4 #define FFMPEG_VERSION_INT 0x000406
5 #define FFMPEG_VERSION "0.4.6"
7 #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
11 //#define ALT_BITSTREAM_WRITER
12 //#define ALIGNED_BITSTREAM_WRITER
14 #define ALT_BITSTREAM_READER
15 //#define LIBMPEG2_BITSTREAM_READER
16 //#define A32_BITSTREAM_READER
18 #ifdef HAVE_AV_CONFIG_H
19 /* only include the following when compiling package */
36 #endif /* HAVE_AV_CONFIG_H */
38 /* Suppress restrict if it was not defined in config.h. */
43 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
44 # define always_inline __attribute__((always_inline)) inline
46 # define always_inline inline
53 typedef unsigned short UINT16;
54 typedef signed short INT16;
55 typedef unsigned char UINT8;
56 typedef unsigned int UINT32;
57 typedef unsigned __int64 UINT64;
58 typedef signed char INT8;
59 typedef signed int INT32;
60 typedef signed __int64 INT64;
62 typedef UINT8 uint8_t;
64 typedef UINT16 uint16_t;
65 typedef INT16 int16_t;
66 typedef UINT32 uint32_t;
67 typedef INT32 int32_t;
68 typedef UINT64 uint64_t;
69 typedef INT64 int64_t;
72 # define INT64_C(c) (c ## i64)
73 # define UINT64_C(c) (c ## i64)
75 # define inline __inline
78 # define INT64_C(c) (c ## LL)
79 # define UINT64_C(c) (c ## ULL)
80 # endif /* __MINGW32__ */
82 # define M_PI 3.14159265358979323846
83 # define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
89 # define snprintf _snprintf
91 #else /* CONFIG_WIN32 */
95 # include <inttypes.h>
97 # ifndef __WINE_WINDEF16_H
98 /* workaround for typedef conflict in MPlayer (wine typedefs) */
99 typedef unsigned short UINT16;
100 typedef signed short INT16;
103 typedef unsigned char UINT8;
104 typedef unsigned int UINT32;
105 typedef unsigned long long UINT64;
106 typedef signed char INT8;
107 typedef signed int INT32;
108 typedef signed long long INT64;
110 # ifdef HAVE_AV_CONFIG_H
113 # define INT64_C(c) (c ## LL)
114 # define UINT64_C(c) (c ## ULL)
117 # ifdef USE_FASTMEMCPY
118 # include "fastmemcpy.h"
121 # endif /* HAVE_AV_CONFIG_H */
123 #endif /* !CONFIG_WIN32 */
125 #ifdef HAVE_AV_CONFIG_H
129 # if defined(__MINGW32__) || defined(__CYGWIN__) || \
130 defined(__OS2__) || defined (__OpenBSD__)
131 # define MANGLE(a) "_" #a
133 # define MANGLE(a) #a
144 # if defined(CONFIG_WIN32) && !defined(__MINGW32__)
146 inline void dprintf(const char* fmt,...) {}
151 # define dprintf(fmt,args...) printf(fmt, ## args)
153 # define dprintf(fmt,args...)
156 # endif /* !CONFIG_WIN32 */
158 # define av_abort() do { fprintf(stderr, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
160 //rounded divison & shift
161 #define RSHIFT(a,b) ((a) > 0 ? ((a) + (1<<((b)-1)))>>(b) : ((a) + (1<<((b)-1))-1)>>(b))
163 #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
164 #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
167 # define MAX(a,b) ((a) > (b) ? (a) : (b))
171 # define MIN(a,b) ((a) > (b) ? (b) : (a))
175 // avoid +32 for shift optimization (gcc should do that ...)
