1 /*
2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
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.
10  *
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.
15  *
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
19  */
20 
21 #ifndef FFMPEG_AVUTIL_H
22 #define FFMPEG_AVUTIL_H
23 
24 /**
25  * @file avutil.h
26  * external API header
27  */
28 
29 
30 #define AV_STRINGIFY(s)         AV_TOSTRING(s)
31 #define AV_TOSTRING(s) #s
32 
33 #define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
34 #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
35 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
36 
37 #define LIBAVUTIL_VERSION_MAJOR 49
38 #define LIBAVUTIL_VERSION_MINOR  6
39 #define LIBAVUTIL_VERSION_MICRO  0
40 
41 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
42                                                LIBAVUTIL_VERSION_MINOR, \
43                                                LIBAVUTIL_VERSION_MICRO)
44 #define LIBAVUTIL_VERSION       AV_VERSION(LIBAVUTIL_VERSION_MAJOR,     \
45                                            LIBAVUTIL_VERSION_MINOR,     \
46                                            LIBAVUTIL_VERSION_MICRO)
47 #define LIBAVUTIL_BUILD         LIBAVUTIL_VERSION_INT
48 
49 #define LIBAVUTIL_IDENT         "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
50 
51 
52 #include "common.h"
53 #include "mathematics.h"
54 #include "rational.h"
55 #include "intfloat_readwrite.h"
56 #include "log.h"
57 
58 /**
59  * Pixel format. Notes:
60  *
61  * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
62  * color is put together as:
63  *  (A << 24) | (R << 16) | (G << 8) | B
64  * This is stored as BGRA on little endian CPU architectures and ARGB on
65  * big endian CPUs.
66  *
67  * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
68  * image data is stored in AVFrame.data[0]. The palette is transported in
69  * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
70  * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
71  * also endian-specific). Note also that the individual RGB palette
72  * components stored in AVFrame.data[1] should be in the range 0..255.
73  * This is important as many custom PAL8 video codecs that were designed
74  * to run on the IBM VGA graphics adapter use 6-bit palette components.
75  */
76 enum PixelFormat {
77     PIX_FMT_NONE= -1,
78     PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
79     PIX_FMT_YUYV422,   ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
80     PIX_FMT_RGB24,     ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
81     PIX_FMT_BGR24,     ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
82     PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
83     PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
84     PIX_FMT_RGB32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
85     PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0,  9bpp, (1 Cr & Cb sample per 4x4 Y samples)
86     PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
87     PIX_FMT_RGB565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5R 6G 5B(lsb), in cpu endianness
88     PIX_FMT_RGB555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 0
89     PIX_FMT_GRAY8,     ///<        Y        ,  8bpp
90     PIX_FMT_MONOWHITE, ///<        Y        ,  1bpp, 0 is white, 1 is black
91     PIX_FMT_MONOBLACK, ///<        Y        ,  1bpp, 0 is black, 1 is white
92     PIX_FMT_PAL8,      ///< 8 bit with PIX_FMT_RGB32 palette
93     PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
94     PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
95     PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
96     PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
97     PIX_FMT_XVMC_MPEG2_IDCT,
98     PIX_FMT_UYVY422,   ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
99     PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
100     PIX_FMT_BGR32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness
101     PIX_FMT_BGR565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5B 6G 5R(lsb), in cpu endianness
102     PIX_FMT_BGR555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1
103     PIX_FMT_BGR8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2B 3G 3R(lsb)
104     PIX_FMT_BGR4,      ///< Packed RGB 1:2:1,  4bpp, (msb)1B 2G 1R(lsb)
105     PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)1B 2G 1R(lsb)
106     PIX_FMT_RGB8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2R 3G 3B(lsb)
107     PIX_FMT_RGB4,      ///< Packed RGB 1:2:1,  4bpp, (msb)2R 3G 3B(lsb)
108     PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)2R 3G 3B(lsb)
109     PIX_FMT_NV12,      ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
110     PIX_FMT_NV21,      ///< as above, but U and V bytes are swapped
111 
112     PIX_FMT_RGB32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness
113     PIX_FMT_BGR32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness
114 
115     PIX_FMT_GRAY16BE,  ///<        Y        , 16bpp, big-endian
116     PIX_FMT_GRAY16LE,  ///<        Y        , 16bpp, little-endian
117     PIX_FMT_YUV440P,   ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
118     PIX_FMT_YUVJ440P,  ///< Planar YUV 4:4:0 full scale (jpeg)
119     PIX_FMT_YUVA420P,  ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
120     PIX_FMT_NB,        ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
121 };
122 
123 #ifdef WORDS_BIGENDIAN
124 #define PIX_FMT_RGBA PIX_FMT_RGB32_1
125 #define PIX_FMT_BGRA PIX_FMT_BGR32_1
126 #define PIX_FMT_ARGB PIX_FMT_RGB32
127 #define PIX_FMT_ABGR PIX_FMT_BGR32
128 #define PIX_FMT_GRAY16 PIX_FMT_GRAY16BE
129 #else
130 #define PIX_FMT_RGBA PIX_FMT_BGR32
131 #define PIX_FMT_BGRA PIX_FMT_RGB32
132 #define PIX_FMT_ARGB PIX_FMT_BGR32_1
133 #define PIX_FMT_ABGR PIX_FMT_RGB32_1
134 #define PIX_FMT_GRAY16 PIX_FMT_GRAY16LE
135 #endif
136 
137 #if LIBAVUTIL_VERSION_INT < (50<<16)
138 #define PIX_FMT_UYVY411 PIX_FMT_UYYVYY411
139 #define PIX_FMT_RGBA32  PIX_FMT_RGB32
140 #define PIX_FMT_YUV422  PIX_FMT_YUYV422
141 #endif
142 
143 #endif /* FFMPEG_AVUTIL_H */
144