+++ /dev/null
-/**
- * @file common.h
- * common internal api header.
- */
-
-#ifndef COMMON_H
-#define COMMON_H
-
-#if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
-# define CONFIG_WIN32
-#endif
-
-//#define ALT_BITSTREAM_WRITER
-//#define ALIGNED_BITSTREAM_WRITER
-
-#define ALT_BITSTREAM_READER
-//#define LIBMPEG2_BITSTREAM_READER
-//#define A32_BITSTREAM_READER
-#define LIBMPEG2_BITSTREAM_READER_HACK //add BERO
-
-#ifdef HAVE_AV_CONFIG_H
-/* only include the following when compiling package */
-# include "config.h"
-
-# include <stdlib.h>
-# include <stdio.h>
-# include <string.h>
-# include <ctype.h>
-# ifndef __BEOS__
-# include <errno.h>
-# else
-# include "berrno.h"
-# endif
-# include <math.h>
-
-# ifndef ENODATA
-# define ENODATA 61
-# endif
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-#include <stddef.h>
-#ifndef offsetof
-# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
-#endif
-
-#define AVOPTION_CODEC_BOOL(name, help, field) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL }
-#define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval }
-#define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval }
-#define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval }
-#define AVOPTION_CODEC_STRING(name, help, field, str, val) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str }
-#define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \
- { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL }
-#define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr }
-#define AVOPTION_END() AVOPTION_SUB(NULL)
-
-struct AVOption;
-#ifdef HAVE_MMX
-extern const struct AVOption avoptions_common[3 + 5];
-#else
-extern const struct AVOption avoptions_common[3];
-#endif
-extern const struct AVOption avoptions_workaround_bug[11];
-
-#endif /* HAVE_AV_CONFIG_H */
-
-/* Suppress restrict if it was not defined in config.h. */
-#ifndef restrict
-# define restrict
-#endif
-
-#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
-# define always_inline __attribute__((always_inline)) inline
-#else
-# define always_inline inline
-#endif
-
-#ifdef CONFIG_WIN32
-
-/* windows */
-
-typedef unsigned short uint16_t;
-typedef signed short int16_t;
-typedef unsigned char uint8_t;
-typedef unsigned int uint32_t;
-typedef unsigned __int64 uint64_t;
-typedef signed char int8_t;
-typedef signed int int32_t;
-typedef signed __int64 int64_t;
-
-# ifndef __MINGW32__
-# define int64_t_C(c) (c ## i64)
-# define uint64_t_C(c) (c ## i64)
-
-# define inline __inline
-
-# else
-# define int64_t_C(c) (c ## LL)
-# define uint64_t_C(c) (c ## ULL)
-# endif /* __MINGW32__ */
-
-# ifdef _DEBUG
-# define DEBUG
-# endif
-
-# define snprintf _snprintf
-# define vsnprintf _vsnprintf
-
-/* CONFIG_WIN32 end */
-#elif defined (CONFIG_OS2)
-/* OS/2 EMX */
-
-#include <inttypes.h>
-
-#ifndef int64_t_C
-#define int64_t_C(c) (c ## LL)
-#define uint64_t_C(c) (c ## ULL)
-#endif
-
-#ifdef HAVE_AV_CONFIG_H
-
-#ifdef USE_FASTMEMCPY
-#include "fastmemcpy.h"
-#endif
-
-#include <float.h>
-
-#endif /* HAVE_AV_CONFIG_H */
-
-/* CONFIG_OS2 end */
-#else
-
-/* unix */
-
-#include <inttypes.h>
-
-#ifndef int64_t_C
-#define int64_t_C(c) (c ## LL)
-#define uint64_t_C(c) (c ## ULL)
-#endif
-
-#ifdef HAVE_AV_CONFIG_H
-
-# ifdef USE_FASTMEMCPY
-# include "fastmemcpy.h"
-# endif
-# endif /* HAVE_AV_CONFIG_H */
-
-#endif /* !CONFIG_WIN32 && !CONFIG_OS2 */
-
-#ifdef HAVE_AV_CONFIG_H
-
-# include "bswap.h"
-
-# if defined(__MINGW32__) || defined(__CYGWIN__) || \
- defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
-# define MANGLE(a) "_" #a
-# else
-# define MANGLE(a) #a
-# endif
-
-/* debug stuff */
-
-# ifndef DEBUG
-# define NDEBUG
-# endif
-# include <assert.h>
-
-/* dprintf macros */
-# if defined(CONFIG_WIN32) && !defined(__MINGW32__)
-
-inline void dprintf(const char* fmt,...) {}
-
-# else
-
-# ifdef DEBUG
-# define dprintf(fmt,args...) printf(fmt, ## args)
-# else
-# define dprintf(fmt,args...)
