{"id":3247,"date":"2015-07-29T14:22:09","date_gmt":"2015-07-29T12:22:09","guid":{"rendered":"https:\/\/vasil.ludost.net\/blog\/?p=3247"},"modified":"2015-07-29T14:22:09","modified_gmt":"2015-07-29T12:22:09","slug":"2015-07-29-ffmpeg-%d0%ba%d0%b0%d1%82%d0%be-%d1%81%d0%be%d1%84%d1%82%d1%83%d0%b5%d1%80%d0%b5%d0%bd-%d0%b2%d0%b8%d0%b4%d0%b5%d0%be-%d0%bc%d0%b8%d0%ba%d1%81%d0%b5%d1%80","status":"publish","type":"post","link":"https:\/\/vasil.ludost.net\/blog\/?p=3247","title":{"rendered":"2015-07-29 ffmpeg \u043a\u0430\u0442\u043e \u0441\u043e\u0444\u0442\u0443\u0435\u0440\u0435\u043d \u0432\u0438\u0434\u0435\u043e \u043c\u0438\u043a\u0441\u0435\u0440"},"content":{"rendered":"

\u041c\u043e\u0435\u0442\u043e \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0435 \u043a\u044a\u043c ffmpeg \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u043e\u043f\u0438\u0448\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u043e \u043a\u0430\u0442\u043e “love-hate relationship”. \u041f\u0438\u043f\u0430\u043b \u0441\u044a\u043c \u043f\u043e \u043a\u043e\u0434\u0430 \u043c\u0443, \u0433\u043b\u0435\u0434\u0430\u043b \u0441\u044a\u043c \u0445\u0438\u043b\u044f\u0434\u0438\u0442\u0435 security \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0438, \u043a\u043e\u0438\u0442\u043e \u0438\u0437\u043b\u0438\u0437\u0430\u0442 \u0432 \u043d\u0435\u0433\u043e, \u0434\u0435\u0431\u044a\u0433\u0432\u0430\u043b \u0441\u044a\u043c \u0432\u0441\u044f\u043a\u0430\u043a\u0432\u0438 \u043c\u0438\u0437\u0435\u0440\u043d\u0438 (\u0438 \u043c\u043d\u043e\u0433\u043e \u043c\u0438\u0437\u0435\u0440\u043d\u0438) \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0438 \u0441 \u043d\u0435\u0433\u043e, \u0438 \u0441\u044a\u043c \u0433\u043e \u043f\u043e\u043b\u0437\u0432\u0430\u043b \u0437\u0430 \u043a\u0430\u043a\u0432\u043e \u043b\u0438 \u043d\u0435.<\/p>\n

\u0414\u043d\u0435\u0441 \u043e\u0431\u0430\u0447\u0435 \u0443\u0441\u043f\u044f\u0445 \u0434\u0430 \u043d\u0430\u043f\u0440\u0430\u0432\u044f \u043d\u0435\u0449\u043e, \u043a\u043e\u0435\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u043e\u043a\u0430\u0436\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e \u0438 \u0437\u0430 \u043f\u043e-\u043d\u043e\u0440\u043c\u0430\u043b\u043d\u0438 \u0445\u043e\u0440\u0430. <\/p>\n

\u0410\u043a\u043e \u0447\u043e\u0432\u0435\u043a \u0441\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u0430 ffmpeg-\u0430 \u0441 –enable-libzmq \u0438 \u043d\u044f\u043a\u044a\u0434\u0435 \u0432\u044a\u0432 filtergraph-\u0430 \u0441\u043b\u043e\u0436\u0438 zmq, \u0442.\u0435. \u0434\u0430 \u0440\u0435\u0447\u0435\u043c \u043d\u0430\u043f\u0440\u0430\u0432\u0438 \u043d\u0435\u0449\u043e \u0442\u0430\u043a\u043e\u0432\u0430:<\/p>\n

\r\nffmpeg -re -i ~\/20140407ripetest.mp4 -re -i ~\/20140508pclapi-lecture.mp4 -i ~\/video\/transparent-eye.png \\\r\n\t-filter_complex '[0:v] split [0big][0smp]; [0smp] scale=w=iw\/4:h=ih\/4 [0sm];\r\n\t\t\t[1:v] split [1big][1smp]; [1smp] scale=w=iw\/4:h=ih\/4 [1sm];\r\n\t\t\t[0big][1big] overlay, zmq [big]; [0sm][1sm] overlay [sm];\r\n\t\t\t[big][sm]overlay=x=main_w-overlay_w-10:y=main_h-overlay_h-10 [outn];\r\n\t\t\t[outn][2:v] overlay=x=main_w-overlay_w-10:y=10 [out]; [out] split [outflv][outsdl]' \\\r\n\t-c:v libx264 -s 1280x720 -profile:v high -level 4.2 -preset ultrafast -g 60 -b:v 2000k -acodec aac \\\r\n\t-ar 44100 -ac 2 -bsf:a aac_adtstoasc -flags +global_header -strict -2 -threads 2  \\\r\n\t-f flv -map '[outflv]' rtmp:\/\/strm.ludost.net\/st\/test \\\r\n\t-f sdl -map '[outsdl]' \"SDL Output\"\r\n<\/pre>\n
