Manage a VOD session enabled by Google Ad Manager

Using the Video Stitcher API, you create a video-on-demand (VOD) session each time you dynamically insert ads served by Google Ad Manager prior to delivery to client devices. When you create a session, the response includes the playback URL and information about the ads that you inserted into the video.

This page describes how to create and manage a VOD session that is enabled by Google Ad Manager. For information on VOD sessions that don't use Google Ad Manager, see Manage a VOD session.

Before you begin

• Create a VOD config. For the integration with Google Ad Manager, ensure that the gamVodConfig object is set.

Create a session

You can create a VOD session by using the IMA SDK (which calls the Video Stitcher API) or by using the Video Stitcher API directly.

Use the IMA SDK

If you are integrating with the IMA SDK, the IMA SDK creates the VOD session.

function requestVodVideoStitcherStream() {
  const streamRequest = new google.ima.dai.api.VideoStitcherVodStreamRequest();
  streamRequest.vodConfigId = 'VOD_CONFIG_ID';
  streamRequest.region = 'LOCATION';
  streamRequest.projectNumber = 'PROJECT_NUMBER';
  streamRequest.oAuthToken = 'OAUTH_TOKEN';
  streamRequest.networkCode = 'NETWORK_CODE';

  streamManager.requestStream(streamRequest);
}

VOD sessions enabled by Google Ad Manager must use client-side ad tracking.

You can set or override the following optional parameters per session:

• manifestOptions: specifies which video renditions are generated in the stitched video manifest and the ordering of the renditions; see the manifest options documentation
• adTagMacroMap: a list of key-value pairs for ad tag macro replacement; see the ad tag macros section

See the next section to learn how to set these parameters using the IMA SDK.

Optional parameters and overrides

function requestVodVideoStitcherStream() {
  const streamRequest = new google.ima.dai.api.VideoStitcherVodStreamRequest();
  streamRequest.vodConfigId = 'VOD_CONFIG_ID';
  streamRequest.region = 'LOCATION';
  streamRequest.projectNumber = 'PROJECT_NUMBER';
  streamRequest.oAuthToken = 'OAUTH_TOKEN';
  streamRequest.networkCode = 'NETWORK_CODE';
  streamRequest.videoStitcherSessionOptions = {
    manifestOptions: {
      "includeRenditions": [
        {
          "bitrateBps": 150000,
          "codecs": "hvc1.1.4.L126.B0"
        },
        {
          "bitrateBps": 440000,
          "codecs": "hvc1.1.4.L126.B0"
        },
      ],
      "bitrateOrder": "descending",
    },
    "adTagMacroMap":  {
      "my-key": "my-value"
    }
  };

  streamManager.requestStream(streamRequest);
}

Use the API directly

To create a session for an ad-stitched video, use the projects.locations.vodSessions.create method.

Note: You need to configure the gamSettings object in the following code samples. Also, VOD sessions enabled by Google Ad Manager must use client-side ad tracking.

REST

Before using any of the request data, make the following replacements:

• PROJECT_NUMBER: your Google Cloud project number located in the Project number field on the IAM Settings page
• LOCATION: the location in which to create your session; use one of the supported regions
  Show locations
  • us-central1
  • us-east1
  • us-west1
  • asia-east1
  • asia-south1
  • asia-southeast1
  • europe-west1
  • southamerica-east1
• VOD_CONFIG_ID: the user-defined identifier for the VOD config

To send your request, expand one of these options:

curl (Linux, macOS, or Cloud Shell)

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login , or by using Cloud Shell, which automatically logs you into the gcloud CLI . You can check the currently active account by running gcloud auth list.

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory:

cat > request.json << 'EOF'
{
  "vodConfig": "projects/PROJECT_NUMBER/locations/LOCATION/vodConfigs/VOD_CONFIG_ID",
  "adTracking": "SERVER"
}
EOF

Then execute the following command to send your REST request:

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json; charset=utf-8" \
     -d @request.json \
     "https://videostitcher.googleapis.com/v1/projects/PROJECT_NUMBER/locations/LOCATION/vodSessions"

PowerShell (Windows)

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login . You can check the currently active account by running gcloud auth list.

