Dynamic Priority Packet Classification for Bit Rate Reduction
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Solution Overview
Problem
Existing data processing systems face issues with reproduction faults such as block noise and strange noise when reducing bit rates, as they cannot transmit or store all packets, leading to the discard of essential packets for video and audio reproduction.
Innovation Solution
A data processing device with a classifying unit that prioritizes packets based on their content and a selection unit that preferentially outputs high-priority packets, preventing the discard of essential packets during bit rate reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If filtering is performed to reduce bit rate by selecting only packets from intended services, then transmission band and storage capacity are reduced, but reproduction faults occur when essential packets are discarded
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different packets based on their content type. Essential packets (audio, video, subtitles) are given high priority and preserved, while non-essential packets are given low priority and discarded during bit rate reduction. This selective preservation based on local packet characteristics resolves the contradiction by maintaining reproduction quality for critical content while reducing overall bit rate.
Solution Approach 2:
The patent changes the parameter of packet selection from simple service-based filtering to priority-based selective filtering. By introducing a priority parameter that categorizes packets into high and low priority groups, the system can dynamically adjust which packets are preserved during bit rate reduction, thereby maintaining reproduction quality while achieving bit rate control.
2Quantity of substance
If excess packets are discarded to reduce bit rate, then transmission band and storage capacity are optimized, but reproduction faults such as blocknoise and strange noise occur
Solution Approach 1:
The patent differentiates between essential and non-essential packets by assigning local quality characteristics to each packet type. Audio packets, video packets, and subtitle packets are identified as high priority with critical quality requirements, while other packets are marked as low priority. This local quality differentiation prevents reproduction faults by ensuring that packets affecting visual and auditory quality are preserved during bit rate reduction.
Solution Approach 2:
The patent converts the harmful effect of packet discarding into a beneficial selective filtering process. Instead of randomly or uniformly discarding packets, the system uses priority classification to identify and preserve packets that would cause reproduction faults if discarded. This transforms the potential harm of bit rate reduction into a controlled process that maintains quality for critical content while achieving compression.
3Reliability
If all packets are transmitted without filtering, then reproduction quality is maintained, but transmission band and storage capacity requirements increase
Solution Approach 1:
The patent extracts and removes non-essential packets from the transmission stream while preserving essential packets. By identifying and separating high priority packets (audio, video, subtitles) from low priority packets, the system extracts only the necessary data for reproduction quality, thereby reducing transmission band requirements without compromising the quality of essential content.
Solution Approach 2:
The patent changes the transmission parameter from uniform inclusion of all packets to selective inclusion based on priority classification. By introducing a priority parameter that distinguishes between essential and non-essential packets, the system optimizes transmission band usage by transmitting only the high priority packets that are necessary for maintaining reproduction quality.
Data Source
AI summary
The present disclosure relates to a data processing device, a receiving device, a data processing method, and a program that can suppress the occurrence of reproduction faults caused by a reduction in bit rate.An input packet classifying unit classifies an input packet as a high priority packet or a low priority packet according to priority order based on data included in packets configuring a stream. An output packet selecting unit preferentially selects and outputs a packet of high priority order from among packets that have been classified by the input packet classifying unit and being retained in a high priority packet FIFO or a low priority packet FIFO. The present technology is applied to, for example, a receiving device that can receive a plurality of streams.