Sprite Sheet aus Videoframes generieren

Auf dieser Seite wird erläutert, wie Sie ein Sprite Sheet generieren, das Frames aus einem von Ihnen transcodierten Video enthält. Diese Frames, auch Thumbnails genannt, sind nützlich, um Inhalte zu organisieren und in der Vorschau anzuzeigen. Zum Erstellen des Sprite Sheets verwenden Sie das Array spriteSheets in der Vorlage JobConfig.

Zum Erstellen des Sprite Sheets gibt es zwei Möglichkeiten:

Eine Reihe von Miniaturansichten generieren

Die folgende Konfiguration generiert ein 10-x-10-Sprite-Sprite bei großen Bildern und ein 10-x-10-Sprite-Schicht mit kleinen Bildern mit jeweils 100 Thumbnails.

Sie können diese Konfiguration in eine Jobvorlage einfügen oder in eine Ad-hoc-Jobkonfiguration aufnehmen:

REST UND BEFEHLSZEILE

Ersetzen Sie diese Werte in den folgenden Anfragedaten:

  • PROJECT_ID: Ihre Google Cloud-Projekt-ID, die unter IAM-Einstellungen aufgeführt ist.
  • LOCATION: Der Standort, an dem der Job ausgeführt werden soll. Verwenden Sie eine der unterstützten Regionen:
    • us-central1
    • us-west1
    • us-west2
    • us-east1
    • us-east4
    • southamerica-east1
    • asia-east1
    • asia-south1
    • asia-southeast1
    • europe-west1
    • europe-west2
    • europe-west4
  • GCS_BUCKET_NAME: Der Name des Cloud Storage-Buckets, den Sie erstellt haben.
  • GCS_INPUT_VIDEO: Der Name des Videos in Ihrem Cloud Storage-Bucket, den Sie transcodieren, z. B. my-vid.mp4. In diesem Feld sollten alle Ordner berücksichtigt werden, die Sie im Bucket erstellt haben (z. B. input/my-vid.mp4).
  • GCS_OUTPUT_FOLDER: Der Name des Cloud Storage-Ordners, in dem die codierten Videoausgaben gespeichert werden sollen.

JSON-Text der Anfrage:

{
  "config": {
    "inputs": [
          {
            "key": "input0",
            "uri": "gs://GCS_BUCKET_NAME/GCS_INPUT_VIDEO"
          }
        ],
    "elementaryStreams": [
      {
        "key": "video-stream0",
        "videoStream": {
          "h264": {
            "heightPixels": 360,
            "widthPixels": 640,
            "bitrateBps": 550000,
            "frameRate": 60
          }
        }
      },
      {
        "key": "audio-stream0",
        "audioStream": {
          "codec": "aac",
          "bitrateBps": 64000
        }
      }
    ],
    "muxStreams": [
      {
        "key": "sd",
        "container": "mp4",
        "elementaryStreams": [
          "video-stream0",
          "audio-stream0"
        ]
      }
    ],
    "output": {
      "uri": "gs://GCS_BUCKET_NAME/GCS_OUTPUT_FOLDER/"
    },
    "spriteSheets": [
      {
        "filePrefix": "small-sprite-sheet",
        "spriteHeightPixels": 32,
        "spriteWidthPixels": 64,
        "columnCount": 10,
        "rowCount": 10,
        "totalCount": 100
      },
      {
        "filePrefix": "large-sprite-sheet",
        "spriteHeightPixels": 72,
        "spriteWidthPixels": 128,
        "columnCount": 10,
        "rowCount": 10,
        "totalCount": 100
      }
    ]
  }
}

Wenn Sie die Anfrage senden möchten, maximieren Sie eine der folgenden Optionen:

Sie sollten eine JSON-Antwort ähnlich wie diese erhalten:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/jobs/JOB_ID",
  "config": {
   ...
  },
  "state": "PENDING",
  "createTime": CREATE_TIME,
  "ttlAfterCompletionDays": 30
}

C#

Richten Sie für dieses Beispiel C# wie in der Transcoder API-Kurzanleitung mit Clientbibliotheken beschrieben ein. Weitere Informationen finden Sie in der C# API-Referenzdokumentation zur Transcoder API.


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

public class CreateJobWithSetNumberImagesSpritesheetSample
{
    public const string SmallSpritesheetFilePrefix = "small-sprite-sheet";
    public const string LargeSpritesheetFilePrefix = "large-sprite-sheet";
    public Job CreateJobWithSetNumberImagesSpritesheet(
        string projectId, string location, string inputUri, string outputUri)
    {
        // Create the client.
        TranscoderServiceClient client = TranscoderServiceClient.Create();

        // Build the parent location name.
        LocationName parent = new LocationName(projectId, location);

        // Build the job config.
        VideoStream videoStream0 = new VideoStream
        {
            H264 = new VideoStream.Types.H264CodecSettings
            {
                BitrateBps = 550000,
                FrameRate = 60,
                HeightPixels = 360,
                WidthPixels = 640
            }
        };

        AudioStream audioStream0 = new AudioStream
        {
            Codec = "aac",
            BitrateBps = 64000
        };

        // Generates a 10x10 spritesheet of small images from the input video.
        // To preserve the source aspect ratio, you should set the
        // SpriteWidthPixels field or the SpriteHeightPixels field, but not
        // both (the API will automatically calculate the missing field). For
        // this sample, we don't care about the aspect ratio so we set both
        // fields.
        SpriteSheet smallSpriteSheet = new SpriteSheet
        {
            FilePrefix = SmallSpritesheetFilePrefix,
            SpriteHeightPixels = 32,
            SpriteWidthPixels = 64,
            ColumnCount = 10,
            RowCount = 10,
            TotalCount = 100
        };

        // Generates a 10x10 spritesheet of larger images from the input video.
        // input video. To preserve the source aspect ratio, you should set the
        // SpriteWidthPixels field or the SpriteHeightPixels field, but not
        // both (the API will automatically calculate the missing field). For
        // this sample, we don't care about the aspect ratio so we set both
        // fields.
        SpriteSheet largeSpriteSheet = new SpriteSheet
        {
            FilePrefix = LargeSpritesheetFilePrefix,
            SpriteHeightPixels = 72,
            SpriteWidthPixels = 128,
            ColumnCount = 10,
            RowCount = 10,
            TotalCount = 100
        };

        ElementaryStream elementaryStream0 = new ElementaryStream
        {
            Key = "video_stream0",
            VideoStream = videoStream0
        };

