{"id":3164,"date":"2025-04-16T19:29:33","date_gmt":"2025-04-16T11:29:33","guid":{"rendered":"http:\/\/www.51cos.com\/?p=3164"},"modified":"2025-05-23T18:20:49","modified_gmt":"2025-05-23T10:20:49","slug":"%e5%ae%9e%e7%8e%b0%e6%94%af%e6%8c%81mipi%e6%91%84%e5%83%8f%e5%a4%b4%e8%be%93%e5%85%a5%ef%bc%8c%e9%80%9a%e8%bf%87h-264%e7%bc%96%e7%a0%81%ef%bc%8c%e5%b9%b6%e6%97%a0%e7%ba%bf%e4%bc%a0%e8%be%93%e5%88%b0","status":"publish","type":"post","link":"http:\/\/www.51cos.com\/?p=3164","title":{"rendered":"\u5b9e\u73b0\u652f\u6301MIPI\u6444\u50cf\u5934\u8f93\u5165\uff0c\u901a\u8fc7H.264\u7f16\u7801\uff0c\u5e76\u65e0\u7ebf\u4f20\u8f93\u5230\u624b\u673aAPP\uff0c\u7aef\u5230\u7aef\u5ef6\u65f6\u4f4e\u4e8e50ms"},"content":{"rendered":"

\u8981\u5b9e\u73b0\u652f\u6301MIPI\u6444\u50cf\u5934\u8f93\u5165\uff0c\u901a\u8fc7H.264\u7f16\u7801\uff0c\u5e76\u65e0\u7ebf\u4f20\u8f93\u5230\u624b\u673aAPP\uff0c\u7aef\u5230\u7aef\u5ef6\u65f6\u4f4e\u4e8e50ms<\/strong>\u662f\u4e2a\u6280\u672f\u6311\u6218\uff0c\u9700\u8981\u6574\u4f53\u4f18\u5316\u8bbe\u8ba1\u3002<\/p>\n

\u4e00\u3001\u5ef6\u65f6\u9ad8\u7684\u539f\u56e0\u5206\u6790<\/h3>\n

\u6444\u50cf\u5934\u901a\u8fc7\u65e0\u7ebf\u4f20\u8f93\u5230\u624b\u673aAPP\u663e\u793a\u7684\u5ef6\u65f6\u901a\u5e38\u51fa\u5728\u4ee5\u4e0b\u51e0\u4e2a\u73af\u8282\uff1a<\/p>\n

    \n
  1. \u56fe\u50cf\u91c7\u96c6\u5ef6\u65f6\uff08Sensor\u548cISP\uff09<\/strong>\n
      \n
    • \u6444\u50cf\u5934\u66dd\u5149\u65f6\u95f4<\/li>\n
    • Sensor\u8f93\u51fa\u5e27\u7387\u548c\u63a5\u53e3\u5ef6\u65f6\uff08\u5982MIPI CSI\u63a5\u53e3\u5ef6\u8fdf\uff09<\/li>\n
    • ISP\uff08\u56fe\u50cf\u4fe1\u53f7\u5904\u7406\uff09\u82af\u7247\u5185\u90e8\u7684\u5e27\u7f13\u5b58\u548c\u5904\u7406\u5ef6\u65f6<\/li>\n<\/ul>\n<\/li>\n
    • \u89c6\u9891\u538b\u7f29\u7f16\u7801\u5ef6\u65f6\uff08H.264\u7f16\u7801\uff09<\/strong>\n
        \n
      • \u7f16\u7801\u5668\u9700\u8981\u7f13\u5b58\u51e0\u5e27\u505a\u5e27\u95f4\u9884\u6d4b\uff08\u5982B\u5e27\uff0cP\u5e27\u7b49\uff09<\/li>\n
      • \u7f16\u7801\u7b97\u6cd5\u590d\u6742\u5ea6\u9ad8\uff0c\u5bfc\u81f4\u5904\u7406\u5ef6\u8fdf\u589e\u52a0<\/li>\n<\/ul>\n<\/li>\n
      • \u65e0\u7ebf\u4f20\u8f93\u5ef6\u65f6<\/strong>\n
          \n
        • \u65e0\u7ebf\u94fe\u8def\u534f\u8bae\u6808\uff08\u5982Wi-Fi\u3001BLE\u6216\u79c1\u6709\u534f\u8bae\uff09\u672c\u8eab\u7684\u7f13\u5b58\u673a\u5236\u548c\u91cd\u4f20\u673a\u5236<\/li>\n
        • \u4fe1\u9053\u62e5\u585e\u3001\u4fe1\u53f7\u8d28\u91cf\u4f4e\u5f15\u8d77\u91cd\u53d1\u548c\u8bef\u7801\u7387\u5347\u9ad8<\/li>\n
        • \u6570\u636e\u5c01\u5305\u7ec4\u5e27\u548c\u89e3\u5e27\u7684\u5ef6\u65f6<\/li>\n<\/ul>\n<\/li>\n
        • \u624b\u673a\u7aef\u63a5\u6536\u548c\u89e3\u7801\u5ef6\u65f6<\/strong>\n
            \n
          • APP\u7aef\u6570\u636e\u7f13\u5b58<\/li>\n
          • \u624b\u673a\u89e3\u7801\u5668\u8f6f\/\u786c\u4ef6\u5ef6\u8fdf<\/li>\n
          • APP\u7ed8\u5236\u5230\u5c4f\u5e55\u7684\u5ef6\u8fdf<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
            \n

