Video Transmission Multiplexing Apparatus Version Conversion
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Solution Overview
Problem
The existing multiplexing apparatuses for the MPEG media transport (MMT) system require all broadcast devices to be updated to the latest MMT standard version, restricting system updates when packets of different MMT standard versions are present.
Innovation Solution
A multiplexing apparatus with a processor that identifies and converts input packets to a reference version, allowing for multiplexing even if packets are of different MMT standard versions, thereby eliminating the need for simultaneous updates of broadcast devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the multiplexing apparatus requires all broadcast devices to be updated to the latest MMT standard version, then the system ensures standardized packet processing, but it restricts system updates and requires simultaneous updates of all broadcast devices
Solution Approach 1:
The multiplexing apparatus acts as an intermediary that receives packets of different MMT standard versions from broadcast devices and converts them into a unified reference version before multiplexing. This mediator function allows broadcast devices to operate at different version levels while maintaining system-wide standardization, eliminating the need for simultaneous updates across all devices.
Solution Approach 2:
The system changes the version parameter of incoming packets dynamically based on their source device's capability. The multiplexing apparatus identifies the version of each incoming packet and transforms it to match the reference version, allowing the system to accommodate multiple version parameters simultaneously while producing standardized output.
2Adaptability or versatility
If the multiplexing apparatus accepts packets of different MMT standard versions, then it enables sequential updates of broadcast devices, but it increases the complexity of version identification and conversion processing
Solution Approach 1:
The multiplexing apparatus performs preliminary version identification on incoming packets before multiplexing operations. By detecting the version of each packet early in the processing pipeline and converting it to the reference version in advance, the system prepares standardized packets for subsequent multiplexing without adding complexity to the core multiplexing logic.
3Stability of the object's composition
If the system requires simultaneous updates of all broadcast devices to the latest MMT standard, then it maintains consistent packet formats, but it increases the time and resource requirements for system updates
Solution Approach 1:
The multiplexing apparatus serves as a mediator that reconciles packets of different versions by converting them to a unified reference version. This allows broadcast devices to be updated at different times and at different paces while the multiplexing apparatus ensures that all outgoing packets maintain consistent format according to the reference version, thereby reducing system update time without sacrificing format consistency.
Data Source
AI summary
According to one embodiment, a multiplexing apparatus includes a processor and a multiplexer. The processor is configured to identify the version of the video transmission standard of each of input packets, and to convert the version of the packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version. The multiplexer is configured to multiplex the input packets, based on the reference version.