG_WIN32 && !CONFIG_OS2 */
259

    
260
#ifdef HAVE_AV_CONFIG_H
261

    
262
#if defined(__MINGW32__) && !defined(BUILD_AVUTIL) && defined(BUILD_SHARED_AV)
263
#  define FF_IMPORT_ATTR __declspec(dllimport)
264
#else
265
#  define FF_IMPORT_ATTR
266
#endif
267

    
268

    
269
#    include "bswap.h"
270

    
271
// Use rip-relative addressing if compiling PIC code on x86-64.
272
#    if defined(__MINGW32__) || defined(__CYGWIN__) || \
273
        defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
274
#        if defined(ARCH_X86_64) && defined(PIC)
275
#            define MANGLE(a) "_" #a"(%%rip)"
276
#        else
277
#            define MANGLE(a) "_" #a
278
#        endif
279
#    else
280
#        if defined(ARCH_X86_64) && defined(PIC)
281
#            define MANGLE(a) #a"(%%rip)"
282
#        elif defined(CONFIG_DARWIN)
283
#            define MANGLE(a) "_" #a
284
#        else
285
#            define MANGLE(a) #a
286
#        endif
287
#    endif
288

    
289
/* debug stuff */
290

    
291
#    ifndef DEBUG
292
#        define NDEBUG
293
#    endif
294
#    include <assert.h>
295

    
296
/* dprintf macros */
297
#    if defined(CONFIG_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
298

    
299
inline void dprintf(const char* fmt,...) {}
300

    
301
#    else
302

    
303
#        ifdef DEBUG
304
#            define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
305
#        else
306
#            define dprintf(fmt,...)
307
#        endif
308

    
309
#    endif /* !CONFIG_WIN32 */
310
#    ifdef CONFIG_WINCE
311
#            define abort()
312
#    endif
313

    
314
#    define av_abort()      do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
315

    
316
//rounded divison & shift
317
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
318
/* assume b>0 */
319
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
320
#define ABS(a) ((a) >= 0 ? (a) : (-(a)))
321

    
322
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
323
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
324

    
325
extern const uint32_t inverse[256];
326

    
327
#if defined(ARCH_X86) || defined(ARCH_X86_64)
328
#    define FASTDIV(a,b) \
329
    ({\
330
        int ret,dmy;\
331
        asm volatile(\
332
            "mull %3"\
333
            :"=d"(ret),"=a"(dmy)\
334
            :"1"(a),"g"(inverse[b])\
335
            );\
336
        ret;\
337
    })
338
#elif defined(CONFIG_FASTDIV)
339
#    define FASTDIV(a,b)   ((uint32_t)((((uint64_t)a)*inverse[b])>>32))
340
#else
341
#    define FASTDIV(a,b)   ((a)/(b))
342
#endif
343

    
344
/* define it to include statistics code (useful only for optimizing
345
   codec efficiency */
346
//#define STATS
347

    
348
#ifdef STATS
349

    
350
enum {
351
    ST_UNKNOWN,
352
    ST_DC,
353
    ST_INTRA_AC,
354
    ST_INTER_AC,
355
    ST_INTRA_MB,
356
    ST_INTER_MB,
357
    ST_MV,
358
    ST_NB,
359
};
360

    
361
extern int st_current_index;
362
extern unsigned int st_bit_counts[ST_NB];
363
extern unsigned int st_out_bit_counts[ST_NB];
364

    
365
void print_stats(void);
366
#endif
367

    
368
/* misc math functions */
369
extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
370

    
371
static inline int av_log2(unsigned int v)
372
{
373
    int n;
374

    
375
    n = 0;
376
    if (v & 0xffff0000) {
377
        v >>= 16;
378
        n += 16;
379
    }
380
    if (v & 0xff00) {
381
        v >>= 8;
382
        n += 8;
383
    }
384
    n += ff_log2_tab[v];
385

    
386
    return n;
387
}
388

    
389
static inline int av_log2_16bit(unsigned int v)
390
{
391
    int n;
392

    
393
    n = 0;
394
    if (v & 0xff00) {
395
        v >>= 8;
396
        n += 8;
397
    }
398
    n += ff_log2_tab[v];
399

    
400
    return n;
401
}
402

    
403
/* median of 3 */
404
static inline int mid_pred(int a, int b, int c)
405
{
406
#if 0
407
    int t= (a-b)&((a-b)>>31);
408
    a-=t;
409
    b+=t;
410
    b-= (b-c)&((b-c)>>31);
411
    b+= (a-b)&((a-b)>>31);
412

413
    return b;
414
#else
415
    if(a>b){
416
        if(c>b){
417
            if(c>a) b=a;
418
            else    b=c;
419
        }
420
    }else{
421
        if(b>c){
422
            if(c>a) b=c;
423
            else    b=a;
424
        }
425
    }
426
    return b;
427
#endif
428
}
429

    
430
static inline int clip(int a, int amin, int amax)
431
{
432
    if (a < amin)
433
        return amin;
434
    else if (a > amax)
435
        return amax;
436
    else
437
        return a;
438
}
439

    
440
static inline uint8_t clip_uint8(int a)
441
{
442
    if (a&(~255)) return (-a)>>31;
443
    else          return a;
444
}
445

    
446
/* math */
447
extern FF_IMPORT_ATTR const uint8_t ff_sqrt_tab[128];
448

    
449
int64_t ff_gcd(int64_t a, int64_t b);
450

    
451
static inline int ff_sqrt(int a)
452
{
453
    int ret=0;
454
    int s;
455
    int ret_sq=0;
456

