管理由 Google Ad Manager 支持的直播会话

使用 Video Stitcher API,您可以在每次开始播放直播时创建一个直播会话,在广告插播期间,Google Ad Manager 投放的广告会动态拼接。响应包含播放网址和直播会话的配置。

本页介绍了如何创建和管理由 Google Ad Manager 启用的直播会话。如需了解使用 Google Ad Manager 的直播会话,请参阅管理直播会话

准备工作

创建实时会话

您可以使用 IMA SDK(它会调用 Video Stitcher API)或直接使用 Video Stitcher API 来创建直播会话。

使用 IMA SDK

如果您是与 IMA SDK 集成,则 IMA SDK 会创建直播会话。

function requestVideoStitcherStream() {
  const streamRequest = new google.ima.dai.api.VideoStitcherLiveStreamRequest();
  streamRequest.liveStreamEventId = 'LIVE_CONFIG_ID';
  streamRequest.region = 'LOCATION';
  streamRequest.projectNumber = 'PROJECT_NUMBER';
  streamRequest.oAuthToken = 'OAUTH_TOKEN';
  streamRequest.networkCode = 'NETWORK_CODE';
  streamRequest.customAssetKey = 'CUSTOM_ASSET_KEY';

  streamManager.requestStream(streamRequest);
}

您可以为每个会话设置或替换以下可选参数:

请参阅下一部分,了解如何使用 IMA SDK 设置这些参数。

可选参数和替换项

您可以为每个会话设置可选参数,例如 manifestOptions 字段。此字段在实时配置中不可用。您还可以替换给定会话的实时配置中设置的某些参数。

例如,如果实时配置中的默认 adTracking 设置为 SERVER,您可以将该值替换为 CLIENT,还可以通过设置 videoStitcherSessionOptions JSON 对象字段来设置 IMA SDK 中的 manifestOptions 字段。

function requestVideoStitcherStream() {
  const streamRequest = new google.ima.dai.api.VideoStitcherLiveStreamRequest();
  streamRequest.liveStreamEventId = 'LIVE_CONFIG_ID';
  streamRequest.region = 'LOCATION';
  streamRequest.projectNumber = 'PROJECT_NUMBER';
  streamRequest.oAuthToken = 'OAUTH_TOKEN';
  streamRequest.networkCode = 'NETWORK_CODE';
  streamRequest.customAssetKey = 'CUSTOM_ASSET_KEY';
  streamRequest.videoStitcherSessionOptions = {
    adTracking: 'CLIENT',
    'manifestOptions': {
      'includeRenditions': [
        {
          'bitrateBps': 150000,
          'codecs': 'hvc1.1.4.L126.B0'
        },
        {
          'bitrateBps': 440000,
          'codecs': 'hvc1.1.4.L126.B0'
        },
      ],
      'bitrateOrder': 'descending'
    }
  };
  streamRequest.adTagParameters = {
    "key1": "value1",
    "key2": "value2",
  };

  streamManager.requestStream(streamRequest);
}

如需了解详情,请参阅添加流式传输会话选项

直接使用 API

如需使用 API 直接创建直播会话,请使用 projects.locations.liveSessions.create 方法。

liveConfig 字段是 JSON 正文中唯一的必填字段。您可以为每个直播会话设置或替换以下可选参数(如以下 REST 示例所示):

  • manifestOptions:指定在拼接视频清单中生成哪些视频转码版本以及这些转码版本的顺序;请参阅清单选项文档
  • adTracking:选择客户端广告跟踪或服务器端广告跟踪;此值会替换实时配置中的值(针对相应会话)
  • targetingParameters:Google Ad Manager 广告代码可以包含可按会话更新的定位参数;在此字段中提供映射(例如,将 [my_key] 宏替换为字符串 my_value,请参阅 REST 示例)

REST

在使用任何请求数据之前,请先进行以下替换:

