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    NVIDIA DRIVE OS Linux SDK API Reference
    6.0.5 Release
    •All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Modules Pages
    Public Member Functions
    nvsipl::INvSIPLClient::INvSIPLNvMBuffer Class Referenceabstract

    Detailed Description

    Describes a SIPL buffer containing an NvSciBufObj.

    Definition at line 267 of file NvSIPLClient.hpp.

    Inheritance diagram for nvsipl::INvSIPLClient::INvSIPLNvMBuffer:
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    Collaboration diagram for nvsipl::INvSIPLClient::INvSIPLNvMBuffer:
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    Public Member Functions

    virtual NvSciBufObj GetNvSciBufImage () const =0
     Gets a handle to NvSciBufObj. More...
     
    virtual ImageMetaData const & GetImageData () const =0
     Gets an nvsipl::INvSIPLClient::ImageMetaData associated with NvSciBufObj. More...
     
    virtual ImageEmbeddedData const & GetImageEmbeddedData () const =0
     Gets an nvsipl::INvSIPLClient::ImageEmbeddedData this is the RAW data associated with the captured image from the sensor before it is parsed to ImageMetaData structure. More...
     
    virtual void AddRef ()=0
     Adds a reference. More...
     
    virtual SIPLStatus Release ()=0
     Release a reference. More...
     
    virtual SIPLStatus AddNvSciSyncPrefence (const NvSciSyncFence &prefence)=0
     Add an NvSciSync prefence. More...
     
    virtual SIPLStatus GetEOFNvSciSyncFence (NvSciSyncFence *postfence)=0
     Retrieve the latest NvSciSync EOF fence. More...
     

    Member Function Documentation

    ◆ AddNvSciSyncPrefence()

    virtual SIPLStatus nvsipl::INvSIPLClient::INvSIPLBuffer::AddNvSciSyncPrefence ( const NvSciSyncFence &  prefence)
    		pure virtualinherited

    Add an NvSciSync prefence.

    Add an NvSciSync prefence to be used with the next ISP or ICP operation. This function creates its own duplicate of the fence, so the caller must clear their copy of the fence by calling NvSciSyncFenceClear().

    Precondition
    None.
    Parameters
    [in]prefencePrefence to be added.

    AddNvSciSyncPrefence() originates the following SIPLStatus return values:

    Return values
    NVSIPL_STATUS_OKThe function succeeds.
    NVSIPL_STATUS_ERRORIf internal NvSci fence operations fail.
    SIPLStatusOther values of SIPLStatus are propagated.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: No
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ AddRef()

    virtual void nvsipl::INvSIPLClient::INvSIPLBuffer::AddRef ( )
    		pure virtualinherited

    Adds a reference.

    Adding a reference to the buffer ensures that this buffer is not re-used by the producer of the buffer.

    Precondition
    None.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes, with the following conditions:
        • There is no active release operation that results in the buffer available for re-use.
      • Re-entrant: No
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ GetEOFNvSciSyncFence()

    virtual SIPLStatus nvsipl::INvSIPLClient::INvSIPLBuffer::GetEOFNvSciSyncFence ( NvSciSyncFence *  postfence)
    		pure virtualinherited

    Retrieve the latest NvSciSync EOF fence.

    Retrieve the buffer's latest NvSciSync EOF fence associated with the engine's set NvSciSync EOF object. The caller must clear the returned fence by calling NvSciSyncFenceClear().

    Precondition
    None.
    Parameters
    [out]postfenceEOF fence being returned.

    GetEOFNvSciSyncFence() originates the following SIPLStatus return values:

    Return values
    NVSIPL_STATUS_OKThe function succeeds.
    NVSIPL_STATUS_ERRORIf internal NvSci fence operations fail.
    SIPLStatusOther values of SIPLStatus are propagated.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: Yes
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ GetImageData()

    virtual ImageMetaData const& nvsipl::INvSIPLClient::INvSIPLNvMBuffer::GetImageData ( ) const
    		pure virtual

    Gets an nvsipl::INvSIPLClient::ImageMetaData associated with NvSciBufObj.

    Returns
    A const reference to nvsipl::INvSIPLClient::ImageMetaData.
    Precondition
    None.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: Yes
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ GetImageEmbeddedData()

    virtual ImageEmbeddedData const& nvsipl::INvSIPLClient::INvSIPLNvMBuffer::GetImageEmbeddedData ( ) const
    		pure virtual

    Gets an nvsipl::INvSIPLClient::ImageEmbeddedData this is the RAW data associated with the captured image from the sensor before it is parsed to ImageMetaData structure.

    Precondition
    None.
    Returns
    A const reference to nvsipl::INvSIPLClient::ImageEmbeddedData.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: Yes
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ GetNvSciBufImage()

    virtual NvSciBufObj nvsipl::INvSIPLClient::INvSIPLNvMBuffer::GetNvSciBufImage ( ) const
    		pure virtual

    Gets a handle to NvSciBufObj.

    Precondition
    None.
    Returns
    A NvSciBufObj.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: Yes
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No

    ◆ Release()

    virtual SIPLStatus nvsipl::INvSIPLClient::INvSIPLBuffer::Release ( )
    		pure virtualinherited

    Release a reference.

    Once the reference has been released as many times as the reference was added, it implies that the user has finished working with the buffer and the buffer is available for re-use by SIPL.

    Precondition
    None.

    Release() originates the following SIPLStatus return values:

    Return values
    NVSIPL_STATUS_OKThe releasing operation succeeds.
    NVSIPL_STATUS_BAD_ARGUMENTIf the buffer is already released.
    SIPLStatusOther values of SIPLStatus are propagated.


    Usage considerations

    • Allowed context for the API call
      • Interrupt handler: No
      • Signal handler: No
      • Thread-safe: Yes
      • Re-entrant: No
      • Async/Sync: Sync
    • Required privileges: Yes, with the following conditions:
      • Grants: nonroot, allow
      • Abilities: public_channel
      • Application needs to have access to the SGIDs that SIPL depends on as mentioned in the NVIDIA DRIVE OS Safety Developer Guide
    • API group
      • Init: No
      • Runtime: Yes
      • De-Init: No
    The documentation for this class was generated from the following file:
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