少帅下飞机！（python版）

import cv2

import time

import os

import pickle

from blessed import Terminal



# 初始化 blessed 的终端对象

term = Terminal()



# 更复杂的字符集，用于增强灰度映射效果

ASCII_CHARS = "$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`'. "



# 将每个像素映射为ASCII字符

def pixel_to_ascii(pixel_value):

    ascii_index = pixel_value * len(ASCII_CHARS) // 256

    return ASCII_CHARS[min(ascii_index, len(ASCII_CHARS) - 1)]



# 将图像转换为ASCII艺术字符，并保留颜色信息

def image_to_ascii_colored(frame, width=120):

    height, orig_width, _ = frame.shape

    aspect_ratio = height / orig_width

    new_width = width

    new_height = int(aspect_ratio * new_width * 0.43)



    resized_frame = cv2.resize(frame, (new_width, new_height), interpolation=cv2.INTER_AREA)

    gray_frame = cv2.cvtColor(resized_frame, cv2.COLOR_BGR2GRAY)



    # 使用列表存储所有行

    ascii_image = []



    for y in range(new_height):

        line = []

        last_color = None



        for x in range(new_width):

            gray = gray_frame[y, x]

            ascii_char = pixel_to_ascii(gray)



            b, g, r = resized_frame[y, x]

            current_color = (r, g, b)



            if current_color != last_color:

                line.append(term.color_rgb(r, g, b))

                last_color = current_color



            line.append(ascii_char)

            line.append(term.normal) # 重置颜色



        ascii_image.append(''.join(line))



    return "\n".join(ascii_image)



# 将视频的每一帧预计算并缓存到本地

def cache_ascii_frames(video_path, cache_path, width=120):

    cap = cv2.VideoCapture(video_path)



    if not cap.isOpened():

        print("无法打开视频文件")

        return



    total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))

    ascii_frames = []



    print("开始预计算ASCII帧...")



    for i in range(total_frames):

        ret, frame = cap.read()



        if not ret:

            break



        ascii_frame = image_to_ascii_colored(frame, width)

        ascii_frames.append(ascii_frame)



        if (i + 1) % 100 == 0 or (i + 1) == total_frames:

            print(f"预计算帧: {i + 1}/{total_frames}")



    cap.release()



    with open(cache_path, 'wb') as f:

        pickle.dump(ascii_frames, f, protocol=pickle.HIGHEST_PROTOCOL)



    print(f"预计算完成，缓存已保存至 {cache_path}")



# 从缓存中加载ASCII帧

def load_ascii_frames(cache_path):

    with open(cache_path, 'rb') as f:

        return pickle.load(f)



# 播放缓存好的ASCII视频

def play_cached_ascii_video(ascii_frames, fps):

    frame_duration = 1 / fps



    # 隐藏光标并清空屏幕

    print(term.hide_cursor() + term.clear())



    try:

        for ascii_frame in ascii_frames:

            start_time = time.time()



            # 使用 blessed 提供的快速刷新功能

            with term.location(0, 0):

                print(ascii_frame)



            # 控制帧率

            elapsed = time.time() - start_time

            sleep_time = frame_duration - elapsed



            if sleep_time > 0:

                time.sleep(sleep_time)



    except KeyboardInterrupt:

        pass

    finally:

        # 重置颜色并显示光标

        print(term.normal + term.show_cursor())



# 检查是否有缓存文件，如果没有则进行预计算

def play_ascii_video_terminal_with_cache(video_path, cache_path, width=120):

    # 获取视频帧率

    cap = cv2.VideoCapture(video_path)

    fps = cap.get(cv2.CAP_PROP_FPS)



    if fps == 0:

        fps = 60 # 默认帧率



    cap.release()



    # 检查缓存文件是否存在

    if not os.path.exists(cache_path):

        print("未找到缓存，开始预计算...")

        cache_ascii_frames(video_path, cache_path, width)



    # 加载缓存

    ascii_frames = load_ascii_frames(cache_path)

    print("缓存加载完成，开始播放...")

    play_cached_ascii_video(ascii_frames, fps)



# 示例使用

if __name__ == "__main__":

    video_path = '下载.mp4' # 视频路径

    cache_path = 'ascii_cache.pkl' # 缓存文件路径

    width = 120 # 根据终端大小调整宽度



    print(term.clear())

    print("开始播放ASCII视频... 按 Ctrl+C 退出")

    play_ascii_video_terminal_with_cache(video_path, cache_path, width)

原作者：你舍不得呢（来自抖音） 

开源：Afool4u/少帅下飞机 – 码云 – 开源中国 (gitee.com)

作者：爱编程的鱼