Gst-nvds3dbridge

The Gst-nvds3dbridge plugin is a customizable plugin which provides a custom library interface to load compoment ds3d::databridge.

The Plugin is fully configured through YAML format content or file. sink_caps and src_caps is also configurable.

Gst-nvds3dbridge

Note

Support for 3D (DS3D data format) to 2D (video/x-raw NVMM) is not provided.

Gst-nvds3dbridge properties Specifications

Gst-nvds3dbridge Properties.

Properties

Description

Release

config-content

yaml config content

DS 7.0

config-file

yaml config file path

DS 7.0

Custom library Interfaces

The plugin parse the config file or content and set SinkCaps and SrcCaps. load a custom ds3d::databridge from custom_lib_path. Create this databridge by custom_create_function.

Supported DS3D Data bridges

DS3D Data bridges

SL

Data bridge

Data bridge custom library

1

Video data bridge; wraps NVMM video memory to ds3d/datamap

libnvds_3d_video_databridge.so

Custom low level library: libnvds_3d_video_databridge.so

Inputs and Outputs

  • Inputs

    • video/x-raw(memory:NVMM)

    • data format: NvBufSurface

    • with/without GStreamer metadata (including NvDsBatchMeta)

  • Control parameters

    • config-file

    • config-content

  • Output

    • ds3d/datamap

  • sink_caps

    • parsed from config-file: in_caps: video/x-raw(memory:NVMM).

  • src_caps

Configuration file

Example:
name: videobridge_2d_to_3d
type: ds3d::databridge
in_caps: video/x-raw(memory:NVMM)
out_caps: ds3d/datamap
custom_lib_path: libnvds_3d_video_databridge.so
custom_create_function: createVideoBridge2d3d
config_body:
    surface_to_image: True
    # wrap nvbufsurface into color frame of ds3d::Frame2DGuard
    output_image_key: DS3D::ColorFrame
    # convert NvDsObjectMeta into array of ds3d::Object2DBbox with ds3d::FrameGuard
    output_object2d_key: DS3D::Object2DBboxKey

Video bridge configuration options

Video bridge config_body

config-key

Description

Example value

surface_to_image
If True, Output_image_key will be used to add following entries to datamap.

  1. output_image_key: ds3d::Frame2DGuard (with frame_0 in NvBufSurface->surfaceList[0])

  2. output_image_key_%d: ds3d::Frame2DGuard (with frame_i in NvBufSurface->surfaceList[i])

True / False

output_image_key

The key name to use when generating datamap output. This name will be used to configure the input of downstream ds3d component.

DS3D::ColorFrame

output_object2d_key

The key name to use when generating datamap output. This key name will be used to save NvDsObjectMeta from NvDsBatchMeta as an array of ds3d::Object2DBbox.

DS3D::Object2DBboxKey