name : start-composition.rst **Example 1: To start a composition with default layout settings** The following ``start-composition`` example starts a composition for the specified stage to be streamed to the specified locations. :: aws ivs-realtime start-composition \ --stage-arn arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd \ --destinations '[{"channel": {"channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", \ "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"}}, \ {"s3":{"encoderConfigurationArns":["arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"], \ "recordingConfiguration": {"hlsConfiguration": {"targetSegmentDurationSeconds": 5}}, \ "storageConfigurationArn":"arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE"}}]' Output:: { "composition": { "arn": "arn:aws:ivs:ap-northeast-1:123456789012:composition/abcdABCDefgh", "destinations": [ { "configuration": { "channel": { "channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" }, "name": "" }, "id": "AabBCcdDEefF", "state": "STARTING" }, { "configuration": { "name": "", "s3": { "encoderConfigurationArns": [ "arn:aws:ivs:arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" ], "recordingConfiguration": { "format": "HLS", "hlsConfiguration": { "targetSegmentDurationSeconds": 5 } }, "storageConfigurationArn": "arn:arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE" } }, "detail": { "s3": { "recordingPrefix": "aBcDeFgHhGfE/AbCdEfGhHgFe/GHFabcgefABC/composite" } }, "id": "GHFabcgefABC", "state": "STARTING" } ], "layout": { "grid": { "featuredParticipantAttribute": "" "gridGap": 2, "omitStoppedVideo": false, "participantOrderAttribute": "", "videoAspectRatio": "VIDEO", "videoFillMode": "" } }, "stageArn": "arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd", "startTime": "2023-10-16T23:24:00+00:00", "state": "STARTING", "tags": {} } } For more information, see `IVS Composite Recording | Real-Time Streaming <https://docs.aws.amazon.com/ivs/latest/RealTimeUserGuide/rt-composite-recording.html>`__ in the *Amazon Interactive Video Service User Guide*. **Example 2: To start a composition with PiP layout** The following ``start-composition`` example starts a composition for the specified stage to be streamed to the specified locations using PiP layout. :: aws ivs-realtime start-composition \ --stage-arn arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd \ --destinations '[{"channel": {"channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", \ "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"}}, \ {"s3":{"encoderConfigurationArns":["arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"], \ "storageConfigurationArn":"arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE"}}]' \ --layout pip='{featuredParticipantAttribute="abcdefg"}' Output:: { "composition": { "arn": "arn:aws:ivs:ap-northeast-1:123456789012:composition/wxyzWXYZpqrs", "destinations": [ { "configuration": { "channel": { "channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" }, "name": "" }, "id": "AabBCcdDEefF", "state": "STARTING" }, { "configuration": { "name": "", "s3": { "encoderConfigurationArns": [ "arn:aws:ivs:arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" ], "recordingConfiguration": { "format": "HLS", "hlsConfiguration": { "targetSegmentDurationSeconds": 2 } }, "storageConfigurationArn": "arn:arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE" } }, "detail": { "s3": { "recordingPrefix": "aBcDeFgHhGfE/AbCdEfGhHgFe/GHFabcgefABC/composite" } }, "id": "GHFabcgefABC", "state": "STARTING" } ], "layout": { "pip": { "featuredParticipantAttribute": "abcdefg", "gridGap": 0, "omitStoppedVideo": false, "participantOrderAttribute": "", "pipBehavior": "STATIC", "pipOffset": 0, "pipParticipantAttribute": "", "pipPosition": "BOTTOM_RIGHT", "videoFillMode": "COVER" } }, "stageArn": "arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd", "startTime": "2023-10-16T23:24:00+00:00", "state": "STARTING", "tags": {} } } For more information, see `IVS Composite Recording | Real-Time Streaming <https://docs.aws.amazon.com/ivs/latest/RealTimeUserGuide/rt-composite-recording.html>`__ in the *Amazon Interactive Video Service User Guide*. **Example 3: To start a composition with thumbnail recording enabled** The following ``start-composition`` example starts a composition for the specified stage to be streamed to the specified