  • PROJECT_NUMBERIAM 设置页面上项目编号字段中显示的 Google Cloud 项目编号
  • LOCATION:用于创建会话的位置;请使用某个受支持的地区
    显示位置
    • us-central1
    • us-east1
    • us-west1
    • asia-east1
    • asia-south1
    • asia-southeast1
    • europe-west1
    • southamerica-east1
  • LIVE_CONFIG_ID:实时配置的用户定义标识符

如需发送您的请求,请展开以下选项之一:

您应该收到类似以下内容的 JSON 响应:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/liveSessions/SESSION_ID",
  "playUri": "PLAY_URI",
  "manifestOptions": {
    "includeRenditions": [
      {
        "bitrateBps": 150000,
        "codecs": "hvc1.1.4.L126.B0"
      },
      {
        "bitrateBps": 440000,
        "codecs": "hvc1.1.4.L126.B0"
      }
    ],
    "bitrateOrder": "DESCENDING"
  },
  "gamSettings": {
    "streamId": "STREAM_ID"
  },
  "liveConfig": "projects/PROJECT_NUMBER/locations/LOCATION/liveConfigs/LIVE_CONFIG_ID",
  "adTracking": "SERVER"
}

C#

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 C# 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API C# API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


using Google.Cloud.Video.Stitcher.V1;

public class CreateLiveSessionSample
{
    public LiveSession CreateLiveSession(
        string projectId, string location, string liveConfigId)
    {
        // Create the client.
        VideoStitcherServiceClient client = VideoStitcherServiceClient.Create();

        CreateLiveSessionRequest request = new CreateLiveSessionRequest
        {
            Parent = $"projects/{projectId}/locations/{location}",
            LiveSession = new LiveSession
            {
                LiveConfig = LiveConfigName.FormatProjectLocationLiveConfig(projectId, location, liveConfigId)
            }
        };

        // Call the API.
        LiveSession session = client.CreateLiveSession(request);

        // Return the result.
        return session;
    }
}

Go

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Go 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Go API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

import (
	"context"
	"fmt"
	"io"

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

// createLiveSession creates a livestream session in which to insert ads.
// Live sessions are ephemeral resources that expire after a few minutes.
func createLiveSession(w io.Writer, projectID, liveConfigID string) error {
	// projectID := "my-project-id"
	// liveConfigID := "my-live-config"
	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 := &stitcherpb.CreateLiveSessionRequest{
		Parent: fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		LiveSession: &stitcherpb.LiveSession{
			LiveConfig: fmt.Sprintf("projects/%s/locations/%s/liveConfigs/%s", projectID, location, liveConfigID),
		},
	}
	// Creates the live session.
	response, err := client.CreateLiveSession(ctx, req)
	if err != nil {
		return fmt.Errorf("client.CreateLiveSession: %w", err)
	}

	fmt.Fprintf(w, "Live session: %v\n", response.GetName())
	fmt.Fprintf(w, "Play URI: %v", response.GetPlayUri())
	return nil
}

Java

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Java 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Java API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


import com.google.cloud.video.stitcher.v1.CreateLiveSessionRequest;
import com.google.cloud.video.stitcher.v1.LiveConfigName;
import com.google.cloud.video.stitcher.v1.LiveSession;
import com.google.cloud.video.stitcher.v1.LocationName;
import com.google.cloud.video.stitcher.v1.VideoStitcherServiceClient;
import java.io.IOException;

public class CreateLiveSession {

  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 liveConfigId = "my-live-config-id";

    createLiveSession(projectId, location, liveConfigId);
  }

  // Creates a live session given the parameters in the supplied live config.
  // For more information, see
  // https://cloud.google.com/video-stitcher/docs/how-to/managing-live-sessions.
  public static LiveSession createLiveSession(
      String projectId, String location, String liveConfigId) 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()) {
      CreateLiveSessionRequest createLiveSessionRequest =
          CreateLiveSessionRequest.newBuilder()
              .setParent(LocationName.of(projectId, location).toString())
              .setLiveSession(
                  LiveSession.newBuilder()
                      .setLiveConfig(LiveConfigName.format(projectId, location, liveConfigId)))
              .build();

