IP Video Recording Metafile Completion at Command Boundaries
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Solution Overview
Problem
Existing recording/reproduction apparatuses face insufficiencies in creating metadata when receiving moving image data via IP streaming, as they lack necessary information about the video processing apparatus recording the data.
Innovation Solution
A recording apparatus that includes a communication unit, processor, and memory to record moving image data and create a metafile by starting and ending recording based on received commands, with metadata used to complete the metafile at the end of recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If metadata is created only from received moving image data without additional information from the video processing apparatus, then the recording apparatus can operate independently, but the metadata becomes insufficient and incomplete
Solution Approach 1:
The video processing apparatus transmits information about recording status (recording start/end commands, file paths, metadata) to the recording apparatus in advance or during the recording process, before the recording apparatus needs to create complete metadata. This preliminary transmission of information allows the recording apparatus to generate comprehensive metadata without having to independently determine all recording parameters.
2Loss of information
If the video processing apparatus transmits all recording information to the recording apparatus, then complete metadata can be created, but the communication overhead and system complexity increase
Solution Approach 1:
Only the essential information needed for metadata creation is extracted and transmitted from the video processing apparatus to the recording apparatus. This includes recording status commands (start/end), file path information, and relevant metadata, while omitting redundant or unnecessary data. This selective extraction minimizes communication overhead while ensuring metadata completeness.
3Device complexity
If the recording apparatus independently creates metadata without external information, then the system operates simpler, but the metadata lacks information about the video processing apparatus recording status
Solution Approach 1:
The video processing apparatus provides feedback to the recording apparatus about its recording status through transmitted commands and information. Recording start/end commands, file path information, and metadata are sent back to the recording apparatus, enabling it to create accurate metadata that reflects the actual recording status without requiring complex independent monitoring systems.
Data Source
AI summary
An apparatus records moving image data received from an image capturing apparatus. The apparatus records a moving image file by starting recording of the moving image data from the image capturing apparatus in accordance with reception of a recording start command and ending the recording of the moving image data in accordance with reception of a recording end command; and starts creation of a metafile associated with the moving image data based on information concerning the creation of the metafile, the information being received at time of the reception of the recording start command and completes the metafile using metadata received at time of the reception of the recording end command.