-# endif
-
-# endif /* !CONFIG_WIN32 */
-
-# define av_abort() do { fprintf(stderr, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
-
-//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 FFMAX(a,b) ((a) > (b) ? (a) : (b))
-#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
-
-extern const uint32_t inverse[256];
-
-#ifdef ARCH_X86
-# define FASTDIV(a,b) \
- ({\
- int ret,dmy;\
- asm volatile(\
- "mull %3"\
- :"=d"(ret),"=a"(dmy)\
- :"1"(a),"g"(inverse[b])\
- );\
- ret;\
- })
-#elif defined(CONFIG_FASTDIV)
-# define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*inverse[b])>>32))
-#else
-# define FASTDIV(a,b) ((a)/(b))
-#endif
-
-#ifdef ARCH_X86
-// avoid +32 for shift optimization (gcc should do that ...)
-static inline int32_t NEG_SSR32( int32_t a, int8_t s){
- asm ("sarl %1, %0\n\t"
- : "+r" (a)
- : "ic" ((uint8_t)(-s))
- );
- return a;
-}
-static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
- asm ("shrl %1, %0\n\t"
- : "+r" (a)
- : "ic" ((uint8_t)(-s))
- );
- return a;
-}
-#else
-# define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s)))
-# define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
-#endif
-
-/* bit output */
-
-struct PutBitContext;
-
-typedef void (*WriteDataFunc)(void *, uint8_t *, int);
-
-typedef struct PutBitContext {
-#ifdef ALT_BITSTREAM_WRITER
- uint8_t *buf, *buf_end;
- int index;
-#else
- uint32_t bit_buf;
- int bit_left;
- uint8_t *buf, *buf_ptr, *buf_end;
-#endif
- int64_t data_out_size; /* in bytes */
-} PutBitContext;
-
-void init_put_bits(PutBitContext *s,
- uint8_t *buffer, int buffer_size,
- void *opaque,
- void (*write_data)(void *, uint8_t *, int));
-
-int64_t get_bit_count(PutBitContext *s); /* XXX: change function name */
-void align_put_bits(PutBitContext *s);
-void flush_put_bits(PutBitContext *s);
-void put_string(PutBitContext * pbc, char *s);
-
-/* bit input */
-
-typedef struct GetBitContext {
- const uint8_t *buffer, *buffer_end;
-#ifdef ALT_BITSTREAM_READER
- int index;
-#elif defined LIBMPEG2_BITSTREAM_READER
- uint8_t *buffer_ptr;
- uint32_t cache;
- int bit_count;
-#elif defined A32_BITSTREAM_READER
- uint32_t *buffer_ptr;
- uint32_t cache0;
- uint32_t cache1;
- int bit_count;
-#endif
- int size_in_bits;
-} GetBitContext;
-
-static inline int get_bits_count(GetBitContext *s);
-
-#define VLC_TYPE int16_t
-
-typedef struct VLC {
- int bits;
- VLC_TYPE (*table)[2]; ///< code, bits
- int table_size, table_allocated;
-} VLC;
-
-typedef struct RL_VLC_ELEM {
- int16_t level;
- int8_t len;
- uint8_t run;
-} RL_VLC_ELEM;
-
-#ifdef ARCH_SPARC64
-#define UNALIGNED_STORES_ARE_BAD
-#endif
-
-/* used to avoid missaligned exceptions on some archs (alpha, ...) */
-#ifdef ARCH_X86
-# define unaligned32(a) (*(uint32_t*)(a))
-#else
-# ifdef __GNUC__
-static inline uint32_t unaligned32(const void *v) {
- struct Unaligned {
- uint32_t i;
- } __attribute__((packed));
-
- return ((const struct Unaligned *) v)->i;
-}
-# elif defined(__DECC)
