NAME¶

SDL_ReleaseCameraFrame - Release a frame of video acquired from a camera.

HEADER FILE¶

Defined in SDL3/SDL_camera.h

SYNOPSIS¶

#include "SDL3/SDL.h"

void SDL_ReleaseCameraFrame(SDL_Camera *camera, SDL_Surface *frame);

DESCRIPTION¶

Let the back-end re-use the internal buffer for camera.

This function _must_ be called only on surface objects returned by

SDL_AcquireCameraFrame (). This function should be called as quickly as possible after acquisition, as SDL keeps a small FIFO queue of surfaces for video frames; if surfaces aren't released in a timely manner, SDL may drop upcoming video frames from the camera.

If the app needs to keep the surface for a significant time, they should make a copy of it and release the original.

The app should not use the surface again after calling this function; assume the surface is freed and the pointer is invalid.

FUNCTION PARAMETERS¶

camera

opened camera device.

frame

the video frame surface to release.

THREAD SAFETY¶

It is safe to call this function from any thread.

AVAILABILITY¶

This function is available since SDL 3.1.3.

SEE ALSO¶

•(3), SDL_AcquireCameraFrame(3)