176 static inline int32_t NEG_SSR32( int32_t a, int8_t s){
177 asm ("sarl %1, %0\n\t"
179 : "ic" ((uint8_t)(-s))
183 static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
184 asm ("shrl %1, %0\n\t"
186 : "ic" ((uint8_t)(-s))
191 # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s)))
192 # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
197 struct PutBitContext;
199 typedef void (*WriteDataFunc)(void *, UINT8 *, int);
201 typedef struct PutBitContext {
202 #ifdef ALT_BITSTREAM_WRITER
203 UINT8 *buf, *buf_end;
208 UINT8 *buf, *buf_ptr, *buf_end;
210 INT64 data_out_size; /* in bytes */
213 void init_put_bits(PutBitContext *s,
214 UINT8 *buffer, int buffer_size,
216 void (*write_data)(void *, UINT8 *, int));
218 INT64 get_bit_count(PutBitContext *s); /* XXX: change function name */
219 void align_put_bits(PutBitContext *s);
220 void flush_put_bits(PutBitContext *s);
221 void put_string(PutBitContext * pbc, char *s);
223 /* jpeg specific put_bits */
224 void jflush_put_bits(PutBitContext *s);
228 typedef struct GetBitContext {
229 UINT8 *buffer, *buffer_end;
230 #ifdef ALT_BITSTREAM_READER
232 #elif defined LIBMPEG2_BITSTREAM_READER
236 #elif defined A32_BITSTREAM_READER
245 static inline int get_bits_count(GetBitContext *s);
247 #define VLC_TYPE INT16
251 VLC_TYPE (*table)[2]; // code, bits
252 int table_size, table_allocated;
255 typedef struct RL_VLC_ELEM {
261 /* used to avoid missaligned exceptions on some archs (alpha, ...) */
263 # define unaligned32(a) (*(UINT32*)(a))
266 static inline uint32_t unaligned32(const void *v) {
269 } __attribute__((packed));
271 return ((const struct Unaligned *) v)->i;
273 # elif defined(__DECC)
274 static inline uint32_t unaligned32(const void *v) {
275 return *(const __unaligned uint32_t *) v;
278 static inline uint32_t unaligned32(const void *v) {
279 return *(const uint32_t *) v;
284 #ifndef ALT_BITSTREAM_WRITER
285 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
287 unsigned int bit_buf;
291 st_out_bit_counts[st_current_index] += n;
293 // printf("put_bits=%d %x\n", n, value);
294 assert(n == 32 || value < (1U << n));
296 bit_buf = s->bit_buf;
297 bit_left = s->bit_left;
299 // printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
302 bit_buf = (bit_buf<<n) | value;
306 bit_buf |= value >> (n - bit_left);
307 *(UINT32 *)s->buf_ptr = be2me_32(bit_buf);
308 //printf("bitbuf = %08x\n", bit_buf);
314 s->bit_buf = bit_buf;
315 s->bit_left = bit_left;
320 #ifdef ALT_BITSTREAM_WRITER
321 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
323 # ifdef ALIGNED_BITSTREAM_WRITER
326 "movl %0, %%ecx \n\t"
327 "xorl %%eax, %%eax \n\t"
328 "shrdl %%cl, %1, %%eax \n\t"
330 "movl %0, %%ecx \n\t"
331 "shrl $3, %%ecx \n\t"
332 "andl $0xFFFFFFFC, %%ecx \n\t"
334 "orl %1, (%2, %%ecx) \n\t"
337 "movl %%eax, 4(%2, %%ecx) \n\t"
338 : "=&r" (s->index), "=&r" (value)
339 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n))
344 uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5);
348 ptr[0] |= be2me_32(value>>(index&31));
349 ptr[1] = be2me_32(value<<(32-(index&31)));
350 //if(n>24) printf("%d %d\n", n, value);
354 # else //ALIGNED_BITSTREAM_WRITER
357 "movl $7, %%ecx \n\t"
358 "andl %0, %%ecx \n\t"
359 "addl %3, %%ecx \n\t"
363 "movl %0, %%ecx \n\t"
364 "shrl $3, %%ecx \n\t"
365 "orl %1, (%%ecx, %2) \n\t"
367 "movl $0, 4(%%ecx, %2) \n\t"
368 : "=&r" (s->index), "=&r" (value)
369 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value)
374 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
376 ptr[0] |= be2me_32(value<<(32-n-(index&7) ));
