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
13 //#define ALT_BITSTREAM_READER
14 //#define ALIGNED_BITSTREAM
15 #define FAST_GET_FIRST_VLC
17 #ifdef HAVE_AV_CONFIG_H
18 /* only include the following when compiling package */
19 #include "../config.h"
36 typedef unsigned short UINT16;
37 typedef signed short INT16;
38 typedef unsigned char UINT8;
39 typedef unsigned int UINT32;
40 typedef unsigned __int64 UINT64;
41 typedef signed char INT8;
42 typedef signed int INT32;
43 typedef signed __int64 INT64;
45 typedef UINT8 uint8_t;
47 typedef UINT16 uint16_t;
48 typedef INT16 int16_t;
49 typedef UINT32 uint32_t;
50 typedef INT32 int32_t;
53 #define INT64_C(c) (c ## i64)
54 #define UINT64_C(c) (c ## i64)
56 #define inline __inline
59 Disable warning messages:
60 warning C4244: '=' : conversion from 'double' to 'float', possible loss of data
61 warning C4305: 'argument' : truncation from 'const double' to 'float'
63 #pragma warning( disable : 4244 )
64 #pragma warning( disable : 4305 )
67 #define INT64_C(c) (c ## LL)
68 #define UINT64_C(c) (c ## ULL)
69 #endif /* __MINGW32__ */
71 #define M_PI 3.14159265358979323846
72 #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
78 // code from bits/byteswap.h (C) 1997, 1998 Free Software Foundation, Inc.
80 ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
81 (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
82 #define be2me_32(x) bswap_32(x)
84 #define snprintf _snprintf
87 /* no config.h with VC */
88 #define CONFIG_ENCODERS 1
89 #define CONFIG_DECODERS 1
99 #ifndef __WINE_WINDEF16_H
100 /* workaround for typedef conflict in MPlayer (wine typedefs) */
101 typedef unsigned short UINT16;
102 typedef signed short INT16;
105 typedef unsigned char UINT8;
106 typedef unsigned int UINT32;
107 typedef unsigned long long UINT64;
108 typedef signed char INT8;
109 typedef signed int INT32;
110 typedef signed long long INT64;
112 #ifdef HAVE_AV_CONFIG_H
115 #include <sys/param.h>
119 #define INT64_C(c) (c ## LL)
120 #define UINT64_C(c) (c ## ULL)
123 #include "../bswap.h"
125 #ifdef USE_FASTMEMCPY
126 #include "fastmemcpy.h"
129 #endif /* HAVE_AV_CONFIG_H */
131 #endif /* !CONFIG_WIN32 */
135 #ifdef HAVE_AV_CONFIG_H
143 #if defined(CONFIG_WIN32) && !defined(__MINGW32__)
145 inline void dprintf(const char* fmt,...) {}
150 #define dprintf(fmt,args...) printf(fmt, ## args)
152 #define dprintf(fmt,args...)
155 #endif /* !CONFIG_WIN32 */
157 #endif /* HAVE_AV_CONFIG_H */
161 struct PutBitContext;
163 typedef void (*WriteDataFunc)(void *, UINT8 *, int);
165 typedef struct PutBitContext {
166 #ifdef ALT_BITSTREAM_WRITER
167 UINT8 *buf, *buf_end;
172 UINT8 *buf, *buf_ptr, *buf_end;
174 INT64 data_out_size; /* in bytes */
177 void init_put_bits(PutBitContext *s,
178 UINT8 *buffer, int buffer_size,
180 void (*write_data)(void *, UINT8 *, int));
182 INT64 get_bit_count(PutBitContext *s); /* XXX: change function name */
183 void align_put_bits(PutBitContext *s);
184 void flush_put_bits(PutBitContext *s);
186 /* jpeg specific put_bits */
187 void jflush_put_bits(PutBitContext *s);
191 typedef struct GetBitContext {
192 #ifdef ALT_BITSTREAM_READER
198 UINT8 *buf, *buf_ptr, *buf_end;
