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dianjixz
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
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*
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* SPDX-License-Identifier: MIT
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*/
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#ifndef CAMERA_H
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#define CAMERA_H
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#include <stdint.h>
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#include <pthread.h>
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#define CONFIG_CAPTURE_BUF_CNT 10
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#define CONFIG_DEVNAME_LEN 32
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#if __cplusplus
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extern "C" {
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#endif
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typedef void (*vcamera_frame_get)(uint8_t* pdata, uint32_t width, uint32_t height, uint32_t length, void* ctx);
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typedef enum { CAMERA_STATE_CLOSE, CAMERA_SATTE_OPEN, CAMERA_SATTE_CAP, CAMERA_STATE_ERR } CAMERA_STATE_t;
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typedef struct {
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void* pstart;
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int length;
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} CAMERA_Buffer_t;
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typedef struct camera_t {
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char dev_name_[CONFIG_DEVNAME_LEN];
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int dev_fd_;
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int buffer_cnt_;
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int capture_fps_;
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int is_alloc_;
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uint32_t width_;
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uint32_t height_;
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CAMERA_Buffer_t* pcamera_buffer_;
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vcamera_frame_get pcallback_;
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CAMERA_STATE_t state_; /* 0 Not open, 1 Turn on the camera, 2 Start capturing,
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3 Error */
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pthread_t capture_thread_id_;
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void* ctx_;
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/**
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* Set capture frame callback
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* Return value: 0 for success, -1 for failure
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*/
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int (*camera_capture_callback_set)(struct camera_t*, vcamera_frame_get);
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/**
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* Start capturing
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* Return value: 0 for success, -1 for failure
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*/
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int (*camera_capture_start)(struct camera_t*);
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/**
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* Stop capturing
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* Return value: 0 for success, -1 for failure
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*/
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int (*camera_capture_stop)(struct camera_t*);
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void (*camera_set_ctx)(struct camera_t*, void*);
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} camera_t;
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/**
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* Open the camera
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* @pdev_name Device node
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* Return value: NULL for failure
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*/
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camera_t* camera_open(const char* pdev_name, int width, int height, int fps);
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/**
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* Open the camera from config
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* @pDevName Device node
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* Return value: 0 for success, -1 for failure
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*/
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int camera_open_from(camera_t* camera);
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/**
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* Close the camera
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* Return value: 0 for success, -1 for failure
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*/
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int camera_close(camera_t* camera);
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#if __cplusplus
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}
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#endif
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#endif |