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory:

@'
{
  "vodConfig": "projects/PROJECT_NUMBER/locations/LOCATION/vodConfigs/VOD_CONFIG_ID",
  "adTracking": "SERVER"
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/json; charset=utf-8" `
    -InFile request.json `
    -Uri "https://videostitcher.googleapis.com/v1/projects/PROJECT_NUMBER/locations/LOCATION/vodSessions" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/vodSessions/SESSION_ID",
  "interstitials": {
    "sessionContent": {
      "duration": "60s"
    }
  },
  "playUri": "PLAY_URI", # This is the ad-stitched VOD URI
  "sourceUri": "VOD_URI",
  "adTagUri": "AD_TAG_URI",
  "assetId": "ASSET_ID",
  "adTracking": "SERVER",
  "vodConfig": "projects/PROJECT_NUMBER/locations/LOCATION/vodConfigs/VOD_CONFIG_ID"
}

C#

Before trying this sample, follow the C# setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API C# API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

using Google.Api.Gax.ResourceNames;
using Google.Cloud.Video.Stitcher.V1;

public class CreateVodSessionSample
{
    public VodSession CreateVodSession(
        string projectId, string location, string vodConfigId)
    {
        // Create the client.
        VideoStitcherServiceClient client = VideoStitcherServiceClient.Create();

        CreateVodSessionRequest request = new CreateVodSessionRequest
        {
            ParentAsLocationName = LocationName.FromProjectLocation(projectId, location),
            VodSession = new VodSession
            {
                VodConfig = VodConfigName.FormatProjectLocationVodConfig(projectId, location, vodConfigId),
                AdTracking = AdTracking.Server
            }
        };

        // Call the API.
        VodSession session = client.CreateVodSession(request);

        // Return the result.
        return session;
    }
}

Go

Before trying this sample, follow the Go setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Go API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"fmt"
	"io"

	stitcher "cloud.google.com/go/video/stitcher/apiv1"
	stitcherstreampb "cloud.google.com/go/video/stitcher/apiv1/stitcherpb"
)

// createVodSession creates a video on demand (VOD) session in which to insert ads.
// VOD sessions are ephemeral resources that expire after a few hours.
func createVodSession(w io.Writer, projectID, vodConfigID string) error {
	// projectID := "my-project-id"
	// vodConfigID := "my-vod-config-id"
	location := "us-central1"
	ctx := context.Background()
	client, err := stitcher.NewVideoStitcherClient(ctx)
	if err != nil {
		return fmt.Errorf("stitcher.NewVideoStitcherClient: %w", err)
	}
	defer client.Close()

	req := &stitcherstreampb.CreateVodSessionRequest{
		Parent: fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		VodSession: &stitcherstreampb.VodSession{
			VodConfig:  fmt.Sprintf("projects/%s/locations/%s/vodConfigs/%s", projectID, location, vodConfigID),
			AdTracking: stitcherstreampb.AdTracking_SERVER,
		},
	}
	// Creates the VOD session.
	response, err := client.CreateVodSession(ctx, req)
	if err != nil {
		return fmt.Errorf("client.CreateVodSession: %w", err)
	}

	fmt.Fprintf(w, "VOD session: %v", response.GetName())
	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Java API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.video.stitcher.v1.AdTracking;
import com.google.cloud.video.stitcher.v1.CreateVodSessionRequest;
import com.google.cloud.video.stitcher.v1.LocationName;
import com.google.cloud.video.stitcher.v1.VideoStitcherServiceClient;
import com.google.cloud.video.stitcher.v1.VodConfigName;
import com.google.cloud.video.stitcher.v1.VodSession;
import java.io.IOException;

public class CreateVodSession {

  public static void main(String[] args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String location = "us-central1";
    String vodConfigId = "my-vod-config-id";

