\u4e00\u3001\u5c06\u56fe\u7247\u8f6c\u5316\u6210\u89c6\u9891<\/strong><\/div>\n
\u901a\u8fc7python\u7684opencv\u5e93\u5c31\u53ef\u4ee5\u628a\u56fe\u7247\u8f6c\u6210\u89c6\u9891\uff0c\u8981\u6ce8\u610f\u7684\u662f\u628a\u5e27\u7387\u8bbe\u7f6e\u621030\uff0c\u65b9\u4fbf\u540e\u7eed\u548c\u5176\u4ed6\u89c6\u9891\u62fc\u63a5\uff0c\u56e0\u4e3a\u5e27\u7387\u4e0d\u540c\u4f1a\u5bfc\u81f4\u62fc\u63a5\u51fa\u9519\u3002<\/p>\n
\r\nimport cv2,os \r\nimport matplotlib.pyplot as plt \r\nfrom PIL import Image \r\ncanshu=0.5 #\u8bbe\u7f6e\u89c6\u9891\u5206\u8fa8\u7387\u53c2\u6570 \r\nimg = Image.open('\u4e2d\u56fd\u7968\u636e\u53d1\u5c55\u62a5\u544a.jpg') \r\nimg.save('ddd.jpg') \r\nimg = cv2.imread('ddd.jpg') #\u8bbe\u7f6e\u4e00\u4e2a\u56fe\u7247\u7684\u5927\u5c0f\u4f5c\u4e3a\u6307\u5b9a\u5927\u5c0f \r\nimgimgInfo = img.shape \r\nsize = (int(imgInfo[1]*canshu),int(imgInfo[0]*canshu)) \r\nfourcc = cv2.VideoWriter_fourcc('M','J','P','G') \r\nvideoWrite = cv2.VideoWriter('3.avi',fourcc,30,size,True) #\u53c2\u6570\u4f9d\u6b21\u662f\uff1a\u6587\u4ef6\u8def\u5f84\uff1b\u6307\u5b9a\u7f16\u7801\u5668\uff1b\u5e27\u7387\uff1b\u753b\u9762\u5927\u5c0f\uff1b\u662f\u5f69\u8272\u8fd8\u662f\u9ed1\u8272 \r\nfile_list = os.listdir('.\/1\/\/') #\u83b7\u53d6\u6587\u4ef6\u5939\u91cc\u7684\u5217\u8868 \r\nfor i in range(0,len(file_list)): \r\n fileName ='.\/1\/\/'+file_list[i] \r\n img = Image.open(fileName) \r\n #\u6839\u636e\u6837\u672c\u56fe\u7247\u8c03\u6574\u56fe\u7247\u5927\u5c0f \r\n (x00,y00) = img.size \r\n x_s = x00*canshu \r\n y_s = int(y00 * x_s \/ x00) \r\n imgimg = img.resize(size,Image.ANTIALIAS) \r\n img.save('ddd.jpg') \r\n img = cv2.imread('ddd.jpg') #\u8bfb\u53d6\u56fe\u50cf \r\n #\u56e0\u4e3a\u662f\u5355\u5f20\u56fe\u7247\u7684\u65f6\u95f4\u592a\u77ed\uff0c\u6bcf\u4e00\u5f20\u56fe\u7247\u63d2\u516520\u5e27 \r\n for j in range(0,20): \r\n videoWrite.write(img) \r\nvideoWrite.release() \r\n<\/pre>\n
\u4f46\u662f\u5982\u679c\u8981\u5c06\u56fe\u7247\u505a\u4e00\u4e9b\u7b80\u5355\u7684\u52a8\u753b\u6548\u679c\uff0c\u4f8b\u5982\u505a\u4e00\u4e2a\u753b\u9762\u9010\u6e10\u7f29\u5c0f\u7684\u52a8\u753b\uff0c\u90a3\u5c31\u8981\u501f\u52a9EV\u526a\u8f91\uff0c\u8c03\u6574\u56fe\u7247\u7684\u5927\u5c0f\uff0c\u52a0\u4e0a\u767d\u80cc\u666f\uff0c\u7136\u540e\u5bfc\u51fa\u89c6\u9891\u3002<\/p>\n
$\"\"$ <\/p>\n
\u6ce8\u610f\u5bfc\u51fa\u7684\u65f6\u5019\u8981\u8bbe\u7f6e\u5e27\u7387\uff0c\u5982\u679c\u65f6\u95f4\u8fc7\u957f\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u8bbe\u7f6e\u5e27\u7387\u4f4e\u4e00\u70b9\uff0c\u7136\u540e\u7528python\u7a0b\u5e8f\u628a\u64ad\u653e\u901f\u5ea6\u63d0\u5347\uff0c\u5e27\u7387\u4e5f\u4f1a\u76f8\u5e94\u63d0\u9ad8\u3002<\/p>\n