      LiveSession response = videoStitcherServiceClient.createLiveSession(createLiveSessionRequest);
      System.out.println("Created live session: " + response.getName());
      System.out.println("Play URI: " + response.getPlayUri());
      return response;
    }
  }
}

Node.js

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Node.js 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Node.js API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

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

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

async function createLiveSession() {
  // Construct request
  const request = {
    parent: stitcherClient.locationPath(projectId, location),
    liveSession: {
      liveConfig: stitcherClient.liveConfigPath(
        projectId,
        location,
        liveConfigId
      ),
    },
  };

  const [session] = await stitcherClient.createLiveSession(request);
  console.log(`Live session: ${session.name}`);
  console.log(`Play URI: ${session.playUri}`);
}

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

PHP

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 PHP 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API PHP API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

use Google\Cloud\Video\Stitcher\V1\Client\VideoStitcherServiceClient;
use Google\Cloud\Video\Stitcher\V1\CreateLiveSessionRequest;
use Google\Cloud\Video\Stitcher\V1\LiveSession;

/**
 * Creates a live session. Live sessions are ephemeral resources that expire
 * after a few minutes.
 *
 * @param string $callingProjectId     The project ID to run the API call under
 * @param string $location             The location of the session
 * @param string $liveConfigId         The live config ID to use to create the
 *                                     live session
 */
function create_live_session(
    string $callingProjectId,
    string $location,
    string $liveConfigId
): void {
    // Instantiate a client.
    $stitcherClient = new VideoStitcherServiceClient();

    $parent = $stitcherClient->locationName($callingProjectId, $location);
    $liveConfig = $stitcherClient->liveConfigName($callingProjectId, $location, $liveConfigId);
    $liveSession = new LiveSession();
    $liveSession->setLiveConfig($liveConfig);

    // Run live session creation request
    $request = (new CreateLiveSessionRequest())
        ->setParent($parent)
        ->setLiveSession($liveSession);
    $response = $stitcherClient->createLiveSession($request);

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

Python

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Python 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Python API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


import argparse

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


def create_live_session(
    project_id: str, location: str, live_config_id: str
) -> stitcher_v1.types.LiveSession:
    """Creates a live session. Live sessions are ephemeral resources that expire
    after a few minutes.
    Args:
        project_id: The GCP project ID.
        location: The location in which to create the session.
        live_config_id: The user-defined live config ID.

    Returns:
        The live session resource.
    """

    client = VideoStitcherServiceClient()

    parent = f"projects/{project_id}/locations/{location}"
    live_config = (
        f"projects/{project_id}/locations/{location}/liveConfigs/{live_config_id}"
    )

    live_session = stitcher_v1.types.LiveSession(live_config=live_config)

    response = client.create_live_session(parent=parent, live_session=live_session)
    print(f"Live session: {response.name}")
    return response

Ruby

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Ruby 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Ruby API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

require "google/cloud/video/stitcher"

##
# Create a live stream session. Live sessions are ephemeral resources
# that expire after a few minutes.
#
# @param project_id [String] Your Google Cloud project (e.g. `my-project`)
# @param location [String] The location (e.g. `us-central1`)
# @param live_config_id [String] Your live config name (e.g. `my-live-config`)
#
def create_live_session project_id:, location:, live_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 live config.
  live_config_name = client.live_config_path project: project_id,
                                             location: location,
                                             live_config: live_config_id

  # Set the session fields.
  new_live_session = {
    live_config: live_config_name
  }

  response = client.create_live_session parent: parent,
                                        live_session: new_live_session

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

响应是一个实时会话对象playUri 是客户端设备用于播放相应直播会话的拼接广告视频流的网址。

Video Stitcher API 会为每个请求生成唯一的会话 ID。如果过去 5 分钟内未请求 playUri,会话就会过期。

如果您要代表客户的设备生成会话,可以使用 HTTP 标头设置以下参数:

