+/**
+ * @file common.h
+ * common internal api header.
+ */
+
#ifndef COMMON_H
#define COMMON_H
-#define FFMPEG_VERSION_INT 0x000406
-#define FFMPEG_VERSION "0.4.6"
-
#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
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
#ifdef HAVE_AV_CONFIG_H
/* only include the following when compiling package */
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
+# include <ctype.h>
+# include <limits.h>
# ifndef __BEOS__
# include <errno.h>
# else
# define ENODATA 61
# 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)
+
#endif /* HAVE_AV_CONFIG_H */
/* Suppress restrict if it was not defined in config.h. */
# define restrict
#endif
+#ifndef always_inline
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
# define always_inline __attribute__((always_inline)) inline
#else
# define always_inline inline
#endif
+#endif
+
+#ifndef attribute_used
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+# define attribute_used __attribute__((used))
+#else
+# define attribute_used
+#endif
+#endif
+
+#ifndef attribute_unused
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+# define attribute_unused __attribute__((unused))
+#else
+# define attribute_unused
+#endif
+#endif
+
+#ifndef EMULATE_INTTYPES
+# include <inttypes.h>
+#else
+ typedef signed char int8_t;
+ typedef signed short int16_t;
+ typedef signed int int32_t;
+ typedef unsigned char uint8_t;
+ typedef unsigned short uint16_t;
+ typedef unsigned int uint32_t;
+
+# ifdef CONFIG_WIN32
+ typedef signed __int64 int64_t;
+ typedef unsigned __int64 uint64_t;
+# else /* other OS */
+ typedef signed long long int64_t;
+ typedef unsigned long long uint64_t;
+# endif /* other OS */
+#endif /* HAVE_INTTYPES_H */
+
+#ifndef INT16_MIN
+#define INT16_MIN (-0x7fff-1)
+#endif
+
+#ifndef INT16_MAX
+#define INT16_MAX 0x7fff
+#endif
+
+#ifndef INT64_MIN
+#define INT64_MIN (-0x7fffffffffffffffLL-1)
+#endif
+
+#ifndef INT64_MAX
+#define INT64_MAX int64_t_C(9223372036854775807)
+#endif
+
+#ifndef UINT64_MAX
+#define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
+#endif
+
+#ifdef EMULATE_FAST_INT
+/* note that we don't emulate 64bit ints */
+typedef signed char int_fast8_t;
+typedef signed int int_fast16_t;
+typedef signed int int_fast32_t;
+typedef unsigned char uint_fast8_t;
+typedef unsigned int uint_fast16_t;
+typedef unsigned int uint_fast32_t;
+#endif
+
+#ifndef INT_BIT
+# if INT_MAX != 2147483647
+# define INT_BIT 64
+# else
+# define INT_BIT 32
+# endif
+#endif
+
+#if defined(CONFIG_OS2) || defined(CONFIG_SUNOS)
+static inline float floorf(float f) {
+ return floor(f);
+}
+#endif
#ifdef CONFIG_WIN32
/* windows */
-typedef unsigned short UINT16;
-typedef signed short INT16;
-typedef unsigned char UINT8;
-typedef unsigned int UINT32;
-typedef unsigned __int64 UINT64;
-typedef signed char INT8;
-typedef signed int INT32;
-typedef signed __int64 INT64;
-
-typedef UINT8 uint8_t;
-typedef INT8 int8_t;
-typedef UINT16 uint16_t;
-typedef INT16 int16_t;
-typedef UINT32 uint32_t;
-typedef INT32 int32_t;
-typedef UINT64 uint64_t;
-typedef INT64 int64_t;
-
-# ifndef __MINGW32__
-# define INT64_C(c) (c ## i64)
-# define UINT64_C(c) (c ## i64)
-
-# define inline __inline
+# if !defined(__MINGW32__) && !defined(__CYGWIN__)
+# define int64_t_C(c) (c ## i64)
+# define uint64_t_C(c) (c ## i64)
+
+# ifdef HAVE_AV_CONFIG_H
+# define inline __inline
+# endif
# else
-# define INT64_C(c) (c ## LL)
-# define UINT64_C(c) (c ## ULL)
+# define int64_t_C(c) (c ## LL)
+# define uint64_t_C(c) (c ## ULL)
# endif /* __MINGW32__ */
-# define M_PI 3.14159265358979323846
-# define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
+# ifdef HAVE_AV_CONFIG_H
+# ifdef _DEBUG
+# define DEBUG
+# endif
-# ifdef _DEBUG
-# define DEBUG
+# define snprintf _snprintf
+# define vsnprintf _vsnprintf
# endif
-# define snprintf _snprintf
+/* CONFIG_WIN32 end */
+#elif defined (CONFIG_OS2)
