# 多摄像头/多客户端用例

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

多摄像头/多客户端用例展示了以画中画、并排等模式显示多路摄像头视频流的场景。

在运行用例之前，请确保完成[运行多媒体用例](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multimedia-use-cases.html)中提到的先决条件。

### QCS8275 和 QCS9075 的 GMSL 摄像头限制

在现有的软件配置下，单个 GMSL 端口仅支持在其四个插槽中的任何一个上连接一台 GMSL 摄像头。

- GMSL 端口 0 支持单个 Bayer 摄像头。
- 当前版本支持 OX03f10 Bayer GMSL 和 OX03f10 YUV GMSL 摄像头。

Table : QCS8275 和 QCS9075 - GSML 端口支持和限制

| SoC | GMSL 端口连接 |
| :--- | :--- |
| QCS6490 | 确保将 MIPI 摄像头连接到 RB3 Gen 2 设备上的 CSI 插槽。 <br><br><ul class="ul" id="multi-camera-multi-client-use-cases__ul_n2q_5pd_52c"><br>                                    <li class="li">将 OV9282 MIPI 摄像头连接到 CAM 0A 插槽。</li><br><br>                                    <li class="li">将 IMX577 MPI 摄像头连接到 CAM3 插槽。</li><br><br>                                </ul> |
| QCS8275 | 确保将 GMSL 摄像头传感器连接到 Ride SX 设备。<br><ul class="ul" id="multi-camera-multi-client-use-cases__ul_gmm_mqd_52c"><br>                                    <li class="li">将 OX03F10 Bayer GMSL 摄像头连接到 GMSL 端口 0。</li><br><br>                                    <li class="li">将 OX03F10 YUV GMSL 摄像头连接到端口 1 和端口 2。</li><br><br>                                </ul> |
| QCS9075 | <ul class="ul" id="multi-camera-multi-client-use-cases__ul_xhn_zpd_52c"><br>                                    <li class="li">MIPI：将四个 OV9282 MIPI 摄像头连接到 CSI 插槽。</li><br><br>                                    <li class="li">GMSL：将 OX03F10 Bayer GMSL 摄像头连接到 GMSL 端口 0，将 OX03F10 YUV GMSL 摄像头连接到端口 2 和端口 3。</li><br><br>                                </ul> |

## 两路流 - 4k AVC MP4、1080p YUV 预览作为客户端 1（主摄像头），720p AVC、720p YUV 作为客户端 2（辅助摄像头）

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

该用例使用来自主摄像头的两路流（4K 和 1080p）和来自辅助摄像头的两路 720p 流。对每个摄像头中的一路流进行复用和编码，同时显示另一对流。

Table : 用于编码和预览的多摄像头客户端用例

| 用例 | 摄像头（客户端） |
| :--- | :--- |
| 复用和编码 | <ul class="ul" id="two-streams-each-from-main-camera-4k-avc-mp4-1080p-yuv-preview-as-client-1-and-secondary-camera-720p-avc-720p-yuv-as-client2__ul_mxd_yxd_l2c"><br>                                <li class="li">主摄像头 – 4k AVC MP4</li><br><br>                                <li class="li">辅助摄像头 – 720p AVC</li><br><br>                            </ul> |
| 预览 | <ul class="ul" id="two-streams-each-from-main-camera-4k-avc-mp4-1080p-yuv-preview-as-client-1-and-secondary-camera-720p-avc-720p-yuv-as-client2__ul_uk2_cyd_l2c"><br>                                <li class="li">主摄像头 – 1080p YUV</li><br><br>                                <li class="li">辅助摄像头 – 720p YUV</li><br><br>                            </ul> |

运行 pipeline：

    gst-launch-1.0 -e qtiqmmfsrc name=camsrc_0 video_1::type=preview ! video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5  ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux1.mp4" camsrc_0. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 ! waylandsink sync=false qtiqmmfsrc name=camsrc_1 camera=1 video_1::type=preview ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux2.mp4" camsrc_1. ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! waylandsink sync=falseCopy to clipboard

要停止用例，请按 CTRL + C。

使用以下 scp 命令从设备中拉取录制的内容，然后在主机上播放这些内容。

    scp -r root@[DEVICE IP-ADDR]:/opt/mux1.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard

    scp -r root@[DEVICE IP-ADDR]:/opt/mux2.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard

