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circuitpython/ports/espressif/bindings/esp32_camera/Camera.h

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add esp32-camera This uses the esp32-camera code instead of our own homebrewed camera code. In theory it supports esp32, esp32-s2 and esp32-s3, as long as they have PSRAM. This is very basic and doesn't support changing any camera parameters, including switching resolution or pixelformat. This is tested on the Kaluga (ESP32-S2) and ESP32-S3-Eye boards. First, reserve some PSRAM by putting this line in `CIRCUITPY/_env`: ``` CIRCUITPY_RESERVED_PSRAM=524288 ``` and hard-reset the board for it to take effect. Now, the following script will take a very low-resolution jpeg file and print it in the REPL in escape coded form: ```python import board import esp32_camera c = esp32_camera.Camera( data_pins=board.CAMERA_DATA, external_clock_pin=board.CAMERA_XCLK, pixel_clock_pin=board.CAMERA_PCLK, vsync_pin=board.CAMERA_VSYNC, href_pin=board.CAMERA_HREF, pixel_format=esp32_camera.PixelFormat.JPEG, i2c=board.I2C(), external_clock_frequency=20_000_000) m = c.take() if m is not None: print(bytes(m)) ``` Then on desktop open a python repl and run something like ```python >>> with open("my.jpg", "wb") as f: f.write(<BIG PASTE FROM REPL>) ``` and open my.jpg in a viewer.
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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 Jeff Epler for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#pragma once
#include "py/enum.h"
#include "py/obj.h"
#include "esp_camera.h"
#include "shared-bindings/busio/I2C.h"
extern const mp_obj_type_t esp32_camera_camera_type;
typedef struct esp32_camera_camera_obj esp32_camera_camera_obj_t;
extern void common_hal_esp32_camera_camera_construct(
esp32_camera_camera_obj_t *self,
uint8_t data_pins[8],
const mcu_pin_obj_t *external_clock_pin,
const mcu_pin_obj_t *pixel_clock_pin,
const mcu_pin_obj_t *vsync_pin,
const mcu_pin_obj_t *href_pin,
const mcu_pin_obj_t *powerdown_pin,
const mcu_pin_obj_t *reset_pin,
lock and unlock i2c bus around any ops that might access it
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busio_i2c_obj_t *i2c,
add esp32-camera This uses the esp32-camera code instead of our own homebrewed camera code. In theory it supports esp32, esp32-s2 and esp32-s3, as long as they have PSRAM. This is very basic and doesn't support changing any camera parameters, including switching resolution or pixelformat. This is tested on the Kaluga (ESP32-S2) and ESP32-S3-Eye boards. First, reserve some PSRAM by putting this line in `CIRCUITPY/_env`: ``` CIRCUITPY_RESERVED_PSRAM=524288 ``` and hard-reset the board for it to take effect. Now, the following script will take a very low-resolution jpeg file and print it in the REPL in escape coded form: ```python import board import esp32_camera c = esp32_camera.Camera( data_pins=board.CAMERA_DATA, external_clock_pin=board.CAMERA_XCLK, pixel_clock_pin=board.CAMERA_PCLK, vsync_pin=board.CAMERA_VSYNC, href_pin=board.CAMERA_HREF, pixel_format=esp32_camera.PixelFormat.JPEG, i2c=board.I2C(), external_clock_frequency=20_000_000) m = c.take() if m is not None: print(bytes(m)) ``` Then on desktop open a python repl and run something like ```python >>> with open("my.jpg", "wb") as f: f.write(<BIG PASTE FROM REPL>) ``` and open my.jpg in a viewer.
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mp_int_t external_clock_frequency,
pixformat_t pixel_format,
framesize_t frame_size,
mp_int_t jpeg_quality,
mp_int_t framebuffer_count,
camera_grab_mode_t grab_mode);
extern void common_hal_esp32_camera_camera_deinit(esp32_camera_camera_obj_t *self);
extern bool common_hal_esp32_camera_camera_deinited(esp32_camera_camera_obj_t *self);
extern bool common_hal_esp32_camera_camera_available(esp32_camera_camera_obj_t *self);
extern camera_fb_t *common_hal_esp32_camera_camera_take(esp32_camera_camera_obj_t *self, int timeout_ms);
Allow changing camera settings that require reinit These can only be changed in a group, though any items to keep unchanged can be unspecified or specified as None.
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extern void common_hal_esp32_camera_camera_reconfigure(esp32_camera_camera_obj_t *self, framesize_t frame_size, pixformat_t pixel_format, camera_grab_mode_t grab_mode, mp_int_t framebuffer_count);
Implement a pile of getters & setters
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#define DECLARE_SENSOR_GETSET(type, name, field_name, setter_function_name) \
DECLARE_SENSOR_GET(type, name, field_name, setter_function_name) \
DECLARE_SENSOR_SET(type, name, setter_function_name)
#define DECLARE_SENSOR_STATUS_GETSET(type, name, status_field_name, setter_function_name) \
DECLARE_SENSOR_GETSET(type, name, status.status_field_name, setter_function_name)
Allow changing camera settings that require reinit These can only be changed in a group, though any items to keep unchanged can be unspecified or specified as None.
