Digital Container Metadata for Audio Video Post-Processing
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Solution Overview
Problem
Movie theaters lack the ability to determine what post-processing and filters have been applied to digital audio and video files, leading to potential degradation or unplayability when additional processing is applied, resulting in the need for new file copies.
Innovation Solution
A processing server generates metadata that details post-processing and filter information applied to audio and video files, which is stored in a data container, allowing playback devices to determine if further processing is needed and avoid degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If playback devices apply additional post-processing and filters to audio and video files, then the files can be optimized for specific playback environments (e.g., 12 speaker theaters, 3D format), but the files may be degraded or become unplayable if processing has already been applied
Solution Approach 1:
The patent applies preliminary action by embedding metadata that documents what post-processing has already been applied to the digital container before playback. This allows the playback device to check the metadata in advance and avoid applying duplicate processing, thereby preventing degradation while maintaining adaptability to different playback environments through selective application of additional processing only when needed.
2Manufacturing precision
If movie theaters apply post-processing to optimize audio for specific speaker configurations, then the audio quality can be improved for that environment, but the processing may cause degradation if the files have already been processed
Solution Approach 1:
The patent implements feedback by embedding metadata in the digital container that provides information about what post-processing has already been applied. The playback device reads this metadata and uses it to determine whether additional processing should be applied, creating a feedback loop that prevents harmful duplicate processing while allowing beneficial optimization when appropriate.
Data Source
AI summary
A processing server that builds metadata is disclosed. The server comprises a processor, a memory, and an application stored in the memory. The application when executed by the processor formats data into a data container, wherein the data comprises audio and video files of a movie. The application then builds metadata, wherein the metadata details what post-processing has been done on the data, wherein the metadata identifies what processing and algorithms are applied to the data and supports selection of data by a playback device. The application then writes metadata into the data container, wherein the playback device applies additional post-processing to the data in the data container based on the metadata.