        ElementaryStream elementaryStream1 = new ElementaryStream
        {
            Key = "audio_stream0",
            AudioStream = audioStream0
        };

        MuxStream muxStream0 = new MuxStream
        {
            Key = "sd",
            Container = "mp4",
            ElementaryStreams = { "video_stream0", "audio_stream0" }
        };

        Input input = new Input
        {
            Key = "input0",
            Uri = inputUri
        };

        Output output = new Output
        {
            Uri = outputUri
        };

        JobConfig jobConfig = new JobConfig
        {
            Inputs = { input },
            Output = output,
            ElementaryStreams = { elementaryStream0, elementaryStream1 },
            MuxStreams = { muxStream0 },
            SpriteSheets = { smallSpriteSheet, largeSpriteSheet }
        };

        // Build the job.
        Job newJob = new Job();
        newJob.InputUri = inputUri;
        newJob.OutputUri = outputUri;
        newJob.Config = jobConfig;

        // Call the API.
        Job job = client.CreateJob(parent, newJob);

        // Return the result.
        return job;
    }
}

Go

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Go in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Go API.

import (
	"context"
	"fmt"
	"io"

	transcoder "cloud.google.com/go/video/transcoder/apiv1"
	transcoderpb "google.golang.org/genproto/googleapis/cloud/video/transcoder/v1"
)

// createJobWithSetNumberImagesSpritesheet creates a job from an ad-hoc configuration and generates
// two spritesheets from the input video. Each spritesheet contains a set number of images.
func createJobWithSetNumberImagesSpritesheet(w io.Writer, projectID string, location string, inputURI string, outputURI string) error {
	// projectID := "my-project-id"
	// location := "us-central1"
	// inputURI := "gs://my-bucket/my-video-file"
	// outputURI := "gs://my-bucket/my-output-folder/"
	ctx := context.Background()
	client, err := transcoder.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("NewClient: %v", err)
	}
	defer client.Close()

	req := &transcoderpb.CreateJobRequest{
		Parent: fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		Job: &transcoderpb.Job{
			InputUri:  inputURI,
			OutputUri: outputURI,
			JobConfig: &transcoderpb.Job_Config{
				Config: &transcoderpb.JobConfig{
					ElementaryStreams: []*transcoderpb.ElementaryStream{
						&transcoderpb.ElementaryStream{
							Key: "video_stream0",
							ElementaryStream: &transcoderpb.ElementaryStream_VideoStream{
								VideoStream: &transcoderpb.VideoStream{
									CodecSettings: &transcoderpb.VideoStream_H264{
										H264: &transcoderpb.VideoStream_H264CodecSettings{
											BitrateBps:   550000,
											FrameRate:    60,
											HeightPixels: 360,
											WidthPixels:  640,
										},
									},
								},
							},
						},
						&transcoderpb.ElementaryStream{
							Key: "audio_stream0",
							ElementaryStream: &transcoderpb.ElementaryStream_AudioStream{
								AudioStream: &transcoderpb.AudioStream{
									Codec:      "aac",
									BitrateBps: 64000,
								},
							},
						},
					},
					MuxStreams: []*transcoderpb.MuxStream{
						&transcoderpb.MuxStream{
							Key:               "sd",
							Container:         "mp4",
							ElementaryStreams: []string{"video_stream0", "audio_stream0"},
						},
					},
					SpriteSheets: []*transcoderpb.SpriteSheet{
						&transcoderpb.SpriteSheet{
							FilePrefix:         "small-sprite-sheet",
							SpriteWidthPixels:  64,
							SpriteHeightPixels: 32,
							ColumnCount:        10,
							RowCount:           10,
							ExtractionStrategy: &transcoderpb.SpriteSheet_TotalCount{
								TotalCount: 100,
							},
						},
						&transcoderpb.SpriteSheet{
							FilePrefix:         "large-sprite-sheet",
							SpriteWidthPixels:  128,
							SpriteHeightPixels: 72,
							ColumnCount:        10,
							RowCount:           10,
							ExtractionStrategy: &transcoderpb.SpriteSheet_TotalCount{
								TotalCount: 100,
							},
						},
					},
				},
			},
		},
	}
	// Creates the job. Jobs take a variable amount of time to run. You can query for the job state.
	// See https://cloud.google.com/transcoder/docs/how-to/jobs#check_job_status for more info.
	response, err := client.CreateJob(ctx, req)
	if err != nil {
		return fmt.Errorf("createJobWithSetNumberImagesSpritesheet: %v", err)
	}

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

Java

Richten Sie für dieses Beispiel Java wie in der Kurzanleitung zur Verwendung der Clientbibliotheken mit der Transcoder API beschrieben ein. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Java API.


import com.google.cloud.video.transcoder.v1.AudioStream;
import com.google.cloud.video.transcoder.v1.CreateJobRequest;
import com.google.cloud.video.transcoder.v1.ElementaryStream;
import com.google.cloud.video.transcoder.v1.Input;
import com.google.cloud.video.transcoder.v1.Job;
import com.google.cloud.video.transcoder.v1.JobConfig;
import com.google.cloud.video.transcoder.v1.LocationName;
import com.google.cloud.video.transcoder.v1.MuxStream;
import com.google.cloud.video.transcoder.v1.Output;
import com.google.cloud.video.transcoder.v1.SpriteSheet;
import com.google.cloud.video.transcoder.v1.TranscoderServiceClient;
import com.google.cloud.video.transcoder.v1.VideoStream;
import java.io.IOException;

public class CreateJobWithSetNumberImagesSpritesheet {

  public static final String smallSpritesheetFilePrefix = "small-sprite-sheet";
  public static final String largeSpritesheetFilePrefix = "large-sprite-sheet";
  public static final String spritesheetFileSuffix = "0000000000.jpeg";

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String location = "us-central1";
    String inputUri = "gs://my-bucket/my-video-file";
    String outputUri = "gs://my-bucket/my-output-folder/";

    createJobWithSetNumberImagesSpritesheet(projectId, location, inputUri, outputUri);
  }

  // Creates a job from an ad-hoc configuration and generates two spritesheets from the input video.
  // Each spritesheet contains a set number of images.
  public static void createJobWithSetNumberImagesSpritesheet(
      String projectId, String location, String inputUri, String outputUri) 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 (TranscoderServiceClient transcoderServiceClient = TranscoderServiceClient.create()) {

