Frame-Accurate Video Editing via Selective Decompression
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Solution Overview
Problem
Current multimedia applications force users to decompress and recompress entire files for editing, leading to unnecessary processing complexity and quality degradation, especially when trimming at intermediate frames or stitching files together, which can violate bit rate conditions and result in poor streaming quality.
Innovation Solution
The system intelligently determines which content portions to decompress and recompress, allowing frame-accurate editing while preserving bit rate integrity by identifying key frames and delta frames, and adjusting buffer fullness information to maintain constant bit rates during file trimming, stitching, and applying effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the entire file is decompressed and recompressed for editing, then frame-accurate editing is enabled, but processing complexity and overhead increase unnecessarily
Solution Approach 1:
The patent divides the video file into key frames and intermediate frames, allowing the system to process only the necessary segments for editing rather than the entire file. This segmentation enables frame-accurate editing at intermediate frames while avoiding unnecessary decomposition of unrelated portions, thus reducing processing complexity and overhead.
2Ease of operation
If the entire file is decompressed and recompressed, then editing operations can be performed, but quality degradation occurs due to repeated encoding
Solution Approach 1:
The patent extracts only the necessary portions of the video file for editing operations. By identifying and processing only the specific segments that require modification rather than the entire file, the system minimizes the number of encoding operations and preserves content quality while still enabling full editing functionality.
3Adaptability or versatility
If files are stitched together blindly, then file stitching is enabled, but bit rate conditions are violated causing streaming quality degradation
Solution Approach 1:
The patent implements feedback mechanisms that monitor and adjust bit rate conditions during file stitching operations. By continuously checking bit rate parameters and making necessary adjustments, the system maintains constant bit rate conditions even when stitching multiple files together, ensuring reliable streaming quality while preserving stitching versatility.
Data Source
AI summary
Methods and systems enable content authors to achieve frame-accurate editing and, in at least some embodiments, reduce the amount of content that needs to be decompressed in order to operate on the frames. Some embodiments ensure that bit rate integrity is preserved so that bit rate conditions associated with streaming environments are preserved. Various embodiments intelligently determine which content portions should be decompressed, processed, and recompressed and which content portions should not be decompressed.