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80 lines
2.9 KiB
80 lines
2.9 KiB
#ifndef AVUTIL_H |
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#define AVUTIL_H |
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/** |
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* @file avutil.h |
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* external api header. |
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*/ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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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 LIBAVUTIL_VERSION_INT ((49<<16)+(0<<8)+0) |
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#define LIBAVUTIL_VERSION 49.0.0 |
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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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#include "common.h" |
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#include "mathematics.h" |
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#include "rational.h" |
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#include "integer.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_RGBA32 is handled in an endian-specific manner. A 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] and, is 1024 bytes long (256 4-byte entries) and is |
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* formatted the same as in PIX_FMT_RGBA32 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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enum PixelFormat { |
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PIX_FMT_NONE= -1, |
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PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples) |
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PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr |
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PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB... |
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PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR... |
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PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples) |
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PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples) |
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PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness |
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PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples) |
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PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples) |
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PIX_FMT_RGB565, ///< always stored in cpu endianness |
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PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1 |
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PIX_FMT_GRAY8, |
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PIX_FMT_MONOWHITE, ///< 0 is white |
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PIX_FMT_MONOBLACK, ///< 0 is black |
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PIX_FMT_PAL8, ///< 8 bit with RGBA palette |
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PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg) |
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PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg) |
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PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 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 pixel, Cb Y0 Cr Y1 |
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PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3 |
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PIX_FMT_NB, |
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}; |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* AVUTIL_H */
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