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ESP32-Video

ESP32-Video is the esp-idf component ported from the esp_8_bit project.

Usage

Suppose your project directory looks like this

- YourProject
  - components/
  - main/
  - CMakeLists.txt
  - sdkconfig

1. Add the library as a new component to your project.

git submodule add https://github.com/ChisBread/esp32-video components/esp32-video

2. Compilation optimization set to O2 and default CPU frequency set to 240MHz.(required)

idf.py menuconfig

3. Combining esp32-video with an existing graphics library

Examples

composite_video_lvgl_benchmark

LVGL

Initialize esp32-video

#include "capi_video.h"
//....
void app_main(void) {
    esp32_video_start(0);// PAL
    //esp32_video_start(1);// NTSC
    // do something...
    esp32_video_stop(); // Video output can be turned off and started at runtime
}

LVGL driver

#include "capi_video.h"
//....
static void  lvgl_esp32_video_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p) {
    // esp32_video_sync(); // Display is more stable, but more stuttering
    // Set colors one by one
    for(int y = area->y1; y <= area->y2; ++y) {
        for(int x = area->x1; x <= area->x2; ++x) {
            esp32_video_set_color(x, y, lv_color_to8(*color_p));
            ++color_p;
        }
    }
}