+/* OS/2 EMX */
-#else /* CONFIG_WIN32 */
+#ifndef int64_t_C
+#define int64_t_C(c) (c ## LL)
+#define uint64_t_C(c) (c ## ULL)
+#endif
-/* unix */
+#ifdef HAVE_AV_CONFIG_H
-# include <inttypes.h>
+#ifdef USE_FASTMEMCPY
+#include "fastmemcpy.h"
+#endif
-# ifndef __WINE_WINDEF16_H
-/* workaround for typedef conflict in MPlayer (wine typedefs) */
-typedef unsigned short UINT16;
-typedef signed short INT16;
-# endif
+#include <float.h>
-typedef unsigned char UINT8;
-typedef unsigned int UINT32;
-typedef unsigned long long UINT64;
-typedef signed char INT8;
-typedef signed int INT32;
-typedef signed long long INT64;
+#endif /* HAVE_AV_CONFIG_H */
-# ifdef HAVE_AV_CONFIG_H
-# ifndef INT64_C
-# define INT64_C(c) (c ## LL)
-# define UINT64_C(c) (c ## ULL)
-# endif
+/* CONFIG_OS2 end */
+#else
+
+/* unix */
+
+#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 */
+#endif /* !CONFIG_WIN32 && !CONFIG_OS2 */
#ifdef HAVE_AV_CONFIG_H
# include "bswap.h"
+// Use rip-relative addressing if compiling PIC code on x86-64.
# if defined(__MINGW32__) || defined(__CYGWIN__) || \
- defined(__OS2__) || defined (__OpenBSD__)
-# define MANGLE(a) "_" #a
+ defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
+# if defined(ARCH_X86_64) && defined(PIC)
+# define MANGLE(a) "_" #a"(%%rip)"
+# else
+# define MANGLE(a) "_" #a
+# endif
# else
-# define MANGLE(a) #a
+# if defined(ARCH_X86_64) && defined(PIC)
+# define MANGLE(a) #a"(%%rip)"
+# else
+# define MANGLE(a) #a
+# endif
# endif
/* debug stuff */
# include <assert.h>
/* dprintf macros */
-# if defined(CONFIG_WIN32) && !defined(__MINGW32__)
+# if defined(CONFIG_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
inline void dprintf(const char* fmt,...) {}
# else
# ifdef DEBUG
-# define dprintf(fmt,args...) printf(fmt, ## args)
+# define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
# else
-# define dprintf(fmt,args...)
+# define dprintf(fmt,...)
# endif
# endif /* !CONFIG_WIN32 */
-# define av_abort() do { fprintf(stderr, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
+# define av_abort() do { av_log(NULL, AV_LOG_ERROR, "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))
+#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)))
-#ifndef MAX
-# define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
-#ifndef MIN
-# define MIN(a,b) ((a) > (b) ? (b) : (a))
-#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 *, int);
-
-typedef struct PutBitContext {
-#ifdef ALT_BITSTREAM_WRITER
- UINT8 *buf, *buf_end;
- int index;
-#else
- UINT32 bit_buf;
- int bit_left;
- UINT8 *buf, *buf_ptr, *buf_end;
-#endif
- INT64 data_out_size; /* in bytes */
-} PutBitContext;
-
-void init_put_bits(PutBitContext *s,
- UINT8 *buffer, int buffer_size,
- void *opaque,
- void (*write_data)(void *, UINT8 *, int));
-
-INT64 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 {
- UINT8 *buffer, *buffer_end;
-#ifdef ALT_BITSTREAM_READER
- int index;
-#elif defined LIBMPEG2_BITSTREAM_READER
- UINT8 *buffer_ptr;
- UINT32 cache;
- int bit_count;
-#elif defined A32_BITSTREAM_READER
- UINT32 *buffer_ptr;
- UINT32 cache0;
- UINT32 cache1;
- int bit_count;
-#endif
- int size;
-} GetBitContext;
-
-static inline int get_bits_count(GetBitContext *s);
-
-#define VLC_TYPE INT16
-
-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;
-
-/* used to avoid missaligned exceptions on some archs (alpha, ...) */
-#ifdef ARCH_X86
-# define unaligned32(a) (*(UINT32*)(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);
- *(UINT32 *)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
-*/
-
-#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= be2me_32( unaligned32( ((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 16
-
-# 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;\
-
-# 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;\
- }\
-
-# 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)\
