SDL_ReleaseCameraFrame3
Release a frame of video acquired from a camera.
Usage
#include "SDL3/SDL.h"
void SDL_ReleaseCameraFrame(SDL_Camera *camera, SDL_Surface *frame);
Header file
Defined in SDL3/SDL_camera.h
Overview
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.