\r\nimport cv2 \r\nvdop = \"4.mp4\"#\u8f93\u5165\u89c6\u9891\u8def\u5f84 \r\ncap = cv2.VideoCapture(vdop) \r\nfps = cap.get(cv2.CAP_PROP_FPS) #\u83b7\u53d6\u8f93\u5165\u89c6\u9891\u7684\u5e27\u7387 \r\nsize = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), \r\n int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))#\u83b7\u53d6\u8f93\u5165\u89c6\u9891\u7684\u5927\u5c0f \r\nfourcc = cv2.VideoWriter_fourcc('I', '4', '2', '0') #These are the FOURCCs to compressed formats \r\nout_path = \"8.mp4\" #\u8f93\u51fa2\u500d\u901f\u7684avi\u683c\u5f0f\u7684\u89c6\u9891\u8def\u5f84 \r\noutput_viedo = cv2.VideoWriter() \r\nfps = (29.5\/26.8)*fps #2\u500d\u901f\u5904\u7406 \r\n#isColor\uff1a\u5982\u679c\u8be5\u4f4d\u503c\u4e3aTure\uff0c\u89e3\u7801\u5668\u4f1a\u8fdb\u884c\u989c\u8272\u6846\u67b6\u7684\u89e3\u7801\uff0c\u5426\u5219\u4f1a\u4f7f\u7528\u7070\u5ea6\u8fdb\u884c\u989c\u8272\u67b6\u6784 \r\noutput_viedo.open(out_path , fourcc, fps, size, isColor=True) \r\nrval = True \r\nwhile rval: \r\n rval, img = cap.read()#\u9010\u5e27\u8bfb\u53d6\u539f\u89c6\u9891 \r\n output_viedo.write(img)#\u5199\u5165\u89c6\u9891\u5e27 \r\noutput_viedo.release() \r\ncap.release() \r\n<\/pre>\n
\u7528opencv\u5904\u7406\u8fc7\u7684\u89c6\u9891\u4f1a\u5931\u53bb\u97f3\u9891\u3002\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528ffmpeg\u6765\u8c03\u901f\uff0c\u53ef\u4ee5\u4fdd\u7559\u58f0\u97f3\uff0c\u7279\u522b\u9002\u5408\u5fae\u8c03\u3002\u8981\u4f7f\u7528FFmpeg\uff0c\u5b89\u88c5\u5b8c\u4e4b\u540e\uff0c\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf\uff0c\u5c31\u80fd\u5728python\u8c03\u7528FFmpeg\u3002<\/p>\n
\r\nimport os \r\nos.system('ffmpeg -i 4.mp4 -vf \"setpts=2*PTS\" 8.mp4') #\u56fe\u50cf\u4e24\u500d\u6162\u901f \r\n<\/pre>\n
\u4e8c\u3001\u5c06\u89c6\u9891\u6dfb\u52a0\u97f3\u9891\u4f5c\u4e3a\u80cc\u666f\u97f3\u4e50 <\/strong><\/div>\n
\r\nimport subprocess,os \r\nmp4_f = '.\/2.avi' \r\nmp3_f = '.\/\u80cc\u666f\u97f3.mp3' \r\nn_mp4_n = 'new' + mp4_f.split('\/')[-1] \r\nn_mp4_f = mp4_f.replace(mp4_f.split('\/')[-1],n_mp4_n) \r\ncom = f'D:\\\\ffmpeg\\\\bin\\\\ffmpeg.exe -i \"{mp3_f}\" -i \"{mp4_f}\" ' \\ f' -acodec copy -vcodec copy \"{n_mp4_f}\"' \r\nprint(com) \r\nos.system(com) \r\n<\/pre>\n
\u4e09\u3001\u5408\u5e76\u89c6\u9891<\/strong><\/div>\n
1.\u526a\u5207\u89c6\u9891<\/p>\n
\r\nimport os \r\nimport subprocess,cv2 \r\ncom = f'ffmpeg -i 5.mp4 -c copy -t 00:00:20.0 output.mp4' # \u622a\u53d6\u524d20\u79d2 -ss 00:00:00.0 \u8d77\u59cb\u4f4d\u7f6e \r\nos.system(com) \r\n<\/pre>\n
2.\u8981\u5c06\u4e0d\u540c\u7684\u89c6\u9891\u5408\u5e76\uff0c\u9996\u5148\u8981\u786e\u4fdd\u5e27\u7387\u548c\u753b\u5e03\u5927\u5c0f\u4e00\u6837\uff0c\u8fd9\u6837\u624d\u80fd\u786e\u4fdd\u5408\u5e76\u8d77\u6765\u4e0d\u51fa\u9519\u3002\u4e0b\u9762\u4ee3\u7801\u662f\u8c03\u6574\u753b\u5e03\u3002\u5c06\u5f62\u72b6\u4e0d\u540c\u7684\u89c6\u9891\u753b\u9762\uff0c\u8981\u6309\u7167\u539f\u89c6\u9891\u7684\u6bd4\u4f8b\uff0c\u8c03\u6574\u5230\u4e00\u4e2a\u6846\u91cc\u9762\u53bb\u3002<\/p>\n