      VideoStream videoStream0 =
          VideoStream.newBuilder()
              .setH264(
                  VideoStream.H264CodecSettings.newBuilder()
                      .setBitrateBps(550000)
                      .setFrameRate(60)
                      .setHeightPixels(360)
                      .setWidthPixels(640))
              .build();

      AudioStream audioStream0 =
          AudioStream.newBuilder().setCodec("aac").setBitrateBps(64000).build();

      // Generates a 10x10 spritesheet of small images from the input video. To preserve the source
      // aspect ratio, you should set the spriteWidthPixels field or the spriteHeightPixels
      // field, but not both.
      SpriteSheet smallSpriteSheet =
          SpriteSheet.newBuilder()
              .setFilePrefix(smallSpritesheetFilePrefix)
              .setSpriteHeightPixels(32)
              .setSpriteWidthPixels(64)
              .setColumnCount(10)
              .setRowCount(10)
              .setTotalCount(100)
              .build();

      // Generates a 10x10 spritesheet of larger images from the input video.
      SpriteSheet largeSpriteSheet =
          SpriteSheet.newBuilder()
              .setFilePrefix(largeSpritesheetFilePrefix)
              .setSpriteHeightPixels(72)
              .setSpriteWidthPixels(128)
              .setColumnCount(10)
              .setRowCount(10)
              .setTotalCount(100)
              .build();

      JobConfig config =
          JobConfig.newBuilder()
              .addInputs(Input.newBuilder().setKey("input0").setUri(inputUri))
              .setOutput(Output.newBuilder().setUri(outputUri))
              .addElementaryStreams(
                  ElementaryStream.newBuilder()
                      .setKey("video_stream0")
                      .setVideoStream(videoStream0))
              .addElementaryStreams(
                  ElementaryStream.newBuilder()
                      .setKey("audio_stream0")
                      .setAudioStream(audioStream0))
              .addMuxStreams(
                  MuxStream.newBuilder()
                      .setKey("sd")
                      .setContainer("mp4")
                      .addElementaryStreams("video_stream0")
                      .addElementaryStreams("audio_stream0")
                      .build())
              .addSpriteSheets(smallSpriteSheet) // Add the spritesheet config to the job config
              .addSpriteSheets(largeSpriteSheet) // Add the spritesheet config to the job config
              .build();

      var createJobRequest =
          CreateJobRequest.newBuilder()
              .setJob(
                  Job.newBuilder()
                      .setInputUri(inputUri)
                      .setOutputUri(outputUri)
                      .setConfig(config)
                      .build())
              .setParent(LocationName.of(projectId, location).toString())
              .build();

      // Send the job creation request and process the response.
      Job job = transcoderServiceClient.createJob(createJobRequest);
      System.out.println("Job: " + job.getName());
    }
  }
}

Node.js

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Node.js in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Node.js API.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// projectId = 'my-project-id';
// location = 'us-central1';
// inputUri = 'gs://my-bucket/my-video-file';
// outputUri = 'gs://my-bucket/my-output-folder/';

// Imports the Transcoder library
const {TranscoderServiceClient} =
  require('@google-cloud/video-transcoder').v1;

// Instantiates a client
const transcoderServiceClient = new TranscoderServiceClient();

async function createJobWithSetNumberImagesSpritesheet() {
  // Construct request
  const request = {
    parent: transcoderServiceClient.locationPath(projectId, location),
    job: {
      inputUri: inputUri,
      outputUri: outputUri,
      config: {
        elementaryStreams: [
          {
            key: 'video-stream0',
            videoStream: {
              h264: {
                heightPixels: 360,
                widthPixels: 640,
                bitrateBps: 550000,
                frameRate: 60,
              },
            },
          },
          {
            key: 'audio-stream0',
            audioStream: {
              codec: 'aac',
              bitrateBps: 64000,
            },
          },
        ],
        muxStreams: [
          {
            key: 'sd',
            container: 'mp4',
            elementaryStreams: ['video-stream0', 'audio-stream0'],
          },
        ],
        spriteSheets: [
          {
            filePrefix: 'small-sprite-sheet',
            spriteHeightPixels: 32,
            spriteWidthPixels: 64,
            columnCount: 10,
            rowCount: 10,
            totalCount: 100,
          },
          {
            filePrefix: 'large-sprite-sheet',
            spriteHeightPixels: 72,
            spriteWidthPixels: 128,
            columnCount: 10,
            rowCount: 10,
            totalCount: 100,
          },
        ],
      },
    },
  };

  // Run request
  const [response] = await transcoderServiceClient.createJob(request);
  console.log(`Job: ${response.name}`);
}

createJobWithSetNumberImagesSpritesheet();

PHP

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von PHP in der Kurzanleitung zur Verwendung der Clientbibliotheken mit der Transcoder API. Weitere Informationen finden Sie in der PHP API-Referenzdokumentation zur Transcoder API.

use Google\Cloud\Video\Transcoder\V1\AudioStream;
use Google\Cloud\Video\Transcoder\V1\ElementaryStream;
use Google\Cloud\Video\Transcoder\V1\Job;
use Google\Cloud\Video\Transcoder\V1\JobConfig;
use Google\Cloud\Video\Transcoder\V1\MuxStream;
use Google\Cloud\Video\Transcoder\V1\SpriteSheet;
use Google\Cloud\Video\Transcoder\V1\TranscoderServiceClient;
use Google\Cloud\Video\Transcoder\V1\VideoStream;

/**
 * Creates a job that generates two spritesheets from the input video. Each
 * spritesheet contains a set number of images.
 *
 * @param string $projectId The ID of your Google Cloud Platform project.
 * @param string $location The location of the job.
 * @param string $inputUri Uri of the video in the Cloud Storage bucket.
 * @param string $outputUri Uri of the video output folder in the Cloud Storage bucket.
 */
function create_job_with_set_number_images_spritesheet($projectId, $location, $inputUri, $outputUri)
{
    // Instantiate a client.
    $transcoderServiceClient = new TranscoderServiceClient();

