{"id":983597,"date":"2024-12-27T07:20:48","date_gmt":"2024-12-26T23:20:48","guid":{"rendered":""},"modified":"2024-12-27T07:20:50","modified_gmt":"2024-12-26T23:20:50","slug":"python%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e5%90%88%e5%b9%b6%e8%a7%86%e9%a2%91","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/983597.html","title":{"rendered":"python\u5982\u4f55\u5b9e\u73b0\u5408\u5e76\u89c6\u9891"},"content":{"rendered":"

\"python\u5982\u4f55\u5b9e\u73b0\u5408\u5e76\u89c6\u9891\"<\/p>\n

Python\u5b9e\u73b0\u5408\u5e76\u89c6\u9891\u7684\u4e3b\u8981\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u7535\u5f71\u7f16\u8f91\u5e93\u5982MoviePy\u3001FFmpeg\u5e93\u3001\u4ee5\u53caOpenCV\u5e93\u3002MoviePy\u548cFFmpeg\u7531\u4e8e\u5176\u5f3a\u5927\u7684\u529f\u80fd\u548c\u7b80\u5355\u7684\u4f7f\u7528\u65b9\u6cd5\u800c\u5907\u53d7\u63a8\u8350\u3002MoviePy\u901a\u8fc7\u5176\u9ad8\u5c42\u6b21\u7684API\u63a5\u53e3\uff0c\u63d0\u4f9b\u4e86\u5bf9\u89c6\u9891\u526a\u8f91\u3001\u5408\u5e76\u7684\u4fbf\u6377\u64cd\u4f5c\uff0c\u800cFFmpeg\u4f5c\u4e3a\u4e00\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u901a\u8fc7Python\u7684subprocess\u6a21\u5757\u8c03\u7528\uff0c\u6765\u5b9e\u73b0\u89c6\u9891\u7684\u9ad8\u6548\u5408\u5e76\u3002<\/strong><\/p>\n<\/p>\n

\u901a\u8fc7MoviePy\u8fdb\u884c\u89c6\u9891\u5408\u5e76\u662f\u76f8\u5bf9\u7b80\u5355\u800c\u76f4\u89c2\u7684\u65b9\u6cd5\u3002MoviePy\u662f\u4e00\u4e2aPython\u5e93\uff0c\u4e13\u95e8\u7528\u4e8e\u89c6\u9891\u7f16\u8f91\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u65b9\u5f0f\u6765\u8fdb\u884c\u89c6\u9891\u64cd\u4f5c\uff0c\u5982\u526a\u8f91\u3001\u62fc\u63a5\u3001\u5408\u5e76\u7b49\u3002\u4f7f\u7528MoviePy\u8fdb\u884c\u89c6\u9891\u5408\u5e76\u7684\u4e3b\u8981\u6b65\u9aa4\u5305\u62ec\uff1a\u52a0\u8f7d\u89c6\u9891\u6587\u4ef6\u3001\u5c06\u89c6\u9891\u526a\u8f91\u7ec4\u5408\u5728\u4e00\u8d77\u3001\u8f93\u51fa\u5408\u5e76\u540e\u7684\u6587\u4ef6\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528MoviePy\u5b9e\u73b0\u89c6\u9891\u5408\u5e76\u3002<\/p>\n<\/p>\n

\u4e00\u3001MOVIEPY\u5e93\u7684\u4f7f\u7528<\/h3>\n<\/p>\n

1. \u5b89\u88c5MoviePy<\/h4>\n<\/p>\n

\u8981\u4f7f\u7528MoviePy\u5e93\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u5b83\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u6765\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

