Multimedia Decoding Anticipation for Synchronized Playback
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Solution Overview
Problem
Existing multimedia flow reproduction techniques face desynchronization issues and resource inefficiencies, particularly with complex flows, due to the neglect of decoding time and reliance on independent decoding and composition phases, leading to delayed and scrambled displays in multimedia presentations.
Innovation Solution
Anticipating the decoding of multimedia flow entities based on their composition context, allowing for pre-interpretation and early calculation of the structure to be reproduced, ensuring entities are available at the specified composition time stamp, and optimizing resource use through asynchronous decoding and synchronous composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If decoding is performed at the time indicated by composition time stamp, then reproduction timing is maintained, but decoding time delay causes desynchronization and scrambled display
Solution Approach 1:
The patent applies preliminary action by decoding encoded entities before their composition time stamp. The system calculates a decoding deadline based on the composition time stamp and actual decoding duration, then initiates decoding in advance. This ensures that decoding is completed before reproduction is required, eliminating time delay and desynchronization while maintaining proper timing.
2Device complexity
If independent decoding and composition phases are used, then processing simplicity is maintained, but resource inefficiency and decoding delays occur
Solution Approach 1:
The patent applies dynamics by making the decoding process adaptive rather than static. The system dynamically adjusts decoding timing based on actual decoding duration measurements and composition time stamps. This dynamic approach allows the system to optimize resource utilization by initiating decoding at the optimal moment, improving productivity while maintaining manageable processing complexity through automated timing adjustments.
3Speed
If decoding time is neglected, then processing speed is maintained, but reproduction fluidity deteriorates for complex flows
Solution Approach 1:
The patent applies feedback by measuring actual decoding duration and using this information to calculate appropriate decoding deadlines. The system continuously monitors decoding performance and adjusts timing based on real measurements. This feedback mechanism ensures that decoding is completed in time for reproduction, maintaining fluidity for complex flows while preserving processing speed through optimized timing rather than neglecting decoding time.
Data Source
AI summary
The invention relates to a method to reproduce, on at least one client terminal, at least one data flow comprising a plurality of encoded entities, each associated with at least one composition time stamp, said method comprising steps of decoding said flow(s), so as to obtain at least one decoded flow comprising a plurality of decoded entities, and composing of said decoded entities, at the times defined by said composition time stamps. According to the invention, for at least one of said encoded entities, said decoding step is anticipated with respect to said composition time stamp, if a composition context associated with said encoded entity is identical to a current composition context.