-static inline uint32_t unaligned32(const void *v) {
- return *(const __unaligned uint32_t *) v;
-}
-# else
-static inline uint32_t unaligned32(const void *v) {
- return *(const uint32_t *) v;
-}
-# endif
-#endif //!ARCH_X86
-
-#ifndef ALT_BITSTREAM_WRITER
-static inline void put_bits(PutBitContext *s, int n, unsigned int value)
-{
- unsigned int bit_buf;
- int bit_left;
-
-#ifdef STATS
- st_out_bit_counts[st_current_index] += n;
-#endif
- // printf("put_bits=%d %x\n", n, value);
- assert(n == 32 || value < (1U << n));
-
- bit_buf = s->bit_buf;
- bit_left = s->bit_left;
-
- // printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
- /* XXX: optimize */
- if (n < bit_left) {
- bit_buf = (bit_buf<<n) | value;
- bit_left-=n;
- } else {
- bit_buf<<=bit_left;
- bit_buf |= value >> (n - bit_left);
-#ifdef UNALIGNED_STORES_ARE_BAD
- if (3 & (int) s->buf_ptr) {
- s->buf_ptr[0] = bit_buf >> 24;
- s->buf_ptr[1] = bit_buf >> 16;
- s->buf_ptr[2] = bit_buf >> 8;
- s->buf_ptr[3] = bit_buf ;
- } else
-#endif
- *(uint32_t *)s->buf_ptr = be2me_32(bit_buf);
- //printf("bitbuf = %08x\n", bit_buf);
- s->buf_ptr+=4;
- bit_left+=32 - n;
- bit_buf = value;
- }
-
- s->bit_buf = bit_buf;
- s->bit_left = bit_left;
-}
-#endif
-
-
-#ifdef ALT_BITSTREAM_WRITER
-static inline void put_bits(PutBitContext *s, int n, unsigned int value)
-{
-# ifdef ALIGNED_BITSTREAM_WRITER
-# ifdef ARCH_X86
- asm volatile(
- "movl %0, %%ecx \n\t"
- "xorl %%eax, %%eax \n\t"
- "shrdl %%cl, %1, %%eax \n\t"
- "shrl %%cl, %1 \n\t"
- "movl %0, %%ecx \n\t"
- "shrl $3, %%ecx \n\t"
- "andl $0xFFFFFFFC, %%ecx \n\t"
- "bswapl %1 \n\t"
- "orl %1, (%2, %%ecx) \n\t"
- "bswapl %%eax \n\t"
- "addl %3, %0 \n\t"
- "movl %%eax, 4(%2, %%ecx) \n\t"
- : "=&r" (s->index), "=&r" (value)
- : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n))
- : "%eax", "%ecx"
- );
-# else
- int index= s->index;
- uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5);
-
- value<<= 32-n;
-
- ptr[0] |= be2me_32(value>>(index&31));
- ptr[1] = be2me_32(value<<(32-(index&31)));
-//if(n>24) printf("%d %d\n", n, value);
- index+= n;
- s->index= index;
-# endif
-# else //ALIGNED_BITSTREAM_WRITER
-# ifdef ARCH_X86
- asm volatile(
- "movl $7, %%ecx \n\t"
- "andl %0, %%ecx \n\t"
- "addl %3, %%ecx \n\t"
- "negl %%ecx \n\t"
- "shll %%cl, %1 \n\t"
- "bswapl %1 \n\t"
- "movl %0, %%ecx \n\t"
- "shrl $3, %%ecx \n\t"
- "orl %1, (%%ecx, %2) \n\t"
- "addl %3, %0 \n\t"
- "movl $0, 4(%%ecx, %2) \n\t"
- : "=&r" (s->index), "=&r" (value)
- : "r" (s->buf), "r" (n), "0" (s->index), "1" (value)
- : "%ecx"
- );
-# else
- int index= s->index;
- uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
-
- ptr[0] |= be2me_32(value<<(32-n-(index&7) ));
- ptr[1] = 0;
-//if(n>24) printf("%d %d\n", n, value);
- index+= n;
- s->index= index;
-# endif
-# endif //!ALIGNED_BITSTREAM_WRITER
-}
-#endif
-
-
-static inline uint8_t* pbBufPtr(PutBitContext *s)
-{
-#ifdef ALT_BITSTREAM_WRITER
- return s->buf + (s->index>>3);
