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6337178b4f
Also document it. Originally committed as revision 17018 to svn://svn.ffmpeg.org/ffmpeg/trunk
157 lines
7.8 KiB
C
157 lines
7.8 KiB
C
/*
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* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_AVUTIL_H
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#define AVUTIL_AVUTIL_H
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/**
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* @file libavutil/avutil.h
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* external API header
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*/
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#define AV_STRINGIFY(s) AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
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#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
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#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
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#define LIBAVUTIL_VERSION_MAJOR 49
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#define LIBAVUTIL_VERSION_MINOR 14
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#define LIBAVUTIL_VERSION_MICRO 0
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#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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LIBAVUTIL_VERSION_MINOR, \
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LIBAVUTIL_VERSION_MICRO)
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#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
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LIBAVUTIL_VERSION_MINOR, \
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LIBAVUTIL_VERSION_MICRO)
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#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
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#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
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/**
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* Returns the LIBAVUTIL_VERSION_INT constant.
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*/
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unsigned avutil_version(void);
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#include "common.h"
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#include "mathematics.h"
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#include "rational.h"
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#include "intfloat_readwrite.h"
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#include "log.h"
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/**
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* Pixel format. Notes:
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*
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* PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA
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* color is put together as:
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* (A << 24) | (R << 16) | (G << 8) | B
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* This is stored as BGRA on little-endian CPU architectures and ARGB on
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* big-endian CPUs.
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*
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* When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
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* image data is stored in AVFrame.data[0]. The palette is transported in
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* AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
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* formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
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* also endian-specific). Note also that the individual RGB palette
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* components stored in AVFrame.data[1] should be in the range 0..255.
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* This is important as many custom PAL8 video codecs that were designed
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* to run on the IBM VGA graphics adapter use 6-bit palette components.
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*
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* For all the 8bit per pixel formats, an RGB32 palette is in data[1] like
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* for pal8. This palette is filled in automatically by the function
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* allocating the picture.
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*/
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enum PixelFormat {
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PIX_FMT_NONE= -1,
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PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
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PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
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PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
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PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
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PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
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PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
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PIX_FMT_RGB32, ///< packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in CPU endianness
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PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
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PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
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PIX_FMT_RGB565, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in CPU endianness
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PIX_FMT_RGB555, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in CPU endianness, most significant bit to 0
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PIX_FMT_GRAY8, ///< Y , 8bpp
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PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black
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PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white
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PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
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PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG)
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PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG)
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PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG)
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PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
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PIX_FMT_XVMC_MPEG2_IDCT,
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PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
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PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
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PIX_FMT_BGR32, ///< packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in CPU endianness
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PIX_FMT_BGR565, ///< packed RGB 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), in CPU endianness
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PIX_FMT_BGR555, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in CPU endianness, most significant bit to 1
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PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
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PIX_FMT_BGR4, ///< packed RGB 1:2:1, 4bpp, (msb)1B 2G 1R(lsb)
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PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
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PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
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PIX_FMT_RGB4, ///< packed RGB 1:2:1, 4bpp, (msb)1R 2G 1B(lsb)
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PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
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PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
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PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
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PIX_FMT_RGB32_1, ///< packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in CPU endianness
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PIX_FMT_BGR32_1, ///< packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in CPU endianness
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PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
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PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
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PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
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PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG)
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PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
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PIX_FMT_VDPAU_H264,///< H.264 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
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PIX_FMT_VDPAU_MPEG1,///< MPEG-1 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
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PIX_FMT_VDPAU_MPEG2,///< MPEG-2 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
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PIX_FMT_VDPAU_WMV3,///< WMV3 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
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PIX_FMT_VDPAU_VC1, ///< VC-1 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
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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
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};
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#ifdef WORDS_BIGENDIAN
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#define PIX_FMT_RGBA PIX_FMT_RGB32_1
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#define PIX_FMT_BGRA PIX_FMT_BGR32_1
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#define PIX_FMT_ARGB PIX_FMT_RGB32
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#define PIX_FMT_ABGR PIX_FMT_BGR32
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#define PIX_FMT_GRAY16 PIX_FMT_GRAY16BE
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#else
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#define PIX_FMT_RGBA PIX_FMT_BGR32
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#define PIX_FMT_BGRA PIX_FMT_RGB32
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#define PIX_FMT_ARGB PIX_FMT_BGR32_1
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#define PIX_FMT_ABGR PIX_FMT_RGB32_1
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#define PIX_FMT_GRAY16 PIX_FMT_GRAY16LE
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#endif
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#if LIBAVUTIL_VERSION_INT < (50<<16)
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#define PIX_FMT_UYVY411 PIX_FMT_UYYVYY411
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#define PIX_FMT_RGBA32 PIX_FMT_RGB32
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#define PIX_FMT_YUV422 PIX_FMT_YUYV422
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#endif
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#endif /* AVUTIL_AVUTIL_H */
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