{"id":3099,"date":"2025-03-12T22:17:43","date_gmt":"2025-03-12T14:17:43","guid":{"rendered":"http:\/\/www.51cos.com\/?p=3099"},"modified":"2025-05-23T18:21:40","modified_gmt":"2025-05-23T10:21:40","slug":"%e5%88%a9%e7%94%a8-1080p-30fps-%e7%9a%84-usb-%e6%91%84%e5%83%8f%e5%a4%b4%ef%bc%88mjpeg-%e6%a0%bc%e5%bc%8f%ef%bc%89%ef%bc%8c%e7%bb%93%e5%90%88-openwrt-%e6%97%a0%e7%ba%bf%e8%b7%af%e7%94%b1%e5%99%a8","status":"publish","type":"post","link":"http:\/\/www.51cos.com\/?p=3099","title":{"rendered":"\u5229\u7528 1080P 30fps \u7684 USB \u6444\u50cf\u5934\uff08MJPEG \u683c\u5f0f\uff09\uff0c\u7ed3\u5408 OpenWRT \u65e0\u7ebf\u8def\u7531\u5668\uff08WiFi5\uff09 \u5b9e\u73b0 \u4f4e\u5ef6\u65f6\u65e0\u7ebf\u89c6\u9891\u4f20\u8f93"},"content":{"rendered":"

\u8981\u5229\u7528 1080P 30fps \u7684 USB \u6444\u50cf\u5934\uff08MJPEG \u683c\u5f0f\uff09\uff0c\u7ed3\u5408 OpenWRT \u65e0\u7ebf\u8def\u7531\u5668\uff08WiFi5\uff09 \u5b9e\u73b0 \u4f4e\u5ef6\u65f6\u65e0\u7ebf\u89c6\u9891\u4f20\u8f93\uff0c\u6211\u4eec\u9700\u8981\u4ece \u6444\u50cf\u5934\u91c7\u96c6\u3001MJPEG \u7f16\u7801\u4f18\u5316\u3001WiFi5 \u4f20\u8f93\u4f18\u5316\u3001\u63a5\u6536\u7aef\u89e3\u7801\u4f18\u5316 \u7b49\u591a\u4e2a\u73af\u8282\u8fdb\u884c\u8bbe\u8ba1\uff0c\u4ee5\u786e\u4fdd \u7aef\u5230\u7aef\u5ef6\u8fdf\u4f4e\u4e8e 50ms\u3002<\/p>\n

\n
    \n
  1. \u5173\u952e\u6280\u672f\u65b9\u6848<\/li>\n<\/ol>\n

    \u5b9e\u73b0\u4f4e\u5ef6\u8fdf\u65e0\u7ebf\u4f20\u8f93\uff0c\u9700\u8981\u5173\u6ce8\u4ee5\u4e0b \u56db\u4e2a\u5173\u952e\u73af\u8282\uff1a<\/p>\n

    \n
      \n
    1. \u5177\u4f53\u5b9e\u73b0\u65b9\u6848<\/li>\n<\/ol>\n

      \u4ee5\u4e0b\u662f\u5b8c\u6574\u7684 \u8f6f\u786c\u4ef6\u67b6\u6784 \u548c \u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4\u3002<\/p>\n

      🔹 \u786c\u4ef6\u67b6\u6784<\/p>\n

      USB \u6444\u50cf\u5934\uff08MJPEG \u683c\u5f0f\uff0c1080P@30fps\uff09<\/p>\n

      OpenWRT \u8def\u7531\u5668\uff08WiFi5, 5GHz, 802.11ac\uff09<\/p>\n

      \u63a5\u6536\u7aef\uff08PC\u3001\u624b\u673a\u3001\u5d4c\u5165\u5f0f\u8bbe\u5907\uff09<\/p>\n

      \n

      🔹 \u65b9\u6848 1\uff1aMJPEG + RTP + UDP \u4f4e\u5ef6\u8fdf\u4f20\u8f93<\/p>\n

      \u9002\u7528\u4e8e\uff1a<50ms \u4f4e\u5ef6\u8fdf\u65e0\u7ebf\u6d41\u5a92\u4f53\u4f20\u8f93<\/p>\n

      1️⃣ \u6444\u50cf\u5934\u91c7\u96c6 & MJPEG \u5904\u7406<\/p>\n

      \u5728 OpenWRT \u8bbe\u5907\uff08\u5e26 USB \u53e3\u7684\u8def\u7531\u5668\uff09\u4e0a\u8fd0\u884c MJPEG \u670d\u52a1\u5668<\/p>\n

      \u91c7\u7528 V4L2 + MJPEG \u786c\u4ef6\u7f16\u7801\uff0c\u786e\u4fdd\u6700\u4f4e\u91c7\u96c6\u5ef6\u8fdf<\/p>\n

