Video Codec Buffer Management for Wireless Signal Adaptation
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Solution Overview
Problem
Current video encoding systems face challenges in dynamically adjusting encoding settings to accommodate changes in wireless signal integrity and video content complexity, leading to suboptimal video quality and buffering issues during transmission and playback.
Innovation Solution
The integration of a wireless communication and encoder device that assesses signal quality, buffer information, and video content factors to adjust encoding settings, compression settings, buffering decisions, and transmission prioritization in real-time, allowing for intelligent adaptation of video encoding parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If encoding settings are adjusted dynamically based on signal quality and content complexity, then video quality is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic adjustment of encoding parameters (quantization parameter, transformation type, motion estimation complexity) based on real-time assessment of signal quality and video content complexity. The system transitions from static encoding settings to adaptive settings that change according to current transmission conditions and content characteristics, resolving the contradiction by making the system flexible rather than fixed.
Solution Approach 2:
The system incorporates feedback mechanisms where encoding decisions for current frames are influenced by assessment results from previous frames. The encoder continuously monitors signal quality metrics and content complexity measures, then uses this feedback to adjust encoding parameters for subsequent frames, achieving improved video quality through iterative optimization without requiring overly complex centralized control.
2Adaptability or versatility
If real-time assessment and adjustment of encoding parameters is implemented, then adaptability is improved, but processing time increases
Solution Approach 1:
The system performs preliminary assessment of video content complexity and signal quality conditions before final encoding decisions are made. By pre-evaluating frame characteristics and transmission conditions, the system prepares encoding parameter selections in advance, reducing the critical processing time during actual encoding operations while maintaining high adaptability to changing conditions.
Solution Approach 2:
The patent employs parameter changes as a streamlined adaptation mechanism, adjusting key encoding parameters (quantization parameter, transformation type, motion estimation complexity) based on assessed conditions. This approach provides sufficient adaptability to wireless conditions and content variations without implementing overly complex real-time optimization algorithms, thus balancing adaptability with processing efficiency.
3Manufacturing precision
If compression settings are optimized for quality, then video quality is improved, but data transmission volume increases
Solution Approach 1:
The system applies local quality optimization by adjusting encoding parameters differently for different video frames or frame portions based on their specific content complexity and transmission conditions. Rather than applying uniform high-quality encoding to all data, the system selectively enhances quality where needed while using more aggressive compression where content is simpler or conditions demand lower bandwidth, thus improving overall video quality without proportionally increasing total data volume.
Data Source
AI summary
Techniques are provided herein for processing video data. The techniques include identifying one or more input factors including one or more of signal quality factors, video content complexity factors, and hardware buffering factors for one or more of a video encoding system and a video playback system; evaluating the one or more input factors to determine adjustments to apply to one or both of the video encoding system and the video playback system; and applying the determine adjustments to the one or both of the video encoding system and the video playback system.