operators/plot.py

import cv2


from dora import DoraStatus


CAMERA_WIDTH = 640
CAMERA_HEIGHT = 480

FONT = cv2.FONT_HERSHEY_SIMPLEX

writer = cv2.VideoWriter(
    "output01.avi",
    cv2.VideoWriter_fourcc(*"MJPG"),
    30,
    (CAMERA_WIDTH, CAMERA_HEIGHT),
)


class Operator:
    """
    Plot image and bounding box
    """

    def __init__(self):
        self.bboxs = []
        self.buffer = ""
        self.submitted = []
        self.lines = []

    def on_event(
        self,
        dora_event,
        send_output,
    ):
        if dora_event["type"] == "INPUT":
            id = dora_event["id"]
            value = dora_event["value"]
            if id == "image":

                image = (
                    value.to_numpy().reshape((CAMERA_HEIGHT, CAMERA_WIDTH, 3)).copy()
                )

                cv2.putText(
                    image, self.buffer, (20, 14 + 15 * 25), FONT, 0.8, (190, 250, 0), 2
                )

                i = 0
                for text in self.submitted[::-1]:
                    color = (
                        (0, 255, 190)
                        if text["role"] == "user_message"
                        else (0, 190, 255)
                    )
                    cv2.putText(
                        image,
                        text["content"],
                        (
                            20,
                            14 + (13 - i) * 25,
                        ),
                        FONT,
                        0.8,
                        color,
                        2,
                    )
                    i += 1
                writer.write(image)
                cv2.imshow("frame", image)
                if cv2.waitKey(1) & 0xFF == ord("q"):
                    return DoraStatus.STOP
            elif id == "keyboard_buffer":
                self.buffer = value[0].as_py()
            elif "message" in id:
                self.submitted += [
                    {
                        "role": id,
                        "content": value[0].as_py(),
                    }
                ]

        return DoraStatus.CONTINUE