Creare un job di transcodifica con un overlay. L'overlay è costituito da un'immagine JPEG statica sovrapposta al video di output.
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Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:
Esempio di codice
C#
Prima di provare questo esempio, segui le istruzioni per la configurazione di C# nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API C#.
using Google.Api.Gax.ResourceNames;
using Google.Cloud.Video.Transcoder.V1;
using Google.Protobuf.WellKnownTypes;
using System;
public class CreateJobWithStaticOverlaySample
{
public Job CreateJobWithStaticOverlay(
string projectId, string location, string inputUri, string overlayImageUri, 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
};
// Create the overlay image. Only JPEG is supported. Image resolution is based on output
// video resolution. To respect the original image aspect ratio, set either x or y to 0.0.
// This example stretches the overlay image the full width and half of the height of the
// output video.
Overlay.Types.Image overlayImage = new Overlay.Types.Image
{
Uri = overlayImageUri,
Alpha = 1,
Resolution = new Overlay.Types.NormalizedCoordinate
{
X = 1,
Y = 0.5
}
};
// Create the starting animation (when the overlay appears). Use the values x: 0 and y: 0 to
// position the top-left corner of the overlay in the top-left corner of the output video.
Overlay.Types.Animation animationStart = new Overlay.Types.Animation
{
AnimationStatic = new Overlay.Types.AnimationStatic
{
Xy = new Overlay.Types.NormalizedCoordinate
{
X = 0,
Y = 0
},
StartTimeOffset = Duration.FromTimeSpan(TimeSpan.FromSeconds(0))
}
};
// Create the ending animation (when the overlay disappears). In this example, the overlay
// disappears at the 10-second mark in the output video.
Overlay.Types.Animation animationEnd = new Overlay.Types.Animation
{
AnimationEnd = new Overlay.Types.AnimationEnd
{
StartTimeOffset = Duration.FromTimeSpan(TimeSpan.FromSeconds(10))
}
};
// Create the overlay and add the image and animations to it.
Overlay overlay = new Overlay
{
Image = overlayImage,
Animations = { animationStart, animationEnd }
};
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 },
Overlays = { overlay }
};
// 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
Prima di provare questo esempio, segui le istruzioni per la configurazione di Go nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API Go.
import (
"context"
"fmt"
"io"
"github.com/golang/protobuf/ptypes/duration"
transcoder "cloud.google.com/go/video/transcoder/apiv1"
"cloud.google.com/go/video/transcoder/apiv1/transcoderpb"
)
// createJobWithStaticOverlay creates a job based on a given configuration that
// includes a static overlay. See
// https://cloud.google.com/transcoder/docs/how-to/create-overlays#create-static-overlay
// for more information.
func createJobWithStaticOverlay(w io.Writer, projectID string, location string, inputURI string, overlayImageURI string, outputURI string) error {
// projectID := "my-project-id"
// location := "us-central1"
// inputURI := "gs://my-bucket/my-video-file"
// overlayImageURI := "gs://my-bucket/my-overlay-image-file" - Must be a JPEG
// 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{
{
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,
},
},
},
},
},
{
Key: "audio_stream0",
ElementaryStream: &transcoderpb.ElementaryStream_AudioStream{
AudioStream: &transcoderpb.AudioStream{
Codec: "aac",
BitrateBps: 64000,
},
},
},
},
MuxStreams: []*transcoderpb.MuxStream{
{
Key: "sd",
Container: "mp4",
ElementaryStreams: []string{"video_stream0", "audio_stream0"},
},
},
Overlays: []*transcoderpb.Overlay{
{
Image: &transcoderpb.Overlay_Image{
Uri: overlayImageURI,
Resolution: &transcoderpb.Overlay_NormalizedCoordinate{
X: 1,
Y: 0.5,
},
Alpha: 1,
},
Animations: []*transcoderpb.Overlay_Animation{
{
AnimationType: &transcoderpb.Overlay_Animation_AnimationStatic{
AnimationStatic: &transcoderpb.Overlay_AnimationStatic{
Xy: &transcoderpb.Overlay_NormalizedCoordinate{
X: 0,
Y: 0,
},
StartTimeOffset: &duration.Duration{
Seconds: 0,
},
},
},
},
{
AnimationType: &transcoderpb.Overlay_Animation_AnimationEnd{
AnimationEnd: &transcoderpb.Overlay_AnimationEnd{
StartTimeOffset: &duration.Duration{
Seconds: 10,
},
},
},
},
},
},
},
},
},
},
}
// Creates the job. Jobs take a variable amount of time to run.
