创建实时配置

创建实时配置以应用于实时会话。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 创建和管理实时配置
• 在直播中插入广告

代码示例

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.Api.Gax.ResourceNames;
using Google.Cloud.Video.Stitcher.V1;
using Google.LongRunning;
using System.Threading.Tasks;

public class CreateLiveConfigSample
{
    public async Task<LiveConfig> CreateLiveConfigAsync(
        string projectId, string location, string liveConfigId, string sourceUri, string adTagUri, string slateId)
    {
        // Create the client.
        VideoStitcherServiceClient client = VideoStitcherServiceClient.Create();

        CreateLiveConfigRequest request = new CreateLiveConfigRequest
        {
            ParentAsLocationName = LocationName.FromProjectLocation(projectId, location),
            LiveConfigId = liveConfigId,
            LiveConfig = new LiveConfig
            {
                SourceUri = sourceUri,
                AdTagUri = adTagUri,
                DefaultSlate = SlateName.FormatProjectLocationSlate(projectId, location, slateId),
                AdTracking = AdTracking.Server,
                StitchingPolicy = LiveConfig.Types.StitchingPolicy.CutCurrent
            }
        };

        // Make the request.
        Operation<LiveConfig, OperationMetadata> response = await client.CreateLiveConfigAsync(request);

        // Poll until the returned long-running operation is complete.
        Operation<LiveConfig, OperationMetadata> completedResponse = await response.PollUntilCompletedAsync();

        // Retrieve the operation result.
        return completedResponse.Result;
    }
}

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

// createLiveConfig creates a live config. Live configs are used to configure live sessions.
func createLiveConfig(w io.Writer, projectID, liveConfigID, sourceURI, slateID string) error {
	// projectID := "my-project-id"
	// liveConfigID := "my-live-config-id"

	// Uri of the media to stitch; this URI must reference either an MPEG-DASH
	// manifest (.mpd) file or an M3U playlist manifest (.m3u8) file.
	// sourceURI := "https://storage.googleapis.com/my-bucket/main.mpd"

	// See https://cloud.google.com/video-stitcher/docs/concepts for information
	// on ad tags and ad metadata. This sample uses an ad tag URL that displays
	// a Single Inline Linear ad
	// (https://developers.google.com/interactive-media-ads/docs/sdks/html5/client-side/tags).
	adTagURI := "https://pubads.g.doubleclick.net/gampad/ads?iu=/21775744923/external/single_ad_samples&sz=640x480&cust_params=sample_ct%3Dlinear&ciu_szs=300x250%2C728x90&gdfp_req=1&output=vast&unviewed_position_start=1&env=vp&impl=s&correlator="
	// slateID := "my-slate-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.CreateLiveConfigRequest{
		Parent:       fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		LiveConfigId: liveConfigID,
		LiveConfig: &stitcherstreampb.LiveConfig{
			SourceUri:       sourceURI,
			AdTagUri:        adTagURI,
			AdTracking:      stitcherstreampb.AdTracking_SERVER,
			StitchingPolicy: stitcherstreampb.LiveConfig_CUT_CURRENT,
			DefaultSlate:    fmt.Sprintf("projects/%s/locations/%s/slates/%s", projectID, location, slateID),
		},
	}
	// Creates the live config.
	op, err := client.CreateLiveConfig(ctx, req)
	if err != nil {
		return fmt.Errorf("client.createLiveConfig: %w", err)
	}
	response, err := op.Wait(ctx)
	if err != nil {
		return err
	}

	fmt.Fprintf(w, "Live config: %v", response.GetName())
	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.AdTracking;
import com.google.cloud.video.stitcher.v1.CreateLiveConfigRequest;
import com.google.cloud.video.stitcher.v1.LiveConfig;
import com.google.cloud.video.stitcher.v1.LiveConfig.StitchingPolicy;
import com.google.cloud.video.stitcher.v1.LocationName;
import com.google.cloud.video.stitcher.v1.SlateName;
import com.google.cloud.video.stitcher.v1.VideoStitcherServiceClient;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class CreateLiveConfig {

  private static final int TIMEOUT_IN_MINUTES = 2;

