Web page hosted on ESP32

[pogmem]

Hi!
I would like to stream video from my camera to my phone, and idea is ESP32 in softAP mode, hosting web page that show output from camera.
I have configured softAP, and started basic webserver. When I try to enter 192.168.4.1:80/remote (configured uri), it says that page don't exist. Do I have to wrap everything in some sort of html, and then host it?

[ESP_Sprite]

Hard to say without knowing the code you use. Sorry, we don't have a crystal ball...

[pogmem]

Actually webserver and softAP is working. Problem is related to ESP-CAM lib, from espressif.
When I query server, in make monitor error is shown:

Code: Select all

E (59477) camera: Failed to get the frame on time!
E (59477) camera.c:: Camera capture failed
W (59477) httpd_uri: httpd_uri: uri handler execution failed

When saving camera buffer to SD, there were no errors.

My cam stream code:

Code: Select all

esp_err_t video_stream_handler(httpd_req_t *req){
    camera_fb_t * fb = NULL;
    esp_err_t res = ESP_OK;
    size_t _jpg_buf_len;
    uint8_t * _jpg_buf;
    char * part_buf[64];
    static int64_t last_frame = 0;
    if(!last_frame) {
        last_frame = esp_timer_get_time();
    }

    res = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
    if(res != ESP_OK){
        return res;
    }

    while(true){
        fb = esp_camera_fb_get();
        if (!fb) {
            ESP_LOGE(TAG, "Camera capture failed");
            res = ESP_FAIL;
            break;
        } else {
            if(fb->format != PIXFORMAT_JPEG){
                bool jpeg_converted = frame2jpg(fb, 80, &_jpg_buf, &_jpg_buf_len);
                if(!jpeg_converted){
                    ESP_LOGE(TAG, "JPEG compression failed");
                    esp_camera_fb_return(fb);
                    res = ESP_FAIL;
                }
            } else {
                _jpg_buf_len = fb->len;
                _jpg_buf = fb->buf;
            }
        }
        if(res == ESP_OK){
            res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
        }
        if(res == ESP_OK){
            size_t hlen = snprintf((char *)part_buf, 64, _STREAM_PART, _jpg_buf_len);

            res = httpd_resp_send_chunk(req, (const char *)part_buf, hlen);
        }
        if(res == ESP_OK){
            res = httpd_resp_send_chunk(req, (const char *)_jpg_buf, _jpg_buf_len);
        }
        if(fb->format != PIXFORMAT_JPEG){
            free(_jpg_buf);
        }
        esp_camera_fb_return(fb);
        if(res != ESP_OK){
            break;
        }
        int64_t fr_end = esp_timer_get_time();
        int64_t frame_time = fr_end - last_frame;
        last_frame = fr_end;
        frame_time /= 1000;
        ESP_LOGI(TAG, "MJPG: %uKB %ums (%.1ffps)",
            (uint32_t)(_jpg_buf_len/1024),
            (uint32_t)frame_time, 1000.0 / (uint32_t)frame_time);
    }

    last_frame = 0;
    return res;
}

[ESP_Sprite]

Could be a performance thing: the http/wifi/... stack is too busy with sending data to allow the camera subsystem to get the next frame properly. You could try moving the various tasks to a different core and see if that helps.