/
api_op_GetPersonTracking.go
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/
api_op_GetPersonTracking.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 path tracking results of a Amazon Rekognition Video analysis started
// by StartPersonTracking . The person path tracking operation is started by a call
// to StartPersonTracking which returns a job identifier ( JobId ). When the
// operation finishes, Amazon Rekognition Video publishes a completion status to
// the Amazon Simple Notification Service topic registered in the initial call to
// StartPersonTracking . To get the results of the person path tracking operation,
// first check that the status value published to the Amazon SNS topic is SUCCEEDED
// . If so, call GetPersonTracking and pass the job identifier ( JobId ) from the
// initial call to StartPersonTracking . GetPersonTracking returns an array,
// Persons , of tracked persons and the time(s) their paths were tracked in the
// video. GetPersonTracking only returns the default facial attributes ( BoundingBox
// , Confidence , Landmarks , Pose , and Quality ). The other facial attributes
// listed in the Face object of the following response syntax are not returned.
// For more information, see FaceDetail in the Amazon Rekognition Developer Guide.
// By default, the array is sorted by the time(s) a person's path is tracked in the
// video. You can sort by tracked persons by specifying INDEX for the SortBy input
// parameter. Use the MaxResults parameter to limit the number of items 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 GetPersonTracking and
// populate the NextToken request parameter with the token value returned from the
// previous call to GetPersonTracking .
func (c *Client) GetPersonTracking(ctx context.Context, params *GetPersonTrackingInput, optFns ...func(*Options)) (*GetPersonTrackingOutput, error) {
if params == nil {
params = &GetPersonTrackingInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetPersonTracking", params, optFns, c.addOperationGetPersonTrackingMiddlewares)
if err != nil {
return nil, err
}
out := result.(*GetPersonTrackingOutput)
out.ResultMetadata = metadata
return out, nil
}
type GetPersonTrackingInput struct {
// The identifier for a job that tracks persons in a video. You get the JobId from
// a call to StartPersonTracking .
//
// This member is required.
JobId *string
// Maximum number of results to return per paginated call. The largest value you
// can specify is 1000. If you specify a value greater than 1000, a maximum of 1000
// results is returned. The default value is 1000.
MaxResults *int32
// If the previous response was incomplete (because there are more persons to
// retrieve), Amazon Rekognition Video returns a pagination token in the response.
// You can use this pagination token to retrieve the next set of persons.
NextToken *string
// Sort to use for elements in the Persons array. Use TIMESTAMP to sort array
// elements by the time persons are detected. Use INDEX to sort by the tracked
// persons. If you sort by INDEX , the array elements for each person are sorted by
// detection confidence. The default sort is by TIMESTAMP .
SortBy types.PersonTrackingSortBy
noSmithyDocumentSerde
}
type GetPersonTrackingOutput struct {
// Job identifier for the person tracking operation for which you want to obtain
// results. The job identifer is returned by an initial call to
// StartPersonTracking.
JobId *string
// The current status of the person tracking job.
JobStatus types.VideoJobStatus
// A job identifier specified in the call to StartCelebrityRecognition and
// returned in the job completion notification sent to your Amazon Simple
// Notification Service topic.
JobTag *string
// 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 persons.
NextToken *string
// An array of the persons detected in the video and the time(s) their path was
// tracked throughout the video. An array element will exist for each time a
// person's path is tracked.
Persons []types.PersonDetection
// If the job fails, StatusMessage provides a descriptive error message.
StatusMessage *string
// Video file stored in an Amazon S3 bucket. Amazon Rekognition video start
// operations such as StartLabelDetection use Video to specify a video for
// analysis. The supported file formats are .mp4, .mov and .avi.
Video *types.Video
// Information about a video that Amazon Rekognition Video analyzed. Videometadata
// is returned in every page of paginated responses from a Amazon Rekognition Video
// operation.
VideoMetadata *types.VideoMetadata
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationGetPersonTrackingMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetPersonTracking{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetPersonTracking{}, 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, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addOpGetPersonTrackingValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetPersonTracking(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.AddRecursionDetection(stack); 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
}
// GetPersonTrackingAPIClient is a client that implements the GetPersonTracking
// operation.
type GetPersonTrackingAPIClient interface {
GetPersonTracking(context.Context, *GetPersonTrackingInput, ...func(*Options)) (*GetPersonTrackingOutput, error)
}
var _ GetPersonTrackingAPIClient = (*Client)(nil)
// GetPersonTrackingPaginatorOptions is the paginator options for GetPersonTracking
type GetPersonTrackingPaginatorOptions struct {
// Maximum number of results to return per paginated call. The largest value you
// can specify is 1000. If you specify a value greater than 1000, a maximum of 1000
// results is returned. The default value 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
}
// GetPersonTrackingPaginator is a paginator for GetPersonTracking
type GetPersonTrackingPaginator struct {
options GetPersonTrackingPaginatorOptions
client GetPersonTrackingAPIClient
params *GetPersonTrackingInput
nextToken *string
firstPage bool
}
// NewGetPersonTrackingPaginator returns a new GetPersonTrackingPaginator
func NewGetPersonTrackingPaginator(client GetPersonTrackingAPIClient, params *GetPersonTrackingInput, optFns ...func(*GetPersonTrackingPaginatorOptions)) *GetPersonTrackingPaginator {
if params == nil {
params = &GetPersonTrackingInput{}
}
options := GetPersonTrackingPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &GetPersonTrackingPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *GetPersonTrackingPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next GetPersonTracking page.
func (p *GetPersonTrackingPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*GetPersonTrackingOutput, 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.GetPersonTracking(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_opGetPersonTracking(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "rekognition",
OperationName: "GetPersonTracking",
}
}