    
457
    if(a<128) return ff_sqrt_tab[a];
458

    
459
    for(s=15; s>=0; s--){
460
        int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
461
        if(b<=a){
462
            ret_sq=b;
463
            ret+= 1<<s;
464
        }
465
    }
466
    return ret;
467
}
468

    
469
/**
470
 * converts fourcc string to int
471
 */
472
static inline int ff_get_fourcc(const char *s){
473
    assert( strlen(s)==4 );
474

    
475
    return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
476
}
477

    
478
#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
479
#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
480

    
481

    
482
#if defined(ARCH_X86) || defined(ARCH_X86_64)
483
#define MASK_ABS(mask, level)\
484
            asm volatile(\
485
                "cdq                    \n\t"\
486
                "xorl %1, %0            \n\t"\
487
                "subl %1, %0            \n\t"\
488
                : "+a" (level), "=&d" (mask)\
489
            );
490
#else
491
#define MASK_ABS(mask, level)\
492
            mask= level>>31;\
493
            level= (level^mask)-mask;
494
#endif
495

    
496

    
497
#if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
498
#define COPY3_IF_LT(x,y,a,b,c,d)\
499
asm volatile (\
500
    "cmpl %0, %3        \n\t"\
501
    "cmovl %3, %0       \n\t"\
502
    "cmovl %4, %1       \n\t"\
503
    "cmovl %5, %2       \n\t"\
504
    : "+r" (x), "+r" (a), "+r" (c)\
505
    : "r" (y), "r" (b), "r" (d)\
506
);
507
#else
508
#define COPY3_IF_LT(x,y,a,b,c,d)\
509
if((y)<(x)){\
510
     (x)=(y);\
511
     (a)=(b);\
512
     (c)=(d);\
513
}
514
#endif
515

    
516
#if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC)
517
#if defined(ARCH_X86_64)
518
static inline uint64_t read_time(void)
519
{
520
        uint64_t a, d;
521
        asm volatile(   "rdtsc\n\t"
522
                : "=a" (a), "=d" (d)
523
        );
524
        return (d << 32) | (a & 0xffffffff);
525
}
526
#elif defined(ARCH_X86)
527
static inline long long read_time(void)
528
{
529
        long long l;
530
        asm volatile(   "rdtsc\n\t"
531
                : "=A" (l)
532
        );
533
        return l;
534
}
535
#else //FIXME check ppc64
536
static inline uint64_t read_time(void)
537
{
538
    uint32_t tbu, tbl, temp;
539

    
540
     /* from section 2.2.1 of the 32-bit PowerPC PEM */
541
     __asm__ __volatile__(
542
         "1:\n"
543
         "mftbu  %2\n"
544
         "mftb   %0\n"
545
         "mftbu  %1\n"
546
         "cmpw   %2,%1\n"
547
         "bne    1b\n"
548
     : "=r"(tbl), "=r"(tbu), "=r"(temp)
549
     :
550
     : "cc");
551

    
552
     return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
553
}
554
#endif
555

    
556
#define START_TIMER \
557
uint64_t tend;\
558
uint64_t tstart= read_time();\
559

    
560
#define STOP_TIMER(id) \
561
tend= read_time();\
562
{\
563
  static uint64_t tsum=0;\
564
  static int tcount=0;\
565
  static int tskip_count=0;\
566
  if(tcount<2 || tend - tstart < 8*tsum/tcount){\
567
      tsum+= tend - tstart;\
568
      tcount++;\
569
  }else\
570
      tskip_count++;\
571
  if(256*256*256*64%(tcount+tskip_count)==0){\
572
      av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
573
  }\
574
}
575
#else
576
#define START_TIMER
577
#define STOP_TIMER(id) {}
578
#endif
579

    
580
/* avoid usage of various functions */
581
#define malloc please_use_av_malloc
582
#define free please_use_av_free
583
#define realloc please_use_av_realloc
584
#define time time_is_forbidden_due_to_security_issues
585
#define rand rand_is_forbidden_due_to_state_trashing
586
#define srand srand_is_forbidden_due_to_state_trashing
587
#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
588
#define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
589
#if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
590
#define printf please_use_av_log
591
#define fprintf please_use_av_log
592
#endif
593

    
594
#define CHECKED_ALLOCZ(p, size)\
595
{\
596
    p= av_mallocz(size);\
597
    if(p==NULL && (size)!=0){\
598
        perror("malloc");\
599
        goto fail;\
600
    }\
601
}
602

    
603
#ifndef HAVE_LRINTF
604
/* XXX: add ISOC specific test to avoid specific BSD testing. */
605
/* better than nothing implementation. */
606
/* btw, rintf() is existing on fbsd too -- alex */
607
static always_inline long int lrintf(float x)
608
{
609
#ifdef CONFIG_WIN32
610
#  ifdef ARCH_X86
611
    int32_t i;
612
    asm volatile(
613
        "fistpl %0\n\t"
614
        : "=m" (i) : "t" (x) : "st"
615
    );
616
    return i;
617
#  else
618
    /* XXX: incorrect, but make it compile */
619
    return (int)(x + (x < 0 ? -0.5 : 0.5));
620
#  endif /* ARCH_X86 */
621
#else
622
    return (int)(rint(x));
623
#endif /* CONFIG_WIN32 */
624
}
625
#else
626
#ifndef _ISOC9X_SOURCE
627
#define _ISOC9X_SOURCE
628
#endif
629
#include <math.h>
630
#endif /* HAVE_LRINTF */
631

    
632
#endif /* HAVE_AV_CONFIG_H */
633

    
634
#endif /* COMMON_H */