    createVodSession(projectId, location, vodConfigId);
  }

  // Creates a video on demand (VOD) session using the parameters in the designated VOD config.
  // For more information, see
  // https://cloud.google.com/video-stitcher/docs/how-to/creating-vod-sessions.
  public static VodSession createVodSession(String projectId, String location, String vodConfigId)
      throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (VideoStitcherServiceClient videoStitcherServiceClient =
        VideoStitcherServiceClient.create()) {
      CreateVodSessionRequest createVodSessionRequest =
          CreateVodSessionRequest.newBuilder()
              .setParent(LocationName.of(projectId, location).toString())
              .setVodSession(
                  VodSession.newBuilder()
                      .setVodConfig(VodConfigName.format(projectId, location, vodConfigId))
                      .setAdTracking(AdTracking.SERVER)
                      .build())
              .build();

      VodSession response = videoStitcherServiceClient.createVodSession(createVodSessionRequest);
      System.out.println("Created VOD session: " + response.getName());
      return response;
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Node.js API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// projectId = 'my-project-id';
// location = 'us-central1';
// vodConfigId = 'my-vod-config-id';

// Imports the Video Stitcher library
const {VideoStitcherServiceClient} =
  require('@google-cloud/video-stitcher').v1;
// Instantiates a client
const stitcherClient = new VideoStitcherServiceClient();

async function createVodSession() {
  // Construct request
  const request = {
    parent: stitcherClient.locationPath(projectId, location),
    vodSession: {
      vodConfig: stitcherClient.vodConfigPath(
        projectId,
        location,
        vodConfigId
      ),
      adTracking: 'SERVER',
    },
  };
  const [session] = await stitcherClient.createVodSession(request);
  console.log(`VOD session: ${session.name}`);
}

createVodSession().catch(err => {
  console.error(err.message);
  process.exitCode = 1;
});

PHP

Before trying this sample, follow the PHP setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API PHP API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

use Google\Cloud\Video\Stitcher\V1\AdTracking;
use Google\Cloud\Video\Stitcher\V1\Client\VideoStitcherServiceClient;
use Google\Cloud\Video\Stitcher\V1\CreateVodSessionRequest;
use Google\Cloud\Video\Stitcher\V1\VodSession;

/**
 * Creates a VOD session. VOD sessions are ephemeral resources that expire
 * after a few hours.
 *
 * @param string $callingProjectId     The project ID to run the API call under
 * @param string $location             The location of the session
 * @param string $vodConfigId          The name of the VOD config to use for the session
 */
function create_vod_session(
    string $callingProjectId,
    string $location,
    string $vodConfigId
): void {
    // Instantiate a client.
    $stitcherClient = new VideoStitcherServiceClient();

    $parent = $stitcherClient->locationName($callingProjectId, $location);
    $vodConfig = $stitcherClient->vodConfigName($callingProjectId, $location, $vodConfigId);
    $vodSession = new VodSession();
    $vodSession->setVodConfig($vodConfig);
    $vodSession->setAdTracking(AdTracking::SERVER);

    // Run VOD session creation request
    $request = (new CreateVodSessionRequest())
        ->setParent($parent)
        ->setVodSession($vodSession);
    $response = $stitcherClient->createVodSession($request);

    // Print results
    printf('VOD session: %s' . PHP_EOL, $response->getName());
}

Python

Before trying this sample, follow the Python setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Python API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import argparse

from google.cloud.video import stitcher_v1
from google.cloud.video.stitcher_v1.services.video_stitcher_service import (
    VideoStitcherServiceClient,
)


def create_vod_session(
    project_id: str, location: str, vod_config_id: str
) -> stitcher_v1.types.VodSession:
    """Creates a VOD session. VOD sessions are ephemeral resources that expire
    after a few hours.
    Args:
        project_id: The GCP project ID.
        location: The location in which to create the session.
        vod_config_id: The user-defined VOD config ID to use to create the
                        session.

