From cfe725ef4bf02a976a311706aa3c59e3818d3285 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 1 Sep 2003 18:40:43 +0000 Subject: added sources from gem2pdp-0.4 for Linux svn path=/trunk/externals/gem2pdp/; revision=923 --- yuv.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 yuv.h (limited to 'yuv.h') diff --git a/yuv.h b/yuv.h new file mode 100644 index 0000000..598e087 --- /dev/null +++ b/yuv.h @@ -0,0 +1,33 @@ +/* + * EffecTV - Realtime Digital Video Effector + * Copyright (C) 2001-2002 FUKUCHI Kentaro + * + * yuv.c: YUV(YCbCr) color system utilities + * + */ + +#include + +/* + * conversion from YUV to RGB + * r = 1.164*(y-16) + 1.596*(v-128); + * g = 1.164*(y-16) - 0.813*(v-128) - 0.391*(u-128); + * b = 1.164*(y-16) + 2.018*(u-128); + * conversion from RGB to YUV + * y = 0.257*r + 0.504*g + 0.098*b + 16 + * u = -0.148*r - 0.291*g + 0.439*b + 128 + * v = 0.439*r - 0.368*g - 0.071*b + 128 + */ + +extern "C" { +int yuv_init(void); +unsigned char yuv_RGBtoY(int rgb); +unsigned char yuv_RGBtoU(int rgb); +unsigned char yuv_RGBtoV(int rgb); +unsigned char yuv_YUVtoR(unsigned char y, unsigned char u, unsigned char v); +unsigned char yuv_YUVtoG(unsigned char y, unsigned char u, unsigned char v); +unsigned char yuv_YUVtoB(unsigned char y, unsigned char u, unsigned char v); +int yuv_YUVtoRGB(unsigned char y, unsigned char u, unsigned char v); +void yuv_Y122RGB( short int* packet, unsigned int *rgb, int width, int height ); +void yuv_RGB2Y12( unsigned int *rgb, short int* packet, int width, int height ); +} -- cgit v1.2.1