{"id":988940,"date":"2024-12-27T08:06:55","date_gmt":"2024-12-27T00:06:55","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/988940.html"},"modified":"2024-12-27T08:06:58","modified_gmt":"2024-12-27T00:06:58","slug":"python%e5%a6%82%e4%bd%95%e6%89%b9%e9%87%8f%e5%a4%84%e7%90%86%e8%a7%86%e9%a2%91","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/988940.html","title":{"rendered":"python\u5982\u4f55\u6279\u91cf\u5904\u7406\u89c6\u9891"},"content":{"rendered":"

\"python\u5982\u4f55\u6279\u91cf\u5904\u7406\u89c6\u9891\"<\/p>\n

\n

search("python\u5982\u4f55\u6279\u91cf\u5904\u7406\u89c6\u9891")<\/p>\n<\/p>\n<\/blockquote>\n

Python\u6279\u91cf\u5904\u7406\u89c6\u9891\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528moviepy<\/code>\u5e93\u3001\u8c03\u7528ffmpeg<\/code>\u5de5\u5177\u3001\u7ed3\u5408OpenCV<\/code>\u5e93\u3001\u5229\u7528pytesseract<\/code>\u8fdb\u884c\u5b57\u5e55\u63d0\u53d6\u4e0e\u7ffb\u8bd1<\/strong>\u3002\u5176\u4e2d\uff0cmoviepy<\/code>\u5e93\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u7528\u4e8e\u89c6\u9891\u526a\u8f91\u3001\u6dfb\u52a0\u7279\u6548\u7b49\u64cd\u4f5c<\/strong>\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528moviepy<\/code>\u5e93\u8fdb\u884c\u6279\u91cf\u89c6\u9891\u5904\u7406\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5moviepy<\/code>\u5e93<\/h2>\n<\/p>\n

\u5728\u5f00\u59cb\u5904\u7406\u89c6\u9891\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u5df2\u5b89\u88c5moviepy<\/code>\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