参数 HTTP 标头
CLIENT_IP x-forwarded-for
REFERRER_URL referer
USER_AGENT user-agent

您可以向上述 curl 请求添加以下标头:

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

如果未提供 x-forwarded-for 标头,Video Stitcher API 会在广告元数据请求中使用客户端的 IP 地址。请注意,如果会话是代表客户的设备生成的,那么客户端的 IP 地址可能与客户设备的 IP 地址不一致。

获取会话

如需获取直播会话,请使用 projects.locations.liveSessions.get 方法。

REST

在使用任何请求数据之前,请先进行以下替换:

  • PROJECT_NUMBERIAM 设置页面上项目编号字段中显示的 Google Cloud 项目编号
  • LOCATION:用于创建会话的位置;请使用某个受支持的地区
    显示位置
    • us-central1
    • us-east1
    • us-west1
    • asia-east1
    • asia-south1
    • asia-southeast1
    • europe-west1
    • southamerica-east1
  • SESSION_ID:直播会话的标识符

如需发送您的请求,请展开以下选项之一:

您应该收到类似以下内容的 JSON 响应:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/liveSessions/SESSION_ID",
  "playUri": "ad-stitched-live-stream-uri",
  "manifestOptions": {
    "includeRenditions": [
      {
        "bitrateBps": 150000,
        "codecs": "hvc1.1.4.L126.B0"
      },
      {
        "bitrateBps": 440000,
        "codecs": "hvc1.1.4.L126.B0"
      }
    ],
    "bitrateOrder": "DESCENDING"
  },
  "gamSettings": {
    "streamId": "STREAM_ID",
    "targetingParameters": {
      "my_key": "my_value"
    }
  },
  "liveConfig": "projects/PROJECT_NUMBER/locations/LOCATION/liveConfigs/LIVE_CONFIG_ID",
  "adTracking": "SERVER"
}

C#

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 C# 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API C# API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


using Google.Cloud.Video.Stitcher.V1;

public class GetLiveSessionSample
{
    public LiveSession GetLiveSession(
        string projectId, string location, string sessionId)
    {
        // Create the client.
        VideoStitcherServiceClient client = VideoStitcherServiceClient.Create();

        GetLiveSessionRequest request = new GetLiveSessionRequest
        {
            LiveSessionName = LiveSessionName.FromProjectLocationLiveSession(projectId, location, sessionId)
        };

        // Call the API.
        LiveSession session = client.GetLiveSession(request);

        // Return the result.
        return session;
    }
}

Go

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Go 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Go API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

import (
	"context"
	"fmt"
	"io"

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

// getLiveSession gets a livestream session by ID.
func getLiveSession(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 := &stitcherpb.GetLiveSessionRequest{
		Name: fmt.Sprintf("projects/%s/locations/%s/liveSessions/%s", projectID, location, sessionID),
	}
	// Gets the session.
	response, err := client.GetLiveSession(ctx, req)
	if err != nil {
		return fmt.Errorf("client.GetLiveSession: %w", err)
	}

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

Java

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Java 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Java API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


import com.google.cloud.video.stitcher.v1.GetLiveSessionRequest;
import com.google.cloud.video.stitcher.v1.LiveSession;
import com.google.cloud.video.stitcher.v1.LiveSessionName;
import com.google.cloud.video.stitcher.v1.VideoStitcherServiceClient;
import java.io.IOException;

public class GetLiveSession {

  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";

    getLiveSession(projectId, location, sessionId);
  }

  // Gets a live session.
  public static LiveSession getLiveSession(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()) {
      GetLiveSessionRequest getLiveSessionRequest =
          GetLiveSessionRequest.newBuilder()
              .setName(LiveSessionName.of(projectId, location, sessionId).toString())
              .build();

