Stream/Encode videos using Azure Media Services and Node Js

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I have an application that uses AWS Elastic Transcoder to encode videos uploaded to S3 buckets into HLS streaming formats using Lambda functions :

var AWS = require('aws-sdk');
var eltr = new AWS.ElasticTranscoder({ apiVersion: '2012–09–25', region: 'ap-south-1' });

exports.handler = function (event, context) {
    var key = event.Records[0].s3.object.key;
    let srcKey = decodeURIComponent(key.replace(/\+/g, " ")); //the object may have spaces  
    let newKey = key.split('.')[0].replace('protected-video-input/', '')

    eltr.createJob({
        PipelineId: pipelineId,
        OutputKeyPrefix: 'protected-video-output/' + newKey + '/',
        Input: {
            Key: srcKey,
            FrameRate: 'auto',
            Resolution: 'auto',
            AspectRatio: 'auto',
            Interlaced: 'auto',
            Container: 'auto'
        },
        Outputs: [
            {
                Key: newKey + '_64k_audio',
                PresetId: '1351620000001-200071',
                SegmentDuration: "10"
            },
            {
                Key: newKey + '_360',
                PresetId: '1593703351160-e26c00',
                SegmentDuration: "10"
            },
            {
                Key: newKey + '_480',
                PresetId: '1593703253941-idqn5g',
                SegmentDuration: "10"
            },
            {
                Key: newKey + '_720',
                PresetId: '1593702727032-5klbqi',
                SegmentDuration: "10"
            },
            {
                Key: newKey + '_1080',
                PresetId: '1593702631383-73kckt',
                SegmentDuration: "10"
            },
            {
                Key: newKey + '.mp4',
                PresetId: '1351620000001-000020'
            },
        ],
        Playlists: [
            {
                Format: 'HLSv3',
                Name: newKey,
                OutputKeys: [
                    newKey + '_64k_audio',
                    newKey + '_360',
                    newKey + '_480',
                    newKey + '_720',
                    newKey + '_1080'
                ]
            }
        ]
    });
};
  • This lambda function converts the videos uploaded to the S3 bucket (now replaced with Azure Blob Storage) into streaming formats (HLS / .m3u8) with different video quality levels (380p, 480p, 720p, 1080p).
  • Currently, I am tasked with migrating all resources used in this application from AWS to Azure, and I am a novice with Azure Services.
  • From my research, I have identified Azure Media Services as an alternative to AWS Elastic Media Encoder.

I replaced the S3 bucket with Azure Blob Storage in order to upload my video files.

Please help with ANY of the following :

  1. Any examples of which method/function of Azure Media Services should I use for converting to HLS format in node js?
  2. Should the videos be stored in Blob Storage or Media Services Assets?


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