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# Buat AWS Elemental MediaConvert pekerjaan dengan Step Functions
Pelajari cara menggunakan Step Functions untuk membuat AWS Elemental MediaConvert job menggunakan [https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobspost](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobspost)API.
**Eksperimen dengan Step Functions dan MediaConvert**
Pelajari cara menggunakan integrasi yang MediaConvert dioptimalkan dalam alur kerja yang mendeteksi dan menghapus bilah warna SMTPE dengan panjang yang tidak diketahui dari awal klip video. Baca posting blog dari 12 April 2024: Alur [https://aws.amazon.com/blogs/media/low-code-workflows-with-aws-elemental-mediaconvert/](https://aws.amazon.com/blogs/media/low-code-workflows-with-aws-elemental-mediaconvert/) dengan AWS Elemental MediaConvert
Untuk mempelajari tentang mengintegrasikan dengan AWS layanan di Step Functions, lihat [Integrasi layanan ](integrate-services.md) dan[Meneruskan parameter ke API layanan di Step Functions](connect-parameters.md).
**Fitur utama dari MediaConvert integrasi yang dioptimalkan**
Pola [Jalankan Tugas (.sync)](connect-to-resource.md#connect-sync) dan [Minta Tanggapan](connect-to-resource.md#connect-default) integrasi didukung.
Step Functions akan menambahkan tag kustom berikut ke MediaConvert pekerjaan: `ManagedByService: AWSStepFunctions`
Tidak ada optimasi khusus untuk pola [Tunggu Callback dengan Task Token](connect-to-resource.md#connect-wait-token) integrasi.
Berikut ini mencakup `Task` keadaan yang mengirimkan MediaConvert pekerjaan dan menunggu sampai selesai.
```
{
"StartAt": "MediaConvert_CreateJob",
"States": {
"MediaConvert_CreateJob": {
"Type": "Task",
"Resource": "arn:aws:states:::mediaconvert:createJob.sync",
"Arguments": {
"Role": "arn:aws:iam::111122223333:role/Admin",
"Settings": {
"OutputGroups": [
{
"Outputs": [
{
"ContainerSettings": {
"Container": "MP4"
},
"VideoDescription": {
"CodecSettings": {
"Codec": "H_264",
"H264Settings": {
"MaxBitrate": 1000,
"RateControlMode": "QVBR",
"SceneChangeDetect": "TRANSITION_DETECTION"
}
}
},
"AudioDescriptions": [
{
"CodecSettings": {
"Codec": "AAC",
"AacSettings": {
"Bitrate": 96000,
"CodingMode": "CODING_MODE_2_0",
"SampleRate": 48000
}
}
}
]
}
],
"OutputGroupSettings": {
"Type": "FILE_GROUP_SETTINGS",
"FileGroupSettings": {
"Destination": "s3://amzn-s3-demo-destination-bucket/"
}
}
}
],
"Inputs": [
{
"AudioSelectors": {
"Audio Selector 1": {
"DefaultSelection": "DEFAULT"
}
},
"FileInput": "s3://amzn-s3-demo-bucket/DOC-EXAMPLE-SOURCE_FILE"
}
]
}
},
"End": true
}
}
}
```
**Parameter Step Functions dalam dinyatakan dalam PascalCase**
Bahkan jika API layanan asli ada di camelCase, misalnya `startSyncExecution` tindakan API, Anda menentukan parameter PascalCase, seperti:. `StateMachineArn`
## Dioptimalkan MediaConvert APIs
+ [https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobspost](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobspost)
+ [Permintaan sintaks](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-request-body-post-example)
+ Parameter yang didukung:
+ [https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-prop-createjobrequest-role](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-prop-createjobrequest-role) (Wajib)
+ [https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-prop-createjobrequest-settings](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-prop-createjobrequest-settings) (Wajib)
+ [https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-model-createjobrequest](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-model-createjobrequest) (Opsional)
+ [Sintaks respons](https://docs.aws.amazon.com/mediaconvert/latest/apireference/jobs.html#jobs-response-examples) **- lihat skema CreateJobResponse **
## Kebijakan IAM untuk menelepon AWS Elemental MediaConvert
Contoh templat berikut menunjukkan cara AWS Step Functions menghasilkan kebijakan IAM berdasarkan sumber daya dalam definisi mesin status Anda. Untuk informasi selengkapnya, lihat [Bagaimana Step Functions menghasilkan kebijakan IAM untuk layanan terintegrasi](service-integration-iam-templates.md) dan [Temukan pola integrasi layanan di Step Functions](connect-to-resource.md).
Kebijakan IAM untuk `GetJob` dan `CancelJob` tindakan dicakup untuk hanya mengizinkan akses ke pekerjaan dengan tag. `ManagedByService: AWSStepFunctions`
**Kebijakan berbasis tag**
Memodifikasi `ManagedByService: AWSStepFunctions` tag yang dibuat secara otomatis akan menyebabkan eksekusi mesin status gagal.
------
#### [ Run a Job (.sync) ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Sid": "MediaConvertCreateJob",
"Effect": "Allow",
"Action": [
"mediaconvert:CreateJob"
],
"Resource": [
"arn:aws:mediaconvert:us-east-1:123456789012:queues/*",
"arn:aws:mediaconvert:us-east-1:123456789012:jobTemplates/*",
"arn:aws:mediaconvert:us-east-1:123456789012:presets/*"
]
},
{
"Sid": "MediaConvertManageJob",
"Effect": "Allow",
"Action": [
"mediaconvert:GetJob",
"mediaconvert:CancelJob"
],
"Resource": "arn:aws:mediaconvert:us-east-1:123456789012:jobs/*",
"Condition": {
"StringEquals": {
"aws:ResourceTag/ManagedByService": "AWSStepFunctions"
}
}
},
{
"Sid": "IamPassRole",
"Effect": "Allow",
"Action": [
"iam:PassRole"
],
"Resource": [
"arn:aws:iam::123456789012:role/myRoleName"
],
"Condition": {
"StringEquals": {
"iam:PassedToService": [
"mediaconvert.amazonaws.com"
]
}
}
},
{
"Sid": "EventBridgeManageRule",
"Effect": "Allow",
"Action": [
"events:PutTargets",
"events:PutRule",
"events:DescribeRule"
],
"Resource": [
"arn:aws:events:us-east-1:123456789012:rule/StepFunctionsGetEventsForMediaConvertJobRule"
]
}
]
}
```
------
#### [ Request Response ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Sid": "MediaConvertCreateJob",
"Effect": "Allow",
"Action": [
"mediaconvert:CreateJob"
],
"Resource": [
"arn:aws:mediaconvert:us-east-1:123456789012:queues/*",
"arn:aws:mediaconvert:us-east-1:123456789012:jobTemplates/*",
"arn:aws:mediaconvert:us-east-1:123456789012:presets/*"
]
},
{
"Sid": "IamPassRole",
"Effect": "Allow",
"Action": [
"iam:PassRole"
],
"Resource": [
"arn:aws:iam::123456789012:role/myRoleName"
],
"Condition": {
"StringEquals": {
"iam:PassedToService": [
"mediaconvert.amazonaws.com"
]
}
}
}
]
}
```
------