Object Storage Service：Transkoding Audio

Java

OSS SDK for Java V3.17.4 atau lebih baru diperlukan.

import com.aliyun.oss.ClientBuilderConfiguration;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.auth.CredentialsProviderFactory;
import com.aliyun.oss.common.auth.EnvironmentVariableCredentialsProvider;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.AsyncProcessObjectRequest;
import com.aliyun.oss.model.AsyncProcessObjectResult;
import com.aliyuncs.exceptions.ClientException;

import java.util.Base64;

public class Demo {
    public static void main(String[] args) throws ClientException {
        // Tentukan endpoint wilayah tempat bucket berada.
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Tentukan ID wilayah Alibaba Cloud tempat bucket berada. Contoh: cn-hangzhou.
        String region = "cn-hangzhou";
        // Dapatkan kredensial akses dari variabel lingkungan. Sebelum menjalankan kode sampel, pastikan variabel lingkungan OSS_ACCESS_KEY_ID dan OSS_ACCESS_KEY_SECRET telah dikonfigurasi.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Tentukan nama bucket.
        String bucketName = "examplebucket";
        // Tentukan nama audio keluaran.
        String targetKey = "dest.aac";
        // Tentukan nama audio sumber.
        String sourceKey = "src.mp3";

        // Buat instance OSSClient.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(endpoint)
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(region)
                .build();

        try {
            // Buat variabel gaya bertipe string untuk menyimpan parameter transkoding audio.
            String style = String.format("audio/convert,ss_10000,t_60000,f_aac,ab_96000");
            // Buat instruksi pemrosesan asinkron.
            String bucketEncoded = Base64.getUrlEncoder().withoutPadding().encodeToString(bucketName.getBytes());
            String targetEncoded = Base64.getUrlEncoder().withoutPadding().encodeToString(targetKey.getBytes());
            String process = String.format("%s|sys/saveas,b_%s,o_%s/notify,topic_QXVkaW9Db252ZXJ0", style, bucketEncoded, targetEncoded);
            // Buat objek AsyncProcessObjectRequest.
            AsyncProcessObjectRequest request = new AsyncProcessObjectRequest(bucketName, sourceKey, process);
            // Jalankan tugas pemrosesan asinkron.
            AsyncProcessObjectResult response = ossClient.asyncProcessObject(request);
            System.out.println("EventId: " + response.getEventId());
            System.out.println("RequestId: " + response.getRequestId());
            System.out.println("TaskId: " + response.getTaskId());

        } finally {
            // Matikan instance OSSClient.
            ossClient.shutdown();
        }
    }
}

Python

OSS SDK for Python V2.18.4 atau lebih baru diperlukan.

# -*- coding: utf-8 -*-
import base64
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

def main():
    # Dapatkan kredensial akses dari variabel lingkungan. Sebelum menjalankan kode sampel, pastikan variabel lingkungan telah dikonfigurasi.
    auth = oss2.Auth(EnvironmentVariableCredentialsProvider())
    # Tentukan endpoint wilayah tempat bucket berada. Misalnya, jika bucket berada di wilayah China (Hangzhou), atur endpoint ke https://oss-cn-hangzhou.aliyuncs.com.
    endpoint = 'https://oss-cn-hangzhou.aliyuncs.com'

    # Tentukan nama bucket. Contoh: examplebucket.
    bucket = oss2.Bucket(auth, endpoint, 'examplebucket')

    # Tentukan nama audio sumber.
    source_key = 'src.mp3'

    # Tentukan nama audio keluaran.
    target_key = 'dest.aac'

    # Buat variabel gaya bertipe string untuk menyimpan parameter transkoding audio.
    animation_style = 'audio/convert,ss_10000,t_60000,f_aac,ab_96000'

    # Buat instruksi pemrosesan, di mana nama bucket dan nama objek keluaran dienkripsi Base64.
    bucket_name_encoded = base64.urlsafe_b64encode('examplebucket'.encode()).decode().rstrip('=')
    target_key_encoded = base64.urlsafe_b64encode(target_key.encode()).decode().rstrip('=')
    process = f"{animation_style}|sys/saveas,b_{bucket_name_encoded},o_{target_key_encoded}/notify,topic_QXVkaW9Db252ZXJ0"

    try:
        # Jalankan tugas pemrosesan asinkron.
        result = bucket.async_process_object(source_key, process)
        print(f"EventId: {result.event_id}")
        print(f"RequestId: {result.request_id}")
        print(f"TaskId: {result.task_id}")
    except Exception as e:
        print(f"Error: {e}")


if __name__ == "__main__":
    main()

Go

OSS SDK for Go V3.0.2 atau lebih baru diperlukan.

package main

import (
	"encoding/base64"
	"fmt"
	"log"
	"os"

	"github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
	// Dapatkan kredensial akses sementara dari variabel lingkungan. Sebelum menjalankan kode sampel, pastikan variabel lingkungan OSS_ACCESS_KEY_ID, OSS_ACCESS_KEY_SECRET, dan OSS_SESSION_TOKEN telah dikonfigurasi.
	provider, err := oss.NewEnvironmentVariableCredentialsProvider()
	if err != nil {
		fmt.Println("Error:", err)
		os.Exit(-1)
	}
	// Buat instance OSSClient.
	// Tentukan endpoint wilayah tempat bucket berada. Misalnya, jika bucket berada di wilayah China (Hangzhou), atur endpoint ke https://oss-cn-hangzhou.aliyuncs.com. Tentukan endpoint aktual Anda.
	// Tentukan ID wilayah Alibaba Cloud tempat bucket berada. Contoh: cn-hangzhou.
	client, err := oss.New("https://oss-cn-hangzhou.aliyuncs.com", "", "", oss.SetCredentialsProvider(&provider), oss.AuthVersion(oss.AuthV4), oss.Region("cn-hangzhou"))
	if err != nil {
		fmt.Println("Error:", err)
		os.Exit(-1)
	}
	// Tentukan nama bucket. Contoh: examplebucket.
	bucketName := "examplebucket"

	bucket, err := client.Bucket(bucketName)
	if err != nil {
		fmt.Println("Error:", err)
		os.Exit(-1)
	}

	// Tentukan nama audio sumber.
	sourceKey := "src.mp3"
	// Tentukan nama audio keluaran.
	targetKey := "dest.aac"

	// Buat variabel gaya bertipe string untuk menyimpan parameter transkoding audio.
	animationStyle := "audio/convert,ss_10000,t_60000,f_aac,ab_96000"

	// Buat instruksi pemrosesan, di mana nama bucket dan nama objek keluaran dienkripsi Base64.
	bucketNameEncoded := base64.URLEncoding.EncodeToString([]byte(bucketName))
	targetKeyEncoded := base64.URLEncoding.EncodeToString([]byte(targetKey))
	process := fmt.Sprintf("%s|sys/saveas,b_%v,o_%v/notify,topic_QXVkaW9Db252ZXJ0", animationStyle, bucketNameEncoded, targetKeyEncoded)

	// Jalankan tugas pemrosesan asinkron.
	result, err := bucket.AsyncProcessObject(sourceKey, process)
	if err != nil {
		log.Fatalf("Gagal memproses objek secara asinkron: %s", err)
	}

	fmt.Printf("EventId: %s\n", result.EventId)
	fmt.Printf("RequestId: %s\n", result.RequestId)
	fmt.Printf("TaskId: %s\n", result.TaskId)
}