            \u4e8c\u3001\u5b9e\u73b0\u7aef\u5230\u7aef50ms\u4ee5\u5185\u5ef6\u65f6\u7684\u4f18\u5316\u7b56\u7565<\/h3>\n

            \u8981\u5b9e\u73b050ms\u4ee5\u5185\u4f4e\u5ef6\u8fdf\uff0c\u9700\u8981\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u7ef4\u5ea6\u5165\u624b\uff1a<\/p>\n

            \n

            \uff08\u4e00\uff09\u82af\u7247\u7aef\uff08\u56fe\u50cf\u91c7\u96c6\u4e0e\u5904\u7406\uff09\u4f18\u5316\uff1a<\/h3>\n
              \n
            1. \u9009\u7528\u4f4e\u5ef6\u65f6MIPI CSI\u63a5\u53e3\u548cISP\u82af\u7247<\/strong>\n
                \n
              • \u5c3d\u53ef\u80fd\u4f7f\u7528\u9ad8\u5e27\u7387\u7684\u6444\u50cf\u5934\uff0c\u598260fps\u751a\u81f3120fps\u3002<\/li>\n
              • \u964d\u4f4eISP\u5185\u90e8pipeline\u957f\u5ea6\uff0c\u9009\u62e9pipeline\u77ed\u3001\u7f13\u5b58\u5c11\u7684\u82af\u7247\u65b9\u6848\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \u4f20\u611f\u5668\u66dd\u5149\u4f18\u5316<\/strong>\n
                  \n
                • \u63d0\u9ad8Sensor\u7075\u654f\u5ea6\uff0c\u51cf\u5c0f\u66dd\u5149\u65f6\u95f4\uff0c\u907f\u514d\u957f\u66dd\u5149\u589e\u52a0\u5ef6\u65f6\u3002<\/li>\n<\/ul>\n<\/li>\n
                • \u63a5\u53e3\u6570\u636e\u4f20\u8f93\u4f18\u5316<\/strong>\n
                    \n
                  • \u63d0\u9ad8MIPI\u63a5\u53e3\u6570\u636e\u901f\u7387\uff0c\u7f29\u77ed\u56fe\u50cf\u4eceSensor\u5230\u5904\u7406\u82af\u7247\u7684\u6570\u636e\u4f20\u8f93\u65f6\u5ef6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                    \n

                    \uff08\u4e8c\uff09\u89c6\u9891\u7f16\u7801\u4f18\u5316\uff08\u5173\u952e\u73af\u8282\uff09\uff1a<\/h3>\n
                      \n
                    1. \u51cf\u5c11\u5e27\u7f13\u5b58\uff0c\u4f7f\u7528\u4f4e\u5ef6\u8fdf\u6a21\u5f0f<\/strong>\n
                        \n
                      • \u4f7f\u7528Baseline Profile<\/strong>\uff0c\u4e0d\u4f7f\u7528B\u5e27\uff0c\u4ec5\u7528I\u5e27\u548cP\u5e27\u3002<\/li>\n
                      • \u5f3a\u5236\u6bcf\u4e2aI\u5e27\u95f4\u9694\u5c3d\u53ef\u80fd\u77ed\uff0c\u4f8b\u5982\u6bcf\u79d21~2\u4e2aI\u5e27\uff0c\u4fdd\u8bc1\u51fa\u73b0\u4e22\u5305\u65f6\u5feb\u901f\u6062\u590d\u3002<\/li>\n
                      • \u5c06\u7f16\u7801\u5668\u6a21\u5f0f\u8c03\u6574\u5230Ultra-low latency<\/strong>\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n
                      • \u8c03\u6574\u7f16\u7801\u53c2\u6570<\/strong>\n
                          \n
                        • CABAC\u6539\u4e3aCAVLC<\/strong>\uff1aCABAC\u538b\u7f29\u6548\u7387\u9ad8\u4f46\u5ef6\u8fdf\u66f4\u5927\uff0cCAVLC\u6a21\u5f0f\u9002\u5408\u4f4e\u5ef6\u8fdf\u573a\u666f\u3002<\/li>\n
                        • \u964d\u4f4e\u8fd0\u52a8\u641c\u7d22\u8303\u56f4\u548c\u53c2\u8003\u5e27\u6570\uff0c\u51cf\u5c11\u8ba1\u7b97\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n
                        • \u63d0\u5347\u7f16\u7801\u5668\u786c\u4ef6\u80fd\u529b<\/strong>\n
                            \n
                          • \u9009\u62e9\u4e13\u95e8\u652f\u6301\u4f4e\u5ef6\u8fdf\u7f16\u7801\u7684\u82af\u7247\uff08\u4f8b\u5982\u4e13\u7528\u786c\u4ef6\u7f16\u89e3\u7801\u6a21\u5757\uff0c\u5982FPGA\u6216SoC\u65b9\u6848\uff09\u3002<\/li>\n
                          • \u63d0\u9ad8\u7f16\u7801\u65f6\u949f\u9891\u7387\uff0c\u964d\u4f4e\u6bcf\u5e27\u5904\u7406\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                            \n