378 //if(n>24) printf("%d %d\n", n, value);
382 # endif //!ALIGNED_BITSTREAM_WRITER
386 #ifndef ALT_BITSTREAM_WRITER
387 /* for jpeg : escape 0xff with 0x00 after it */
388 static inline void jput_bits(PutBitContext *s, int n, unsigned int value)
390 unsigned int bit_buf, b;
393 assert(n == 32 || value < (1U << n));
395 bit_buf = s->bit_buf;
396 bit_left = s->bit_left;
398 //printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
401 bit_buf = (bit_buf<<n) | value;
405 bit_buf |= value >> (n - bit_left);
419 s->bit_buf = bit_buf;
420 s->bit_left = bit_left;
425 #ifdef ALT_BITSTREAM_WRITER
426 static inline void jput_bits(PutBitContext *s, int n, int value)
429 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
431 //if(n>24) printf("%d %d\n", n, value);
433 v |= be2me_32(value<<(32-n-(index&7) ));
434 if(((v+0x01010101)^0xFFFFFFFF)&v&0x80808080)
436 /* handle idiotic (m)jpeg escapes */
437 uint8_t *bPtr= (uint8_t*)ptr;
438 int numChecked= ((index+n)>>3) - (index>>3);
443 if((v&0xFF000000)==0xFF000000 && numChecked>0){
447 *(bPtr++)= (v>>16)&0xFF;
448 if((v&0x00FF0000)==0x00FF0000 && numChecked>1){
452 *(bPtr++)= (v>>8)&0xFF;
453 if((v&0x0000FF00)==0x0000FF00 && numChecked>2){
458 if((v&0x000000FF)==0x000000FF && numChecked>3){
462 *((uint32_t*)bPtr)= 0;
475 static inline uint8_t* pbBufPtr(PutBitContext *s)
477 #ifdef ALT_BITSTREAM_WRITER
478 return s->buf + (s->index>>3);
484 /* Bitstream reader API docs:
486 abritary name which is used as prefix for the internal variables
491 OPEN_READER(name, gb)
492 loads gb into local variables
494 CLOSE_READER(name, gb)
495 stores local vars in gb
497 UPDATE_CACHE(name, gb)
498 refills the internal cache from the bitstream
499 after this call at least MIN_CACHE_BITS will be available,
502 will output the contents of the internal cache, next bit is MSB of 32 or 64 bit (FIXME 64bit)
504 SHOW_UBITS(name, gb, num)
505 will return the nest num bits
507 SHOW_SBITS(name, gb, num)
508 will return the nest num bits and do sign extension
510 SKIP_BITS(name, gb, num)
511 will skip over the next num bits
512 note, this is equinvalent to SKIP_CACHE; SKIP_COUNTER
514 SKIP_CACHE(name, gb, num)
515 will remove the next num bits from the cache (note SKIP_COUNTER MUST be called before UPDATE_CACHE / CLOSE_READER)
517 SKIP_COUNTER(name, gb, num)
518 will increment the internal bit counter (see SKIP_CACHE & SKIP_BITS)
520 LAST_SKIP_CACHE(name, gb, num)
521 will remove the next num bits from the cache if it is needed for UPDATE_CACHE otherwise it will do nothing
523 LAST_SKIP_BITS(name, gb, num)
524 is equinvalent to SKIP_LAST_CACHE; SKIP_COUNTER
526 for examples see get_bits, show_bits, skip_bits, get_vlc
529 #ifdef ALT_BITSTREAM_READER
530 # define MIN_CACHE_BITS 25
532 # define OPEN_READER(name, gb)\
533 int name##_index= (gb)->index;\
534 int name##_cache= 0;\
536 # define CLOSE_READER(name, gb)\
537 (gb)->index= name##_index;\
539 # define UPDATE_CACHE(name, gb)\
540 name##_cache= be2me_32( unaligned32( ((uint8_t *)(gb)->buffer)+(name##_index>>3) ) ) << (name##_index&0x07);\
542 # define SKIP_CACHE(name, gb, num)\
543 name##_cache <<= (num);\
546 # define SKIP_COUNTER(name, gb, num)\
547 name##_index += (num);\
549 # define SKIP_BITS(name, gb, num)\
551 SKIP_CACHE(name, gb, num)\
552 SKIP_COUNTER(name, gb, num)\
555 # define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
556 # define LAST_SKIP_CACHE(name, gb, num) ;
558 # define SHOW_UBITS(name, gb, num)\
559 NEG_USR32(name##_cache, num)
561 # define SHOW_SBITS(name, gb, num)\
