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)
161 #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
162 #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
163 #define MAX(a,b) ((a) > (b) ? (a) : (b))
164 #define MIN(a,b) ((a) > (b) ? (b) : (a))
167 // avoid +32 for shift optimization (gcc should do that ...)
168 static inline int32_t NEG_SSR32( int32_t a, int8_t s){
169 asm ("sarl %1, %0\n\t"
171 : "ic" ((uint8_t)(-s))
175 static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
176 asm ("shrl %1, %0\n\t"
178 : "ic" ((uint8_t)(-s))
183 # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s)))
184 # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
189 struct PutBitContext;
191 typedef void (*WriteDataFunc)(void *, UINT8 *, int);
193 typedef struct PutBitContext {
194 #ifdef ALT_BITSTREAM_WRITER
195 UINT8 *buf, *buf_end;
200 UINT8 *buf, *buf_ptr, *buf_end;
202 INT64 data_out_size; /* in bytes */
205 void init_put_bits(PutBitContext *s,
206 UINT8 *buffer, int buffer_size,
208 void (*write_data)(void *, UINT8 *, int));
210 INT64 get_bit_count(PutBitContext *s); /* XXX: change function name */
211 void align_put_bits(PutBitContext *s);
212 void flush_put_bits(PutBitContext *s);
213 void put_string(PutBitContext * pbc, char *s);
215 /* jpeg specific put_bits */
216 void jflush_put_bits(PutBitContext *s);
220 typedef struct GetBitContext {
221 UINT8 *buffer, *buffer_end;
222 #ifdef ALT_BITSTREAM_READER
224 #elif defined LIBMPEG2_BITSTREAM_READER
228 #elif defined A32_BITSTREAM_READER
237 static inline int get_bits_count(GetBitContext *s);
239 #define VLC_TYPE INT16
243 VLC_TYPE (*table)[2]; // code, bits
244 int table_size, table_allocated;
247 typedef struct RL_VLC_ELEM {
253 /* used to avoid missaligned exceptions on some archs (alpha, ...) */
255 # define unaligned32(a) (*(UINT32*)(a))
258 static inline uint32_t unaligned32(const void *v) {
261 } __attribute__((packed));
263 return ((const struct Unaligned *) v)->i;
265 # elif defined(__DECC)
266 static inline uint32_t unaligned32(const void *v) {
267 return *(const __unaligned uint32_t *) v;
270 static inline uint32_t unaligned32(const void *v) {
271 return *(const uint32_t *) v;
276 #ifndef ALT_BITSTREAM_WRITER
277 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
279 unsigned int bit_buf;
283 st_out_bit_counts[st_current_index] += n;
285 // printf("put_bits=%d %x\n", n, value);
286 assert(n == 32 || value < (1U << n));
288 bit_buf = s->bit_buf;
289 bit_left = s->bit_left;
291 // printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
294 bit_buf = (bit_buf<<n) | value;
298 bit_buf |= value >> (n - bit_left);
299 *(UINT32 *)s->buf_ptr = be2me_32(bit_buf);
300 //printf("bitbuf = %08x\n", bit_buf);
306 s->bit_buf = bit_buf;
307 s->bit_left = bit_left;
312 #ifdef ALT_BITSTREAM_WRITER
313 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
315 # ifdef ALIGNED_BITSTREAM_WRITER
318 "movl %0, %%ecx \n\t"
319 "xorl %%eax, %%eax \n\t"
320 "shrdl %%cl, %1, %%eax \n\t"
322 "movl %0, %%ecx \n\t"
323 "shrl $3, %%ecx \n\t"
324 "andl $0xFFFFFFFC, %%ecx \n\t"
326 "orl %1, (%2, %%ecx) \n\t"
329 "movl %%eax, 4(%2, %%ecx) \n\t"
330 : "=&r" (s->index), "=&r" (value)
331 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n))
336 uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5);
340 ptr[0] |= be2me_32(value>>(index&31));
341 ptr[1] = be2me_32(value<<(32-(index&31)));
342 //if(n>24) printf("%d %d\n", n, value);
346 # else //ALIGNED_BITSTREAM_WRITER
349 "movl $7, %%ecx \n\t"
350 "andl %0, %%ecx \n\t"
351 "addl %3, %%ecx \n\t"
355 "movl %0, %%ecx \n\t"
356 "shrl $3, %%ecx \n\t"