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#define DECLARE_SENSOR_STATUS_GET(type, name, status_field_name, setter_function_name) \
DECLARE_SENSOR_GET(type, name, status.status_field_name, setter_function_name)
Implement a pile of getters & setters
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#define DECLARE_SENSOR_GET(type, name, status_field_name, setter_function_name) \
extern type common_hal_esp32_camera_camera_get_##name(esp32_camera_camera_obj_t * self);
#define DECLARE_SENSOR_SET(type, name, setter_function_name) \
extern void common_hal_esp32_camera_camera_set_##name(esp32_camera_camera_obj_t * self, type value);
Allow changing camera settings that require reinit These can only be changed in a group, though any items to keep unchanged can be unspecified or specified as None.
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DECLARE_SENSOR_GET(pixformat_t, pixel_format, pixformat, set_pixformat)
DECLARE_SENSOR_STATUS_GET(framesize_t, frame_size, framesize, set_framesize)
Implement a pile of getters & setters
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DECLARE_SENSOR_STATUS_GETSET(int, contrast, contrast, set_contrast);
DECLARE_SENSOR_STATUS_GETSET(int, brightness, brightness, set_brightness);
DECLARE_SENSOR_STATUS_GETSET(int, saturation, saturation, set_saturation);
DECLARE_SENSOR_STATUS_GETSET(int, sharpness, sharpness, set_sharpness);
DECLARE_SENSOR_STATUS_GETSET(int, denoise, denoise, set_denoise);
DECLARE_SENSOR_STATUS_GETSET(gainceiling_t, gainceiling, gainceiling, set_gainceiling);
DECLARE_SENSOR_STATUS_GETSET(int, quality, quality, set_quality);
DECLARE_SENSOR_STATUS_GETSET(bool, colorbar, colorbar, set_colorbar);
DECLARE_SENSOR_STATUS_GETSET(bool, whitebal, whitebal, set_whitebal);
DECLARE_SENSOR_STATUS_GETSET(bool, gain_ctrl, gain_ctrl, set_gain_ctrl);
DECLARE_SENSOR_STATUS_GETSET(bool, exposure_ctrl, exposure_ctrl, set_exposure_ctrl);
DECLARE_SENSOR_STATUS_GETSET(bool, hmirror, hmirror, set_hmirror);
DECLARE_SENSOR_STATUS_GETSET(bool, vflip, vflip, set_vflip);
DECLARE_SENSOR_STATUS_GETSET(bool, aec2, aec2, set_aec2);
DECLARE_SENSOR_STATUS_GETSET(bool, awb_gain, awb_gain, set_awb_gain);
DECLARE_SENSOR_STATUS_GETSET(int, agc_gain, agc_gain, set_agc_gain);
DECLARE_SENSOR_STATUS_GETSET(int, aec_value, aec_value, set_aec_value);
DECLARE_SENSOR_STATUS_GETSET(int, special_effect, special_effect, set_special_effect);
DECLARE_SENSOR_STATUS_GETSET(int, wb_mode, wb_mode, set_wb_mode);
DECLARE_SENSOR_STATUS_GETSET(int, ae_level, ae_level, set_ae_level);
DECLARE_SENSOR_STATUS_GETSET(bool, dcw, dcw, set_dcw);
DECLARE_SENSOR_STATUS_GETSET(bool, bpc, bpc, set_bpc);
DECLARE_SENSOR_STATUS_GETSET(bool, wpc, wpc, set_wpc);
DECLARE_SENSOR_STATUS_GETSET(bool, raw_gma, raw_gma, set_raw_gma);
DECLARE_SENSOR_STATUS_GETSET(bool, lenc, lenc, set_lenc);
Add more getters
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Allow changing camera settings that require reinit These can only be changed in a group, though any items to keep unchanged can be unspecified or specified as None.
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// From settings
extern camera_grab_mode_t common_hal_esp32_camera_camera_get_grab_mode(esp32_camera_camera_obj_t *self);
extern int common_hal_esp32_camera_camera_get_framebuffer_count(esp32_camera_camera_obj_t *self);
Add more getters
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// From camera_sensor_info_t
extern int common_hal_esp32_camera_camera_get_address(esp32_camera_camera_obj_t *self);
extern const char *common_hal_esp32_camera_camera_get_sensor_name(esp32_camera_camera_obj_t *self);
extern const bool common_hal_esp32_camera_camera_get_supports_jpeg(esp32_camera_camera_obj_t *self);
extern framesize_t common_hal_esp32_camera_camera_get_max_frame_size(esp32_camera_camera_obj_t *self);
extern int common_hal_esp32_camera_camera_get_width(esp32_camera_camera_obj_t *self);
extern int common_hal_esp32_camera_camera_get_height(esp32_camera_camera_obj_t *self);