    Returns:
        The VOD session resource.
    """

    client = VideoStitcherServiceClient()

    parent = f"projects/{project_id}/locations/{location}"
    vod_config_name = (
        f"projects/{project_id}/locations/{location}/vodConfigs/{vod_config_id}"
    )

    vod_session = stitcher_v1.types.VodSession(
        vod_config=vod_config_name, ad_tracking="SERVER"
    )

    response = client.create_vod_session(parent=parent, vod_session=vod_session)
    print(f"VOD session: {response.name}")
    return response

Ruby

Before trying this sample, follow the Ruby setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Ruby API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

require "google/cloud/video/stitcher"

##
# Create a video on demand (VOD) session. VOD sessions are ephemeral resources
# that expire after a few hours.
#
# @param project_id [String] Your Google Cloud project (e.g. `my-project`)
# @param location [String] The location (e.g. `us-central1`)
# @param vod_config_id [String] The VOD config ID (e.g. `my-vod-config`) to use
#
def create_vod_session project_id:, location:, vod_config_id:
  # Create a Video Stitcher client.
  client = Google::Cloud::Video::Stitcher.video_stitcher_service

  # Build the resource name of the parent.
  parent = client.location_path project: project_id, location: location

  # Build the resource name of the VOD config.
  vod_config_name = client.vod_config_path project: project_id,
                                           location: location,
                                           vod_config: vod_config_id

  # Set the session fields.
  new_vod_session = {
    vod_config: vod_config_name,
    ad_tracking: Google::Cloud::Video::Stitcher::V1::AdTracking::SERVER
  }

  response = client.create_vod_session parent: parent,
                                       vod_session: new_vod_session

  # Print the VOD session name.
  puts "VOD session: #{response.name}"
end

The Video Stitcher API generates a unique session ID for each request. A session expires after 4 hours.

The response should now be similar to the following:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/vodSessions/SESSION_ID",
  "interstitials": {
    "adBreaks": [
      {
        "progressEvents": [
          {
            "timeOffset": "0s",
            "events": [
              {
                "type": "IMPRESSION",
                "uri": "https://securepubads.g.doubleclick.net/pcs/view..."
              },
              {
                "type": "START",
                "uri": "https://pubads.g.doubleclick.net/pagead/interaction/..."
              },
              ...
            ]
          },
          ...
        ],
        "ads": [
          {
            "duration": "10s",
            "activityEvents": [
              {
                "type": "ERROR",
                "uri": "https://pubads.g.doubleclick.net/pagead/interaction/..."
              },
              {
                "type": "CLICK_THROUGH",
                "uri": "https://pubads.g.doubleclick.net/pcs/click...",
                "id": "GDFP"
              },
              ...
            ]
          }
        ],
        "endTimeOffset": "10s",
        "startTimeOffset": "0s"
      }
    ],
    "sessionContent": {
      "duration": "70s"
    }
  },
  "playUri": "PLAY_URI",
  "sourceUri": "VOD_URI",
  "adTagUri": "AD_TAG_URI",
  "assetId": "ASSET_ID",
  "adTracking": "SERVER",
  "vodConfig": "projects/PROJECT_NUMBER/locations/LOCATION/vodConfigs/VOD_CONFIG_ID"
}

The response is a VodSession object that contains the following fields:

• A name field that shows the VOD SESSION_ID. Use this ID to get the session.
• An interstitials field that contains metadata about the ads that were inserted (see the ad metadata concepts).
• A playUri field that shows the URL that the client device uses to play the conditioned video asset.

If you're generating a session on behalf of your customers' devices, set the following parameters using HTTP headers:

Parameter	HTTP Header
CLIENT_IP	x-user-ip
REFERRER_URL	referer
USER_AGENT	user-agent

You can add the following headers to the preceding curl request:

-H "x-user-ip: CLIENT_IP" \
-H "referer: REFERRER_URL" \
-H "user-agent: USER_AGENT" \

Ad tag macros

An ad tag can contain macros, which can result in a different ad tag for each session. Macros are denoted by square brackets in the ad tag, as illustrated by the following example:

AD_TAG_URI&macro=[my-key]

The adTagUri is defined in the VOD config.

