ffmpeg-3.4.8-single-header.h

Go to the documentation of this file.

// This header was generated from the FFMPEG headers
#pragma once
 
#include <math.h>
#include <stdarg.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <time.h>
#include <limits.h>
#include <stdio.h>
#include <stddef.h>
 
#define AVCODEC_AVCODEC_H
 
#define AVUTIL_SAMPLEFMT_H
 
#define AVUTIL_AVUTIL_H
 
unsigned avutil_version(void);
 
const char *av_version_info(void);
 
const char *avutil_configuration(void);
 
const char *avutil_license(void);
 
enum AVMediaType {
    AVMEDIA_TYPE_UNKNOWN = -1,  
    AVMEDIA_TYPE_VIDEO,
    AVMEDIA_TYPE_AUDIO,
    AVMEDIA_TYPE_DATA,          
    AVMEDIA_TYPE_SUBTITLE,
    AVMEDIA_TYPE_ATTACHMENT,    
    AVMEDIA_TYPE_NB
};
 
const char *av_get_media_type_string(enum AVMediaType media_type);
 
#define FF_LAMBDA_SHIFT 7
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
#define FF_QP2LAMBDA 118 
#define FF_LAMBDA_MAX (256*128-1)
 
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE 
 
#define AV_NOPTS_VALUE          ((int64_t)UINT64_C(0x8000000000000000))
 
#define AV_TIME_BASE            1000000
 
#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}
 
enum AVPictureType {
    AV_PICTURE_TYPE_NONE = 0, 
    AV_PICTURE_TYPE_I,     
    AV_PICTURE_TYPE_P,     
    AV_PICTURE_TYPE_B,     
    AV_PICTURE_TYPE_S,     
    AV_PICTURE_TYPE_SI,    
    AV_PICTURE_TYPE_SP,    
    AV_PICTURE_TYPE_BI,    
};
 
char av_get_picture_type_char(enum AVPictureType pict_type);
 
#define AVUTIL_COMMON_H
 
#define AVUTIL_ATTRIBUTES_H
 
#    define AV_GCC_VERSION_AT_LEAST(x,y) 0
#    define AV_GCC_VERSION_AT_MOST(x,y)  0
 
#    define av_always_inline inline
 
#    define av_extern_inline inline
 
#    define av_warn_unused_result
 
#    define av_noinline
 
#    define av_pure
 
#    define av_const
 
#    define av_cold
 
#    define av_flatten
 
#    define attribute_deprecated
 
#    define AV_NOWARN_DEPRECATED(code) code
 
#    define av_unused
 
#    define av_used
 
#   define av_alias
 
#    define av_uninit(x) x
 
#    define av_builtin_constant_p(x) 0
#    define av_printf_format(fmtpos, attrpos)
 
#    define av_noreturn
 
#define AVUTIL_MACROS_H
 
#define AV_STRINGIFY(s)         AV_TOSTRING(s)
#define AV_TOSTRING(s) #s
 
#define AV_GLUE(a, b) a ## b
#define AV_JOIN(a, b) AV_GLUE(a, b)
 
#define AV_PRAGMA(s) _Pragma(#s)
 
#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
 
#define AVUTIL_VERSION_H
 
#define AV_VERSION_INT(a, b, c) ((a)<<16 | (b)<<8 | (c))
#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
#define AV_VERSION_MAJOR(a) ((a) >> 16)
#define AV_VERSION_MINOR(a) (((a) & 0x00FF00) >> 8)
#define AV_VERSION_MICRO(a) ((a) & 0xFF)
 
#define LIBAVUTIL_VERSION_MAJOR  55
#define LIBAVUTIL_VERSION_MINOR  78
#define LIBAVUTIL_VERSION_MICRO 100
 
#define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                               LIBAVUTIL_VERSION_MINOR, \
                                               LIBAVUTIL_VERSION_MICRO)
#define LIBAVUTIL_VERSION       AV_VERSION(LIBAVUTIL_VERSION_MAJOR,     \
                                           LIBAVUTIL_VERSION_MINOR,     \
                                           LIBAVUTIL_VERSION_MICRO)
#define LIBAVUTIL_BUILD         LIBAVUTIL_VERSION_INT
 
#define LIBAVUTIL_IDENT         "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
 
#define FF_API_VDPAU                    (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_XVMC                     (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_OPT_TYPE_METADATA        (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_DLOG                     (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_VAAPI                    (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_FRAME_QP                 (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_PLUS1_MINUS1             (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_ERROR_FRAME              (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_CRC_BIG_TABLE            (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_PKT_PTS                  (LIBAVUTIL_VERSION_MAJOR < 56)
#define FF_API_CRYPTO_SIZE_T            (LIBAVUTIL_VERSION_MAJOR < 56)
 
#   define AV_NE(be, le) (le)
 
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
 
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
 
#define AV_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \
                                                       : ((a) + (1<<(b)) - 1) >> (b))
 
#define FF_CEIL_RSHIFT AV_CEIL_RSHIFT
 
#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
 
#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
#define FFSIGN(a) ((a) > 0 ? 1 : -1)
 
#define FFNABS(a) ((a) <= 0 ? (a) : (-(a)))
 
#define FFDIFFSIGN(x,y) (((x)>(y)) - ((x)<(y)))
 
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
 
#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
 
#   define av_ceil_log2     av_ceil_log2_c
#   define av_clip          av_clip_c
#   define av_clip64        av_clip64_c
#   define av_clip_uint8    av_clip_uint8_c
#   define av_clip_int8     av_clip_int8_c
#   define av_clip_uint16   av_clip_uint16_c
#   define av_clip_int16    av_clip_int16_c
#   define av_clipl_int32   av_clipl_int32_c
#   define av_clip_intp2    av_clip_intp2_c
#   define av_clip_uintp2   av_clip_uintp2_c
#   define av_mod_uintp2    av_mod_uintp2_c
#   define av_sat_add32     av_sat_add32_c
#   define av_sat_dadd32    av_sat_dadd32_c
#   define av_clipf         av_clipf_c
#   define av_clipd         av_clipd_c
#   define av_popcount      av_popcount_c
#   define av_popcount64    av_popcount64_c
#   define av_parity        av_parity_c
 
av_const int av_log2(unsigned v);
 
av_const int av_log2_16bit(unsigned v);
 
static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
{
    if      (a < amin) return amin;
    else if (a > amax) return amax;
    else               return a;
}
 
static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
{
    if      (a < amin) return amin;
    else if (a > amax) return amax;
    else               return a;
}
 
static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
{
    if (a&(~0xFF)) return (~a)>>31;
    else           return a;
}
 
static av_always_inline av_const int8_t av_clip_int8_c(int a)
{
    if ((a+0x80U) & ~0xFF) return (a>>31) ^ 0x7F;
    else                  return a;
}
 
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
{
    if (a&(~0xFFFF)) return (~a)>>31;
    else             return a;
}
 
static av_always_inline av_const int16_t av_clip_int16_c(int a)
{
    if ((a+0x8000U) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
    else                      return a;
}
 
static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
{
    if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (int32_t)((a>>63) ^ 0x7FFFFFFF);
    else                                         return (int32_t)a;
}
 
static av_always_inline av_const int av_clip_intp2_c(int a, int p)
{
    if (((unsigned)a + (1 << p)) & ~((2 << p) - 1))
        return (a >> 31) ^ ((1 << p) - 1);
    else
        return a;
}
 
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
{
    if (a & ~((1<<p) - 1)) return (~a) >> 31 & ((1<<p) - 1);
    else                   return  a;
}
 
static av_always_inline av_const unsigned av_mod_uintp2_c(unsigned a, unsigned p)
{
    return a & ((1 << p) - 1);
}
 
static av_always_inline int av_sat_add32_c(int a, int b)
{
    return av_clipl_int32((int64_t)a + b);
}
 
static av_always_inline int av_sat_dadd32_c(int a, int b)
{
    return av_sat_add32(a, av_sat_add32(b, b));
}
 
static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
{
    if      (a < amin) return amin;
    else if (a > amax) return amax;
    else               return a;
}
 
static av_always_inline av_const double av_clipd_c(double a, double amin, double amax)
{
    if      (a < amin) return amin;
    else if (a > amax) return amax;
    else               return a;
}
 
static av_always_inline av_const int av_ceil_log2_c(int x)
{
    return av_log2((x - 1U) << 1);
}
 
static av_always_inline av_const int av_popcount_c(uint32_t x)
{
    x -= (x >> 1) & 0x55555555;
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
    x = (x + (x >> 4)) & 0x0F0F0F0F;
    x += x >> 8;
    return (x + (x >> 16)) & 0x3F;
}
 
static av_always_inline av_const int av_popcount64_c(uint64_t x)
{
    return av_popcount((uint32_t)x) + av_popcount((uint32_t)(x >> 32));
}
 
static av_always_inline av_const int av_parity_c(uint32_t v)
{
    return av_popcount(v) & 1;
}
 
#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24))
 
#define GET_UTF8(val, GET_BYTE, ERROR)\
    val= (GET_BYTE);\
    {\
        uint32_t top = (val & 128) >> 1;\
        if ((val & 0xc0) == 0x80 || val >= 0xFE)\
            ERROR\
        while (val & top) {\
            int tmp= (GET_BYTE) - 128;\
            if(tmp>>6)\
                ERROR\
            val= (val<<6) + tmp;\
            top <<= 5;\
        }\
        val &= (top << 1) - 1;\
    }
 
#define GET_UTF16(val, GET_16BIT, ERROR)\
    val = GET_16BIT;\
    {\
        unsigned int hi = val - 0xD800;\
        if (hi < 0x800) {\
            val = GET_16BIT - 0xDC00;\
            if (val > 0x3FFU || hi > 0x3FFU)\
                ERROR\
            val += (hi<<10) + 0x10000;\
        }\
    }\
 
#define PUT_UTF8(val, tmp, PUT_BYTE)\
    {\
        int bytes, shift;\
        uint32_t in = val;\
        if (in < 0x80) {\
            tmp = in;\
            PUT_BYTE\
        } else {\
            bytes = (av_log2(in) + 4) / 5;\
            shift = (bytes - 1) * 6;\
            tmp = (256 - (256 >> bytes)) | (in >> shift);\
            PUT_BYTE\
            while (shift >= 6) {\
                shift -= 6;\
                tmp = 0x80 | ((in >> shift) & 0x3f);\
                PUT_BYTE\
            }\
        }\
    }
 
#define PUT_UTF16(val, tmp, PUT_16BIT)\
    {\
        uint32_t in = val;\
        if (in < 0x10000) {\
            tmp = in;\
            PUT_16BIT\
        } else {\
            tmp = 0xD800 | ((in - 0x10000) >> 10);\
            PUT_16BIT\
            tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
            PUT_16BIT\
        }\
    }\
 
#define AVUTIL_MEM_H
 
#define AVUTIL_ERROR_H
 
#define AVERROR(e) (e)
#define AVUNERROR(e) (e)
 
#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d))
 
#define AVERROR_BSF_NOT_FOUND      FFERRTAG(0xF8,'B','S','F') 
#define AVERROR_BUG                FFERRTAG( 'B','U','G','!') 
#define AVERROR_BUFFER_TOO_SMALL   FFERRTAG( 'B','U','F','S') 
#define AVERROR_DECODER_NOT_FOUND  FFERRTAG(0xF8,'D','E','C') 
#define AVERROR_DEMUXER_NOT_FOUND  FFERRTAG(0xF8,'D','E','M') 
#define AVERROR_ENCODER_NOT_FOUND  FFERRTAG(0xF8,'E','N','C') 
#define AVERROR_EOF                FFERRTAG( 'E','O','F',' ') 
#define AVERROR_EXIT               FFERRTAG( 'E','X','I','T') 
#define AVERROR_EXTERNAL           FFERRTAG( 'E','X','T',' ') 
#define AVERROR_FILTER_NOT_FOUND   FFERRTAG(0xF8,'F','I','L') 
#define AVERROR_INVALIDDATA        FFERRTAG( 'I','N','D','A') 
#define AVERROR_MUXER_NOT_FOUND    FFERRTAG(0xF8,'M','U','X') 
#define AVERROR_OPTION_NOT_FOUND   FFERRTAG(0xF8,'O','P','T') 
#define AVERROR_PATCHWELCOME       FFERRTAG( 'P','A','W','E') 
#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') 
 
#define AVERROR_STREAM_NOT_FOUND   FFERRTAG(0xF8,'S','T','R') 
 
#define AVERROR_BUG2               FFERRTAG( 'B','U','G',' ')
#define AVERROR_UNKNOWN            FFERRTAG( 'U','N','K','N') 
#define AVERROR_EXPERIMENTAL       (-0x2bb2afa8) 
#define AVERROR_INPUT_CHANGED      (-0x636e6701) 
#define AVERROR_OUTPUT_CHANGED     (-0x636e6702) 
 
#define AVERROR_HTTP_BAD_REQUEST   FFERRTAG(0xF8,'4','0','0')
#define AVERROR_HTTP_UNAUTHORIZED  FFERRTAG(0xF8,'4','0','1')
#define AVERROR_HTTP_FORBIDDEN     FFERRTAG(0xF8,'4','0','3')
#define AVERROR_HTTP_NOT_FOUND     FFERRTAG(0xF8,'4','0','4')
#define AVERROR_HTTP_OTHER_4XX     FFERRTAG(0xF8,'4','X','X')
#define AVERROR_HTTP_SERVER_ERROR  FFERRTAG(0xF8,'5','X','X')
 
#define AV_ERROR_MAX_STRING_SIZE 64
 
int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
 
static inline char *av_make_error_string(char *errbuf, size_t errbuf_size, int errnum)
{
    av_strerror(errnum, errbuf, errbuf_size);
    return errbuf;
}
 
#define av_err2str(errnum) \
    av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0}, AV_ERROR_MAX_STRING_SIZE, errnum)
 
    #define DECLARE_ALIGNED(n,t,v)      t v
    #define DECLARE_ASM_CONST(n,t,v)    static const t v
 
    #define av_malloc_attrib
 
    #define av_alloc_size(...)
 
void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
 
void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
 
av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t size)
{
    if (!size || nmemb >= INT_MAX / size)
        return NULL;
    return av_malloc(nmemb * size);
}
 
av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size)
{
    if (!size || nmemb >= INT_MAX / size)
        return NULL;
    return av_mallocz(nmemb * size);
}
 
void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib;
 
void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
 
av_warn_unused_result
int av_reallocp(void *ptr, size_t size);
 
void *av_realloc_f(void *ptr, size_t nelem, size_t elsize);
 
av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size);
 
int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
 
void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
 
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
 
void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size);
 
void av_free(void *ptr);
 
void av_freep(void *ptr);
 
char *av_strdup(const char *s) av_malloc_attrib;
 
char *av_strndup(const char *s, size_t len) av_malloc_attrib;
 
void *av_memdup(const void *p, size_t size);
 
void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
 
void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem);
 
av_warn_unused_result
int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem);
 
void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size,
                       const uint8_t *elem_data);
 
static inline int av_size_mult(size_t a, size_t b, size_t *r)
{
    size_t t = a * b;
    
    if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b)
        return AVERROR(EINVAL);
    *r = t;
    return 0;
}
 
void av_max_alloc(size_t max);
 
#define AVUTIL_RATIONAL_H
 
typedef struct AVRational{
    int num; 
    int den; 
} AVRational;
 
static inline AVRational av_make_q(int num, int den)
{
    AVRational r = { num, den };
    return r;
}
 
static inline int av_cmp_q(AVRational a, AVRational b){
    const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;
 
    if(tmp) return (int)((tmp ^ a.den ^ b.den)>>63)|1;
    else if(b.den && a.den) return 0;
    else if(a.num && b.num) return (a.num>>31) - (b.num>>31);
    else                    return INT_MIN;
}
 
static inline double av_q2d(AVRational a){
    return a.num / (double) a.den;
}
 
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max);
 
AVRational av_mul_q(AVRational b, AVRational c) av_const;
 
AVRational av_div_q(AVRational b, AVRational c) av_const;
 
AVRational av_add_q(AVRational b, AVRational c) av_const;
 
AVRational av_sub_q(AVRational b, AVRational c) av_const;
 
static av_always_inline AVRational av_inv_q(AVRational q)
{
    AVRational r = { q.den, q.num };
    return r;
}
 
AVRational av_d2q(double d, int max) av_const;
 
int av_nearer_q(AVRational q, AVRational q1, AVRational q2);
 
int av_find_nearest_q_idx(AVRational q, const AVRational* q_list);
 
uint32_t av_q2intfloat(AVRational q);
 
#define AVUTIL_MATHEMATICS_H
 
#define AVUTIL_INTFLOAT_H
 
union av_intfloat32 {
    uint32_t i;
    float    f;
};
 
union av_intfloat64 {
    uint64_t i;
    double   f;
};
 
static av_always_inline float av_int2float(uint32_t i)
{
    union av_intfloat32 v;
    v.i = i;
    return v.f;
}
 
static av_always_inline uint32_t av_float2int(float f)
{
    union av_intfloat32 v;
    v.f = f;
    return v.i;
}
 
static av_always_inline double av_int2double(uint64_t i)
{
    union av_intfloat64 v;
    v.i = i;
    return v.f;
}
 
static av_always_inline uint64_t av_double2int(double f)
{
    union av_intfloat64 v;
    v.f = f;
    return v.i;
}
 
#define M_E            2.7182818284590452354   
#define M_LN2          0.69314718055994530942  
#define M_LN10         2.30258509299404568402  
#define M_LOG2_10      3.32192809488736234787  
#define M_PHI          1.61803398874989484820   
#define M_PI           3.14159265358979323846  
#define M_PI_2         1.57079632679489661923  
#define M_SQRT1_2      0.70710678118654752440  
#define M_SQRT2        1.41421356237309504880  
#define NAN            av_int2float(0x7fc00000)
#define INFINITY       av_int2float(0x7f800000)
 
enum AVRounding {
    AV_ROUND_ZERO     = 0, 
    AV_ROUND_INF      = 1, 
    AV_ROUND_DOWN     = 2, 
    AV_ROUND_UP       = 3, 
    AV_ROUND_NEAR_INF = 5, 
    
    AV_ROUND_PASS_MINMAX = 8192,
};
 
int64_t av_const av_gcd(int64_t a, int64_t b);
 
int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
 
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd) av_const;
 
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
 
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
                         enum AVRounding rnd) av_const;
 
int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
 
int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
 
int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts,  AVRational fs_tb, int duration, int64_t *last, AVRational out_tb);
 
int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc);
 
#define AVUTIL_LOG_H
 
typedef enum {
    AV_CLASS_CATEGORY_NA = 0,
    AV_CLASS_CATEGORY_INPUT,
    AV_CLASS_CATEGORY_OUTPUT,
    AV_CLASS_CATEGORY_MUXER,
    AV_CLASS_CATEGORY_DEMUXER,
    AV_CLASS_CATEGORY_ENCODER,
    AV_CLASS_CATEGORY_DECODER,
    AV_CLASS_CATEGORY_FILTER,
    AV_CLASS_CATEGORY_BITSTREAM_FILTER,
    AV_CLASS_CATEGORY_SWSCALER,
    AV_CLASS_CATEGORY_SWRESAMPLER,
    AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT = 40,
    AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
    AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
    AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
    AV_CLASS_CATEGORY_DEVICE_OUTPUT,
    AV_CLASS_CATEGORY_DEVICE_INPUT,
    AV_CLASS_CATEGORY_NB  
}AVClassCategory;
 
#define AV_IS_INPUT_DEVICE(category) \
    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_INPUT))
 
#define AV_IS_OUTPUT_DEVICE(category) \
    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_OUTPUT))
 
struct AVOptionRanges;
 
typedef struct AVClass {
    
    const char* class_name;
 
    const char* (*item_name)(void* ctx);
 
    const struct AVOption *option;
 
    int version;
 
    int log_level_offset_offset;
 
    int parent_log_context_offset;
 
    void* (*child_next)(void *obj, void *prev);
 
    const struct AVClass* (*child_class_next)(const struct AVClass *prev);
 
    AVClassCategory category;
 
    AVClassCategory (*get_category)(void* ctx);
 
    int (*query_ranges)(struct AVOptionRanges **, void *obj, const char *key, int flags);
} AVClass;
 
#define AV_LOG_QUIET    -8
 
#define AV_LOG_PANIC     0
 
#define AV_LOG_FATAL     8
 
#define AV_LOG_ERROR    16
 
#define AV_LOG_WARNING  24
 
#define AV_LOG_INFO     32
 
#define AV_LOG_VERBOSE  40
 
#define AV_LOG_DEBUG    48
 
#define AV_LOG_TRACE    56
 
#define AV_LOG_MAX_OFFSET (AV_LOG_TRACE - AV_LOG_QUIET)
 
#define AV_LOG_C(x) ((x) << 8)
 
void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4);
 
void av_vlog(void *avcl, int level, const char *fmt, va_list vl);
 
int av_log_get_level(void);
 
void av_log_set_level(int level);
 
void av_log_set_callback(void (*callback)(void*, int, const char*, va_list));
 
void av_log_default_callback(void *avcl, int level, const char *fmt,
                             va_list vl);
 
const char* av_default_item_name(void* ctx);
AVClassCategory av_default_get_category(void *ptr);
 
void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
                        char *line, int line_size, int *print_prefix);
 
int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
                        char *line, int line_size, int *print_prefix);
 
#    define av_dlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
 
#define AV_LOG_SKIP_REPEATED 1
 
#define AV_LOG_PRINT_LEVEL 2
 
void av_log_set_flags(int arg);
int av_log_get_flags(void);
 