      LiveSession response = videoStitcherServiceClient.getLiveSession(getLiveSessionRequest);
      System.out.println("Live session: " + response.getName());
      return response;
    }
  }
}

Node.js

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Node.js 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Node.js API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

/**
 * 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 getLiveSession() {
  // Construct request
  const request = {
    name: stitcherClient.liveSessionPath(projectId, location, sessionId),
  };
  const [session] = await stitcherClient.getLiveSession(request);
  console.log(`Live session: ${session.name}`);
}

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

PHP

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 PHP 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API PHP API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

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

/**
 * Gets a live 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_live_session(
    string $callingProjectId,
    string $location,
    string $sessionId
): void {
    // Instantiate a client.
    $stitcherClient = new VideoStitcherServiceClient();

    $formattedName = $stitcherClient->liveSessionName($callingProjectId, $location, $sessionId);
    $request = (new GetLiveSessionRequest())
        ->setName($formattedName);
    $session = $stitcherClient->getLiveSession($request);

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

Python

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Python 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Python API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证


import argparse

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


def get_live_session(
    project_id: str, location: str, session_id: str
) -> stitcher_v1.types.LiveSession:
    """Gets a live session. Live sessions are ephemeral resources that expire
    after a few minutes.
    Args:
        project_id: The GCP project ID.
        location: The location of the session.
        session_id: The ID of the live session.

    Returns:
        The live session resource.
    """

    client = VideoStitcherServiceClient()

    name = client.live_session_path(project_id, location, session_id)
    response = client.get_live_session(name=name)
    print(f"Live session: {response.name}")
    return response

Ruby

在试用此示例之前,请按照《Video Stitcher API 快速入门:使用客户端库》中的 Ruby 设置说明进行操作。 如需了解详情,请参阅 Video Stitcher API Ruby API 参考文档

如需向 Video Stitcher API 进行身份验证,请设置应用默认凭据。 如需了解详情,请参阅为本地开发环境设置身份验证

require "google/cloud/video/stitcher"

##
# Get a live session. Live sessions are ephemeral resources
# that expire after a few minutes.
#
# @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 live session ID (e.g. `my-live-session-id`)
#
def get_live_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 live session.
  name = client.live_session_path project: project_id, location: location,
                                  live_session: session_id

  # Get the live session.
  session = client.get_live_session name: name

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

示例插播广告的播放列表

以下显示了广告拼接之前的示例源直播播放列表:

#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-VERSION:4
#EXT-X-MEDIA-SEQUENCE:5
#EXTINF:10.010
segment_00005.ts
#EXTINF:10.010
segment_00006.ts
#EXT-X-DATERANGE:ID="2415919105",START-DATE="2021-06-22T08:32:00Z",DURATION=60,SCTE35-OUT=0xF...
#EXTINF:10.010
segment_00007.ts
#EXTINF:10.010
segment_00008.ts
#EXT-X-DATERANGE:ID="2415919105",START-DATE="2021-06-22T08:39:20Z",SCTE35-IN=0xF...
#EXTINF:10.010
segment_00009.ts

以下示例展示了广告拼接后的源直播播放列表:

#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-VERSION:4
#EXT-X-MEDIA-SEQUENCE:5
#EXTINF:10.010
segment_00005.ts
#EXTINF:10.010
segment_00006.ts
#EXT-X-DISCONTINUITY
#EXTINF:6.000
https://dai.google.com/.../ad-1/seg-1.ts
#EXTINF:5.000
https://dai.google.com/.../ad-1/seg-2.ts
#EXT-X-DISCONTINUITY
#EXTINF:6.000
https://dai.google.com/.../ad-2/seg-1.ts
#EXTINF:5.000
https://dai.google.com/.../ad-2/seg-2.ts
#EXT-X-DISCONTINUITY
#EXTINF:10.010
segment_00009.ts

检查由 Google Ad Manager 启用的实时会话

如需查看会话的广告代码详情,请使用 Ad Manager 中的视频流活动监控工具查看广告请求的详情。