您可以在媒体播放器上播放 MP4 文件和照片，并在屏幕上查看预览流。

下图显示了 pipeline 执行流程：

Figure : 双摄像头客户端 pipeline - 编码和预览
            
            ![](data:image/png;base64,UklGRlosAABXRUJQVlA4TE4sAAAvzsNmEGpR27YNY/9/eEldI0KRIxmQjiOZsXwC1TAU5RFoMtNTYSnCUpT1VzEbNcdHy5hb5r+vFrH7m4X617+ZMT88JKzY/+/KkfPgg3dmrNI1ExQUbCjYUFBQyG7o/dNWPde799W/dHSndS/2AgSNHxETHiw4AdYmvIxyEmp0UcOC4s2chOb0NmoBXoCaCXkDswLnnIOYTznHRRQpJNbYoWjDGWTkM5FpEdpDsz6ndGoL2oFoYSemUwu4Rr0A1QKctAMdbyFnC9caHN5SnF1soGl8zEtIdbQD54BSOa0gTWR3Ew51Gjtbp5FDrcE52yuYgJ3KCefAfCbPAkSguJEkSJaUsKC3q++UxxouPBj8/29qvvjDH357+t9nz3/84/BwOAyHwzAMw3AYDsPhMAwPw8MwOyjY/rdRjv1nxxEZGVnFg6yjkg2yss+pyMo4Tp6so7KyspK9l9vTVbFHFd8E6E3+f5Mk2XLvile84vuLuOKKK6444oorHnHFFVdcccUVV1xxxdHOS2RV98zprS0oLWg3EpLrxc+B8iDcKAhWTEMOfL1JaG/Km4TUx4+B+BlzIDnqWBKEMwulLsm1Iwn4OtN6QrkxJIQxDVdNCNaNhKCduXpAutEENLQJP0cSguPFISAZ+FsUlBsJyRhxPQk3ioC8bwaxoK0tTBiGwzD8cfjjcBiGw+FwGA6HYRiGwzAMh8MPf9vx//s/ASJSvcRdrjXf7r95AZLNFwKnnBrRgKC8aVcpvnB7SAa2+2k+y2lBfeCU9ZHbQ7L5PnCJLRuCbiPqCWypDrs9JANbbiMWk3ybDV0ZgWTHnMF4N0jRhihvnz0rgOzKlVafmNUcfUiU7fPDCiTXzy9IbFImED93zD8rgOzIhcB2RCxmla6z4zKZ2JAJOOoVjNqoFG1mla+fI1rCUS+YVUQfonL9nNASjvoM+jozoCUY9UoEs84WLS+VCTDKzlxxgL1a+lC8dCakI5ygpQ9F6I75g77OXJA+GOVJ3H/cf9x/ffVpeYiRJowZQoixibFmRMKUYQQYKBdhTZjkGCoMg+EwUnsxMhW4oJSLGhVDhdHNufZiXKrALYzggkLifd1sYacwCoSusPc1SimMEnGwVmKnMPI5mzBCjCbxRSEYsl8XhGDKumf0cBngJQAXAZfBlQcXAZfBHyC4sgHXV/iP6r9VYaZqZlBSYQbFRVBS4YGSiguUuIKoXgQoFTAzgFRcoNQ/OEC9ooFUVTPFy1G9nOJ6Bfyv+g9MGEhAySghAZIYBPIHekSqGcgoIuGBIrp6ACQGgUQEEgYyiUAdAEbQPzDAKMGVTJlEIAESLwMkcBFA4joFTH5V/TKl4ufXX5UR+RP/N83vXr99/ar4ESU/46vP1oQH/JG76Darn4ZUMP5lttn8uvrxnDAD+cvk149Erxhgkv/sTHjAaPbbYVOGEcHo53H3u89vuoZqZuBf7cuC+IMCXJcn4gqm7LvutPvF9d+oxaohXkwZ1hExCCxWDXHNAcADDBj+9S+nIv8dRO6nW9md+raN3UlGDoCBcdv2p1/VMiJ/aHefi786/iSs/YIwuJGUAwDAAxgAeOD9/RTJ1AEwMNnJ8CfrZ/llkRBTed7+KpeeMLDwZU1c6MFAMwMMMIN3AABcHQADYAYAZhjsAf+rWcuIMAw0AwAzwAMYADMDcOUAf8yl/tlxXT+6gxwdDF4PvKZ8biMCBi/XEjoAuMYASZgpCQOXn4PsqNhtkh9M/V83dK7wn91WGkdSlY9SOMenLnLPcnYu3v/iTgXjVmqPkqTClFSShBnoRXjy7xxJBUcycnShrN1Whs5hVSYKJrkEa4KDYQYOhIFUEkovzKAkqVcFkEpHBUkCHIwBM/EbAiTpCCVJgIQZSJCEgSSuHK6X4l+rBLiWNw6gF2ZKLwxeUknSc3QgiWsLMG5+OCUUny0rKKPyucsHpYszwaTN3VZO0V9tw4qK2c9iEG4m98lmRZJFARD53VOXqCmLPqxAJNUa27CJCDBrwlFGGZ4mPIWnhGweM8Kd5eQe/dSR6dozrCf+msx+6kdp3xdU8PYUhk1ExbZImoZcHsNTRICojn1BvRoozgVO4ZlcH0cRmZ6S4tjHhIFVO9yPyNvTj+zbJjyQVdjckj+mp1uAhzOLJia4blLiaqE4LPzjIanWgxiPwm1EKOM+/JASLLYJqgPP4SjiACanc6LXFwcZEozlkeQv0jq6ICIJ8B/8X+Zu+/lvXretvCFABbnb3xYS8rBNHQGGbZR3iSpDv1z5ecqoqxdBJ3lEVt3+KdgsszIcBfki6GSaEATgelmifGJxKugAHvz1UdZkJYvyN8Nm35Bx7a9yv4yZtKuprJIH6Z78+ocume38uvRniV4FwNvNatG