// You can query for the job state; see getJob() in get_job.go.
response, err := client.CreateJob(ctx, req)
if err != nil {
return fmt.Errorf("createJobWithStaticOverlay: %v", err)
}
fmt.Fprintf(w, "Job: %v", response.GetName())
return nil
}
Java
Prima di provare questo esempio, segui le istruzioni per la configurazione di Java nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API Java.
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.Overlay;
import com.google.cloud.video.transcoder.v1.Overlay.AnimationEnd;
import com.google.cloud.video.transcoder.v1.Overlay.AnimationStatic;
import com.google.cloud.video.transcoder.v1.Overlay.NormalizedCoordinate;
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 CreateJobWithStaticOverlay {
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 overlayImageUri = "gs://my-bucket/my-overlay-image.jpg"; // Must be a JPEG
String outputUri = "gs://my-bucket/my-output-folder/";
createJobWithStaticOverlay(projectId, location, inputUri, overlayImageUri, outputUri);
}
// Creates a job from an ad-hoc configuration and adds a static overlay to it.
public static void createJobWithStaticOverlay(
String projectId, String location, String inputUri, String overlayImageUri, 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();
// Create the overlay image. Only JPEG is supported. Image resolution is based on output
// video resolution. To respect the original image aspect ratio, set either x or y to 0.0.
// This example stretches the overlay image the full width and half of the height of the
// output video.
Overlay.Image overlayImage =
Overlay.Image.newBuilder()
.setUri(overlayImageUri)
.setResolution(NormalizedCoordinate.newBuilder().setX(1).setY(0.5).build())
.setAlpha(1)
.build();
// Create the starting animation (when the overlay appears). Use the values x: 0 and y: 0 to
// position the top-left corner of the overlay in the top-left corner of the output video.
Overlay.Animation animationStart =
Overlay.Animation.newBuilder()
.setAnimationStatic(
AnimationStatic.newBuilder()
.setXy(NormalizedCoordinate.newBuilder().setX(0).setY(0).build())
.setStartTimeOffset(Duration.newBuilder().setSeconds(0).build())
.build())
.build();
// Create the ending animation (when the overlay disappears). In this example, the overlay
// disappears at the 10-second mark in the output video.
Overlay.Animation animationEnd =
Overlay.Animation.newBuilder()
.setAnimationEnd(
AnimationEnd.newBuilder()
.setStartTimeOffset(Duration.newBuilder().setSeconds(10).build())
.build())
.build();
// Create the overlay and add the image and animations to it.
Overlay overlay =
Overlay.newBuilder()
.setImage(overlayImage)
.addAnimations(animationStart)
.addAnimations(animationEnd)
.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())
.addOverlays(overlay) // Add the overlay 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
Prima di provare questo esempio, segui le istruzioni per la configurazione di Node.js nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API Node.js.
/**
* TODO(developer): Uncomment these variables before running the sample.
*/
// projectId = 'my-project-id';
// location = 'us-central1';
// inputUri = 'gs://my-bucket/my-video-file';
// overlayImageUri = 'gs://my-bucket/my-overlay-image-file'; // Must be a JPEG
// 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 createJobFromStaticOverlay() {
// 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'],
},
],
overlays: [
{
image: {
uri: overlayImageUri,
resolution: {
x: 1,
y: 0.5,
},
alpha: 1.0,
},
animations: [
{
animationStatic: {
xy: {
x: 0,
y: 0,
},
startTimeOffset: {
seconds: 0,
},
},
},
{
animationEnd: {
startTimeOffset: {
seconds: 10,
},
},
},
],
},
],
},
},
};
// Run request
const [response] = await transcoderServiceClient.createJob(request);
console.log(`Job: ${response.name}`);
}
createJobFromStaticOverlay();PHP
Prima di provare questo esempio, segui le istruzioni per la configurazione di PHP nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API PHP.
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\Overlay;
use Google\Cloud\Video\Transcoder\V1\TranscoderServiceClient;
use Google\Cloud\Video\Transcoder\V1\VideoStream;
use Google\Protobuf\Duration;
/**
* Creates a job based on a supplied job config that includes a static image overlay.
*
* @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 $overlayImageUri Uri of the JPEG image for the overlay in the Cloud Storage bucket. Must be a JPEG.
* @param string $outputUri Uri of the video output folder in the Cloud Storage bucket.
*/
function create_job_with_static_overlay($projectId, $location, $inputUri, $overlayImageUri, $outputUri)
{
// Instantiate a client.
