aws:start [Grimoire]

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====== aws fun ======

===== aws transcribe =====

(from #gcu 28/8/2020)

Le service AWS Transcribe permet de realiser la transcription de contenu audio, c'est à dire l'extraction de texte à partir d'une source audio. Ce service utilise du deep learning.

==== Mise en oeuvre ====

Afin d'utiliser ce service en ligne de commande, il est nécessaire de disposer d'un compte AWS de type "Programmatic", c'est à dire de disposer d'une ''aws_access_key'' et d'une ''aws_secret_access_key''.

Il est nécessaire de disposer d'un droit d'accès AWS S3 Full Access pour uploader les vidéos sur le bucket S3 et d'un AWS Transcribe FullAccess pour lancer des taches de transcription.

Il faut disposer d'un accès à un bucket s3 qui servira d'espace de stockage pour les documents à transcrire.

Le traitement se réalise en trois étapes.


==== Configuration d'un profil pour l'accès à l'API via awscli ====

<code bash>
aws configure --profile s3wtfake
</code>

==== Téléchargement de la vidéo à transcrire vers un bucket S3 ====

<code bash>
aws --profile s3wtfake s3 cp _YPTuniqid_5f4297c4aa6946.62176812_SD.mp4 s3://wtfake-transcribe/
</code>

==== Lancement d'une tache de transcription ====

<code bash>
aws --profile s3wtfake transcribe start-transcription-job --language-code fr-FR --transcription-job-name CDLXX4 --media MediaFileUri=s3://wtfake-transcribe/_YPTuniqid_5f4297c4aa6946.62176812_SD.mp4
</code>

==== Lister les taches de transcription en cours ====

<code bash>
aws --profile s3wtfake transcribe list-transcription-jobs
</code>

Le retour de la commande sera sous cette forme :

<code json>
{
    "TranscriptionJobSummaries": [
        {
            "TranscriptionJobName": "CDL49",
            "CreationTime": 1598560456.056,
            "StartTime": 1598560456.076,
            "LanguageCode": "fr-FR",
            "TranscriptionJobStatus": "IN_PROGRESS",
            "OutputLocationType": "SERVICE_BUCKET"
        },
        {
            "TranscriptionJobName": "CDLXX1",
            "CreationTime": 1598560519.323,
            "StartTime": 1598560519.342,
            "CompletionTime": 1598561094.367,
            "LanguageCode": "fr-FR",
            "TranscriptionJobStatus": "COMPLETED",
            "OutputLocationType": "SERVICE_BUCKET"
        },
</code>

==== Récupération de l'état de la transcription ====

<code bash>
aws --profile s3wtfake transcribe   get-transcription-job --transcription-job-name CDL49
</code>
<code json>
{
    "TranscriptionJob": {
        "TranscriptionJobName": "CDL49",
        "TranscriptionJobStatus": "COMPLETED",
        "LanguageCode": "fr-FR",
        "MediaSampleRateHertz": 44100,
        "MediaFormat": "mp4",
        "Media": {
            "MediaFileUri": "s3://wtfake-transcribe/_YPTuniqid_5f29b633a4b738.59288279_SD.mp4"
        },
        "Transcript": {
            "TranscriptFileUri": "https://s3.eu-west-3.amazonaws.com/aws-transcribe-eu-west-3-prod/087911240729/CDL49/1ec8eebf-c211-4dca-b33b-43d0186b6df6/asrOutput.json?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAwaCWV1LXdlc3QtMyJHMEUCIFY3hEl6zWCQpGO34vgE1TdXKE0fK0aw9xvMua4KlXx8AiEAjqE5LU%2FPCx4GGKLPnpl2p%2FZK3e4SzgqH0z25EcqeelYqtwMI9f%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgwxNzQwODA2NTMxOTgiDKhDEo%2FjUjukcllmEiqLA22HrD2VeB5QfG4l83WtwVE8OnqHQxT8Euns%2BQHL8PNSE0dOkH8C%2FMxs%2FsAYxQYBvKCV%2BQdKMW4%2FNFIssH86TwQSaUnVhDatEKdFO43LCUirK3wYWDUxfsFvRVyUxsiW8j8e9l9H6UuLbOWmuaP86Ixn%2BiEkTM3LEJi%2BZ%2BMalVo8U0R7LLS8w6ieZJsty4LJBzyJ0tcehC9cvX8CwQhiSi43mpY7iBQNsDYjKhV6o5bWk3fdWtEP1rBKicCBjlr8eoGkBswGtZ1Q3LtWxUCqCxmAA5%2FgAk04KL0ir4qmNfUfrrvMaUiGoi2qmDNtVmO9foDXdaWVggSeb0nmEHYlobA3w%2FAyamUM7pY4XPLFYNHBD6nx9o0dVH0lVpOvGSSjtlCANVWpcVy%2F7RMVjN5K00Ndc0ZVD6IR3vA6WIu5uCMgggZuPKyb8Wm1OWoQCmnWOmq%2FSLDnBrEHBRfm%2FTFoNqwtZAtNkVjjBzRb9QQ872q%2B8oAEy8ES%2BsRqn50Y0C6wFQOqqD4KcfHIsYLzMLuToPoFOusBs%2BQz3enUEe%2FMB%2FuyeGgf1AH%2BriScJWHPE45DEUCztTaTbxoL5DxPUFZcEbZt4mpsVLAv%2F9M1UkxVrfl%2BzczNBkMrZgPFW8rZhn3h4BcUZjn3LDIKbjnIq5yLXSbTm6qdLo3MBL7QBFPqoUzn2HGVSvCnOHx70zSU8Rct2umuklYIDmnZ3vWCcWRkaO34kKwWhgyRPAxCGszG4dZy42w%2BYcyFDaQA52T0snJRLhWNEhI24t26GdzegaJ%2BmNXUUV066igMng7WWSLkHvGyWrBGKUYDIWfDkxAQZYjquLLJzVv2y9C%2FfY7lDx3FTA%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200827T210501Z&X-Amz-SignedHeaders=host&X-Amz-Expires=900&X-Amz-Credential=ASIASRCAD66HPFKJIF5W%2F20200827%2Feu-west-3%2Fs3%2Faws4_request&X-Amz-Signature=d538a8b816e3ebad1e9aca2e60835ed3b1ce695c6a3d7e584a0abef228b58cd0"
        },
        "StartTime": 1598560456.076,
        "CreationTime": 1598560456.056,
        "CompletionTime": 1598561834.293,
        "Settings": {
            "ChannelIdentification": false,
            "ShowAlternatives": false
        }
    }
}
</code>