562 NEG_SSR32(name##_cache, num)
564 # define GET_CACHE(name, gb)\
565 ((uint32_t)name##_cache)
567 static inline int get_bits_count(GetBitContext *s){
570 #elif defined LIBMPEG2_BITSTREAM_READER
571 //libmpeg2 like reader
573 # define MIN_CACHE_BITS 16
575 # define OPEN_READER(name, gb)\
576 int name##_bit_count=(gb)->bit_count;\
577 int name##_cache= (gb)->cache;\
578 uint8_t * name##_buffer_ptr=(gb)->buffer_ptr;\
580 # define CLOSE_READER(name, gb)\
581 (gb)->bit_count= name##_bit_count;\
582 (gb)->cache= name##_cache;\
583 (gb)->buffer_ptr= name##_buffer_ptr;\
585 # define UPDATE_CACHE(name, gb)\
586 if(name##_bit_count > 0){\
587 name##_cache+= ((name##_buffer_ptr[0]<<8) + name##_buffer_ptr[1]) << name##_bit_count;\
588 name##_buffer_ptr+=2;\
589 name##_bit_count-= 16;\
592 # define SKIP_CACHE(name, gb, num)\
593 name##_cache <<= (num);\
595 # define SKIP_COUNTER(name, gb, num)\
596 name##_bit_count += (num);\
598 # define SKIP_BITS(name, gb, num)\
600 SKIP_CACHE(name, gb, num)\
601 SKIP_COUNTER(name, gb, num)\
604 # define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
605 # define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
607 # define SHOW_UBITS(name, gb, num)\
608 NEG_USR32(name##_cache, num)
610 # define SHOW_SBITS(name, gb, num)\
611 NEG_SSR32(name##_cache, num)
613 # define GET_CACHE(name, gb)\
614 ((uint32_t)name##_cache)
616 static inline int get_bits_count(GetBitContext *s){
617 return (s->buffer_ptr - s->buffer)*8 - 16 + s->bit_count;
620 #elif defined A32_BITSTREAM_READER
622 # define MIN_CACHE_BITS 32
624 # define OPEN_READER(name, gb)\
625 int name##_bit_count=(gb)->bit_count;\
626 uint32_t name##_cache0= (gb)->cache0;\
627 uint32_t name##_cache1= (gb)->cache1;\
628 uint32_t * name##_buffer_ptr=(gb)->buffer_ptr;\
630 # define CLOSE_READER(name, gb)\
631 (gb)->bit_count= name##_bit_count;\
632 (gb)->cache0= name##_cache0;\
633 (gb)->cache1= name##_cache1;\
634 (gb)->buffer_ptr= name##_buffer_ptr;\
636 # define UPDATE_CACHE(name, gb)\
637 if(name##_bit_count > 0){\
638 const uint32_t next= be2me_32( *name##_buffer_ptr );\
639 name##_cache0 |= NEG_USR32(next,name##_bit_count);\
640 name##_cache1 |= next<<name##_bit_count;\
641 name##_buffer_ptr++;\
642 name##_bit_count-= 32;\
646 # define SKIP_CACHE(name, gb, num)\
648 "shldl %2, %1, %0 \n\t"\
650 : "+r" (name##_cache0), "+r" (name##_cache1)\
651 : "Ic" ((uint8_t)num)\
654 # define SKIP_CACHE(name, gb, num)\
655 name##_cache0 <<= (num);\
656 name##_cache0 |= NEG_USR32(name##_cache1,num);\
657 name##_cache1 <<= (num);
660 # define SKIP_COUNTER(name, gb, num)\
661 name##_bit_count += (num);\
663 # define SKIP_BITS(name, gb, num)\
665 SKIP_CACHE(name, gb, num)\
666 SKIP_COUNTER(name, gb, num)\
669 # define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
670 # define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
672 # define SHOW_UBITS(name, gb, num)\
673 NEG_USR32(name##_cache0, num)
675 # define SHOW_SBITS(name, gb, num)\
676 NEG_SSR32(name##_cache0, num)
678 # define GET_CACHE(name, gb)\
681 static inline int get_bits_count(GetBitContext *s){
682 return ((uint8_t*)s->buffer_ptr - s->buffer)*8 - 32 + s->bit_count;
687 static inline unsigned int get_bits(GetBitContext *s, int n){
691 tmp= SHOW_UBITS(re, s, n);
692 LAST_SKIP_BITS(re, s, n)
697 static inline unsigned int show_bits(GetBitContext *s, int n){
701 tmp= SHOW_UBITS(re, s, n);
702 // CLOSE_READER(re, s)
706 static inline void skip_bits(GetBitContext *s, int n){
707 //Note gcc seems to optimize this to s->index+=n for the ALT_READER :))