20vdBJ9+8dx/kcfO6Dc4Eo034tYzI1N/lbeCfhsFG7hL3ICnBXcDCX7138b6OrhzMxffz+2DnPGyCzWr/225NjvZt3gZb8k4ilN086GQVOU/yKA2vLUxRlwldLxW59ddsL1IFOZPKbWU/eh/lQUZVg1vKxFUy2bVB0BNc+ye36hJlI8P3/1av/B2j13KXvu+lcWlQf/yUlu2dsjIMbWSSvR/KllADs02ZZO3uoW39h/dkVE7cz8+Dgm2SvfVjt5DDJy79CZNO7g5pI6NPPEtILv5aVJ+Sf5ERcTUoZZJludTrf2v2sh2PpK2StG5T8q7mYUAg4fu0lLx4/yxfjy9o4Xo5uoWsCbtaGN4P/ep9NGh8kHn2qWjLJPUfE6abelAt04//fyS9W0vvHv0T1a4twJEciLxMmLVDh0sAyl5m5FZ6R9fLmgBcEdSZO0vbp+lcti6pF+SqS4iypuM4lCLpViRTfzYOZe3Iz/hwd1jaT0kWcnQwMMr9pUtbf1L8wD7KM/ncRW4oX3saR/e1hNxWjuQqJ9qcdL0c6Vx6z7WEYzrWdUJcCTY56YZycK6Q43gkW0e3lTfjk792ywH+A+nmfupcJafx5IKEnO6H0hN25XBHv3BRsHBr6d20jRzHJ9mmsovoohQDyhJkFDy4tRz/Jagc7Doj3T+7WEL36XFFx3bnOIgcyoTKrTQOHMmSIKt9nZKV9I4uCp447CLnVh1dGpTD5+fZThp0b6lMg4mbBrcESCn9MOTfOTCW0AFMV35F3gdTktz50XJ/cC6U2LGSswOjdkoXjR6mT/6vn0SwcODHUsqHbULXyHT2/Dzr/PSK0C4IN5SYLCQcj2RNMJZZtDmO3Voax/TdkOC0jcitNJdRZrXMqXb1YOgXvIBlO3t+ns1lyEcJFqPUcdCKyqidu7Xfygq8zjDlomMvsVvKavJwt9/Ml/Qw+UpCEh4OUjaSZwTXMiLAXbmWcvLw0AbzbRp0vyyn0+n8rkq6Pw3iN11CmHLCdxYjVRAUaVxv2jXBqPxnKvhGqtyfPDzU/i7kUrYDdq5q2/nwuMmJdkGA2XHlS7l0veTT6XQ6n9xfLYrLpfI8lPnDw85/mmTZu5knyAY9XOLfq8xl6HDV2bTT6XQ6nzdMvl20su8vqD3B3K2lfZbwegPcynKX0y3Lsus6f982A94vpOH/Ur0Ue5m/pyrT4MGT10Vddl2399tj4k8dSYLRRW7uRwRwu3PCWRA0xiGGx7Umiod9/dFRlXmXEC70l/Oy67rAbxdcytmB6f456cqM5NPqggTkx5G/4lZOjiQB2CuqgIuhr5AwLLuua/2gTKMXmXjcok3I0N+9q4hXHkaE2FDlyppeIEnI7Fz7sXuhcPwoa+JaIyqf9g3hZdLmJDxzOTt6L+G+lQkdSXC+v3cu9ecEAK66hNztY0fX12lyiUYaR3dc7c5KR2n7l+SqGM91zEaYVUZM3NaRo7eRk3NcbSIC4FDWZCUjRzeS7b08j+nSLh/E4ypybpxvcB/s6BznX0FfVYliHRdN09bRhbIkAFYyItMXCaVw7mPXJW4pk091mxGvOtc7Z0ogvqZmPJOlozvX6+LPy7H7V2ov6xfrx2mwSojrCwOHsokIVVVi/0QiD1BJ8HA3n09DnmREsJdD0sr0YT6fz1NXtOX5XAYFVVVZtyCLtvvj+ij5p6j9devxH5jk/nHdyy474YfmGengU9YRDMbMa6wuY8yNp6xiJPV6vY7hc0pVix9AVWWXTB1YSOgWsprM5/NpxfdP+9HhUX4aUlXpLtgPD6P9N0zqfX/oa/mfhL8jeJLFj5c/mocyJHtZVP9tLm+IL2ZXmnBLyary6mPk7HeEe/Z8LcPxSILjoZcFVZUXyDPBt/49eZLGHST/zH9TS8u0bTN3kLcJ8WXomBOPShNuCaOqKoxrxG6gMwNkScHIz91BjuOsDPr1aN9FWbA5FU27itxcIrSlx5+6tYSOjcyo1xrF6kiYV7F7pmK2QLPK67quyzseVmeC21Wc5nk9MCbXeRDka8LMlA+LRMFi1+7bScRo8UxltjuS0aQN2kmUlSHxbpysBfeKlr2K9YZ1jM1YLJaI5VReqQRqbNp0m4cE01XDx9Wqruu6/JbM7tqgbKhmBo6eYs9DHgR3GVnk0tb9w4TYDQmwqYOgDRNVNnWwL0dU+2KQfG7UyHYTsaCJosqrau4xqCoISRZDKvtVTMarxo1kUu+DSUSYgeunLZk99VQOdxF5WFVk3/qbZrjgh/pEMKyXX4bfyDbfIPneqJHtJmJBE0WVVwox7XOEqCaPGe1mrlh9S6Z3bRDMU3KdB0EwTcnwKcLjLxLPLnTFqqHiIU+J6wsDEqgNRpLAkCRILgYSwIAESC4EQKQpCPMiSWAG8j7OSCBJYECSAGQWZ6T0Q1K88RdTwRECDGsZsb2/1RveH6kK12IV10psPFupKndamJTZYkCSwIAESC4EQN7Ht1TzAgnASqpPcUoCRJreEgmQJDBTJmkcUc2USRrfUu0LQg0/nSIbIz4nOIKrKaVyc6eTYUCSwIAEABK4kRTv43sSZmZAAgAJYEgSAEgAZRZHRIIoIUwZRbAvodyL5OV0iuyhc4LfoqKUyiFuLibIgARAkgC3AMgsTkmASOOUBJIESBIYkCRAApgiSmDXGAaqXaxqZqqmVC/VlGpmSlWql6pmUFJhg1XNzKAkFWaqZmaqZlCSCj9E84LWKa+REkI8zB4zVTNTqinVSzWDkoQNVqpn60iFGZQkVM1UzcxAkmpmBiUJ+6KMKhT0Jqq5JcxWiLeRYaZqZko1U9KNZO1IhQ1UqhmoZqZqZko1U5JQBalmpuSXQeozkKgEvW61iNHBtbnqKEmmqmaqplQzKEmFGZSkwkwJUzUzUzWlmpkSdq1hsJcJ88LMYF6YwbywgYC9OAB7YQD2cqnCrarQGokgYTDMDOaFeQHYxTC4Sk4OsIEA7NIAYIMB2Be2h6K5ow8XgqDBMDMDXC8HAnYxzMxgl4SZGQAzM8C8gH0pLn4URcmlXwsxsJ2oS8K8AGwgAPPCLg3zwr5cgd+HKbOyoETStgQJB7+PqQpKyBcNpseYsL//lE2JbgkbDBbHe8JevZRNCUHPK1qedH5gy0uLRot3IIlVMMc9WL7MZrPSD3dBqfBlNpuVPjS6hQa+DwxvyJ2u3IHj3fvNyvVk+VJKH3K+lNLvCWle6MqIBKReZ0PPllOGMaeOSHwwSt3P/cf9x/3H/cf9x5yhxnXMtT+WWWKokCjiQwTiEm8hBpAOAUingKMzABIeZpUIxzQpXdSQ7MoNB5jRkGy1xgk65oSG5Bn0naQBWQZH1DmQ9K16SpA8OHMkbUjmCyVIHoSac/QhrtqsKUGyzReID2lDXB9cAuTB/4xYXoOaLgrKeHv6Fm3LqOGikEz/mr7CiVFInpiibTwKyqZdtiOW3vtsH6CAmQFQBcwAQBUGKGAGqAJmBgBqBqgCN5eUXjVwMMDBoBfgQDXQC3Agbiopz/PV2y2VSZ//psuHGbl+Lpo83/IwXYUJGR3z1WJLxegYT3aZS4f5UxgRN5OUoeTDhQyZLGQePrzLIzeS3w7lX0p/2O0WMmTy1n/8WfwkPbnzy+Ap+r5tJxO/zoibSOBaHuj48DlEcRA6Nx7JZ0vXSJ652N+fybzDj6n0Y5f8JSQX8hwxWbWpc5X0N5WGEhOMiihJiNuskZEbydnxvp1T+RxEsayqiI6KXRuRhYQORJzCbiIpH4OMAAlm4etNGwzYkumA2eeQMvQlWJxA7LqI3EpDQMmbSvMLmNWfQ1gVzUtwLh1NA5mQF7kbTOBQYoJRkYykchwXLyEr6Ji99dNBhYQORJHeVDrIAx0f/KiXpXPJw4tlWzk55+722aBktUmdq6QnbiKZMpTVbCFDxm3wMFu10rteTmTqT6mcSPp+5T/801sJyTyICK7bdvL8OdTpDSVTnuer3bck1/PV9EMxXHM9K8gobKjcDiNmYb5anKgYhbcEmD7n+TAj7GaSKQlSARL0giQAEgYSIAFSDSRgBhIgYTeVDKoKM4OqAgqDwsxUzQxqBlVVmJmqeaGqCru59Krn/uN72sqaIfHcIBFjs8BQfXKIxNocQ2VWsSDxaJYqyv3H/cf9dyBnWLWo6c3KgzLOfiCZtvqg3Y5FOF6nlDMqYT7etKghWS7O96IpawlHXXKQtZKWgBzuTdN8OxauBsmD0s7ig7F3TdNnObsLlJf/NfsBce4/7j/uP+4/7r9N+gH4IgBcBsClgJtJIImXB5K4CCRxCZC4iQSmb9bEywLTPiYGgfGxIC7QpGmgN3IADzyAmQHwYADASkIHAwAPYAYMAriVhjAAnkZ6B5gBBt52JdSAGzcgYaZUMyUBJakwUM0MJCt5Q4AkFQYSSqqZQUl39ihJBZhV9yRVSQVv6xUUJG7YKLII0CQCgCwCmaUpiOQ+UQNvMy49TNI0I4EoYpJmVIDM0k9LaUhGaQoCSIDbjExTcACZpLdgbJI//Skhw01MVm3v4mn7OQSrysXdkFBMf9MmB3nj2NTtvn3IiMe323ofhAmZzNpgdeefXDJs922+JKvNyR3L7SLw59kAF9dvM0q2hndSELX0dENZv+/2o+pUBymf2ogs5MEtpR+fZHGujvJA5NLOPvMf5UTeSViFgZzcUMLq1PmpO0njhhLMT6E8u9t6xbTbFITP1IBnaVyx9xdE3iFdbMfuv6+lGTdyJntZu0p692GejMfjx80t8n3lXBTcuaWEjq6Rk3u94XhchKnbDjjSMS+TpM7TuvuhSxhrk7UT92YzC7JoPyHIYvvHUHqXBQ/kqk5YyRvSRcvTH/NNxrwEeVvuXCgxwUpObiL5qOCYHBQTfGgj1GUthYPdQDk9PmuDKac180Xsn9eyJQ95UJYbGZF3QRJLT49j2G5el/vSc0tG5Y4TPyV4lsZFz63I6nRRQeVdG2ElrR/yRkpB1eKzoQNHQRX0fD05BpErgtUh+rSUnqxk2fupp3ehDD/eJnftpWbiqaShc1k1a2XrXqRuPz7LkriJkTy65SGzthYyStUw5r4XurjN28LNunpB18t6THfwJOViNaV62NWOdJdzjVSO7iSnJDw75wqZvdiKUVtHBIOB0Mm5DTvdmsrnlUKiOSpEptzJKnFLkYYcSf8+WdfygWAosiUG1G2cRL3fZXzqBjFr/zH7tGzlxC6I+amX5oVe13AnmVEZjLHUY1K21jMjSh2NGkUpVOBRhmTU+TGZ7aSr21x6grHfRQOO7hzIalOXm4yrQTl52rf1Zveuccs2yGuZJO4kjZsNCiKUNciFVJTshe2DSiUL4rM2ZKeU4PIMBZNvw76ItjHBpJ0RYHaKybgPm6jYJlhWUEV1ABj3xyI6pWQ2Co9LkukpZXGKqFhvE1QVwKxZ30BZThaEEGshM5CEgVQz8ELQjd4VhIEkwMEKEmYgYeBggF4FSIIkDKSChIEkfObE+FYRG9tgAMwMMDPDhTw/yAPVzACYYbAZYGYGmBkGm8FrZgAMgJkBZoCZATD2pHs7XioYtouIsFc1e2O4jUjYDTJSYTfIDLBXOYvziuf+4/7j/uP+4/7rC9eilnDUXRlhQEzhD+7KQGcG4Lh6Ru7GzEfcg2UjzXwI40lgaaSJ4P7n/uf+76Pkj/eB0gH2gfLHTrAPlvTtA+UbI5aUB8vYj2k7xwNlZZA+DO/Bcom2pAfKwK72IpYnHrw6CsfVM3I3pg2JvN2e1VE4rj7dbMzR97R2B1ZH4bg6g+QhbX+9eHUUjKtn/DNiWVvUEo56BaOep+1hM1rCUS/soe9tk1rCUZ/xKNoGhrUEoy6fH7mUtPTBKIcdYK+WPhR/Ix3hBC19KEJfTN926YNRnsT9x/3H/ddXn9ZUYc1wCWMIc2wZ5kCpGC6R+CxDdf/4kL0vzowolUCNkqFayjXsrah8Xqn/HcVOJZeEva9RSrlf/F6JnTp6zqaCclNCrLFjW1JCMGXdbxIOMDPAzABVwAzARYAq4AFUgQuAqwhwCUCBAVAFLoDiDw4ormhQBWAAXg5wKQDXK1ASBhIABwIkMQgcCDNwIAYoiasHSFyg9KqZKb0YAJL4AwMkcSUDB4IkXgZI4CKQxHUKiMmMin54SxaTp/wYkcXDmvCA0TF/mhQEGB3z1fCeMDMwvEv0qqHJ809DYoCyefs03VKh/In/dnW3JswMPO9i4g8KMF2ciSsYeN7l1bBnelcRL6ZsHiJiEJjeVcQ1BwAP4HGN5FTkQeSqz6GbPbxbZe4kIwfAwCyXr2adX5HRN/I4C8qUMLCSzQAA8AAGYBCA30tgJFMHwEw5kd0wlyHJoeSz2q8IA7ONrAnADMAAAPAABpgBwCAAuDoABsAMgJkBBmAAyIWMCAMMgBkAMwM8gAEwMwBXDrDY7xfnducOcnQwAzAAADx3khEwAAauJXQw4BoDJGEGEgbGgeyo2G1u32+6yLmzhG4rjSMJ5bNUzkVdnbij9M4t5ZkAo1JqD0hSYSCVpJoZlKQiPPlzR1LBrYQk76RwS5nTRW0JBfkowZogVUnCDEqSCgOpJJQkFWZQksRVAaSSBEiqgVSSCo/7INIQSipJgKQaSDUDCZIwkMSVw41kOUacci1vHKAkFWYgSYUhLaAkSKrn6KAkri3ArLiFAWkM1U/5YjMoicsRwaTN3VZOrqgyKqZTEG4m90lZguSp8jzmdZmoKaNDlZJAfM+0KqgAUZwLUIanBxdXMZXHOiXcVk7uL1I48tAkBEfddL8mogI4HG4JkGl1jkEgzlgcyPuqSkmATKtDRL0aKOJ7xlVKRlVBZVQgWa4TwsCi/Wo/oiZxxKLKyLSKqbyPEzWkMdIiIpgVEXHV+G7ib79Dmg1isj6nJMDbw7YAgSgF4pRpVYADyLiAXl9Ufk8wbeckj23a5QMiRAB4HyzcVoaLvd+eiShRgPN3USwzl8VwBPitH+ddouC2C9r9c8SofhsGvv/zS0LGud/u8zQrw1Ew/Vm89/2QuL0F4EZSsa6ZxLfOAUyD01HW5NL/l7zdlwcyuttvOn+aMemmM6nZB0G3v4vIZLhvg01DXAXA23L6T3s/qKqN/9fiGa7xj3W7rwtCk9XD+t2ITIPnyV66oml9/0j3vE8JLjp+xvcLMnpdplcNZf7Xwvfz++6XhfPwUO/b/eI78jNe+l2wisnJPkL99Cbw/UkyKPTf8BrjtqsTspGGXPsntheQCrheGrcVf1L8aN51EakGxv7CLSWctfu6IpgGR7fqEuVSFsV3vUwYlbI6f5zI2UVlcP6u8l/vzMowtJH8/PFRliQBom6jqJ323X7TU8k8d6GnEj9Mvy/bzD3I6LuslyGTTvI31VlmafZGjuRMjt99XMiZuCJIXhVlW/Yfn2U5Hsm+Tw/B64gM22gtA2T6/TJo6+bj1I/HD+LZBeBMvh0/y4mwq4Xh+zu/L7L9zjOOg/r77771v2HWrr7PlpKTdxKhlvr0cSbfurX041BCql1XGBhKQS7aiEk9Jy4B0FWySLiVIemO8mNKGJjVQeHO0t5VVe2vycUKXHUJseowduOZ/ENSlpFzqT8c93J2dM1ud1gK8sS5tRwJgJxI49LWz0+HufR0/T51w0FHR1dJz2PvnGOdE2393o2Pcho7btcsZDJ2Y3RPiV4Nujpybign5wp5Mx7JyNE1Mhqv/dN4OcCf0rmprJ07y3Y8GdQmTOqukQnVrhzu6McuChZuLb37i38/duORLGN5cM6tzxhQdplz2X7iafw3VLvOiP3Qpf4zOewix3bnOEh5km8icivfOnAkSwL8WO8PZCUh6WJ/50ZB6tyqo8uC+tQ0p4mc0L0lmAYTN99HBEgp/TDkPzgwltABTL6SnkyD/L1zqIMoDprxOJTYsZKzA7N2Tsd1H06CPxHBPztwvZfpKHbktzI5Nc2p9lPiStD+M+GGEpOFhOORFARjGX6qJ268lsYxfTd04LSNyK00l1EWreQRcfVg6Be8gHXXNM0fhxJ+epJVuKYb1K0IRu3creW1rEhcY5gyr9nI2hUybT70QdkX9JBHWbwnuJWGF/DQbr4nuJaGAPMyDlbNh1HXHr+Pg6Asy/L1n09J9yeqh3mXEKbqh5IqI03ShNxdxCyXhsqomxNgKIfFvh+Ndv5sy6VsHRhtdi7O9/XbeZAT7YIA1/NAZPHR9dKVZVnWqyvDYkBx0ZpgKs+9hKPRsz8fRffvZgSnQTbo4TJ8K6GDXXG6fVmW5es/hy6ddSL1mQPKmsoomLv1Oz/3m+sNsJHisYar9u1+v/f9vxajQTOZJcTlWPl1SoCp/+z50+t12wb7ve//tQgjf04AJKOL3OM+IkBK6Sxj7jlIKqKYlvszCcVTDYJHv/omCPaB7y/zC9LggU/BkuTT6iLH7DyRhTvJlgBIwF5Ry/enL5ZwuA/2+73vt3H0IhOPW7QJ2fhdWxCvvPciVpStQIAEHJNDuA9S9yIy+/QUpMS1RtY+tr3jbRzHadw+fYwGDGU0ds7xMu6wX3DsnCN3m4SMgh3Tj/HHtO6KCKs2cnTV/P72EkepHN3pbndWOkrrV5KrVoZaHko8iZis3qRj5xx5lLUjd0GWxXH83eTdNmMlpzHdWZpMnsd0SXkBmwc45/IWsX/nSIbDRF9VCW9oB00HRzeSbRTHcdq8C79D+iJDiR2Tuk0Y73dpWyfEq86txI0g4qrUuDs/dnTFvIgfC+fGvaxfrB8XsqBeYxg4kSAlODDISeQt1tL2fd8fTxd8kMOnWmY/3ff9mz5zlSzSdCEVB9YbkJV8U0SHdvM+2gzYP7io21TRISh3EmCkieUdCNbqls1fnLZaeMxQPB4/J6eU8s4xq9K2uQMLCcfPshv1fX8smG3KdXaUkF43lIKspNxG6658H23KQ3TYyZ+IYEewl2EWbfdfkTMJs6yXCV9ZyaqqDU0RNvN8PaCuomVbJyTpDtI4pnI5t5VJethJh+TJL8bfyoz6qotVVQNxPDBKlhSM/J07yHEc7+tD9H0t96nkP6RJUXfZgO4yR8dQRsS1xiGYUA0ANCkXVDzW6Pet7/u+5KyCbwk2QZFu2r3v++/8gmzaYN82VADKt3Wiym23b/28YFRPPeWMLFZ+6+dFVvqh8G58dCO4d1lWrNesN1zXdRsZlVdVF4lDuzYTgnHQMw8C3/d9+UAWtd/6w0QBgGE7IO9avy7Icytt+/CPU6K8I5jM/HbzbpFRk+G+bf3nhPhikLx2G2QnksGP9lReVT2MuSsQktR3BMMgJovgOB7Jrm39/CMBgIe2IdM2pPKuzMhqf2LyIPv9bFrzg38kOd8viS/uN/LgX7oNshNJixi1yit19gxRfVsw6uZuve8dD7W/8csDeWr3nV8eyOc2wupPnnLiin3vGOVlSlxfmCKNCBuINIMhSxGlg+9xm0YwRGmSpBcmqsyqc0Y1L+5TmCmjw2kNAmkGU6QRwGR9WieUfkiKN0aI4sEL1l9zuuXNY0fe1uqsEEJMeVXVGDeybj3AFgPSDKZJGiG9MAIYHbYx1byI0gSspPpuu4wIMDufPzK7B9IMBuXH82kNwpTpeRuTsC8GNbrjcbLPwfAWK0qpTHKQDAPSDIYoTVSTNHIjKT5uDwlhZoYkjaBIIxiyFIrbNIJivS0YpUhTKJjE2ZfBl+1z4FrjcbLrH7DoKaUQ3hE3kwQZojQB0oxJGgFM1qdlRCiz5WkZEchSIL2HKdKMSRoRjOLoWsOUhF1AwkCCF4MkDKSCF6oZSBI2iISZgSQVBhJmSsKgJBV+iOYFrVPFWjwtxMPsMZAwUxK8GAaSVBtEqmfrSMIMJKkkQMLMlCQVZqYkqbAv6P+C3mQ1c/RrhHgbGQYSBlLNlHQjWTuSsAEkYUrCQKqBJExJKglSzUAS9sVLfcbTBL1uNTeH6uCqo0SRaiABEgZ6YQZ6YSABEmYgoSQMJGHXGQbYxYCZAYaLDYCZAWa40MwMAOxCwLwAYGYGmJkBZmYA7OVStSOFpBLCPgPMzADDxWYGAHYhYHCVnBwAMzMAMMAMMC8A2EAAsC/2N3JhD0VHJwaFIMcAMwPMzADXy4EAbDAAMwPMDDAzAGYGwAADzMwA2Jfi4kdRlDj6/UIMbCfJADMDzAAzg9fMDF4zA8wAMzPADDAzAPal2v88T5iVMSoDSSSMkb4VDn4fUxXUti8nWDyuCfv7T9mY6JaYy4PLX+YxYa9eysaEIO5VL086P3BWV1htsNZAMjPeg2UAAft9F5QKAwnYVaNbaFx3tAzIDbnRH+3JMlN7JYYvU7VXcuTRvNCVEQlI/bIerldkGHtVRyQ+GKXu5/7j/uP+4/7j/tvKmiFxmSAxs8RQ/e2cOoHnnM5QbRWOubaoJSBPcoBPaAlIR5jUEo5OMKolHFfAEXWO57/sgWVAds6FHHX/+PkDy4Bc2EXfq2ceWIbjAyfp65gzZUBuv33EgjjJ3AuUlVnaEHfuBcoM4pA+zNm9YJmgrXEvUDbt6jViSSOhDdKQNJ/0bQXtuE1MobdBEkl9Ofp2mKS3QfKbLVC0vWtyGyC/+d2Ipfc+YfB64DUzDDYA8MBrZvCawXuDCfSqmdKrBg4GSaqZ0gsDvQC9iptKYNw/hAVVWQ3vnn/iJ8r4p2G2fh4WLjtOtoDi/PwQxlRU26QZRkxOz89bEDeTwG2w2ZWfQ0MO5TfdYiV3CUeSd/V+c1p1nXwgJ1LvWn9L7NqpbLLvcj/PZZ4QN5HA+HPIM77P/Sj170iGsnSNdAcuff+YRPVrxhI6pvWEXMjb7zPM/Yr8IKMbSi6UH1MHpk0UreHoltK4kZwcs/YtyV/cgqiQx+/oGBGLNnOMZeZInNY3k5RfBRkBEmT18Ot6tZGRG8mZTNs5lbPPIU0eZZ8fYyp2XUSepXGAkrCbSYvWo+T7uUyPfxwO2F7KsXooxe856CQNYTeYniUliOjTt9I7jouXkERkdKiDjAPW0jsAUXQzCdxK6OiOZXSUYkweXyw7l2vnxs9+Oijq6sS5uPxA3EQy5aNMTqEsePDr/o9zXz64D3IiU39K5UTu02Az2ob+V2QeRARPshqNus+huKFkmhzrthtG5OnPQT3Z7s6uyg9k9hhSOVrcs9h1bTmMiJ/F84gAq3zT7r4n7GaSKZMsIqFMsojEpQ1eMspuSRgAmCkRRSTsppIpSYUZlFSomqqamaqZqZpBSSrMVM0LJRV2c8kA2EDAXjIAuzxgX2IW5xXP/dfHqq2sGRLXLomJZYbqK3USvTmG6ghB4tEsVZT7j/uP++9AzrBqkHRRUGLMsR93btVTguTBuecyH29a1JAsF+d70ZS1hKMuOchaSUtADvem+ecVD4Zki56HOosPxt41TT9l+QhQIhlvZj8gzv3H/cf9x/3H/bdJPwBfBIDLALgUcDMJJPHyQBIXgSQuARI3kcBomRIvC8yWGTEIzJb3xAWK9Rp6MwgvUslxAC6By2yl8WBAI727ALztag9u3kyomamamaoaVKkKU1WPKit5Q0CVCjNThVLhgZJnD5SqAONjQVWoqoK39QoKpd6wAQA1DCQAErcJCYAwU4JLD5ncggoDyARUMyUSV0lDJW5BAiQBkElCDiKTRJkaMLmbQNnsUrL4pnFR+PTbof5L7P5hNyKUw8fEw/W8LvM+IWaT4qsyPxHKJi8fQr8hm7ysn1NyvatcsyjCuj4mAxg9PmaULI0pdxITuTR0oVSfdjJ5M2zLKCm7RJn6O7eUN+7gl+GbuYTE01+LLv9ZXEtFhjINF76c3Eim4dDvMneSkZvJ7171bCFHd1uvmHzjnwmfqQG/lZNLA5mTuzZJy9658Vm2414OZCOVq6R3xzodj92uS5D7PcepP3GFPDjnjnJy9Ybj8XYRu600bigPiWNdI6nzZOp/xgljbdLPYeZG7eMmum3vmES8jb9vpHepPyN3XeQqecMIvC+KaRsxL0Em5c71siZYyclNZbaOnCMHxQ68ayPU9VwqB7uBcjjG3KNtMGW+4uKb9btlLA2ZPXdl2coHctEh9YdkJW8cz3lXdn6ZMS9vydtyx2c/JXiWxhW5SPdQXFRQ+dBGWIlIwxspX1Ruygbw2P6YtiG74Yd9yvQ3Q9uvPzbSkycpGik8vRv9tVici4/T9oLocnRcH3MJ1u4yd22Eel8t/Ji4iZFEyG1Typ3+XuiK4C5Yu7s6z+lGUo05LjxRO1nk1AGvSzq6yaVcL2vCneWEbeHIrQxfbOVi/y31JsZSLubaGaupfF6p/4XKNMmlvnVbkZ6ul61jNpcPBGe+jAgPu/I9+Rlvu8sw9udkupItN/V7ukr6lwB3lA8Eg3Ht8aG4nQ95cWZEqcTfQgYOZULeB1KQaSlv591GeoJrabMBR9fL5i7fBG3GuvVscvIoq3lXSuNGUk7+h/+UuZOM3Ey+pnLuR+hKMFnJmpK9sH1Qqdi0+KwN8fBrKkdHKJjOFvMmDtcEk80dFUyHB3I7XzwX5+MtRn2imvQNlNu7xSkOC/Iw2S36iIyHX7Ma3lO5Pd6i/wBl8XzmBHOyHEsJIdZCZiAJAwkzkI5e0FXvloSBJJSDARJmIGHKwVAOBEiCJAwkQMJAEj5zkhYb22AAzAwwM8OFLEbBN1AzA2CGwWaAmRlgZhhshoFmAAyAmQFmgJkBMPakezteKjiT1ylhr2oWJ11GhN0YM5CE3SDzpZQ+U+bw3H/cf9x/3H/cf33hWtQSjrorIwzIm/pXINkxZxiQpl22R5oXIPnPprN6vOTfbKT3DA==)

