esp-who/components/common/app_camera.cpp

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#include "app_camera.hpp"
#include "esp_log.h"
#include "esp_system.h"
#include "app_define.h"
#include "dl_tool.hpp"
static const char *TAG = "app_camera";
void app_camera_init(const pixformat_t pixel_fromat, const framesize_t frame_size, const uint8_t fb_count, const uint8_t jpeg_quality)
{
ESP_LOGI(TAG, "Camera module is %s", CAMERA_MODULE_NAME);
#if CONFIG_CAMERA_MODEL_ESP_EYE || CONFIG_CAMERA_MODEL_ESP32_CAM_BOARD
/* IO13, IO14 is designed for JTAG by default,
* to use it as generalized input,
* firstly declair it as pullup input */
gpio_config_t conf;
conf.mode = GPIO_MODE_INPUT;
conf.pull_up_en = GPIO_PULLUP_ENABLE;
conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
conf.intr_type = GPIO_INTR_DISABLE;
conf.pin_bit_mask = 1LL << 13;
gpio_config(&conf);
conf.pin_bit_mask = 1LL << 14;
gpio_config(&conf);
#endif
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = CAMERA_PIN_D0;
config.pin_d1 = CAMERA_PIN_D1;
config.pin_d2 = CAMERA_PIN_D2;
config.pin_d3 = CAMERA_PIN_D3;
config.pin_d4 = CAMERA_PIN_D4;
config.pin_d5 = CAMERA_PIN_D5;
config.pin_d6 = CAMERA_PIN_D6;
config.pin_d7 = CAMERA_PIN_D7;
config.pin_xclk = CAMERA_PIN_XCLK;
config.pin_pclk = CAMERA_PIN_PCLK;
config.pin_vsync = CAMERA_PIN_VSYNC;
config.pin_href = CAMERA_PIN_HREF;
config.pin_sscb_sda = CAMERA_PIN_SIOD;
config.pin_sscb_scl = CAMERA_PIN_SIOC;
config.pin_pwdn = CAMERA_PIN_PWDN;
config.pin_reset = CAMERA_PIN_RESET;
config.xclk_freq_hz = XCLK_FREQ_HZ;
config.pixel_format = pixel_fromat;
config.frame_size = frame_size;
config.jpeg_quality = jpeg_quality;
config.fb_count = fb_count;
config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
// camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK)
{
ESP_LOGE(TAG, "Camera init failed with error 0x%x", err);
return;
}
sensor_t *s = esp_camera_sensor_get();
s->set_vflip(s, 1); //flip it back
//initial sensors are flipped vertically and colors are a bit saturated
if (s->id.PID == OV3660_PID)
{
s->set_brightness(s, 1); //up the blightness just a bit
s->set_saturation(s, -2); //lower the saturation
}
}
void *app_camera_decode(camera_fb_t *fb)
{
if (fb->format == PIXFORMAT_RGB565)
{
return (void *)fb->buf;
}
else
{
uint8_t *image_ptr = (uint8_t *)malloc(fb->height * fb->width * 3 * sizeof(uint8_t));
if (image_ptr)
{
if (fmt2rgb888(fb->buf, fb->len, fb->format, image_ptr))
{
return (void *)image_ptr;
}
else
{
ESP_LOGE(TAG, "fmt2rgb888 failed");
dl::tool::free_aligned(image_ptr);
}
}
else
{
ESP_LOGE(TAG, "malloc memory for image rgb888 failed");
}
}
return NULL;
}