357 "orl %1, (%%ecx, %2) \n\t"
359 "movl $0, 4(%%ecx, %2) \n\t"
360 : "=&r" (s->index), "=&r" (value)
361 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value)
366 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
368 ptr[0] |= be2me_32(value<<(32-n-(index&7) ));
370 //if(n>24) printf("%d %d\n", n, value);
374 # endif //!ALIGNED_BITSTREAM_WRITER
378 #ifndef ALT_BITSTREAM_WRITER
379 /* for jpeg : escape 0xff with 0x00 after it */
380 static inline void jput_bits(PutBitContext *s, int n, unsigned int value)
382 unsigned int bit_buf, b;
385 assert(n == 32 || value < (1U << n));
387 bit_buf = s->bit_buf;
388 bit_left = s->bit_left;
390 //printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
393 bit_buf = (bit_buf<<n) | value;
397 bit_buf |= value >> (n - bit_left);
411 s->bit_buf = bit_buf;
412 s->bit_left = bit_left;
417 #ifdef ALT_BITSTREAM_WRITER
418 static inline void jput_bits(PutBitContext *s, int n, int value)
421 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
423 //if(n>24) printf("%d %d\n", n, value);
425 v |= be2me_32(value<<(32-n-(index&7) ));
426 if(((v+0x01010101)^0xFFFFFFFF)&v&0x80808080)
428 /* handle idiotic (m)jpeg escapes */
429 uint8_t *bPtr= (uint8_t*)ptr;
430 int numChecked= ((index+n)>>3) - (index>>3);
435 if((v&0xFF000000)==0xFF000000 && numChecked>0){
439 *(bPtr++)= (v>>16)&0xFF;
440 if((v&0x00FF0000)==0x00FF0000 && numChecked>1){
444 *(bPtr++)= (v>>8)&0xFF;
445 if((v&0x0000FF00)==0x0000FF00 && numChecked>2){
450 if((v&0x000000FF)==0x000000FF && numChecked>3){
454 *((uint32_t*)bPtr)= 0;
467 static inline uint8_t* pbBufPtr(PutBitContext *s)
469 #ifdef ALT_BITSTREAM_WRITER
470 return s->buf + (s->index>>3);
476 /* Bitstream reader API docs:
478 abritary name which is used as prefix for the internal variables
483 OPEN_READER(name, gb)
484 loads gb into local variables
486 CLOSE_READER(name, gb)
487 stores local vars in gb
489 UPDATE_CACHE(name, gb)
490 refills the internal cache from the bitstream
491 after this call at least MIN_CACHE_BITS will be available,
494 will output the contents of the internal cache, next bit is MSB of 32 or 64 bit (FIXME 64bit)
496 SHOW_UBITS(name, gb, num)
497 will return the nest num bits
499 SHOW_SBITS(name, gb, num)
500 will return the nest num bits and do sign extension
502 SKIP_BITS(name, gb, num)
503 will skip over the next num bits
504 note, this is equinvalent to SKIP_CACHE; SKIP_COUNTER
506 SKIP_CACHE(name, gb, num)
507 will remove the next num bits from the cache (note SKIP_COUNTER MUST be called before UPDATE_CACHE / CLOSE_READER)
509 SKIP_COUNTER(name, gb, num)
510 will increment the internal bit counter (see SKIP_CACHE & SKIP_BITS)
512 LAST_SKIP_CACHE(name, gb, num)
513 will remove the next num bits from the cache if it is needed for UPDATE_CACHE otherwise it will do nothing
515 LAST_SKIP_BITS(name, gb, num)
516 is equinvalent to SKIP_LAST_CACHE; SKIP_COUNTER
518 for examples see get_bits, show_bits, skip_bits, get_vlc
521 #ifdef ALT_BITSTREAM_READER
522 # define MIN_CACHE_BITS 25
524 # define OPEN_READER(name, gb)\
525 int name##_index= (gb)->index;\
526 int name##_cache= 0;\
528 # define CLOSE_READER(name, gb)\
529 (gb)->index= name##_index;\
531 # define UPDATE_CACHE(name, gb)\
532 name##_cache= be2me_32( unaligned32( ((uint8_t *)(gb)->buffer)+(name##_index>>3) ) ) << (name##_index&0x07);\
534 # define SKIP_CACHE(name, gb, num)\
535 name##_cache <<= (num);\
538 # define SKIP_COUNTER(name, gb, num)\
539 name##_index += (num);\
541 # define SKIP_BITS(name, gb, num)\
543 SKIP_CACHE(name, gb, num)\
544 SKIP_COUNTER(name, gb, num)\
547 # define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