710 LAST_SKIP_BITS(re, s, n)
714 static inline unsigned int get_bits1(GetBitContext *s){
715 #ifdef ALT_BITSTREAM_READER
717 uint8_t result= s->buffer[ index>>3 ];
718 result<<= (index&0x07);
725 return get_bits(s, 1);
729 static inline unsigned int show_bits1(GetBitContext *s){
730 return show_bits(s, 1);
733 static inline void skip_bits1(GetBitContext *s){
737 void init_get_bits(GetBitContext *s,
738 UINT8 *buffer, int buffer_size);
740 int check_marker(GetBitContext *s, char *msg);
741 void align_get_bits(GetBitContext *s);
742 int init_vlc(VLC *vlc, int nb_bits, int nb_codes,
743 const void *bits, int bits_wrap, int bits_size,
744 const void *codes, int codes_wrap, int codes_size);
745 void free_vlc(VLC *vlc);
747 #define GET_VLC(code, name, gb, table, bits, max_depth)\
749 int n, index, nb_bits;\
751 index= SHOW_UBITS(name, gb, bits);\
752 code = table[index][0];\
753 n = table[index][1];\
755 if(max_depth > 1 && n < 0){\
756 LAST_SKIP_BITS(name, gb, bits)\
757 UPDATE_CACHE(name, gb)\
761 index= SHOW_UBITS(name, gb, nb_bits) + code;\
762 code = table[index][0];\
763 n = table[index][1];\
764 if(max_depth > 2 && n < 0){\
765 LAST_SKIP_BITS(name, gb, nb_bits)\
766 UPDATE_CACHE(name, gb)\
770 index= SHOW_UBITS(name, gb, nb_bits) + code;\
771 code = table[index][0];\
772 n = table[index][1];\
775 SKIP_BITS(name, gb, n)\
778 #define GET_RL_VLC(level, run, name, gb, table, bits, max_depth)\
780 int n, index, nb_bits;\
782 index= SHOW_UBITS(name, gb, bits);\
783 level = table[index].level;\
784 n = table[index].len;\
786 if(max_depth > 1 && n < 0){\
787 LAST_SKIP_BITS(name, gb, bits)\
788 UPDATE_CACHE(name, gb)\
792 index= SHOW_UBITS(name, gb, nb_bits) + level;\
793 level = table[index].level;\
794 n = table[index].len;\
796 run= table[index].run;\
797 SKIP_BITS(name, gb, n)\
800 // deprecated, dont use get_vlc for new code, use get_vlc2 instead or use GET_VLC directly
801 static inline int get_vlc(GetBitContext *s, VLC *vlc)
804 VLC_TYPE (*table)[2]= vlc->table;
809 GET_VLC(code, re, s, table, vlc->bits, 3)
815 static always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
816 int bits, int max_depth)
823 GET_VLC(code, re, s, table, bits, max_depth)
830 /* define it to include statistics code (useful only for optimizing
847 extern int st_current_index;
848 extern unsigned int st_bit_counts[ST_NB];
849 extern unsigned int st_out_bit_counts[ST_NB];
851 void print_stats(void);
854 /* misc math functions */
856 static inline int av_log2(unsigned int v)
861 if (v & 0xffff0000) {
884 static inline int mid_pred(int a, int b, int c)
898 return a + b + c - vmin - vmax;
901 static inline int clip(int a, int amin, int amax)
912 extern const UINT8 ff_sqrt_tab[128];
914 int ff_gcd(int a, int b);
916 static inline int ff_sqrt(int a)
922 if(a<128) return ff_sqrt_tab[a];
924 for(s=15; s>=0; s--){
925 int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
935 * converts fourcc string to int
937 static inline int ff_get_fourcc(char *s){
938 assert( strlen(s)==4 );
940 return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
945 #define MASK_ABS(mask, level)\
950 : "+a" (level), "=&d" (mask)\
953 #define MASK_ABS(mask, level)\
955 level= (level^mask)-mask;
959 #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
960 #define COPY3_IF_LT(x,y,a,b,c,d)\
966 : "+r" (x), "+r" (a), "+r" (c)\
967 : "r" (y), "r" (b), "r" (d)\
970 #define COPY3_IF_LT(x,y,a,b,c,d)\
978 #define CLAMP_TO_8BIT(d) ((d > 0xff) ? 0xff : (d < 0) ? 0 : d)
980 #endif /* HAVE_AV_CONFIG_H */
982 #endif /* COMMON_H */