    $formattedParent = $transcoderServiceClient->locationName($projectId, $location);
    $jobConfig =
        (new JobConfig())->setElementaryStreams([
            (new ElementaryStream())
                ->setKey('video-stream0')
                ->setVideoStream(
                    (new VideoStream())
                        ->setH264(
                            (new VideoStream\H264CodecSettings())
                                ->setBitrateBps(550000)
                                ->setFrameRate(60)
                                ->setHeightPixels(360)
                                ->setWidthPixels(640)
                        )
                ),
            (new ElementaryStream())
                ->setKey('audio-stream0')
                ->setAudioStream(
                    (new AudioStream())
                        ->setCodec('aac')
                        ->setBitrateBps(64000)
                )
        ])->setMuxStreams([
            (new MuxStream())
                ->setKey('sd')
                ->setContainer('mp4')
                ->setElementaryStreams(['video-stream0', 'audio-stream0'])
        ])->setSpriteSheets([
            (new SpriteSheet())
                ->setFilePrefix('small-sprite-sheet')
                ->setSpriteWidthPixels(64)
                ->setSpriteHeightPixels(32)
                ->setColumnCount(10)
                ->setRowCount(10)
                ->setTotalCount(100),
            (new SpriteSheet())
                ->setFilePrefix('large-sprite-sheet')
                ->setSpriteWidthPixels(128)
                ->setSpriteHeightPixels(72)
                ->setColumnCount(10)
                ->setRowCount(10)
                ->setTotalCount(100)
        ]);

    $job = (new Job())
        ->setInputUri($inputUri)
        ->setOutputUri($outputUri)
        ->setConfig($jobConfig);

    $response = $transcoderServiceClient->createJob($formattedParent, $job);

    // Print job name.
    printf('Job: %s' . PHP_EOL, $response->getName());
}

Python

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Python in der Transcoder API-Kurzanleitung mit Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Python API.


import argparse

from google.cloud.video import transcoder_v1
from google.cloud.video.transcoder_v1.services.transcoder_service import (
    TranscoderServiceClient,
)

def create_job_with_set_number_images_spritesheet(
    project_id, location, input_uri, output_uri
):
    """Creates a job based on an ad-hoc job configuration that generates two spritesheets.

    Args:
        project_id: The GCP project ID.
        location: The location to start the job in.
        input_uri: Uri of the video in the Cloud Storage bucket.
        output_uri: Uri of the video output folder in the Cloud Storage bucket."""

    client = TranscoderServiceClient()

    parent = f"projects/{project_id}/locations/{location}"
    job = transcoder_v1.types.Job()
    job.input_uri = input_uri
    job.output_uri = output_uri
    job.config = transcoder_v1.types.JobConfig(
        # Create an ad-hoc job. For more information, see https://cloud.google.com/transcoder/docs/how-to/jobs#create_jobs_ad_hoc.
        # See all options for the job config at https://cloud.google.com/transcoder/docs/reference/rest/v1beta1/JobConfig.
        elementary_streams=[
            # This section defines the output video stream.
            transcoder_v1.types.ElementaryStream(
                key="video-stream0",
                video_stream=transcoder_v1.types.VideoStream(
                    h264=transcoder_v1.types.VideoStream.H264CodecSettings(
                        height_pixels=360,
                        width_pixels=640,
                        bitrate_bps=550000,
                        frame_rate=60,
                    ),
                ),
            ),
            # This section defines the output audio stream.
            transcoder_v1.types.ElementaryStream(
                key="audio-stream0",
                audio_stream=transcoder_v1.types.AudioStream(
                    codec="aac", bitrate_bps=64000
                ),
            ),
        ],
        # This section multiplexes the output audio and video together into a container.
        mux_streams=[
            transcoder_v1.types.MuxStream(
                key="sd",
                container="mp4",
                elementary_streams=["video-stream0", "audio-stream0"],
            ),
        ],
        # Generate two sprite sheets from the input video into the GCS bucket. For more information, see
        # https://cloud.google.com/transcoder/docs/how-to/generate-spritesheet#generate_set_number_of_images.
        sprite_sheets=[
            # Generate a 10x10 sprite sheet with 64x32px images.
            transcoder_v1.types.SpriteSheet(
                file_prefix="small-sprite-sheet",
                sprite_width_pixels=64,
                sprite_height_pixels=32,
                column_count=10,
                row_count=10,
                total_count=100,
            ),
            # Generate a 10x10 sprite sheet with 128x72px images.
            transcoder_v1.types.SpriteSheet(
                file_prefix="large-sprite-sheet",
                sprite_width_pixels=128,
                sprite_height_pixels=72,
                column_count=10,
                row_count=10,
                total_count=100,
            ),
        ],
    )
    response = client.create_job(parent=parent, job=job)
    print(f"Job: {response.name}")
    return response

Ruby

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Ruby in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Ruby API-Referenzdokumentation zur Transcoder API.

# project_id  = "YOUR-GOOGLE-CLOUD-PROJECT"  # (e.g. "my-project")
# location    = "YOUR-JOB-LOCATION"  # (e.g. "us-central1")
# input_uri   = "YOUR-GCS-INPUT-VIDEO"  # (e.g. "gs://my-bucket/my-video-file")
# output_uri  = "YOUR-GCS-OUTPUT-FOLDER/"  # (e.g. "gs://my-bucket/my-output-folder/")

# Require the Transcoder client library.
require "google/cloud/video/transcoder"

# Create a Transcoder client.
client = Google::Cloud::Video::Transcoder.transcoder_service

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

# Build the job config.
new_job = {
  input_uri: input_uri,
  output_uri: output_uri,
  config: {
    elementary_streams: [
      {
        key: "video-stream0",
        video_stream: {
          h264: {
            height_pixels: 360,
            width_pixels: 640,
            bitrate_bps: 550_000,
            frame_rate: 60
          }
        }
      },
      {
        key: "audio-stream0",
        audio_stream: {
          codec: "aac",
          bitrate_bps: 64_000
        }
      }
    ],
    mux_streams: [
      {
        key: "sd",
        container: "mp4",
        elementary_streams: [
          "video-stream0",
          "audio-stream0"
        ]
      }
    ],
    sprite_sheets: [
      {
        file_prefix: "small-sprite-sheet",
        sprite_width_pixels: 64,
        sprite_height_pixels: 32,
        column_count: 10,
        row_count: 10,
        total_count: 100
      },
      {
        file_prefix: "large-sprite-sheet",
        sprite_width_pixels: 128,
        sprite_height_pixels: 72,
        column_count: 10,
        row_count: 10,
        total_count: 100
      }
    ]
  }
}

job = client.create_job parent: parent, job: new_job

# Print the job name.
puts "Job: #{job.name}"

Verwenden Sie diese Konfiguration für das Beispielvideo, um die folgenden Sprite Sheets zu generieren:

Kleines Bild Sprite Sheet
Abbildung 1: Kleines Bild Sprite Sheet (100 Thumbnails)

Großes Bild Sprite Sheet
Abbildung 2: Großes Bild Sprite Sheet (100 Thumbnails)

Regelmäßig Miniaturansichten erstellen

Die folgende Konfiguration generiert ein Sprite Sheet mit kleinen Bildern und ein Sprite Sheet mit großen Bildern. Jedes Sprite Sheet enthält Miniaturansichten, die alle 7 Sekunden im Eingabevideo generiert wurden.