  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";
    // Uri of the live stream to stitch; this URI must reference either an MPEG-DASH
    // manifest (.mpd) file or an M3U playlist manifest (.m3u8) file.
    String sourceUri = "https://storage.googleapis.com/my-bucket/main.mpd";
    // See Single Inline Linear
    // (https://developers.google.com/interactive-media-ads/docs/sdks/html5/client-side/tags)
    String adTagUri = "https://pubads.g.doubleclick.net/gampad/ads...";
    String slateId = "my-slate-id";

    createLiveConfig(projectId, location, liveConfigId, sourceUri, adTagUri, slateId);
  }

  public static void createLiveConfig(
      String projectId,
      String location,
      String liveConfigId,
      String sourceUri,
      String adTagUri,
      String slateId)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    VideoStitcherServiceClient videoStitcherServiceClient = VideoStitcherServiceClient.create();
    CreateLiveConfigRequest createLiveConfigRequest =
        CreateLiveConfigRequest.newBuilder()
            .setParent(LocationName.of(projectId, location).toString())
            .setLiveConfigId(liveConfigId)
            .setLiveConfig(
                LiveConfig.newBuilder()
                    .setSourceUri(sourceUri)
                    .setAdTagUri(adTagUri)
                    .setDefaultSlate(SlateName.format(projectId, location, slateId))
                    .setAdTracking(AdTracking.SERVER)
                    .setStitchingPolicy(StitchingPolicy.CUT_CURRENT)
                    .build())
            .build();

    LiveConfig response =
        videoStitcherServiceClient
            .createLiveConfigAsync(createLiveConfigRequest)
            .get(TIMEOUT_IN_MINUTES, TimeUnit.MINUTES);
    System.out.println("Created new live config: " + response.getName());
    videoStitcherServiceClient.close();
  }
}

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';
// sourceUri = 'https://storage.googleapis.com/my-bucket/main.mpd';
// See Single Inline Linear
// (https://developers.google.com/interactive-media-ads/docs/sdks/html5/client-side/tags)
// adTagUri = 'https://pubads.g.doubleclick.net/gampad/ads...';
// slateId = 'my-slate';

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

async function createLiveConfig() {
  // Construct request
  const request = {
    parent: stitcherClient.locationPath(projectId, location),
    liveConfig: {
      sourceUri: sourceUri,
      adTagUri: adTagUri,
      adTracking: 'SERVER',
      stitchingPolicy: 'CUT_CURRENT',
      defaultSlate: stitcherClient.slatePath(projectId, location, slateId),
    },
    liveConfigId: liveConfigId,
  };
  const [operation] = await stitcherClient.createLiveConfig(request);
  const [response] = await operation.promise();
  console.log(`response.name: ${response.name}`);
}

createLiveConfig();

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\AdTracking;
use Google\Cloud\Video\Stitcher\V1\Client\VideoStitcherServiceClient;
use Google\Cloud\Video\Stitcher\V1\CreateLiveConfigRequest;
use Google\Cloud\Video\Stitcher\V1\LiveConfig;

/**
 * Creates a live config. Live configs are used to configure live sessions.
 *
 * @param string $callingProjectId     The project ID to run the API call under
 * @param string $location             The location of the live config
 * @param string $liveConfigId         The name of the live config to be created
 * @param string $sourceUri            Uri of the media to stitch; this URI must
 *                                     reference either an MPEG-DASH manifest
 *                                     (.mpd) file or an M3U playlist manifest
 *                                     (.m3u8) file.
 * @param string $adTagUri             The Uri of the ad tag
 * @param string $slateId              The user-defined slate ID of the default
 *                                     slate to use when no slates are specified
 *                                     in an ad break's message
 */
function create_live_config(
    string $callingProjectId,
    string $location,
    string $liveConfigId,
    string $sourceUri,
    string $adTagUri,
    string $slateId
): void {
    // Instantiate a client.
    $stitcherClient = new VideoStitcherServiceClient();

