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FFmpeg/libavutil/avutil.h

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  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 10

  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.  * Returns the LIBAVUTIL_VERSION_INT constant.

  53.  */

  54. unsigned avutil_version(void);

  55. 

  56. #include "common.h"

  57. #include "mathematics.h"

  58. #include "rational.h"

  59. #include "intfloat_readwrite.h"

  60. #include "log.h"

  61. 

  62. /**

  63.  * Pixel format. Notes:

  64.  *

  65.  * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA

  66.  * color is put together as:

  67.  *  (A << 24) | (R << 16) | (G << 8) | B

  68.  * This is stored as BGRA on little endian CPU architectures and ARGB on

  69.  * big endian CPUs.

  70.  *

  71.  * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized

  72.  * image data is stored in AVFrame.data[0]. The palette is transported in

  73.  * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is

  74.  * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is

  75.  * also endian-specific). Note also that the individual RGB palette

  76.  * components stored in AVFrame.data[1] should be in the range 0..255.

  77.  * This is important as many custom PAL8 video codecs that were designed

  78.  * to run on the IBM VGA graphics adapter use 6-bit palette components.

  79.  */

  80. enum PixelFormat {

  81.     PIX_FMT_NONE= -1,

  82.     PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)

  83.     PIX_FMT_YUYV422,   ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr

  84.     PIX_FMT_RGB24,     ///< Packed RGB 8:8:8, 24bpp, RGBRGB...

  85.     PIX_FMT_BGR24,     ///< Packed RGB 8:8:8, 24bpp, BGRBGR...

  86.     PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)

  87.     PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)

  88.     PIX_FMT_RGB32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness

  89.     PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0,  9bpp, (1 Cr & Cb sample per 4x4 Y samples)

  90.     PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)

  91.     PIX_FMT_RGB565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5R 6G 5B(lsb), in cpu endianness

  92.     PIX_FMT_RGB555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 0

  93.     PIX_FMT_GRAY8,     ///<        Y        ,  8bpp

  94.     PIX_FMT_MONOWHITE, ///<        Y        ,  1bpp, 0 is white, 1 is black

  95.     PIX_FMT_MONOBLACK, ///<        Y        ,  1bpp, 0 is black, 1 is white

  96.     PIX_FMT_PAL8,      ///< 8 bit with PIX_FMT_RGB32 palette

  97.     PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)

  98.     PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)

  99.     PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)

  100.     PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)

  101.     PIX_FMT_XVMC_MPEG2_IDCT,

  102.     PIX_FMT_UYVY422,   ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1

  103.     PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3

  104.     PIX_FMT_BGR32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness

  105.     PIX_FMT_BGR565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5B 6G 5R(lsb), in cpu endianness

  106.     PIX_FMT_BGR555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1

  107.     PIX_FMT_BGR8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2B 3G 3R(lsb)

  108.     PIX_FMT_BGR4,      ///< Packed RGB 1:2:1,  4bpp, (msb)1B 2G 1R(lsb)

  109.     PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)1B 2G 1R(lsb)

  110.     PIX_FMT_RGB8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2R 3G 3B(lsb)

  111.     PIX_FMT_RGB4,      ///< Packed RGB 1:2:1,  4bpp, (msb)2R 3G 3B(lsb)

  112.     PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)2R 3G 3B(lsb)

  113.     PIX_FMT_NV12,      ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV

  114.     PIX_FMT_NV21,      ///< as above, but U and V bytes are swapped

  115. 

  116.     PIX_FMT_RGB32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness

  117.     PIX_FMT_BGR32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness

  118. 

  119.     PIX_FMT_GRAY16BE,  ///<        Y        , 16bpp, big-endian

  120.     PIX_FMT_GRAY16LE,  ///<        Y        , 16bpp, little-endian

  121.     PIX_FMT_YUV440P,   ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)

  122.     PIX_FMT_YUVJ440P,  ///< Planar YUV 4:4:0 full scale (jpeg)

  123.     PIX_FMT_YUVA420P,  ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)

  124.     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

  125. };

  126. 

  127. #ifdef WORDS_BIGENDIAN

  128. #define PIX_FMT_RGBA PIX_FMT_RGB32_1

  129. #define PIX_FMT_BGRA PIX_FMT_BGR32_1

  130. #define PIX_FMT_ARGB PIX_FMT_RGB32

  131. #define PIX_FMT_ABGR PIX_FMT_BGR32

  132. #define PIX_FMT_GRAY16 PIX_FMT_GRAY16BE

  133. #else

  134. #define PIX_FMT_RGBA PIX_FMT_BGR32

  135. #define PIX_FMT_BGRA PIX_FMT_RGB32

  136. #define PIX_FMT_ARGB PIX_FMT_BGR32_1

  137. #define PIX_FMT_ABGR PIX_FMT_RGB32_1

  138. #define PIX_FMT_GRAY16 PIX_FMT_GRAY16LE

  139. #endif

  140. 

  141. #if LIBAVUTIL_VERSION_INT < (50<<16)

  142. #define PIX_FMT_UYVY411 PIX_FMT_UYYVYY411

  143. #define PIX_FMT_RGBA32  PIX_FMT_RGB32

  144. #define PIX_FMT_YUV422  PIX_FMT_YUYV422

  145. #endif

  146. 

  147. #endif /* FFMPEG_AVUTIL_H */