- );
+#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
+#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+
+extern const uint32_t inverse[256];
+
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+# 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 SKIP_CACHE(name, gb, num)\
- name##_cache0 <<= (num);\
- name##_cache0 |= NEG_USR32(name##_cache1,num);\
- name##_cache1 <<= (num);
+# define FASTDIV(a,b) ((a)/(b))
#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
-
-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;
-}
-
-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;
-}
-
-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,
- UINT8 *buffer, int buffer_size);
-
-int check_marker(GetBitContext *s, 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);
-
-#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;
-}
-
-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 it to include statistics code (useful only for optimizing
codec efficiency */
//#define STATS
#endif
/* misc math functions */
+extern const uint8_t ff_log2_tab[256];
static inline int av_log2(unsigned int v)
{
v >>= 8;
n += 8;
}
- if (v & 0xf0) {
- v >>= 4;
- n += 4;
- }
- if (v & 0xc) {
- v >>= 2;
- n += 2;
- }
- if (v & 0x2) {
- n++;
+ 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;
+#if 0
+ int t= (a-b)&((a-b)>>31);
+ a-=t;
+ b+=t;
+ b-= (b-c)&((b-c)>>31);
+ b+= (a-b)&((a-b)>>31);
+
+ return b;
+#else
+ if(a>b){
+ if(c>b){
+ if(c>a) b=a;
+ else b=c;
+ }
+ }else{
+ if(b>c){
+ if(c>a) b=c;
+ else b=a;
+ }
+ }
+ return b;
+#endif
}
static inline int clip(int a, int amin, int amax)
return a;
}
+static inline int clip_uint8(int a)
+{
+ if (a&(~255)) return (-a)>>31;
+ else return a;
+}
+
/* math */
-extern const UINT8 ff_sqrt_tab[128];
+extern const uint8_t ff_sqrt_tab[128];
-int ff_gcd(int a, int b);
+int64_t ff_gcd(int64_t a, int64_t b);
static inline int ff_sqrt(int a)
{
/**
* converts fourcc string to int
*/
-static inline int ff_get_fourcc(char *s){
+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))
-#ifdef ARCH_X86
+
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
#define MASK_ABS(mask, level)\
asm volatile(\
"cdq \n\t"\
}
#endif
-#define CLAMP_TO_8BIT(d) ((d > 0xff) ? 0xff : (d < 0) ? 0 : d)
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+#if defined(ARCH_X86_64)
+static inline uint64_t rdtsc(void)
+{
+ uint64_t a, d;
+ asm volatile( "rdtsc\n\t"
+ : "=a" (a), "=d" (d)
+ );
+ return (d << 32) | (a & 0xffffffff);
+}
+#else
+static inline long long rdtsc(void)
+{
+ long long l;
+ asm volatile( "rdtsc\n\t"
+ : "=A" (l)
+ );
+ return l;
+}
+#endif
+
+#define START_TIMER \
+uint64_t tend;\
+uint64_t tstart= rdtsc();\
+
+#define STOP_TIMER(id) \
+tend= rdtsc();\
+{\
+ static uint64_t tsum=0;\
+ static int tcount=0;\
+ static int tskip_count=0;\
+ if(tcount<2 || tend - tstart < 8*tsum/tcount){\
+ tsum+= tend - tstart;\
+ tcount++;\
+ }else\
+ tskip_count++;\
+ if(256*256*256*64%(tcount+tskip_count)==0){\
+ av_log(NULL, AV_LOG_DEBUG, "%Ld dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
+ }\
+}
+#else
+#define START_TIMER
+#define STOP_TIMER(id) {}
+#endif
+
+/* avoid usage of various functions */
+#define malloc please_use_av_malloc
+#define free please_use_av_free
+#define realloc please_use_av_realloc
+#define time time_is_forbidden_due_to_security_issues
+#define rand rand_is_forbidden_due_to_state_trashing
+#define srand srand_is_forbidden_due_to_state_trashing
+#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
+#define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
+#if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
+#define printf please_use_av_log
+#define fprintf please_use_av_log
+#endif
+
+#define CHECKED_ALLOCZ(p, size)\
+{\
+ p= av_mallocz(size);\
+ if(p==NULL && (size)!=0){\
+ perror("malloc");\
+ goto fail;\
+ }\
+}
#endif /* HAVE_AV_CONFIG_H */
projects / ffmpeg / blobdiff