pip install moviepy<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u52a0\u8f7d\u89c6\u9891\u6587\u4ef6<\/h4>\n<\/p>\n
MoviePy\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u63a5\u53e3\u6765\u52a0\u8f7d\u89c6\u9891\u6587\u4ef6\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528VideoFileClip<\/code>\u7c7b\u6765\u52a0\u8f7d\u89c6\u9891\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
from moviepy.editor import VideoFileClip<\/p>\n
clip1 = VideoFileClip("video1.mp4")<\/p>\n
clip2 = VideoFileClip("video2.mp4")<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u5408\u5e76\u89c6\u9891\u526a\u8f91<\/h4>\n<\/p>\n
MoviePy\u63d0\u4f9b\u4e86\u4e00\u4e2aconcatenate_videoclips<\/code>\u51fd\u6570\u6765\u5408\u5e76\u591a\u4e2a\u89c6\u9891\u526a\u8f91\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u89c6\u9891\u526a\u8f91\u5217\u8868\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5408\u5e76\u540e\u7684\u89c6\u9891\u526a\u8f91\uff1a<\/p>\n<\/p>\n
from moviepy.editor import concatenate_videoclips<\/p>\n
final_clip = concatenate_videoclips([clip1, clip2])<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u8f93\u51fa\u5408\u5e76\u540e\u7684\u89c6\u9891<\/h4>\n<\/p>\n
\u6700\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528write_videofile<\/code>\u65b9\u6cd5\u6765\u8f93\u51fa\u5408\u5e76\u540e\u7684\u89c6\u9891\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
final_clip.write_videofile("merged_video.mp4")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528FFMPEG\u5e93<\/h3>\n<\/p>\n
1. \u5b89\u88c5FFmpeg<\/h4>\n<\/p>\n
FFmpeg\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u591a\u5a92\u4f53\u5904\u7406\u5de5\u5177\uff0c\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u884c\u8fdb\u884c\u89c6\u9891\u5408\u5e76\u3002\u9996\u5148\uff0c\u9700\u8981\u786e\u4fdd\u5df2\u5b89\u88c5FFmpeg\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5\uff1a<\/p>\n<\/p>\n
# For Linux<\/p>\n
sudo apt-get install ffmpeg<\/p>\n
For MacOS<\/strong><\/h2>\n
brew install ffmpeg<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u4f7f\u7528Python\u4e2d\u7684subprocess\u6a21\u5757<\/h4>\n<\/p>\n
Python\u7684subprocess\u6a21\u5757\u53ef\u4ee5\u7528\u4e8e\u8c03\u7528FFmpeg\u547d\u4ee4\u6765\u5408\u5e76\u89c6\u9891\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import subprocess<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u5408\u5e76\u89c6\u9891\u5217\u8868\u6587\u4ef6<\/strong><\/h2>\n
with open('filelist.txt', 'w') as f:<\/p>\n
    f.write("file 'video1.mp4'\\n")<\/p>\n
    f.write("file 'video2.mp4'\\n")<\/p>\n
\u8c03\u7528FFmpeg\u5408\u5e76\u89c6\u9891<\/strong><\/h2>\n
subprocess.run(['ffmpeg', '-f', 'concat', '-SAFe<\/a>', '0', '-i', 'filelist.txt', '-c', 'copy', 'merged_video.mp4'])<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u89e3\u91caFFmpeg\u547d\u4ee4<\/h4>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c-f concat<\/code>\u8868\u793a\u4f7f\u7528concat\u534f\u8bae\u6765\u5408\u5e76\u89c6\u9891\uff0c-safe 0<\/code>\u7528\u4e8e\u5141\u8bb8FFmpeg\u5904\u7406\u76f8\u5bf9\u8def\u5f84\uff0c-c copy<\/code>\u8868\u793a\u89c6\u9891\u6d41\u7684\u590d\u5236\u800c\u4e0d\u91cd\u65b0\u7f16\u7801\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528OPENCV\u5e93<\/h3>\n<\/p>\n