548 # define LAST_SKIP_CACHE(name, gb, num) ;
550 # define SHOW_UBITS(name, gb, num)\
551 NEG_USR32(name##_cache, num)
553 # define SHOW_SBITS(name, gb, num)\
554 NEG_SSR32(name##_cache, num)
556 # define GET_CACHE(name, gb)\
557 ((uint32_t)name##_cache)
559 static inline int get_bits_count(GetBitContext *s){
562 #elif defined LIBMPEG2_BITSTREAM_READER
563 //libmpeg2 like reader
565 # define MIN_CACHE_BITS 16
567 # define OPEN_READER(name, gb)\
568 int name##_bit_count=(gb)->bit_count;\
569 int name##_cache= (gb)->cache;\
570 uint8_t * name##_buffer_ptr=(gb)->buffer_ptr;\
572 # define CLOSE_READER(name, gb)\
573 (gb)->bit_count= name##_bit_count;\
574 (gb)->cache= name##_cache;\
575 (gb)->buffer_ptr= name##_buffer_ptr;\
577 # define UPDATE_CACHE(name, gb)\
578 if(name##_bit_count > 0){\
579 name##_cache+= ((name##_buffer_ptr[0]<<8) + name##_buffer_ptr[1]) << name##_bit_count;\
580 name##_buffer_ptr+=2;\
581 name##_bit_count-= 16;\
584 # define SKIP_CACHE(name, gb, num)\
585 name##_cache <<= (num);\
587 # define SKIP_COUNTER(name, gb, num)\
588 name##_bit_count += (num);\
590 # define SKIP_BITS(name, gb, num)\
592 SKIP_CACHE(name, gb, num)\
593 SKIP_COUNTER(name, gb, num)\
596 # define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
597 # define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
599 # define SHOW_UBITS(name, gb, num)\
600 NEG_USR32(name##_cache, num)
602 # define SHOW_SBITS(name, gb, num)\
603 NEG_SSR32(name##_cache, num)
605 # define GET_CACHE(name, gb)\
606 ((uint32_t)name##_cache)
608 static inline int get_bits_count(GetBitContext *s){
609 return (s->buffer_ptr - s->buffer)*8 - 16 + s->bit_count;
612 #elif defined A32_BITSTREAM_READER
614 # define MIN_CACHE_BITS 32
616 # define OPEN_READER(name, gb)\
617 int name##_bit_count=(gb)->bit_count;\
618 uint32_t name##_cache0= (gb)->cache0;\
619 uint32_t name##_cache1= (gb)->cache1;\
620 uint32_t * name##_buffer_ptr=(gb)->buffer_ptr;\
622 # define CLOSE_READER(name, gb)\
623 (gb)->bit_count= name##_bit_count;\
624 (gb)->cache0= name##_cache0;\
625 (gb)->cache1= name##_cache1;\
626 (gb)->buffer_ptr= name##_buffer_ptr;\
628 # define UPDATE_CACHE(name, gb)\
629 if(name##_bit_count > 0){\
630 const uint32_t next= be2me_32( *name##_buffer_ptr );\
631 name##_cache0 |= NEG_USR32(next,name##_bit_count);\
632 name##_cache1 |= next<<name##_bit_count;\
633 name##_buffer_ptr++;\
634 name##_bit_count-= 32;\
638 # define SKIP_CACHE(name, gb, num)\
640 "shldl %2, %1, %0 \n\t"\
642 : "+r" (name##_cache0), "+r" (name##_cache1)\
643 : "Ic" ((uint8_t)num)\
646 # define SKIP_CACHE(name, gb, num)\
647 name##_cache0 <<= (num);\
648 name##_cache0 |= NEG_USR32(name##_cache1,num);\
649 name##_cache1 <<= (num);
652 # define SKIP_COUNTER(name, gb, num)\
653 name##_bit_count += (num);\
655 # define SKIP_BITS(name, gb, num)\
657 SKIP_CACHE(name, gb, num)\
658 SKIP_COUNTER(name, gb, num)\
661 # define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
662 # define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
664 # define SHOW_UBITS(name, gb, num)\
665 NEG_USR32(name##_cache0, num)
667 # define SHOW_SBITS(name, gb, num)\
668 NEG_SSR32(name##_cache0, num)
670 # define GET_CACHE(name, gb)\
673 static inline int get_bits_count(GetBitContext *s){
674 return ((uint8_t*)s->buffer_ptr - s->buffer)*8 - 32 + s->bit_count;
679 static inline unsigned int get_bits(GetBitContext *s, int n){
683 tmp= SHOW_UBITS(re, s, n);
684 LAST_SKIP_BITS(re, s, n)
689 static inline unsigned int show_bits(GetBitContext *s, int n){
693 tmp= SHOW_UBITS(re, s, n);
694 // CLOSE_READER(re, s)
698 static inline void skip_bits(GetBitContext *s, int n){
