始める前に

このページでは、Google Cloud プロジェクトを作成し、Live Stream API を有効にして、認証情報を作成し、アカウントに 1 つ以上のIAM のロールを付与する方法について説明します。。 また、ライブ ストリーム出力ファイルを保持する Cloud Storage バケットを作成する方法と、API が処理する入力ストリームを生成するエンコーダをインストールする方法についても説明します。

プロジェクトを作成する

1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.
2. Install the Google Cloud CLI.

3. To initialize the gcloud CLI, run the following command:

   gcloud init

4. Create or select a Google Cloud project.

   Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

   • Create a Google Cloud project:

     gcloud projects create PROJECT_ID

     Replace PROJECT_ID with a name for the Google Cloud project you are creating.

   • Select the Google Cloud project that you created:

     gcloud config set project PROJECT_ID

     Replace PROJECT_ID with your Google Cloud project name.

5. Make sure that billing is enabled for your Google Cloud project.

6. Enable the Live Stream API:

   gcloud services enable livestream.googleapis.com

7. If you're using a local shell, then create local authentication credentials for your user account:

   gcloud auth application-default login

   You don't need to do this if you're using Cloud Shell.

8. Grant roles to your user account. Run the following command once for each of the following IAM roles: roles/livestream.editor

   gcloud projects add-iam-policy-binding PROJECT_ID --member="USER_IDENTIFIER" --role=ROLE

   • Replace PROJECT_ID with your project ID.

   • Replace USER_IDENTIFIER with the identifier for your user account. For example, user:[e-mail].

   • Replace ROLE with each individual role.
9. Install the Google Cloud CLI.

10. To initialize the gcloud CLI, run the following command:

    gcloud init

11. Create or select a Google Cloud project.

    Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

    • Create a Google Cloud project:

      gcloud projects create PROJECT_ID

      Replace PROJECT_ID with a name for the Google Cloud project you are creating.

    • Select the Google Cloud project that you created:

      gcloud config set project PROJECT_ID

      Replace PROJECT_ID with your Google Cloud project name.

12. Make sure that billing is enabled for your Google Cloud project.

13. Enable the Live Stream API:

    gcloud services enable livestream.googleapis.com

14. If you're using a local shell, then create local authentication credentials for your user account:

    gcloud auth application-default login

    You don't need to do this if you're using Cloud Shell.

15. Grant roles to your user account. Run the following command once for each of the following IAM roles: roles/livestream.editor

    gcloud projects add-iam-policy-binding PROJECT_ID --member="USER_IDENTIFIER" --role=ROLE

    • Replace PROJECT_ID with your project ID.

    • Replace USER_IDENTIFIER with the identifier for your user account. For example, user:[e-mail].

    • Replace ROLE with each individual role.

注: IAM ロール roles/storage.admin を Google アカウントに追加して、プロジェクトの Cloud Storage バケットをより詳細に制御できます。

Cloud Storage バケットを作成する

ライブ ストリームのマニフェスト ファイルとセグメント ファイルを保持する Cloud Storage バケットを作成します。

Google Cloud コンソール

1. In the Google Cloud console, go to the Cloud Storage Buckets page.

   Go to Buckets page

2. Click Create bucket.
3. On the Create a bucket page, enter your bucket information. To go to the next step, click Continue.
   • For Name your bucket, enter a name that meets the bucket naming requirements.
   • For Choose where to store your data, do the following:
     • Select a Location type option.
     • Select a Location option.
   • For Choose a default storage class for your data, select the following: Standard.
   • For Choose how to control access to objects, select an Access control option.
   • For Advanced settings (optional), specify an encryption method, a retention policy, or bucket labels.
4. Click Create.

コマンドライン

Create a Cloud Storage bucket:

gcloud storage buckets create gs://BUCKET_NAME

Replace BUCKET_NAME with a bucket name that meets the bucket naming requirements.

エンコーダをインストールする

API を使用するには、API によって処理される入力ストリームを生成するエンコーダが必要です。

このページでは、ffmpeg を使用して入力ストリームを生成する方法を説明しているので、ffmpeg をインストールします。 これは、次の場所でCloud Shell で次のコマンドを使用してインストールできます。

sudo apt install ffmpeg