To substitute the value in the ad tag macro, provide a mapping in the adTagMacroMap field. For example, if you want to replace the [my-key] macro with the string my-value, you need to provide the following:

{
  ...
  "adTagMacroMap": {
    "my-key": "my-value"
  },
  ...
}

When the Video Stitcher API requests the ad metadata, it uses the following ad tag:

AD_TAG_URI&macro=my-value

Get a session

To get the session for an ad-stitched video, use the projects.locations.vodSessions.get method.

REST

Before using any of the request data, make the following replacements:

• PROJECT_NUMBER: your Google Cloud project number located in the Project number field on the IAM Settings page
• LOCATION: the location of your session; use one of the supported regions
  Show locations
  • us-central1
  • us-east1
  • us-west1
  • asia-east1
  • asia-south1
  • asia-southeast1
  • europe-west1
  • southamerica-east1
• SESSION_ID: the identifier for the VOD session

To send your request, expand one of these options:

curl (Linux, macOS, or Cloud Shell)

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login , or by using Cloud Shell, which automatically logs you into the gcloud CLI . You can check the currently active account by running gcloud auth list.

Execute the following command:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://videostitcher.googleapis.com/v1/projects/PROJECT_NUMBER/locations/LOCATION/vodSessions/SESSION_ID"

PowerShell (Windows)

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login . You can check the currently active account by running gcloud auth list.

Execute the following command:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://videostitcher.googleapis.com/v1/projects/PROJECT_NUMBER/locations/LOCATION/vodSessions/SESSION_ID" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/vodSessions/SESSION_ID",
  "interstitials": {
    "adBreaks": [
      {
        "progressEvents": [
          {
            "timeOffset": "0s",
            "events": [
              {
                "type": "IMPRESSION",
                "uri": "https://securepubads.g.doubleclick.net/pcs/view..."
              },
              {
                "type": "START",
                "uri": "https://pubads.g.doubleclick.net/pagead/interaction/..."
              },
              ...
            ]
          },
          ...
        ],
        "ads": [
          {
            "duration": "10s",
            "activityEvents": [
              {
                "type": "ERROR",
                "uri": "https://pubads.g.doubleclick.net/pagead/interaction/..."
              },
              {
                "type": "CLICK_THROUGH",
                "uri": "https://pubads.g.doubleclick.net/pcs/click...",
                "id": "GDFP"
              },
              ...
            ]
          }
        ],
        "endTimeOffset": "10s",
        "startTimeOffset": "0s"
      }
    ],
    "sessionContent": {
      "duration": "70s"
    }
  },
  "playUri": "PLAY_URI",
  "sourceUri": "VOD_URI",
  "adTagUri": "AD_TAG_URI",
  "assetId": "ASSET_ID",
  "adTracking": "SERVER",
  "vodConfig": "projects/PROJECT_NUMBER/locations/LOCATION/vodConfigs/VOD_CONFIG_ID"
}

C#

Before trying this sample, follow the C# setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API C# API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

using Google.Cloud.Video.Stitcher.V1;

public class GetVodSessionSample
{
    public VodSession GetVodSession(
        string projectId, string location, string sessionId)
    {
        // Create the client.
        VideoStitcherServiceClient client = VideoStitcherServiceClient.Create();

        GetVodSessionRequest request = new GetVodSessionRequest
        {
            VodSessionName = VodSessionName.FromProjectLocationVodSession(projectId, location, sessionId)
        };

        // Call the API.
        VodSession session = client.GetVodSession(request);

        // Return the result.
        return session;
    }
}

Go

Before trying this sample, follow the Go setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Go API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"encoding/json"
	"fmt"
	"io"

	stitcher "cloud.google.com/go/video/stitcher/apiv1"
	stitcherstreampb "cloud.google.com/go/video/stitcher/apiv1/stitcherpb"
)