Sie können diese Konfiguration in eine Jobvorlage einfügen oder in eine Ad-hoc-Jobkonfiguration aufnehmen:

REST UND BEFEHLSZEILE

Ersetzen Sie diese Werte in den folgenden Anfragedaten:

  • PROJECT_ID: Ihre Google Cloud-Projekt-ID, die unter IAM-Einstellungen aufgeführt ist.
  • LOCATION: Der Standort, an dem der Job ausgeführt werden soll. Verwenden Sie eine der unterstützten Regionen:
    • us-central1
    • us-west1
    • us-west2
    • us-east1
    • us-east4
    • southamerica-east1
    • asia-east1
    • asia-south1
    • asia-southeast1
    • europe-west1
    • europe-west2
    • europe-west4
  • GCS_BUCKET_NAME: Der Name des Cloud Storage-Buckets, den Sie erstellt haben.
  • GCS_INPUT_VIDEO: Der Name des Videos in Ihrem Cloud Storage-Bucket, den Sie transcodieren, z. B. my-vid.mp4. In diesem Feld sollten alle Ordner berücksichtigt werden, die Sie im Bucket erstellt haben (z. B. input/my-vid.mp4).
  • GCS_OUTPUT_FOLDER: Der Name des Cloud Storage-Ordners, in dem die codierten Videoausgaben gespeichert werden sollen.

JSON-Text der Anfrage:

{
  "config": {
    "inputs": [
          {
            "key": "input0",
            "uri": "gs://GCS_BUCKET_NAME/GCS_INPUT_VIDEO"
          }
        ],
    "elementaryStreams": [
      {
        "key": "video-stream0",
        "videoStream": {
          "h264": {
            "heightPixels": 360,
            "widthPixels": 640,
            "bitrateBps": 550000,
            "frameRate": 60
          }
        }
      },
      {
        "key": "audio-stream0",
        "audioStream": {
          "codec": "aac",
          "bitrateBps": 64000
        }
      }
    ],
    "muxStreams": [
      {
        "key": "sd",
        "container": "mp4",
        "elementaryStreams": [
          "video-stream0",
          "audio-stream0"
        ]
      }
    ],
    "output": {
      "uri": "gs://GCS_BUCKET_NAME/GCS_OUTPUT_FOLDER/"
    },
    "spriteSheets": [
      {
        "filePrefix": "small-sprite-sheet",
        "spriteHeightPixels": 32,
        "spriteWidthPixels": 64,
        "interval": "7s"
      },
      {
        "filePrefix": "large-sprite-sheet",
        "spriteHeightPixels": 72,
        "spriteWidthPixels": 128,
        "interval": "7s"
      }
    ]
  }
}

Wenn Sie die Anfrage senden möchten, maximieren Sie eine der folgenden Optionen:

Sie sollten eine JSON-Antwort ähnlich wie diese erhalten:

{
  "name": "projects/PROJECT_NUMBER/locations/LOCATION/jobs/JOB_ID",
  "config": {
   ...
  },
  "state": "PENDING",
  "createTime": CREATE_TIME,
  "ttlAfterCompletionDays": 30
}

C#

Richten Sie für dieses Beispiel C# wie in der Transcoder API-Kurzanleitung mit Clientbibliotheken beschrieben ein. Weitere Informationen finden Sie in der C# API-Referenzdokumentation zur Transcoder API.


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

public class CreateJobWithPeriodicImagesSpritesheetSample
{
    public const string SmallSpritesheetFilePrefix = "small-sprite-sheet";
    public const string LargeSpritesheetFilePrefix = "large-sprite-sheet";
    public Job CreateJobWithPeriodicImagesSpritesheet(
        string projectId, string location, string inputUri, string outputUri)
    {
        // Create the client.
        TranscoderServiceClient client = TranscoderServiceClient.Create();

        // Build the parent location name.
        LocationName parent = new LocationName(projectId, location);

        // Build the job config.
        VideoStream videoStream0 = new VideoStream
        {
            H264 = new VideoStream.Types.H264CodecSettings
            {
                BitrateBps = 550000,
                FrameRate = 60,
                HeightPixels = 360,
                WidthPixels = 640
            }
        };

        AudioStream audioStream0 = new AudioStream
        {
            Codec = "aac",
            BitrateBps = 64000
        };

        // Generates a spritesheet of small images taken periodically from the
        // input video. To preserve the source aspect ratio, you should set the
        // SpriteWidthPixels field or the SpriteHeightPixels field, but not
        // both (the API will automatically calculate the missing field). For
        // this sample, we don't care about the aspect ratio so we set both
        // fields.
        SpriteSheet smallSpriteSheet = new SpriteSheet
        {
            FilePrefix = SmallSpritesheetFilePrefix,
            SpriteHeightPixels = 32,
            SpriteWidthPixels = 64,
            Interval = new Google.Protobuf.WellKnownTypes.Duration
            {
                Seconds = 7
            }
        };

        // Generates a spritesheet of larger images taken periodically from the
        // input video. To preserve the source aspect ratio, you should set the
        // SpriteWidthPixels field or the SpriteHeightPixels field, but not
        // both (the API will automatically calculate the missing field). For
        // this sample, we don't care about the aspect ratio so we set both
        // fields.
        SpriteSheet largeSpriteSheet = new SpriteSheet
        {
            FilePrefix = LargeSpritesheetFilePrefix,
            SpriteHeightPixels = 72,
            SpriteWidthPixels = 128,
            Interval = new Google.Protobuf.WellKnownTypes.Duration
            {
                Seconds = 7
            }
        };

        ElementaryStream elementaryStream0 = new ElementaryStream
        {
            Key = "video_stream0",
            VideoStream = videoStream0
        };

        ElementaryStream elementaryStream1 = new ElementaryStream
        {
            Key = "audio_stream0",
            AudioStream = audioStream0
        };

        MuxStream muxStream0 = new MuxStream
        {
            Key = "sd",
            Container = "mp4",
            ElementaryStreams = { "video_stream0", "audio_stream0" }
        };

        Input input = new Input
        {
            Key = "input0",
            Uri = inputUri
        };

        Output output = new Output
        {
            Uri = outputUri
        };

