AWSTemplateFormatVersion: '2010-09-09'
Description: 'CloudFormation template to create AWS Elemental MediaLive Channel.'

Parameters:
    ChannelName:
        Type: String
        Description: MediaLive Channel Name
        Default: 'activity-detection-channel'
    InputName:
        Type: String
        Description: MediaLive Channel Input Name
        Default: 'activity-detection-input'
    InputVideoBucket:
        Type: String
        Description: "S3 Bucket where the input video is located."
        Default: 'activity-detection-data-bucket'
    VideoFileName:
        Type: String
        Description: "Sample Video Filename."
        Default: 'PeopleSkiing.mp4'        
    DestinationBucket:
        Type: String
        Description: S3 Bucket where the livestream video chunks are stored 
        Default: 'activity-detection-livestream-bucket'

Resources:
  LivestreamChannel:
    Type: 'AWS::MediaLive::Channel'
    DependsOn:
      - LivestreamInput
    Properties:
      Name: !Ref ChannelName
      RoleArn: !GetAtt myMediaLiveAccessRole.Arn
      ChannelClass: SINGLE_PIPELINE
      InputSpecification:
        Codec: MPEG2
        Resolution: SD
        MaximumBitrate: MAX_10_MBPS
      InputAttachments:
        - InputId: !Ref LivestreamInput
          InputAttachmentName: livestream-input
          InputSettings:
            SourceEndBehavior: LOOP
      Destinations:
        - Id: DestinationUrl
          Settings:
            - Url: !Sub "s3://${DestinationBucket}/livestream_pipe/channel"
      EncoderSettings:
        AudioDescriptions:
          - AudioTypeControl: FOLLOW_INPUT
            LanguageCodeControl: FOLLOW_INPUT
            Name: audio_kiycp9            
        TimecodeConfig:
          Source: EMBEDDED
        VideoDescriptions:
          - Name: video_3mmxlc
            RespondToAfd: NONE
            Sharpness: 50
            ScalingBehavior: DEFAULT
        OutputGroups:
          - OutputGroupSettings:
              HlsGroupSettings:
                AdMarkers: []
                CaptionLanguageSetting: OMIT
                CaptionLanguageMappings: []
                HlsCdnSettings:
                  HlsBasicPutSettings:
                    NumRetries: 10
                    ConnectionRetryInterval: 30
                    RestartDelay: 10
                    FilecacheDuration: 5
                InputLossAction: EMIT_OUTPUT
                ManifestCompression: NONE
                Destination:
                  DestinationRefId: DestinationUrl
                IvInManifest: INCLUDE
                IvSource: FOLLOWS_SEGMENT_NUMBER
                ClientCache: ENABLED
                TsFileMode: SEGMENTED_FILES
                ManifestDurationFormat: FLOATING_POINT
                SegmentationMode: USE_SEGMENT_DURATION
                RedundantManifest: DISABLED
                OutputSelection: MANIFESTS_AND_SEGMENTS
                StreamInfResolution: INCLUDE
                IFrameOnlyPlaylists: DISABLED
                IndexNSegments: 10
                ProgramDateTime: EXCLUDE
                ProgramDateTimePeriod: 600
                KeepSegments: 21
                SegmentLength: 10
                TimedMetadataId3Frame: PRIV
                TimedMetadataId3Period: 10
                HlsId3SegmentTagging: DISABLED
                CodecSpecification: RFC_4281
                DirectoryStructure: SINGLE_DIRECTORY
                SegmentsPerSubdirectory: 10000
                Mode: LIVE
            Name: TN2224
            Outputs:
              - OutputSettings:
                  HlsOutputSettings:
                    NameModifier: '_1'
                    HlsSettings:
                      StandardHlsSettings:
                        M3u8Settings:
                          AudioFramesPerPes: 4
                          AudioPids: 492-498
                          NielsenId3Behavior: NO_PASSTHROUGH
                          PcrControl: PCR_EVERY_PES_PACKET
                          PmtPid: '480'
                          ProgramNum: 1
                          Scte35Pid: '500'
                          Scte35Behavior: NO_PASSTHROUGH
                          TimedMetadataPid: '502'
                          TimedMetadataBehavior: NO_PASSTHROUGH
                          VideoPid: '481'
                        AudioRenditionSets: program_audio
                    H265PackagingType: HVC1
                OutputName: wenevf
                VideoDescriptionName: video_3mmxlc
                AudioDescriptionNames:
                  - audio_kiycp9
                  
  LivestreamInput:
    Type: 'AWS::MediaLive::Input'
    Properties:
      Name: !Ref InputName
      Type: MP4_FILE
      Sources:
        - Url: !Sub 's3://${InputVideoBucket}/artifacts/amazon-sagemaker-activity-detection/deployment/${VideoFileName}'
        
  myMediaLiveAccessRole:
    Type: 'AWS::IAM::Role'
    Properties:
      RoleName: 'myMediaLiveAccessRole'
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service:
              - "medialive.amazonaws.com"
            Action:
              - 'sts:AssumeRole'
      ManagedPolicyArns:
          - 'arn:aws:iam::aws:policy/AmazonSSMReadOnlyAccess'
      Policies:
        - PolicyName: myMediaLiveCustomPolicy
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action:
                  - 's3:ListBucket'
                  - 's3:PutObject'
                  - 's3:GetObject'
                  - 's3:DeleteObject'
                Resource: '*'
              - Effect: Allow
                Action:
                  - 'mediastore:ListContainers'
                  - 'mediastore:PutObject'
                  - 'mediastore:GetObject'
                  - 'mediastore:DeleteObject'
                  - 'mediastore:DescribeObject'
                Resource: '*'
              - Effect: Allow
                Action:
                  - 'logs:CreateLogGroup'
                  - 'logs:CreateLogStream'
                  - 'logs:PutLogEvents'
                  - 'logs:DescribeLogStreams'
                  - 'logs:DescribeLogGroups'
                Resource: 'arn:aws:logs:*:*:*'
              - Effect: Allow
                Action:
                  - 'mediaconnect:ManagedDescribeFlow'
                  - 'mediaconnect:ManagedAddOutput'
                  - 'mediaconnect:ManagedRemoveOutput'
                Resource: '*'
              - Effect: Allow
                Action:
                  - 'ec2:describeSubnets'
                  - 'ec2:describeNetworkInterfaces'
                  - 'ec2:createNetworkInterface'
                  - 'ec2:createNetworkInterfacePermission'
                  - 'ec2:deleteNetworkInterface'
                  - 'ec2:deleteNetworkInterfacePermission'
                  - 'ec2:describeSecurityGroups'
                Resource: '*'
              - Effect: Allow
                Action:
                  - 'mediapackage:DescribeChannel'
                Resource: '*'