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Incorrect video chunks are generated for shared screen in Media Capture Pipeline

See original GitHub issue

What happened and what did you expect to happen?

I don’t know here is the right place to report this kind of issue. Please close if not. (Please tell me where is the right place to report if you know…) I’ve tried Media Capture Pipelines following this article. https://aws.amazon.com/blogs/business-productivity/capture-amazon-chime-sdk-meetings-using-media-capture-pipelines/ I’ve noticed sometimes video for recording shared screen is not what I expected.

Some video chunks show previous shared screen’s image (maybe the image of the last frame of previous shared screen?) for several seconds before start to show next shared screen.
Some video chunks which has above problem has long duration (like 13 seconds).
- the article above says All meeting artifacts are delivered to the S3 bucked designated by the builder in up to five second file chunks throughout the meeting.

Have you reviewed our existing documentation?

GitHub issues
FAQs page
README page
Feature-specific guides

Reproduction steps

1 attendee In a meeting.
Start recording with following configuration

{
    "SourceType": "ChimeSdkMeeting",
    "SourceArn": "arn:aws:chime::[ACCOUNT-ID]:meeting:[MEETING-ID]",         
    "SinkType": "S3Bucket",
    "SinkArn": "arn:aws:s3:::[BUCKET-NAME]/[Prefix]",
    "ChimeSdkMeetingConfiguration": {
        "SourceConfiguration": {
            "SelectedVideoStreams": {
                "AttendeeIds": ["[ATTENDEE-ID]"],
                "ExternalUserIds": ["[EXTERNAL-USER-ID]"]
            }
        },
        "ArtifactsConfiguration": {
            "Audio": {
                "MuxType": "AudioWithActiveSpeakerVideo"
            },
            "Video": {
                "State": "Disabled",
                "MuxType": "VideoOnly"
            },
            "Content": {
                "State": "Enabled",
                "MuxType": "ContentOnly"
            }
        }
    }
}