        JobConfig jobConfig = new JobConfig
        {
            Inputs = { input },
            Output = output,
            ElementaryStreams = { elementaryStream0, elementaryStream1 },
            MuxStreams = { muxStream0 },
            SpriteSheets = { smallSpriteSheet, largeSpriteSheet }
        };

        // Build the job.
        Job newJob = new Job
        {
            InputUri = inputUri,
            OutputUri = outputUri,
            Config = jobConfig
        };

        // Call the API.
        Job job = client.CreateJob(parent, newJob);

        // Return the result.
        return job;
    }
}

Go

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Go in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Go API.

import (
	"context"
	"fmt"
	"io"

	"github.com/golang/protobuf/ptypes/duration"

	transcoder "cloud.google.com/go/video/transcoder/apiv1"
	transcoderpb "google.golang.org/genproto/googleapis/cloud/video/transcoder/v1"
)

// createJobWithPeriodicImagesSpritesheet creates a job from an ad-hoc configuration and generates
// two spritesheets from the input video. Each spritesheet contains images that are captured
// periodically based on a user-defined time interval.
func createJobWithPeriodicImagesSpritesheet(w io.Writer, projectID string, location string, inputURI string, outputURI string) error {
	// projectID := "my-project-id"
	// location := "us-central1"
	// inputURI := "gs://my-bucket/my-video-file"
	// outputURI := "gs://my-bucket/my-output-folder/"
	ctx := context.Background()
	client, err := transcoder.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("NewClient: %v", err)
	}
	defer client.Close()

	req := &transcoderpb.CreateJobRequest{
		Parent: fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		Job: &transcoderpb.Job{
			InputUri:  inputURI,
			OutputUri: outputURI,
			JobConfig: &transcoderpb.Job_Config{
				Config: &transcoderpb.JobConfig{
					ElementaryStreams: []*transcoderpb.ElementaryStream{
						&transcoderpb.ElementaryStream{
							Key: "video_stream0",
							ElementaryStream: &transcoderpb.ElementaryStream_VideoStream{
								VideoStream: &transcoderpb.VideoStream{
									CodecSettings: &transcoderpb.VideoStream_H264{
										H264: &transcoderpb.VideoStream_H264CodecSettings{
											BitrateBps:   550000,
											FrameRate:    60,
											HeightPixels: 360,
											WidthPixels:  640,
										},
									},
								},
							},
						},
						&transcoderpb.ElementaryStream{
							Key: "audio_stream0",
							ElementaryStream: &transcoderpb.ElementaryStream_AudioStream{
								AudioStream: &transcoderpb.AudioStream{
									Codec:      "aac",
									BitrateBps: 64000,
								},
							},
						},
					},
					MuxStreams: []*transcoderpb.MuxStream{
						&transcoderpb.MuxStream{
							Key:               "sd",
							Container:         "mp4",
							ElementaryStreams: []string{"video_stream0", "audio_stream0"},
						},
					},
					SpriteSheets: []*transcoderpb.SpriteSheet{
						&transcoderpb.SpriteSheet{
							FilePrefix:         "small-sprite-sheet",
							SpriteWidthPixels:  64,
							SpriteHeightPixels: 32,
							ExtractionStrategy: &transcoderpb.SpriteSheet_Interval{
								Interval: &duration.Duration{
									Seconds: 7,
								},
							},
						},
						&transcoderpb.SpriteSheet{
							FilePrefix:         "large-sprite-sheet",
							SpriteWidthPixels:  128,
							SpriteHeightPixels: 72,
							ExtractionStrategy: &transcoderpb.SpriteSheet_Interval{
								Interval: &duration.Duration{
									Seconds: 7,
								},
							},
						},
					},
				},
			},
		},
	}
	// Creates the job. Jobs take a variable amount of time to run. You can query for the job state.
	// See https://cloud.google.com/transcoder/docs/how-to/jobs#check_job_status for more info.
	response, err := client.CreateJob(ctx, req)
	if err != nil {
		return fmt.Errorf("createJobWithPeriodicImagesSpritesheet: %v", err)
	}

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

Java

Richten Sie für dieses Beispiel Java wie in der Kurzanleitung zur Verwendung der Clientbibliotheken mit der Transcoder API beschrieben ein. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Java API.


import com.google.cloud.video.transcoder.v1.AudioStream;
import com.google.cloud.video.transcoder.v1.CreateJobRequest;
import com.google.cloud.video.transcoder.v1.ElementaryStream;
import com.google.cloud.video.transcoder.v1.Input;
import com.google.cloud.video.transcoder.v1.Job;
import com.google.cloud.video.transcoder.v1.JobConfig;
import com.google.cloud.video.transcoder.v1.LocationName;
import com.google.cloud.video.transcoder.v1.MuxStream;
import com.google.cloud.video.transcoder.v1.Output;
import com.google.cloud.video.transcoder.v1.SpriteSheet;
import com.google.cloud.video.transcoder.v1.TranscoderServiceClient;
import com.google.cloud.video.transcoder.v1.VideoStream;
import com.google.protobuf.Duration;
import java.io.IOException;

public class CreateJobWithPeriodicImagesSpritesheet {

  public static final String smallSpritesheetFilePrefix = "small-sprite-sheet";
  public static final String largeSpritesheetFilePrefix = "large-sprite-sheet";
  public static final String spritesheetFileSuffix = "0000000000.jpeg";

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String location = "us-central1";
    String inputUri = "gs://my-bucket/my-video-file";
    String outputUri = "gs://my-bucket/my-output-folder/";

    createJobWithPeriodicImagesSpritesheet(projectId, location, inputUri, outputUri);
  }

  // Creates a job from an ad-hoc configuration and generates two spritesheets from the input video.
  // Each spritesheet contains images that are captured periodically based on a user-defined time
  // interval.
  public static void createJobWithPeriodicImagesSpritesheet(
      String projectId, String location, String inputUri, String outputUri) 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 (TranscoderServiceClient transcoderServiceClient = TranscoderServiceClient.create()) {

      VideoStream videoStream0 =
          VideoStream.newBuilder()
              .setH264(
                  VideoStream.H264CodecSettings.newBuilder()
                      .setBitrateBps(550000)
                      .setFrameRate(60)
                      .setHeightPixels(360)
                      .setWidthPixels(640))
              .build();

      AudioStream audioStream0 =
          AudioStream.newBuilder().setCodec("aac").setBitrateBps(64000).build();

