The RIST output can be push streams or have them pulled to/from a RIST-enabled device. RIST seeks to provide reliable, high performance media transport by using UDP at the transport layer to avoid the inefficiencies of TCP, then layering on top Forward Error Correction and Retransmits to add the reliability inherently absent from UDP.
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- In the Zixi Broadcaster Outputs page, click
. The New output window is displayed.
- Select the RIST option (radio button).
- Type in the unique identifier for this output in the Output Name.
- Select an Input Stream to be made available on this output from the drop-down list.
- Select the Show in Matrix check box to display this stream in the Matrix (see Using the Matrix). Default: Selected.
- Specify the Output parameters (see Output Stream Parameters Table).
- Click OK.
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| Parameter | Description | ||
|---|---|---|---|
| Output Parameters | |||
| Profile | Select one of the following RIST profiles that matches the input stream:
| ||
| Type (Main Profile) | Select the stream direction:
| ||
| Host | Specify the destination IP address or URL of the host to which the steam will be pushed. | ||
| Port | Specify the target UDP port. | ||
TTL | Specify the time-to-live (TTL). Used mainly to limit the range (or “scope”) of a multicast transmission. Leaving it as blank uses the default value specified by the operating system. | ||
Smoothing [mms] | Enables transmission of the output at the correct rate. Required when the receiving device is sensitive and can’t lock on to the stream (in such a case, the recommended latency is 100 - 1000 ms). | ||
| SMPTE-2022 FEC | In the SMPTE-2022 FEC standard, 1-D and 2-D parity codes are systematic FEC codes of decent complexity that provide protection against bursty or random losses.
To enable SMPTE-2022 FEC (Forward Error Correction) select one of the following parity options from the drop-down menu:
| ||
| Bind to IP | Select from the drop-down list the local IP address to be used for this Input, OR select Any to enable any IP to be used. | ||
Local Port | Specify from which local port to source the stream, if desired (instead of randomly chosen by the operating system). | ||
| RIST main profile parameters | |||
Use DTLS | Select this option to connect using DTLS, which offers authentication and encryption. | ||
Ignore TLS certificate errors | Select this option when streaming to a trusted server that does not have a valid certificate. | ReMuxingWhen this option is selected, Zixi Broadcaster will ignore the TLS certificate errors and transmit the stream to its destination. | |
User | Enter the authentication credentials | ||
Password | Enter the authentication credentials | ||
Billing Codes | Billing codes are used to identify and differentiate traffic on a Zixi Broadcaster for billing purposes. When a billing code is added to a Source or Target, Zixi can track the traffic on that Broadcaster input or output separately from other inputs and outputs on the same Broadcaster. Billing codes are created by Zixi personnel on the Zixi Customer Portal for a particular organization. | ||
Billing Code | Enter the billing code that corresponds to this stream. The relevant billing can be obtained from the organization that received the billing code from Zixi. | ||
Billing Password | Enter the password that corresponds to this billing code. | ||
| Remultiplex/Pad | Select this checkbox to enable remuxing enable remuxing from VBR MPEG-TS to MPEG-TS TS CBR (used for professional IRDs) or padding with null packets. | Remux to||
Mode | Select one of the following:
| ||
Target bitrate [kbps] : | Specify the CBR bitrate to target for a remuxed stream. | ||
| Buffer Size [ms] | Specify the size of the buffer that will be used for the remixing. A larger buffer increases the quality, but also increases latency. | ||
| No NULL Packets | Select this option to re-multiplex the stream to CBR but remove the NULL packets in order to maintain low bitrate the padded stream (Pad) or a re-multiplexed stream (remultiplex). | ||
| Enable Decryption | Select this checkbox to decrypt an encrypted stream. | ||
Decryption type | If the stream has been encrypted, you can decrypt through the output by selecting this checkbox and specifying the type of ecryption encryption that was used. Select Automatic to decrypt a stream that has been encrypted using Automatic encryption. Only if the stream has not been encrypted, select None (default). Important Notice: if the stream has been encrypted you must decrypt it in the output. | ||
| Decryption key | If the decryption type includes a key, enter the key to decrypt the stream during output. | ||
| Enable IFB/Talkback | Select this checkbox to enable IFB/Talkback for one-way communication from the director or assistant director to on-air talent or a remote location. Selecting the checkbox allows the decoder with a Zixi Receiver to send audio back to the encoder with a Zixi Feeder. This offers the ability to, for example, give audio feedback to the camera operator. | ||
| Port | The port that will be used to send the audio feedback. |
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