#define AVUTIL_PIXFMT_H
 
#define AVPALETTE_SIZE 1024
#define AVPALETTE_COUNT 256
 
enum AVPixelFormat {
    AV_PIX_FMT_NONE = -1,
    AV_PIX_FMT_YUV420P,   
    AV_PIX_FMT_YUYV422,   
    AV_PIX_FMT_RGB24,     
    AV_PIX_FMT_BGR24,     
    AV_PIX_FMT_YUV422P,   
    AV_PIX_FMT_YUV444P,   
    AV_PIX_FMT_YUV410P,   
    AV_PIX_FMT_YUV411P,   
    AV_PIX_FMT_GRAY8,     
    AV_PIX_FMT_MONOWHITE, 
    AV_PIX_FMT_MONOBLACK, 
    AV_PIX_FMT_PAL8,      
    AV_PIX_FMT_YUVJ420P,  
    AV_PIX_FMT_YUVJ422P,  
    AV_PIX_FMT_YUVJ444P,  
    AV_PIX_FMT_XVMC_MPEG2_MC,
    AV_PIX_FMT_XVMC_MPEG2_IDCT,
    AV_PIX_FMT_XVMC = AV_PIX_FMT_XVMC_MPEG2_IDCT,
    AV_PIX_FMT_UYVY422,   
    AV_PIX_FMT_UYYVYY411, 
    AV_PIX_FMT_BGR8,      
    AV_PIX_FMT_BGR4,      
    AV_PIX_FMT_BGR4_BYTE, 
    AV_PIX_FMT_RGB8,      
    AV_PIX_FMT_RGB4,      
    AV_PIX_FMT_RGB4_BYTE, 
    AV_PIX_FMT_NV12,      
    AV_PIX_FMT_NV21,      
 
    AV_PIX_FMT_ARGB,      
    AV_PIX_FMT_RGBA,      
    AV_PIX_FMT_ABGR,      
    AV_PIX_FMT_BGRA,      
 
    AV_PIX_FMT_GRAY16BE,  
    AV_PIX_FMT_GRAY16LE,  
    AV_PIX_FMT_YUV440P,   
    AV_PIX_FMT_YUVJ440P,  
    AV_PIX_FMT_YUVA420P,  
    AV_PIX_FMT_VDPAU_H264,
    AV_PIX_FMT_VDPAU_MPEG1,
    AV_PIX_FMT_VDPAU_MPEG2,
    AV_PIX_FMT_VDPAU_WMV3,
    AV_PIX_FMT_VDPAU_VC1, 
    AV_PIX_FMT_RGB48BE,   
    AV_PIX_FMT_RGB48LE,   
 
    AV_PIX_FMT_RGB565BE,  
    AV_PIX_FMT_RGB565LE,  
    AV_PIX_FMT_RGB555BE,  
    AV_PIX_FMT_RGB555LE,  
 
    AV_PIX_FMT_BGR565BE,  
    AV_PIX_FMT_BGR565LE,  
    AV_PIX_FMT_BGR555BE,  
    AV_PIX_FMT_BGR555LE,  
 
    AV_PIX_FMT_VAAPI_MOCO, 
    AV_PIX_FMT_VAAPI_IDCT, 
    AV_PIX_FMT_VAAPI_VLD,  
    
    AV_PIX_FMT_VAAPI = AV_PIX_FMT_VAAPI_VLD,
 
    AV_PIX_FMT_YUV420P16LE,  
    AV_PIX_FMT_YUV420P16BE,  
    AV_PIX_FMT_YUV422P16LE,  
    AV_PIX_FMT_YUV422P16BE,  
    AV_PIX_FMT_YUV444P16LE,  
    AV_PIX_FMT_YUV444P16BE,  
    AV_PIX_FMT_VDPAU_MPEG4,  
    AV_PIX_FMT_DXVA2_VLD,    
 
    AV_PIX_FMT_RGB444LE,  
    AV_PIX_FMT_RGB444BE,  
    AV_PIX_FMT_BGR444LE,  
    AV_PIX_FMT_BGR444BE,  
    AV_PIX_FMT_YA8,       
 
    AV_PIX_FMT_Y400A = AV_PIX_FMT_YA8, 
    AV_PIX_FMT_GRAY8A= AV_PIX_FMT_YA8, 
 
    AV_PIX_FMT_BGR48BE,   
    AV_PIX_FMT_BGR48LE,   
 
    AV_PIX_FMT_YUV420P9BE, 
    AV_PIX_FMT_YUV420P9LE, 
    AV_PIX_FMT_YUV420P10BE,
    AV_PIX_FMT_YUV420P10LE,
    AV_PIX_FMT_YUV422P10BE,
    AV_PIX_FMT_YUV422P10LE,
    AV_PIX_FMT_YUV444P9BE, 
    AV_PIX_FMT_YUV444P9LE, 
    AV_PIX_FMT_YUV444P10BE,
    AV_PIX_FMT_YUV444P10LE,
    AV_PIX_FMT_YUV422P9BE, 
    AV_PIX_FMT_YUV422P9LE, 
    AV_PIX_FMT_VDA_VLD,    
    AV_PIX_FMT_GBRP,      
    AV_PIX_FMT_GBR24P = AV_PIX_FMT_GBRP, 
    AV_PIX_FMT_GBRP9BE,   
    AV_PIX_FMT_GBRP9LE,   
    AV_PIX_FMT_GBRP10BE,  
    AV_PIX_FMT_GBRP10LE,  
    AV_PIX_FMT_GBRP16BE,  
    AV_PIX_FMT_GBRP16LE,  
    AV_PIX_FMT_YUVA422P,  
    AV_PIX_FMT_YUVA444P,  
    AV_PIX_FMT_YUVA420P9BE,  
    AV_PIX_FMT_YUVA420P9LE,  
    AV_PIX_FMT_YUVA422P9BE,  
    AV_PIX_FMT_YUVA422P9LE,  
    AV_PIX_FMT_YUVA444P9BE,  
    AV_PIX_FMT_YUVA444P9LE,  
    AV_PIX_FMT_YUVA420P10BE, 
    AV_PIX_FMT_YUVA420P10LE, 
    AV_PIX_FMT_YUVA422P10BE, 
    AV_PIX_FMT_YUVA422P10LE, 
    AV_PIX_FMT_YUVA444P10BE, 
    AV_PIX_FMT_YUVA444P10LE, 
    AV_PIX_FMT_YUVA420P16BE, 
    AV_PIX_FMT_YUVA420P16LE, 
    AV_PIX_FMT_YUVA422P16BE, 
    AV_PIX_FMT_YUVA422P16LE, 
    AV_PIX_FMT_YUVA444P16BE, 
    AV_PIX_FMT_YUVA444P16LE, 
 
    AV_PIX_FMT_VDPAU,     
 
    AV_PIX_FMT_XYZ12LE,      
    AV_PIX_FMT_XYZ12BE,      
    AV_PIX_FMT_NV16,         
    AV_PIX_FMT_NV20LE,       
    AV_PIX_FMT_NV20BE,       
 
    AV_PIX_FMT_RGBA64BE,     
    AV_PIX_FMT_RGBA64LE,     
    AV_PIX_FMT_BGRA64BE,     
    AV_PIX_FMT_BGRA64LE,     
 
    AV_PIX_FMT_YVYU422,   
 
    AV_PIX_FMT_VDA,          
 
    AV_PIX_FMT_YA16BE,       
    AV_PIX_FMT_YA16LE,       
 
    AV_PIX_FMT_GBRAP,        
    AV_PIX_FMT_GBRAP16BE,    
    AV_PIX_FMT_GBRAP16LE,    
    
    AV_PIX_FMT_QSV,
    
    AV_PIX_FMT_MMAL,
 
    AV_PIX_FMT_D3D11VA_VLD,  
 
    AV_PIX_FMT_CUDA,
 
    AV_PIX_FMT_0RGB=0x123+4,
    AV_PIX_FMT_RGB0,        
    AV_PIX_FMT_0BGR,        
    AV_PIX_FMT_BGR0,        
 
    AV_PIX_FMT_YUV420P12BE, 
    AV_PIX_FMT_YUV420P12LE, 
    AV_PIX_FMT_YUV420P14BE, 
    AV_PIX_FMT_YUV420P14LE, 
    AV_PIX_FMT_YUV422P12BE, 
    AV_PIX_FMT_YUV422P12LE, 
    AV_PIX_FMT_YUV422P14BE, 
    AV_PIX_FMT_YUV422P14LE, 
    AV_PIX_FMT_YUV444P12BE, 
    AV_PIX_FMT_YUV444P12LE, 
    AV_PIX_FMT_YUV444P14BE, 
    AV_PIX_FMT_YUV444P14LE, 
    AV_PIX_FMT_GBRP12BE,    
    AV_PIX_FMT_GBRP12LE,    
    AV_PIX_FMT_GBRP14BE,    
    AV_PIX_FMT_GBRP14LE,    
    AV_PIX_FMT_YUVJ411P,    
 
    AV_PIX_FMT_BAYER_BGGR8,    
    AV_PIX_FMT_BAYER_RGGB8,    
    AV_PIX_FMT_BAYER_GBRG8,    
    AV_PIX_FMT_BAYER_GRBG8,    
    AV_PIX_FMT_BAYER_BGGR16LE, 
    AV_PIX_FMT_BAYER_BGGR16BE, 
    AV_PIX_FMT_BAYER_RGGB16LE, 
    AV_PIX_FMT_BAYER_RGGB16BE, 
    AV_PIX_FMT_BAYER_GBRG16LE, 
    AV_PIX_FMT_BAYER_GBRG16BE, 
    AV_PIX_FMT_BAYER_GRBG16LE, 
    AV_PIX_FMT_BAYER_GRBG16BE, 
    AV_PIX_FMT_YUV440P10LE, 
    AV_PIX_FMT_YUV440P10BE, 
    AV_PIX_FMT_YUV440P12LE, 
    AV_PIX_FMT_YUV440P12BE, 
    AV_PIX_FMT_AYUV64LE,    
    AV_PIX_FMT_AYUV64BE,    
 
    AV_PIX_FMT_VIDEOTOOLBOX, 
 
    AV_PIX_FMT_P010LE, 
    AV_PIX_FMT_P010BE, 
 
    AV_PIX_FMT_GBRAP12BE,  
    AV_PIX_FMT_GBRAP12LE,  
 
    AV_PIX_FMT_GBRAP10BE,  
    AV_PIX_FMT_GBRAP10LE,  
 
    AV_PIX_FMT_MEDIACODEC, 
 
    AV_PIX_FMT_GRAY12BE,   
    AV_PIX_FMT_GRAY12LE,   
    AV_PIX_FMT_GRAY10BE,   
    AV_PIX_FMT_GRAY10LE,   
 
    AV_PIX_FMT_P016LE, 
    AV_PIX_FMT_P016BE, 
 
    AV_PIX_FMT_D3D11,
 
    AV_PIX_FMT_GRAY9BE,   
    AV_PIX_FMT_GRAY9LE,   
 
    AV_PIX_FMT_GBRPF32BE,  
    AV_PIX_FMT_GBRPF32LE,  
    AV_PIX_FMT_GBRAPF32BE, 
    AV_PIX_FMT_GBRAPF32LE, 
 
    AV_PIX_FMT_DRM_PRIME,
 
    AV_PIX_FMT_NB         
};
 
#   define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##le
 
#define AV_PIX_FMT_RGB32   AV_PIX_FMT_NE(ARGB, BGRA)
#define AV_PIX_FMT_RGB32_1 AV_PIX_FMT_NE(RGBA, ABGR)
#define AV_PIX_FMT_BGR32   AV_PIX_FMT_NE(ABGR, RGBA)
#define AV_PIX_FMT_BGR32_1 AV_PIX_FMT_NE(BGRA, ARGB)
#define AV_PIX_FMT_0RGB32  AV_PIX_FMT_NE(0RGB, BGR0)
#define AV_PIX_FMT_0BGR32  AV_PIX_FMT_NE(0BGR, RGB0)
 
#define AV_PIX_FMT_GRAY9  AV_PIX_FMT_NE(GRAY9BE,  GRAY9LE)
#define AV_PIX_FMT_GRAY10 AV_PIX_FMT_NE(GRAY10BE, GRAY10LE)
#define AV_PIX_FMT_GRAY12 AV_PIX_FMT_NE(GRAY12BE, GRAY12LE)
#define AV_PIX_FMT_GRAY16 AV_PIX_FMT_NE(GRAY16BE, GRAY16LE)
#define AV_PIX_FMT_YA16   AV_PIX_FMT_NE(YA16BE,   YA16LE)
#define AV_PIX_FMT_RGB48  AV_PIX_FMT_NE(RGB48BE,  RGB48LE)
#define AV_PIX_FMT_RGB565 AV_PIX_FMT_NE(RGB565BE, RGB565LE)
#define AV_PIX_FMT_RGB555 AV_PIX_FMT_NE(RGB555BE, RGB555LE)
#define AV_PIX_FMT_RGB444 AV_PIX_FMT_NE(RGB444BE, RGB444LE)
#define AV_PIX_FMT_RGBA64 AV_PIX_FMT_NE(RGBA64BE, RGBA64LE)
#define AV_PIX_FMT_BGR48  AV_PIX_FMT_NE(BGR48BE,  BGR48LE)
#define AV_PIX_FMT_BGR565 AV_PIX_FMT_NE(BGR565BE, BGR565LE)
#define AV_PIX_FMT_BGR555 AV_PIX_FMT_NE(BGR555BE, BGR555LE)
#define AV_PIX_FMT_BGR444 AV_PIX_FMT_NE(BGR444BE, BGR444LE)
#define AV_PIX_FMT_BGRA64 AV_PIX_FMT_NE(BGRA64BE, BGRA64LE)
 
#define AV_PIX_FMT_YUV420P9  AV_PIX_FMT_NE(YUV420P9BE , YUV420P9LE)
#define AV_PIX_FMT_YUV422P9  AV_PIX_FMT_NE(YUV422P9BE , YUV422P9LE)
#define AV_PIX_FMT_YUV444P9  AV_PIX_FMT_NE(YUV444P9BE , YUV444P9LE)
#define AV_PIX_FMT_YUV420P10 AV_PIX_FMT_NE(YUV420P10BE, YUV420P10LE)
#define AV_PIX_FMT_YUV422P10 AV_PIX_FMT_NE(YUV422P10BE, YUV422P10LE)
#define AV_PIX_FMT_YUV440P10 AV_PIX_FMT_NE(YUV440P10BE, YUV440P10LE)
#define AV_PIX_FMT_YUV444P10 AV_PIX_FMT_NE(YUV444P10BE, YUV444P10LE)
#define AV_PIX_FMT_YUV420P12 AV_PIX_FMT_NE(YUV420P12BE, YUV420P12LE)
#define AV_PIX_FMT_YUV422P12 AV_PIX_FMT_NE(YUV422P12BE, YUV422P12LE)
#define AV_PIX_FMT_YUV440P12 AV_PIX_FMT_NE(YUV440P12BE, YUV440P12LE)
#define AV_PIX_FMT_YUV444P12 AV_PIX_FMT_NE(YUV444P12BE, YUV444P12LE)
#define AV_PIX_FMT_YUV420P14 AV_PIX_FMT_NE(YUV420P14BE, YUV420P14LE)
#define AV_PIX_FMT_YUV422P14 AV_PIX_FMT_NE(YUV422P14BE, YUV422P14LE)
#define AV_PIX_FMT_YUV444P14 AV_PIX_FMT_NE(YUV444P14BE, YUV444P14LE)
#define AV_PIX_FMT_YUV420P16 AV_PIX_FMT_NE(YUV420P16BE, YUV420P16LE)
#define AV_PIX_FMT_YUV422P16 AV_PIX_FMT_NE(YUV422P16BE, YUV422P16LE)
#define AV_PIX_FMT_YUV444P16 AV_PIX_FMT_NE(YUV444P16BE, YUV444P16LE)
 
#define AV_PIX_FMT_GBRP9     AV_PIX_FMT_NE(GBRP9BE ,    GBRP9LE)
#define AV_PIX_FMT_GBRP10    AV_PIX_FMT_NE(GBRP10BE,    GBRP10LE)
#define AV_PIX_FMT_GBRP12    AV_PIX_FMT_NE(GBRP12BE,    GBRP12LE)
#define AV_PIX_FMT_GBRP14    AV_PIX_FMT_NE(GBRP14BE,    GBRP14LE)
#define AV_PIX_FMT_GBRP16    AV_PIX_FMT_NE(GBRP16BE,    GBRP16LE)
#define AV_PIX_FMT_GBRAP10   AV_PIX_FMT_NE(GBRAP10BE,   GBRAP10LE)
#define AV_PIX_FMT_GBRAP12   AV_PIX_FMT_NE(GBRAP12BE,   GBRAP12LE)
#define AV_PIX_FMT_GBRAP16   AV_PIX_FMT_NE(GBRAP16BE,   GBRAP16LE)
 
#define AV_PIX_FMT_BAYER_BGGR16 AV_PIX_FMT_NE(BAYER_BGGR16BE,    BAYER_BGGR16LE)
#define AV_PIX_FMT_BAYER_RGGB16 AV_PIX_FMT_NE(BAYER_RGGB16BE,    BAYER_RGGB16LE)
#define AV_PIX_FMT_BAYER_GBRG16 AV_PIX_FMT_NE(BAYER_GBRG16BE,    BAYER_GBRG16LE)
#define AV_PIX_FMT_BAYER_GRBG16 AV_PIX_FMT_NE(BAYER_GRBG16BE,    BAYER_GRBG16LE)
 
#define AV_PIX_FMT_GBRPF32    AV_PIX_FMT_NE(GBRPF32BE,  GBRPF32LE)
#define AV_PIX_FMT_GBRAPF32   AV_PIX_FMT_NE(GBRAPF32BE, GBRAPF32LE)
 
#define AV_PIX_FMT_YUVA420P9  AV_PIX_FMT_NE(YUVA420P9BE , YUVA420P9LE)
#define AV_PIX_FMT_YUVA422P9  AV_PIX_FMT_NE(YUVA422P9BE , YUVA422P9LE)
#define AV_PIX_FMT_YUVA444P9  AV_PIX_FMT_NE(YUVA444P9BE , YUVA444P9LE)
#define AV_PIX_FMT_YUVA420P10 AV_PIX_FMT_NE(YUVA420P10BE, YUVA420P10LE)
#define AV_PIX_FMT_YUVA422P10 AV_PIX_FMT_NE(YUVA422P10BE, YUVA422P10LE)
#define AV_PIX_FMT_YUVA444P10 AV_PIX_FMT_NE(YUVA444P10BE, YUVA444P10LE)
#define AV_PIX_FMT_YUVA420P16 AV_PIX_FMT_NE(YUVA420P16BE, YUVA420P16LE)
#define AV_PIX_FMT_YUVA422P16 AV_PIX_FMT_NE(YUVA422P16BE, YUVA422P16LE)
#define AV_PIX_FMT_YUVA444P16 AV_PIX_FMT_NE(YUVA444P16BE, YUVA444P16LE)
 
#define AV_PIX_FMT_XYZ12      AV_PIX_FMT_NE(XYZ12BE, XYZ12LE)
#define AV_PIX_FMT_NV20       AV_PIX_FMT_NE(NV20BE,  NV20LE)
#define AV_PIX_FMT_AYUV64     AV_PIX_FMT_NE(AYUV64BE, AYUV64LE)
#define AV_PIX_FMT_P010       AV_PIX_FMT_NE(P010BE,  P010LE)
#define AV_PIX_FMT_P016       AV_PIX_FMT_NE(P016BE,  P016LE)
 
enum AVColorPrimaries {
    AVCOL_PRI_RESERVED0   = 0,
    AVCOL_PRI_BT709       = 1,  
    AVCOL_PRI_UNSPECIFIED = 2,
    AVCOL_PRI_RESERVED    = 3,
    AVCOL_PRI_BT470M      = 4,  
 