      // Generates a spritesheet of small images taken periodically from the input video. To
      // preserve the source aspect ratio, you should set the spriteWidthPixels field or the
      // spriteHeightPixels field, but not both.
      SpriteSheet smallSpriteSheet =
          SpriteSheet.newBuilder()
              .setFilePrefix(smallSpritesheetFilePrefix)
              .setSpriteHeightPixels(32)
              .setSpriteWidthPixels(64)
              .setInterval(Duration.newBuilder().setSeconds(7).build())
              .build();

      // Generates a spritesheet of larger images taken periodically from the input video. To
      SpriteSheet largeSpriteSheet =
          SpriteSheet.newBuilder()
              .setFilePrefix(largeSpritesheetFilePrefix)
              .setSpriteHeightPixels(72)
              .setSpriteWidthPixels(128)
              .setInterval(Duration.newBuilder().setSeconds(7).build())
              .build();

      JobConfig config =
          JobConfig.newBuilder()
              .addInputs(Input.newBuilder().setKey("input0").setUri(inputUri))
              .setOutput(Output.newBuilder().setUri(outputUri))
              .addElementaryStreams(
                  ElementaryStream.newBuilder()
                      .setKey("video_stream0")
                      .setVideoStream(videoStream0))
              .addElementaryStreams(
                  ElementaryStream.newBuilder()
                      .setKey("audio_stream0")
                      .setAudioStream(audioStream0))
              .addMuxStreams(
                  MuxStream.newBuilder()
                      .setKey("sd")
                      .setContainer("mp4")
                      .addElementaryStreams("video_stream0")
                      .addElementaryStreams("audio_stream0")
                      .build())
              .addSpriteSheets(smallSpriteSheet) // Add the spritesheet config to the job config
              .addSpriteSheets(largeSpriteSheet) // Add the spritesheet config to the job config
              .build();

      var createJobRequest =
          CreateJobRequest.newBuilder()
              .setJob(
                  Job.newBuilder()
                      .setInputUri(inputUri)
                      .setOutputUri(outputUri)
                      .setConfig(config)
                      .build())
              .setParent(LocationName.of(projectId, location).toString())
              .build();

      // Send the job creation request and process the response.
      Job job = transcoderServiceClient.createJob(createJobRequest);
      System.out.println("Job: " + job.getName());
    }
  }
}

Node.js

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Node.js in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Node.js API.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// projectId = 'my-project-id';
// location = 'us-central1';
// inputUri = 'gs://my-bucket/my-video-file';
// outputUri = 'gs://my-bucket/my-output-folder/';

// Imports the Transcoder library
const {TranscoderServiceClient} =
  require('@google-cloud/video-transcoder').v1;

// Instantiates a client
const transcoderServiceClient = new TranscoderServiceClient();

async function createJobWithPeriodicImagesSpritesheet() {
  // Construct request
  const request = {
    parent: transcoderServiceClient.locationPath(projectId, location),
    job: {
      inputUri: inputUri,
      outputUri: outputUri,
      config: {
        elementaryStreams: [
          {
            key: 'video-stream0',
            videoStream: {
              h264: {
                heightPixels: 360,
                widthPixels: 640,
                bitrateBps: 550000,
                frameRate: 60,
              },
            },
          },
          {
            key: 'audio-stream0',
            audioStream: {
              codec: 'aac',
              bitrateBps: 64000,
            },
          },
        ],
        muxStreams: [
          {
            key: 'sd',
            container: 'mp4',
            elementaryStreams: ['video-stream0', 'audio-stream0'],
          },
        ],
        spriteSheets: [
          {
            filePrefix: 'small-sprite-sheet',
            spriteHeightPixels: 32,
            spriteWidthPixels: 64,
            interval: {
              seconds: 7,
            },
          },
          {
            filePrefix: 'large-sprite-sheet',
            spriteHeightPixels: 72,
            spriteWidthPixels: 128,
            interval: {
              seconds: 7,
            },
          },
        ],
      },
    },
  };

  // Run request
  const [response] = await transcoderServiceClient.createJob(request);
  console.log(`Job: ${response.name}`);
}

createJobWithPeriodicImagesSpritesheet();

PHP

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von PHP in der Kurzanleitung zur Verwendung der Clientbibliotheken mit der Transcoder API. Weitere Informationen finden Sie in der PHP API-Referenzdokumentation zur Transcoder API.

use Google\Cloud\Video\Transcoder\V1\AudioStream;
use Google\Cloud\Video\Transcoder\V1\ElementaryStream;
use Google\Cloud\Video\Transcoder\V1\Job;
use Google\Cloud\Video\Transcoder\V1\JobConfig;
use Google\Cloud\Video\Transcoder\V1\MuxStream;
use Google\Cloud\Video\Transcoder\V1\SpriteSheet;
use Google\Cloud\Video\Transcoder\V1\TranscoderServiceClient;
use Google\Cloud\Video\Transcoder\V1\VideoStream;
use Google\Protobuf\Duration;

/**
 * Creates a job that generates two spritesheets from the input video. Each
 * spritesheet contains images that are captured periodically.
 *
 * @param string $projectId The ID of your Google Cloud Platform project.
 * @param string $location The location of the job.
 * @param string $inputUri Uri of the video in the Cloud Storage bucket.
 * @param string $outputUri Uri of the video output folder in the Cloud Storage bucket.
 */
function create_job_with_periodic_images_spritesheet($projectId, $location, $inputUri, $outputUri)
{
    // Instantiate a client.
    $transcoderServiceClient = new TranscoderServiceClient();

    $formattedParent = $transcoderServiceClient->locationName($projectId, $location);
    $jobConfig =
        (new JobConfig())->setElementaryStreams([
            (new ElementaryStream())
                ->setKey('video-stream0')
                ->setVideoStream(
                    (new VideoStream())
                        ->setH264(
                            (new VideoStream\H264CodecSettings())
                                ->setBitrateBps(550000)
                                ->setFrameRate(60)
                                ->setHeightPixels(360)
                                ->setWidthPixels(640)
                        )
                ),
            (new ElementaryStream())
                ->setKey('audio-stream0')
                ->setAudioStream(
                    (new AudioStream())
                        ->setCodec('aac')
                        ->setBitrateBps(64000)
                )
        ])->setMuxStreams([
            (new MuxStream())
                ->setKey('sd')
                ->setContainer('mp4')
                ->setElementaryStreams(['video-stream0', 'audio-stream0'])
        ])->setSpriteSheets([
            (new SpriteSheet())
                ->setFilePrefix('small-sprite-sheet')
                ->setSpriteWidthPixels(64)
                ->setSpriteHeightPixels(32)
                ->setInterval(
                    (new Duration())
                        ->setSeconds(7)
                ),
            (new SpriteSheet())
                ->setFilePrefix('large-sprite-sheet')
                ->setSpriteWidthPixels(128)
                ->setSpriteHeightPixels(72)
                ->setInterval(new Duration(['seconds' => 7]))
        ]);