206 int table_size, table_allocated;
209 /* used to avoid missaligned exceptions on some archs (alpha, ...) */
211 #define unaligned32(a) (*(UINT32*)(a))
214 static inline uint32_t unaligned32(const void *v) {
217 } __attribute__((packed));
219 return ((const struct Unaligned *) v)->i;
221 #elif defined(__DECC)
222 static inline uint32_t unaligned32(const void *v) {
223 return *(const __unaligned uint32_t *) v;
226 static inline uint32_t unaligned32(const void *v) {
227 return *(const uint32_t *) v;
232 #ifndef ALT_BITSTREAM_WRITER
233 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
235 unsigned int bit_buf;
239 st_out_bit_counts[st_current_index] += n;
241 // printf("put_bits=%d %x\n", n, value);
242 assert(n == 32 || value < (1U << n));
244 bit_buf = s->bit_buf;
245 bit_left = s->bit_left;
247 // printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
250 bit_buf = (bit_buf<<n) | value;
254 bit_buf |= value >> (n - bit_left);
255 *(UINT32 *)s->buf_ptr = be2me_32(bit_buf);
256 //printf("bitbuf = %08x\n", bit_buf);
262 s->bit_buf = bit_buf;
263 s->bit_left = bit_left;
268 #ifdef ALT_BITSTREAM_WRITER
269 static inline void put_bits(PutBitContext *s, int n, unsigned int value)
271 #ifdef ALIGNED_BITSTREAM_WRITER
274 "movl %0, %%ecx \n\t"
275 "xorl %%eax, %%eax \n\t"
276 "shrdl %%cl, %1, %%eax \n\t"
278 "movl %0, %%ecx \n\t"
279 "shrl $3, %%ecx \n\t"
280 "andl $0xFFFFFFFC, %%ecx \n\t"
282 "orl %1, (%2, %%ecx) \n\t"
285 "movl %%eax, 4(%2, %%ecx) \n\t"
286 : "=&r" (s->index), "=&r" (value)
287 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n))
292 uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5);
296 ptr[0] |= be2me_32(value>>(index&31));
297 ptr[1] = be2me_32(value<<(32-(index&31)));
298 //if(n>24) printf("%d %d\n", n, value);
302 #else //ALIGNED_BITSTREAM_WRITER
305 "movl $7, %%ecx \n\t"
306 "andl %0, %%ecx \n\t"
307 "addl %3, %%ecx \n\t"
311 "movl %0, %%ecx \n\t"
312 "shrl $3, %%ecx \n\t"
313 "orl %1, (%%ecx, %2) \n\t"
315 "movl $0, 4(%%ecx, %2) \n\t"
316 : "=&r" (s->index), "=&r" (value)
317 : "r" (s->buf), "r" (n), "0" (s->index), "1" (value)
322 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
324 ptr[0] |= be2me_32(value<<(32-n-(index&7) ));
326 //if(n>24) printf("%d %d\n", n, value);
330 #endif //!ALIGNED_BITSTREAM_WRITER
334 #ifndef ALT_BITSTREAM_WRITER
335 /* for jpeg : escape 0xff with 0x00 after it */
336 static inline void jput_bits(PutBitContext *s, int n, unsigned int value)
338 unsigned int bit_buf, b;
341 assert(n == 32 || value < (1U << n));
343 bit_buf = s->bit_buf;
344 bit_left = s->bit_left;
346 //printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
349 bit_buf = (bit_buf<<n) | value;
353 bit_buf |= value >> (n - bit_left);
367 s->bit_buf = bit_buf;
368 s->bit_left = bit_left;
373 #ifdef ALT_BITSTREAM_WRITER
374 static inline void jput_bits(PutBitContext *s, int n, int value)
377 uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
379 //if(n>24) printf("%d %d\n", n, value);
381 v |= be2me_32(value<<(32-n-(index&7) ));
382 if(((v+0x01010101)^0xFFFFFFFF)&v&0x80808080)
384 /* handle idiotic (m)jpeg escapes */
385 uint8_t *bPtr= (uint8_t*)ptr;
386 int numChecked= ((index+n)>>3) - (index>>3);
391 if((v&0xFF000000)==0xFF000000 && numChecked>0){
395 *(bPtr++)= (v>>16)&0xFF;
396 if((v&0x00FF0000)==0x00FF0000 && numChecked>1){
400 *(bPtr++)= (v>>8)&0xFF;
401 if((v&0x0000FF00)==0x0000FF00 && numChecked>2){
406 if((v&0x000000FF)==0x000000FF && numChecked>3){
410 *((uint32_t*)bPtr)= 0;
424 static inline uint8_t* pbBufPtr(PutBitContext *s)
426 #ifdef ALT_BITSTREAM_WRITER
427 return s->buf + (s->index>>3);
433 void init_get_bits(GetBitContext *s,
434 UINT8 *buffer, int buffer_size);
436 #ifndef ALT_BITSTREAM_READER
437 unsigned int get_bits_long(GetBitContext *s, int n);
438 unsigned int show_bits_long(GetBitContext *s, int n);
441 static inline unsigned int get_bits(GetBitContext *s, int n){
442 #ifdef ALT_BITSTREAM_READER
443 #ifdef ALIGNED_BITSTREAM
445 uint32_t result1= be2me_32( ((uint32_t *)s->buffer)[index>>5] );
446 uint32_t result2= be2me_32( ((uint32_t *)s->buffer)[(index>>5) + 1] );
448 asm ("shldl %%cl, %2, %0\n\t"
450 : "0" (result1), "r" (result2), "c" (index));
452 result1<<= (index&0x1F);
453 result2= (result2>>1) >> (31-(index&0x1F));
461 #else //ALIGNED_BITSTREAM
463 uint32_t result= be2me_32( unaligned32( ((uint8_t *)s->buffer)+(index>>3) ) );
465 result<<= (index&0x07);
471 #endif //!ALIGNED_BITSTREAM
472 #else //ALT_BITSTREAM_READER
474 /* most common case here */
475 unsigned int val = s->bit_buf >> (32 - n);
479 st_bit_counts[st_current_index] += n;
483 return get_bits_long(s,n);
484 #endif //!ALT_BITSTREAM_READER
487 static inline unsigned int get_bits1(GetBitContext *s){
488 #ifdef ALT_BITSTREAM_READER
490 uint8_t result= s->buffer[ index>>3 ];
491 result<<= (index&0x07);
499 /* most common case here */
500 unsigned int val = s->bit_buf >> 31;
504 st_bit_counts[st_current_index]++;
508 return get_bits_long(s,1);
512 /* This function is identical to get_bits(), the only */
513 /* diference is that it doesn't touch the buffer */
514 /* it is usefull to see the buffer. */
515 static inline unsigned int show_bits(GetBitContext *s, int n)
517 #ifdef ALT_BITSTREAM_READER
518 #ifdef ALIGNED_BITSTREAM
520 uint32_t result1= be2me_32( ((uint32_t *)s->buffer)[index>>5] );
521 uint32_t result2= be2me_32( ((uint32_t *)s->buffer)[(index>>5) + 1] );
523 asm ("shldl %%cl, %2, %0\n\t"
525 : "0" (result1), "r" (result2), "c" (index));
527 result1<<= (index&0x1F);
528 result2= (result2>>1) >> (31-(index&0x1F));
534 #else //ALIGNED_BITSTREAM
536 uint32_t result= be2me_32( unaligned32( ((uint8_t *)s->buffer)+(index>>3) ) );
538 result<<= (index&0x07);
542 #endif //!ALIGNED_BITSTREAM
543 #else //ALT_BITSTREAM_READER
545 /* most common case here */
546 unsigned int val = s->bit_buf >> (32 - n);
549 return show_bits_long(s,n);
550 #endif //!ALT_BITSTREAM_READER
553 static inline void skip_bits(GetBitContext *s, int n){
554 #ifdef ALT_BITSTREAM_READER
558 /* most common case here */
562 st_bit_counts[st_current_index] += n;
570 static inline void skip_bits1(GetBitContext *s){
571 #ifdef ALT_BITSTREAM_READER
575 /* most common case here */
579 st_bit_counts[st_current_index]++;
587 static inline int get_bits_count(GetBitContext *s)
589 #ifdef ALT_BITSTREAM_READER
592 return (s->buf_ptr - s->buf) * 8 - s->bit_cnt;
