Gst-nvds3dmixer

The Gst-nvds3dmixer plugin is a customizable plugin which provides a custom library interface to load compoment ds3d::datamixer.

nvds3dmixer mix buffers from N input pads into one output pad.

The Plugin is fully configured through YAML format content or file.

Gst-nvds3dmixer properties Specifications

Gst-nvds3dmixer 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::datamixer from custom_lib_path. Create this datamixer by custom_create_function.

Supported DS3D Data mixers

DS3D Data mixers
SL	Data mixer	Data mixer custom library
1	DS3D Data mixer. Mix buffers from N input pads into one output pad.	`libnvds_3d_multisensor_mixer.so`

Custom low level library: `libnvds_3d_multisensor_mixer.so`

Mix buffers from N input pads into one output pad.

Inputs and Outputs

Inputs (support N input pads)
- ds3d/datamap
Control parameters
- config-file
- config-content
Output
- ds3d/datamap
sink_caps
- parsed from config-file: in_caps: ds3d/datamap.
src_caps
- parsed from config-file: out_caps: ds3d/datamap.
Example Inputs X 2 and Output

Video mixer example input and output
Input at sink_0	Input at sink_1	Output
GstBuffer with ds3d/datamap	GstBuffer with ds3d/datamap	GstBuffer with ds3d/datamap
{kVideoBridge2dData:value1}, {kVideoBridge2dData:value2}, …	{kLidarXYZI:value1}, {kLidarXYZI:value2}, …	{kVideoBridge2dData+0:value1}, {kVideoBridge2dData+0:value2}, {kLidarXYZI+1:value1}, {kLidarXYZI+1:value2}, …

Configuration file

Example:

name: multisensor_mixer
type: ds3d::datamixer
in_caps: ds3d/datamap
out_caps: ds3d/datamap
custom_lib_path: libnvds_3d_multisensor_mixer.so
custom_create_function: createMultiSensorMixer
config_body:
    #timeout in milliseconds;
    timeout: 50
    #force_sync == true will force mixer to wait for buffers from ALL inputs
    force_sync: true

Video mixer configuration options

Video mixer config_body
config-key	Description	Example value
timeout	Timeout dictates the regular time interval in which mixer algorithm will run. This configuration is in ms. This configuration can dictate the frame-rate at which mixer will produce mixed output datamap buffers.	Default: 33 ms
force_sync	Mixer will wait for ALL inputs to produce output. If true, the output framerate of mixer will be = slower of all the inputs. One may use this if all inputs are of equal frame-rate.	Default: false
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