Récupération du fichier JSON contenant la transcription :

<code bash>
wget 'https://s3.eu-west-3.amazonaws.com/aws-transcribe-eu-west-3-prod/087911240729/CDL49/1ec8eebf-c211-4dca-b33b-43d0186b6df6/asrOutput.json?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAwaCWV1LXdlc3QtMyJHMEUCIFY3hEl6zWCQpGO34vgE1TdXKE0fK0aw9xvMua4KlXx8AiEAjqE5LU%2FPCx4GGKLPnpl2p%2FZK3e4SzgqH0z25EcqeelYqtwMI9f%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgwxNzQwODA2NTMxOTgiDKhDEo%2FjUjukcllmEiqLA22HrD2VeB5QfG4l83WtwVE8OnqHQxT8Euns%2BQHL8PNSE0dOkH8C%2FMxs%2FsAYxQYBvKCV%2BQdKMW4%2FNFIssH86TwQSaUnVhDatEKdFO43LCUirK3wYWDUxfsFvRVyUxsiW8j8e9l9H6UuLbOWmuaP86Ixn%2BiEkTM3LEJi%2BZ%2BMalVo8U0R7LLS8w6ieZJsty4LJBzyJ0tcehC9cvX8CwQhiSi43mpY7iBQNsDYjKhV6o5bWk3fdWtEP1rBKicCBjlr8eoGkBswGtZ1Q3LtWxUCqCxmAA5%2FgAk04KL0ir4qmNfUfrrvMaUiGoi2qmDNtVmO9foDXdaWVggSeb0nmEHYlobA3w%2FAyamUM7pY4XPLFYNHBD6nx9o0dVH0lVpOvGSSjtlCANVWpcVy%2F7RMVjN5K00Ndc0ZVD6IR3vA6WIu5uCMgggZuPKyb8Wm1OWoQCmnWOmq%2FSLDnBrEHBRfm%2FTFoNqwtZAtNkVjjBzRb9QQ872q%2B8oAEy8ES%2BsRqn50Y0C6wFQOqqD4KcfHIsYLzMLuToPoFOusBs%2BQz3enUEe%2FMB%2FuyeGgf1AH%2BriScJWHPE45DEUCztTaTbxoL5DxPUFZcEbZt4mpsVLAv%2F9M1UkxVrfl%2BzczNBkMrZgPFW8rZhn3h4BcUZjn3LDIKbjnIq5yLXSbTm6qdLo3MBL7QBFPqoUzn2HGVSvCnOHx70zSU8Rct2umuklYIDmnZ3vWCcWRkaO34kKwWhgyRPAxCGszG4dZy42w%2BYcyFDaQA52T0snJRLhWNEhI24t26GdzegaJ%2BmNXUUV066igMng7WWSLkHvGyWrBGKUYDIWfDkxAQZYjquLLJzVv2y9C%2FfY7lDx3FTA%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200827T210501Z&X-Amz-SignedHeaders=host&X-Amz-Expires=900&X-Amz-Credential=ASIASRCAD66HPFKJIF5W%2F20200827%2Feu-west-3%2Fs3%2Faws4_request&X-Amz-Signature=d538a8b816e3ebad1e9aca2e60835ed3b1ce695c6a3d7e584a0abef228b58cd0'
</code>

==== Nettoyage ====

Il est nécessaire de liberer l'espace utilisé par les taches afin de ne pas se voir (sur)facturer des ressources non utilisées :

<code bash>
aws --profile s3wtfake transcribe   delete-transcription-job --transcription-job-name CDL49
aws --profile s3wtfake s3 rm s3://wtfake-transcribe/_YPTuniqid_5f29bb94220821.62922269_SD.mp4
</code>