# Configure the output

## Configure the output stream general parameters

To configure the output stream general parameters, follow these steps:

1. From the **Output** tab, click `Edit` to edit the output parameters. The Output parameters display.

2. Configure the [**General parameters**](/beam/live-encoder/parameters/output#general).

3. With MPEG-2 TS output, configure the [associated parameters](/beam/live-encoder/parameters/output#general-mpeg-2-ts-parameters).

4. With DASH-IF CMAF Ingest, configure the [associated parameters](/beam/live-encoder/parameters/output#general-dash-if-cmaf-ingest-parameters).

5. Configure the [output streams](/beam/live-encoder/parameters/output#output-stream-parameters).

6. Click **Save and continue** or **Save and exit** to save your changes.

### Activate EBP on audio output

1. From the **Output** tab, click `Edit` to edit the output.

2. From the **General parmeters** section, unfold the **GOP signaling**  dropdown menu to display possible values.

3. Select either **EBP based** or **ALD based** to display **EBP on audio** checkbox.

   ![screen output parameters ebp on audio mfvp el](/_machine-assets/469a3be2bffe7ee1071ff418969230d3d49501dab82088b11b4114df967df174.png)

4. Tick the checkbox to activate **EBP on audio**, then click **OK**.

   ![screen output parameters ebp on audio box mfvp el](/_machine-assets/a0918b5df1bd7630d717a57a7e401c3bddefdcd85e9f172c68f9a8894b44f9ad.png)

## Configure the output stream MPEG-2 TS parameters

To configure the output stream MPEG-2 TS parameters, follow these steps:

1. From the **Output** tab, click `Edit` to edit the output.

2. Go to the **Common MPEG-2 TS parameters** section. The MPEG-2 TS parameters are displayed.

3. Enter the appropriate values for each [MPEG-2 TS parameter](/beam/live-encoder/parameters/output#mpeg-2-ts-common-parameters).

4. You can [specify the streams that will be included in the output stream](/beam/live-encoder/configure/output/configure-output#define-the-output-stream-composition)).

5. Click **Save and continue** or **Save and exit** to save your changes.

## Create output streams

Before you start: ensure input streams are configured.

1. From the **Output** tab, click `Edit` to edit the output.

2. Go to the **Output streams** section then click the **Add** button. Output stream parameters are displayed.

   ![screen output parameters blank mfvp el](/_machine-assets/e94bfa37be951c7e1ac59dbef3f1167f34470256e8d52cb9f6d56930ad4096d9.png)

3. Configure settings and select streams.

4. [Activate FEC](/beam/live-encoder/configure/output/configure-output#activate-fec-on-existing-output-streams) to display additional FEC options.

5. [Link the output to a predefined subset](/beam/live-encoder/configure/output/configure-output#link-an-output-stream-to-a-predefined-subset) to synchronize streams or to distribute the streams across multiple servers.

6. Select any video, audio or subtitle [streams to add to the output](/beam/live-encoder/configure/output/configure-output#define-the-output-stream-composition).

7. Click **Ok** to save.

### Define the output stream composition

You can specify the composition of the output stream by selecting the video, audio and private streams that will be sent to the output.

Before you start: ensure input stream configurations are set.

1. From the **Output** tab, click `Edit` to edit the output.

2. Go to the **Output streams** section then click `Edit` to edit the output stream.

   ![screen output parameters blank mfvp el](/_machine-assets/e94bfa37be951c7e1ac59dbef3f1167f34470256e8d52cb9f6d56930ad4096d9.png)
   _Example of output stream configuration_

3. Tick the check boxes to select the streams to include in the output. Available streams depend on configured Inputs, Processing, and Encoding options.

   - video
   - audio
   - subtitle
   - metadata
   - etc.

   > **Info:** By default, one transport stream is defined using the first video stream and the first audio stream.

4. Click **Ok** to confirm. The output stream configuration is displayed in the output stream IP address and stream composition.

5. Click **Save and continue** or **Save and exit** to save your changes.

### Activate FEC on existing output streams

> **Info:** Only available with MPEG-2 TS/RTP transport protocol.

1. From the **Output** tab, click `Edit` to edit the output.

2. Go to the **Output streams** section then click `Edit` to edit the output stream.

3. Tick the **FEC** checkbox to activate. Additional FEC parameters display.

4. Enter [FEC parameters](/beam/live-encoder/parameters/output#output-stream-parameters)

5. Click **Ok** to save.

### Link an output stream to a predefined subset

You can link an output stream to a subset. Once linked, these subsets can be used to synchronize streams or to distribute the streams across multiple servers.

Before you start: ensure [server subsets](/beam/live-encoder/configure#create-subset-variants) are created.

1. From the **Output** tab, click `Edit` to edit the output.

2. Go to the **Output streams** section then click `Edit` to edit the output stream.

3. For the **Subset** parameter select an existing preset in the drop-down list. The output stream is linked to the selected subset.

4. Click **Ok** to save.

## Configure a DASH-IF CMAF output

DASH-IF CMAF Ingest is a protocol for transport of fragmented MP4 in CMAF container format between Live Encoder and a Packager.

To configure a DASH-IF CMAF output, follow these steps:

1. From the **Encoding** tab, go to the **Video** > **Gop settings** section then enter a value for **Low latency fragment(s) per GOP** (see [GOP settings](/beam/live-encoder/parameters/encoding/video#gop-settings)).

2. From the **Output** tab, create or edit an existing output.

   - In the **General parameters** section, set the **Transport protocol** to **DASH-IF CMAF INGEST**, then define the associated parameters (see [Output general parameters](/beam/live-encoder/parameters/output#general-parameters)).

   - In the **MP4 general parameters** section, set the number of **GOPs per segment**. You can optionally enable Low latency and Unix epoch relative timestamps. Fragment(s) per GOP value is retrieved from the Low latency fragment(s) per GOP field that you previously defined. (See [DASH-IF CMAF parameters](/beam/live-encoder/parameters/output#general-dash-if-cmaf-ingest-parameters))

   - The **Tracks** section displays all the streams configured in the **Encoding** tab. [You can change their track ID and add an optional label](/beam/live-encoder/parameters/output#tracks).

   - In the **Output groups** section, select the tracks to be added in the output (see [Defining the output stream composition](/beam/live-encoder/configure/output/configure-output#define-the-output-stream-composition)).