OpenCV\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u89c6\u9891\u5904\u7406\u3002\u4e0d\u8fc7\uff0c\u4f7f\u7528OpenCV\u8fdb\u884c\u89c6\u9891\u5408\u5e76\u53ef\u80fd\u6bd4\u4f7f\u7528MoviePy\u6216FFmpeg\u8981\u590d\u6742\u4e00\u4e9b\uff0c\u56e0\u4e3aOpenCV\u4e3b\u8981\u7528\u4e8e\u9010\u5e27\u5904\u7406\u3002<\/p>\n<\/p>\n
1. \u5b89\u88c5OpenCV<\/h4>\n<\/p>\n
\u540c\u6837\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7pip\u5b89\u88c5OpenCV\u5e93\uff1a<\/p>\n<\/p>\n
pip install opencv-python<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u89c6\u9891\u5408\u5e76\u793a\u4f8b<\/h4>\n<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528OpenCV\u9010\u5e27\u8bfb\u53d6\u548c\u5199\u5165\u89c6\u9891\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
\u521b\u5efaVideoCapture\u5bf9\u8c61<\/strong><\/h2>\n
cap1 = cv2.VideoCapture('video1.mp4')<\/p>\n
cap2 = cv2.VideoCapture('video2.mp4')<\/p>\n
\u83b7\u53d6\u89c6\u9891\u5c5e\u6027<\/strong><\/h2>\n
fps = cap1.get(cv2.CAP_PROP_FPS)<\/p>\n
width = int(cap1.get(cv2.CAP_PROP_FRAME_WIDTH))<\/p>\n
height = int(cap1.get(cv2.CAP_PROP_FRAME_HEIGHT))<\/p>\n
\u521b\u5efaVideoWriter\u5bf9\u8c61<\/strong><\/h2>\n
fourcc = cv2.VideoWriter_fourcc(*'mp4v')<\/p>\n
out = cv2.VideoWriter('merged_video.mp4', fourcc, fps, (width, height))<\/p>\n
\u9010\u5e27\u5199\u5165\u89c6\u9891<\/strong><\/h2>\n
def write_frames(cap):<\/p>\n
    while cap.isOpened():<\/p>\n
        ret, frame = cap.read()<\/p>\n
        if not ret:<\/p>\n
            break<\/p>\n
        out.write(frame)<\/p>\n
write_frames(cap1)<\/p>\n
write_frames(cap2)<\/p>\n
\u91ca\u653e\u8d44\u6e90<\/strong><\/h2>\n
cap1.release()<\/p>\n
cap2.release()<\/p>\n
out.release()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u6ce8\u610f\u4e8b\u9879\u53ca\u4f18\u5316\u5efa\u8bae<\/h3>\n<\/p>\n
    \n
  1. \n
    \u89c6\u9891\u683c\u5f0f\u548c\u7f16\u89e3\u7801\u5668<\/strong>\uff1a\u5728\u5408\u5e76\u89c6\u9891\u65f6\uff0c\u786e\u4fdd\u6240\u6709\u89c6\u9891\u6587\u4ef6\u5177\u6709\u76f8\u540c\u7684\u683c\u5f0f\u548c\u7f16\u89e3\u7801\u5668\uff0c\u4ee5\u907f\u514d\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u89c6\u9891\u5206\u8fa8\u7387\u548c\u5e27\u7387<\/strong>\uff1a\u5408\u5e76\u7684\u89c6\u9891\u5e94\u5177\u6709\u76f8\u540c\u7684\u5206\u8fa8\u7387\u548c\u5e27\u7387\uff0c\u5426\u5219\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u989d\u5916\u7684\u5904\u7406\u6b65\u9aa4\u6765\u8c03\u6574\u8fd9\u4e9b\u53c2\u6570\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    \u6027\u80fd\u4f18\u5316<\/strong>\uff1a\u5728\u5904\u7406\u5927\u6587\u4ef6\u6216\u957f\u89c6\u9891\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u7f16\u89e3\u7801\u5668\u6216\u8c03\u6574\u7f13\u51b2\u533a\u5927\u5c0f\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<\/p>\n<\/li>\n
