compatibility warning
[libav.git] / libavutil / avutil.h
1 #ifndef AVUTIL_H
2 #define AVUTIL_H
3
4 /**
5 * @file avutil.h
6 * external api header.
7 */
8
9
10 #ifdef __cplusplus
11 extern "C" {
12 #endif
13
14 #define AV_STRINGIFY(s) AV_TOSTRING(s)
15 #define AV_TOSTRING(s) #s
16
17 #define LIBAVUTIL_VERSION_INT ((49<<16)+(0<<8)+0)
18 #define LIBAVUTIL_VERSION 49.0.0
19 #define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
20
21 #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
22
23
24 #include "common.h"
25 #include "mathematics.h"
26 #include "rational.h"
27 #include "integer.h"
28 #include "intfloat_readwrite.h"
29 #include "log.h"
30
31 /**
32 * Pixel format. Notes:
33 *
34 * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
35 * color is put together as:
36 * (A << 24) | (R << 16) | (G << 8) | B
37 * This is stored as BGRA on little endian CPU architectures and ARGB on
38 * big endian CPUs.
39 *
40 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
41 * image data is stored in AVFrame.data[0]. The palette is transported in
42 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
43 * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
44 * also endian-specific). Note also that the individual RGB palette
45 * components stored in AVFrame.data[1] should be in the range 0..255.
46 * This is important as many custom PAL8 video codecs that were designed
47 * to run on the IBM VGA graphics adapter use 6-bit palette components.
48 */
49 enum PixelFormat {
50 PIX_FMT_NONE= -1,
51 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
52 PIX_FMT_YUYV422, ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
53 PIX_FMT_RGB24, ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
54 PIX_FMT_BGR24, ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
55 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
56 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
57 PIX_FMT_RGB32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
58 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
59 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
60 PIX_FMT_RGB565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in cpu endianness
61 PIX_FMT_RGB555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 1
62 PIX_FMT_GRAY8, ///< Y , 8bpp
63 PIX_FMT_MONOWHITE, ///< Y , 1bpp, 1 is white
64 PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black
65 PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
66 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
67 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
68 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
69 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
70 PIX_FMT_XVMC_MPEG2_IDCT,
71 PIX_FMT_UYVY422, ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
72 PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
73 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
74 };
75
76 #ifdef WORDS_BIGENDIAN
77 #define PIX_FMT_BGRA PIX_FMT_NONE
78 #define PIX_FMT_ARGB PIX_FMT_RGB32
79 #else
80 #define PIX_FMT_BGRA PIX_FMT_RGB32
81 #define PIX_FMT_ARGB PIX_FMT_NONE
82 #endif
83
84 #if LIBAVUTIL_VERSION_INT < (50<<16)
85 #define PIX_FMT_UYVY411 PIX_FMT_UYYVYY411
86 #define PIX_FMT_RGBA32 PIX_FMT_RGB32
87 #define PIX_FMT_YUV422 PIX_FMT_YUYV422
88 #endif
89
90 #ifdef __cplusplus
91 }
92 #endif
93
94 #endif /* AVUTIL_H */