    AVCOL_PRI_BT470BG     = 5,  
    AVCOL_PRI_SMPTE170M   = 6,  
    AVCOL_PRI_SMPTE240M   = 7,  
    AVCOL_PRI_FILM        = 8,  
    AVCOL_PRI_BT2020      = 9,  
    AVCOL_PRI_SMPTE428    = 10, 
    AVCOL_PRI_SMPTEST428_1 = AVCOL_PRI_SMPTE428,
    AVCOL_PRI_SMPTE431    = 11, 
    AVCOL_PRI_SMPTE432    = 12, 
    AVCOL_PRI_JEDEC_P22   = 22, 
    AVCOL_PRI_NB                
};
 
enum AVColorTransferCharacteristic {
    AVCOL_TRC_RESERVED0    = 0,
    AVCOL_TRC_BT709        = 1,  
    AVCOL_TRC_UNSPECIFIED  = 2,
    AVCOL_TRC_RESERVED     = 3,
    AVCOL_TRC_GAMMA22      = 4,  
    AVCOL_TRC_GAMMA28      = 5,  
    AVCOL_TRC_SMPTE170M    = 6,  
    AVCOL_TRC_SMPTE240M    = 7,
    AVCOL_TRC_LINEAR       = 8,  
    AVCOL_TRC_LOG          = 9,  
    AVCOL_TRC_LOG_SQRT     = 10, 
    AVCOL_TRC_IEC61966_2_4 = 11, 
    AVCOL_TRC_BT1361_ECG   = 12, 
    AVCOL_TRC_IEC61966_2_1 = 13, 
    AVCOL_TRC_BT2020_10    = 14, 
    AVCOL_TRC_BT2020_12    = 15, 
    AVCOL_TRC_SMPTE2084    = 16, 
    AVCOL_TRC_SMPTEST2084  = AVCOL_TRC_SMPTE2084,
    AVCOL_TRC_SMPTE428     = 17, 
    AVCOL_TRC_SMPTEST428_1 = AVCOL_TRC_SMPTE428,
    AVCOL_TRC_ARIB_STD_B67 = 18, 
    AVCOL_TRC_NB                 
};
 
enum AVColorSpace {
    AVCOL_SPC_RGB         = 0,  
    AVCOL_SPC_BT709       = 1,  
    AVCOL_SPC_UNSPECIFIED = 2,
    AVCOL_SPC_RESERVED    = 3,
    AVCOL_SPC_FCC         = 4,  
    AVCOL_SPC_BT470BG     = 5,  
    AVCOL_SPC_SMPTE170M   = 6,  
    AVCOL_SPC_SMPTE240M   = 7,  
    AVCOL_SPC_YCGCO       = 8,  
    AVCOL_SPC_YCOCG       = AVCOL_SPC_YCGCO,
    AVCOL_SPC_BT2020_NCL  = 9,  
    AVCOL_SPC_BT2020_CL   = 10, 
    AVCOL_SPC_SMPTE2085   = 11, 
    AVCOL_SPC_CHROMA_DERIVED_NCL = 12, 
    AVCOL_SPC_CHROMA_DERIVED_CL = 13, 
    AVCOL_SPC_ICTCP       = 14, 
    AVCOL_SPC_NB                
};
 
enum AVColorRange {
    AVCOL_RANGE_UNSPECIFIED = 0,
    AVCOL_RANGE_MPEG        = 1, 
    AVCOL_RANGE_JPEG        = 2, 
    AVCOL_RANGE_NB               
};
 
enum AVChromaLocation {
    AVCHROMA_LOC_UNSPECIFIED = 0,
    AVCHROMA_LOC_LEFT        = 1, 
    AVCHROMA_LOC_CENTER      = 2, 
    AVCHROMA_LOC_TOPLEFT     = 3, 
    AVCHROMA_LOC_TOP         = 4,
    AVCHROMA_LOC_BOTTOMLEFT  = 5,
    AVCHROMA_LOC_BOTTOM      = 6,
    AVCHROMA_LOC_NB               
};
 
static inline void *av_x_if_null(const void *p, const void *x)
{
    return (void *)(intptr_t)(p ? p : x);
}
 
unsigned av_int_list_length_for_size(unsigned elsize,
                                     const void *list, uint64_t term) av_pure;
 
#define av_int_list_length(list, term) \
    av_int_list_length_for_size(sizeof(*(list)), list, term)
 
FILE *av_fopen_utf8(const char *path, const char *mode);
 
AVRational av_get_time_base_q(void);
 
#define AV_FOURCC_MAX_STRING_SIZE 32
 
#define av_fourcc2str(fourcc) av_fourcc_make_string((char[AV_FOURCC_MAX_STRING_SIZE]){0}, fourcc)
 
char *av_fourcc_make_string(char *buf, uint32_t fourcc);
 
enum AVSampleFormat {
    AV_SAMPLE_FMT_NONE = -1,
    AV_SAMPLE_FMT_U8,          
    AV_SAMPLE_FMT_S16,         
    AV_SAMPLE_FMT_S32,         
    AV_SAMPLE_FMT_FLT,         
    AV_SAMPLE_FMT_DBL,         
 
    AV_SAMPLE_FMT_U8P,         
    AV_SAMPLE_FMT_S16P,        
    AV_SAMPLE_FMT_S32P,        
    AV_SAMPLE_FMT_FLTP,        
    AV_SAMPLE_FMT_DBLP,        
    AV_SAMPLE_FMT_S64,         
    AV_SAMPLE_FMT_S64P,        
 
    AV_SAMPLE_FMT_NB           
};
 
const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
 
enum AVSampleFormat av_get_sample_fmt(const char *name);
 
enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar);
 
enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt);
 
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt);
 
char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
 
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
 
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt);
 
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
                               enum AVSampleFormat sample_fmt, int align);
 
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
                           const uint8_t *buf,
                           int nb_channels, int nb_samples,
                           enum AVSampleFormat sample_fmt, int align);
 
int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
                     int nb_samples, enum AVSampleFormat sample_fmt, int align);
 
int av_samples_alloc_array_and_samples(uint8_t ***audio_data, int *linesize, int nb_channels,
                                       int nb_samples, enum AVSampleFormat sample_fmt, int align);
 
int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
                    int src_offset, int nb_samples, int nb_channels,
                    enum AVSampleFormat sample_fmt);
 
int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
                           int nb_channels, enum AVSampleFormat sample_fmt);
 
#define AVUTIL_BUFFER_H
 
typedef struct AVBuffer AVBuffer;
 
typedef struct AVBufferRef {
    AVBuffer *buffer;
 
    uint8_t *data;
    
    int      size;
} AVBufferRef;
 
AVBufferRef *av_buffer_alloc(int size);
 
AVBufferRef *av_buffer_allocz(int size);
 
#define AV_BUFFER_FLAG_READONLY (1 << 0)
 
AVBufferRef *av_buffer_create(uint8_t *data, int size,
                              void (*free)(void *opaque, uint8_t *data),
                              void *opaque, int flags);
 
void av_buffer_default_free(void *opaque, uint8_t *data);
 
AVBufferRef *av_buffer_ref(AVBufferRef *buf);
 
void av_buffer_unref(AVBufferRef **buf);
 
int av_buffer_is_writable(const AVBufferRef *buf);
 
void *av_buffer_get_opaque(const AVBufferRef *buf);
 
int av_buffer_get_ref_count(const AVBufferRef *buf);
 
int av_buffer_make_writable(AVBufferRef **buf);
 
int av_buffer_realloc(AVBufferRef **buf, int size);
 
typedef struct AVBufferPool AVBufferPool;
 
AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size));
 
AVBufferPool *av_buffer_pool_init2(int size, void *opaque,
                                   AVBufferRef* (*alloc)(void *opaque, int size),
                                   void (*pool_free)(void *opaque));
 
void av_buffer_pool_uninit(AVBufferPool **pool);
 
AVBufferRef *av_buffer_pool_get(AVBufferPool *pool);
 
#define AVUTIL_CPU_H
 
#define AV_CPU_FLAG_FORCE    0x80000000 
 
#define AV_CPU_FLAG_MMX          0x0001 
#define AV_CPU_FLAG_MMXEXT       0x0002 
#define AV_CPU_FLAG_MMX2         0x0002 
#define AV_CPU_FLAG_3DNOW        0x0004 
#define AV_CPU_FLAG_SSE          0x0008 
#define AV_CPU_FLAG_SSE2         0x0010 
#define AV_CPU_FLAG_SSE2SLOW 0x40000000 
                                        
#define AV_CPU_FLAG_3DNOWEXT     0x0020 
#define AV_CPU_FLAG_SSE3         0x0040 
#define AV_CPU_FLAG_SSE3SLOW 0x20000000 
                                        
#define AV_CPU_FLAG_SSSE3        0x0080 
#define AV_CPU_FLAG_SSSE3SLOW 0x4000000 
#define AV_CPU_FLAG_ATOM     0x10000000 
#define AV_CPU_FLAG_SSE4         0x0100 
#define AV_CPU_FLAG_SSE42        0x0200 
#define AV_CPU_FLAG_AESNI       0x80000 
#define AV_CPU_FLAG_AVX          0x4000 
#define AV_CPU_FLAG_AVXSLOW   0x8000000 
#define AV_CPU_FLAG_XOP          0x0400 
#define AV_CPU_FLAG_FMA4         0x0800 
#define AV_CPU_FLAG_CMOV         0x1000 
#define AV_CPU_FLAG_AVX2         0x8000 
#define AV_CPU_FLAG_FMA3        0x10000 
#define AV_CPU_FLAG_BMI1        0x20000 
#define AV_CPU_FLAG_BMI2        0x40000 
 
#define AV_CPU_FLAG_ALTIVEC      0x0001 
#define AV_CPU_FLAG_VSX          0x0002 
#define AV_CPU_FLAG_POWER8       0x0004 
 
#define AV_CPU_FLAG_ARMV5TE      (1 << 0)
#define AV_CPU_FLAG_ARMV6        (1 << 1)
#define AV_CPU_FLAG_ARMV6T2      (1 << 2)
#define AV_CPU_FLAG_VFP          (1 << 3)
#define AV_CPU_FLAG_VFPV3        (1 << 4)
#define AV_CPU_FLAG_NEON         (1 << 5)
#define AV_CPU_FLAG_ARMV8        (1 << 6)
#define AV_CPU_FLAG_VFP_VM       (1 << 7) 
#define AV_CPU_FLAG_SETEND       (1 <<16)
 
int av_get_cpu_flags(void);
 
void av_force_cpu_flags(int flags);
 
attribute_deprecated void av_set_cpu_flags_mask(int mask);
 
attribute_deprecated
int av_parse_cpu_flags(const char *s);
 
int av_parse_cpu_caps(unsigned *flags, const char *s);
 
int av_cpu_count(void);
 
size_t av_cpu_max_align(void);
 
#define AVUTIL_CHANNEL_LAYOUT_H
 
#define AV_CH_FRONT_LEFT             0x00000001
#define AV_CH_FRONT_RIGHT            0x00000002
#define AV_CH_FRONT_CENTER           0x00000004
#define AV_CH_LOW_FREQUENCY          0x00000008
#define AV_CH_BACK_LEFT              0x00000010
#define AV_CH_BACK_RIGHT             0x00000020
#define AV_CH_FRONT_LEFT_OF_CENTER   0x00000040
#define AV_CH_FRONT_RIGHT_OF_CENTER  0x00000080
#define AV_CH_BACK_CENTER            0x00000100
#define AV_CH_SIDE_LEFT              0x00000200
#define AV_CH_SIDE_RIGHT             0x00000400
#define AV_CH_TOP_CENTER             0x00000800
#define AV_CH_TOP_FRONT_LEFT         0x00001000
#define AV_CH_TOP_FRONT_CENTER       0x00002000
#define AV_CH_TOP_FRONT_RIGHT        0x00004000
#define AV_CH_TOP_BACK_LEFT          0x00008000
#define AV_CH_TOP_BACK_CENTER        0x00010000
#define AV_CH_TOP_BACK_RIGHT         0x00020000
#define AV_CH_STEREO_LEFT            0x20000000  
#define AV_CH_STEREO_RIGHT           0x40000000  
#define AV_CH_WIDE_LEFT              0x0000000080000000ULL
#define AV_CH_WIDE_RIGHT             0x0000000100000000ULL
#define AV_CH_SURROUND_DIRECT_LEFT   0x0000000200000000ULL
#define AV_CH_SURROUND_DIRECT_RIGHT  0x0000000400000000ULL
#define AV_CH_LOW_FREQUENCY_2        0x0000000800000000ULL
 
#define AV_CH_LAYOUT_NATIVE          0x8000000000000000ULL
 
#define AV_CH_LAYOUT_MONO              (AV_CH_FRONT_CENTER)
#define AV_CH_LAYOUT_STEREO            (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
#define AV_CH_LAYOUT_2POINT1           (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_2_1               (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_SURROUND          (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
#define AV_CH_LAYOUT_3POINT1           (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_4POINT0           (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_4POINT1           (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_2_2               (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_QUAD              (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT0           (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_5POINT1           (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_5POINT0_BACK      (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT1_BACK      (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_6POINT0           (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT0_FRONT     (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_HEXAGONAL         (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT1_BACK      (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT1_FRONT     (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_7POINT0           (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_7POINT0_FRONT     (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_7POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_7POINT1_WIDE      (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_OCTAGONAL         (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_HEXADECAGONAL     (AV_CH_LAYOUT_OCTAGONAL|AV_CH_WIDE_LEFT|AV_CH_WIDE_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
#define AV_CH_LAYOUT_STEREO_DOWNMIX    (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
 
enum AVMatrixEncoding {
    AV_MATRIX_ENCODING_NONE,
    AV_MATRIX_ENCODING_DOLBY,
    AV_MATRIX_ENCODING_DPLII,
    AV_MATRIX_ENCODING_DPLIIX,
    AV_MATRIX_ENCODING_DPLIIZ,
    AV_MATRIX_ENCODING_DOLBYEX,
    AV_MATRIX_ENCODING_DOLBYHEADPHONE,
    AV_MATRIX_ENCODING_NB
};
 
uint64_t av_get_channel_layout(const char *name);
 
int av_get_extended_channel_layout(const char *name, uint64_t* channel_layout, int* nb_channels);
 
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout);
 
struct AVBPrint;
 
void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout);
 
int av_get_channel_layout_nb_channels(uint64_t channel_layout);
 
int64_t av_get_default_channel_layout(int nb_channels);
 
int av_get_channel_layout_channel_index(uint64_t channel_layout,
                                        uint64_t channel);
 
uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index);
 
const char *av_get_channel_name(uint64_t channel);
 
const char *av_get_channel_description(uint64_t channel);
 
int av_get_standard_channel_layout(unsigned index, uint64_t *layout,
                                   const char **name);
 
#define AVUTIL_DICT_H
 
#define AV_DICT_MATCH_CASE      1   
#define AV_DICT_IGNORE_SUFFIX   2   
 
#define AV_DICT_DONT_STRDUP_KEY 4   
 
#define AV_DICT_DONT_STRDUP_VAL 8   
 
#define AV_DICT_DONT_OVERWRITE 16   
#define AV_DICT_APPEND         32   
 
#define AV_DICT_MULTIKEY       64   
 
typedef struct AVDictionaryEntry {
    char *key;
    char *value;
} AVDictionaryEntry;
 
typedef struct AVDictionary AVDictionary;
 
AVDictionaryEntry *av_dict_get(const AVDictionary *m, const char *key,
                               const AVDictionaryEntry *prev, int flags);
 
int av_dict_count(const AVDictionary *m);
 
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
 
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags);
 
int av_dict_parse_string(AVDictionary **pm, const char *str,
                         const char *key_val_sep, const char *pairs_sep,
                         int flags);
 
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags);
 
void av_dict_free(AVDictionary **m);
 
int av_dict_get_string(const AVDictionary *m, char **buffer,
                       const char key_val_sep, const char pairs_sep);
 
#define AVUTIL_FRAME_H
 
enum AVFrameSideDataType {
    
    AV_FRAME_DATA_PANSCAN,
    
    AV_FRAME_DATA_A53_CC,
    
    AV_FRAME_DATA_STEREO3D,
    
    AV_FRAME_DATA_MATRIXENCODING,
    
    AV_FRAME_DATA_DOWNMIX_INFO,
    
    AV_FRAME_DATA_REPLAYGAIN,
    
    AV_FRAME_DATA_DISPLAYMATRIX,
    
    AV_FRAME_DATA_AFD,
    
    AV_FRAME_DATA_MOTION_VECTORS,
    
    AV_FRAME_DATA_SKIP_SAMPLES,
    
    AV_FRAME_DATA_AUDIO_SERVICE_TYPE,
    
    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,
    
    AV_FRAME_DATA_GOP_TIMECODE,
 
    AV_FRAME_DATA_SPHERICAL,
 
    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
 
    AV_FRAME_DATA_ICC_PROFILE,
};
 
enum AVActiveFormatDescription {
    AV_AFD_SAME         = 8,
    AV_AFD_4_3          = 9,
    AV_AFD_16_9         = 10,
    AV_AFD_14_9         = 11,
    AV_AFD_4_3_SP_14_9  = 13,
    AV_AFD_16_9_SP_14_9 = 14,
    AV_AFD_SP_4_3       = 15,
};
 
typedef struct AVFrameSideData {
    enum AVFrameSideDataType type;
    uint8_t *data;
    int      size;
    AVDictionary *metadata;
    AVBufferRef *buf;
} AVFrameSideData;
 
typedef struct AVFrame {
#define AV_NUM_DATA_POINTERS 8
    
    uint8_t *data[AV_NUM_DATA_POINTERS];
 
    int linesize[AV_NUM_DATA_POINTERS];
 
    uint8_t **extended_data;
 
    int width, height;
    
    int nb_samples;
 
    int format;
 
    int key_frame;
 
    enum AVPictureType pict_type;
 
    AVRational sample_aspect_ratio;
 
    int64_t pts;
 
    attribute_deprecated
    int64_t pkt_pts;
 
    int64_t pkt_dts;
 
    int coded_picture_number;
    
    int display_picture_number;
 
    int quality;
 
    void *opaque;
 
    attribute_deprecated
    uint64_t error[AV_NUM_DATA_POINTERS];
 
    int repeat_pict;
 
    int interlaced_frame;
 
    int top_field_first;
 
    int palette_has_changed;
 
    int64_t reordered_opaque;
 
    int sample_rate;
 
    uint64_t channel_layout;
 
    AVBufferRef *buf[AV_NUM_DATA_POINTERS];
 
    AVBufferRef **extended_buf;
    
    int        nb_extended_buf;
 
    AVFrameSideData **side_data;
    int            nb_side_data;
 
#define AV_FRAME_FLAG_CORRUPT       (1 << 0)
 
#define AV_FRAME_FLAG_DISCARD   (1 << 2)
 
    int flags;
 
    enum AVColorRange color_range;
 
    enum AVColorPrimaries color_primaries;
 
    enum AVColorTransferCharacteristic color_trc;
 
    enum AVColorSpace colorspace;
 
    enum AVChromaLocation chroma_location;
 
    int64_t best_effort_timestamp;
 
    int64_t pkt_pos;
 
    int64_t pkt_duration;
 
    AVDictionary *metadata;
 
    int decode_error_flags;
#define FF_DECODE_ERROR_INVALID_BITSTREAM   1
#define FF_DECODE_ERROR_MISSING_REFERENCE   2
 
    int channels;
 
    int pkt_size;
 
    attribute_deprecated
    int8_t *qscale_table;
    
    attribute_deprecated
    int qstride;
 
    attribute_deprecated
    int qscale_type;
 
    AVBufferRef *qp_table_buf;
    
    AVBufferRef *hw_frames_ctx;
 
    AVBufferRef *opaque_ref;
 
    size_t crop_top;
    size_t crop_bottom;
    size_t crop_left;
    size_t crop_right;
    
} AVFrame;
 
int64_t av_frame_get_best_effort_timestamp(const AVFrame *frame);
void    av_frame_set_best_effort_timestamp(AVFrame *frame, int64_t val);
int64_t av_frame_get_pkt_duration         (const AVFrame *frame);
void    av_frame_set_pkt_duration         (AVFrame *frame, int64_t val);
int64_t av_frame_get_pkt_pos              (const AVFrame *frame);
void    av_frame_set_pkt_pos              (AVFrame *frame, int64_t val);
int64_t av_frame_get_channel_layout       (const AVFrame *frame);
void    av_frame_set_channel_layout       (AVFrame *frame, int64_t val);
int     av_frame_get_channels             (const AVFrame *frame);
void    av_frame_set_channels             (AVFrame *frame, int     val);
int     av_frame_get_sample_rate          (const AVFrame *frame);
void    av_frame_set_sample_rate          (AVFrame *frame, int     val);
AVDictionary *av_frame_get_metadata       (const AVFrame *frame);
void          av_frame_set_metadata       (AVFrame *frame, AVDictionary *val);
int     av_frame_get_decode_error_flags   (const AVFrame *frame);
void    av_frame_set_decode_error_flags   (AVFrame *frame, int     val);
int     av_frame_get_pkt_size(const AVFrame *frame);
void    av_frame_set_pkt_size(AVFrame *frame, int val);
AVDictionary **avpriv_frame_get_metadatap(AVFrame *frame);
int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type);
int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int type);
enum AVColorSpace av_frame_get_colorspace(const AVFrame *frame);
void    av_frame_set_colorspace(AVFrame *frame, enum AVColorSpace val);
enum AVColorRange av_frame_get_color_range(const AVFrame *frame);
void    av_frame_set_color_range(AVFrame *frame, enum AVColorRange val);
 
const char *av_get_colorspace_name(enum AVColorSpace val);
 
AVFrame *av_frame_alloc(void);
 
void av_frame_free(AVFrame **frame);
 
int av_frame_ref(AVFrame *dst, const AVFrame *src);
 
AVFrame *av_frame_clone(const AVFrame *src);
 
void av_frame_unref(AVFrame *frame);
 
void av_frame_move_ref(AVFrame *dst, AVFrame *src);
 
int av_frame_get_buffer(AVFrame *frame, int align);
 
int av_frame_is_writable(AVFrame *frame);
 
int av_frame_make_writable(AVFrame *frame);
 
int av_frame_copy(AVFrame *dst, const AVFrame *src);
 
int av_frame_copy_props(AVFrame *dst, const AVFrame *src);
 
AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane);
 
AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
                                        enum AVFrameSideDataType type,
                                        int size);
 
AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
                                        enum AVFrameSideDataType type);
 
void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type);
 
enum {
    
    AV_FRAME_CROP_UNALIGNED     = 1 << 0,
};
 
int av_frame_apply_cropping(AVFrame *frame, int flags);
 
const char *av_frame_side_data_name(enum AVFrameSideDataType type);
 
#define AVCODEC_VERSION_H
 
#define LIBAVCODEC_VERSION_MAJOR  57
#define LIBAVCODEC_VERSION_MINOR 107
#define LIBAVCODEC_VERSION_MICRO 100
 
#define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                               LIBAVCODEC_VERSION_MINOR, \
                                               LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_VERSION      AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
                                           LIBAVCODEC_VERSION_MINOR,    \
                                           LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
 