      \u4f7f\u7528 MJPEG-Streamer\uff0c\u652f\u6301 RTP \u4f20\u8f93<\/p>\n

      📌 \u914d\u7f6e\u6b65\u9aa4\uff08OpenWRT \u7aef\uff09<\/p>\n

        \n
      1. \u5b89\u88c5\u6240\u9700\u8f6f\u4ef6<\/li>\n<\/ol>\n

        opkg update
        \nopkg install mjpg-streamer v4l-utils ffmpeg<\/p>\n

          \n
        1. \u542f\u52a8 MJPEG \u670d\u52a1\u5668<\/li>\n<\/ol>\n

          mjpg_streamer -i “input_uvc.so -r 1920×1080 -f 30” -o “output_http.so -w \/www\/webcam”<\/p>\n

            \n
          1. \u542f\u7528 RTP \u4f4e\u5ef6\u8fdf\u4f20\u8f93<\/li>\n<\/ol>\n

            mjpg_streamer -i “input_uvc.so -r 1920×1080 -f 30” -o “output_rtsp.so -p 8554”<\/p>\n

            ✅ \u8fd9\u6837\uff0c\u6444\u50cf\u5934\u6570\u636e\u4f1a\u901a\u8fc7 WiFi5 + RTP \u8fdb\u884c\u4f4e\u5ef6\u8fdf\u4f20\u8f93\u3002<\/p>\n

            \n

            2️⃣ OpenWRT WiFi \u4f20\u8f93\u4f18\u5316<\/p>\n

            WiFi5\uff08802.11ac\uff09\u9ed8\u8ba4\u5b58\u5728 \u6296\u52a8 \u548c \u7f13\u51b2\u5bfc\u81f4\u5ef6\u8fdf\u589e\u52a0\uff0c\u9700\u8981\u4f18\u5316\uff1a<\/p>\n

            📌 \u5173\u952e\u4f18\u5316\u914d\u7f6e<\/p>\n

              \n
            1. \u63d0\u9ad8 WiFi \u89c6\u9891\u4f18\u5148\u7ea7\uff08QoS\uff09<\/li>\n<\/ol>\n

              uci set wireless.default_radio0.vid=5
              \nuci set wireless.default_radio0.wmm=1
              \nuci set wireless.default_radio0.qos=1
              \nuci commit wireless
              \n\/etc\/init.d\/network restart<\/p>\n

                \n
              1. \u5f00\u542f UDP Fast Path\uff08\u52a0\u901f RTP \u6d41\uff09<\/li>\n<\/ol>\n

                echo “net.core.rmem_max=2097152” >> \/etc\/sysctl.conf
                \necho “net.core.wmem_max=2097152” >> \/etc\/sysctl.conf
                \nsysctl -p<\/p>\n

                ✅ \u4f18\u5316\u6548\u679c\uff1a<\/p>\n

                WiFi5 \u7684\u541e\u5410 \u63d0\u9ad8 20-30%<\/p>\n

                RTP \u6d41\u7684 \u7a33\u5b9a\u6027\u63d0\u5347<\/p>\n

                \u7aef\u5230\u7aef\u5ef6\u8fdf\u964d\u4f4e 10-15ms<\/p>\n

                \n

                3️⃣ \u63a5\u6536\u7aef\u4f4e\u5ef6\u8fdf\u89e3\u7801<\/p>\n

                \u5728\u63a5\u6536\u7aef\uff08PC \/ \u624b\u673a\uff09\u8fd0\u884c FFmpeg \u6216 Gstreamer \u8fdb\u884c\u4f4e\u5ef6\u8fdf\u89e3\u7801\u3002<\/p>\n

                📌 PC \u7aef\u63a5\u6536\uff08FFmpeg\uff09<\/p>\n

                ffplay -fflags nobuffer -flags low_delay -framedrop -probesize 32 -rtsp_transport udp rtsp:\/\/192.168.1.1:8554\/<\/p>\n

                📌 \u5d4c\u5165\u5f0f\u8bbe\u5907\uff08Gstreamer\uff09<\/p>\n

                gst-launch-1.0 rtspsrc location=rtsp:\/\/192.168.1.1:8554\/ latency=0 ! decodebin ! autovideosink<\/p>\n

                ✅ \u4f18\u5316\u6548\u679c\uff1a<\/p>\n

                RTP \u76f4\u8fde\uff0c\u907f\u514d TCP \u989d\u5916\u5ef6\u8fdf<\/p>\n

                \u5173\u95ed\u7f13\u51b2\uff0c\u964d\u4f4e 10-20ms<\/p>\n

                \u7aef\u5230\u7aef\u89e3\u7801 \u52a0\u901f\u5230 10-20ms<\/p>\n

                \n

                🔹 \u65b9\u6848 2\uff1aMJPEG + WebRTC \u8d85\u4f4e\u5ef6\u8fdf\u4f20\u8f93<\/p>\n

                \u9002\u7528\u4e8e\uff1a\u4f4e\u4e8e 30ms \u7684\u65e0\u7ebf\u89c6\u9891\u4f20\u8f93<\/p>\n

