Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

GetClip

Downloads an MP4 file (clip) containing the archived, on-demand media from the specified video stream over the specified time range.

Both the StreamName and the StreamARN parameters are optional, but you must specify either the StreamName or the StreamARN when invoking this API operation.

Note

You must first call the GetDataEndpoint API to get an endpoint. Then send the GetClip requests to this endpoint using the --endpoint-url parameter.

An Amazon Kinesis video stream has the following requirements for providing data through MP4:

Video playback track requirements.
Data retention must be greater than 0.
The video track of each fragment must contain codec private data in the Advanced Video Coding (AVC) for H.264 format and HEVC for H.265 format. For more information, see MPEG-4 specification ISO/IEC 14496-15. For information about adapting stream data to a given format, see NAL Adaptation Flags.
The audio track (if present) of each fragment must contain codec private data in the AAC format (AAC specification ISO/IEC 13818-7) or the MS Wave format.

You can monitor the amount of outgoing data by monitoring the GetClip.OutgoingBytes Amazon CloudWatch metric. For information about using CloudWatch to monitor Kinesis Video Streams, see Monitoring Kinesis Video Streams. For pricing information, see Amazon Kinesis Video Streams Pricing and AWS Pricing. Charges for outgoing AWS data apply.

Important

The codec private data (CPD) contained in each fragment contains codec-specific initialization information, such as frame rate, resolution, and encoding profile, which are necessary to properly decode the fragment. CPD changes aren't supported between the target fragments of the resulting clip. The CPD must remain consistent through the queried media, otherwise an error will be returned.

Important

Track changes aren't supported. Tracks must remain consistent throughout the queried media. An error is returned if the fragments in the stream change from having only video to having both audio and video, or if an AAC audio track is changed to an A-Law audio track.

Request Syntax


POST /getClip HTTP/1.1
Content-type: application/json

{
   "ClipFragmentSelector": { 
      "FragmentSelectorType": "string",
      "TimestampRange": { 
         "EndTimestamp": number,
         "StartTimestamp": number
      }
   },
   "StreamARN": "string",
   "StreamName": "string"
}

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.

ClipFragmentSelector

The time range of the requested clip and the source of the timestamps.

Type: ClipFragmentSelector object

Required: Yes

StreamARN

The Amazon Resource Name (ARN) of the stream for which to retrieve the media clip.

You must specify either the StreamName or the StreamARN.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Pattern: arn:[a-z\d-]+:kinesisvideo:[a-z0-9-]+:[0-9]+:[a-z]+/[a-zA-Z0-9_.-]+/[0-9]+

Required: No

StreamName

The name of the stream for which to retrieve the media clip.

You must specify either the StreamName or the StreamARN.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: [a-zA-Z0-9_.-]+

Required: No

Response Syntax


HTTP/1.1 200
Content-Type: ContentType

Payload

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The response returns the following HTTP headers.

ContentType

The content type of the media in the requested clip.

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: ^[a-zA-Z0-9_\.\-]+$

The response returns the following as the HTTP body.

Payload: Traditional MP4 file that contains the media clip from the specified video stream. The output will contain the first 100 MB or the first 200 fragments from the specified start timestamp. For more information, see Kinesis Video Streams quotas.

Errors

For information about the errors that are common to all actions, see Common Errors.

ClientLimitExceededException

Kinesis Video Streams has throttled the request because you have exceeded a limit. Try making the call later. For information about limits, see Kinesis Video Streams quotas.

HTTP Status Code: 400

InvalidArgumentException

A specified parameter exceeds its restrictions, is not supported, or can't be used.

HTTP Status Code: 400

InvalidCodecPrivateDataException

The codec private data in at least one of the tracks of the video stream is not valid for this operation.

HTTP Status Code: 400

InvalidMediaFrameException

One or more frames in the requested clip could not be parsed based on the specified codec.

HTTP Status Code: 400

MissingCodecPrivateDataException

No codec private data was found in at least one of tracks of the video stream.

HTTP Status Code: 400

NoDataRetentionException

GetImages was requested for a stream that does not retain data (that is, has a DataRetentionInHours of 0).

HTTP Status Code: 400

NotAuthorizedException

Status Code: 403, The caller is not authorized to perform an operation on the given stream, or the token has expired.

HTTP Status Code: 401

ResourceNotFoundException

GetImages will throw this error when Kinesis Video Streams can't find the stream that you specified.

GetHLSStreamingSessionURL and GetDASHStreamingSessionURL throw this error if a session with a PlaybackMode of ON_DEMAND or LIVE_REPLAY is requested for a stream that has no fragments within the requested time range, or if a session with a PlaybackMode of LIVE is requested for a stream that has no fragments within the last 30 seconds.

HTTP Status Code: 404

UnsupportedStreamMediaTypeException

The type of the media (for example, h.264 or h.265 video or AAC or G.711 audio) could not be determined from the codec IDs of the tracks in the first fragment for a playback session. The codec ID for track 1 should be V_MPEG/ISO/AVC and, optionally, the codec ID for track 2 should be A_AAC.

HTTP Status Code: 400