Graph fragments

Higher-level reusable Graph fragments composed of multiple nodes. More...

Classes Index

struct	HttpMjpegDecodedInputOptions
	Configuration for HttpMjpegDecodedInput. More...

struct	ImageInputGroupOptions
	Configuration for ImageInputGroup. More...

struct	InferOptions
	Tunables for the preprocess and combined-infer Graph fragments. More...

struct	RtspDecodedInputOptions
	Configuration for RtspDecodedInput. More...

struct	RtspEncodedInputOptions
	Configuration for RtspEncodedInput. More...

struct	UdpH264OutputGroupOptions
	Configuration for UdpH264OutputGroup. More...

struct	UdpOutputGroupGOptions
	Configuration for UdpOutputGroupG. More...

struct	VideoInputGroupOptions
	Configuration for VideoInputGroup. More...

Functions Index

OutputSpec	HttpMjpegDecodedInputOutputSpec (const HttpMjpegDecodedInputOptions &opt)
	Project a HttpMjpegDecodedInputOptions into the OutputSpec the fragment will advertise. More...

OutputSpec	ImageInputGroupOutputSpec (const ImageInputGroupOptions &opt)
	Project an ImageInputGroupOptions into the OutputSpec the fragment will advertise. More...

OutputSpec	RtspEncodedInputOutputSpec (const RtspEncodedInputOptions &opt)
	Project a RtspEncodedInputOptions into the OutputSpec the fragment will advertise. More...

OutputSpec	RtspDecodedInputOutputSpec (const RtspDecodedInputOptions &opt)
	Project an RtspDecodedInputOptions into the OutputSpec the fragment will advertise. More...

OutputSpec	VideoInputGroupOutputSpec (const VideoInputGroupOptions &opt)
	Project a VideoInputGroupOptions into the OutputSpec the fragment will advertise. More...

simaai::neat::Graph	HttpMjpegDecodedInput (const HttpMjpegDecodedInputOptions &opt)
	Build the HTTP MJPEG input Graph: HTTP source, multipart demux, JPEG parse, decode. More...

simaai::neat::Graph	ImageInputGroup (const ImageInputGroupOptions &opt)
	Build an image-input Graph: file source, decoder, and imagefreeze to a video stream. More...

simaai::neat::Graph	preprocessing (const std::string &tar_gz, const InferOptions &opt={})
	Build the preprocess Graph fragment for a model, given a model archive path. More...

simaai::neat::Graph	simple_infer (const std::string &tar_gz)
	Build a single-stage MLA-inference Graph fragment from a model archive, with default options. More...

simaai::neat::Graph	postprocessing (const std::string &tar_gz)
	Build the postprocess Graph fragment for a model, given a model archive path. More...

simaai::neat::Graph	infer (const std::string &tar_gz)
	Build the current inference-only Graph fragment from a model archive. More...

simaai::neat::Graph	infer (const std::string &tar_gz, const InferOptions &opt)
	Build the current inference-only Graph fragment with explicit options. More...

simaai::neat::Graph	Preprocess (const simaai::neat::Model &model)
	Build the preprocess Graph fragment from an already-parsed Model. More...

simaai::neat::Graph	MLA (const simaai::neat::Model &model)
	Build the MLA-inference Graph fragment from an already-parsed Model. More...

simaai::neat::Graph	Postprocess (const simaai::neat::Model &model)
	Build the postprocess Graph fragment from an already-parsed Model. More...

simaai::neat::Graph	Infer (const simaai::neat::Model &model)
	Build the current inference-only Graph fragment from an already-parsed Model. More...

simaai::neat::Graph	RtspDecodedInput (const RtspDecodedInputOptions &opt)
	Build the live-RTSP input Graph: source, depayload+parse, hardware decode. More...

simaai::neat::Graph	RtspEncodedInput (const RtspEncodedInputOptions &opt)
	Build the live-RTSP encoded input Graph. More...

simaai::neat::Graph	UdpH264OutputGroup (const UdpH264OutputGroupOptions &opt)
	Build a Graph that H.264-encodes, RTP-packetizes, and sends frames over UDP. More...

simaai::neat::Graph	UdpOutputGroupG (const UdpOutputGroupGOptions &opt)
	Build a Graph that renders, encodes, and sends frames over UDP. More...

simaai::neat::Graph	VideoInputGroup (const VideoInputGroupOptions &opt)
	Build the video-file input Graph: file source, demux, H.264 parse, hardware decode. More...

Description

Higher-level reusable Graph fragments composed of multiple nodes.

Functions

HttpMjpegDecodedInput()

simaai::neat::Graph simaai::neat::nodes::groups::HttpMjpegDecodedInput (const HttpMjpegDecodedInputOptions & opt)

Build the HTTP MJPEG input Graph: HTTP source, multipart demux, JPEG parse, decode.

Typical chain: souphttpsrc -> multipartdemux -> jpegparse -> SiMa native MJPEG decoder -> optional videoconvert / videoscale.

Parameters

opt	Configuration (URL, source/framing options, decoder output, caps).