// getVodSession gets a VOD session by ID.
func getVodSession(w io.Writer, projectID, sessionID string) error {
	// projectID := "my-project-id"
	// sessionID := "123-456-789"
	location := "us-central1"
	ctx := context.Background()
	client, err := stitcher.NewVideoStitcherClient(ctx)
	if err != nil {
		return fmt.Errorf("stitcher.NewVideoStitcherClient: %w", err)
	}
	defer client.Close()

	req := &stitcherstreampb.GetVodSessionRequest{
		Name: fmt.Sprintf("projects/%s/locations/%s/vodSessions/%s", projectID, location, sessionID),
	}
	// Gets the session.
	response, err := client.GetVodSession(ctx, req)
	if err != nil {
		return fmt.Errorf("client.GetVodSession: %w", err)
	}
	b, err := json.MarshalIndent(response, "", " ")
	if err != nil {
		return fmt.Errorf("json.MarshalIndent: %w", err)
	}

	fmt.Fprintf(w, "VOD session:\n%s", string(b))
	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Java API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.video.stitcher.v1.GetVodSessionRequest;
import com.google.cloud.video.stitcher.v1.VideoStitcherServiceClient;
import com.google.cloud.video.stitcher.v1.VodSession;
import com.google.cloud.video.stitcher.v1.VodSessionName;
import java.io.IOException;

public class GetVodSession {

  public static void main(String[] args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String location = "us-central1";
    String sessionId = "my-session-id";

    getVodSession(projectId, location, sessionId);
  }

  // Gets a video on demand (VOD) session.
  public static VodSession getVodSession(String projectId, String location, String sessionId)
      throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (VideoStitcherServiceClient videoStitcherServiceClient =
        VideoStitcherServiceClient.create()) {
      GetVodSessionRequest getVodSessionRequest =
          GetVodSessionRequest.newBuilder()
              .setName(VodSessionName.of(projectId, location, sessionId).toString())
              .build();

      VodSession response = videoStitcherServiceClient.getVodSession(getVodSessionRequest);
      System.out.println("VOD session: " + response.getName());
      return response;
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Node.js API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// projectId = 'my-project-id';
// location = 'us-central1';
// sessionId = 'my-session-id';

// Imports the Video Stitcher library
const {VideoStitcherServiceClient} =
  require('@google-cloud/video-stitcher').v1;
// Instantiates a client
const stitcherClient = new VideoStitcherServiceClient();

async function getVodSession() {
  // Construct request
  const request = {
    name: stitcherClient.vodSessionPath(projectId, location, sessionId),
  };
  const [session] = await stitcherClient.getVodSession(request);
  console.log(`VOD session: ${session.name}`);
}

getVodSession().catch(err => {
  console.error(err.message);
  process.exitCode = 1;
});

PHP

Before trying this sample, follow the PHP setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API PHP API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

use Google\Cloud\Video\Stitcher\V1\Client\VideoStitcherServiceClient;
use Google\Cloud\Video\Stitcher\V1\GetVodSessionRequest;

/**
 * Gets a VOD session.
 *
 * @param string $callingProjectId     The project ID to run the API call under
 * @param string $location             The location of the session
 * @param string $sessionId            The ID of the session
 */
function get_vod_session(
    string $callingProjectId,
    string $location,
    string $sessionId
): void {
    // Instantiate a client.
    $stitcherClient = new VideoStitcherServiceClient();

    $formattedName = $stitcherClient->vodSessionName($callingProjectId, $location, $sessionId);
    $request = (new GetVodSessionRequest())
        ->setName($formattedName);
    $session = $stitcherClient->getVodSession($request);

    // Print results
    printf('VOD session: %s' . PHP_EOL, $session->getName());
}

Python

Before trying this sample, follow the Python setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Python API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import argparse

from google.cloud.video import stitcher_v1
from google.cloud.video.stitcher_v1.services.video_stitcher_service import (
    VideoStitcherServiceClient,
)


def get_vod_session(
    project_id: str, location: str, session_id: str
) -> stitcher_v1.types.VodSession:
    """Gets a VOD session. VOD sessions are ephemeral resources that expire
    after a few hours.
    Args:
        project_id: The GCP project ID.
        location: The location of the session.
        session_id: The ID of the VOD session.