-#else
- return s->buf_ptr;
-#endif
-}
-
-/* Bitstream reader API docs:
-name
- abritary name which is used as prefix for the internal variables
-
-gb
- getbitcontext
-
-OPEN_READER(name, gb)
- loads gb into local variables
-
-CLOSE_READER(name, gb)
- stores local vars in gb
-
-UPDATE_CACHE(name, gb)
- refills the internal cache from the bitstream
- after this call at least MIN_CACHE_BITS will be available,
-
-GET_CACHE(name, gb)
- will output the contents of the internal cache, next bit is MSB of 32 or 64 bit (FIXME 64bit)
-
-SHOW_UBITS(name, gb, num)
- will return the nest num bits
-
-SHOW_SBITS(name, gb, num)
- will return the nest num bits and do sign extension
-
-SKIP_BITS(name, gb, num)
- will skip over the next num bits
- note, this is equinvalent to SKIP_CACHE; SKIP_COUNTER
-
-SKIP_CACHE(name, gb, num)
- will remove the next num bits from the cache (note SKIP_COUNTER MUST be called before UPDATE_CACHE / CLOSE_READER)
-
-SKIP_COUNTER(name, gb, num)
- will increment the internal bit counter (see SKIP_CACHE & SKIP_BITS)
-
-LAST_SKIP_CACHE(name, gb, num)
- will remove the next num bits from the cache if it is needed for UPDATE_CACHE otherwise it will do nothing
-
-LAST_SKIP_BITS(name, gb, num)
- is equinvalent to SKIP_LAST_CACHE; SKIP_COUNTER
-
-for examples see get_bits, show_bits, skip_bits, get_vlc
-*/
-
-static inline int unaligned32_be(const void *v)
-{
-#ifdef CONFIG_ALIGN
- const uint8_t *p=v;
- return (((p[0]<<8) | p[1])<<16) | (p[2]<<8) | (p[3]);
-#else
- return be2me_32( unaligned32(v)); //original
-#endif
-}
-
-#ifdef ALT_BITSTREAM_READER
-# define MIN_CACHE_BITS 25
-
-# define OPEN_READER(name, gb)\
- int name##_index= (gb)->index;\
- int name##_cache= 0;\
-
-# define CLOSE_READER(name, gb)\
- (gb)->index= name##_index;\
-
-# define UPDATE_CACHE(name, gb)\
- name##_cache= unaligned32_be( ((uint8_t *)(gb)->buffer)+(name##_index>>3) ) << (name##_index&0x07);\
-
-# define SKIP_CACHE(name, gb, num)\
- name##_cache <<= (num);\
-
-// FIXME name?
-# define SKIP_COUNTER(name, gb, num)\
- name##_index += (num);\
-
-# define SKIP_BITS(name, gb, num)\
- {\
- SKIP_CACHE(name, gb, num)\
- SKIP_COUNTER(name, gb, num)\
- }\
-
-# define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
-# define LAST_SKIP_CACHE(name, gb, num) ;
-
-# define SHOW_UBITS(name, gb, num)\
- NEG_USR32(name##_cache, num)
-
-# define SHOW_SBITS(name, gb, num)\
- NEG_SSR32(name##_cache, num)
-
-# define GET_CACHE(name, gb)\
- ((uint32_t)name##_cache)
-
-static inline int get_bits_count(GetBitContext *s){
- return s->index;
-}
-#elif defined LIBMPEG2_BITSTREAM_READER
-//libmpeg2 like reader
-
-# define MIN_CACHE_BITS 17
-
-# define OPEN_READER(name, gb)\
- int name##_bit_count=(gb)->bit_count;\
- int name##_cache= (gb)->cache;\
- uint8_t * name##_buffer_ptr=(gb)->buffer_ptr;\
-
-# define CLOSE_READER(name, gb)\
- (gb)->bit_count= name##_bit_count;\
- (gb)->cache= name##_cache;\
- (gb)->buffer_ptr= name##_buffer_ptr;\
-