$transcoderServiceClient = new TranscoderServiceClient();
$formattedParent = $transcoderServiceClient->locationName($projectId, $location);
$jobConfig =
(new JobConfig())->setElementaryStreams([
(new ElementaryStream())
->setKey('video-stream0')
->setVideoStream(
(new VideoStream())
->setH264(
(new VideoStream\H264CodecSettings())
->setBitrateBps(550000)
->setFrameRate(60)
->setHeightPixels(360)
->setWidthPixels(640)
)
),
(new ElementaryStream())
->setKey('audio-stream0')
->setAudioStream(
(new AudioStream())
->setCodec('aac')
->setBitrateBps(64000)
)
])->setMuxStreams([
(new MuxStream())
->setKey('sd')
->setContainer('mp4')
->setElementaryStreams(['video-stream0', 'audio-stream0'])
])->setOverlays([
(new Overlay())
->setImage(
(new Overlay\Image())
->setUri($overlayImageUri)
->setResolution(
(new Overlay\NormalizedCoordinate())
->setX(1)
->setY(0.5)
)
->setAlpha(1)
)
->setAnimations([
(new Overlay\Animation())
->setAnimationStatic(
(new Overlay\AnimationStatic())
->setXy(
(new Overlay\NormalizedCoordinate())
->setY(0)
->setX(0)
)
->setStartTimeOffset(
(new Duration())
->setSeconds(0)
)
),
(new Overlay\Animation())
->setAnimationEnd(
(new Overlay\AnimationEnd())
->setStartTimeOffset(
(new Duration())
->setSeconds(10)
)
)
])
]);
$job = (new Job())
->setInputUri($inputUri)
->setOutputUri($outputUri)
->setConfig($jobConfig);
$response = $transcoderServiceClient->createJob($formattedParent, $job);
// Print job name.
printf('Job: %s' . PHP_EOL, $response->getName());
}Python
Prima di provare questo esempio, segui le istruzioni per la configurazione di Python nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API Python.
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_static_overlay(
project_id, location, input_uri, overlay_image_uri, output_uri
):
"""Creates a job based on an ad-hoc job configuration that includes a static image overlay.
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.
overlay_image_uri: Uri of the JPEG image for the overlay in the Cloud Storage bucket. Must be a JPEG.
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(
elementary_streams=[
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,
),
),
),
transcoder_v1.types.ElementaryStream(
key="audio-stream0",
audio_stream=transcoder_v1.types.AudioStream(
codec="aac", bitrate_bps=64000
),
),
],
mux_streams=[
transcoder_v1.types.MuxStream(
key="sd",
container="mp4",
elementary_streams=["video-stream0", "audio-stream0"],
),
],
overlays=[
transcoder_v1.types.Overlay(
image=transcoder_v1.types.Overlay.Image(
uri=overlay_image_uri,
resolution=transcoder_v1.types.Overlay.NormalizedCoordinate(
x=1,
y=0.5,
),
alpha=1,
),
animations=[
transcoder_v1.types.Overlay.Animation(
animation_static=transcoder_v1.types.Overlay.AnimationStatic(
xy=transcoder_v1.types.Overlay.NormalizedCoordinate(
x=0,
y=0,
),
start_time_offset=duration.Duration(
seconds=0,
),
),
),
transcoder_v1.types.Overlay.Animation(
animation_end=transcoder_v1.types.Overlay.AnimationEnd(
start_time_offset=duration.Duration(
seconds=10,
),
),
),
],
),
],
)
response = client.create_job(parent=parent, job=job)
print(f"Job: {response.name}")
return response
Ruby
Prima di provare questo esempio, segui le istruzioni per la configurazione di Ruby nella guida rapida all'API Transcoder mediante le librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento per l'API Transcoder API Ruby.
# 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")
# overlay_image_uri = "YOUR-GCS-OVERLAY-IMAGE" # (e.g. "gs://my-bucket/overlay.jpg")
# 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"
]
}
],
overlays: [
{
image: {
uri: overlay_image_uri,
resolution: {
x: 1,
y: 0.5
},
alpha: 1
},
animations: [
{
animation_static: {
xy: {
x: 0,
y: 0
},
start_time_offset: {
seconds: 0
}
}
},
{
animation_end: {
start_time_offset: {
seconds: 10
}
}
}
]
}
]
}
}
job = client.create_job parent: parent, job: new_job
# Print the job name.
puts "Job: #{job.name}"Passaggi successivi
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