Adding VPC outputs to a flow

A VPC output goes to a virtual private cloud (VPC) that you created using Amazon Virtual Private Cloud.

For transport stream flows, you can add outputs (up to 50) even if the flow is active. For CDI flows, you can add outputs (up to 10) only if the flow is in standby mode. For optimal performance, follow the guidance offered in Best practices.

To add a VPC output to a flow (console)

1. Open the MediaConnect console at https://console.aws.amazon.com/mediaconnect/.

2. On the Flows page, choose the name of the flow that you want to add an output to.

   The details page for that flow appears.

3. Choose the Outputs tab.

4. Choose Add output.

5. For Name, specify a name for your output. This value is an identifier that is visible only on the AWS Elemental MediaConnect console and is not visible to the end user.

6. For Output type, choose VPC output.

7. For Protocol, choose the appropriate protocol.

8. For Description, enter a description that will remind you later where this output is going. This might be the company name or notes about the setup.

9. Determine which protocol you want to use for the output. The protocol options are dependent on the flow type.

   • For transport stream flows, the protocol options are: RTP, RTP-FEC, RIST, SRT, and Zixi.

   • For CDI flows, the protocol options are: CDI and ST 2110 JPEG XS.

10. For specific instructions based on the protocol that you want to use, choose one of the following tabs:

    RIST

    1. For Protocol, choose RIST.

    2. For IP address, choose the IP address where you want to send the output.

    3. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

       Note

       The RIST protocol requires one additional port for error correction. To accommodate this requirement, AWS Elemental MediaConnect reserves the port that is +1 from the port that you specify. For example, if you specify port 4000 for the output, the service assigns ports 4000 and 4001.

    4. For Smoothing latency, specify the additional delay that you want to use with output smoothing. We recommend that you specify a value of 0 ms to disable smoothing. However, if the receiver can't process the stream properly, specify a value between 100 and 1,000 ms. This way, AWS Elemental MediaConnect attempts to correct jitter from the flow source. If you keep this field blank, the service uses the default value of 0 ms.

    5. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    RTP or RTP-FEC

    1. For Protocol, choose RTP or RTP-FEC.

       Note

       RTP and RTP-FEC outputs are compliant with the SMPTE 2022-7 standard. If your downstream receiver supports 2022-7 source merging, RTP and RTP-FEC outputs will be compatible.

    2. For IP address, choose the IP address where you want to send the output.

    3. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

       Note

       The RTP-FEC protocol requires two additional ports for error correction. To accommodate this requirement, AWS Elemental MediaConnect reserves the ports that are +2 and +4 from the port that you specify. For example, if you specify port 4000 for the output, the service assigns ports 4000, 4002, and 4004.

    4. For Smoothing latency, specify the additional delay that you want to use with output smoothing. We recommend that you specify a value of 0 ms to disable smoothing. However, if the receiver can't process the stream properly, specify a value between 100 and 1,000 ms. This way, AWS Elemental MediaConnect attempts to correct jitter from the flow source. If you keep this field blank, the service uses the default value of 0 ms.

    5. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    SRT listener

    1. For Name, specify a name for your source. This value is an identifier that is visible only on the MediaConnect console. It is not visible to anyone outside of the current AWS account.

    2. For Output type, select VPC output.

    3. For Protocol, choose SRT listener.

    4. For Description, enter a description that can help you distinguish one output from another. This might be the company name or notes about the setup.

    5. For Minimum latency, specify the minimum size of the buffer (delay) that you want the service to maintain. A higher latency value means a longer delay in transmitting the stream, but more room for error correction. A lower latency value means a shorter delay, but less room for error correction. You can choose a value from 10–15,000 ms. If you keep this field blank, MediaConnect uses the default value of 2,000 ms.

       The SRT protocol uses a minimum latency configuration on each side of the connection. The larger of these two values is used as the recovery latency. If the transmitted bitrate, multiplied by the recovery latency, is higher than the receiver buffer, the buffer will overflow and the stream can fail with a Buffer Overflow Error. On the SRT receiver side, the receiver buffer is configured by the SRTO_RCVBUF value. The size of the receiver buffer is limited by the flow control window size (SRTO_FC) value. On the MediaConnect side, the receiver buffer is calculated as the maximum bitrate value multiplied by the minimum latency value. For more information about the SRT buffer, see the SRT Configuration Guidelines.

    6. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

    7. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    8. If you want to encrypt the video as it is sent to this output, do the following:

       1. In the Encryption section, choose Enable.

       2. For Role ARN, specify the ARN of the role that you created when you set up encryption.

       3. For Secret ARN, specify the ARN that AWS Secrets Manager assigned when you created the secret to store the SRT password.

    SRT caller

    1. For Name, specify a name for your source. This value is an identifier that is visible only on the MediaConnect console. It is not visible to anyone outside of the current AWS account.