-#ifdef LIBMPEG2_BITSTREAM_READER_HACK
-
-# define UPDATE_CACHE(name, gb)\
- if(name##_bit_count >= 0){\
- name##_cache+= (int)be2me_16(*(uint16_t*)name##_buffer_ptr) << name##_bit_count;\
- ((uint16_t*)name##_buffer_ptr)++;\
- name##_bit_count-= 16;\
- }\
-
-#else
-
-# define UPDATE_CACHE(name, gb)\
- if(name##_bit_count >= 0){\
- name##_cache+= ((name##_buffer_ptr[0]<<8) + name##_buffer_ptr[1]) << name##_bit_count;\
- name##_buffer_ptr+=2;\
- name##_bit_count-= 16;\
- }\
-
-#endif
-
-# define SKIP_CACHE(name, gb, num)\
- name##_cache <<= (num);\
-
-# define SKIP_COUNTER(name, gb, num)\
- name##_bit_count += (num);\
-
-# define SKIP_BITS(name, gb, num)\
- {\
- SKIP_CACHE(name, gb, num)\
- SKIP_COUNTER(name, gb, num)\
- }\
-
-# define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
-# define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
-
-# define SHOW_UBITS(name, gb, num)\
- NEG_USR32(name##_cache, num)
-
-# define SHOW_SBITS(name, gb, num)\
- NEG_SSR32(name##_cache, num)
-
-# define GET_CACHE(name, gb)\
- ((uint32_t)name##_cache)
-
-static inline int get_bits_count(GetBitContext *s){
- return (s->buffer_ptr - s->buffer)*8 - 16 + s->bit_count;
-}
-
-#elif defined A32_BITSTREAM_READER
-
-# define MIN_CACHE_BITS 32
-
-# define OPEN_READER(name, gb)\
- int name##_bit_count=(gb)->bit_count;\
- uint32_t name##_cache0= (gb)->cache0;\
- uint32_t name##_cache1= (gb)->cache1;\
- uint32_t * name##_buffer_ptr=(gb)->buffer_ptr;\
-
-# define CLOSE_READER(name, gb)\
- (gb)->bit_count= name##_bit_count;\
- (gb)->cache0= name##_cache0;\
- (gb)->cache1= name##_cache1;\
- (gb)->buffer_ptr= name##_buffer_ptr;\
-
-# define UPDATE_CACHE(name, gb)\
- if(name##_bit_count > 0){\
- const uint32_t next= be2me_32( *name##_buffer_ptr );\
- name##_cache0 |= NEG_USR32(next,name##_bit_count);\
- name##_cache1 |= next<<name##_bit_count;\
- name##_buffer_ptr++;\
- name##_bit_count-= 32;\
- }\
-
-#ifdef ARCH_X86
-# define SKIP_CACHE(name, gb, num)\
- asm(\
- "shldl %2, %1, %0 \n\t"\
- "shll %2, %1 \n\t"\
- : "+r" (name##_cache0), "+r" (name##_cache1)\
- : "Ic" ((uint8_t)num)\
- );
-#else
-# define SKIP_CACHE(name, gb, num)\
- name##_cache0 <<= (num);\
- name##_cache0 |= NEG_USR32(name##_cache1,num);\
- name##_cache1 <<= (num);
-#endif
-
-# define SKIP_COUNTER(name, gb, num)\
- name##_bit_count += (num);\
-
-# define SKIP_BITS(name, gb, num)\
- {\
- SKIP_CACHE(name, gb, num)\
- SKIP_COUNTER(name, gb, num)\
- }\
-
-# define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
-# define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
-
-# define SHOW_UBITS(name, gb, num)\
- NEG_USR32(name##_cache0, num)
-
-# define SHOW_SBITS(name, gb, num)\
- NEG_SSR32(name##_cache0, num)
-
-# define GET_CACHE(name, gb)\
- (name##_cache0)
-
-static inline int get_bits_count(GetBitContext *s){
- return ((uint8_t*)s->buffer_ptr - s->buffer)*8 - 32 + s->bit_count;
-}
-
-#endif
-
-/**
- * read mpeg1 dc style vlc (sign bit + mantisse with no MSB).
