(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_UpdateYUVTexture

Update a rectangle within a planar YV12 or IYUV texture with new pixel data.

Header File

Syntax

int SDL_UpdateYUVTexture(SDL_Texture * texture,
                         const SDL_Rect * rect,
                         const Uint8 *Yplane, int Ypitch,
                         const Uint8 *Uplane, int Upitch,
                         const Uint8 *Vplane, int Vpitch);

Function Parameters

SDL_Texture *	texture	the texture to update.
const SDL_Rect *	rect	a pointer to the rectangle of pixels to update, or NULL to update the entire texture.
const Uint8 *	Yplane	the raw pixel data for the Y plane.
int	Ypitch	the number of bytes between rows of pixel data for the Y plane.
const Uint8 *	Uplane	the raw pixel data for the U plane.
int	Upitch	the number of bytes between rows of pixel data for the U plane.
const Uint8 *	Vplane	the raw pixel data for the V plane.
int	Vpitch	the number of bytes between rows of pixel data for the V plane.

Return Value

(int) Returns 0 on success or -1 if the texture is not valid; call SDL_GetError() for more information.

Remarks

You can use SDL_UpdateTexture() as long as your pixel data is a contiguous block of Y and U/V planes in the proper order, but this function is available if your pixel data is not contiguous.

Version

This function is available since SDL 2.0.1.