avutil.h
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上传日期:2022-07-08
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- /*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * 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.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * 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
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #ifndef AVUTIL_AVUTIL_H
- #define AVUTIL_AVUTIL_H
- /**
- * @file avutil.h
- * external API header
- */
- #define AV_STRINGIFY(s) AV_TOSTRING(s)
- #define AV_TOSTRING(s) #s
- #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)
- #define LIBAVUTIL_VERSION_MAJOR 49
- #define LIBAVUTIL_VERSION_MINOR 12
- #define LIBAVUTIL_VERSION_MICRO 0
- #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)
- #define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
- #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
- /**
- * Returns the LIBAVUTIL_VERSION_INT constant.
- */
- unsigned avutil_version(void);
- #include "common.h"
- #include "mathematics.h"
- //#include "rational.h"
- //#include "intfloat_readwrite.h"
- #include "log.h"
- /**
- * Pixel format. Notes:
- *
- * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
- * color is put together as:
- * (A << 24) | (R << 16) | (G << 8) | B
- * This is stored as BGRA on little endian CPU architectures and ARGB on
- * big endian CPUs.
- *
- * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
- * image data is stored in AVFrame.data[0]. The palette is transported in
- * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
- * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
- * also endian-specific). Note also that the individual RGB palette
- * components stored in AVFrame.data[1] should be in the range 0..255.
- * This is important as many custom PAL8 video codecs that were designed
- * to run on the IBM VGA graphics adapter use 6-bit palette components.
- */
- enum PixelFormat {
- PIX_FMT_NONE= -1,
- PIX_FMT_YUV420P, ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
- PIX_FMT_YUYV422, ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
- PIX_FMT_RGB24, ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
- PIX_FMT_BGR24, ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
- PIX_FMT_YUV422P, ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
- PIX_FMT_YUV444P, ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
- PIX_FMT_RGB32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
- PIX_FMT_YUV410P, ///< Planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
- PIX_FMT_YUV411P, ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
- PIX_FMT_RGB565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in cpu endianness
- PIX_FMT_RGB555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 0
- PIX_FMT_GRAY8, ///< Y , 8bpp
- PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black
- PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white
- PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
- PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
- PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
- PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
- PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
- PIX_FMT_XVMC_MPEG2_IDCT,
- PIX_FMT_UYVY422, ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
- PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
- PIX_FMT_BGR32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness
- PIX_FMT_BGR565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), in cpu endianness
- PIX_FMT_BGR555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1
- PIX_FMT_BGR8, ///< Packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
- PIX_FMT_BGR4, ///< Packed RGB 1:2:1, 4bpp, (msb)1B 2G 1R(lsb)
- PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
- PIX_FMT_RGB8, ///< Packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
- PIX_FMT_RGB4, ///< Packed RGB 1:2:1, 4bpp, (msb)1R 2G 1B(lsb)
- PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
- PIX_FMT_NV12, ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
- PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
- PIX_FMT_RGB32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness
- PIX_FMT_BGR32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness
- PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
- PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
- PIX_FMT_YUV440P, ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
- PIX_FMT_YUVJ440P, ///< Planar YUV 4:4:0 full scale (jpeg)
- PIX_FMT_YUVA420P, ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
- PIX_FMT_VDPAU_H264,///< H264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- 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
- };
- #ifdef WORDS_BIGENDIAN
- #define PIX_FMT_RGBA PIX_FMT_RGB32_1
- #define PIX_FMT_BGRA PIX_FMT_BGR32_1
- #define PIX_FMT_ARGB PIX_FMT_RGB32
- #define PIX_FMT_ABGR PIX_FMT_BGR32
- #define PIX_FMT_GRAY16 PIX_FMT_GRAY16BE
- #else
- #define PIX_FMT_RGBA PIX_FMT_BGR32
- #define PIX_FMT_BGRA PIX_FMT_RGB32
- #define PIX_FMT_ARGB PIX_FMT_BGR32_1
- #define PIX_FMT_ABGR PIX_FMT_RGB32_1
- #define PIX_FMT_GRAY16 PIX_FMT_GRAY16LE
- #endif
- #if LIBAVUTIL_VERSION_INT < (50<<16)
- #define PIX_FMT_UYVY411 PIX_FMT_UYYVYY411
- #define PIX_FMT_RGBA32 PIX_FMT_RGB32
- #define PIX_FMT_YUV422 PIX_FMT_YUYV422
- #endif
- #endif /* AVUTIL_AVUTIL_H */