Static Multiview Channel

A staticMultiviewChannels resource composes multiple live inputs into a single encoded multiview output. It is designed to run continuously as 24/7 production infrastructure and is billed at a monthly flat rate.

Caution

Starting a staticMultiviewChannels resource incurs monthly billing. Review the current project rate card before starting. For time-bounded multiview workloads, use Static Multiview Event.

For a complete setup guide that covers sources, templates, and the multiview resource together, see Multiview setup walkthrough.

When to use this resource type

Use staticMultiviewChannels when your multiview feed needs to be available continuously without a defined start and end time. Common use cases are control room monitoring feeds, permanent studio outputs, and production infrastructure that is always on.

If your multiview feed runs for a defined window (a match, a show, a scheduled broadcast), use staticMultiviewEvents instead. Events use per-minute billing.

Prerequisites

• One source or content resource per input (Media API). See Content, sources, and destinations.

• An encodingLive customer config with input pins configured for multiview (Templates API). Discover presets at runtime, create a config from one, then retrieve the created config’s pins. See Manage templates.

• Optionally, a multiviewComposing template if you are separating composition from encoding.

• An MK.IO asset to write output into.

Step 1: Check template input pins

Before creating the resource, read your encodingLive template and note the pin names in status.inputPins[].name. Each input in the resource spec uses a transformInput value that must exactly match a pin name from this list.

curl -X GET "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/templating/configs/encodingLive/my-multiview-template" \
  -H "Authorization: Bearer <YOUR_TOKEN>"

If you are using a multiviewComposing template (Mode 2), also read its pins. In Mode 2, transformInput must match pins from the multiviewComposing template, not the encodingLive template.

Step 2: Create the resource

Create with spec.state set to Stopped. The resource is provisioned but does not start processing until you patch it to Running.

Choose Mode 1 or Mode 2 depending on how your templates are structured. If you are not sure which to use, see How composition works.

Mode 1: Layout inside the encodingLive template

Use this when a single encodingLive template handles both the visual composition and encoding.

curl -X PUT "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio" \
  -H "Authorization: Bearer <YOUR_TOKEN>" \
  -H "Content-Type: application/json" \
  -d '{
    "metadata": {
      "displayName": "Main Studio Multiview"
    },
    "spec": {
      "state": "Stopped",
      "inputs": [
        {
          "sourceName": "camera-1",
          "transformInput": "<INPUT_1_PIN>"
        },
        {
          "sourceName": "camera-2",
          "transformInput": "<INPUT_2_PIN>"
        },
        {
          "sourceName": "camera-3",
          "transformInput": "<INPUT_3_PIN>"
        },
        {
          "sourceName": "camera-4",
          "transformInput": "<INPUT_4_PIN>"
        }
      ],
      "outputs": [],
      "transform": {
        "type": "StaticMultiviewChannel",
        "assetName": "main-studio-archive",
        "archiveWindowLength": "PT4H",
        "encodingLive": {
          "configRef": {
            "name": "my-multiview-template",
            "version": "latest"
          }
        }
      }
    }
  }'

Each input can use sourceName or contentName. The example uses sourceName. contentName lets the platform resolve among candidates that can supply the content, but it does not guarantee seamless media failover.

The pin names in transformInput (<INPUT_1_PIN> etc.) are illustrative. Use the exact values from your template’s status.inputPins[].name.

Mode 2: Separate multiviewComposing template

Use this when you want independent control over the visual layout and the encoding parameters. The multiviewComposing template defines how feeds are arranged on screen. The encodingLive template defines how the composed output is encoded. Pin names in transformInput must match the multiviewComposing template.

curl -X PUT "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio" \
  -H "Authorization: Bearer <YOUR_TOKEN>" \
  -H "Content-Type: application/json" \
  -d '{
    "metadata": {
      "displayName": "Main Studio Multiview"
    },
    "spec": {
      "state": "Stopped",
      "inputs": [
        {
          "sourceName": "camera-1",
          "transformInput": "composing/input_1"
        },
        {
          "sourceName": "camera-2",
          "transformInput": "composing/input_2"
        }
      ],
      "outputs": [],
      "transform": {
        "type": "StaticMultiviewChannel",
        "assetName": "main-studio-archive",
        "archiveWindowLength": "P7DT0S",
        "encodingLive": {
          "configRef": {
            "name": "my-encoding-template",
            "version": "latest"
          }
        },
        "multiviewComposing": {
          "configRef": {
            "name": "my-composing-template",
            "version": "latest"
          }
        }
      }
    }
  }'

Optional fields

Step 3: Check dependencies

Immediately before startup, retrieve each source or content resource, the asset, and every referenced config. Confirm that the references still point to the resources you intend to use.

Step 4: Start the resource

Caution

Starting the resource incurs monthly billing. Confirm the configuration and review the current project rate card before starting.

curl -X PATCH "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio" \
  -H "Authorization: Bearer <YOUR_TOKEN>" \
  -H "Content-Type: application/json" \
  -d '{
    "spec": {
      "state": "Running"
    }
  }'

After requesting startup, begin sending from every SRT encoder using its source’s returned URL.

Poll the state endpoint until status.state is Running:

curl -X GET "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio/state" \
  -H "Authorization: Bearer <YOUR_TOKEN>"

Step 5: Monitor the resource

Once running, use the full GET to see input resolution, output status, and encoding metrics:

curl -X GET "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio?\$detailedStatus=true" \
  -H "Authorization: Bearer <YOUR_TOKEN>"

The status.inputs array shows which content each input resolved to. Resolution and event-level status do not prove that every source is delivering media. Check each encoder’s contribution and verify that every expected tile updates in the composed picture. The status.monitoring object contains thumbnail and metadata URLs if your config produces them.

For a full breakdown of what each status field means, see Monitor live resources.

Stop and delete

To take the resource down for maintenance or permanently, stop it first:

curl -X PATCH "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio" \
  -H "Authorization: Bearer <YOUR_TOKEN>" \
  -H "Content-Type: application/json" \
  -d '{ "spec": { "state": "Stopped" } }'

Stopping a staticMultiviewChannels resource does not change the monthly billing already incurred. When you no longer need the resource:

curl -X DELETE "https://app.mk.io/api/v1/projects/<PROJECT_NAME>/live/staticMultiviewChannels/main-studio" \
  -H "Authorization: Bearer <YOUR_TOKEN>"

Review the recording and your retention requirements before removing any related assets or storage.

Scheduled automation

To automate start and stop windows for maintenance windows or planned events, create a scheduled operation on the resource. See Scheduled operations.