\u0422\u043e\u0432\u0430 \u0432 \u043e\u0431\u0449\u0438 \u043b\u0438\u043d\u0438\u0438 \u0437\u043d\u0430\u0447\u0438 \u0441\u043b\u0435\u0434\u043d\u043e\u0442\u043e:
\n– \u0432\u0445\u043e\u0434 0 \u0441\u0435 \u0446\u0435\u043f\u0438 \u043d\u0430 \u0434\u0432\u0430, 0big \u0438 0smp, \u0432\u0445\u043e\u0434 1 \u043f\u043e \u0441\u044a\u0449\u0438\u044f \u043d\u0430\u0447\u0438\u043d;
\n– 0smp \u0438 1smp \u0441\u0435 scale-\u0432\u0430\u0442 \u043d\u0430 1\/4;
\n– \u041f\u0440\u0430\u0432\u0438 \u0441\u0435 \u0435\u0434\u0438\u043d overlay \u043e\u0442 0big \u0438 1big;
\n– \u041f\u0440\u0430\u0432\u0438 \u0441\u0435 \u0432\u0442\u043e\u0440\u0438 overlay \u043e\u0442 0sm \u0438 1sm;
\n– \u041e\u0442 \u043f\u044a\u0440\u0432\u0438\u044f \u0438 \u0432\u0442\u043e\u0440\u0438\u044f overlay \u0441\u0435 \u043f\u0440\u0430\u0432\u0438 \u0435\u0434\u0438\u043d \u0434\u0440\u0443\u0433 overlay, \u0442.\u0435. \u043a\u0430\u0442\u043e picture-in-picture;
\n– \u0412\/\u0443 \u0442\u043e\u0437\u0438 overlay \u0441\u0435 \u0441\u043b\u0430\u0433\u0430 png \u0441 \u0444\u0438\u043d\u0430\u043b\u043d\u0438\u044f overlay;
\n– \u0426\u044f\u043b\u043e\u0442\u043e \u0442\u043e\u0432\u0430 \u043d\u0435\u0449\u043e \u0441\u0435 encode-\u0432\u0430 \u0434\u043e h.264;
\n– \u041f\u0440\u0430\u0449\u0430 \u0441\u0435 \u043d\u0430 \u0435\u043a\u0440\u0430\u043d\u0430 \u0438 \u043d\u0430 \u043f\u043e rtmp \u0434\u043e \u043c\u043e\u044f \u0442\u0435\u0441\u0442\u043e\u0432 setup.<\/p>\n
\u0414\u043e \u0442\u0443\u043a – \u043d\u0438\u0449\u043e \u043e\u0441\u043e\u0431\u0435\u043d\u043e, \u0441\u0430\u043c\u043e \u0434\u0435\u0442\u043e \u0441\u0435 \u0432\u0438\u0436\u0434\u0430 \u0441\u0430\u043c\u043e \u0435\u0434\u043d\u043e\u0442\u043e \u0432\u0438\u0434\u0435\u043e. \u041e\u0411\u0410\u0427\u0415, \u0447\u0440\u0435\u0437 zeromq \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0447\u043e\u0432\u0435\u043a \u043c\u043e\u0436\u0435 \u0434\u0430 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0430 overlay-\u0438\u0442\u0435 \u0438 \u0434\u0430 \u043c\u0435\u0441\u0442\u0438 overlay-\u043d\u0430\u0442\u0438\u0442\u0435 \u043d\u0435\u0449\u0430, \u043a\u0430\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u043e\u0440\u0438 \u0434\u0430 \u0433\u0438 \u0438\u0437\u043a\u0430\u0440\u0432\u0430 \u043e\u0442 \u043a\u0430\u0440\u0442\u0438\u043d\u0438\u0430\u0442\u0430. \u0415\u0442\u043e \u0442\u0430\u043a\u0430 \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u0441\u043c\u0435\u043d\u044f \u0432\u0438\u0434\u0435\u043e\u0442\u043e \u0432 \u043d\u044f\u043a\u043e\u0439 \u043e\u0442 overlay-\u0438\u0442\u0435, \u043f\u0440\u0435\u0437 zmqshell.py (\u043e\u0442 tools\/ \u043d\u0430 ffmpeg-\u0430):<\/p>\n
\r\nlavfi> Parsed_overlay_4 y 900<\/b>\r\nSending command:[Parsed_overlay_4 y 900]\r\nReceived reply:[0 Success]\r\nlavfi> Parsed_overlay_4 y 0<\/b>\r\nSending command:[Parsed_overlay_4 y 0]\r\nReceived reply:[0 Success]\r\n<\/pre>\n
