Compressed Media Headers for Lower Bandwidth Video Transmission
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Solution Overview
Problem
Existing media files have significant redundancy in systems level information, such as program association tables and video parameter sets, leading to high transmission bandwidth and storage requirements without affecting media quality.
Innovation Solution
Compress systems level information by identifying and removing redundant data across frames, generating a compressed header that includes a subset of essential information, and using a database to reconstruct the media file for playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If systems level information is included in every frame, then media playback reliability is ensured, but transmission bandwidth and storage requirements increase
Solution Approach 1:
The patent merges identical systems level information from multiple frames into a single representative instance. Instead of repeating program association tables, program mapping tables, video parameter sets, and other systems level information in every frame, the patent identifies and retains only one copy of each unique information set, thereby reducing transmission bandwidth while ensuring playback reliability through efficient data sharing across frames.
Solution Approach 2:
The patent discards redundant copies of systems level information that are identical across multiple frames, keeping only the essential unique information. The discarded redundancy is recovered through the patent's data structure that allows reconstruction of complete frame information from the compressed representation, ensuring that playback reliability is maintained without transmitting unnecessary duplicate data.
2Reliability
If systems level information is included in every frame, then media playback reliability is ensured, but storage requirements increase
Solution Approach 1:
The patent merges identical systems level information from multiple frames into a single representative instance. Instead of repeating program association tables, program mapping tables, video parameter sets, and other systems level information in every frame, the patent identifies and retains only one copy of each unique information set, thereby reducing storage requirements while ensuring playback reliability through efficient data sharing across frames.
Solution Approach 2:
The patent discards redundant copies of systems level information that are identical across multiple frames, keeping only the essential unique information. The discarded redundancy is recovered through the patent's data structure that allows reconstruction of complete frame information from the compressed representation, ensuring that playback reliability is maintained without storing unnecessary duplicate data.
3Quantity of substance
If redundant systems level information is removed, then transmission bandwidth is reduced, but data completeness may be compromised
Solution Approach 1:
The patent segments the removal of redundant information by systematically identifying and eliminating only those systems level information elements that are truly redundant across frames. This segmented approach ensures that data completeness is maintained by preserving all unique and necessary information while removing only the repetitive portions, thus reducing transmission bandwidth without compromising the completeness of essential media data.
4Quantity of substance
If redundant systems level information is removed, then storage requirements are reduced, but data completeness may be compromised
Solution Approach 1:
The patent segments the removal of redundant information by systematically identifying and eliminating only those systems level information elements that are truly redundant across frames. This segmented approach ensures that data completeness is maintained by preserving all unique and necessary information while removing only the repetitive portions, thus reducing storage requirements without compromising the completeness of essential media data.
Data Source
AI summary
A media file may comprise a plurality of frames, each frame having a header that stores systems level information associated with the media file. A first portion of a frame that comprises the systems level information and a second portion of the frame that comprises the media content itself may be determined for one or more frames of the media file. A compressed header may be generated that comprises a subset of the systems level information associated with the media content of the frame. The compressed header may be generated by removing or compressing information that is determined to be redundant across the frames. The compressed header, as well as information for reconstructing the first frame based on the compressed header, may be sent to a device instead of the first portion of the frame, thereby reducing transmission bandwidth and storage requirements of the media file.