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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/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022 Jeff Epler for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#pragma once
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#include "py/enum.h"
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#include "py/obj.h"
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#include "esp_camera.h"
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#include "shared-bindings/busio/I2C.h"
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extern const mp_obj_type_t esp32_camera_camera_type;
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typedef struct esp32_camera_camera_obj esp32_camera_camera_obj_t;
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extern void common_hal_esp32_camera_camera_construct(
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esp32_camera_camera_obj_t *self,
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uint8_t data_pins[8],
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const mcu_pin_obj_t *external_clock_pin,
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const mcu_pin_obj_t *pixel_clock_pin,
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const mcu_pin_obj_t *vsync_pin,
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const mcu_pin_obj_t *href_pin,
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const mcu_pin_obj_t *powerdown_pin,
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const mcu_pin_obj_t *reset_pin,
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const busio_i2c_obj_t *i2c,
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mp_int_t external_clock_frequency,
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pixformat_t pixel_format,
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framesize_t frame_size,
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mp_int_t jpeg_quality,
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mp_int_t framebuffer_count,
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camera_grab_mode_t grab_mode);
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extern void common_hal_esp32_camera_camera_deinit(esp32_camera_camera_obj_t *self);
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extern bool common_hal_esp32_camera_camera_deinited(esp32_camera_camera_obj_t *self);
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extern bool common_hal_esp32_camera_camera_available(esp32_camera_camera_obj_t *self);
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extern camera_fb_t *common_hal_esp32_camera_camera_take(esp32_camera_camera_obj_t *self, int timeout_ms);
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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);
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#define DECLARE_SENSOR_GETSET(type, name, field_name, setter_function_name) \
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DECLARE_SENSOR_GET(type, name, field_name, setter_function_name) \
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DECLARE_SENSOR_SET(type, name, setter_function_name)
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#define DECLARE_SENSOR_STATUS_GETSET(type, name, status_field_name, setter_function_name) \
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DECLARE_SENSOR_GETSET(type, name, status.status_field_name, setter_function_name)
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#define DECLARE_SENSOR_STATUS_GET(type, name, status_field_name, setter_function_name) \
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DECLARE_SENSOR_GET(type, name, status.status_field_name, setter_function_name)
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#define DECLARE_SENSOR_GET(type, name, status_field_name, setter_function_name) \
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extern type common_hal_esp32_camera_camera_get_##name(esp32_camera_camera_obj_t * self);
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#define DECLARE_SENSOR_SET(type, name, setter_function_name) \
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extern void common_hal_esp32_camera_camera_set_##name(esp32_camera_camera_obj_t * self, type value);
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DECLARE_SENSOR_GET(pixformat_t, pixel_format, pixformat, set_pixformat)
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DECLARE_SENSOR_STATUS_GET(framesize_t, frame_size, framesize, set_framesize)
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DECLARE_SENSOR_STATUS_GETSET(int, contrast, contrast, set_contrast);
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DECLARE_SENSOR_STATUS_GETSET(int, brightness, brightness, set_brightness);
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DECLARE_SENSOR_STATUS_GETSET(int, saturation, saturation, set_saturation);
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DECLARE_SENSOR_STATUS_GETSET(int, sharpness, sharpness, set_sharpness);
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DECLARE_SENSOR_STATUS_GETSET(int, denoise, denoise, set_denoise);
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DECLARE_SENSOR_STATUS_GETSET(gainceiling_t, gainceiling, gainceiling, set_gainceiling);
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DECLARE_SENSOR_STATUS_GETSET(int, quality, quality, set_quality);
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DECLARE_SENSOR_STATUS_GETSET(bool, colorbar, colorbar, set_colorbar);
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DECLARE_SENSOR_STATUS_GETSET(bool, whitebal, whitebal, set_whitebal);
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DECLARE_SENSOR_STATUS_GETSET(bool, gain_ctrl, gain_ctrl, set_gain_ctrl);
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DECLARE_SENSOR_STATUS_GETSET(bool, exposure_ctrl, exposure_ctrl, set_exposure_ctrl);
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DECLARE_SENSOR_STATUS_GETSET(bool, hmirror, hmirror, set_hmirror);
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DECLARE_SENSOR_STATUS_GETSET(bool, vflip, vflip, set_vflip);
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DECLARE_SENSOR_STATUS_GETSET(bool, aec2, aec2, set_aec2);
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DECLARE_SENSOR_STATUS_GETSET(bool, awb_gain, awb_gain, set_awb_gain);
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DECLARE_SENSOR_STATUS_GETSET(int, agc_gain, agc_gain, set_agc_gain);
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DECLARE_SENSOR_STATUS_GETSET(int, aec_value, aec_value, set_aec_value);
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DECLARE_SENSOR_STATUS_GETSET(int, special_effect, special_effect, set_special_effect);
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DECLARE_SENSOR_STATUS_GETSET(int, wb_mode, wb_mode, set_wb_mode);
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DECLARE_SENSOR_STATUS_GETSET(int, ae_level, ae_level, set_ae_level);
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DECLARE_SENSOR_STATUS_GETSET(bool, dcw, dcw, set_dcw);
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DECLARE_SENSOR_STATUS_GETSET(bool, bpc, bpc, set_bpc);
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DECLARE_SENSOR_STATUS_GETSET(bool, wpc, wpc, set_wpc);
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DECLARE_SENSOR_STATUS_GETSET(bool, raw_gma, raw_gma, set_raw_gma);
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DECLARE_SENSOR_STATUS_GETSET(bool, lenc, lenc, set_lenc);
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// From settings
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extern camera_grab_mode_t common_hal_esp32_camera_camera_get_grab_mode(esp32_camera_camera_obj_t *self);
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extern int common_hal_esp32_camera_camera_get_framebuffer_count(esp32_camera_camera_obj_t *self);
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// From camera_sensor_info_t
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extern int common_hal_esp32_camera_camera_get_address(esp32_camera_camera_obj_t *self);
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extern const char *common_hal_esp32_camera_camera_get_sensor_name(esp32_camera_camera_obj_t *self);
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extern const bool common_hal_esp32_camera_camera_get_supports_jpeg(esp32_camera_camera_obj_t *self);
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extern framesize_t common_hal_esp32_camera_camera_get_max_frame_size(esp32_camera_camera_obj_t *self);
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extern int common_hal_esp32_camera_camera_get_width(esp32_camera_camera_obj_t *self);
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extern int common_hal_esp32_camera_camera_get_height(esp32_camera_camera_obj_t *self);
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