#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
 
#define FF_API_VIMA_DECODER     (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AUDIO_CONVERT     (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AVCODEC_RESAMPLE  FF_API_AUDIO_CONVERT
#define FF_API_MISSING_SAMPLE    (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_LOWRES            (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_CAP_VDPAU         (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_BUFS_VDPAU        (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_VOXWARE           (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_SET_DIMENSIONS    (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_DEBUG_MV          (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AC_VLC            (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_OLD_MSMPEG4       (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_ASPECT_EXTENDED   (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_ARCH_ALPHA        (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_ERROR_RATE        (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_QSCALE_TYPE       (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_MB_TYPE           (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_MAX_BFRAMES       (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_NEG_LINESIZES     (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_EMU_EDGE          (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_ARCH_SH4          (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_ARCH_SPARC        (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_UNUSED_MEMBERS    (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_IDCT_XVIDMMX      (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_INPUT_PRESERVED   (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_NORMALIZE_AQP     (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_GMC               (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_MV0               (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_CODEC_NAME        (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AFD               (LIBAVCODEC_VERSION_MAJOR < 58)
 
#define FF_API_VISMV             (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AUDIOENC_DELAY    (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_VAAPI_CONTEXT     (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_MERGE_SD          (LIBAVCODEC_VERSION_MAJOR < 58)
#define FF_API_AVCTX_TIMEBASE    (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_MPV_OPT           (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_STREAM_CODEC_TAG  (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_QUANT_BIAS        (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_RC_STRATEGY       (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_CODED_FRAME       (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_MOTION_EST        (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_WITHOUT_PREFIX    (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_SIDEDATA_ONLY_PKT (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_VDPAU_PROFILE     (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_CONVERGENCE_DURATION (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_AVPICTURE         (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_AVPACKET_OLD_API (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_RTP_CALLBACK      (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_VBV_DELAY         (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_CODER_TYPE        (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_STAT_BITS         (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_PRIVATE_OPT      (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_ASS_TIMING       (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_OLD_BSF          (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_COPY_CONTEXT     (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_GET_CONTEXT_DEFAULTS (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_NVENC_OLD_NAME    (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_STRUCT_VAAPI_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_MERGE_SD_API      (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_TAG_STRING        (LIBAVCODEC_VERSION_MAJOR < 59)
#define FF_API_GETCHROMA         (LIBAVCODEC_VERSION_MAJOR < 59)
 
enum AVCodecID {
    AV_CODEC_ID_NONE,
 
    AV_CODEC_ID_MPEG1VIDEO,
    AV_CODEC_ID_MPEG2VIDEO, 
    AV_CODEC_ID_MPEG2VIDEO_XVMC,
    AV_CODEC_ID_H261,
    AV_CODEC_ID_H263,
    AV_CODEC_ID_RV10,
    AV_CODEC_ID_RV20,
    AV_CODEC_ID_MJPEG,
    AV_CODEC_ID_MJPEGB,
    AV_CODEC_ID_LJPEG,
    AV_CODEC_ID_SP5X,
    AV_CODEC_ID_JPEGLS,
    AV_CODEC_ID_MPEG4,
    AV_CODEC_ID_RAWVIDEO,
    AV_CODEC_ID_MSMPEG4V1,
    AV_CODEC_ID_MSMPEG4V2,
    AV_CODEC_ID_MSMPEG4V3,
    AV_CODEC_ID_WMV1,
    AV_CODEC_ID_WMV2,
    AV_CODEC_ID_H263P,
    AV_CODEC_ID_H263I,
    AV_CODEC_ID_FLV1,
    AV_CODEC_ID_SVQ1,
    AV_CODEC_ID_SVQ3,
    AV_CODEC_ID_DVVIDEO,
    AV_CODEC_ID_HUFFYUV,
    AV_CODEC_ID_CYUV,
    AV_CODEC_ID_H264,
    AV_CODEC_ID_INDEO3,
    AV_CODEC_ID_VP3,
    AV_CODEC_ID_THEORA,
    AV_CODEC_ID_ASV1,
    AV_CODEC_ID_ASV2,
    AV_CODEC_ID_FFV1,
    AV_CODEC_ID_4XM,
    AV_CODEC_ID_VCR1,
    AV_CODEC_ID_CLJR,
    AV_CODEC_ID_MDEC,
    AV_CODEC_ID_ROQ,
    AV_CODEC_ID_INTERPLAY_VIDEO,
    AV_CODEC_ID_XAN_WC3,
    AV_CODEC_ID_XAN_WC4,
    AV_CODEC_ID_RPZA,
    AV_CODEC_ID_CINEPAK,
    AV_CODEC_ID_WS_VQA,
    AV_CODEC_ID_MSRLE,
    AV_CODEC_ID_MSVIDEO1,
    AV_CODEC_ID_IDCIN,
    AV_CODEC_ID_8BPS,
    AV_CODEC_ID_SMC,
    AV_CODEC_ID_FLIC,
    AV_CODEC_ID_TRUEMOTION1,
    AV_CODEC_ID_VMDVIDEO,
    AV_CODEC_ID_MSZH,
    AV_CODEC_ID_ZLIB,
    AV_CODEC_ID_QTRLE,
    AV_CODEC_ID_TSCC,
    AV_CODEC_ID_ULTI,
    AV_CODEC_ID_QDRAW,
    AV_CODEC_ID_VIXL,
    AV_CODEC_ID_QPEG,
    AV_CODEC_ID_PNG,
    AV_CODEC_ID_PPM,
    AV_CODEC_ID_PBM,
    AV_CODEC_ID_PGM,
    AV_CODEC_ID_PGMYUV,
    AV_CODEC_ID_PAM,
    AV_CODEC_ID_FFVHUFF,
    AV_CODEC_ID_RV30,
    AV_CODEC_ID_RV40,
    AV_CODEC_ID_VC1,
    AV_CODEC_ID_WMV3,
    AV_CODEC_ID_LOCO,
    AV_CODEC_ID_WNV1,
    AV_CODEC_ID_AASC,
    AV_CODEC_ID_INDEO2,
    AV_CODEC_ID_FRAPS,
    AV_CODEC_ID_TRUEMOTION2,
    AV_CODEC_ID_BMP,
    AV_CODEC_ID_CSCD,
    AV_CODEC_ID_MMVIDEO,
    AV_CODEC_ID_ZMBV,
    AV_CODEC_ID_AVS,
    AV_CODEC_ID_SMACKVIDEO,
    AV_CODEC_ID_NUV,
    AV_CODEC_ID_KMVC,
    AV_CODEC_ID_FLASHSV,
    AV_CODEC_ID_CAVS,
    AV_CODEC_ID_JPEG2000,
    AV_CODEC_ID_VMNC,
    AV_CODEC_ID_VP5,
    AV_CODEC_ID_VP6,
    AV_CODEC_ID_VP6F,
    AV_CODEC_ID_TARGA,
    AV_CODEC_ID_DSICINVIDEO,
    AV_CODEC_ID_TIERTEXSEQVIDEO,
    AV_CODEC_ID_TIFF,
    AV_CODEC_ID_GIF,
    AV_CODEC_ID_DXA,
    AV_CODEC_ID_DNXHD,
    AV_CODEC_ID_THP,
    AV_CODEC_ID_SGI,
    AV_CODEC_ID_C93,
    AV_CODEC_ID_BETHSOFTVID,
    AV_CODEC_ID_PTX,
    AV_CODEC_ID_TXD,
    AV_CODEC_ID_VP6A,
    AV_CODEC_ID_AMV,
    AV_CODEC_ID_VB,
    AV_CODEC_ID_PCX,
    AV_CODEC_ID_SUNRAST,
    AV_CODEC_ID_INDEO4,
    AV_CODEC_ID_INDEO5,
    AV_CODEC_ID_MIMIC,
    AV_CODEC_ID_RL2,
    AV_CODEC_ID_ESCAPE124,
    AV_CODEC_ID_DIRAC,
    AV_CODEC_ID_BFI,
    AV_CODEC_ID_CMV,
    AV_CODEC_ID_MOTIONPIXELS,
    AV_CODEC_ID_TGV,
    AV_CODEC_ID_TGQ,
    AV_CODEC_ID_TQI,
    AV_CODEC_ID_AURA,
    AV_CODEC_ID_AURA2,
    AV_CODEC_ID_V210X,
    AV_CODEC_ID_TMV,
    AV_CODEC_ID_V210,
    AV_CODEC_ID_DPX,
    AV_CODEC_ID_MAD,
    AV_CODEC_ID_FRWU,
    AV_CODEC_ID_FLASHSV2,
    AV_CODEC_ID_CDGRAPHICS,
    AV_CODEC_ID_R210,
    AV_CODEC_ID_ANM,
    AV_CODEC_ID_BINKVIDEO,
    AV_CODEC_ID_IFF_ILBM,
#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
    AV_CODEC_ID_KGV1,
    AV_CODEC_ID_YOP,
    AV_CODEC_ID_VP8,
    AV_CODEC_ID_PICTOR,
    AV_CODEC_ID_ANSI,
    AV_CODEC_ID_A64_MULTI,
    AV_CODEC_ID_A64_MULTI5,
    AV_CODEC_ID_R10K,
    AV_CODEC_ID_MXPEG,
    AV_CODEC_ID_LAGARITH,
    AV_CODEC_ID_PRORES,
    AV_CODEC_ID_JV,
    AV_CODEC_ID_DFA,
    AV_CODEC_ID_WMV3IMAGE,
    AV_CODEC_ID_VC1IMAGE,
    AV_CODEC_ID_UTVIDEO,
    AV_CODEC_ID_BMV_VIDEO,
    AV_CODEC_ID_VBLE,
    AV_CODEC_ID_DXTORY,
    AV_CODEC_ID_V410,
    AV_CODEC_ID_XWD,
    AV_CODEC_ID_CDXL,
    AV_CODEC_ID_XBM,
    AV_CODEC_ID_ZEROCODEC,
    AV_CODEC_ID_MSS1,
    AV_CODEC_ID_MSA1,
    AV_CODEC_ID_TSCC2,
    AV_CODEC_ID_MTS2,
    AV_CODEC_ID_CLLC,
    AV_CODEC_ID_MSS2,
    AV_CODEC_ID_VP9,
    AV_CODEC_ID_AIC,
    AV_CODEC_ID_ESCAPE130,
    AV_CODEC_ID_G2M,
    AV_CODEC_ID_WEBP,
    AV_CODEC_ID_HNM4_VIDEO,
    AV_CODEC_ID_HEVC,
#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
    AV_CODEC_ID_FIC,
    AV_CODEC_ID_ALIAS_PIX,
    AV_CODEC_ID_BRENDER_PIX,
    AV_CODEC_ID_PAF_VIDEO,
    AV_CODEC_ID_EXR,
    AV_CODEC_ID_VP7,
    AV_CODEC_ID_SANM,
    AV_CODEC_ID_SGIRLE,
    AV_CODEC_ID_MVC1,
    AV_CODEC_ID_MVC2,
    AV_CODEC_ID_HQX,
    AV_CODEC_ID_TDSC,
    AV_CODEC_ID_HQ_HQA,
    AV_CODEC_ID_HAP,
    AV_CODEC_ID_DDS,
    AV_CODEC_ID_DXV,
    AV_CODEC_ID_SCREENPRESSO,
    AV_CODEC_ID_RSCC,
 
    AV_CODEC_ID_Y41P = 0x8000,
    AV_CODEC_ID_AVRP,
    AV_CODEC_ID_012V,
    AV_CODEC_ID_AVUI,
    AV_CODEC_ID_AYUV,
    AV_CODEC_ID_TARGA_Y216,
    AV_CODEC_ID_V308,
    AV_CODEC_ID_V408,
    AV_CODEC_ID_YUV4,
    AV_CODEC_ID_AVRN,
    AV_CODEC_ID_CPIA,
    AV_CODEC_ID_XFACE,
    AV_CODEC_ID_SNOW,
    AV_CODEC_ID_SMVJPEG,
    AV_CODEC_ID_APNG,
    AV_CODEC_ID_DAALA,
    AV_CODEC_ID_CFHD,
    AV_CODEC_ID_TRUEMOTION2RT,
    AV_CODEC_ID_M101,
    AV_CODEC_ID_MAGICYUV,
    AV_CODEC_ID_SHEERVIDEO,
    AV_CODEC_ID_YLC,
    AV_CODEC_ID_PSD,
    AV_CODEC_ID_PIXLET,
    AV_CODEC_ID_SPEEDHQ,
    AV_CODEC_ID_FMVC,
    AV_CODEC_ID_SCPR,
    AV_CODEC_ID_CLEARVIDEO,
    AV_CODEC_ID_XPM,
    AV_CODEC_ID_AV1,
    AV_CODEC_ID_BITPACKED,
    AV_CODEC_ID_MSCC,
    AV_CODEC_ID_SRGC,
    AV_CODEC_ID_SVG,
    AV_CODEC_ID_GDV,
    AV_CODEC_ID_FITS,
 
    AV_CODEC_ID_FIRST_AUDIO = 0x10000,     
    AV_CODEC_ID_PCM_S16LE = 0x10000,
    AV_CODEC_ID_PCM_S16BE,
    AV_CODEC_ID_PCM_U16LE,
    AV_CODEC_ID_PCM_U16BE,
    AV_CODEC_ID_PCM_S8,
    AV_CODEC_ID_PCM_U8,
    AV_CODEC_ID_PCM_MULAW,
    AV_CODEC_ID_PCM_ALAW,
    AV_CODEC_ID_PCM_S32LE,
    AV_CODEC_ID_PCM_S32BE,
    AV_CODEC_ID_PCM_U32LE,
    AV_CODEC_ID_PCM_U32BE,
    AV_CODEC_ID_PCM_S24LE,
    AV_CODEC_ID_PCM_S24BE,
    AV_CODEC_ID_PCM_U24LE,
    AV_CODEC_ID_PCM_U24BE,
    AV_CODEC_ID_PCM_S24DAUD,
    AV_CODEC_ID_PCM_ZORK,
    AV_CODEC_ID_PCM_S16LE_PLANAR,
    AV_CODEC_ID_PCM_DVD,
    AV_CODEC_ID_PCM_F32BE,
    AV_CODEC_ID_PCM_F32LE,
    AV_CODEC_ID_PCM_F64BE,
    AV_CODEC_ID_PCM_F64LE,
    AV_CODEC_ID_PCM_BLURAY,
    AV_CODEC_ID_PCM_LXF,
    AV_CODEC_ID_S302M,
    AV_CODEC_ID_PCM_S8_PLANAR,
    AV_CODEC_ID_PCM_S24LE_PLANAR,
    AV_CODEC_ID_PCM_S32LE_PLANAR,
    AV_CODEC_ID_PCM_S16BE_PLANAR,
 
    AV_CODEC_ID_PCM_S64LE = 0x10800,
    AV_CODEC_ID_PCM_S64BE,
    AV_CODEC_ID_PCM_F16LE,
    AV_CODEC_ID_PCM_F24LE,
 
    AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
    AV_CODEC_ID_ADPCM_IMA_WAV,
    AV_CODEC_ID_ADPCM_IMA_DK3,
    AV_CODEC_ID_ADPCM_IMA_DK4,
    AV_CODEC_ID_ADPCM_IMA_WS,
    AV_CODEC_ID_ADPCM_IMA_SMJPEG,
    AV_CODEC_ID_ADPCM_MS,
    AV_CODEC_ID_ADPCM_4XM,
    AV_CODEC_ID_ADPCM_XA,
    AV_CODEC_ID_ADPCM_ADX,
    AV_CODEC_ID_ADPCM_EA,
    AV_CODEC_ID_ADPCM_G726,
    AV_CODEC_ID_ADPCM_CT,
    AV_CODEC_ID_ADPCM_SWF,
    AV_CODEC_ID_ADPCM_YAMAHA,
    AV_CODEC_ID_ADPCM_SBPRO_4,
    AV_CODEC_ID_ADPCM_SBPRO_3,
    AV_CODEC_ID_ADPCM_SBPRO_2,
    AV_CODEC_ID_ADPCM_THP,
    AV_CODEC_ID_ADPCM_IMA_AMV,
    AV_CODEC_ID_ADPCM_EA_R1,
    AV_CODEC_ID_ADPCM_EA_R3,
    AV_CODEC_ID_ADPCM_EA_R2,
    AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
    AV_CODEC_ID_ADPCM_IMA_EA_EACS,
    AV_CODEC_ID_ADPCM_EA_XAS,
    AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
    AV_CODEC_ID_ADPCM_IMA_ISS,
    AV_CODEC_ID_ADPCM_G722,
    AV_CODEC_ID_ADPCM_IMA_APC,
    AV_CODEC_ID_ADPCM_VIMA,
    AV_CODEC_ID_VIMA = AV_CODEC_ID_ADPCM_VIMA,
 
    AV_CODEC_ID_ADPCM_AFC = 0x11800,
    AV_CODEC_ID_ADPCM_IMA_OKI,
    AV_CODEC_ID_ADPCM_DTK,
    AV_CODEC_ID_ADPCM_IMA_RAD,
    AV_CODEC_ID_ADPCM_G726LE,
    AV_CODEC_ID_ADPCM_THP_LE,
    AV_CODEC_ID_ADPCM_PSX,
    AV_CODEC_ID_ADPCM_AICA,
    AV_CODEC_ID_ADPCM_IMA_DAT4,
    AV_CODEC_ID_ADPCM_MTAF,
 
    AV_CODEC_ID_AMR_NB = 0x12000,
    AV_CODEC_ID_AMR_WB,
 
    AV_CODEC_ID_RA_144 = 0x13000,
    AV_CODEC_ID_RA_288,
 
    AV_CODEC_ID_ROQ_DPCM = 0x14000,
    AV_CODEC_ID_INTERPLAY_DPCM,
    AV_CODEC_ID_XAN_DPCM,
    AV_CODEC_ID_SOL_DPCM,
 
    AV_CODEC_ID_SDX2_DPCM = 0x14800,
    AV_CODEC_ID_GREMLIN_DPCM,
 
    AV_CODEC_ID_MP2 = 0x15000,
    AV_CODEC_ID_MP3, 
    AV_CODEC_ID_AAC,
    AV_CODEC_ID_AC3,
    AV_CODEC_ID_DTS,
    AV_CODEC_ID_VORBIS,
    AV_CODEC_ID_DVAUDIO,
    AV_CODEC_ID_WMAV1,
    AV_CODEC_ID_WMAV2,
    AV_CODEC_ID_MACE3,
    AV_CODEC_ID_MACE6,
    AV_CODEC_ID_VMDAUDIO,
    AV_CODEC_ID_FLAC,
    AV_CODEC_ID_MP3ADU,
    AV_CODEC_ID_MP3ON4,
    AV_CODEC_ID_SHORTEN,
    AV_CODEC_ID_ALAC,
    AV_CODEC_ID_WESTWOOD_SND1,
    AV_CODEC_ID_GSM, 
    AV_CODEC_ID_QDM2,
    AV_CODEC_ID_COOK,
    AV_CODEC_ID_TRUESPEECH,
    AV_CODEC_ID_TTA,
    AV_CODEC_ID_SMACKAUDIO,
    AV_CODEC_ID_QCELP,
    AV_CODEC_ID_WAVPACK,
    AV_CODEC_ID_DSICINAUDIO,
    AV_CODEC_ID_IMC,
    AV_CODEC_ID_MUSEPACK7,
    AV_CODEC_ID_MLP,
    AV_CODEC_ID_GSM_MS, 
    AV_CODEC_ID_ATRAC3,
    AV_CODEC_ID_VOXWARE,
    AV_CODEC_ID_APE,
    AV_CODEC_ID_NELLYMOSER,
    AV_CODEC_ID_MUSEPACK8,
    AV_CODEC_ID_SPEEX,
    AV_CODEC_ID_WMAVOICE,
    AV_CODEC_ID_WMAPRO,
    AV_CODEC_ID_WMALOSSLESS,
    AV_CODEC_ID_ATRAC3P,
    AV_CODEC_ID_EAC3,
    AV_CODEC_ID_SIPR,
    AV_CODEC_ID_MP1,
    AV_CODEC_ID_TWINVQ,
    AV_CODEC_ID_TRUEHD,
    AV_CODEC_ID_MP4ALS,
    AV_CODEC_ID_ATRAC1,
    AV_CODEC_ID_BINKAUDIO_RDFT,
    AV_CODEC_ID_BINKAUDIO_DCT,
    AV_CODEC_ID_AAC_LATM,
    AV_CODEC_ID_QDMC,
    AV_CODEC_ID_CELT,
    AV_CODEC_ID_G723_1,
    AV_CODEC_ID_G729,
    AV_CODEC_ID_8SVX_EXP,
    AV_CODEC_ID_8SVX_FIB,
    AV_CODEC_ID_BMV_AUDIO,
    AV_CODEC_ID_RALF,
    AV_CODEC_ID_IAC,
    AV_CODEC_ID_ILBC,
    AV_CODEC_ID_OPUS,
    AV_CODEC_ID_COMFORT_NOISE,
    AV_CODEC_ID_TAK,
    AV_CODEC_ID_METASOUND,
    AV_CODEC_ID_PAF_AUDIO,
    AV_CODEC_ID_ON2AVC,
    AV_CODEC_ID_DSS_SP,
 