locations with thumbnail recording enabled. :: aws ivs-realtime start-composition \ --stage-arn arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd \ --destinations '[{"channel": {"channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", \ "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"}}, \ {"s3": {"encoderConfigurationArns": ["arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"], \ "storageConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE", \ "thumbnailConfigurations": [{"storage": ["SEQUENTIAL"],"targetIntervalSeconds": 60}]}}]' Output:: { "composition": { "arn": "arn:aws:ivs:ap-northeast-1:123456789012:composition/abcdABCDefgh", "destinations": [ { "configuration": { "channel": { "channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" }, "name": "" }, "id": "AabBCcdDEefF", "state": "STARTING" }, { "configuration": { "name": "", "s3": { "encoderConfigurationArns": [ "arn:aws:ivs:arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" ], "recordingConfiguration": { "format": "HLS", "hlsConfiguration": { "targetSegmentDurationSeconds": 2 } }, "storageConfigurationArn": "arn:arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE", "thumbnailConfigurations": [ { "targetIntervalSeconds": 60, "storage": [ "SEQUENTIAL" ] } ] } }, "detail": { "s3": { "recordingPrefix": "aBcDeFgHhGfE/AbCdEfGhHgFe/GHFabcgefABC/composite" } }, "id": "GHFabcgefABC", "state": "STARTING" } ], "layout": { "grid": { "featuredParticipantAttribute": "" "gridGap": 2, "omitStoppedVideo": false, "participantOrderAttribute": "", "videoAspectRatio": "VIDEO", "videoFillMode": "" } }, "stageArn": "arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd", "startTime": "2023-10-16T23:24:00+00:00", "state": "STARTING", "tags": {} } } For more information, see `Composite Recording (Real-Time Streaming) <https://docs.aws.amazon.com/ivs/latest/RealTimeUserGuide/rt-composite-recording.html>`__ in the *Amazon Interactive Video Service User Guide*. **Example 4: To start a composition using grid layout with custom participant ordering** The following ``start-composition`` example starts a composition for the specified stage to be streamed to the specified locations using grid layout with custom participant ordering. :: aws ivs-realtime start-composition \ --stage-arn arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd \ --destinations '[{"channel": {"channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", \ "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"}}, \ {"s3": {"encoderConfigurationArns": ["arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef"], \ "storageConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE", \ "thumbnailConfigurations": [{"storage": ["SEQUENTIAL"],"targetIntervalSeconds": 60}]}}]' \ --layout grid='{participantOrderAttribute="abcdefg"}' Output:: { "composition": { "arn": "arn:aws:ivs:ap-northeast-1:123456789012:composition/abcdABCDefgh", "destinations": [ { "configuration": { "channel": { "channelArn": "arn:aws:ivs:ap-northeast-1:123456789012:channel/abcABCdefDEg", "encoderConfigurationArn": "arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" }, "name": "" }, "id": "AabBCcdDEefF", "state": "STARTING" }, { "configuration": { "name": "", "s3": { "encoderConfigurationArns": [ "arn:aws:ivs:arn:aws:ivs:ap-northeast-1:123456789012:encoder-configuration/ABabCDcdEFef" ], "recordingConfiguration": { "format": "HLS", "hlsConfiguration": { "targetSegmentDurationSeconds": 2 } }, "storageConfigurationArn": "arn:arn:aws:ivs:ap-northeast-1:123456789012:storage-configuration/FefABabCDcdE", "thumbnailConfigurations": [ { "targetIntervalSeconds": 60, "storage": [ "SEQUENTIAL" ] } ] } }, "detail": { "s3": { "recordingPrefix": "aBcDeFgHhGfE/AbCdEfGhHgFe/GHFabcgefABC/composite" } }, "id": "GHFabcgefABC", "state": "STARTING" } ], "layout": { "grid": { "featuredParticipantAttribute": "" "gridGap": 2, "omitStoppedVideo": false, "participantOrderAttribute": "abcdefg", "videoAspectRatio": "VIDEO", "videoFillMode": "" } }, "stageArn": "arn:aws:ivs:ap-northeast-1:123456789012:stage/defgABCDabcd", "startTime": "2023-10-16T23:24:00+00:00", "state": "STARTING", "tags": {} } } For more information, see `IVS Composite Recording | Real-Time Streaming <https://docs.aws.amazon.com/ivs/latest/RealTimeUserGuide/rt-composite-recording.html>`__ in the *Amazon Interactive Video Service User Guide*.