\u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044a\u0442 \u0435, \u0447\u0435 \u0432\u0441\u0438\u0447\u043a\u0438\u0442\u0435 \u0442\u0438\u044f \u0438\u043c\u0435\u043d\u0430 \u043d\u0430 \u0444\u0438\u043b\u0442\u0440\u0438 (Parsed_overlay_4 \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440) \u0441\u0435 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0430\u0442 \u0438 \u043d\u0435 \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u043a\u0440\u044a\u0449\u0430\u0432\u0430\u0442, \u0442\u0430 \u0447\u043e\u0432\u0435\u043a \u0442\u0440\u044f\u0431\u0432\u0430 \u0434\u0430 \u0441\u0438 \u0433\u0438 \u043d\u0430\u043b\u0443\u0447\u043a\u0430 \u043f\u044a\u0440\u0432\u0438\u044f \u043f\u044a\u0442. \u0427\u0443\u0434\u044f \u0441\u0435 \u0434\u0430\u043b\u0438 \u0431\u0438\u0445\u0430 \u043f\u0440\u0438\u0435\u043b\u0438 patch \u043f\u043e \u0432\u044a\u043f\u0440\u043e\u0441\u0430…<\/p>\n
\u041f\u0440\u0438\u043c\u0435\u0440\u043d\u0430\u0442\u0430 \u0440\u0430\u0431\u043e\u0442\u0430 \u043d\u0430 \u043d\u0435\u0449\u043e\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u0432\u0438\u0434\u0438 \u0442\u0443\u043a<\/a>, \u0442\u0435\u0441\u0442\u0432\u0430\u0445 \u0441 \u0434\u0432\u0435 \u043c\u043e\u0438 \u0432\u0438\u0434\u0435\u0430 \u0438 \u043b\u043e\u0433\u043e\u0442\u043e \u043d\u0430 \u0444\u0435\u0441\u0442\u0430.<\/p>\n","protected":false},"excerpt":{"rendered":"
\u041c\u043e\u0435\u0442\u043e \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0435 \u043a\u044a\u043c ffmpeg \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u043e\u043f\u0438\u0448\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u043e \u043a\u0430\u0442\u043e “love-hate relationship”. \u041f\u0438\u043f\u0430\u043b \u0441\u044a\u043c \u043f\u043e \u043a\u043e\u0434\u0430 \u043c\u0443, \u0433\u043b\u0435\u0434\u0430\u043b \u0441\u044a\u043c \u0445\u0438\u043b\u044f\u0434\u0438\u0442\u0435 security \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0438, \u043a\u043e\u0438\u0442\u043e \u0438\u0437\u043b\u0438\u0437\u0430\u0442 \u0432 \u043d\u0435\u0433\u043e, \u0434\u0435\u0431\u044a\u0433\u0432\u0430\u043b \u0441\u044a\u043c \u0432\u0441\u044f\u043a\u0430\u043a\u0432\u0438 \u043c\u0438\u0437\u0435\u0440\u043d\u0438 (\u0438 \u043c\u043d\u043e\u0433\u043e \u043c\u0438\u0437\u0435\u0440\u043d\u0438) \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0438 \u0441 \u043d\u0435\u0433\u043e, \u0438 \u0441\u044a\u043c \u0433\u043e \u043f\u043e\u043b\u0437\u0432\u0430\u043b \u0437\u0430 \u043a\u0430\u043a\u0432\u043e \u043b\u0438 \u043d\u0435. \u0414\u043d\u0435\u0441 \u043e\u0431\u0430\u0447\u0435 \u0443\u0441\u043f\u044f\u0445 \u0434\u0430 \u043d\u0430\u043f\u0440\u0430\u0432\u044f \u043d\u0435\u0449\u043e, \u043a\u043e\u0435\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u0430 \u0441\u0435 \u043e\u043a\u0430\u0436\u0435 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[16],"class_list":["post-3247","post","type-post","status-publish","format-standard","hentry","category-general","tag-16"],"_links":{"self":[{"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3247"}],"version-history":[{"count":0,"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3247\/revisions"}],"wp:attachment":[{"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vasil.ludost.net\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}