    AV_CODEC_ID_FFWAVESYNTH = 0x15800,
    AV_CODEC_ID_SONIC,
    AV_CODEC_ID_SONIC_LS,
    AV_CODEC_ID_EVRC,
    AV_CODEC_ID_SMV,
    AV_CODEC_ID_DSD_LSBF,
    AV_CODEC_ID_DSD_MSBF,
    AV_CODEC_ID_DSD_LSBF_PLANAR,
    AV_CODEC_ID_DSD_MSBF_PLANAR,
    AV_CODEC_ID_4GV,
    AV_CODEC_ID_INTERPLAY_ACM,
    AV_CODEC_ID_XMA1,
    AV_CODEC_ID_XMA2,
    AV_CODEC_ID_DST,
    AV_CODEC_ID_ATRAC3AL,
    AV_CODEC_ID_ATRAC3PAL,
    AV_CODEC_ID_DOLBY_E,
 
    AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          
    AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
    AV_CODEC_ID_DVB_SUBTITLE,
    AV_CODEC_ID_TEXT,  
    AV_CODEC_ID_XSUB,
    AV_CODEC_ID_SSA,
    AV_CODEC_ID_MOV_TEXT,
    AV_CODEC_ID_HDMV_PGS_SUBTITLE,
    AV_CODEC_ID_DVB_TELETEXT,
    AV_CODEC_ID_SRT,
 
    AV_CODEC_ID_MICRODVD   = 0x17800,
    AV_CODEC_ID_EIA_608,
    AV_CODEC_ID_JACOSUB,
    AV_CODEC_ID_SAMI,
    AV_CODEC_ID_REALTEXT,
    AV_CODEC_ID_STL,
    AV_CODEC_ID_SUBVIEWER1,
    AV_CODEC_ID_SUBVIEWER,
    AV_CODEC_ID_SUBRIP,
    AV_CODEC_ID_WEBVTT,
    AV_CODEC_ID_MPL2,
    AV_CODEC_ID_VPLAYER,
    AV_CODEC_ID_PJS,
    AV_CODEC_ID_ASS,
    AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
 
    AV_CODEC_ID_FIRST_UNKNOWN = 0x18000,           
    AV_CODEC_ID_TTF = 0x18000,
 
    AV_CODEC_ID_SCTE_35, 
    AV_CODEC_ID_BINTEXT    = 0x18800,
    AV_CODEC_ID_XBIN,
    AV_CODEC_ID_IDF,
    AV_CODEC_ID_OTF,
    AV_CODEC_ID_SMPTE_KLV,
    AV_CODEC_ID_DVD_NAV,
    AV_CODEC_ID_TIMED_ID3,
    AV_CODEC_ID_BIN_DATA,
 
    AV_CODEC_ID_PROBE = 0x19000, 
 
    AV_CODEC_ID_MPEG2TS = 0x20000, 
 
    AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, 
 
    AV_CODEC_ID_FFMETADATA = 0x21000,   
    AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, 
};
 
typedef struct AVCodecDescriptor {
    enum AVCodecID     id;
    enum AVMediaType type;
    
    const char      *name;
    
    const char *long_name;
    
    int             props;
    
    const char *const *mime_types;
    
    const struct AVProfile *profiles;
} AVCodecDescriptor;
 
#define AV_CODEC_PROP_INTRA_ONLY    (1 << 0)
 
#define AV_CODEC_PROP_LOSSY         (1 << 1)
 
#define AV_CODEC_PROP_LOSSLESS      (1 << 2)
 
#define AV_CODEC_PROP_REORDER       (1 << 3)
 
#define AV_CODEC_PROP_BITMAP_SUB    (1 << 16)
 
#define AV_CODEC_PROP_TEXT_SUB      (1 << 17)
 
#define AV_INPUT_BUFFER_PADDING_SIZE 32
 
#define AV_INPUT_BUFFER_MIN_SIZE 16384
 
#define FF_INPUT_BUFFER_PADDING_SIZE 32
 
#define FF_MIN_BUFFER_SIZE 16384
 
enum Motion_Est_ID {
    ME_ZERO = 1,    
    ME_FULL,
    ME_LOG,
    ME_PHODS,
    ME_EPZS,        
    ME_X1,          
    ME_HEX,         
    ME_UMH,         
    ME_TESA,        
    ME_ITER=50,     
};
 
enum AVDiscard{
    
    AVDISCARD_NONE    =-16, 
    AVDISCARD_DEFAULT =  0, 
    AVDISCARD_NONREF  =  8, 
    AVDISCARD_BIDIR   = 16, 
    AVDISCARD_NONINTRA= 24, 
    AVDISCARD_NONKEY  = 32, 
    AVDISCARD_ALL     = 48, 
};
 
enum AVAudioServiceType {
    AV_AUDIO_SERVICE_TYPE_MAIN              = 0,
    AV_AUDIO_SERVICE_TYPE_EFFECTS           = 1,
    AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
    AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED  = 3,
    AV_AUDIO_SERVICE_TYPE_DIALOGUE          = 4,
    AV_AUDIO_SERVICE_TYPE_COMMENTARY        = 5,
    AV_AUDIO_SERVICE_TYPE_EMERGENCY         = 6,
    AV_AUDIO_SERVICE_TYPE_VOICE_OVER        = 7,
    AV_AUDIO_SERVICE_TYPE_KARAOKE           = 8,
    AV_AUDIO_SERVICE_TYPE_NB                   , 
};
 
typedef struct RcOverride{
    int start_frame;
    int end_frame;
    int qscale; 
    float quality_factor;
} RcOverride;
 
#define FF_MAX_B_FRAMES 16
 
#define AV_CODEC_FLAG_UNALIGNED       (1 <<  0)
 
#define AV_CODEC_FLAG_QSCALE          (1 <<  1)
 
#define AV_CODEC_FLAG_4MV             (1 <<  2)
 
#define AV_CODEC_FLAG_OUTPUT_CORRUPT  (1 <<  3)
 
#define AV_CODEC_FLAG_QPEL            (1 <<  4)
 
#define AV_CODEC_FLAG_PASS1           (1 <<  9)
 
#define AV_CODEC_FLAG_PASS2           (1 << 10)
 
#define AV_CODEC_FLAG_LOOP_FILTER     (1 << 11)
 
#define AV_CODEC_FLAG_GRAY            (1 << 13)
 
#define AV_CODEC_FLAG_PSNR            (1 << 15)
 
#define AV_CODEC_FLAG_TRUNCATED       (1 << 16)
 
#define AV_CODEC_FLAG_INTERLACED_DCT  (1 << 18)
 
#define AV_CODEC_FLAG_LOW_DELAY       (1 << 19)
 
#define AV_CODEC_FLAG_GLOBAL_HEADER   (1 << 22)
 
#define AV_CODEC_FLAG_BITEXACT        (1 << 23)
 
#define AV_CODEC_FLAG_AC_PRED         (1 << 24)
 
#define AV_CODEC_FLAG_INTERLACED_ME   (1 << 29)
#define AV_CODEC_FLAG_CLOSED_GOP      (1U << 31)
 
#define AV_CODEC_FLAG2_FAST           (1 <<  0)
 
#define AV_CODEC_FLAG2_NO_OUTPUT      (1 <<  2)
 
#define AV_CODEC_FLAG2_LOCAL_HEADER   (1 <<  3)
 
#define AV_CODEC_FLAG2_DROP_FRAME_TIMECODE (1 << 13)
 
#define AV_CODEC_FLAG2_CHUNKS         (1 << 15)
 
#define AV_CODEC_FLAG2_IGNORE_CROP    (1 << 16)
 
#define AV_CODEC_FLAG2_SHOW_ALL       (1 << 22)
 
#define AV_CODEC_FLAG2_EXPORT_MVS     (1 << 28)
 
#define AV_CODEC_FLAG2_SKIP_MANUAL    (1 << 29)
 
#define AV_CODEC_FLAG2_RO_FLUSH_NOOP  (1 << 30)
 
#define AV_CODEC_CAP_DRAW_HORIZ_BAND     (1 <<  0)
 
#define AV_CODEC_CAP_DR1                 (1 <<  1)
#define AV_CODEC_CAP_TRUNCATED           (1 <<  3)
 
#define AV_CODEC_CAP_DELAY               (1 <<  5)
 
#define AV_CODEC_CAP_SMALL_LAST_FRAME    (1 <<  6)
 
#define AV_CODEC_CAP_HWACCEL_VDPAU       (1 <<  7)
 
#define AV_CODEC_CAP_SUBFRAMES           (1 <<  8)
 
#define AV_CODEC_CAP_EXPERIMENTAL        (1 <<  9)
 
#define AV_CODEC_CAP_CHANNEL_CONF        (1 << 10)
 
#define AV_CODEC_CAP_FRAME_THREADS       (1 << 12)
 
#define AV_CODEC_CAP_SLICE_THREADS       (1 << 13)
 
#define AV_CODEC_CAP_PARAM_CHANGE        (1 << 14)
 
#define AV_CODEC_CAP_AUTO_THREADS        (1 << 15)
 
#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
 
#define AV_CODEC_CAP_AVOID_PROBING       (1 << 17)
 
#define AV_CODEC_CAP_INTRA_ONLY       0x40000000
 
#define AV_CODEC_CAP_LOSSLESS         0x80000000
 
#define CODEC_FLAG_UNALIGNED AV_CODEC_FLAG_UNALIGNED
#define CODEC_FLAG_QSCALE AV_CODEC_FLAG_QSCALE
#define CODEC_FLAG_4MV    AV_CODEC_FLAG_4MV
#define CODEC_FLAG_OUTPUT_CORRUPT AV_CODEC_FLAG_OUTPUT_CORRUPT
#define CODEC_FLAG_QPEL   AV_CODEC_FLAG_QPEL
 
#define CODEC_FLAG_GMC    0x0020  
 
#define CODEC_FLAG_MV0    0x0040
 
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
#define CODEC_FLAG_PASS1           AV_CODEC_FLAG_PASS1
#define CODEC_FLAG_PASS2           AV_CODEC_FLAG_PASS2
#define CODEC_FLAG_GRAY            AV_CODEC_FLAG_GRAY
 
#define CODEC_FLAG_EMU_EDGE        0x4000
#define CODEC_FLAG_PSNR            AV_CODEC_FLAG_PSNR
#define CODEC_FLAG_TRUNCATED       AV_CODEC_FLAG_TRUNCATED
 
#define CODEC_FLAG_NORMALIZE_AQP  0x00020000
#define CODEC_FLAG_INTERLACED_DCT AV_CODEC_FLAG_INTERLACED_DCT
#define CODEC_FLAG_LOW_DELAY      AV_CODEC_FLAG_LOW_DELAY
#define CODEC_FLAG_GLOBAL_HEADER  AV_CODEC_FLAG_GLOBAL_HEADER
#define CODEC_FLAG_BITEXACT       AV_CODEC_FLAG_BITEXACT
#define CODEC_FLAG_AC_PRED        AV_CODEC_FLAG_AC_PRED
#define CODEC_FLAG_LOOP_FILTER    AV_CODEC_FLAG_LOOP_FILTER
#define CODEC_FLAG_INTERLACED_ME  AV_CODEC_FLAG_INTERLACED_ME
#define CODEC_FLAG_CLOSED_GOP     AV_CODEC_FLAG_CLOSED_GOP
#define CODEC_FLAG2_FAST          AV_CODEC_FLAG2_FAST
#define CODEC_FLAG2_NO_OUTPUT     AV_CODEC_FLAG2_NO_OUTPUT
#define CODEC_FLAG2_LOCAL_HEADER  AV_CODEC_FLAG2_LOCAL_HEADER
#define CODEC_FLAG2_DROP_FRAME_TIMECODE AV_CODEC_FLAG2_DROP_FRAME_TIMECODE
#define CODEC_FLAG2_IGNORE_CROP   AV_CODEC_FLAG2_IGNORE_CROP
 
#define CODEC_FLAG2_CHUNKS        AV_CODEC_FLAG2_CHUNKS
#define CODEC_FLAG2_SHOW_ALL      AV_CODEC_FLAG2_SHOW_ALL
#define CODEC_FLAG2_EXPORT_MVS    AV_CODEC_FLAG2_EXPORT_MVS
#define CODEC_FLAG2_SKIP_MANUAL   AV_CODEC_FLAG2_SKIP_MANUAL
 
#define CODEC_CAP_DRAW_HORIZ_BAND AV_CODEC_CAP_DRAW_HORIZ_BAND 
 
#define CODEC_CAP_DR1             AV_CODEC_CAP_DR1
#define CODEC_CAP_TRUNCATED       AV_CODEC_CAP_TRUNCATED
 
#define CODEC_CAP_HWACCEL         0x0010
 
#define CODEC_CAP_DELAY           AV_CODEC_CAP_DELAY
 
#define CODEC_CAP_SMALL_LAST_FRAME AV_CODEC_CAP_SMALL_LAST_FRAME
 
#define CODEC_CAP_HWACCEL_VDPAU    AV_CODEC_CAP_HWACCEL_VDPAU
 
#define CODEC_CAP_SUBFRAMES        AV_CODEC_CAP_SUBFRAMES
 
#define CODEC_CAP_EXPERIMENTAL     AV_CODEC_CAP_EXPERIMENTAL
 
#define CODEC_CAP_CHANNEL_CONF     AV_CODEC_CAP_CHANNEL_CONF
 
#define CODEC_CAP_NEG_LINESIZES    0x0800
 
#define CODEC_CAP_FRAME_THREADS    AV_CODEC_CAP_FRAME_THREADS
 
#define CODEC_CAP_SLICE_THREADS    AV_CODEC_CAP_SLICE_THREADS
 
#define CODEC_CAP_PARAM_CHANGE     AV_CODEC_CAP_PARAM_CHANGE
 
#define CODEC_CAP_AUTO_THREADS     AV_CODEC_CAP_AUTO_THREADS
 
#define CODEC_CAP_VARIABLE_FRAME_SIZE AV_CODEC_CAP_VARIABLE_FRAME_SIZE
 
#define CODEC_CAP_INTRA_ONLY       AV_CODEC_CAP_INTRA_ONLY
 
#define CODEC_CAP_LOSSLESS         AV_CODEC_CAP_LOSSLESS
 
#define HWACCEL_CODEC_CAP_EXPERIMENTAL     0x0200
 
#define MB_TYPE_INTRA4x4   0x0001
#define MB_TYPE_INTRA16x16 0x0002 
#define MB_TYPE_INTRA_PCM  0x0004 
#define MB_TYPE_16x16      0x0008
#define MB_TYPE_16x8       0x0010
#define MB_TYPE_8x16       0x0020
#define MB_TYPE_8x8        0x0040
#define MB_TYPE_INTERLACED 0x0080
#define MB_TYPE_DIRECT2    0x0100 
#define MB_TYPE_ACPRED     0x0200
#define MB_TYPE_GMC        0x0400
#define MB_TYPE_SKIP       0x0800
#define MB_TYPE_P0L0       0x1000
#define MB_TYPE_P1L0       0x2000
#define MB_TYPE_P0L1       0x4000
#define MB_TYPE_P1L1       0x8000
#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
#define MB_TYPE_QUANT      0x00010000
#define MB_TYPE_CBP        0x00020000
 
typedef struct AVPanScan{
    
    int id;
 
    int width;
    int height;
 
    int16_t position[3][2];
}AVPanScan;
 
typedef struct AVCPBProperties {
    
    int max_bitrate;
    
    int min_bitrate;
    
    int avg_bitrate;
 
    int buffer_size;
 
    uint64_t vbv_delay;
} AVCPBProperties;
 
#define FF_QSCALE_TYPE_MPEG1 0
#define FF_QSCALE_TYPE_MPEG2 1
#define FF_QSCALE_TYPE_H264  2
#define FF_QSCALE_TYPE_VP56  3
 
#define AV_GET_BUFFER_FLAG_REF (1 << 0)
 
enum AVPacketSideDataType {
    
    AV_PKT_DATA_PALETTE,
 
    AV_PKT_DATA_NEW_EXTRADATA,
 
    AV_PKT_DATA_PARAM_CHANGE,
 
    AV_PKT_DATA_H263_MB_INFO,
 
    AV_PKT_DATA_REPLAYGAIN,
 
    AV_PKT_DATA_DISPLAYMATRIX,
 
    AV_PKT_DATA_STEREO3D,
 
    AV_PKT_DATA_AUDIO_SERVICE_TYPE,
 
    AV_PKT_DATA_QUALITY_STATS,
 
    AV_PKT_DATA_FALLBACK_TRACK,
 
    AV_PKT_DATA_CPB_PROPERTIES,
 
    AV_PKT_DATA_SKIP_SAMPLES=70,
 
    AV_PKT_DATA_JP_DUALMONO,
 
    AV_PKT_DATA_STRINGS_METADATA,
 
    AV_PKT_DATA_SUBTITLE_POSITION,
 
    AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
 
    AV_PKT_DATA_WEBVTT_IDENTIFIER,
 
    AV_PKT_DATA_WEBVTT_SETTINGS,
 
    AV_PKT_DATA_METADATA_UPDATE,
 
    AV_PKT_DATA_MPEGTS_STREAM_ID,
 
    AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
 
    AV_PKT_DATA_SPHERICAL,
 
    AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
 
    AV_PKT_DATA_A53_CC,
 
    AV_PKT_DATA_NB
};
 
#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS 
 
typedef struct AVPacketSideData {
    uint8_t *data;
    int      size;
    enum AVPacketSideDataType type;
} AVPacketSideData;
 
typedef struct AVPacket {
    
    AVBufferRef *buf;
    
    int64_t pts;
    
    int64_t dts;
    uint8_t *data;
    int   size;
    int   stream_index;
    
    int   flags;
    
    AVPacketSideData *side_data;
    int side_data_elems;
 
    int64_t duration;
 
    int64_t pos;                            
 
    attribute_deprecated
    int64_t convergence_duration;
} AVPacket;
#define AV_PKT_FLAG_KEY     0x0001 
#define AV_PKT_FLAG_CORRUPT 0x0002 
 
#define AV_PKT_FLAG_DISCARD   0x0004
 
#define AV_PKT_FLAG_TRUSTED   0x0008
 
enum AVSideDataParamChangeFlags {
    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT  = 0x0001,
    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
    AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE    = 0x0004,
    AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS     = 0x0008,
};
 
struct AVCodecInternal;
 
enum AVFieldOrder {
    AV_FIELD_UNKNOWN,
    AV_FIELD_PROGRESSIVE,
    AV_FIELD_TT,          
    AV_FIELD_BB,          
    AV_FIELD_TB,          
    AV_FIELD_BT,          
};
 
typedef struct AVCodecContext {
    
    const AVClass *av_class;
    int log_level_offset;
 
    enum AVMediaType codec_type; 
    const struct AVCodec  *codec;
    
    attribute_deprecated
    char             codec_name[32];
    enum AVCodecID     codec_id; 
 
    unsigned int codec_tag;
 
    attribute_deprecated
    unsigned int stream_codec_tag;
 
    void *priv_data;
 
    struct AVCodecInternal *internal;
 
    void *opaque;
 
    int64_t bit_rate;
 
    int bit_rate_tolerance;
 
    int global_quality;
 
    int compression_level;
#define FF_COMPRESSION_DEFAULT -1
 
    int flags;
 
    int flags2;
 
    uint8_t *extradata;
    int extradata_size;
 
    AVRational time_base;
 
    int ticks_per_frame;
 
    int delay;
 
    int width, height;
 
    int coded_width, coded_height;
 
#define FF_ASPECT_EXTENDED 15
 
    int gop_size;
 
    enum AVPixelFormat pix_fmt;
 
    attribute_deprecated int me_method;
 
    void (*draw_horiz_band)(struct AVCodecContext *s,
                            const AVFrame *src, int offset[AV_NUM_DATA_POINTERS],
                            int y, int type, int height);
 
    enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
 
    int max_b_frames;
 
    float b_quant_factor;
 
    attribute_deprecated int rc_strategy;
#define FF_RC_STRATEGY_XVID 1
 
    attribute_deprecated
    int b_frame_strategy;
 
    float b_quant_offset;
 
    int has_b_frames;
 
    attribute_deprecated
    int mpeg_quant;
 
    float i_quant_factor;
 
    float i_quant_offset;
 
    float lumi_masking;
 
    float temporal_cplx_masking;
 
    float spatial_cplx_masking;
 
    float p_masking;
 
    float dark_masking;
 
    int slice_count;
 
    attribute_deprecated
     int prediction_method;
#define FF_PRED_LEFT   0
#define FF_PRED_PLANE  1
#define FF_PRED_MEDIAN 2
 
    int *slice_offset;
 