596 int check_marker(GetBitContext *s, char *msg);
597 void align_get_bits(GetBitContext *s);
598 int init_vlc(VLC *vlc, int nb_bits, int nb_codes,
599 const void *bits, int bits_wrap, int bits_size,
600 const void *codes, int codes_wrap, int codes_size);
601 void free_vlc(VLC *vlc);
603 #ifdef ALT_BITSTREAM_READER
604 #ifdef ALIGNED_BITSTREAM
606 #define SHOW_BITS(s, val, n) \
607 val= be2me_32( ((uint32_t *)(s)->buffer)[bit_cnt>>5] );\
608 {uint32_t result2= be2me_32( ((uint32_t *)(s)->buffer)[(bit_cnt>>5) + 1] );\
609 asm ("shldl %%cl, %2, %0\n\t"\
611 : "0" (val), "r" (result2), "c" (bit_cnt));\
612 ((uint32_t)val)>>= 32 - n;}
614 #define SHOW_BITS(s, val, n) \
615 val= be2me_32( ((uint32_t *)(s)->buffer)[bit_cnt>>5] );\
616 {uint32_t result2= be2me_32( ((uint32_t *)(s)->buffer)[(bit_cnt>>5) + 1] );\
617 val<<= (bit_cnt&0x1F);\
618 result2= (result2>>1) >> (31-(bit_cnt&0x1F));\
620 ((uint32_t)val)>>= 32 - n;}
622 #else //ALIGNED_BITSTREAM
623 #define SHOW_BITS(s, val, n) \
624 val= be2me_32( unaligned32( ((uint8_t *)(s)->buffer)+(bit_cnt>>3) ) );\
625 val<<= (bit_cnt&0x07);\
626 ((uint32_t)val)>>= 32 - n;
627 #endif // !ALIGNED_BITSTREAM
628 #define FLUSH_BITS(n) bit_cnt+=n;
629 #define SAVE_BITS(s) bit_cnt= (s)->index;
630 #define RESTORE_BITS(s) (s)->index= bit_cnt;
633 /* macro to go faster */
634 /* n must be <= 24 */
635 /* XXX: optimize buffer end test */
636 #define SHOW_BITS(s, val, n)\
638 if (bit_cnt < n && buf_ptr < (s)->buf_end) {\
639 bit_buf |= *buf_ptr++ << (24 - bit_cnt);\
641 if (bit_cnt < n && buf_ptr < (s)->buf_end) {\
642 bit_buf |= *buf_ptr++ << (24 - bit_cnt);\
644 if (bit_cnt < n && buf_ptr < (s)->buf_end) {\
645 bit_buf |= *buf_ptr++ << (24 - bit_cnt);\
650 val = bit_buf >> (32 - n);\
653 /* SHOW_BITS with n1 >= n must be been done before */
654 #define FLUSH_BITS(n)\
660 #define SAVE_BITS(s) \
662 bit_cnt = (s)->bit_cnt;\
663 bit_buf = (s)->bit_buf;\
664 buf_ptr = (s)->buf_ptr;\
667 #define RESTORE_BITS(s) \
669 (s)->buf_ptr = buf_ptr;\
670 (s)->bit_buf = bit_buf;\
671 (s)->bit_cnt = bit_cnt;\
673 #endif // !ALT_BITSTREAM_READER
675 static inline int get_vlc(GetBitContext *s, VLC *vlc)
677 int code, n, nb_bits, index;
681 #ifndef ALT_BITSTREAM_READER
688 table_codes = vlc->table_codes;
689 table_bits = vlc->table_bits;
691 #ifdef FAST_GET_FIRST_VLC
692 SHOW_BITS(s, index, nb_bits);
693 code = table_codes[index];
694 n = table_bits[index];
696 /* most common case (90%)*/
705 table_codes = vlc->table_codes + code;
706 table_bits = vlc->table_bits + code;
710 SHOW_BITS(s, index, nb_bits);
711 code = table_codes[index];
712 n = table_bits[index];
714 /* most common case */
717 st_bit_counts[st_current_index] += n;
725 st_bit_counts[st_current_index] += nb_bits;
728 table_codes = vlc->table_codes + code;
729 table_bits = vlc->table_bits + code;
737 /* define it to include statistics code (useful only for optimizing
754 extern int st_current_index;
755 extern unsigned int st_bit_counts[ST_NB];
756 extern unsigned int st_out_bit_counts[ST_NB];
758 void print_stats(void);
761 /* misc math functions */
763 static inline int av_log2(unsigned int v)
768 if (v & 0xffff0000) {
791 void *av_mallocz(int size);