# Get the output of 4 cameras with SIPL **URL:** \ **Category:** DRIVE AGX Xavier General\ **Tags:** driveos-nvmedia\ **Created:** [May 13, 2021, 9:39pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898 "2021-05-13T21:39:45Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![shayan.manoochehri](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@shayan.manoochehri](https://forums.developer.nvidia.com/u/shayan.manoochehri)\ **Post date:** [May 13, 2021, 9:39pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/1 "2021-05-13T21:39:45Z")
Please provide the following info (check/uncheck the boxes after clicking “+ Create Topic”): **Software Version** DRIVE OS Linux 5.2.0 DRIVE OS Linux 5.2.0 and DriveWorks 3.5 NVIDIA DRIVE™ Software 10.0 (Linux) NVIDIA DRIVE™ Software 9.0 (Linux) other DRIVE OS version other **Target Operating System** Linux QNX other **Hardware Platform** NVIDIA DRIVE™ AGX Xavier DevKit (E3550) NVIDIA DRIVE™ AGX Pegasus DevKit (E3550) other **SDK Manager Version** 1.5.0.7774 other **Host Machine Version** native Ubuntu 18.04 other Hi. I’m using the SIPL API to get the output of 4 Sekonix cameras. I used the platform config hardcoded in the nvsipl sample since the platform config for SF3324\_CPHY\_x4 from the SIPL database doesn’t work. The nvSCI buffers from the SIPL completion queue contain the image from one camera. I mapped the buffers to CUDA and viewed the image to make sure. I want to get the output of all cameras. The ICP sample indicates that I should be getting a buffer with 4x the width of a single image. I think I need to set the number of virtual groups in ICP properly, however, the SIPL API doesn’t expose that. I suspect I need to change the platform config I’m using to match the hardware setup. I tried the obvious way, i.e. change numCameraModules from 1 to 4 and add more entries in cameraModuleInfoList, but it didn’t work. I’m shooting in the dark here. Does someone have a working configuration? Thanks. ---
**Author:** ![VickNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/vicknv/32/14043_2.png) [@VickNV](https://forums.developer.nvidia.com/u/VickNV)\ **Post date:** [May 14, 2021, 3:47pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/3 "2021-05-14T15:47:02Z")
Hi @shayan.manoochehri , Which sample application are you using? Can you start with 2 Sekonix cameras? Can you share the log of the error and the steps to reproduce the issue? Thanks. ---
**Author:** ![shayan.manoochehri](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@shayan.manoochehri](https://forums.developer.nvidia.com/u/shayan.manoochehri)\ **Post date:** [May 14, 2021, 4:16pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/4 "2021-05-14T16:16:37Z")
The sample I’m based on is /samples/nvmedia/nvsipl/test/sample/nvsipl\_sample This is the stock configuration. ``` static PlatformCfg platformCfg = { .platform = "SF3324_CPHY_x4", .platformConfig = "SF3324_CPHY_x4", .description = "SF3324 module in 4 lane CPHY mode", .numDeviceBlocks = 1U, .deviceBlockList = { { .csiPort = NVMEDIA_IMAGE_CAPTURE_CSI_INTERFACE_TYPE_CSI_AB, .phyMode = NVMEDIA_ICP_CSI_CPHY_MODE, .i2cDevice = 0U, .deserInfo = { .name = "MAX96712", #if !NV_IS_SAFETY .description = "Maxim 96712 Aggregator", #endif // !NV_IS_SAFETY .i2cAddress = 0x29 }, .numCameraModules = 1U, .cameraModuleInfoList = { { .name = "SF3324", #if !NV_IS_SAFETY .description = "Sekonix SF3324 module - 120-deg FOV, DVP AR0231-RCCB, MAX96705", #endif // !NV_IS_SAFETY .linkIndex = 0U, .serInfo = { .name = "MAX96705", #if !NV_IS_SAFETY .description = "Maxim 96705 Serializer", #endif // !NV_IS_SAFETY .i2cAddress = 0x40 }, .isEEPROMSupported = false, .eepromInfo = { }, .sensorInfo = { .id = SIPL_PIPELINE_ID, .name = "AR0231", #if !NV_IS_SAFETY .description = "OnSemi AR0231 Sensor", #endif // !NV_IS_SAFETY .i2cAddress = 0x10, .vcInfo = { .cfa = NVM_SURF_ATTR_COMPONENT_ORDER_CRBC, .embeddedTopLines = 24U, .embeddedBottomLines = 4U, .inputFormat = NVMEDIA_IMAGE_CAPTURE_INPUT_FORMAT_TYPE_RAW12, .resolution = { .width = 1920U, .height = 1208U }, .fps = 30.0, .isEmbeddedDataTypeEnabled = false }, .isTriggerModeEnabled = true } } } } } }; ``` I have no idea how to patch it to support two cameras. Here’s an example of what I tried. ``` static PlatformCfg platformCfg = { .platform = "SF3324_CPHY_x4", .platformConfig = "SF3324_CPHY_x4", .description = "SF3324 module in 4 lane CPHY mode", .numDeviceBlocks = 