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: RtspDecodedInput

See Also: SimaDecode

Definition at line 89 of file HttpMjpegDecodedInput.h.

HttpMjpegDecodedInputOutputSpec()

OutputSpec simaai::neat::nodes::groups::HttpMjpegDecodedInputOutputSpec (const HttpMjpegDecodedInputOptions & opt)

Project a HttpMjpegDecodedInputOptions into the OutputSpec the fragment will advertise.

Parameters

opt	HTTP MJPEG group options (url, framing, decoder, output caps).

Returns: Negotiated downstream caps for this configuration.

Definition at line 35 of file GroupOutputSpec.h.

ImageInputGroup()

simaai::neat::Graph simaai::neat::nodes::groups::ImageInputGroup (const ImageInputGroupOptions & opt)

Build an image-input Graph: file source, decoder, and imagefreeze to a video stream.

Typical chain: FileInput -> image decoder (decodebin / jpegdec / pngdec / SiMa decoder) -> optional videoconvert/videorate/videoscale -> imagefreeze with the configured output caps. Use this when a Graph should be driven by a single still image rather than a live or file-based video source.

Parameters

opt	Configuration controlling source path, decoder backend, and output caps.

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: VideoInputGroup

See Also: RtspDecodedInput

Definition at line 99 of file ImageInputGroup.h.

ImageInputGroupOutputSpec()

OutputSpec simaai::neat::nodes::groups::ImageInputGroupOutputSpec (const ImageInputGroupOptions & opt)

Project an ImageInputGroupOptions into the OutputSpec the fragment will advertise.

Parameters

opt	Image-input group options (path, decoder, output caps).

Returns: Negotiated downstream caps for this configuration.

Definition at line 43 of file GroupOutputSpec.h.

infer()

simaai::neat::Graph simaai::neat::nodes::groups::infer (const std::string & tar_gz)

Build the current inference-only Graph fragment from a model archive.

Parameters

tar_gz

Path to the .tar.gz model archive.

Definition at line 82 of file ModelGroups.h.

infer()

simaai::neat::Graph simaai::neat::nodes::groups::infer (const std::string & tar_gz, const InferOptions & opt)

Build the current inference-only Graph fragment with explicit options.

Parameters

tar_gz	Path to the .tar.gz model archive.
opt	Preprocess tunables propagated into the chain.

Definition at line 90 of file ModelGroups.h.

Infer()

simaai::neat::Graph simaai::neat::nodes::groups::Infer (const simaai::neat::Model & model)

Build the current inference-only Graph fragment from an already-parsed Model.

Parameters

model

The parsed model.

Definition at line 118 of file ModelGroups.h.

MLA()

simaai::neat::Graph simaai::neat::nodes::groups::MLA (const simaai::neat::Model & model)

Build the MLA-inference Graph fragment from an already-parsed Model.

Parameters

model

The parsed model.

Definition at line 104 of file ModelGroups.h.

Postprocess()

simaai::neat::Graph simaai::neat::nodes::groups::Postprocess (const simaai::neat::Model & model)

Build the postprocess Graph fragment from an already-parsed Model.

Parameters

model

The parsed model.

Definition at line 111 of file ModelGroups.h.

postprocessing()

simaai::neat::Graph simaai::neat::nodes::groups::postprocessing (const std::string & tar_gz)

Build the postprocess Graph fragment for a model, given a model archive path.

Parameters

tar_gz

Path to the .tar.gz model archive.

Definition at line 75 of file ModelGroups.h.

Preprocess()

simaai::neat::Graph simaai::neat::nodes::groups::Preprocess (const simaai::neat::Model & model)

Build the preprocess Graph fragment from an already-parsed Model.

Parameters

model

The parsed model.

Definition at line 97 of file ModelGroups.h.

preprocessing()

simaai::neat::Graph simaai::neat::nodes::groups::preprocessing (const std::string & tar_gz, const InferOptions & opt={})

Build the preprocess Graph fragment for a model, given a model archive path.

Parameters

tar_gz	Path to the .tar.gz model archive.
opt	Preprocess tunables (color format, normalization, queueing).

Definition at line 60 of file ModelGroups.h.

RtspDecodedInput()

simaai::neat::Graph simaai::neat::nodes::groups::RtspDecodedInput (const RtspDecodedInputOptions & opt)

Build the live-RTSP input Graph: source, depayload+parse, hardware decode.

Typical H.264 chain: RtspEncodedInput(H264) -> SimaDecode(H264). Typical MJPEG chain: RtspEncodedInput(MJPEG) -> SimaDecode(MJPEG).

Parameters

opt	Configuration (URL, transport, parser fallback caps, decoder output).

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: RtspEncodedInput

See Also: SimaDecode

Definition at line 108 of file RtspDecodedInput.h.

RtspDecodedInputOutputSpec()

OutputSpec simaai::neat::nodes::groups::RtspDecodedInputOutputSpec (const RtspDecodedInputOptions & opt)

Project an RtspDecodedInputOptions into the OutputSpec the fragment will advertise.

Parameters

opt	RTSP-input group options (url, latency, decoder, output caps).