pip install moviepy<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6b64\u5916\uff0cmoviepy<\/code>\u4f9d\u8d56\u4e8effmpeg<\/code>\uff0c\u8bf7\u786e\u4fdd\u7cfb\u7edf\u4e2d\u5df2\u5b89\u88c5ffmpeg<\/code>\u3002\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4eceFFmpeg\u5b98\u7f51<\/a>\u4e0b\u8f7d\u5e76\u914d\u7f6e\u73af\u5883\u53d8\u91cf\uff1b\u5728macOS\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528brew install ffmpeg<\/code>\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u6279\u91cf\u5904\u7406\u89c6\u9891\u7684\u57fa\u672c\u6d41\u7a0b<\/h2>\n<\/p>\n
    \n
  1. \n
    \u5bfc\u5165\u5fc5\u8981\u7684\u5e93<\/strong>\uff1a<\/p>\n<\/p>\n
    from moviepy.editor import VideoFileClip, concatenate_videoclips<\/p>\n
    import os<\/p>\n
    <\/code><\/pre>\n<\/p>\n<\/li>\n
  2. \n
    \u5b9a\u4e49\u5904\u7406\u51fd\u6570<\/strong>\uff1a\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u7528\u4e8e\u5bf9\u5355\u4e2a\u89c6\u9891\u6587\u4ef6\u8fdb\u884c\u5904\u7406\uff0c\u4f8b\u5982\u526a\u8f91\u3001\u6dfb\u52a0\u7279\u6548\u7b49\u3002<\/p>\n<\/p>\n
    def process_video(input_path, output_path):<\/p>\n
        # \u52a0\u8f7d\u89c6\u9891<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        # \u793a\u4f8b\uff1a\u526a\u8f91\u89c6\u9891\u7684\u524d10\u79d2<\/p>\n
        processed_clip = clip.subclip(0, 10)<\/p>\n
        # \u4fdd\u5b58\u5904\u7406\u540e\u7684\u89c6\u9891<\/p>\n
        processed_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n<\/li>\n
  3. \n
    \u6279\u91cf\u5904\u7406\u6587\u4ef6<\/strong>\uff1a\u904d\u5386\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u89c6\u9891\u6587\u4ef6\uff0c\u8c03\u7528\u5904\u7406\u51fd\u6570\u8fdb\u884c\u6279\u91cf\u5904\u7406\u3002<\/p>\n<\/p>\n
    input_directory = 'path_to_input_videos'<\/p>\n
    output_directory = 'path_to_output_videos'<\/p>\n
    for filename in os.listdir(input_directory):<\/p>\n
        if filename.endswith('.mp4'):  # \u6839\u636e\u9700\u8981\u4fee\u6539\u6587\u4ef6\u6269\u5c55\u540d<\/p>\n
            input_path = os.path.join(input_directory, filename)<\/p>\n
            output_path = os.path.join(output_directory, 'processed_' + filename)<\/p>\n
            process_video(input_path, output_path)<\/p>\n
    <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ol>\n
    \u4e09\u3001\u5e38\u89c1\u7684\u89c6\u9891\u5904\u7406\u64cd\u4f5c<\/h2>\n<\/p>\n
    1. \u53bb\u9664\u89c6\u9891\u7684\u5f00\u5934\u548c\u7ed3\u5c3e<\/h3>\n<\/p>\n
    \u4f7f\u7528subclip()<\/code>\u51fd\u6570\u53ef\u4ee5\u88c1\u526a\u89c6\u9891\u7684\u6307\u5b9a\u65f6\u95f4\u6bb5\u3002\u4f8b\u5982\uff0c\u53bb\u9664\u89c6\u9891\u7684\u524d\u540e30\u79d2\uff1a<\/p>\n<\/p>\n
    def trim_video(input_path, output_path, start_time, end_time):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        trimmed_clip = clip.subclip(start_time, end_time)<\/p>\n
        trimmed_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    trim_video('input.mp4', 'output.mp4', 30, clip.duration - 30)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2. \u88c1\u526a\u89c6\u9891\u7684\u6307\u5b9a\u533a\u57df<\/h3>\n<\/p>\n
    \u4f7f\u7528crop()<\/code>\u51fd\u6570\u53ef\u4ee5\u88c1\u526a\u89c6\u9891\u7684\u6307\u5b9a\u533a\u57df\u3002\u4f8b\u5982\uff0c\u88c1\u526a\u89c6\u9891\u7684\u5de6\u4e0a\u89d2\u548c\u53f3\u4e0b\u89d2\u5750\u6807\uff1a<\/p>\n<\/p>\n
    from moviepy.video.fx.all import crop<\/p>\n
    def crop_video(input_path, output_path, x1, y1, x2, y2):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        cropped_clip = crop(clip, x1=x1, y1=y1, x2=x2, y2=y2)<\/p>\n
        cropped_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    crop_video('input.mp4', 'output.mp4', 100, 100, 500, 500)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    3. \u6dfb\u52a0\u6ee4\u955c\u6548\u679c<\/h3>\n<\/p>\n
    \u4f7f\u7528fx<\/code>\u6a21\u5757\u53ef\u4ee5\u4e3a\u89c6\u9891\u6dfb\u52a0\u6ee4\u955c\u6548\u679c\u3002\u4f8b\u5982\uff0c\u4fee\u6539\u89c6\u9891\u7684\u989c\u8272\u9971\u548c\u5ea6\uff1a<\/p>\n<\/p>\n
    from moviepy.video.fx.all import colorx<\/p>\n
    def add_filter(input_path, output_path, factor):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        filtered_clip = clip.fx(colorx, factor)<\/p>\n
        filtered_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    add_filter('input.mp4', 'output.mp4', 0.5)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    4. \u6dfb\u52a0\u955c\u50cf\u6548\u679c<\/h3>\n<\/p>\n
    \u4f7f\u7528mirror_x()<\/code>\u6216mirror_y()<\/code>\u51fd\u6570\u53ef\u4ee5\u4e3a\u89c6\u9891\u6dfb\u52a0\u6c34\u5e73\u6216\u5782\u76f4\u955c\u50cf\u6548\u679c\uff1a<\/p>\n<\/p>\n
    from moviepy.video.fx.all import mirror_x<\/p>\n
    def add_mirror_effect(input_path, output_path):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        mirrored_clip = clip.fx(mirror_x)<\/p>\n
        mirrored_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    add_mirror_effect('input.mp4', 'output.mp4')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    5. \u62bd\u53d6\u89c6\u9891\u5e27<\/h3>\n<\/p>\n