699 //Note gcc seems to optimize this to s->index+=n for the ALT_READER :))
702 LAST_SKIP_BITS(re, s, n)
706 static inline unsigned int get_bits1(GetBitContext *s){
707 #ifdef ALT_BITSTREAM_READER
709 uint8_t result= s->buffer[ index>>3 ];
710 result<<= (index&0x07);
717 return get_bits(s, 1);
721 static inline unsigned int show_bits1(GetBitContext *s){
722 return show_bits(s, 1);
725 static inline void skip_bits1(GetBitContext *s){
729 void init_get_bits(GetBitContext *s,
730 UINT8 *buffer, int buffer_size);
732 int check_marker(GetBitContext *s, char *msg);
733 void align_get_bits(GetBitContext *s);
734 int init_vlc(VLC *vlc, int nb_bits, int nb_codes,
735 const void *bits, int bits_wrap, int bits_size,
736 const void *codes, int codes_wrap, int codes_size);
737 void free_vlc(VLC *vlc);
739 #define GET_VLC(code, name, gb, table, bits, max_depth)\
741 int n, index, nb_bits;\
743 index= SHOW_UBITS(name, gb, bits);\
744 code = table[index][0];\
745 n = table[index][1];\
747 if(max_depth > 1 && n < 0){\
748 LAST_SKIP_BITS(name, gb, bits)\
749 UPDATE_CACHE(name, gb)\
753 index= SHOW_UBITS(name, gb, nb_bits) + code;\
754 code = table[index][0];\
755 n = table[index][1];\
756 if(max_depth > 2 && n < 0){\
757 LAST_SKIP_BITS(name, gb, nb_bits)\
758 UPDATE_CACHE(name, gb)\
762 index= SHOW_UBITS(name, gb, nb_bits) + code;\
763 code = table[index][0];\
764 n = table[index][1];\
767 SKIP_BITS(name, gb, n)\
770 #define GET_RL_VLC(level, run, name, gb, table, bits, max_depth)\
772 int n, index, nb_bits;\
774 index= SHOW_UBITS(name, gb, bits);\
775 level = table[index].level;\
776 n = table[index].len;\
778 if(max_depth > 1 && n < 0){\
779 LAST_SKIP_BITS(name, gb, bits)\
780 UPDATE_CACHE(name, gb)\
784 index= SHOW_UBITS(name, gb, nb_bits) + level;\
785 level = table[index].level;\
786 n = table[index].len;\
788 run= table[index].run;\
789 SKIP_BITS(name, gb, n)\
792 // deprecated, dont use get_vlc for new code, use get_vlc2 instead or use GET_VLC directly
793 static inline int get_vlc(GetBitContext *s, VLC *vlc)
796 VLC_TYPE (*table)[2]= vlc->table;
801 GET_VLC(code, re, s, table, vlc->bits, 3)
807 static always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
808 int bits, int max_depth)
815 GET_VLC(code, re, s, table, bits, max_depth)
822 /* define it to include statistics code (useful only for optimizing
839 extern int st_current_index;
840 extern unsigned int st_bit_counts[ST_NB];
841 extern unsigned int st_out_bit_counts[ST_NB];
843 void print_stats(void);
846 /* misc math functions */
848 static inline int av_log2(unsigned int v)
853 if (v & 0xffff0000) {
876 static inline int mid_pred(int a, int b, int c)
890 return a + b + c - vmin - vmax;
893 static inline int clip(int a, int amin, int amax)
904 extern const UINT8 ff_sqrt_tab[128];
906 int ff_gcd(int a, int b);
908 static inline int ff_sqrt(int a)
914 if(a<128) return ff_sqrt_tab[a];
916 for(s=15; s>=0; s--){
917 int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
927 * converts fourcc string to int
929 static inline int ff_get_fourcc(char *s){
930 assert( strlen(s)==4 );
932 return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
937 #define MASK_ABS(mask, level)\
942 : "+a" (level), "=&d" (mask)\
945 #define MASK_ABS(mask, level)\
947 level= (level^mask)-mask;
951 #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
952 #define COPY3_IF_LT(x,y,a,b,c,d)\
958 : "+r" (x), "+r" (a), "+r" (c)\
959 : "r" (y), "r" (b), "r" (d)\
962 #define COPY3_IF_LT(x,y,a,b,c,d)\
970 #define CLAMP_TO_8BIT(d) ((d > 0xff) ? 0xff : (d < 0) ? 0 : d)
972 #endif /* HAVE_AV_CONFIG_H */
974 #endif /* COMMON_H */