2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVUTIL_AVUTIL_H
22 #define AVUTIL_AVUTIL_H
30 #define AV_STRINGIFY(s) AV_TOSTRING(s)
31 #define AV_TOSTRING(s) #s
33 #define AV_GLUE(a, b) a ## b
34 #define AV_JOIN(a, b) AV_GLUE(a, b)
36 #define AV_PRAGMA(s) _Pragma(#s)
38 #define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
39 #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
40 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
42 #define LIBAVUTIL_VERSION_MAJOR 51
43 #define LIBAVUTIL_VERSION_MINOR 16
44 #define LIBAVUTIL_VERSION_MICRO 0
46 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
47 LIBAVUTIL_VERSION_MINOR, \
48 LIBAVUTIL_VERSION_MICRO)
49 #define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
50 LIBAVUTIL_VERSION_MINOR, \
51 LIBAVUTIL_VERSION_MICRO)
52 #define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
54 #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
57 * Those FF_API_* defines are not part of public API.
58 * They may change, break or disappear at any time.
60 #ifndef FF_API_OLD_EVAL_NAMES
61 #define FF_API_OLD_EVAL_NAMES (LIBAVUTIL_VERSION_MAJOR < 52)
63 #ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
64 #define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
66 #ifndef FF_API_FIND_OPT
67 #define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 52)
69 #ifndef FF_API_AV_FIFO_PEEK
70 #define FF_API_AV_FIFO_PEEK (LIBAVUTIL_VERSION_MAJOR < 52)
74 * Return the LIBAVUTIL_VERSION_INT constant.
76 unsigned avutil_version(void);
79 * Return the libavutil build-time configuration.
81 const char *avutil_configuration(void);
84 * Return the libavutil license.
86 const char *avutil_license(void);
89 AVMEDIA_TYPE_UNKNOWN = -1,
93 AVMEDIA_TYPE_SUBTITLE,
94 AVMEDIA_TYPE_ATTACHMENT,
99 * Return a string describing the media_type enum, NULL if media_type
102 const char *av_get_media_type_string(enum AVMediaType media_type);
104 #define FF_LAMBDA_SHIFT 7
105 #define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
106 #define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
107 #define FF_LAMBDA_MAX (256*128-1)
109 #define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
111 #define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
112 #define AV_TIME_BASE 1000000
113 #define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
116 AV_PICTURE_TYPE_NONE = 0, ///< Undefined
117 AV_PICTURE_TYPE_I, ///< Intra
118 AV_PICTURE_TYPE_P, ///< Predicted
119 AV_PICTURE_TYPE_B, ///< Bi-dir predicted
120 AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
121 AV_PICTURE_TYPE_SI, ///< Switching Intra
122 AV_PICTURE_TYPE_SP, ///< Switching Predicted
123 AV_PICTURE_TYPE_BI, ///< BI type
127 * Return a single letter to describe the given picture type
130 * @param[in] pict_type the picture type @return a single character
131 * representing the picture type, '?' if pict_type is unknown
133 char av_get_picture_type_char(enum AVPictureType pict_type);
137 #include "mathematics.h"
138 #include "rational.h"
139 #include "intfloat_readwrite.h"
143 #endif /* AVUTIL_AVUTIL_H */