    AVRational sample_aspect_ratio;
 
    int me_cmp;
    
    int me_sub_cmp;
    
    int mb_cmp;
    
    int ildct_cmp;
#define FF_CMP_SAD          0
#define FF_CMP_SSE          1
#define FF_CMP_SATD         2
#define FF_CMP_DCT          3
#define FF_CMP_PSNR         4
#define FF_CMP_BIT          5
#define FF_CMP_RD           6
#define FF_CMP_ZERO         7
#define FF_CMP_VSAD         8
#define FF_CMP_VSSE         9
#define FF_CMP_NSSE         10
#define FF_CMP_W53          11
#define FF_CMP_W97          12
#define FF_CMP_DCTMAX       13
#define FF_CMP_DCT264       14
#define FF_CMP_MEDIAN_SAD   15
#define FF_CMP_CHROMA       256
 
    int dia_size;
 
    int last_predictor_count;
 
    attribute_deprecated
    int pre_me;
 
    int me_pre_cmp;
 
    int pre_dia_size;
 
    int me_subpel_quality;
 
    attribute_deprecated int dtg_active_format;
#define FF_DTG_AFD_SAME         8
#define FF_DTG_AFD_4_3          9
#define FF_DTG_AFD_16_9         10
#define FF_DTG_AFD_14_9         11
#define FF_DTG_AFD_4_3_SP_14_9  13
#define FF_DTG_AFD_16_9_SP_14_9 14
#define FF_DTG_AFD_SP_4_3       15
 
    int me_range;
 
    attribute_deprecated int intra_quant_bias;
#define FF_DEFAULT_QUANT_BIAS 999999
 
    attribute_deprecated int inter_quant_bias;
 
    int slice_flags;
#define SLICE_FLAG_CODED_ORDER    0x0001 
#define SLICE_FLAG_ALLOW_FIELD    0x0002 
#define SLICE_FLAG_ALLOW_PLANE    0x0004 
 
    attribute_deprecated int xvmc_acceleration;
 
    int mb_decision;
#define FF_MB_DECISION_SIMPLE 0        
#define FF_MB_DECISION_BITS   1        
#define FF_MB_DECISION_RD     2        
 
    uint16_t *intra_matrix;
 
    uint16_t *inter_matrix;
 
    attribute_deprecated
    int scenechange_threshold;
 
    attribute_deprecated
    int noise_reduction;
 
    attribute_deprecated
    int me_threshold;
 
    attribute_deprecated
    int mb_threshold;
 
    int intra_dc_precision;
 
    int skip_top;
 
    int skip_bottom;
 
    attribute_deprecated
    float border_masking;
 
    int mb_lmin;
 
    int mb_lmax;
 
    attribute_deprecated
    int me_penalty_compensation;
 
    int bidir_refine;
 
    attribute_deprecated
    int brd_scale;
 
    int keyint_min;
 
    int refs;
 
    attribute_deprecated
    int chromaoffset;
 
    attribute_deprecated int scenechange_factor;
 
    int mv0_threshold;
 
    attribute_deprecated
    int b_sensitivity;
 
    enum AVColorPrimaries color_primaries;
 
    enum AVColorTransferCharacteristic color_trc;
 
    enum AVColorSpace colorspace;
 
    enum AVColorRange color_range;
 
    enum AVChromaLocation chroma_sample_location;
 
    int slices;
 
    enum AVFieldOrder field_order;
 
    int sample_rate; 
    int channels;    
 
    enum AVSampleFormat sample_fmt;  
 
    int frame_size;
 
    int frame_number;
 
    int block_align;
 
    int cutoff;
 
    uint64_t channel_layout;
 
    uint64_t request_channel_layout;
 
    enum AVAudioServiceType audio_service_type;
 
    enum AVSampleFormat request_sample_fmt;
 
    int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags);
 
    attribute_deprecated
    int refcounted_frames;
 
    float qcompress;  
    float qblur;      
 
    int qmin;
 
    int qmax;
 
    int max_qdiff;
 
    attribute_deprecated
    float rc_qsquish;
 
    attribute_deprecated
    float rc_qmod_amp;
    attribute_deprecated
    int rc_qmod_freq;
 
    int rc_buffer_size;
 
    int rc_override_count;
    RcOverride *rc_override;
 
    attribute_deprecated
    const char *rc_eq;
 
    int64_t rc_max_rate;
 
    int64_t rc_min_rate;
 
    attribute_deprecated
    float rc_buffer_aggressivity;
 
    attribute_deprecated
    float rc_initial_cplx;
 
    float rc_max_available_vbv_use;
 
    float rc_min_vbv_overflow_use;
 
    int rc_initial_buffer_occupancy;
 
#define FF_CODER_TYPE_VLC       0
#define FF_CODER_TYPE_AC        1
#define FF_CODER_TYPE_RAW       2
#define FF_CODER_TYPE_RLE       3
#define FF_CODER_TYPE_DEFLATE   4
    
    attribute_deprecated
    int coder_type;
 
    attribute_deprecated
    int context_model;
 
    attribute_deprecated
    int lmin;
 
    attribute_deprecated
    int lmax;
 
    attribute_deprecated
    int frame_skip_threshold;
 
    attribute_deprecated
    int frame_skip_factor;
 
    attribute_deprecated
    int frame_skip_exp;
 
    attribute_deprecated
    int frame_skip_cmp;
 
    int trellis;
 
    attribute_deprecated
    int min_prediction_order;
 
    attribute_deprecated
    int max_prediction_order;
 
    attribute_deprecated
    int64_t timecode_frame_start;
 
    attribute_deprecated
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
 
    attribute_deprecated
    int rtp_payload_size;   
                            
    attribute_deprecated
    int mv_bits;
    attribute_deprecated
    int header_bits;
    attribute_deprecated
    int i_tex_bits;
    attribute_deprecated
    int p_tex_bits;
    attribute_deprecated
    int i_count;
    attribute_deprecated
    int p_count;
    attribute_deprecated
    int skip_count;
    attribute_deprecated
    int misc_bits;
 
    attribute_deprecated
    int frame_bits;
 
    char *stats_out;
 
    char *stats_in;
 
    int workaround_bugs;
#define FF_BUG_AUTODETECT       1  
#define FF_BUG_OLD_MSMPEG4      2
#define FF_BUG_XVID_ILACE       4
#define FF_BUG_UMP4             8
#define FF_BUG_NO_PADDING       16
#define FF_BUG_AMV              32
#define FF_BUG_AC_VLC           0  
#define FF_BUG_QPEL_CHROMA      64
#define FF_BUG_STD_QPEL         128
#define FF_BUG_QPEL_CHROMA2     256
#define FF_BUG_DIRECT_BLOCKSIZE 512
#define FF_BUG_EDGE             1024
#define FF_BUG_HPEL_CHROMA      2048
#define FF_BUG_DC_CLIP          4096
#define FF_BUG_MS               8192 
#define FF_BUG_TRUNCATED       16384
#define FF_BUG_IEDGE           32768
 
    int strict_std_compliance;
#define FF_COMPLIANCE_VERY_STRICT   2 
#define FF_COMPLIANCE_STRICT        1 
#define FF_COMPLIANCE_NORMAL        0
#define FF_COMPLIANCE_UNOFFICIAL   -1 
#define FF_COMPLIANCE_EXPERIMENTAL -2 
 
    int error_concealment;
#define FF_EC_GUESS_MVS   1
#define FF_EC_DEBLOCK     2
#define FF_EC_FAVOR_INTER 256
 
    int debug;
#define FF_DEBUG_PICT_INFO   1
#define FF_DEBUG_RC          2
#define FF_DEBUG_BITSTREAM   4
#define FF_DEBUG_MB_TYPE     8
#define FF_DEBUG_QP          16
 
#define FF_DEBUG_MV          32
#define FF_DEBUG_DCT_COEFF   0x00000040
#define FF_DEBUG_SKIP        0x00000080
#define FF_DEBUG_STARTCODE   0x00000100
#define FF_DEBUG_PTS         0x00000200
#define FF_DEBUG_ER          0x00000400
#define FF_DEBUG_MMCO        0x00000800
#define FF_DEBUG_BUGS        0x00001000
#define FF_DEBUG_VIS_QP      0x00002000
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
#define FF_DEBUG_BUFFERS     0x00008000
#define FF_DEBUG_THREADS     0x00010000
#define FF_DEBUG_GREEN_MD    0x00800000
#define FF_DEBUG_NOMC        0x01000000
 
    int debug_mv;
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 
 
    int err_recognition;
 
#define AV_EF_CRCCHECK  (1<<0)
#define AV_EF_BITSTREAM (1<<1)          
#define AV_EF_BUFFER    (1<<2)          
#define AV_EF_EXPLODE   (1<<3)          
 
#define AV_EF_IGNORE_ERR (1<<15)        
#define AV_EF_CAREFUL    (1<<16)        
#define AV_EF_COMPLIANT  (1<<17)        
#define AV_EF_AGGRESSIVE (1<<18)        
 
    int64_t reordered_opaque;
 
    struct AVHWAccel *hwaccel;
 
    void *hwaccel_context;
 
    uint64_t error[AV_NUM_DATA_POINTERS];
 
    int dct_algo;
#define FF_DCT_AUTO    0
#define FF_DCT_FASTINT 1
#define FF_DCT_INT     2
#define FF_DCT_MMX     3
#define FF_DCT_ALTIVEC 5
#define FF_DCT_FAAN    6
 
    int idct_algo;
#define FF_IDCT_AUTO          0
#define FF_IDCT_INT           1
#define FF_IDCT_SIMPLE        2
#define FF_IDCT_SIMPLEMMX     3
#define FF_IDCT_ARM           7
#define FF_IDCT_ALTIVEC       8
#define FF_IDCT_SH4           9
#define FF_IDCT_SIMPLEARM     10
#define FF_IDCT_IPP           13
#define FF_IDCT_XVID          14
#define FF_IDCT_XVIDMMX       14
#define FF_IDCT_SIMPLEARMV5TE 16
#define FF_IDCT_SIMPLEARMV6   17
#define FF_IDCT_SIMPLEVIS     18
#define FF_IDCT_FAAN          20
#define FF_IDCT_SIMPLENEON    22
#define FF_IDCT_SIMPLEALPHA   23
#define FF_IDCT_NONE          24 
#define FF_IDCT_SIMPLEAUTO    128
 
     int bits_per_coded_sample;
 
    int bits_per_raw_sample;
 
     int lowres;
 
    attribute_deprecated AVFrame *coded_frame;
 
    int thread_count;
 
    int thread_type;
#define FF_THREAD_FRAME   1 
#define FF_THREAD_SLICE   2 
 
    int active_thread_type;
 
    int thread_safe_callbacks;
 
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
 
    int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
 
     int nsse_weight;
 
     int profile;
#define FF_PROFILE_UNKNOWN -99
#define FF_PROFILE_RESERVED -100
 
#define FF_PROFILE_AAC_MAIN 0
#define FF_PROFILE_AAC_LOW  1
#define FF_PROFILE_AAC_SSR  2
#define FF_PROFILE_AAC_LTP  3
#define FF_PROFILE_AAC_HE   4
#define FF_PROFILE_AAC_HE_V2 28
#define FF_PROFILE_AAC_LD   22
#define FF_PROFILE_AAC_ELD  38
#define FF_PROFILE_MPEG2_AAC_LOW 128
#define FF_PROFILE_MPEG2_AAC_HE  131
 
#define FF_PROFILE_DNXHD         0
#define FF_PROFILE_DNXHR_LB      1
#define FF_PROFILE_DNXHR_SQ      2
#define FF_PROFILE_DNXHR_HQ      3
#define FF_PROFILE_DNXHR_HQX     4
#define FF_PROFILE_DNXHR_444     5
 
#define FF_PROFILE_DTS         20
#define FF_PROFILE_DTS_ES      30
#define FF_PROFILE_DTS_96_24   40
#define FF_PROFILE_DTS_HD_HRA  50
#define FF_PROFILE_DTS_HD_MA   60
#define FF_PROFILE_DTS_EXPRESS 70
 
#define FF_PROFILE_MPEG2_422    0
#define FF_PROFILE_MPEG2_HIGH   1
#define FF_PROFILE_MPEG2_SS     2
#define FF_PROFILE_MPEG2_SNR_SCALABLE  3
#define FF_PROFILE_MPEG2_MAIN   4
#define FF_PROFILE_MPEG2_SIMPLE 5
 
#define FF_PROFILE_H264_CONSTRAINED  (1<<9)  
#define FF_PROFILE_H264_INTRA        (1<<11) 
 
#define FF_PROFILE_H264_BASELINE             66
#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
#define FF_PROFILE_H264_MAIN                 77
#define FF_PROFILE_H264_EXTENDED             88
#define FF_PROFILE_H264_HIGH                 100
#define FF_PROFILE_H264_HIGH_10              110
#define FF_PROFILE_H264_HIGH_10_INTRA        (110|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_MULTIVIEW_HIGH       118
#define FF_PROFILE_H264_HIGH_422             122
#define FF_PROFILE_H264_HIGH_422_INTRA       (122|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_STEREO_HIGH          128
#define FF_PROFILE_H264_HIGH_444             144
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE  244
#define FF_PROFILE_H264_HIGH_444_INTRA       (244|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_CAVLC_444            44
 
#define FF_PROFILE_VC1_SIMPLE   0
#define FF_PROFILE_VC1_MAIN     1
#define FF_PROFILE_VC1_COMPLEX  2
#define FF_PROFILE_VC1_ADVANCED 3
 
#define FF_PROFILE_MPEG4_SIMPLE                     0
#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE            1
#define FF_PROFILE_MPEG4_CORE                       2
#define FF_PROFILE_MPEG4_MAIN                       3
#define FF_PROFILE_MPEG4_N_BIT                      4
#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE           5
#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION      6
#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE     7
#define FF_PROFILE_MPEG4_HYBRID                     8
#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME         9
#define FF_PROFILE_MPEG4_CORE_SCALABLE             10
#define FF_PROFILE_MPEG4_ADVANCED_CODING           11
#define FF_PROFILE_MPEG4_ADVANCED_CORE             12
#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
#define FF_PROFILE_MPEG4_SIMPLE_STUDIO             14
#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE           15
 
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0   1
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1   2
#define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION  32768
#define FF_PROFILE_JPEG2000_DCINEMA_2K              3
#define FF_PROFILE_JPEG2000_DCINEMA_4K              4
 
#define FF_PROFILE_VP9_0                            0
#define FF_PROFILE_VP9_1                            1
#define FF_PROFILE_VP9_2                            2
#define FF_PROFILE_VP9_3                            3
 
#define FF_PROFILE_HEVC_MAIN                        1
#define FF_PROFILE_HEVC_MAIN_10                     2
#define FF_PROFILE_HEVC_MAIN_STILL_PICTURE          3
#define FF_PROFILE_HEVC_REXT                        4
 
     int level;
#define FF_LEVEL_UNKNOWN -99
 
    enum AVDiscard skip_loop_filter;
 
    enum AVDiscard skip_idct;
 
    enum AVDiscard skip_frame;
 
    uint8_t *subtitle_header;
    int subtitle_header_size;
 
    attribute_deprecated
    int error_rate;
 
    attribute_deprecated
    uint64_t vbv_delay;
 
    attribute_deprecated
    int side_data_only_packets;
 
    int initial_padding;
 
    AVRational framerate;
 
    enum AVPixelFormat sw_pix_fmt;
 
    AVRational pkt_timebase;
 
    const AVCodecDescriptor *codec_descriptor;
 
    int64_t pts_correction_num_faulty_pts; 
    int64_t pts_correction_num_faulty_dts; 
    int64_t pts_correction_last_pts;       
    int64_t pts_correction_last_dts;       
 
    char *sub_charenc;
 
    int sub_charenc_mode;
#define FF_SUB_CHARENC_MODE_DO_NOTHING  -1  
#define FF_SUB_CHARENC_MODE_AUTOMATIC    0  
#define FF_SUB_CHARENC_MODE_PRE_DECODER  1  
 
    int skip_alpha;
 
    int seek_preroll;
 
    uint16_t *chroma_intra_matrix;
 
    uint8_t *dump_separator;
 
    char *codec_whitelist;
 
    unsigned properties;
#define FF_CODEC_PROPERTY_LOSSLESS        0x00000001
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS 0x00000002
 
    AVPacketSideData *coded_side_data;
    int            nb_coded_side_data;
 
    AVBufferRef *hw_frames_ctx;
 
    int sub_text_format;
#define FF_SUB_TEXT_FMT_ASS              0
#define FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS 1
 
    int trailing_padding;
 
    int64_t max_pixels;
 
    AVBufferRef *hw_device_ctx;
 
    int hwaccel_flags;
 
    int apply_cropping;
} AVCodecContext;
 
AVRational av_codec_get_pkt_timebase         (const AVCodecContext *avctx);
void       av_codec_set_pkt_timebase         (AVCodecContext *avctx, AVRational val);
 
const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx);
void                     av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc);
 
unsigned av_codec_get_codec_properties(const AVCodecContext *avctx);
 
int  av_codec_get_lowres(const AVCodecContext *avctx);
void av_codec_set_lowres(AVCodecContext *avctx, int val);
 
int  av_codec_get_seek_preroll(const AVCodecContext *avctx);
void av_codec_set_seek_preroll(AVCodecContext *avctx, int val);
 
uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx);
void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val);
 
typedef struct AVProfile {
    int profile;
    const char *name; 
} AVProfile;
 
typedef struct AVCodecDefault AVCodecDefault;
 
struct AVSubtitle;
 
typedef struct AVCodec {
    
    const char *name;
    
    const char *long_name;
    enum AVMediaType type;
    enum AVCodecID id;
    
    int capabilities;
    const AVRational *supported_framerates; 
    const enum AVPixelFormat *pix_fmts;     
    const int *supported_samplerates;       
    const enum AVSampleFormat *sample_fmts; 
    const uint64_t *channel_layouts;         
    uint8_t max_lowres;                     
    const AVClass *priv_class;              
    const AVProfile *profiles;              
 
    int priv_data_size;
    struct AVCodec *next;
    
    int (*init_thread_copy)(AVCodecContext *);
    
    int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
    
    const AVCodecDefault *defaults;
 
    void (*init_static_data)(struct AVCodec *codec);
 
    int (*init)(AVCodecContext *);
    int (*encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size,
                      const struct AVSubtitle *sub);
    
    int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame,
                   int *got_packet_ptr);
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
    int (*close)(AVCodecContext *);
    
    int (*send_frame)(AVCodecContext *avctx, const AVFrame *frame);
    int (*receive_packet)(AVCodecContext *avctx, AVPacket *avpkt);
 
    int (*receive_frame)(AVCodecContext *avctx, AVFrame *frame);
    
    void (*flush)(AVCodecContext *);
    
    int caps_internal;
 
    const char *bsfs;
} AVCodec;
 
int av_codec_get_max_lowres(const AVCodec *codec);
 
struct MpegEncContext;
 
typedef struct AVHWAccel {
    
    const char *name;
 
    enum AVMediaType type;
 
    enum AVCodecID id;
 
    enum AVPixelFormat pix_fmt;
 
    int capabilities;
 
    struct AVHWAccel *next;
 
    int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame);
 
    int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
 
    int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
 
    int (*end_frame)(AVCodecContext *avctx);
 
    int frame_priv_data_size;
 
    void (*decode_mb)(struct MpegEncContext *s);
 
    int (*init)(AVCodecContext *avctx);
 
    int (*uninit)(AVCodecContext *avctx);
 
    int priv_data_size;
 
    int caps_internal;
} AVHWAccel;
 
#define AV_HWACCEL_CODEC_CAP_EXPERIMENTAL 0x0200
 
#define AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0)
 
#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1)
 
#define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH (1 << 2)
 
typedef struct AVPicture {
    attribute_deprecated
    uint8_t *data[AV_NUM_DATA_POINTERS];    
    attribute_deprecated
    int linesize[AV_NUM_DATA_POINTERS];     
} AVPicture;
 
enum AVSubtitleType {
    SUBTITLE_NONE,
 
    SUBTITLE_BITMAP,                
 
    SUBTITLE_TEXT,
 
    SUBTITLE_ASS,
};
 
#define AV_SUBTITLE_FLAG_FORCED 0x00000001
 
typedef struct AVSubtitleRect {
    int x;         
    int y;         
    int w;         
    int h;         
    int nb_colors; 
 
    attribute_deprecated
    AVPicture pict;
    
    uint8_t *data[4];
    int linesize[4];
 
    enum AVSubtitleType type;
 
    char *text;                     
 
    char *ass;
 
    int flags;
} AVSubtitleRect;
 
typedef struct AVSubtitle {
    uint16_t format; 
    uint32_t start_display_time; 
    uint32_t end_display_time; 
    unsigned num_rects;
    AVSubtitleRect **rects;
    int64_t pts;    
} AVSubtitle;
 
typedef struct AVCodecParameters {
    
    enum AVMediaType codec_type;
    
    enum AVCodecID   codec_id;
    
    uint32_t         codec_tag;
 
    uint8_t *extradata;
    
    int      extradata_size;
 
    int format;
 
    int64_t bit_rate;
 
    int bits_per_coded_sample;
 
    int bits_per_raw_sample;
 
    int profile;
    int level;
 
    int width;
    int height;
 
    AVRational sample_aspect_ratio;
 
    enum AVFieldOrder                  field_order;
 
    enum AVColorRange                  color_range;
    enum AVColorPrimaries              color_primaries;
    enum AVColorTransferCharacteristic color_trc;
    enum AVColorSpace                  color_space;
    enum AVChromaLocation              chroma_location;
 
    int video_delay;
 
    uint64_t channel_layout;
    
    int      channels;
    
    int      sample_rate;
    
    int      block_align;
    
    int      frame_size;
 
    int initial_padding;
    
    int trailing_padding;
    
    int seek_preroll;
} AVCodecParameters;
 
AVCodec *av_codec_next(const AVCodec *c);
 
unsigned avcodec_version(void);
 
const char *avcodec_configuration(void);
 
const char *avcodec_license(void);
 
void avcodec_register(AVCodec *codec);
 
void avcodec_register_all(void);
 
AVCodecContext *avcodec_alloc_context3(const AVCodec *codec);
 
void avcodec_free_context(AVCodecContext **avctx);
 
int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec);
 
const AVClass *avcodec_get_class(void);
 
const AVClass *avcodec_get_frame_class(void);
 
const AVClass *avcodec_get_subtitle_rect_class(void);
 
attribute_deprecated
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
 
AVCodecParameters *avcodec_parameters_alloc(void);
 
void avcodec_parameters_free(AVCodecParameters **par);
 
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
 
int avcodec_parameters_from_context(AVCodecParameters *par,
                                    const AVCodecContext *codec);
 
int avcodec_parameters_to_context(AVCodecContext *codec,
                                  const AVCodecParameters *par);
 
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
 
int avcodec_close(AVCodecContext *avctx);
 
void avsubtitle_free(AVSubtitle *sub);
 