    $parent = $stitcherClient->locationName($callingProjectId, $location);
    $defaultSlate = $stitcherClient->slateName($callingProjectId, $location, $slateId);

    $liveConfig = (new LiveConfig())
        ->setSourceUri($sourceUri)
        ->setAdTagUri($adTagUri)
        ->setAdTracking(AdTracking::SERVER)
        ->setStitchingPolicy(LiveConfig\StitchingPolicy::CUT_CURRENT)
        ->setDefaultSlate($defaultSlate);

    // Run live config creation request
    $request = (new CreateLiveConfigRequest())
        ->setParent($parent)
        ->setLiveConfigId($liveConfigId)
        ->setLiveConfig($liveConfig);
    $operationResponse = $stitcherClient->createLiveConfig($request);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        $result = $operationResponse->getResult();
        // Print results
        printf('Live config: %s' . PHP_EOL, $result->getName());
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
}

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_config(
    project_id: str,
    location: str,
    live_config_id: str,
    live_stream_uri: str,
    ad_tag_uri: str,
    slate_id: str,
) -> stitcher_v1.types.LiveConfig:
    """Creates a live config.
    Args:
        project_id: The GCP project ID.
        location: The location in which to create the live config.
        live_config_id: The user-defined live config ID.
        live_stream_uri: Uri of the livestream to stitch; this URI must reference either an MPEG-DASH
                    manifest (.mpd) file or an M3U playlist manifest (.m3u8) file.
        ad_tag_uri: Uri of the ad tag.
        slate_id: The user-defined slate ID of the default slate to use when no slates are specified in an ad break's message.

    Returns:
        The live config resource.
    """

    client = VideoStitcherServiceClient()

    parent = f"projects/{project_id}/locations/{location}"
    default_slate = f"projects/{project_id}/locations/{location}/slates/{slate_id}"

    live_config = stitcher_v1.types.LiveConfig(
        source_uri=live_stream_uri,
        ad_tag_uri=ad_tag_uri,
        ad_tracking="SERVER",
        stitching_policy="CUT_CURRENT",
        default_slate=default_slate,
    )

    operation = client.create_live_config(
        parent=parent, live_config_id=live_config_id, live_config=live_config
    )
    response = operation.result()
    print(f"Live config: {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 config
#
# @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")
# @param source_uri [String] Uri of the live stream to stitch
#   (e.g. "https://storage.googleapis.com/my-bucket/main.mpd")
# @param ad_tag_uri [String] Uri of the ad tag
#   (e.g. "https://pubads.g.doubleclick.net/gampad/ads...")
# @param slate_id [String] The default slate ID to use when no slates are
#   specified in an ad break's message (e.g. "my-slate-id")
#
def create_live_config project_id:, location:, live_config_id:, source_uri:,
                       ad_tag_uri:, slate_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 default slate.
  slate_name = client.slate_path project: project_id, location: location,
                                 slate: slate_id

  # Set the live config fields.
  new_live_config = {
    source_uri: source_uri,
    ad_tag_uri: ad_tag_uri,
    ad_tracking: Google::Cloud::Video::Stitcher::V1::AdTracking::SERVER,
    stitching_policy: Google::Cloud::Video::Stitcher::V1::LiveConfig::StitchingPolicy::CUT_CURRENT,
    default_slate: slate_name
  }

  operation = client.create_live_config parent: parent,
                                        live_config_id: live_config_id,
                                        live_config: new_live_config

  # The returned object is of type Gapic::Operation. You can use this
  # object to check the status of an operation, cancel it, or wait
  # for results. Here is how to block until completion:
  operation.wait_until_done!

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

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。