Returns: Negotiated downstream caps for this configuration.

Definition at line 59 of file GroupOutputSpec.h.

RtspEncodedInput()

simaai::neat::Graph simaai::neat::nodes::groups::RtspEncodedInput (const RtspEncodedInputOptions & opt)

Build the live-RTSP encoded input Graph.

H.264 chain: rtspsrc -> RTP H.264 depay/parse -> optional H.264 caps fixup. MJPEG chain: rtspsrc -> RTP JPEG depay -> jpegparse.

Parameters

opt	Configuration for source, transport, queueing, and codec framing.

Returns: Configured Graph ready to be add()ed to another Graph.

See Also: RtspDecodedInput

See Also: SimaDecode

Definition at line 70 of file RtspEncodedInput.h.

RtspEncodedInputOutputSpec()

OutputSpec simaai::neat::nodes::groups::RtspEncodedInputOutputSpec (const RtspEncodedInputOptions & opt)

Project a RtspEncodedInputOptions into the OutputSpec the fragment will advertise.

Parameters

opt	RTSP encoded-input group options (url, latency, codec framing).

Returns: Encoded caps for this configuration.

Definition at line 51 of file GroupOutputSpec.h.

simple_infer()

simaai::neat::Graph simaai::neat::nodes::groups::simple_infer (const std::string & tar_gz)

Build a single-stage MLA-inference Graph fragment from a model archive, with default options.

Parameters

tar_gz

Path to the .tar.gz model archive.

Definition at line 68 of file ModelGroups.h.

UdpH264OutputGroup()

simaai::neat::Graph simaai::neat::nodes::groups::UdpH264OutputGroup (const UdpH264OutputGroupOptions & opt)

Build a Graph that H.264-encodes, RTP-packetizes, and sends frames over UDP.

Typical chain: H.264 encoder -> RTP H.264 payloader -> udpsink. Use as the tail of a Graph that should broadcast its rendered output as RTP/H.264 over UDP.

Parameters

opt	Encoder, RTP, and UDP-sink configuration.

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: UdpOutputGroupG

See Also: ImageToH264RtspGroup

Definition at line 53 of file UdpH264OutputGroup.h.

UdpOutputGroupG()

simaai::neat::Graph simaai::neat::nodes::groups::UdpOutputGroupG (const UdpOutputGroupGOptions & opt)

Build a Graph that renders, encodes, and sends frames over UDP.

More flexible counterpart to UdpH264OutputGroup: accepts a render-stage configuration string and explicit encoder geometry, then mux/packetize and send to the configured UDP endpoint.

Parameters

opt	Render, encoder, and UDP-sink configuration.

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: UdpH264OutputGroup

Definition at line 58 of file UdpOutputGroupG.h.

VideoInputGroup()

simaai::neat::Graph simaai::neat::nodes::groups::VideoInputGroup (const VideoInputGroupOptions & opt)

Build the video-file input Graph: file source, demux, H.264 parse, hardware decode.

Typical chain: FileInput -> decodebin/demuxer -> H264Parse -> SiMa hardware H.264 decoder -> optional videoconvert / videoscale. Use this as the head of a Graph that runs against a recorded video file.

Parameters

opt	Configuration (path, parser tunables, decoder output, caps).

Returns: The configured Graph ready to be add()ed to a Graph.

See Also: RtspDecodedInput

See Also: H264Parse

Definition at line 78 of file VideoInputGroup.h.

VideoInputGroupOutputSpec()

OutputSpec simaai::neat::nodes::groups::VideoInputGroupOutputSpec (const VideoInputGroupOptions & opt)

Project a VideoInputGroupOptions into the OutputSpec the fragment will advertise.

Parameters

opt	Video-file-input group options (path, parse config, output caps).

Returns: Negotiated downstream caps for this configuration.

Definition at line 67 of file GroupOutputSpec.h.

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Classes Index​

Functions Index​

Description​

Functions​

HttpMjpegDecodedInput()​

HttpMjpegDecodedInputOutputSpec()​

ImageInputGroup()​

ImageInputGroupOutputSpec()​

infer()​

infer()​

Infer()​

MLA()​

Postprocess()​

postprocessing()​

Preprocess()​

preprocessing()​

RtspDecodedInput()​

RtspDecodedInputOutputSpec()​

RtspEncodedInput()​

RtspEncodedInputOutputSpec()​

simple_infer()​

UdpH264OutputGroup()​

UdpOutputGroupG()​

VideoInputGroup()​

VideoInputGroupOutputSpec()​

Classes Index

Functions Index

Description

Functions

HttpMjpegDecodedInput()

HttpMjpegDecodedInputOutputSpec()

ImageInputGroup()

ImageInputGroupOutputSpec()

infer()

infer()

Infer()

MLA()

Postprocess()

postprocessing()

Preprocess()

preprocessing()

RtspDecodedInput()

RtspDecodedInputOutputSpec()

RtspEncodedInput()

RtspEncodedInputOutputSpec()

simple_infer()

UdpH264OutputGroup()

UdpOutputGroupG()

VideoInputGroup()

VideoInputGroupOutputSpec()