\r\nimport subprocess,os \r\nimport cv2 \r\n#\u83b7\u53d6\u6837\u672c\u7684\u753b\u5e03\u5927\u5c0f \r\nvideo_path = \"2\\\\1.mp4\" \r\ncap = cv2.VideoCapture(video_path) \r\nframe_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))# \u83b7\u53d6\u89c6\u9891\u9ad8\u5ea6 \r\nframe_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))# \u83b7\u53d6\u89c6\u9891\u5bbd\u5ea6 \r\nfps = cap.get(cv2.CAP_PROP_FPS) #\u89c6\u9891\u5e73\u5747\u5e27\u7387 \r\nh0=frame_height \r\nw0=frame_width \r\nfile_list = os.listdir('3\\\\') #\u83b7\u53d6\u6587\u4ef6\u5939\u91cc\u7684\u6240\u6709\u6587\u4ef6\u5217\u8868 \r\nfor i in file_list: \r\n #\u83b7\u53d6\u5f53\u524d\u89c6\u9891\u7684 \r\n video_path = '3\\\\'+i \r\n cap = cv2.VideoCapture(video_path) \r\n frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) \r\n # \u83b7\u53d6\u89c6\u9891\u9ad8\u5ea6\u3001\u5bbd\u5ea6 \r\n frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) \r\n h=frame_height \r\n w=frame_width \r\n if h\/w>h0\/w0: \r\n strn=f'ffmpeg -i %s -vf \"scale=(%s*%s\/%s):%s,pad=%s:%s:(%s-(%s*%s\/%s))\/2:0:black\" %s'% (video_path,w,h0,h,h0, w0,h0,w0,w,h0,h,i) \r\n else: \r\n strn=f'ffmpeg -i %s -vf \"scale=%s:%s*%s\/%s,pad=%s:%s:0:((%s-(%s*%s\/%s))\/2):black\" %s'% (video_path,w0,w0,h,w, w0,h0, h0,w0,h,w,i) \r\n #\u672c\u56fe\u7f29\u653e\u540e=\u5bbd\uff1a\u9ad8\uff0c\u4f4d\u7f6e=\u603b\u5bbd\uff1a\u603b\u9ad8\uff1a\u6c34\u5e73\u65b9\u5411\u653e\u7f6e\u7684\u4f4d\u7f6e\uff1a\u5782\u76f4\u65b9\u5411\u653e\u7f6e\u7684\u4f4d\u7f6e \r\n os.system(strn) \r\n<\/pre>\n
3.\u5c06\u89c6\u9891\u5408\u5e76<\/p>\n
\u5c06\u89c6\u9891\u5148\u8f6c\u5316\u6210ts\u683c\u5f0f\uff0c\u7136\u540e\u518d\u5408\u5e76\uff0c\u6210\u529f\u7387\u66f4\u9ad8\u3002<\/p>\n
\r\nimport os \r\nlista='kaishiwizhi' \r\n#\u5148\u83b7\u53d6\u8fd9\u4e9bMP4\u6587\u4ef6\uff0c\u8f6c\u6362\u6210ts\u683c\u5f0f \r\nfor each in os.listdir(): \r\n if each[-3:] in ['mp4','avi'] : \r\n os.system('ffmpeg.exe -i %s -c copy -vbsf h264_mp4toannexb %s.ts' % (each, each[:-4])) \r\n listalista=lista +('|%s.ts'%(each[:-4])) \r\nlistalista=lista.replace('kaishiwizhi|','') \r\nimport subprocess,cv2 \r\n#subprocess.call(cmd, shell=True) \r\ncom = f'ffmpeg -i \"concat:%s\" -c copy 333333.avi'%lista \r\n#com = f'mencoder -forceidx -of lavf -oac copy -ovc copy -o output.avinew 2.avi new 2.avi' \r\nprint(com) \r\nos.system(com) \r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u901a\u8fc7python\u7684opencv\u5e93\u5c31\u53ef\u4ee5\u628a\u56fe\u7247\u8f6c\u6210\u89c6\u9891\uff0c\u8981\u6ce8\u610f\u7684\u662f\u628a\u5e27\u7387\u8bbe\u7f6e\u621030\uff0c\u65b9\u4fbf\u540e\u7eed\u548c\u5176\u4ed6\u89c6\u9891\u62fc\u63a5\uff0c\u56e0\u4e3a […]<\/p>\n","protected":false},"author":1479,"featured_media":222863,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-222859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1479"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=222859"}],"version-history":[{"count":2,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222859\/revisions"}],"predecessor-version":[{"id":222864,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222859\/revisions\/222864"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/222863"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=222859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=222859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=222859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}