simple_frame_swap_t Struct Reference

Simple atomic frame swap structure. More...

#include <lib/video/video_frame.h>

Data Fields
atomic_uintptr_t	current_frame
	Atomic pointer to current frame.
video_frame_t	frame_a
	First pre-allocated frame.
video_frame_t	frame_b
	Second pre-allocated frame.
atomic_bool	use_frame_a
	Atomic flag: true = use frame_a next, false = use frame_b.

Detailed Description

Simple atomic frame swap structure.

Simplified frame management for basic use cases that don't need statistics. Uses atomic pointer swaps for lock-free frame updates. This is the pattern used by many video streaming services for simple frame delivery.

Note

This is a lighter-weight alternative to video_frame_buffer_t when statistics tracking is not needed.

Uses two pre-allocated frames that alternate on each update.

Atomic pointer swap enables lock-free operation.

Definition at line 261 of file video_frame.h.

Field Documentation

current_frame

atomic_uintptr_t simple_frame_swap_t::current_frame

Atomic pointer to current frame.

Definition at line 262 of file video_frame.h.

Referenced by simple_frame_swap_create(), simple_frame_swap_get(), and simple_frame_swap_update().

frame_a

video_frame_t simple_frame_swap_t::frame_a

First pre-allocated frame.

Definition at line 263 of file video_frame.h.

Referenced by simple_frame_swap_create(), simple_frame_swap_destroy(), and simple_frame_swap_update().

frame_b

video_frame_t simple_frame_swap_t::frame_b

Second pre-allocated frame.

Definition at line 264 of file video_frame.h.

Referenced by simple_frame_swap_create(), simple_frame_swap_destroy(), and simple_frame_swap_update().

use_frame_a

atomic_bool simple_frame_swap_t::use_frame_a

Atomic flag: true = use frame_a next, false = use frame_b.

Definition at line 265 of file video_frame.h.

Referenced by simple_frame_swap_create(), and simple_frame_swap_update().

---

The documentation for this struct was generated from the following file:

• video_frame.h