    2. For Output type, select VPC output.

    3. For Protocol, choose SRT caller.

    4. For Description, enter a description that can help you distinguish one output from another. This might be the company name or notes about the setup.

    5. For Minimum latency, specify the minimum size of the buffer (delay) that you want the service to maintain. A higher latency value means a longer delay in transmitting the stream, but more room for error correction. A lower latency value means a shorter delay, but less room for error correction. You can choose a value from 10–15,000 ms. If you keep this field blank, MediaConnect uses the default value of 2,000 ms.

       The SRT protocol uses a minimum latency configuration on each side of the connection. The larger of these two values is used as the recovery latency. If the transmitted bitrate, multiplied by the recovery latency, is higher than the receiver buffer, the buffer will overflow and the stream can fail with a Buffer Overflow Error. On the SRT receiver side, the receiver buffer is configured by the SRTO_RCVBUF value. The size of the receiver buffer is limited by the flow control window size (SRTO_FC) value. On the MediaConnect side, the receiver buffer is calculated as the maximum bitrate value multiplied by the minimum latency value. For more information about the SRT buffer, see the SRT Configuration Guidelines.

    6. For Destination IP address, enter the IP address or domain of the output's destination.

    7. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

    8. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    9. If you want to encrypt the video as it is sent to this output, do the following:

       1. In the Encryption section, choose Enable.

       2. Encryption type will not be selectable. Srt-password is the only available encryption for this protocol.

       3. For Role ARN, specify the ARN of the role that you created when you set up encryption.

       4. For Secret ARN, specify the ARN that AWS Secrets Manager assigned when you created the secret to store the SRT password.

    Zixi push

    1. For Protocol, choose Zixi push.

    2. For IP address, choose the IP address where you want to send the output.

    3. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

    4. For Stream ID, enter the stream ID that is set in the Zixi receiver.

       Important

       If you keep this field blank, the service uses the output name as the stream ID. Because the stream ID must match the value set in the Zixi receiver, you must specify the stream ID if it is not exactly the same as the output name.

    5. For Maximum latency, specify the size of the buffer (delay) that you want the service to maintain. A higher latency value means a longer delay in transmitting the stream, but more room for error correction. A lower latency value means a shorter delay, but less room for error correction. You can choose a value between 0 and 60,000 ms. If you keep this field blank, the service uses the default value of 6,000 ms.

    6. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    7. If you want to encrypt the video as it is sent to this output, do the following:

       1. In the Encryption section, choose Enable.

       2. For Encryption type, choose Static key.

       3. For Role ARN, specify the ARN of the role that you created when you set up encryption.

       4. For Secret ARN, specify the ARN that AWS Secrets Manager assigned when you created the secret to store the encryption key.

       5. For Encryption algorithm, choose the type of encryption that you want to use to encrypt the source.

    Fujitsu-QoS

    1. For Protocol, choose Fujitsu-QoS.

    2. For Port, choose the port on which to exchange control packets with the receiver. For more information about ports, see Output destinations.

    3. For Output to VPC, choose the name of the VPC interface that you want to send your output to.

    CDI

    1. For Protocol, choose CDI.

    2. For IP address, choose the IP address where you want to send the output.

    3. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

    4. For VPC interface, choose the name of the VPC interface that you want to send your output to.

    5. For each media stream that you want to send as part of the output, do the following:

       1. For Media stream name, choose the name of the media stream. You can only add the media streams that the source on your flow uses.

       2. For Encoding name, confirm the default value, which is pre-selected based on the media stream type.

       3. For FMT, specify the format type number (sometimes referred to as RTP payload type) of the media stream. This value should be in a format that the receiver recognizes.

    ST 2110 JPEG XS

    1. For Protocol, choose ST 2110 JPEG XS.

    2. For VPC interface 1, choose one of the VPC interfaces that you want to send content to and then choose the specific IP address where you want to send the output.

    3. For VPC interface 2, choose a second VPC interface that you want to send content to and then choose the specific IP address where you want to send the output. There is no priority between VPC interfaces 1 and 2.

    4. For each media stream that you want to send as part of the output, do the following:

       1. For Media stream name, choose the name of the media stream. You can only add the media streams that the source on your flow uses.

       2. For Encoding name, choose the format that was used to encode the data.

          • For ancillary data streams, set the encoding name to smpte291.

          • For audio streams, set the encoding name to pcm.

          • For video, set the encoding name to jxsv.

       3. For Port, choose the port that you want to use when the content is distributed to this output. For more information about ports, see Output destinations.

       4. For Encoder profile, choose a setting for the compression. This property only applies if the source uses the CDI protocol.

       5. For Compression factor, specify a value that you want the service to use when calculating the compression for the output. Valid values are floating point numbers in the range of 3.0 to 10.0, inclusive The bitrate of the output is calculated as follows:

          Output bitrate = (1 / compressionFactor) * (source bitrate)

          This property only applies if the source uses the CDI protocol.

    5. Choose Add output.