Stream metrics

Incoming and outgoing streams are reporting real-time connectivity metrics.

Incoming live signals

Metrics of incoming streams are accessible in the inspector of a selected signal within the Metrics expandable.

 

Outgoing live signals

Metrics of outgoing streams are accessible in the expandable and flyouts of any resource location or destination. Output signals of resource locations can be received by multiple takers. Takers are represented with their IPv6/IPv4 addresses. Clicking on a specific taker will change the displayed metrics and quality information.

1. Signal taker: Available taker with IPv6 address
2. Metrics: Metrics of the selected taker or routed signal if there 
3. Quality: Video and audio data of selected taker or routed signal

 

Real-time metrics

The metrics are shown in a compact component to gather fast knowledge about the health of a signal. The bars are showing the value per second.

1. Value: Unit is individual per metric.
2. Time span: Graph shows the last 110 sec.
3. Latest value: Current value.
4. Info: Short explaination of the metric.

Hint: The scaling does not always start at 0, due to a zoomed-in view to make significant changes visible e.g. for bitrate.

 

Metrics for incoming signals

Depending on the protocol used, the interface provides the following connection health metrics:

	RTMP Pull & Push	SRT Listener & Caller	Streamtag	HLS Pull	RTSP Pull
Bitrate Consolidated number of all received bytes per second
Framerate Frequency of still images captured per second per video PID
RTT Round-trip-time between the source and ingest point	-			-	-
Retransmission Resent packets, if they are damaged or lost	-			-	-
Packet Loss Percentage of data packets failed to reach the destination	-		-	-	-

Metrics for outgoing signals

	RTMP Push & Pull	SRT Listener & Caller	MPEG-TS via TCP Pull	HLS Push & Pull	Facebook	Twitch	YouTube
Bitrate Consolidated number of all bytes sent
RTT Round-Trip time between the output and receiver	-		-	-	-	-	-
Retransmission Resent packets, if they are damaged or lost	-		-	-	-	-	-
Packet loss Percentage of data packets failed to reach the destination	-		-	-	-	-	-

Video and audio information

Video/audio information for incoming signals

For incoming signals additional information on video and audio PIDs are provided within the inspector:

1. PID (Packet Identifier) e.g. Video #1
2. Video resolution
3. Video codec
4. Chroma subsampling →Learn more on Github
5. Colorimetry →Learn more on Wikipedia
6. Video bitrate
7. Audio codec
8. Audio channels
9. Audio sampling rate
10. Audio bitrate

Video/audio information for outgoing signals

Outgoing signals grant information about video and audio within the expandable on the stage. Only transcoded outputs will provide this information, the video and audio quality of passthrough outputs relies on the input signal.

1. Video resolution
2. GOP size in seconds
3. Audio bitrate
4. Video bitrate