avutil.h
上传用户:luocongwen
上传日期:2007-11-25
资源大小:1022k
文件大小:3k
- #ifndef AVUTIL_H
- #define AVUTIL_H
- /**
- * @file avutil.h
- * external api header.
- */
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define AV_STRINGIFY(s) AV_TOSTRING(s)
- #define AV_TOSTRING(s) #s
- #define LIBAVUTIL_VERSION_INT ((49<<16)+(0<<8)+0)
- #define LIBAVUTIL_VERSION 49.0.0
- #define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
- #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
- #include "common.h"
- #include "mathematics.h"
- #include "rational.h"
- #include "integer.h"
- #include "intfloat_readwrite.h"
- /**
- * Pixel format. Notes:
- *
- * PIX_FMT_RGBA32 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_RGBA32 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 (1 Cr & Cb sample per 2x2 Y samples)
- PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
- PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
- PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
- PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
- PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
- PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
- PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
- PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
- PIX_FMT_RGB565, ///< always stored in cpu endianness
- PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
- PIX_FMT_GRAY8,
- PIX_FMT_MONOWHITE, ///< 0 is white
- PIX_FMT_MONOBLACK, ///< 0 is black
- PIX_FMT_PAL8, ///< 8 bit with RGBA palette
- PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
- PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
- PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 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 pixel, Cb Y0 Cr Y1
- PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
- PIX_FMT_NB,
- };
- #ifdef __cplusplus
- }
- #endif
- #endif /* AVUTIL_H */