AVPacket *av_packet_alloc(void);
 
AVPacket *av_packet_clone(const AVPacket *src);
 
void av_packet_free(AVPacket **pkt);
 
void av_init_packet(AVPacket *pkt);
 
int av_new_packet(AVPacket *pkt, int size);
 
void av_shrink_packet(AVPacket *pkt, int size);
 
int av_grow_packet(AVPacket *pkt, int grow_by);
 
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
 
attribute_deprecated
int av_dup_packet(AVPacket *pkt);
 
attribute_deprecated
int av_copy_packet(AVPacket *dst, const AVPacket *src);
 
attribute_deprecated
int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src);
 
attribute_deprecated
void av_free_packet(AVPacket *pkt);
 
uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
                                 int size);
 
int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
                            uint8_t *data, size_t size);
 
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
                               int size);
 
uint8_t* av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
                                 int *size);
 
attribute_deprecated
int av_packet_merge_side_data(AVPacket *pkt);
 
attribute_deprecated
int av_packet_split_side_data(AVPacket *pkt);
 
const char *av_packet_side_data_name(enum AVPacketSideDataType type);
 
uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size);
 
int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict);
 
void av_packet_free_side_data(AVPacket *pkt);
 
int av_packet_ref(AVPacket *dst, const AVPacket *src);
 
void av_packet_unref(AVPacket *pkt);
 
void av_packet_move_ref(AVPacket *dst, AVPacket *src);
 
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
 
void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
 
AVCodec *avcodec_find_decoder(enum AVCodecID id);
 
AVCodec *avcodec_find_decoder_by_name(const char *name);
 
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags);
 
attribute_deprecated
unsigned avcodec_get_edge_width(void);
 
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
 
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
                               int linesize_align[AV_NUM_DATA_POINTERS]);
 
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos);
 
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos);
 
attribute_deprecated
int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
                          int *got_frame_ptr, const AVPacket *avpkt);
 
attribute_deprecated
int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
                         int *got_picture_ptr,
                         const AVPacket *avpkt);
 
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
                            int *got_sub_ptr,
                            AVPacket *avpkt);
 
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt);
 
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame);
 
int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame);
 
int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt);
 
enum AVPictureStructure {
    AV_PICTURE_STRUCTURE_UNKNOWN,      
    AV_PICTURE_STRUCTURE_TOP_FIELD,    
    AV_PICTURE_STRUCTURE_BOTTOM_FIELD, 
    AV_PICTURE_STRUCTURE_FRAME,        
};
 
typedef struct AVCodecParserContext {
    void *priv_data;
    struct AVCodecParser *parser;
    int64_t frame_offset; 
    int64_t cur_offset; 
 
    int64_t next_frame_offset; 
    
    int pict_type; 
    
    int repeat_pict; 
    int64_t pts;     
    int64_t dts;     
 
    int64_t last_pts;
    int64_t last_dts;
    int fetch_timestamp;
 
#define AV_PARSER_PTS_NB 4
    int cur_frame_start_index;
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
 
    int flags;
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
#define PARSER_FLAG_ONCE                      0x0002
 
#define PARSER_FLAG_FETCHED_OFFSET            0x0004
#define PARSER_FLAG_USE_CODEC_TS              0x1000
 
    int64_t offset;      
    int64_t cur_frame_end[AV_PARSER_PTS_NB];
 
    int key_frame;
 
    attribute_deprecated
    int64_t convergence_duration;
 
    int dts_sync_point;
 
    int dts_ref_dts_delta;
 
    int pts_dts_delta;
 
    int64_t cur_frame_pos[AV_PARSER_PTS_NB];
 
    int64_t pos;
 
    int64_t last_pos;
 
    int duration;
 
    enum AVFieldOrder field_order;
 
    enum AVPictureStructure picture_structure;
 
    int output_picture_number;
 
    int width;
    int height;
 
    int coded_width;
    int coded_height;
 
    int format;
} AVCodecParserContext;
 
typedef struct AVCodecParser {
    int codec_ids[5]; 
    int priv_data_size;
    int (*parser_init)(AVCodecParserContext *s);
    
    int (*parser_parse)(AVCodecParserContext *s,
                        AVCodecContext *avctx,
                        const uint8_t **poutbuf, int *poutbuf_size,
                        const uint8_t *buf, int buf_size);
    void (*parser_close)(AVCodecParserContext *s);
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
    struct AVCodecParser *next;
} AVCodecParser;
 
AVCodecParser *av_parser_next(const AVCodecParser *c);
 
void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);
 
int av_parser_parse2(AVCodecParserContext *s,
                     AVCodecContext *avctx,
                     uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size,
                     int64_t pts, int64_t dts,
                     int64_t pos);
 
int av_parser_change(AVCodecParserContext *s,
                     AVCodecContext *avctx,
                     uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size, int keyframe);
void av_parser_close(AVCodecParserContext *s);
 
AVCodec *avcodec_find_encoder(enum AVCodecID id);
 
AVCodec *avcodec_find_encoder_by_name(const char *name);
 
attribute_deprecated
int avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt,
                          const AVFrame *frame, int *got_packet_ptr);
 
attribute_deprecated
int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt,
                          const AVFrame *frame, int *got_packet_ptr);
 
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
                            const AVSubtitle *sub);
 
struct ReSampleContext;
struct AVResampleContext;
 
typedef struct ReSampleContext ReSampleContext;
 
attribute_deprecated
ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
                                        int output_rate, int input_rate,
                                        enum AVSampleFormat sample_fmt_out,
                                        enum AVSampleFormat sample_fmt_in,
                                        int filter_length, int log2_phase_count,
                                        int linear, double cutoff);
 
attribute_deprecated
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
 
attribute_deprecated
void audio_resample_close(ReSampleContext *s);
 
attribute_deprecated
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
 
attribute_deprecated
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
 
attribute_deprecated
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
attribute_deprecated
void av_resample_close(struct AVResampleContext *c);
 
attribute_deprecated
int avpicture_alloc(AVPicture *picture, enum AVPixelFormat pix_fmt, int width, int height);
 
attribute_deprecated
void avpicture_free(AVPicture *picture);
 
attribute_deprecated
int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
                   enum AVPixelFormat pix_fmt, int width, int height);
 
attribute_deprecated
int avpicture_layout(const AVPicture *src, enum AVPixelFormat pix_fmt,
                     int width, int height,
                     unsigned char *dest, int dest_size);
 
attribute_deprecated
int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height);
 
attribute_deprecated
void av_picture_copy(AVPicture *dst, const AVPicture *src,
                     enum AVPixelFormat pix_fmt, int width, int height);
 
attribute_deprecated
int av_picture_crop(AVPicture *dst, const AVPicture *src,
                    enum AVPixelFormat pix_fmt, int top_band, int left_band);
 
attribute_deprecated
int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum AVPixelFormat pix_fmt,
            int padtop, int padbottom, int padleft, int padright, int *color);
 
attribute_deprecated
void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift);
 
unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt);
 
int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt,
                             int has_alpha);
 
enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list,
                                            enum AVPixelFormat src_pix_fmt,
                                            int has_alpha, int *loss_ptr);
 
enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
 
attribute_deprecated
enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
 
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
 
attribute_deprecated
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
 
attribute_deprecated
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);
 
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
 
const char *av_get_profile_name(const AVCodec *codec, int profile);
 
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile);
 
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
 
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
                             enum AVSampleFormat sample_fmt, const uint8_t *buf,
                             int buf_size, int align);
 
void avcodec_flush_buffers(AVCodecContext *avctx);
 
int av_get_bits_per_sample(enum AVCodecID codec_id);
 
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
 
int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
 
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes);
 
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes);
 
typedef struct AVBitStreamFilterContext {
    void *priv_data;
    const struct AVBitStreamFilter *filter;
    AVCodecParserContext *parser;
    struct AVBitStreamFilterContext *next;
    
    char *args;
} AVBitStreamFilterContext;
 
typedef struct AVBSFInternal AVBSFInternal;
 
typedef struct AVBSFContext {
    
    const AVClass *av_class;
 
    const struct AVBitStreamFilter *filter;
 
    AVBSFInternal *internal;
 
    void *priv_data;
 
    AVCodecParameters *par_in;
 
    AVCodecParameters *par_out;
 
    AVRational time_base_in;
 
    AVRational time_base_out;
} AVBSFContext;
 
typedef struct AVBitStreamFilter {
    const char *name;
 
    const enum AVCodecID *codec_ids;
 
    const AVClass *priv_class;
 
    int priv_data_size;
    int (*init)(AVBSFContext *ctx);
    int (*filter)(AVBSFContext *ctx, AVPacket *pkt);
    void (*close)(AVBSFContext *ctx);
} AVBitStreamFilter;
 
attribute_deprecated
void av_register_bitstream_filter(AVBitStreamFilter *bsf);
 
attribute_deprecated
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
 
attribute_deprecated
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
                               AVCodecContext *avctx, const char *args,
                               uint8_t **poutbuf, int *poutbuf_size,
                               const uint8_t *buf, int buf_size, int keyframe);
 
attribute_deprecated
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
 
attribute_deprecated
AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f);
 
const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
 
const AVBitStreamFilter *av_bsf_next(void **opaque);
 
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
 
int av_bsf_init(AVBSFContext *ctx);
 
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
 
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
 
void av_bsf_free(AVBSFContext **ctx);
 
const AVClass *av_bsf_get_class(void);
 
typedef struct AVBSFList AVBSFList;
 
AVBSFList *av_bsf_list_alloc(void);
 
void av_bsf_list_free(AVBSFList **lst);
 
int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
 
int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
 
int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
 
int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
 
int av_bsf_get_null_filter(AVBSFContext **bsf);
 
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size);
 
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size);
 
unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
 
attribute_deprecated
void av_log_missing_feature(void *avc, const char *feature, int want_sample);
 
attribute_deprecated
void av_log_ask_for_sample(void *avc, const char *msg, ...) av_printf_format(2, 3);
 
void av_register_hwaccel(AVHWAccel *hwaccel);
 
AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel);
 
enum AVLockOp {
  AV_LOCK_CREATE,  
  AV_LOCK_OBTAIN,  
  AV_LOCK_RELEASE, 
  AV_LOCK_DESTROY, 
};
 
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
 
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
 
const char *avcodec_get_name(enum AVCodecID id);
 
int avcodec_is_open(AVCodecContext *s);
 
int av_codec_is_encoder(const AVCodec *codec);
 
int av_codec_is_decoder(const AVCodec *codec);
 
const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
 
const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
 
const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
 
AVCPBProperties *av_cpb_properties_alloc(size_t *size);
 
#define AVFORMAT_AVFORMAT_H
 
#define AVFORMAT_AVIO_H
 
#define AVFORMAT_VERSION_H
 
#define LIBAVFORMAT_VERSION_MAJOR  57
#define LIBAVFORMAT_VERSION_MINOR  83
#define LIBAVFORMAT_VERSION_MICRO 100
 
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                               LIBAVFORMAT_VERSION_MINOR, \
                                               LIBAVFORMAT_VERSION_MICRO)
#define LIBAVFORMAT_VERSION     AV_VERSION(LIBAVFORMAT_VERSION_MAJOR,   \
                                           LIBAVFORMAT_VERSION_MINOR,   \
                                           LIBAVFORMAT_VERSION_MICRO)
#define LIBAVFORMAT_BUILD       LIBAVFORMAT_VERSION_INT
 
#define LIBAVFORMAT_IDENT       "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
 
#define FF_API_LAVF_BITEXACT            (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_FRAC                (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_CODEC_TB            (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_URL_FEOF                 (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_FMT_RAWPICTURE      (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_COMPUTE_PKT_FIELDS2      (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_OLD_OPEN_CALLBACKS       (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_AVCTX               (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_NOCONST_GET_SIDE_DATA    (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_HTTP_USER_AGENT          (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_HLS_WRAP                 (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_MERGE_SD            (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_LAVF_KEEPSIDE_FLAG       (LIBAVFORMAT_VERSION_MAJOR < 58)
#define FF_API_OLD_ROTATE_API           (LIBAVFORMAT_VERSION_MAJOR < 58)
 
#define FF_API_R_FRAME_RATE            1
 
#define AVIO_SEEKABLE_NORMAL (1 << 0)
 
#define AVIO_SEEKABLE_TIME   (1 << 1)
 
typedef struct AVIOInterruptCB {
    int (*callback)(void*);
    void *opaque;
} AVIOInterruptCB;
 
enum AVIODirEntryType {
    AVIO_ENTRY_UNKNOWN,
    AVIO_ENTRY_BLOCK_DEVICE,
    AVIO_ENTRY_CHARACTER_DEVICE,
    AVIO_ENTRY_DIRECTORY,
    AVIO_ENTRY_NAMED_PIPE,
    AVIO_ENTRY_SYMBOLIC_LINK,
    AVIO_ENTRY_SOCKET,
    AVIO_ENTRY_FILE,
    AVIO_ENTRY_SERVER,
    AVIO_ENTRY_SHARE,
    AVIO_ENTRY_WORKGROUP,
};
 
typedef struct AVIODirEntry {
    char *name;                           
    int type;                             
    int utf8;                             
 
    int64_t size;                         
    int64_t modification_timestamp;       
 
    int64_t access_timestamp;             
 
    int64_t status_change_timestamp;      
 
    int64_t user_id;                      
    int64_t group_id;                     
    int64_t filemode;                     
} AVIODirEntry;
 
typedef struct AVIODirContext {
    struct URLContext *url_context;
} AVIODirContext;
 
enum AVIODataMarkerType {
    
    AVIO_DATA_MARKER_HEADER,
    
    AVIO_DATA_MARKER_SYNC_POINT,
    
    AVIO_DATA_MARKER_BOUNDARY_POINT,
    
    AVIO_DATA_MARKER_UNKNOWN,
    
    AVIO_DATA_MARKER_TRAILER,
    
    AVIO_DATA_MARKER_FLUSH_POINT,
};
 
typedef struct AVIOContext {
    
    const AVClass *av_class;
 
    unsigned char *buffer;  
    int buffer_size;        
    unsigned char *buf_ptr; 
    unsigned char *buf_end; 
 
    void *opaque;           
 
    int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
    int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
    int64_t (*seek)(void *opaque, int64_t offset, int whence);
    int64_t pos;            
    int must_flush;         
    int eof_reached;        
    int write_flag;         
    int max_packet_size;
    unsigned long checksum;
    unsigned char *checksum_ptr;
    unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
    int error;              
    
    int (*read_pause)(void *opaque, int pause);
    
    int64_t (*read_seek)(void *opaque, int stream_index,
                         int64_t timestamp, int flags);
    
    int seekable;
 
    int64_t maxsize;
 
    int direct;
 
    int64_t bytes_read;
 
    int seek_count;
 
    int writeout_count;
 
    int orig_buffer_size;
 
    int short_seek_threshold;
 
    const char *protocol_whitelist;
 
    const char *protocol_blacklist;
 
    int (*write_data_type)(void *opaque, uint8_t *buf, int buf_size,
                           enum AVIODataMarkerType type, int64_t time);
    
    int ignore_boundary_point;
 
    enum AVIODataMarkerType current_type;
    int64_t last_time;
 
    int (*short_seek_get)(void *opaque);
 
    int64_t written;
 
    unsigned char *buf_ptr_max;
 
    int min_packet_size;
} AVIOContext;
 
const char *avio_find_protocol_name(const char *url);
 
int avio_check(const char *url, int flags);
 
int avpriv_io_move(const char *url_src, const char *url_dst);
 
int avpriv_io_delete(const char *url);
 
int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options);
 
int avio_read_dir(AVIODirContext *s, AVIODirEntry **next);
 
int avio_close_dir(AVIODirContext **s);
 
void avio_free_directory_entry(AVIODirEntry **entry);
 
AVIOContext *avio_alloc_context(
                  unsigned char *buffer,
                  int buffer_size,
                  int write_flag,
                  void *opaque,
                  int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                  int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
                  int64_t (*seek)(void *opaque, int64_t offset, int whence));
 
void avio_context_free(AVIOContext **s);
 
void avio_w8(AVIOContext *s, int b);
void avio_write(AVIOContext *s, const unsigned char *buf, int size);
void avio_wl64(AVIOContext *s, uint64_t val);
void avio_wb64(AVIOContext *s, uint64_t val);
void avio_wl32(AVIOContext *s, unsigned int val);
void avio_wb32(AVIOContext *s, unsigned int val);
void avio_wl24(AVIOContext *s, unsigned int val);
void avio_wb24(AVIOContext *s, unsigned int val);
void avio_wl16(AVIOContext *s, unsigned int val);
void avio_wb16(AVIOContext *s, unsigned int val);
 
int avio_put_str(AVIOContext *s, const char *str);
 
int avio_put_str16le(AVIOContext *s, const char *str);
 
int avio_put_str16be(AVIOContext *s, const char *str);
 
void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type);
 
#define AVSEEK_SIZE 0x10000
 
#define AVSEEK_FORCE 0x20000
 
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence);
 
int64_t avio_skip(AVIOContext *s, int64_t offset);
 
static av_always_inline int64_t avio_tell(AVIOContext *s)
{
    return avio_seek(s, 0, SEEK_CUR);
}
 
int64_t avio_size(AVIOContext *s);
 
int avio_feof(AVIOContext *s);
 
attribute_deprecated
int url_feof(AVIOContext *s);
 
int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3);
 
void avio_flush(AVIOContext *s);
 
int avio_read(AVIOContext *s, unsigned char *buf, int size);
 
int avio_read_partial(AVIOContext *s, unsigned char *buf, int size);
 
int          avio_r8  (AVIOContext *s);
unsigned int avio_rl16(AVIOContext *s);
unsigned int avio_rl24(AVIOContext *s);
unsigned int avio_rl32(AVIOContext *s);
uint64_t     avio_rl64(AVIOContext *s);
unsigned int avio_rb16(AVIOContext *s);
unsigned int avio_rb24(AVIOContext *s);
unsigned int avio_rb32(AVIOContext *s);
uint64_t     avio_rb64(AVIOContext *s);
 
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen);
 
int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen);
int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
 
#define AVIO_FLAG_READ  1                                      
#define AVIO_FLAG_WRITE 2                                      
#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE)  
 
#define AVIO_FLAG_NONBLOCK 8
 
#define AVIO_FLAG_DIRECT 0x8000
 
int avio_open(AVIOContext **s, const char *url, int flags);
 
int avio_open2(AVIOContext **s, const char *url, int flags,
               const AVIOInterruptCB *int_cb, AVDictionary **options);
 
int avio_close(AVIOContext *s);
 
int avio_closep(AVIOContext **s);
 
int avio_open_dyn_buf(AVIOContext **s);
 
int avio_get_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
 
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
 
const char *avio_enum_protocols(void **opaque, int output);
 
int     avio_pause(AVIOContext *h, int pause);
 
int64_t avio_seek_time(AVIOContext *h, int stream_index,
                       int64_t timestamp, int flags);
 
struct AVBPrint;
 
int avio_read_to_bprint(AVIOContext *h, struct AVBPrint *pb, size_t max_size);
 
int avio_accept(AVIOContext *s, AVIOContext **c);
 
int avio_handshake(AVIOContext *c);
 
struct AVFormatContext;
 
struct AVDeviceInfoList;
struct AVDeviceCapabilitiesQuery;
 
int av_get_packet(AVIOContext *s, AVPacket *pkt, int size);
 
int av_append_packet(AVIOContext *s, AVPacket *pkt, int size);
 
typedef struct AVFrac {
    int64_t val, num, den;
} AVFrac;
 
struct AVCodecTag;
 
typedef struct AVProbeData {
    const char *filename;
    unsigned char *buf; 
    int buf_size;       
    const char *mime_type; 
} AVProbeData;
 
#define AVPROBE_SCORE_RETRY (AVPROBE_SCORE_MAX/4)
#define AVPROBE_SCORE_STREAM_RETRY (AVPROBE_SCORE_MAX/4-1)
 
#define AVPROBE_SCORE_EXTENSION  50 
#define AVPROBE_SCORE_MIME       75 
#define AVPROBE_SCORE_MAX       100 
 
#define AVPROBE_PADDING_SIZE 32             
 
#define AVFMT_NOFILE        0x0001
#define AVFMT_NEEDNUMBER    0x0002 
#define AVFMT_SHOW_IDS      0x0008 
#define AVFMT_RAWPICTURE    0x0020 
 
#define AVFMT_GLOBALHEADER  0x0040 
#define AVFMT_NOTIMESTAMPS  0x0080 
#define AVFMT_GENERIC_INDEX 0x0100 
#define AVFMT_TS_DISCONT    0x0200 
#define AVFMT_VARIABLE_FPS  0x0400 
#define AVFMT_NODIMENSIONS  0x0800 
#define AVFMT_NOSTREAMS     0x1000 
#define AVFMT_NOBINSEARCH   0x2000 
#define AVFMT_NOGENSEARCH   0x4000 
#define AVFMT_NO_BYTE_SEEK  0x8000 
#define AVFMT_ALLOW_FLUSH  0x10000 
#define AVFMT_TS_NONSTRICT 0x20000 
 
