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api_op_GetSegmentDetection.go
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api_op_GetSegmentDetection.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package rekognition
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/aws-sdk-go-v2/service/rekognition/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Gets the segment detection results of a Amazon Rekognition Video analysis
// started by StartSegmentDetection. Segment detection with Amazon Rekognition
// Video is an asynchronous operation. You start segment detection by calling
// StartSegmentDetection which returns a job identifier (JobId). When the segment
// detection operation finishes, Amazon Rekognition publishes a completion status
// to the Amazon Simple Notification Service topic registered in the initial call
// to StartSegmentDetection. 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 GetSegmentDetection and pass the job identifier (JobId)
// from the initial call of StartSegmentDetection. GetSegmentDetection returns
// detected segments in an array (Segments) of SegmentDetection objects. Segments
// is sorted by the segment types specified in the SegmentTypes input parameter of
// StartSegmentDetection. Each element of the array includes the detected segment,
// the precentage confidence in the acuracy of the detected segment, the type of
// the segment, and the frame in which the segment was detected. Use
// SelectedSegmentTypes to find out the type of segment detection requested in the
// call to StartSegmentDetection. Use the MaxResults parameter to limit the number
// of segment detections returned. If there are more results than specified in
// MaxResults, the value of NextToken in the operation response contains a
// pagination token for getting the next set of results. To get the next page of
// results, call GetSegmentDetection and populate the NextToken request parameter
// with the token value returned from the previous call to GetSegmentDetection. For
// more information, see Detecting Video Segments in Stored Video in the Amazon
// Rekognition Developer Guide.
func (c *Client) GetSegmentDetection(ctx context.Context, params *GetSegmentDetectionInput, optFns ...func(*Options)) (*GetSegmentDetectionOutput, error) {
if params == nil {
params = &GetSegmentDetectionInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetSegmentDetection", params, optFns, addOperationGetSegmentDetectionMiddlewares)
if err != nil {
return nil, err
}
out := result.(*GetSegmentDetectionOutput)
out.ResultMetadata = metadata
return out, nil
}
type GetSegmentDetectionInput struct {
// Job identifier for the text detection operation for which you want results
// returned. You get the job identifer from an initial call to
// StartSegmentDetection.
//
// This member is required.
JobId *string
// Maximum number of results to return per paginated call. The largest value you
// can specify is 1000.
MaxResults *int32
// If the response is truncated, Amazon Rekognition Video returns this token that
// you can use in the subsequent request to retrieve the next set of text.
NextToken *string
}
type GetSegmentDetectionOutput struct {
// An array of objects. There can be multiple audio streams. Each AudioMetadata
// object contains metadata for a single audio stream. Audio information in an
// AudioMetadata objects includes the audio codec, the number of audio channels,
// the duration of the audio stream, and the sample rate. Audio metadata is
// returned in each page of information returned by GetSegmentDetection.
AudioMetadata []types.AudioMetadata
// Current status of the segment detection job.
JobStatus types.VideoJobStatus
// If the previous response was incomplete (because there are more labels to
// retrieve), Amazon Rekognition Video returns a pagination token in the response.
// You can use this pagination token to retrieve the next set of text.
NextToken *string
// An array of segments detected in a video. The array is sorted by the segment
// types (TECHNICAL_CUE or SHOT) specified in the SegmentTypes input parameter of
// StartSegmentDetection. Within each segment type the array is sorted by timestamp
// values.
Segments []types.SegmentDetection
// An array containing the segment types requested in the call to
// StartSegmentDetection.
SelectedSegmentTypes []types.SegmentTypeInfo
// If the job fails, StatusMessage provides a descriptive error message.
StatusMessage *string
// Currently, Amazon Rekognition Video returns a single object in the VideoMetadata
// array. The object contains information about the video stream in the input file
// that Amazon Rekognition Video chose to analyze. The VideoMetadata object
// includes the video codec, video format and other information. Video metadata is
// returned in each page of information returned by GetSegmentDetection.
VideoMetadata []types.VideoMetadata
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
}
func addOperationGetSegmentDetectionMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetSegmentDetection{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetSegmentDetection{}, middleware.After)
if err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = addHTTPSignerV4Middleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addOpGetSegmentDetectionValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetSegmentDetection(options.Region), middleware.Before); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
return nil
}
// GetSegmentDetectionAPIClient is a client that implements the GetSegmentDetection
// operation.
type GetSegmentDetectionAPIClient interface {
GetSegmentDetection(context.Context, *GetSegmentDetectionInput, ...func(*Options)) (*GetSegmentDetectionOutput, error)
}
var _ GetSegmentDetectionAPIClient = (*Client)(nil)
// GetSegmentDetectionPaginatorOptions is the paginator options for
// GetSegmentDetection
type GetSegmentDetectionPaginatorOptions struct {
// Maximum number of results to return per paginated call. The largest value you
// can specify is 1000.
Limit int32
// Set to true if pagination should stop if the service returns a pagination token
// that matches the most recent token provided to the service.
StopOnDuplicateToken bool
}
// GetSegmentDetectionPaginator is a paginator for GetSegmentDetection
type GetSegmentDetectionPaginator struct {
options GetSegmentDetectionPaginatorOptions
client GetSegmentDetectionAPIClient
params *GetSegmentDetectionInput
nextToken *string
firstPage bool
}
// NewGetSegmentDetectionPaginator returns a new GetSegmentDetectionPaginator
func NewGetSegmentDetectionPaginator(client GetSegmentDetectionAPIClient, params *GetSegmentDetectionInput, optFns ...func(*GetSegmentDetectionPaginatorOptions)) *GetSegmentDetectionPaginator {
if params == nil {
params = &GetSegmentDetectionInput{}
}
options := GetSegmentDetectionPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &GetSegmentDetectionPaginator{
options: options,
client: client,
params: params,
firstPage: true,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *GetSegmentDetectionPaginator) HasMorePages() bool {
return p.firstPage || p.nextToken != nil
}
// NextPage retrieves the next GetSegmentDetection page.
func (p *GetSegmentDetectionPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*GetSegmentDetectionOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.MaxResults = limit
result, err := p.client.GetSegmentDetection(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextToken
if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opGetSegmentDetection(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "rekognition",
OperationName: "GetSegmentDetection",
}
}