                            \uff08\u4e09\uff09\u65e0\u7ebf\u4f20\u8f93\u94fe\u8def\u4f18\u5316\uff08\u91cd\u8981\u74f6\u9888\uff09\uff1a<\/h3>\n
                              \n
                            1. \u65e0\u7ebf\u534f\u8bae\u9009\u62e9<\/strong>\n
                                \n
                              • \u9996\u9009Wi-Fi 5\/6\u6216\u79c1\u6709\u534f\u8bae<\/strong>\uff0cBLE\u7684\u5ef6\u8fdf\u901a\u5e38\u504f\u5927\u3002<\/li>\n
                              • \u91c7\u7528\u4e13\u95e8\u7684\u4f4e\u5ef6\u8fdf\u3001UDP\u4f20\u8f93\u534f\u8bae\uff08\u5982RTP\uff09\uff0c\u907f\u514dTCP\u5e26\u6765\u7684\u91cd\u4f20\u548cACK\u673a\u5236\u9020\u6210\u7684\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n
                              • \u964d\u4f4e\u65e0\u7ebf\u4f20\u8f93\u7684\u7f13\u5b58\u673a\u5236<\/strong>\n
                                  \n
                                • \u7f13\u51b2\u533a\uff08Buffer\uff09\u5c3d\u53ef\u80fd\u5c0f\uff0c\u6570\u636e\u5305\u5230\u5373\u53d1\u9001\uff0c\u4e0d\u8fdb\u884c\u5927\u5305\u62fc\u63a5\u3002<\/li>\n
                                • \u6bcf\u5e27\u538b\u7f29\u540e\u7acb\u5373\u5206\u5305\u53d1\u9001\uff0c\u907f\u514d\u7d2f\u79ef\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n
                                • \u4fe1\u9053\u4e0e\u7f51\u7edc\u4f18\u5316<\/strong>\n
                                    \n
                                  • \u589e\u5f3a\u65e0\u7ebf\u94fe\u8def\u8d28\u91cf\uff0c\u786e\u4fdd\u8f83\u4f4e\u8bef\u7801\u7387\uff08\u964d\u4f4e\u91cd\u4f20\u5ef6\u8fdf\uff09\u3002<\/li>\n
                                  • \u4f7f\u7528\u66f4\u5bbd\u7684\u4fe1\u9053\u5e26\u5bbd\uff0c\u907f\u514d\u62e5\u5835\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                                    \n

                                    \uff08\u56db\uff09APP\u7aef\u89e3\u7801\u4e0e\u663e\u793a\u4f18\u5316\uff1a<\/h3>\n
                                      \n
                                    1. \u786c\u89e3\u7801\u4f18\u5148<\/strong>\n
                                        \n
                                      • \u9009\u7528\u624b\u673a\u5185\u7f6e\u7684\u786c\u89e3\u7801\u5668\uff08\u5982MediaCodec\uff09\uff0c\u907f\u514d\u8f6f\u4ef6\u89e3\u7801\u3002<\/li>\n<\/ul>\n<\/li>\n
                                      • \u964d\u4f4eAPP\u7f13\u51b2<\/strong>\n
                                          \n
                                        • APP\u6536\u5230\u6570\u636e\u540e\u7acb\u5373\u9001\u5165\u89e3\u7801\uff0c\u4e0d\u8fdb\u884c\u8fc7\u591a\u7f13\u51b2\u3002<\/li>\n
                                        • \u89e3\u7801\u540e\u6570\u636e\u76f4\u63a5\u9001\u5165Surface\u6216TextureView\uff0c\u907f\u514d\u7ed8\u5236\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n
                                        • Surface\u5feb\u901f\u6e32\u67d3<\/strong>\n
                                            \n
                                          • Android\u7aef\u76f4\u63a5\u5229\u7528SurfaceTexture\u6216GLSurfaceView\u63d0\u5347\u6e32\u67d3\u6548\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                                            \n