1U, .deviceBlockList = { { .csiPort = NVMEDIA_IMAGE_CAPTURE_CSI_INTERFACE_TYPE_CSI_AB, .phyMode = NVMEDIA_ICP_CSI_CPHY_MODE, .i2cDevice = 0U, .deserInfo = { .name = "MAX96712", #if !NV_IS_SAFETY .description = "Maxim 96712 Aggregator", #endif // !NV_IS_SAFETY .i2cAddress = 0x29 }, .numCameraModules = 2U, .cameraModuleInfoList = { { .name = "SF3324", #if !NV_IS_SAFETY .description = "Sekonix SF3324 module - 120-deg FOV, DVP AR0231-RCCB, MAX96705", #endif // !NV_IS_SAFETY .linkIndex = 0U, .serInfo = { .name = "MAX96705", #if !NV_IS_SAFETY .description = "Maxim 96705 Serializer", #endif // !NV_IS_SAFETY .i2cAddress = 0x40 }, .isEEPROMSupported = false, .eepromInfo = { }, .sensorInfo = { .id = SIPL_PIPELINE_ID, .name = "AR0231", #if !NV_IS_SAFETY .description = "OnSemi AR0231 Sensor", #endif // !NV_IS_SAFETY .i2cAddress = 0x10, .vcInfo = { .cfa = NVM_SURF_ATTR_COMPONENT_ORDER_CRBC, .embeddedTopLines = 24U, .embeddedBottomLines = 4U, .inputFormat = NVMEDIA_IMAGE_CAPTURE_INPUT_FORMAT_TYPE_RAW12, .resolution = { .width = 1920U, .height = 1208U }, .fps = 30.0, .isEmbeddedDataTypeEnabled = false }, .isTriggerModeEnabled = true } }, { .name = "SF3324", #if !NV_IS_SAFETY .description = "Sekonix SF3324 module - 120-deg FOV, DVP AR0231-RCCB, MAX96705", #endif // !NV_IS_SAFETY .linkIndex = 1U, .serInfo = { .name = "MAX96705", #if !NV_IS_SAFETY .description = "Maxim 96705 Serializer", #endif // !NV_IS_SAFETY .i2cAddress = 0x40 }, .isEEPROMSupported = false, .eepromInfo = { }, .sensorInfo = { .id = 1, .name = "AR0231", #if !NV_IS_SAFETY .description = "OnSemi AR0231 Sensor", #endif // !NV_IS_SAFETY .i2cAddress = 0x10, .vcInfo = { .cfa = NVM_SURF_ATTR_COMPONENT_ORDER_CRBC, .embeddedTopLines = 24U, .embeddedBottomLines = 4U, .inputFormat = NVMEDIA_IMAGE_CAPTURE_INPUT_FORMAT_TYPE_RAW12, .resolution = { .width = 1920U, .height = 1208U }, .fps = 30.0, .isEmbeddedDataTypeEnabled = false }, .isTriggerModeEnabled = true } } } } } }; ``` Output. ``` MAX96712: Revision 2 detected MAX96712: Enable periodic AEQ on Link 0 MAX96705: Pre-emphasis set to 0xaa MAX96705: Revision 1 detected! Sensor AR0231 RCCB Rev7 detected! MAX96712: Enable periodic AEQ on Link 1 MAX96705: Pre-emphasis set to 0xaa MAX96705: Revision 1 detected! Sensor AR0231 RCCB Rev7 detected! nvsipl_sample: CNvMCamera.cpp: 458: Init: Incorrect pipeline state:0 for pipeline:1 nvsipl_sample: ERROR: INvSIPLCamera::Init() failed, status: 6 nvsipl_sample: CNvMCamera.cpp: 1088: Deinit: Incorrect pipeline state:1 for pipeline:0 nvsipl_sample: CNvMCamera.cpp: 48: ~CNvMCamera: CNvMCamera object fails to deinit nvsipl_sample: ERROR: Unexpected output type nvsipl_sample: ERROR: Unexpected output type ``` ---
**Author:** ![VickNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/vicknv/32/14043_2.png) [@VickNV](https://forums.developer.nvidia.com/u/VickNV)\ **Post date:** [May 17, 2021, 3:14pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/5 "2021-05-17T15:14:46Z")
Please refer to --link-enable-masks switch of [nvsipl\_camera](https://docs.nvidia.com/drive/drive-os-5.2.0.0L/drive-os/index.html#page/DRIVE_OS_Linux_SDK_Development_Guide/NvMedia/nvmedia_nvsipl_camera.html#) sample application and its source code (under /nvidia/nvidia\_sdk/DRIVE\_OS\_5.2.0\_SDK\_Linux\_OS\_DDPX/DRIVEOS/drive-t186ref-linux/samples/nvmedia/nvsipl/test/camera). Thanks. ---
**Author:** ![shayan.manoochehri](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@shayan.manoochehri](https://forums.developer.nvidia.com/u/shayan.manoochehri)\ **Post date:** [May 17, 2021, 5:10pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/6 "2021-05-17T17:10:33Z")
Thanks. I tried specifying the mask in the platform config and it didn’t work. I give up. I switched to the DriveWorks API. ---
**Author:** ![VickNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/vicknv/32/14043_2.png) [@VickNV](https://forums.developer.nvidia.com/u/VickNV)\ **Post date:** [May 17, 2021, 8:06pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/7 "2021-05-17T20:06:53Z")
If you change your mind and need our help on NvMedia API again, let us know. Thanks. ---
**Author:** ![TomNVIDIA](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/tomnvidia/32/14181_2.png) [@TomNVIDIA](https://forums.developer.nvidia.com/u/TomNVIDIA)\ **Post date:** [October 12, 2021, 8:03pm UTC](https://forums.developer.nvidia.com/t/get-the-output-of-4-cameras-with-sipl/177898/8 "2021-10-12T20:03:35Z")