- * if MSB not set it is negative
- * @param n length in bits
- * @author BERO
- */
-static inline int get_xbits(GetBitContext *s, int n){
- register int tmp;
- register int32_t cache;
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
- cache = GET_CACHE(re,s);
- if ((int32_t)cache<0) { //MSB=1
- tmp = NEG_USR32(cache,n);
- } else {
- // tmp = (-1<<n) | NEG_USR32(cache,n) + 1; mpeg12.c algo
- // tmp = - (NEG_USR32(cache,n) ^ ((1 << n) - 1)); h263.c algo
- tmp = - NEG_USR32(~cache,n);
- }
- LAST_SKIP_BITS(re, s, n)
- CLOSE_READER(re, s)
- return tmp;
-}
-
-static inline int get_sbits(GetBitContext *s, int n){
- register int tmp;
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
- tmp= SHOW_SBITS(re, s, n);
- LAST_SKIP_BITS(re, s, n)
- CLOSE_READER(re, s)
- return tmp;
-}
-
-/**
- * reads 0-17 bits.
- * Note, the alt bitstream reader can read upto 25 bits, but the libmpeg2 reader cant
- */
-static inline unsigned int get_bits(GetBitContext *s, int n){
- register int tmp;
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
- tmp= SHOW_UBITS(re, s, n);
- LAST_SKIP_BITS(re, s, n)
- CLOSE_READER(re, s)
- return tmp;
-}
-
-unsigned int get_bits_long(GetBitContext *s, int n);
-
-/**
- * shows 0-17 bits.
- * Note, the alt bitstream reader can read upto 25 bits, but the libmpeg2 reader cant
- */
-static inline unsigned int show_bits(GetBitContext *s, int n){
- register int tmp;
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
- tmp= SHOW_UBITS(re, s, n);
-// CLOSE_READER(re, s)
- return tmp;
-}
-
-unsigned int show_bits_long(GetBitContext *s, int n);
-
-static inline void skip_bits(GetBitContext *s, int n){
- //Note gcc seems to optimize this to s->index+=n for the ALT_READER :))
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
- LAST_SKIP_BITS(re, s, n)
- CLOSE_READER(re, s)
-}
-
-static inline unsigned int get_bits1(GetBitContext *s){
-#ifdef ALT_BITSTREAM_READER
- int index= s->index;
- uint8_t result= s->buffer[ index>>3 ];
- result<<= (index&0x07);
- result>>= 8 - 1;
- index++;
- s->index= index;
-
- return result;
-#else
- return get_bits(s, 1);
-#endif
-}
-
-static inline unsigned int show_bits1(GetBitContext *s){
- return show_bits(s, 1);
-}
-
-static inline void skip_bits1(GetBitContext *s){
- skip_bits(s, 1);
-}
-
-void init_get_bits(GetBitContext *s,
- const uint8_t *buffer, int buffer_size);
-
-int check_marker(GetBitContext *s, const char *msg);
-void align_get_bits(GetBitContext *s);
-int init_vlc(VLC *vlc, int nb_bits, int nb_codes,
- const void *bits, int bits_wrap, int bits_size,
- const void *codes, int codes_wrap, int codes_size);
-void free_vlc(VLC *vlc);
-
-/**
- *
- * if the vlc code is invalid and max_depth=1 than no bits will be removed
- * if the vlc code is invalid and max_depth>1 than the number of bits removed
- * is undefined
- */
-#define GET_VLC(code, name, gb, table, bits, max_depth)\
-{\
- int n, index, nb_bits;\
-\
- index= SHOW_UBITS(name, gb, bits);\
- code = table[index][0];\
- n = table[index][1];\
-\
- if(max_depth > 1 && n < 0){\
- LAST_SKIP_BITS(name, gb, bits)\
- UPDATE_CACHE(name, gb)\
-\
- nb_bits = -n;\
-\
- index= SHOW_UBITS(name, gb, nb_bits) + code;\
- code = table[index][0];\
- n = table[index][1];\
- if(max_depth > 2 && n < 0){\
- LAST_SKIP_BITS(name, gb, nb_bits)\
- UPDATE_CACHE(name, gb)\
-\
- nb_bits = -n;\
-\
- index= SHOW_UBITS(name, gb, nb_bits) + code;\
