Video Coding With Implicit Frame Output to Save Signaling Bits
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Solution Overview
Problem
Existing video coding technologies require explicit signaling for each output frame, which consumes unnecessary bits and reduces coding efficiency.
Innovation Solution
Implement an implicit video frame output process that determines frame display order without explicit signaling, using a frame order output determiner to generate open bitstream units (OBUs) without a 'show existing frame' syntax element, thereby optimizing coding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explicit signaling is used for each output frame to indicate frame display order, then frame display control is precise and reliable, but coding efficiency deteriorates due to consumption of unnecessary bits
Solution Approach 1:
The patent extracts and removes the redundant 'show existing frame' syntax element from the bitstream. By identifying that frame display order can be determined implicitly from decoding order without explicit signaling, the invention eliminates this unnecessary data element, thereby improving coding efficiency while maintaining reliable frame display control through alternative implicit mechanisms
Solution Approach 2:
The patent enables the decoder to self-determine frame display order using implicit information already present in the decoded bitstream. Instead of requiring external explicit signaling, the system allows the decoding process itself to provide the necessary information for frame output sequencing, making the system self-sufficient and reducing bit consumption
2Reliability
If explicit signaling syntax elements are included in the bitstream for frame output control, then frame display order is precisely controlled, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent removes the explicit frame output control syntax elements from the bitstream structure. By extracting these redundant signaling elements and replacing them with implicit determination mechanisms based on decoding order, the invention reduces decoder processing complexity while maintaining precise frame output control through simplified logic
Solution Approach 2:
Instead of using explicit forward signaling to control frame output, the patent inverts the approach by using implicit backward determination - the frame display order is derived from the decoding order and other implicit information already present in the system, rather than being explicitly prescribed in advance
Data Source
AI summary
The present disclosure relates to methods, apparatus, systems, and non-transitory computer-readable storage media for video coding using an implicit video frame output process. According to some examples, a computer-implemented method includes receiving a video at a content delivery service; encoding, by the content delivery service, the video into an encoded video; generating, by the content delivery service, at least one open bitstream unit from the encoded video according to a video coding format that does not utilize a show existing frame syntax element set to one to indicate a frame in a reference picture buffer of a decoder is to be displayed; and transmitting the at least one open bitstream unit from the content delivery service to the decoder.