#define AVFMT_TS_NEGATIVE  0x40000 
 
#define AVFMT_SEEK_TO_PTS   0x4000000 
 
typedef struct AVOutputFormat {
    const char *name;
    
    const char *long_name;
    const char *mime_type;
    const char *extensions; 
    
    enum AVCodecID audio_codec;    
    enum AVCodecID video_codec;    
    enum AVCodecID subtitle_codec; 
    
    int flags;
 
    const struct AVCodecTag * const *codec_tag;
 
    const AVClass *priv_class; 
 
    struct AVOutputFormat *next;
    
    int priv_data_size;
 
    int (*write_header)(struct AVFormatContext *);
    
    int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
    int (*write_trailer)(struct AVFormatContext *);
    
    int (*interleave_packet)(struct AVFormatContext *, AVPacket *out,
                             AVPacket *in, int flush);
    
    int (*query_codec)(enum AVCodecID id, int std_compliance);
 
    void (*get_output_timestamp)(struct AVFormatContext *s, int stream,
                                 int64_t *dts, int64_t *wall);
    
    int (*control_message)(struct AVFormatContext *s, int type,
                           void *data, size_t data_size);
 
    int (*write_uncoded_frame)(struct AVFormatContext *, int stream_index,
                               AVFrame **frame, unsigned flags);
    
    int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
    
    int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
    
    int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
    enum AVCodecID data_codec; 
    
    int (*init)(struct AVFormatContext *);
    
    void (*deinit)(struct AVFormatContext *);
    
    int (*check_bitstream)(struct AVFormatContext *, const AVPacket *pkt);
} AVOutputFormat;
 
typedef struct AVInputFormat {
    
    const char *name;
 
    const char *long_name;
 
    int flags;
 
    const char *extensions;
 
    const struct AVCodecTag * const *codec_tag;
 
    const AVClass *priv_class; 
 
    const char *mime_type;
 
    struct AVInputFormat *next;
 
    int raw_codec_id;
 
    int priv_data_size;
 
    int (*read_probe)(AVProbeData *);
 
    int (*read_header)(struct AVFormatContext *);
 
    int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
 
    int (*read_close)(struct AVFormatContext *);
 
    int (*read_seek)(struct AVFormatContext *,
                     int stream_index, int64_t timestamp, int flags);
 
    int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
                              int64_t *pos, int64_t pos_limit);
 
    int (*read_play)(struct AVFormatContext *);
 
    int (*read_pause)(struct AVFormatContext *);
 
    int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
 
    int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
 
    int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
 
    int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
} AVInputFormat;
 
enum AVStreamParseType {
    AVSTREAM_PARSE_NONE,
    AVSTREAM_PARSE_FULL,       
    AVSTREAM_PARSE_HEADERS,    
    AVSTREAM_PARSE_TIMESTAMPS, 
    AVSTREAM_PARSE_FULL_ONCE,  
    AVSTREAM_PARSE_FULL_RAW=MKTAG(0,'R','A','W'),       
 
};
 
typedef struct AVIndexEntry {
    int64_t pos;
    int64_t timestamp;        
 
#define AVINDEX_KEYFRAME 0x0001
#define AVINDEX_DISCARD_FRAME  0x0002    
 
    int flags:2;
    int size:30; 
    int min_distance;         
} AVIndexEntry;
 
#define AV_DISPOSITION_DEFAULT   0x0001
#define AV_DISPOSITION_DUB       0x0002
#define AV_DISPOSITION_ORIGINAL  0x0004
#define AV_DISPOSITION_COMMENT   0x0008
#define AV_DISPOSITION_LYRICS    0x0010
#define AV_DISPOSITION_KARAOKE   0x0020
 
#define AV_DISPOSITION_FORCED    0x0040
#define AV_DISPOSITION_HEARING_IMPAIRED  0x0080  
#define AV_DISPOSITION_VISUAL_IMPAIRED   0x0100  
#define AV_DISPOSITION_CLEAN_EFFECTS     0x0200  
 
#define AV_DISPOSITION_ATTACHED_PIC      0x0400
 
#define AV_DISPOSITION_TIMED_THUMBNAILS  0x0800
 
typedef struct AVStreamInternal AVStreamInternal;
 
#define AV_DISPOSITION_CAPTIONS     0x10000
#define AV_DISPOSITION_DESCRIPTIONS 0x20000
#define AV_DISPOSITION_METADATA     0x40000
 
#define AV_PTS_WRAP_IGNORE      0   
#define AV_PTS_WRAP_ADD_OFFSET  1   
#define AV_PTS_WRAP_SUB_OFFSET  -1  
 
typedef struct AVStream {
    int index;    
    
    int id;
    
    attribute_deprecated
    AVCodecContext *codec;
    void *priv_data;
 
    attribute_deprecated
    struct AVFrac pts;
 
    AVRational time_base;
 
    int64_t start_time;
 
    int64_t duration;
 
    int64_t nb_frames;                 
 
    int disposition; 
 
    enum AVDiscard discard; 
 
    AVRational sample_aspect_ratio;
 
    AVDictionary *metadata;
 
    AVRational avg_frame_rate;
 
    AVPacket attached_pic;
 
    AVPacketSideData *side_data;
    
    int            nb_side_data;
 
    int event_flags;
#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 
 
#define MAX_STD_TIMEBASES (30*12+30+3+6)
    struct {
        int64_t last_dts;
        int64_t duration_gcd;
        int duration_count;
        int64_t rfps_duration_sum;
        double (*duration_error)[2][MAX_STD_TIMEBASES];
        int64_t codec_info_duration;
        int64_t codec_info_duration_fields;
 
        int found_decoder;
 
        int64_t last_duration;
 
        int64_t fps_first_dts;
        int     fps_first_dts_idx;
        int64_t fps_last_dts;
        int     fps_last_dts_idx;
 
    } *info;
 
    int pts_wrap_bits; 
 
    int64_t first_dts;
    int64_t cur_dts;
    int64_t last_IP_pts;
    int last_IP_duration;
 
    int probe_packets;
 
    int codec_info_nb_frames;
 
    enum AVStreamParseType need_parsing;
    struct AVCodecParserContext *parser;
 
    struct AVPacketList *last_in_packet_buffer;
    AVProbeData probe_data;
#define MAX_REORDER_DELAY 16
    int64_t pts_buffer[MAX_REORDER_DELAY+1];
 
    AVIndexEntry *index_entries; 
 
    int nb_index_entries;
    unsigned int index_entries_allocated_size;
 
    AVRational r_frame_rate;
 
    int stream_identifier;
 
    int64_t interleaver_chunk_size;
    int64_t interleaver_chunk_duration;
 
    int request_probe;
    
    int skip_to_keyframe;
 
    int skip_samples;
 
    int64_t start_skip_samples;
 
    int64_t first_discard_sample;
 
    int64_t last_discard_sample;
 
    int nb_decoded_frames;
 
    int64_t mux_ts_offset;
 
    int64_t pts_wrap_reference;
 
    int pts_wrap_behavior;
 
    int update_initial_durations_done;
 
    int64_t pts_reorder_error[MAX_REORDER_DELAY+1];
    uint8_t pts_reorder_error_count[MAX_REORDER_DELAY+1];
 
    int64_t last_dts_for_order_check;
    uint8_t dts_ordered;
    uint8_t dts_misordered;
 
    int inject_global_side_data;
 
    char *recommended_encoder_configuration;
 
    AVRational display_aspect_ratio;
 
    struct FFFrac *priv_pts;
 
    AVStreamInternal *internal;
 
    AVCodecParameters *codecpar;
} AVStream;
 
AVRational av_stream_get_r_frame_rate(const AVStream *s);
void       av_stream_set_r_frame_rate(AVStream *s, AVRational r);
struct AVCodecParserContext *av_stream_get_parser(const AVStream *s);
char* av_stream_get_recommended_encoder_configuration(const AVStream *s);
void  av_stream_set_recommended_encoder_configuration(AVStream *s, char *configuration);
 
int64_t    av_stream_get_end_pts(const AVStream *st);
 
#define AV_PROGRAM_RUNNING 1
 
typedef struct AVProgram {
    int            id;
    int            flags;
    enum AVDiscard discard;        
    unsigned int   *stream_index;
    unsigned int   nb_stream_indexes;
    AVDictionary *metadata;
 
    int program_num;
    int pmt_pid;
    int pcr_pid;
 
    int64_t start_time;
    int64_t end_time;
 
    int64_t pts_wrap_reference;    
    int pts_wrap_behavior;         
} AVProgram;
 
#define AVFMTCTX_NOHEADER      0x0001 
 
typedef struct AVChapter {
    int id;                 
    AVRational time_base;   
    int64_t start, end;     
    AVDictionary *metadata;
} AVChapter;
 
typedef int (*av_format_control_message)(struct AVFormatContext *s, int type,
                                         void *data, size_t data_size);
 
typedef int (*AVOpenCallback)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags,
                              const AVIOInterruptCB *int_cb, AVDictionary **options);
 
enum AVDurationEstimationMethod {
    AVFMT_DURATION_FROM_PTS,    
    AVFMT_DURATION_FROM_STREAM, 
    AVFMT_DURATION_FROM_BITRATE 
};
 
typedef struct AVFormatInternal AVFormatInternal;
 
typedef struct AVFormatContext {
    
    const AVClass *av_class;
 
    struct AVInputFormat *iformat;
 
    struct AVOutputFormat *oformat;
 
    void *priv_data;
 
    AVIOContext *pb;
 
    int ctx_flags;
 
    unsigned int nb_streams;
    
    AVStream **streams;
 
    char filename[1024];
 
    int64_t start_time;
 
    int64_t duration;
 
    int64_t bit_rate;
 
    unsigned int packet_size;
    int max_delay;
 
    int flags;
#define AVFMT_FLAG_GENPTS       0x0001 
#define AVFMT_FLAG_IGNIDX       0x0002 
#define AVFMT_FLAG_NONBLOCK     0x0004 
#define AVFMT_FLAG_IGNDTS       0x0008 
#define AVFMT_FLAG_NOFILLIN     0x0010 
#define AVFMT_FLAG_NOPARSE      0x0020 
#define AVFMT_FLAG_NOBUFFER     0x0040 
#define AVFMT_FLAG_CUSTOM_IO    0x0080 
#define AVFMT_FLAG_DISCARD_CORRUPT  0x0100 
#define AVFMT_FLAG_FLUSH_PACKETS    0x0200 
 
#define AVFMT_FLAG_BITEXACT         0x0400
#define AVFMT_FLAG_MP4A_LATM    0x8000 
#define AVFMT_FLAG_SORT_DTS    0x10000 
#define AVFMT_FLAG_PRIV_OPT    0x20000 
#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 
#define AVFMT_FLAG_FAST_SEEK   0x80000 
#define AVFMT_FLAG_SHORTEST   0x100000 
#define AVFMT_FLAG_AUTO_BSF   0x200000 
 
    int64_t probesize;
 
    int64_t max_analyze_duration;
 
    const uint8_t *key;
    int keylen;
 
    unsigned int nb_programs;
    AVProgram **programs;
 
    enum AVCodecID video_codec_id;
 
    enum AVCodecID audio_codec_id;
 
    enum AVCodecID subtitle_codec_id;
 
    unsigned int max_index_size;
 
    unsigned int max_picture_buffer;
 
    unsigned int nb_chapters;
    AVChapter **chapters;
 
    AVDictionary *metadata;
 
    int64_t start_time_realtime;
 
    int fps_probe_size;
 
    int error_recognition;
 
    AVIOInterruptCB interrupt_callback;
 
    int debug;
#define FF_FDEBUG_TS        0x0001
 
    int64_t max_interleave_delta;
 
    int strict_std_compliance;
 
    int event_flags;
#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 
 
    int max_ts_probe;
 
    int avoid_negative_ts;
#define AVFMT_AVOID_NEG_TS_AUTO             -1 
#define AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE 1 
#define AVFMT_AVOID_NEG_TS_MAKE_ZERO         2 
 
    int ts_id;
 
    int audio_preload;
 
    int max_chunk_duration;
 
    int max_chunk_size;
 
    int use_wallclock_as_timestamps;
 
    int avio_flags;
 
    enum AVDurationEstimationMethod duration_estimation_method;
 
    int64_t skip_initial_bytes;
 
    unsigned int correct_ts_overflow;
 
    int seek2any;
 
    int flush_packets;
 
    int probe_score;
 
    int format_probesize;
 
    char *codec_whitelist;
 
    char *format_whitelist;
 
    AVFormatInternal *internal;
 
    int io_repositioned;
 
    AVCodec *video_codec;
 
    AVCodec *audio_codec;
 
    AVCodec *subtitle_codec;
 
    AVCodec *data_codec;
 
    int metadata_header_padding;
 
    void *opaque;
 
    av_format_control_message control_message_cb;
 
    int64_t output_ts_offset;
 
    uint8_t *dump_separator;
 
    enum AVCodecID data_codec_id;
 
    attribute_deprecated
    int (*open_cb)(struct AVFormatContext *s, AVIOContext **p, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options);
 
    char *protocol_whitelist;
 
    int (*io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url,
                   int flags, AVDictionary **options);
 
    void (*io_close)(struct AVFormatContext *s, AVIOContext *pb);
 
    char *protocol_blacklist;
 
    int max_streams;
} AVFormatContext;
 
int av_format_get_probe_score(const AVFormatContext *s);
AVCodec * av_format_get_video_codec(const AVFormatContext *s);
void      av_format_set_video_codec(AVFormatContext *s, AVCodec *c);
AVCodec * av_format_get_audio_codec(const AVFormatContext *s);
void      av_format_set_audio_codec(AVFormatContext *s, AVCodec *c);
AVCodec * av_format_get_subtitle_codec(const AVFormatContext *s);
void      av_format_set_subtitle_codec(AVFormatContext *s, AVCodec *c);
AVCodec * av_format_get_data_codec(const AVFormatContext *s);
void      av_format_set_data_codec(AVFormatContext *s, AVCodec *c);
int       av_format_get_metadata_header_padding(const AVFormatContext *s);
void      av_format_set_metadata_header_padding(AVFormatContext *s, int c);
void *    av_format_get_opaque(const AVFormatContext *s);
void      av_format_set_opaque(AVFormatContext *s, void *opaque);
av_format_control_message av_format_get_control_message_cb(const AVFormatContext *s);
void      av_format_set_control_message_cb(AVFormatContext *s, av_format_control_message callback);
attribute_deprecated AVOpenCallback av_format_get_open_cb(const AVFormatContext *s);
attribute_deprecated void av_format_set_open_cb(AVFormatContext *s, AVOpenCallback callback);
 
void av_format_inject_global_side_data(AVFormatContext *s);
 
enum AVDurationEstimationMethod av_fmt_ctx_get_duration_estimation_method(const AVFormatContext* ctx);
 
typedef struct AVPacketList {
    AVPacket pkt;
    struct AVPacketList *next;
} AVPacketList;
 
unsigned avformat_version(void);
 
const char *avformat_configuration(void);
 
const char *avformat_license(void);
 
void av_register_all(void);
 
void av_register_input_format(AVInputFormat *format);
void av_register_output_format(AVOutputFormat *format);
 
int avformat_network_init(void);
 
int avformat_network_deinit(void);
 
AVInputFormat  *av_iformat_next(const AVInputFormat  *f);
 
AVOutputFormat *av_oformat_next(const AVOutputFormat *f);
 
AVFormatContext *avformat_alloc_context(void);
 
void avformat_free_context(AVFormatContext *s);
 
const AVClass *avformat_get_class(void);
 
AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c);
 
int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type,
                            uint8_t *data, size_t size);
 
uint8_t *av_stream_new_side_data(AVStream *stream,
                                 enum AVPacketSideDataType type, int size);
 
uint8_t *av_stream_get_side_data(AVStream *stream,
                                 enum AVPacketSideDataType type, int *size);
 
AVProgram *av_new_program(AVFormatContext *s, int id);
 
int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat,
                                   const char *format_name, const char *filename);
 
AVInputFormat *av_find_input_format(const char *short_name);
 
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
 
AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max);
 
AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret);
 
int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
                           const char *url, void *logctx,
                           unsigned int offset, unsigned int max_probe_size);
 
int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
                          const char *url, void *logctx,
                          unsigned int offset, unsigned int max_probe_size);
 
int avformat_open_input(AVFormatContext **ps, const char *url, AVInputFormat *fmt, AVDictionary **options);
 
attribute_deprecated
int av_demuxer_open(AVFormatContext *ic);
 
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options);
 
AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s);
 
void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx);
 
int av_find_best_stream(AVFormatContext *ic,
                        enum AVMediaType type,
                        int wanted_stream_nb,
                        int related_stream,
                        AVCodec **decoder_ret,
                        int flags);
 
int av_read_frame(AVFormatContext *s, AVPacket *pkt);
 
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp,
                  int flags);
 
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
 
int avformat_flush(AVFormatContext *s);
 
int av_read_play(AVFormatContext *s);
 
int av_read_pause(AVFormatContext *s);
 
void avformat_close_input(AVFormatContext **s);
 
#define AVSEEK_FLAG_BACKWARD 1 
#define AVSEEK_FLAG_BYTE     2 
#define AVSEEK_FLAG_ANY      4 
#define AVSEEK_FLAG_FRAME    8 
 
#define AVSTREAM_INIT_IN_WRITE_HEADER 0 
#define AVSTREAM_INIT_IN_INIT_OUTPUT  1 
 
av_warn_unused_result
int avformat_write_header(AVFormatContext *s, AVDictionary **options);
 
av_warn_unused_result
int avformat_init_output(AVFormatContext *s, AVDictionary **options);
 
int av_write_frame(AVFormatContext *s, AVPacket *pkt);
 
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
 
int av_write_uncoded_frame(AVFormatContext *s, int stream_index,
                           AVFrame *frame);
 
int av_interleaved_write_uncoded_frame(AVFormatContext *s, int stream_index,
                                       AVFrame *frame);
 
int av_write_uncoded_frame_query(AVFormatContext *s, int stream_index);
 
int av_write_trailer(AVFormatContext *s);
 
AVOutputFormat *av_guess_format(const char *short_name,
                                const char *filename,
                                const char *mime_type);
 
enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
                            const char *filename, const char *mime_type,
                            enum AVMediaType type);
 
int av_get_output_timestamp(struct AVFormatContext *s, int stream,
                            int64_t *dts, int64_t *wall);
 
void av_hex_dump(FILE *f, const uint8_t *buf, int size);
 
void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size);
 
void av_pkt_dump2(FILE *f, const AVPacket *pkt, int dump_payload, const AVStream *st);
 
void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload,
                      const AVStream *st);
 
enum AVCodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag);
 
unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum AVCodecID id);
 
int av_codec_get_tag2(const struct AVCodecTag * const *tags, enum AVCodecID id,
                      unsigned int *tag);
 
int av_find_default_stream_index(AVFormatContext *s);
 
int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
 
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
                       int size, int distance, int flags);
 
void av_url_split(char *proto,         int proto_size,
                  char *authorization, int authorization_size,
                  char *hostname,      int hostname_size,
                  int *port_ptr,
                  char *path,          int path_size,
                  const char *url);
 
void av_dump_format(AVFormatContext *ic,
                    int index,
                    const char *url,
                    int is_output);
 
#define AV_FRAME_FILENAME_FLAGS_MULTIPLE 1 
 
int av_get_frame_filename2(char *buf, int buf_size,
                          const char *path, int number, int flags);
 
int av_get_frame_filename(char *buf, int buf_size,
                          const char *path, int number);
 
int av_filename_number_test(const char *filename);
 
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size);
 
int av_match_ext(const char *filename, const char *extensions);
 
int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id,
                         int std_compliance);
 
const struct AVCodecTag *avformat_get_riff_video_tags(void);
 
const struct AVCodecTag *avformat_get_riff_audio_tags(void);
 
const struct AVCodecTag *avformat_get_mov_video_tags(void);
 
const struct AVCodecTag *avformat_get_mov_audio_tags(void);
 
AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame);
 
AVRational av_guess_frame_rate(AVFormatContext *ctx, AVStream *stream, AVFrame *frame);
 
int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
                                    const char *spec);
 
int avformat_queue_attached_pictures(AVFormatContext *s);
 
attribute_deprecated
int av_apply_bitstream_filters(AVCodecContext *codec, AVPacket *pkt,
                               AVBitStreamFilterContext *bsfc);
 
enum AVTimebaseSource {
    AVFMT_TBCF_AUTO = -1,
    AVFMT_TBCF_DECODER,
    AVFMT_TBCF_DEMUXER,
    AVFMT_TBCF_R_FRAMERATE,
};
 
int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt,
                                                  AVStream *ost, const AVStream *ist,
                                                  enum AVTimebaseSource copy_tb);
 
AVRational av_stream_get_codec_timebase(const AVStream *st);
 
#define AVUTIL_FIFO_H
 
typedef struct AVFifoBuffer {
    uint8_t *buffer;
    uint8_t *rptr, *wptr, *end;
    uint32_t rndx, wndx;
} AVFifoBuffer;
 
AVFifoBuffer *av_fifo_alloc(unsigned int size);
 
AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size);
 
void av_fifo_free(AVFifoBuffer *f);
 
void av_fifo_freep(AVFifoBuffer **f);
 
void av_fifo_reset(AVFifoBuffer *f);
 
int av_fifo_size(const AVFifoBuffer *f);
 
int av_fifo_space(const AVFifoBuffer *f);
 
int av_fifo_generic_peek_at(AVFifoBuffer *f, void *dest, int offset, int buf_size, void (*func)(void*, void*, int));
 
int av_fifo_generic_peek(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
 
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
 
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
 
int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
 
int av_fifo_grow(AVFifoBuffer *f, unsigned int additional_space);
 
void av_fifo_drain(AVFifoBuffer *f, int size);
 
static inline uint8_t *av_fifo_peek2(const AVFifoBuffer *f, int offs)
{
    uint8_t *ptr = f->rptr + offs;
    if (ptr >= f->end)
        ptr = f->buffer + (ptr - f->end);
    else if (ptr < f->buffer)
        ptr = f->end - (f->buffer - ptr);
    return ptr;
}