    Returns:
        The VOD session resource.
    """

    client = VideoStitcherServiceClient()

    name = client.vod_session_path(project_id, location, session_id)
    response = client.get_vod_session(name=name)
    print(f"VOD session: {response.name}")
    return response

Ruby

Before trying this sample, follow the Ruby setup instructions in the Video Stitcher API quickstart using client libraries. For more information, see the Video Stitcher API Ruby API reference documentation.

To authenticate to Video Stitcher API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

require "google/cloud/video/stitcher"

##
# Get a VOD session. VOD sessions are ephemeral resources that expire
# after a few hours.
#
# @param project_id [String] Your Google Cloud project (e.g. `my-project`)
# @param location [String] The location (e.g. `us-central1`)
# @param session_id [String] The VOD session ID (e.g. `my-vod-session-id`)
#
def get_vod_session project_id:, location:, session_id:
  # Create a Video Stitcher client.
  client = Google::Cloud::Video::Stitcher.video_stitcher_service

  # Build the resource name of the VOD session.
  name = client.vod_session_path project: project_id, location: location,
                                 vod_session: session_id

  # Get the VOD session.
  session = client.get_vod_session name: name

  # Print the VOD session name.
  puts "VOD session: #{session.name}"
end

Sample ad-stitched playlist

The following shows a sample source VOD playlist before ad-stitching:

#EXTM3U
#EXT-X-TARGETDURATION:6
#EXT-X-VERSION:4
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:6.000,
segment_01.ts
#EXTINF:6.000,
segment_02.ts
#EXTINF:6.000,
segment_03.ts
#EXTINF:6.000,
segment_04.ts
#EXTINF:6.000,
segment_05.ts
#EXTINF:6.000,
segment_06.ts
#EXT-X-ENDLIST

The following shows a sample source VOD playlist after ad stitching with pre-roll, mid-roll, and post-roll ads:

#EXTM3U
#EXT-X-VERSION:4
#EXT-X-TARGETDURATION:6
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-DISCONTINUITY
#EXTINF:4.000,
https://redirector.googlevideo.com/videoplayback/...
#EXTINF:4.000,
https://redirector.googlevideo.com/videoplayback/...
#EXTINF:1.990,
https://redirector.googlevideo.com/videoplayback/...
#EXT-X-DISCONTINUITY
#EXTINF:6.000,
segment_01.ts
#EXTINF:6.000,
segment_02.ts
#EXT-X-DISCONTINUITY
#EXTINF:4.000,
https://redirector.googlevideo.com/videoplayback/...
#EXTINF:0.990,
https://redirector.googlevideo.com/videoplayback/...
#EXT-X-DISCONTINUITY
#EXTINF:6.000,
segment_03.ts
#EXTINF:6.000,
segment_04.ts
#EXTINF:6.000,
segment_05.ts
#EXTINF:6.000,
segment_06.ts
#EXT-X-DISCONTINUITY
#EXTINF:4.000,
https://redirector.googlevideo.com/videoplayback/...
#EXTINF:4.000,
https://redirector.googlevideo.com/videoplayback/...
#EXTINF:1.990,
https://redirector.googlevideo.com/videoplayback/...
#EXT-X-ENDLIST

Handle client-side ad tracking

The IMA SDK will automatically handle the client-side ad tracking.

Inspect VOD sessions enabled by Google Ad Manager

To inspect VOD sessions and the ad tag details for these sessions, use the Stream activity monitor in Ad Manager.