|  | /* | 
|  | Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org> | 
|  |  | 
|  | This software is provided 'as-is', without any express or implied | 
|  | warranty.  In no event will the authors be held liable for any damages | 
|  | arising from the use of this software. | 
|  |  | 
|  | Permission is granted to anyone to use this software for any purpose, | 
|  | including commercial applications, and to alter it and redistribute it | 
|  | freely. | 
|  | */ | 
|  |  | 
|  | /* These functions are designed for testing correctness, not for speed */ | 
|  |  | 
|  | extern SDL_bool ConvertRGBtoYUV(Uint32 format, Uint8 *src, int pitch, Uint8 *out, int w, int h, SDL_YUV_CONVERSION_MODE mode, int monochrome, int luminance); | 
|  | extern int CalculateYUVPitch(Uint32 format, int width); |