- code = table[index][0];\
- n = table[index][1];\
- }\
- }\
- SKIP_BITS(name, gb, n)\
-}
-
-#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth)\
-{\
- int n, index, nb_bits;\
-\
- index= SHOW_UBITS(name, gb, bits);\
- level = table[index].level;\
- n = table[index].len;\
-\
- if(max_depth > 1 && n < 0){\
- LAST_SKIP_BITS(name, gb, bits)\
- UPDATE_CACHE(name, gb)\
-\
- nb_bits = -n;\
-\
- index= SHOW_UBITS(name, gb, nb_bits) + level;\
- level = table[index].level;\
- n = table[index].len;\
- }\
- run= table[index].run;\
- SKIP_BITS(name, gb, n)\
-}
-
-// deprecated, dont use get_vlc for new code, use get_vlc2 instead or use GET_VLC directly
-static inline int get_vlc(GetBitContext *s, VLC *vlc)
-{
- int code;
- VLC_TYPE (*table)[2]= vlc->table;
-
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
-
- GET_VLC(code, re, s, table, vlc->bits, 3)
-
- CLOSE_READER(re, s)
- return code;
-}
-
-/**
- * parses a vlc code, faster then get_vlc()
- * @param bits is the number of bits which will be read at once, must be
- * identical to nb_bits in init_vlc()
- * @param max_depth is the number of times bits bits must be readed to completly
- * read the longest vlc code
- * = (max_vlc_length + bits - 1) / bits
- */
-static always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
- int bits, int max_depth)
-{
- int code;
-
- OPEN_READER(re, s)
- UPDATE_CACHE(re, s)
-
- GET_VLC(code, re, s, table, bits, max_depth)
-
- CLOSE_READER(re, s)
- return code;
-}
-
-//#define TRACE
-
-#ifdef TRACE
-
-static inline void print_bin(int bits, int n){
- int i;
-
- for(i=n-1; i>=0; i--){
- printf("%d", (bits>>i)&1);
- }
- for(i=n; i<24; i++)
- printf(" ");
-}
-
-static inline int get_bits_trace(GetBitContext *s, int n, char *file, char *func, int line){
- int r= get_bits(s, n);
-
- print_bin(r, n);
- printf("%5d %2d %3d bit @%5d in %s %s:%d\n", r, n, r, get_bits_count(s)-n, file, func, line);
- return r;
-}
-static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2], int bits, int max_depth, char *file, char *func, int line){
- int show= show_bits(s, 24);
- int pos= get_bits_count(s);
- int r= get_vlc2(s, table, bits, max_depth);
- int len= get_bits_count(s) - pos;
- int bits2= show>>(24-len);
-
- print_bin(bits2, len);
-
- printf("%5d %2d %3d vlc @%5d in %s %s:%d\n", bits2, len, r, pos, file, func, line);
- return r;
-}
-static inline int get_xbits_trace(GetBitContext *s, int n, char *file, char *func, int line){
- int show= show_bits(s, n);
- int r= get_xbits(s, n);
-
- print_bin(show, n);
- printf("%5d %2d %3d xbt @%5d in %s %s:%d\n", show, n, r, get_bits_count(s)-n, file, func, line);
- return r;
-}
-
-#define get_bits(s, n) get_bits_trace(s, n, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_bits1(s) get_bits_trace(s, 1, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_xbits(s, n) get_xbits_trace(s, n, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_vlc(s, vlc) get_vlc_trace(s, (vlc)->table, (vlc)->bits, 3, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_vlc2(s, tab, bits, max) get_vlc_trace(s, tab, bits, max, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-
-#define tprintf printf
-
-#else //TRACE
-#define tprintf(_arg...) {}
-#endif
-
-/* define it to include statistics code (useful only for optimizing
- codec efficiency */
-//#define STATS
-
-#ifdef STATS
-
-enum {
- ST_UNKNOWN,
- ST_DC,
- ST_INTRA_AC,
- ST_INTER_AC,