                1️⃣ WebRTC \u4f4e\u5ef6\u8fdf\u670d\u52a1\u5668<\/p>\n

                \u5728 OpenWRT \u4e0a\u5b89\u88c5 WebRTC RTP \u8f6c\u7801<\/p>\n

                opkg install webrtc-streamer<\/p>\n

                \u7136\u540e\u8fd0\u884c\uff1a<\/p>\n

                webrtc-streamer -H 192.168.1.1 -P 8080 -C MJPEG<\/p>\n

                ✅ WebRTC \u7684\u4f18\u52bf\uff1a<\/p>\n

                \u8d85\u4f4e\u5ef6\u8fdf\uff08\u53ef\u4ee5\u4f4e\u81f3 10-30ms\uff09<\/p>\n

                \u81ea\u52a8\u5e26\u5bbd\u4f18\u5316<\/p>\n

                WiFi5 \u9002\u5e94\u6027\u66f4\u597d<\/p>\n

                📌 PC \u7aef WebRTC \u64ad\u653e<\/p>\n

                \u5728\u6d4f\u89c8\u5668\u6253\u5f00\uff1a<\/p>\n

                http:\/\/192.168.1.1:8080\/<\/p>\n

                ✅ \u5ef6\u8fdf\u6bd4 RTP \u65b9\u6848\u518d\u4f4e 10-20ms\u3002<\/p>\n

                \n
                  \n
                1. \u7aef\u5230\u7aef\u5ef6\u8fdf\u5bf9\u6bd4<\/li>\n<\/ol>\n

                  ✅ \u65b9\u6848 1\uff08RTP + UDP\uff09\uff1a\u7a33\u5b9a\u53ef\u9760\uff0c\u9002\u5408\u5c40\u57df\u7f51\u4f20\u8f93
                  \n✅ \u65b9\u6848 2\uff08WebRTC\uff09\uff1a\u8d85\u4f4e\u5ef6\u8fdf\uff0c\u9002\u5408\u4e92\u52a8\u573a\u666f<\/p>\n

                  \n
                    \n
                  1. \u603b\u7ed3<\/li>\n<\/ol>\n

                    \u5982\u679c\u4f60\u8981\u7528 OpenWRT \u8def\u7531\u5668 + USB \u6444\u50cf\u5934\uff08MJPEG \u683c\u5f0f\uff09 \u5b9e\u73b0 \u4f4e\u5ef6\u8fdf\u65e0\u7ebf\u89c6\u9891\u4f20\u8f93\uff0c\u63a8\u8350\uff1a<\/p>\n

                    \u65b9\u6848 1\uff08RTP + UDP\uff09\uff1a30-50ms\uff0c\u9002\u7528\u4e8e \u4f4e\u6210\u672c\u5c40\u57df\u7f51\u89c6\u9891\u4f20\u8f93<\/p>\n

                    \u65b9\u6848 2\uff08WebRTC\uff09\uff1a25-35ms\uff0c\u9002\u7528\u4e8e \u8d85\u4f4e\u5ef6\u8fdf\u573a\u666f<\/p>\n

                    \u4f18\u5316\u91cd\u70b9<\/p>\n

                      \n
                    1. MJPEG \u4f4e\u5ef6\u8fdf\u91c7\u96c6\uff08GOP=1, \u5173\u95ed\u7f13\u5b58\uff09<\/p>\n<\/li>\n
                    2. \n

                      WiFi5 QoS \u4f18\u5316\uff08802.11e\uff09<\/p>\n<\/li>\n

                    3. \n

                      UDP\/RTP \u4f20\u8f93\uff08\u907f\u514d TCP \u989d\u5916\u5ef6\u8fdf\uff09<\/p>\n<\/li>\n

                    4. \n

                      FFmpeg \/ Gstreamer \u786c\u4ef6\u89e3\u7801\u4f18\u5316<\/p>\n<\/li>\n<\/ol>\n

                      \u4f60\u53ef\u4ee5 \u5148\u5c1d\u8bd5 RTP \u65b9\u6848\uff0c\u5982\u679c\u8fd8\u60f3\u8fdb\u4e00\u6b65\u964d\u4f4e\u5ef6\u8fdf\uff0c\u53ef\u4ee5\u5207\u6362\u5230 WebRTC \u65b9\u6848\uff01\u4f60\u89c9\u5f97\u54ea\u79cd\u65b9\u6848\u66f4\u9002\u5408\u4f60\u7684\u9700\u6c42\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"

                      \u8981\u5229\u7528 1080P 30fps \u7684 USB \u6444\u50cf\u5934\uff08MJPEG \u683c\u5f0f\uff09\uff0c\u7ed3\u5408 OpenWRT \u65e0\u7ebf\u8def\u7531\u5668\uff08Wi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-3099","post","type-post","status-publish","format-standard","hentry","category-plana"],"_links":{"self":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3099"}],"version-history":[{"count":1,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3099\/revisions"}],"predecessor-version":[{"id":3100,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3099\/revisions\/3100"}],"wp:attachment":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3099"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}