    \u4f7f\u7528iter_frames()<\/code>\u51fd\u6570\u53ef\u4ee5\u8fed\u4ee3\u83b7\u53d6\u89c6\u9891\u7684\u6bcf\u4e00\u5e27\uff0c\u5e76\u4fdd\u5b58\u4e3a\u56fe\u50cf\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
    def extract_frames(input_path, output_directory):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        for i, frame in enumerate(clip.iter_frames()):<\/p>\n
            frame_image = Image.fromarray(frame)<\/p>\n
            frame_image.save(os.path.join(output_directory, f'frame_{i}.png'))<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    extract_frames('input.mp4', 'frames_output_directory')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    6. \u6dfb\u52a0\u7279\u6548<\/h3>\n<\/p>\n
    moviepy<\/code>\u63d0\u4f9b\u4e86\u591a\u79cd\u7279\u6548\u51fd\u6570\uff0c\u53ef\u4ee5\u7ec4\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u6dfb\u52a0\u6c34\u5e73\u955c\u50cf\u548c\u53cd\u8272\u7279\u6548\uff1a<\/p>\n<\/p>\n
    from moviepy.video.fx.all import mirror_x, invert_colors<\/p>\n
    def add_effects(input_path, output_path):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        effect_clip = clip.fx(mirror_x).fx(invert_colors)<\/p>\n
        effect_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    add_effects('input.mp4', 'output.mp4')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    7. \u6539\u53d8\u89c6\u9891\u64ad\u653e\u901f\u5ea6<\/h3>\n<\/p>\n
    \u4f7f\u7528speedx()<\/code>\u51fd\u6570\u53ef\u4ee5\u6539\u53d8\u89c6\u9891\u7684\u64ad\u653e\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u52a0\u901f\u4e24\u500d\uff1a<\/p>\n<\/p>\n
    from moviepy.video.fx.all import speedx<\/p>\n
    def change_speed(input_path, output_path, factor):<\/p>\n
        clip = VideoFileClip(input_path)<\/p>\n
        speed_clip = clip.fx(speedx, factor)<\/p>\n
        speed_clip.write_videofile(output_path, codec='libx264')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    change_speed('input.mp4', 'output.mp4', 2)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    8. \u5b57\u5e55\u63d0\u53d6\u4e0e\u7ffb\u8bd1<\/h3>\n<\/p>\n
    \u4f7f\u7528pytesseract<\/code>\u5e93\u53ef\u4ee5\u63d0\u53d6\u89c6\u9891\u4e2d\u7684\u5b57\u5e55\uff0c\u7136\u540e\u4f7f\u7528\u7ffb\u8bd1\u5e93\uff08\u4f8b\u5982googletrans<\/code>\uff09\u5c06\u5176\u7ffb\u8bd1\u4e3a\u82f1\u6587\uff1a<\/p>\n<\/p>\n
    import pytesseract<\/p>\n
    from googletrans import Translator<\/p>\n
    from PIL import Image<\/p>\n
    def translate_subtitle(image_path):<\/p>\n
        subtitle = pytesseract.image_to_string(Image.open(image_path))<\/p>\n
        translator = Translator()<\/p>\n
        translated_subtitle = translator.translate(subtitle, src='auto', dest='en').text<\/p>\n
        return translated_subtitle<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8c03\u7528\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    translated_text = translate_subtitle('subtitle_image.png')<\/p>\n
    print(translated_text)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u6ce8\u610f\u4e8b\u9879<\/h2>\n<\/p>\n
      \n
    • \u8d44\u6e90\u91ca\u653e<\/strong>\uff1a\u5728\u5904\u7406\u5927\u91cf\u89c6\u9891\u65f6\uff0c\u6ce8\u610f\u53ca\u65f6\u91ca\u653e\u8d44\u6e90\uff0c\u907f\u514d\u5185\u5b58\u6cc4\u6f0f<\/li>\n<\/ul>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
       \u5982\u4f55\u4f7f\u7528Python\u5904\u7406\u591a\u4e2a\u89c6\u9891\u6587\u4ef6\uff1f<\/strong>
      \u4f7f\u7528Python\u5904\u7406\u591a\u4e2a\u89c6\u9891\u6587\u4ef6\u53ef\u4ee5\u901a\u8fc7\u7ed3\u5408\u4f7f\u7528OpenCV\u3001MoviePy\u7b49\u5e93\u6765\u5b9e\u73b0\u3002\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u76f8\u5173\u5e93\uff0c\u4f8b\u5982\u901a\u8fc7pip install opencv-python moviepy<\/code>\u547d\u4ee4\u3002\u63a5\u7740\uff0c\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u811a\u672c\uff0c\u904d\u5386\u6307\u5b9a\u6587\u4ef6\u5939\u4e2d\u7684\u6240\u6709\u89c6\u9891\u6587\u4ef6\uff0c\u4f7f\u7528\u9009\u5b9a\u7684\u5904\u7406\u51fd\u6570\uff08\u5982\u526a\u5207\u3001\u8f6c\u6362\u683c\u5f0f\u6216\u6dfb\u52a0\u7279\u6548\uff09\u9010\u4e2a\u5904\u7406\u89c6\u9891\u3002\u8fd9\u6837\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u5904\u7406\u6548\u7387\u3002<\/p>\n
      \u54ea\u4e9bPython\u5e93\u9002\u5408\u8fdb\u884c\u89c6\u9891\u5904\u7406\uff1f<\/strong>
      Python\u4e2d\u6709\u591a\u4e2a\u5e93\u9002\u5408\u8fdb\u884c\u89c6\u9891\u5904\u7406\u3002OpenCV\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u9002\u5408\u8fdb\u884c\u89c6\u9891\u8bfb\u53d6\u3001\u5904\u7406\u548c\u5199\u5165\u3002MoviePy\u5219\u63d0\u4f9b\u4e86\u66f4\u9ad8\u5c42\u6b21\u7684API\uff0c\u9002\u5408\u4e8e\u526a\u8f91\u3001\u5408\u6210\u548c\u751f\u6210\u89c6\u9891\u3002\u6b64\u5916\uff0cFFmpeg\u4e5f\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u901a\u8fc7Python\u63a5\u53e3\u8c03\u7528\uff0c\u8fdb\u884c\u683c\u5f0f\u8f6c\u6362\u548c\u7f16\u7801\u7b49\u64cd\u4f5c\u3002<\/p>\n
      \u5982\u4f55\u4f18\u5316Python\u89c6\u9891\u5904\u7406\u7684\u6027\u80fd\uff1f<\/strong>
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