Files
ESP32S3_vt/components/esp32-camera/driver/include/esp_camera_af.h
T
Horldsence 4f893ce140 ESP32-S3 摄像头图传:固件 + Slint 客户端 + 共享协议
两块 ESP32-S3-WROOM-1-N16R8 图传板(DVP 接口接 OV2640/OV3660/OV5640),
向队伍客户端与裁判终端推 UDP 图传。固件是跑在 ESP-IDF 上的 Rust,用官方
esp32-camera 组件采集;客户端是 Rust + Slint 桌面程序。

三个 crate 各自独立构建:
  .            firmware,交叉编译到 Xtensa
  protocol/    线路格式与帧重组,两端共用,无 ESP-IDF 依赖,有单元测试
  client/      Slint 桌面客户端

视频走 UDP 而非 TCP:实测传感器产出 22 fps,TCP MJPEG 只送出 1.9 fps,
且只占用链路能力的 1%——链路是空的,帧堵在队头阻塞后面等一个实时画面
等不起的重传计时器。改为独立数据报、不重传、缺片丢整帧后达到 20.8 fps。

发现是双向的:板子每 2 秒广播 Hello,客户端广播 Subscribe,板子据此定向
推流。板子身份由 MAC 派生,重启不变,所以客户端可以把绑定存进配置。

裁判端同时收两块板子(每个发送方一个重组器),队伍端绑定其中一块并只显示
自己那一边的血量。装甲板接口已预留(ArmorSource trait + ARMOR_PORT),
当前无数据源,界面显示占位符。

vendor 了 esp32-camera 2.1.7:组件注册表的版本求解器找不到它,且需要打一处
补丁(见 components/esp32-camera/target/esp32s3/ll_cam.c)。

.gitignore 三条 target/ 都锚定在根目录,因为 protocol/ 与 client/ 各自也是
独立 crate;而 components/esp32-camera/target/ 是上游的按芯片分目录,里面是
源码,必须保留。
2026-10-05 18:22:19 +08:00

105 lines
2.5 KiB
C

#pragma once
#include <stdbool.h>
#include <stdint.h>
#include "esp_err.h"
#include "sensor.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Auto-focus modes.
*
* - AUTO: sensor runs its internal AF routine (continuous, if supported).
* - MANUAL: AF is not running automatically; user triggers focus explicitly.
*/
typedef enum {
ESP_CAMERA_AF_MODE_AUTO = 0,
ESP_CAMERA_AF_MODE_MANUAL = 1,
} esp_camera_af_mode_t;
/**
* @brief Auto-focus configuration.
*
* Notes:
* - Some fields are sensor-dependent (e.g., manual position control).
* - For sensors without AF hardware/firmware support, APIs return ESP_ERR_NOT_SUPPORTED.
*/
typedef struct {
esp_camera_af_mode_t mode;
/**
* @brief Step size for manual stepping algorithms.
*
* Used by software search helpers and sensors that expose manual lens control.
*/
uint16_t step_size;
/**
* @brief Inclusive focus range limits for manual stepping algorithms.
*/
uint16_t range_min;
uint16_t range_max;
/**
* @brief Default timeout used by AF operations, in milliseconds.
*/
uint32_t timeout_ms;
} esp_camera_af_config_t;
/**
* @brief AF status values (sensor-specific raw values).
*/
typedef struct {
uint8_t raw;
bool focused;
bool busy;
} esp_camera_af_status_t;
/**
* @brief Return whether the attached sensor supports AF through this module.
*/
bool esp_camera_af_is_supported(const sensor_t *sensor);
/**
* @brief Initialize AF support for the attached sensor.
*/
esp_err_t esp_camera_af_init(sensor_t *sensor, const esp_camera_af_config_t *config);
/**
* @brief Change AF mode.
*/
esp_err_t esp_camera_af_set_mode(sensor_t *sensor, esp_camera_af_mode_t mode);
/**
* @brief Trigger a single autofocus cycle (if supported).
*/
esp_err_t esp_camera_af_trigger(sensor_t *sensor);
/**
* @brief Read current AF status.
*/
esp_err_t esp_camera_af_get_status(sensor_t *sensor, esp_camera_af_status_t *out_status);
/**
* @brief Wait for AF to finish or report focused.
*
* @param timeout_ms If 0, uses config timeout passed to esp_camera_af_init().
*/
esp_err_t esp_camera_af_wait(sensor_t *sensor, uint32_t timeout_ms, esp_camera_af_status_t *out_status);
/**
* @brief Set manual lens position.
*
* Some sensors (including OV5640 when using internal AF firmware only) may not expose a safe
* manual lens position register via the public driver; in those cases this returns ESP_ERR_NOT_SUPPORTED.
*/
esp_err_t esp_camera_af_set_manual_position(sensor_t *sensor, uint16_t position);
#ifdef __cplusplus
}
#endif