Adding a VPC source to an existing MediaConnect flow - AWS Elemental MediaConnect

Adding a VPC source to an existing MediaConnect flow

You can add a second source to an existing transport stream flow for failover. Both sources on the flow must be binary identical (come from the same encoder) and they must use the same protocol. (However, you can have one source that uses RTP and the other that uses RTP-FEC.) For more information about source failover, see Source failover.

Important

Before you begin this procedure, make sure that the following steps have been completed:

MediaConnect doesn't support two sources on CDI flows. For redundancy with ST 2110 JPEG XS sources, you can specify two inbound VPC interfaces on an individual media stream. For redundancy with CDI sources, create a second flow.

To add a VPC source to an existing 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 update.

  3. Choose the Source tab.

  4. In the Source failover configuration section, choose Edit.

  5. In the Edit source failover configuration window, make sure that Failover is set to Enabled.

    Note

    If you enable failover on a flow that is running, you might encounter a brief interruption in the flow output.

  6. For Recovery window, specify the size of the buffer (delay) that you want the service to maintain. A larger buffer means a longer delay in transmitting the stream, but more room for error correction. A smaller buffer means a shorter delay, but less room for error correction. You can choose a value from 100–15000 ms. If you keep this field blank, MediaConnect uses the default value of 200 ms.

  7. Choose Update.

  8. In the Sources section, choose Add source.

  9. For Name, specify a name for your source. This value is an identifier that is visible only on the MediaConnect console.

  10. For Source type, choose VPC source.

  11. Determine which protocol your source uses.

    Note

    All sources on a flow must use the same protocol. However, you can have one source that uses RTP and the other that uses RTP-FEC.

  12. For specific instructions based on your protocol, choose one of the following tabs:

    RIST

    1. For Protocol, RIST will automatically be selected.

    2. For Inbound port, specify the port that the flow listens on for incoming content.

      Note

      The RIST protocol requires one additional port for error correction. To accommodate this requirement, 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.

    3. For VPC interface name, choose the name of the VPC interface that you want to use as the source.

    4. For Maximum bitrate, specify the maximum expected bitrate (in bits per second) for the flow. We recommend that you specify a value that is twice the actual bitrate.

    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 from 1–15,000 ms. If you keep this field blank, MediaConnect uses the default value of 2,000 ms.

    RTP or RTP-FEC

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

    2. For Inbound port, specify the port that the flow listens on for incoming content.

      Note

      The RTP-FEC protocol requires two additional ports for error correction. To accommodate this requirement, 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.

    3. For VPC interface name, choose the name of the VPC interface that you want to use as the source.

    4. For Maximum bitrate, specify the maximum expected bitrate (in bits per second) for the flow. We recommend that you specify a value that is twice the actual bitrate.

    SRT listener

    1. For Protocol, SRT listener will automatically be selected.

    2. For Source description, enter a description that will remind you later where this source is from. This might be the company name or notes about the setup.

    3. For VPC interface name, choose the name of the VPC interface that you want to use as the source.

    4. For Inbound port, specify the port that the flow listens on for incoming content.

    5. For Maximum bitrate, specify the maximum expected bitrate (in bits per second) for the flow. We recommend that you specify a value that is twice the actual bitrate.

    6. For Minimum 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 from 10 -15,000 ms. If you keep this field blank, the service 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.

    7. If the source is encrypted, choose Enable in the Decryption section and do the following:

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

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

    SRT caller

    1. For Protocol, SRT caller will automatically be selected.

    2. For Source description, enter a description that will remind you later where this source is from. This might be the company name or notes about the setup.

    3. For VPC interface name, choose the name of the VPC interface that you want to use as the source.

    4. For Source listener port, enter the port MediaConnect will use for the SRT connection.

    5. For Source listener address, enter the address MediaConnect will use for the SRT connection. The address can be an IP address or a domain name.

    6. For Maximum bitrate, specify the maximum expected bitrate (in bits per second) for the flow. We recommend that you specify a value that is twice the actual bitrate.

    7. For Minimum 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 from 10 -15,000 ms. If you keep this field blank, the service 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.

    8. For Stream ID (optional), enter an identifier for the stream. This identifier can be used to communicate information about the stream.

    9. If the source is encrypted, choose Enable in the Decryption section and do the following:

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

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

    Zixi push

    1. For Protocol, Zixi push will automatically be selected.

      AWS Elemental MediaConnect populates the value of the inbound port.

    2. For VPC interface name, choose the name of the VPC interface that you want to use as the source.

    3. For Stream ID, specify the stream ID set in the Zixi feeder.

      Important

      The stream ID must match the value set in the Zixi feeder. If you leave this field blank, MediaConnect uses the source name as the stream ID. If the stream ID is not exactly the same as the source name, you must manually enter the stream ID.

    4. 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 from 0–60,000 ms. If you keep this field blank, the service uses the default value of 6,000 ms.

    5. If the source is encrypted, choose Enable in the Decryption section and do the following:

      1. For Decryption type, choose Static key.

      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 encryption key.

      4. For Decryption algorithm, choose the type of encryption that was used to encrypt the source.

  13. Choose Save.