Multimedia Frame Buffer Reordering for Encoding Delay Reduction
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Solution Overview
Problem
During multimedia data encoding, the order of encoding multimedia frames differs from the order of capturing them, particularly for B-frames and P-frames, leading to delays as temporally succeeding frames become unavailable during encoding, disrupting the encoding process.
Innovation Solution
A method and system that reorder multimedia frames to the encoding order by configuring buffer information, identifying temporal levels, and storing this information in storage buffers based on dependency, allowing for the retrieval and use of encoded frames as reference buffers for continuous encoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multimedia frames are encoded in capture order, then the encoding process is simple, but reference frames become unavailable causing encoding delays
Solution Approach 1:
The patent applies preliminary action by pre-fetching and storing temporally succeeding frames in buffer memory before they are needed for B-frame encoding. This allows the encoder to access reference frames immediately when required, eliminating waiting delays while maintaining encoding simplicity through organized buffer management.
Solution Approach 2:
The patent introduces buffer memory as an intermediary between the capture device and encoder. This mediator stores frames in capture order while providing them to the encoder in the required display order, resolving the conflict between simple capture-order processing and the need for timely reference frame availability.
2Reliability
If temporally succeeding frames are made available before encoding, then reference frames are available for B-frames, but buffer management complexity increases
Solution Approach 1:
The patent segments the buffer management into distinct components: a capture buffer that receives frames in capture order, and an encode buffer that provides frames in display order. Each buffer is managed independently with specific protocols, reducing overall complexity while ensuring reference frame availability for reliable B-frame encoding.
Solution Approach 2:
The patent implements dynamic buffer management where buffer pointers and indices are updated based on the current encoding state and temporal levels. This dynamic approach allows the system to adaptively manage buffer contents, ensuring reference frames are always available while maintaining efficient buffer utilization without excessive complexity.
3Productivity
If frames are reordered to encoding order, then continuous encoding is enabled, but processing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-ordering frames in buffers according to display order before encoding begins. This preliminary organization enables continuous encoding operations without interruptions for reordering, maintaining high productivity while keeping processing complexity manageable through upfront frame sequencing.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining a steady stream of ready-to-encode frames in the buffer. The buffer management system continuously refills and reorders frames, allowing the encoder to operate continuously without idle periods, thereby maximizing productivity while the buffering mechanism handles the complexity of frame reordering.
Data Source
AI summary
Several methods and systems for facilitating multimedia data encoding are disclosed. In an embodiment, a plurality of picture buffers associated with multimedia data are received in an order of capture associated with the plurality of picture buffers. Buffer information is configured for each picture buffer from among the plurality of picture buffers comprising at least one of a metadata associated with the corresponding picture buffer and one or more encoding parameters for the corresponding picture buffer. A provision of picture buffers in an order of encoding is facilitated based on the configured buffer information.