                                            \u4e09\u3001\u53c2\u8003\u5b9e\u73b0\u8def\u5f84\uff1a<\/h3>\n

                                            \u4e00\u4e2a\u5178\u578b\u7684\u4f4e\u5ef6\u65f6\u7cfb\u7edf\u67b6\u6784\u4e3e\u4f8b\uff1a<\/p>\n

                                            Sensor(MIPI CSI) -> ISP\uff08\u4f4e\u5ef6\u8fdf\u5904\u7406\uff09 -> H.264 \u7f16\u7801\u82af\u7247\uff08\u4f4e\u5ef6\u8fdf\u6a21\u5f0f\uff0cBaseline Profile\uff0cCAVLC\uff0c\u5feb\u901f\u7f16\u7801\uff09\n-> UDP\u5c01\u5305\uff08RTP\u534f\u8bae\uff09 -> Wi-Fi 5\/6\u6216\u4e13\u7528\u65e0\u7ebf\u6a21\u5757\uff08\u4f4e\u5ef6\u8fdf\u53d1\u9001\uff09\n-> \u624b\u673a\u7aefWi-Fi\u63a5\u6536\uff08\u76f4\u63a5\u9001\u5165MediaCodec\u786c\u89e3\u7801\uff09 -> Surface\u5feb\u901f\u6e32\u67d3\n<\/code><\/pre>\n
                                            \n
                                            \u56db\u3001\u5efa\u8bae\u82af\u7247\u9009\u578b\u4e0e\u534f\u8bae\u53c2\u8003\uff1a<\/h3>\n\n\n\n\n\n\n\n\n\n
                                            \u73af\u8282<\/th>\n\u63a8\u8350\u65b9\u6848<\/th>\n<\/tr>\n<\/thead>\n
                                            ISP<\/td>\nFPGA\/\u4f4e\u5ef6\u8fdfASIC\u65b9\u6848\u3001\u652f\u6301CSI\/MIPI<\/td>\n<\/tr>\n
                                            H.264\u7f16\u7801<\/td>\n\u82af\u7247\u7ea7H.264\u786c\u7f16\u7801\u5668\uff0cXilinx FPGA Video Codec IP\uff0c\u6216\u9ad8\u901a\u3001Ambarella\u82af\u7247<\/td>\n<\/tr>\n
                                            \u65e0\u7ebf\u4f20\u8f93<\/td>\nWi-Fi 5\/6 \u6a21\u5757\uff08\u5982\u535a\u901a\u3001\u9ad8\u901a\uff09\uff0c\u79c1\u6709\u534f\u8bae\u5982nRF5xx\u7cfb\u5217\uff08\u9650\u4e8e\u6570\u636e\u91cf\u5c0f\u573a\u666f\uff09<\/td>\n<\/tr>\n
                                            \u534f\u8bae<\/td>\nRTP\/UDP\uff0c\u907f\u514dTCP\uff0c\u907f\u514dBLE<\/td>\n<\/tr>\n
                                            \u624b\u673a\u7aef<\/td>\nMediaCodec\u786c\u89e3\u7801\uff0cOpenGL ES\u76f4\u63a5\u6e32\u67d3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                                            \n
                                            \u4e94\u300150ms\u5ef6\u8fdf\u65f6\u95f4\u9884\u7b97\u5efa\u8bae\uff1a<\/h3>\n\n\n\n\n\n\n\n\n\n
                                            \u73af\u8282<\/th>\n\u5ef6\u8fdf\u76ee\u6807\uff08ms\uff09<\/th>\n<\/tr>\n<\/thead>\n
                                            \u56fe\u50cf\u4f20\u611f\u5668+ISP<\/td>\n\u22645ms<\/td>\n<\/tr>\n
                                            H.264\u7f16\u7801<\/td>\n\u226410ms<\/td>\n<\/tr>\n
                                            \u65e0\u7ebf\u4f20\u8f93<\/td>\n\u226415ms<\/td>\n<\/tr>\n
                                            \u624b\u673a\u7aef\u89e3\u7801+\u663e\u793a<\/td>\n\u226415ms<\/td>\n<\/tr>\n
                                            \u603b\u8ba1<\/td>\n\u226445ms\uff08\u9884\u75595ms\u4f59\u91cf\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                                            \n
                                            \u5c0f\u7ed3\uff1a<\/h3>\n
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