## 两路 720p 流 - 每个摄像头各一路，采用并排拼接方式显示

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

该 pipeline 展示了分别来自主摄像头和辅助摄像头的两路 720p 流。这两路流并排合成后进行显示。

运行 pipeline：

    gst-launch-1.0 -e qtivcomposer name=mixer sink_0::position="<0, 0>" sink_0::dimensions="<640, 360>" sink_1::position="<640, 0>" sink_1::dimensions="<640, 360>" mixer. ! queue ! waylandsink enable-last-sample=false fullscreen=true qtiqmmfsrc name=camsrc_0 camera=0 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer. qtiqmmfsrc name=camsrc_1 camera=1 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer.Copy to clipboard

显示来自摄像头的合成流。

要停止用例，请按 CTRL + C。

下图显示了 pipeline 执行流程：

Figure : 主摄像头和辅助摄像头的两路流 – 并排显示
            
            ![](data:image/png;base64,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)

## 两路 720p 流 - 每个摄像头各一路，采用并排拼接方式进行编码并通过 RTSP 流传输

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

该 pipeline 展示了分别来自主摄像头和辅助摄像头的两路 720p 流。两路流并排合成，然后进行复制并编码。一个数据流多路复用并保存到文件中，另一个则通过 RTSP 传输流。

使用 udpsrc 在目标设备的单独控制台中运行 RTSP 服务器。也可以将其作为服务在后台运行：

    gst-rtsp-server -p 8900 -a <IP address of device> -m /live "( udpsrc name=pay0 port=8554 caps=\"application/x-rtp,media=video,clock-rate=90000,encoding-name=H264,payload=96\" )"Copy to clipboard

在目标设备的同一控制台或其他控制台中运行 pipeline：

    gst-launch-1.0 -e qtivcomposer name=mixer sink_0::position="<0, 0>" sink_0::dimensions="<640, 360>" sink_1::position="<640, 0>" sink_1::dimensions="<640, 360>" mixer. ! queue ! tee name=t_split t_split. ! queue ! video/x-raw,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/mux.mp4 t_split. ! queue ! video/x-raw,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse config-interval=-1 ! rtph264pay pt=96 ! udpsink host=127.0.0.1 port=8554 qtiqmmfsrc name=camsrc_0 camera=0 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer. qtiqmmfsrc name=camsrc_1 camera=1 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer.Copy to clipboard

要停止用例，请按 CTRL + C。

使用 `scp` 命令从设备中拉取录制的内容，然后在主机上播放这些内容。

    scp root@<IP address of target device>:/opt/mux.mp4 <destination directory>Copy to clipboard

您可以在媒体播放器上播放 MP4 文件。通过流传输的视频以 RTSP 流形式显示在主机上。参见[在主机上查看 RTSP 流](https://docs.qualcomm.com/doc/80-70018-50SC/topic/camera-and-video-encode.html#one_stream_1080p_avc_rtsp_from_live_source__section_ayq_2nh_pyb)。

下图显示了 pipeline 执行流程：

Figure : 两路 720p 摄像头流的 pipeline - 并排显示、编码并通过 RTSP 进行传输
            
            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)

## 两路 720p 流 - 每个摄像头各一路，采用画中画合成方式，并发送到显示器

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

用例使用分别来自主摄像头和辅助摄像头的两路 720p 流。两者均以画中画形式组成并显示。

运行 pipeline：

    gst-launch-1.0 -e qtivcomposer name=mixer sink_0::position="<0, 0>" sink_0::dimensions="<1280, 720>" sink_1::position="<590, 310>" sink_1::dimensions="<640, 360>" mixer. ! queue ! waylandsink enable-last-sample=false fullscreen=true qtiqmmfsrc name=camsrc_0 camera=0 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer. qtiqmmfsrc name=camsrc_1 camera=1 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer.Copy to clipboard

显示来自摄像头的合成流（画中画）。

要停止用例，请按 CTRL + C。

下图显示了 pipeline 执行流程：

Figure : 两路 720p 流的 pipeline - 画中画显示
            
            ![](data:image/png;base64,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)

## 两路 720p 流 - 每个摄像头各一路，采用画中画合成方式进行编码和 RTSP 流传输

Source: [https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-multi-client-use-cases.html)

用例使用分别来自主摄像头和辅助摄像头的两路 720p 流。两者均被合成为画中画，然后进行复制和编码。一路流复用并保存到文件中，另一路则通过 RTSP 进行流传输。

运行 pipeline：

- 使用 udpsrc 在目标设备的单独控制台中运行 RTSP 服务器。可以将其作为服务在后台运行：

        gst-rtsp-server -p 8900 -a <IP address of device> -m /live "( udpsrc name=pay0 port=8554 caps=\"application/x-rtp,media=video,clock-rate=90000,encoding-name=H264,payload=96\" )"Copy to clipboard
- 在目标设备的同一控制台或其他控制台中运行 pipeline：

        gst-launch-1.0 -e qtivcomposer name=mixer sink_0::position="<0, 0>" sink_0::dimensions="<1280, 720>" sink_1::position="<590, 310>" sink_1::dimensions="<640, 360>" mixer. ! queue ! tee name=t_split t_split. ! queue ! video/x-raw,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/mux.mp4 t_split. ! queue ! video/x-raw,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse config-interval=-1 ! rtph264pay pt=96 ! udpsink host=<ip_address> port=8554 qtiqmmfsrc name=camsrc_0 camera=0 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer. qtiqmmfsrc name=camsrc_1 camera=1 ! video/x-raw, format=NV12, width=1280, height=720, framerate=30/1 ! mixer.Copy to clipboard
- 要停止用例，请按 CTRL + C。

    使用 `scp` 命令从设备中拉取录制的内容，然后在主机上播放这些内容。

        scp root@<IP address of target device>:/opt/ <destination directory>Copy to clipboard

您可以在媒体播放器上播放 MP4 文件。视频通过主机上的 RTSP 进行流传输。参见[在主机上查看 RTSP 流](https://docs.qualcomm.com/doc/80-70018-50SC/topic/camera-and-video-encode.html#one_stream_1080p_avc_rtsp_from_live_source__section_ayq_2nh_pyb)。

下图显示了 pipeline 执行流程：

Figure : 两路 720p 摄像头流的 pipeline - 画中画显示、编码并通过 RTSP 进行流传输
            
            ![](data:image/png;base64,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)

**Related Resources**  

- [多摄像头流传输](https://docs.qualcomm.com/doc/80-70018-50SC/topic/gst-multi-camera-stream-example.html)
- [使用 Python 的多摄像头流](https://docs.qualcomm.com/doc/80-70018-50SC/topic/multi-camera-streaming-python-sample-app.html)

Last Published: Nov 12, 2025

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