- ST_INTRA_MB,
- ST_INTER_MB,
- ST_MV,
- ST_NB,
-};
-
-extern int st_current_index;
-extern unsigned int st_bit_counts[ST_NB];
-extern unsigned int st_out_bit_counts[ST_NB];
-
-void print_stats(void);
-#endif
-
-/* misc math functions */
-extern const uint8_t ff_log2_tab[256];
-
-static inline int av_log2(unsigned int v)
-{
- int n;
-
- n = 0;
- if (v & 0xffff0000) {
- v >>= 16;
- n += 16;
- }
- if (v & 0xff00) {
- v >>= 8;
- n += 8;
- }
- n += ff_log2_tab[v];
-
- return n;
-}
-
-static inline int av_log2_16bit(unsigned int v)
-{
- int n;
-
- n = 0;
- if (v & 0xff00) {
- v >>= 8;
- n += 8;
- }
- n += ff_log2_tab[v];
-
- return n;
-}
-
-
-/* median of 3 */
-static inline int mid_pred(int a, int b, int c)
-{
- int vmin, vmax;
- vmax = vmin = a;
- if (b < vmin)
- vmin = b;
- else
- vmax = b;
-
- if (c < vmin)
- vmin = c;
- else if (c > vmax)
- vmax = c;
-
- return a + b + c - vmin - vmax;
-}
-
-static inline int clip(int a, int amin, int amax)
-{
- if (a < amin)
- return amin;
- else if (a > amax)
- return amax;
- else
- return a;
-}
-
-/* math */
-extern const uint8_t ff_sqrt_tab[128];
-
-int64_t ff_gcd(int64_t a, int64_t b);
-
-static inline int ff_sqrt(int a)
-{
- int ret=0;
- int s;
- int ret_sq=0;
-
- if(a<128) return ff_sqrt_tab[a];
-
- for(s=15; s>=0; s--){
- int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
- if(b<=a){
- ret_sq=b;
- ret+= 1<<s;
- }
- }
- return ret;
-}
-
-/**
- * converts fourcc string to int
- */
-static inline int ff_get_fourcc(const char *s){
- assert( strlen(s)==4 );
-
- return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
-}
-
-#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))
-
-
-void ff_float2fraction(int *nom_arg, int *denom_arg, double f, int max);
-
-
-#ifdef ARCH_X86
-#define MASK_ABS(mask, level)\
- asm volatile(\
- "cdq \n\t"\
- "xorl %1, %0 \n\t"\
- "subl %1, %0 \n\t"\
- : "+a" (level), "=&d" (mask)\
- );
-#else
-#define MASK_ABS(mask, level)\
- mask= level>>31;\
- level= (level^mask)-mask;
-#endif
-
-
-#if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
-#define COPY3_IF_LT(x,y,a,b,c,d)\
-asm volatile (\
- "cmpl %0, %3 \n\t"\
- "cmovl %3, %0 \n\t"\
- "cmovl %4, %1 \n\t"\
- "cmovl %5, %2 \n\t"\
- : "+r" (x), "+r" (a), "+r" (c)\
- : "r" (y), "r" (b), "r" (d)\
-);
-#else
-#define COPY3_IF_LT(x,y,a,b,c,d)\
-if((y)<(x)){\
- (x)=(y);\
- (a)=(b);\
- (c)=(d);\
-}
-#endif
-
-#ifdef ARCH_X86
-static inline long long rdtsc()
-{
- long long l;
- asm volatile( "rdtsc\n\t"
- : "=A" (l)
- );
- return l;
-}
-
-#define START_TIMER \
-static uint64_t tsum=0;\
-static int tcount=0;\
-static int tskip_count=0;\
-uint64_t tend;\
-uint64_t tstart= rdtsc();\
-
-#define STOP_TIMER(id) \
-tend= rdtsc();\
-if(tcount<2 || tend - tstart < 4*tsum/tcount){\
- tsum+= tend - tstart;\
- tcount++;\
-}else\
- tskip_count++;\
-if(256*256*256*64%(tcount+tskip_count)==0){\
- fprintf(stderr, "%Ld dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
-}
-#endif
-
-#define CLAMP_TO_8BIT(d) ((d > 0xff) ? 0xff : (d < 0) ? 0 : d)
-
-/* avoid usage of various functions */
-#define malloc please_use_av_malloc
-#define free please_use_av_free
-#define realloc please_use_av_realloc
-
-#define CHECKED_ALLOCZ(p, size)\
-{\
- p= av_mallocz(size);\
- if(p==NULL && (size)!=0){\
- perror("malloc");\
- goto fail;\
- }\
-}
-
-#endif /* HAVE_AV_CONFIG_H */
-
-#endif /* COMMON_H */
projects / synfig.git / blobdiff