| #ifndef YUV_RGB_H_ |
| #define YUV_RGB_H_ |
| |
| // Copyright 2016 Adrien Descamps |
| // Distributed under BSD 3-Clause License |
| |
| // Provide optimized functions to convert images from 8bits yuv420 to rgb24 format |
| |
| // There are a few slightly different variations of the YCbCr color space with different parameters that |
| // change the conversion matrix. |
| // The three most common YCbCr color space, defined by BT.601, BT.709 and JPEG standard are implemented here. |
| // See the respective standards for details |
| // The matrix values used are derived from http://www.equasys.de/colorconversion.html |
| |
| // YUV420 is stored as three separate channels, with U and V (Cb and Cr) subsampled by a 2 factor |
| // For conversion from yuv to rgb, no interpolation is done, and the same UV value are used for 4 rgb pixels. This |
| // is suboptimal for image quality, but by far the fastest method. |
| |
| // For all methods, width and height should be even, if not, the last row/column of the result image won't be affected. |
| // For sse methods, if the width if not divisable by 32, the last (width%32) pixels of each line won't be affected. |
| |
| /*#include <stdint.h>*/ |
| |
| // yuv to rgb, standard c implementation |
| #include "yuv_rgb_std.h" |
| |
| // yuv to rgb, sse2 implementation |
| #include "yuv_rgb_sse.h" |
| |
| // yuv to rgb, lsx implementation |
| #include "yuv_rgb_lsx.h" |
| |
| #endif /* YUV_RGB_H_ */ |