  4. \n
    \u5f02\u5e38\u5904\u7406<\/strong>\uff1a\u786e\u4fdd\u5728\u4ee3\u7801\u4e2d\u52a0\u5165\u9002\u5f53\u7684\u5f02\u5e38\u5904\u7406\uff0c\u4ee5\u4fbf\u5728\u5904\u7406\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u9519\u8bef\u65f6\u80fd\u591f\u53ca\u65f6\u54cd\u5e94\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u7efc\u4e0a\u6240\u8ff0\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u89c6\u9891\u5408\u5e76\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4f60\u7684\u5177\u4f53\u9700\u6c42\u548c\u9879\u76ee\u8981\u6c42\u3002MoviePy\u9002\u7528\u4e8e\u7b80\u5355\u7684\u64cd\u4f5c\u548c\u5feb\u901f\u7684\u5f00\u53d1\uff0cFFmpeg\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u591a\u5a92\u4f53\u4efb\u52a1\uff0c\u800cOpenCV\u63d0\u4f9b\u4e86\u66f4\u5e95\u5c42\u7684\u63a7\u5236\u548c\u5904\u7406\u80fd\u529b\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u91cd\u8981\u7684\u662f\u7406\u89e3\u6bcf\u79cd\u5de5\u5177\u7684\u4f18\u7f3a\u70b9\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u9700\u6c42\u505a\u51fa\u6700\u5408\u9002\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     1. \u5982\u4f55\u4f7f\u7528Python\u5408\u5e76\u591a\u4e2a\u89c6\u9891\u6587\u4ef6\uff1f<\/strong>
    \u8981\u5408\u5e76\u591a\u4e2a\u89c6\u9891\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528moviepy<\/code>\u5e93\u3002\u9996\u5148\u786e\u4fdd\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86\u5b83\u3002\u53ef\u4ee5\u901a\u8fc7pip install moviepy<\/code>\u8fdb\u884c\u5b89\u88c5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
    from moviepy.editor import VideoFileClip, concatenate_videoclips\n\n# \u521b\u5efa\u89c6\u9891\u526a\u8f91\u5bf9\u8c61\u5217\u8868\nclips = [VideoFileClip("video1.mp4"), VideoFileClip("video2.mp4")]\n\n# \u5408\u5e76\u89c6\u9891\nfinal_clip = concatenate_videoclips(clips)\n\n# \u8f93\u51fa\u5408\u5e76\u540e\u7684\u89c6\u9891\nfinal_clip.write_videofile("merged_video.mp4")\n<\/code><\/pre>\n
    \u8fd9\u4e2a\u4ee3\u7801\u7247\u6bb5\u4f1a\u5c06video1.mp4<\/code>\u548cvideo2.mp4<\/code>\u5408\u5e76\u4e3amerged_video.mp4<\/code>\u3002<\/p>\n
    2. \u5408\u5e76\u89c6\u9891\u65f6\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u683c\u5f0f\u95ee\u9898\uff1f<\/strong>
    \u5728\u5408\u5e76\u89c6\u9891\u65f6\uff0c\u786e\u4fdd\u6240\u6709\u89c6\u9891\u6587\u4ef6\u7684\u683c\u5f0f\u548c\u7f16\u7801\u4e00\u81f4\u3002\u4e0d\u540c\u7684\u683c\u5f0f\u53ef\u80fd\u5bfc\u81f4\u5408\u5e76\u540e\u7684\u89c6\u9891\u51fa\u73b0\u64ad\u653e\u95ee\u9898\u6216\u8d28\u91cf\u4e0b\u964d\u3002\u5e38\u89c1\u7684\u89c6\u9891\u683c\u5f0f\u6709MP4\u3001AVI\u548cMOV\uff0c\u5efa\u8bae\u4f7f\u7528\u76f8\u540c\u7684\u7f16\u7801\u548c\u5206\u8fa8\u7387\uff0c\u4ee5\u83b7\u5f97\u6700\u4f73\u6548\u679c\u3002<\/p>\n
    3. Python\u5408\u5e76\u89c6\u9891\u7684\u6027\u80fd\u5982\u4f55\uff1f<\/strong>
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