avutil.h 3.31 KB
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/*
 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
 *
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 * This file is part of Libav.
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 *
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 * Libav is free software; you can redistribute it and/or
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 * 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.
 *
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 * Libav is distributed in the hope that it will be useful,
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 * 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
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 * License along with Libav; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

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#ifndef AVUTIL_AVUTIL_H
#define AVUTIL_AVUTIL_H
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/**
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 * @file
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 * external API header
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 */


#define AV_STRINGIFY(s)         AV_TOSTRING(s)
#define AV_TOSTRING(s) #s
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#define AV_GLUE(a, b) a ## b
#define AV_JOIN(a, b) AV_GLUE(a, b)

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#define AV_PRAGMA(s) _Pragma(#s)
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#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)
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#define LIBAVUTIL_VERSION_MAJOR 50
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#define LIBAVUTIL_VERSION_MINOR 39
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#define LIBAVUTIL_VERSION_MICRO  0
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#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)
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#define LIBAVUTIL_BUILD         LIBAVUTIL_VERSION_INT

#define LIBAVUTIL_IDENT         "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)

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/**
 * Those FF_API_* defines are not part of public API.
 * They may change, break or disappear at any time.
 */
#ifndef FF_API_OLD_EVAL_NAMES
#define FF_API_OLD_EVAL_NAMES (LIBAVUTIL_VERSION_MAJOR < 51)
#endif

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/**
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 * Return the LIBAVUTIL_VERSION_INT constant.
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 */
unsigned avutil_version(void);
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/**
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 * Return the libavutil build-time configuration.
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 */
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const char *avutil_configuration(void);
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/**
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 * Return the libavutil license.
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 */
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const char *avutil_license(void);
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enum AVMediaType {
    AVMEDIA_TYPE_UNKNOWN = -1,
    AVMEDIA_TYPE_VIDEO,
    AVMEDIA_TYPE_AUDIO,
    AVMEDIA_TYPE_DATA,
    AVMEDIA_TYPE_SUBTITLE,
    AVMEDIA_TYPE_ATTACHMENT,
    AVMEDIA_TYPE_NB
};

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#define FF_LAMBDA_SHIFT 7
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
#define FF_LAMBDA_MAX (256*128-1)

#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove

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#define AV_NOPTS_VALUE          INT64_C(0x8000000000000000)
#define AV_TIME_BASE            1000000
#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}

/**
 * Those FF_API_* defines are not part of public API.
 * They may change, break or disappear at any time.
 */
#ifndef FF_API_OLD_IMAGE_NAMES
#define FF_API_OLD_IMAGE_NAMES (LIBAVUTIL_VERSION_MAJOR < 51)
#endif

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#include "common.h"
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#include "error.h"
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#include "mathematics.h"
#include "rational.h"
#include "intfloat_readwrite.h"
#include "log.h"
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#include "pixfmt.h"
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#endif /* AVUTIL_AVUTIL_H */