Video Memory Storage for 8-bit and 10-bit Data
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Solution Overview
Problem
Current memory storage systems face inefficiencies in handling both 8-bit and 10-bit video data representations, particularly in video decoders, which can require significant memory resources and complicate the integration of new standards, such as HEVC, that demand 10-bit reference frames.
Innovation Solution
The system efficiently stores and processes both 8-bit and 10-bit video data representations by using a compact storage format that allows dual representation without full duplicates, utilizing a single memory structure where 8-bit data is stored in one plane and extra bits for 10-bit data are stored adjacent to chrominance components, maintaining efficient memory access and reducing memory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If full duplicate memory storage is used for both 8-bit and 10-bit video data representations, then both representations can be accessed efficiently, but memory usage and system costs increase significantly
Solution Approach 1:
The patent merges 8-bit and 10-bit video data storage by storing the common 8-bit luminance (Y) and chrominance (U, V) components in shared memory planes, while storing only the additional 2-bit difference data separately. This combining approach allows both 8-bit and 10-bit representations to be reconstructed from the same base data plus the extra bits, eliminating the need for full duplicate storage while maintaining efficient access to both formats.
2Adaptability or versatility
If 10-bit reference frame storage is implemented in existing 8-bit video decoder systems, then HEVC and other advanced standards can be supported, but device complexity and integration difficulty increase
Solution Approach 1:
The patent implements a dynamic storage architecture where the same base memory structures (Y plane, UV plane) serve dual purposes for both 8-bit and 10-bit operations. The system dynamically reconstructs the required bit depth by combining the stored 8-bit data with the additional 2-bit difference data only when 10-bit processing is needed. This dynamic approach allows existing 8-bit decoder hardware to support 10-bit standards without requiring complete architectural redesign or additional dedicated 10-bit storage paths.
3Reliability
If separate memory structures are used for 8-bit and 10-bit video data, then data integrity is maintained, but memory bandwidth and processing efficiency decrease
Solution Approach 1:
The patent segments the 10-bit video data into two distinct components: the common 8-bit base data (luminance Y and chrominance U, V) and the additional 2-bit difference data. By segmenting the storage this way, the system maintains data integrity through separate storage of each component while enabling efficient processing by allowing the common 8-bit portions to be shared and accessed once for both 8-bit and 10-bit operations, rather than requiring separate complete copies of the entire video data.
Data Source
AI summary
A video processing system includes a memory to store video data and a decoder to fetch the video data for processing. The decoder can be configured to perform a first fetch to obtain a luminance data and to perform a second fetch to obtain both a chrominance data and an additional portion of the luminance data.