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Start Segment Detection

rekognition_start_segment_detection R Documentation

Starts asynchronous detection of segment detection in a stored video

Description

Starts asynchronous detection of segment detection in a stored video.

Amazon Rekognition Video can detect segments in a video stored in an Amazon S3 bucket. Use Video to specify the bucket name and the filename of the video. start_segment_detection returns a job identifier (JobId) which you use to get the results of the operation. When segment detection is finished, Amazon Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic that you specify in NotificationChannel.

You can use the Filters (StartSegmentDetectionFilters) input parameter to specify the minimum detection confidence returned in the response. Within Filters, use ShotFilter (StartShotDetectionFilter) to filter detected shots. Use TechnicalCueFilter (StartTechnicalCueDetectionFilter) to filter technical cues.

To get the results of the segment detection operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. if so, call get_segment_detection and pass the job identifier (JobId) from the initial call to start_segment_detection.

For more information, see Detecting video segments in stored video in the Amazon Rekognition Developer Guide.

Usage

rekognition_start_segment_detection(Video, ClientRequestToken,
  NotificationChannel, JobTag, Filters, SegmentTypes)

Arguments

Video

[required]

ClientRequestToken

Idempotent token used to identify the start request. If you use the same token with multiple start_segment_detection requests, the same JobId is returned. Use ClientRequestToken to prevent the same job from being accidently started more than once.

NotificationChannel

The ARN of the Amazon SNS topic to which you want Amazon Rekognition Video to publish the completion status of the segment detection operation. Note that the Amazon SNS topic must have a topic name that begins with AmazonRekognition if you are using the AmazonRekognitionServiceRole permissions policy to access the topic.

JobTag

An identifier you specify that's returned in the completion notification that's published to your Amazon Simple Notification Service topic. For example, you can use JobTag to group related jobs and identify them in the completion notification.

Filters

Filters for technical cue or shot detection.

SegmentTypes

[required] An array of segment types to detect in the video. Valid values are TECHNICAL_CUE and SHOT.

Value

A list with the following syntax: 

list(
  JobId = "string"
)

Request syntax

svc$start_segment_detection(
  Video = list(
    S3Object = list(
      Bucket = "string",
      Name = "string",
      Version = "string"
    )
  ),
  ClientRequestToken = "string",
  NotificationChannel = list(
    SNSTopicArn = "string",
    RoleArn = "string"
  ),
  JobTag = "string",
  Filters = list(
    TechnicalCueFilter = list(
      MinSegmentConfidence = 123.0,
      BlackFrame = list(
        MaxPixelThreshold = 123.0,
        MinCoveragePercentage = 123.0
      )
    ),
    ShotFilter = list(
      MinSegmentConfidence = 123.0
    )
  ),
  SegmentTypes = list(
    "TECHNICAL_CUE"|"SHOT"
  )
)