    $job = (new Job())
        ->setInputUri($inputUri)
        ->setOutputUri($outputUri)
        ->setConfig($jobConfig);

    $response = $transcoderServiceClient->createJob($formattedParent, $job);

    // Print job name.
    printf('Job: %s' . PHP_EOL, $response->getName());
}

Python

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Python in der Transcoder API-Kurzanleitung mit Clientbibliotheken. Weitere Informationen finden Sie in der Referenzdokumentation zur Transcoder API Python API.


import argparse

from google.cloud.video import transcoder_v1
from google.cloud.video.transcoder_v1.services.transcoder_service import (
    TranscoderServiceClient,
)
from google.protobuf import duration_pb2 as duration

def create_job_with_periodic_images_spritesheet(
    project_id, location, input_uri, output_uri
):
    """Creates a job based on an ad-hoc job configuration that generates two spritesheets.

    Args:
        project_id: The GCP project ID.
        location: The location to start the job in.
        input_uri: Uri of the video in the Cloud Storage bucket.
        output_uri: Uri of the video output folder in the Cloud Storage bucket."""

    client = TranscoderServiceClient()

    parent = f"projects/{project_id}/locations/{location}"
    job = transcoder_v1.types.Job()
    job.input_uri = input_uri
    job.output_uri = output_uri
    job.config = transcoder_v1.types.JobConfig(
        # Create an ad-hoc job. For more information, see https://cloud.google.com/transcoder/docs/how-to/jobs#create_jobs_ad_hoc.
        # See all options for the job config at https://cloud.google.com/transcoder/docs/reference/rest/v1beta1/JobConfig.
        elementary_streams=[
            # This section defines the output video stream.
            transcoder_v1.types.ElementaryStream(
                key="video-stream0",
                video_stream=transcoder_v1.types.VideoStream(
                    h264=transcoder_v1.types.VideoStream.H264CodecSettings(
                        height_pixels=360,
                        width_pixels=640,
                        bitrate_bps=550000,
                        frame_rate=60,
                    ),
                ),
            ),
            # This section defines the output audio stream.
            transcoder_v1.types.ElementaryStream(
                key="audio-stream0",
                audio_stream=transcoder_v1.types.AudioStream(
                    codec="aac", bitrate_bps=64000
                ),
            ),
        ],
        # This section multiplexes the output audio and video together into a container.
        mux_streams=[
            transcoder_v1.types.MuxStream(
                key="sd",
                container="mp4",
                elementary_streams=["video-stream0", "audio-stream0"],
            ),
        ],
        # Generate two sprite sheets from the input video into the GCS bucket. For more information, see
        # https://cloud.google.com/transcoder/docs/how-to/generate-spritesheet#generate_image_periodically.
        sprite_sheets=[
            # Generate a sprite sheet with 64x32px images. An image is taken every 7 seconds from the video.
            transcoder_v1.types.SpriteSheet(
                file_prefix="small-sprite-sheet",
                sprite_width_pixels=64,
                sprite_height_pixels=32,
                interval=duration.Duration(
                    seconds=7,
                ),
            ),
            # Generate a sprite sheet with 128x72px images. An image is taken every 7 seconds from the video.
            transcoder_v1.types.SpriteSheet(
                file_prefix="large-sprite-sheet",
                sprite_width_pixels=128,
                sprite_height_pixels=72,
                interval=duration.Duration(
                    seconds=7,
                ),
            ),
        ],
    )
    response = client.create_job(parent=parent, job=job)
    print(f"Job: {response.name}")
    return response

Ruby

Bevor Sie dieses Beispiel anwenden, folgen Sie den Schritten zur Einrichtung von Ruby in der Transcoder API-Kurzanleitung unter Verwendung von Clientbibliotheken. Weitere Informationen finden Sie in der Ruby API-Referenzdokumentation zur Transcoder API.

# project_id  = "YOUR-GOOGLE-CLOUD-PROJECT"  # (e.g. "my-project")
# location    = "YOUR-JOB-LOCATION"  # (e.g. "us-central1")
# input_uri   = "YOUR-GCS-INPUT-VIDEO"  # (e.g. "gs://my-bucket/my-video-file")
# output_uri  = "YOUR-GCS-OUTPUT-FOLDER/"  # (e.g. "gs://my-bucket/my-output-folder/")

# Require the Transcoder client library.
require "google/cloud/video/transcoder"

# Create a Transcoder client.
client = Google::Cloud::Video::Transcoder.transcoder_service

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

# Build the job config.
new_job = {
  input_uri: input_uri,
  output_uri: output_uri,
  config: {
    elementary_streams: [
      {
        key: "video-stream0",
        video_stream: {
          h264: {
            height_pixels: 360,
            width_pixels: 640,
            bitrate_bps: 550_000,
            frame_rate: 60
          }
        }
      },
      {
        key: "audio-stream0",
        audio_stream: {
          codec: "aac",
          bitrate_bps: 64_000
        }
      }
    ],
    mux_streams: [
      {
        key: "sd",
        container: "mp4",
        elementary_streams: [
          "video-stream0",
          "audio-stream0"
        ]
      }
    ],
    sprite_sheets: [
      {
        file_prefix: "small-sprite-sheet",
        sprite_width_pixels: 64,
        sprite_height_pixels: 32,
        interval: {
          seconds: 7
        }
      },
      {
        file_prefix: "large-sprite-sheet",
        sprite_width_pixels: 128,
        sprite_height_pixels: 72,
        interval: {
          seconds: 7
        }
      }
    ]
  }
}

job = client.create_job parent: parent, job: new_job

# Print the job name.
puts "Job: #{job.name}"

Verwenden Sie diese Konfiguration für das Beispielvideo, um die folgenden Sprite Sheets zu generieren:

Kleines Bild Sprite Sheet
Abbildung 3: Kleines Bild Sprite Sheet (1 Thumbnail alle 7 Sekunden)

Großes Bild Sprite Sheet
Abbildung 4: Großes Bild Sprite Sheet (1 Thumbnail alle 7 Sekunden)

Acht Miniaturansichten werden aus dem Beispielvideo erzeugt, das 60 Sekunden lang ist.