avutil.h

См. документацию.

/*
 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
#ifndef AVUTIL_AVUTIL_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 //FIXME maybe remove
 
#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);
 
#include "common.h"
#include "error.h"
#include "rational.h"
#include "version.h"
#include "macros.h"
#include "mathematics.h"
#include "log.h"
#include "pixfmt.h"
 
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);
 
#endif /* AVUTIL_AVUTIL_H */