Video Processing Chip Fixed Interface Frequency for Smooth Playback
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Solution Overview
Problem
Existing video processing systems experience temporary black screens and reduced video smoothness due to changes in frame rate or resolution, requiring frequent adjustments in interface frequency between video processing chips and MEMC chips.
Innovation Solution
A method where the video processing chip sends a transport frame stream to the MEMC chip at a fixed interface frequency agreed upon in advance, allowing for adjustments in resolution and frame rate without changing the interface frequency, thereby preventing black screens and improving video smoothness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interface frequency is adjusted when frame rate or resolution changes, then the correspondence between frame rate, resolution, and interface frequency is maintained, but temporary black screens occur and video smoothness is reduced
Solution Approach 1:
The patent pre-establishes multiple correspondence relationships between frame rates, resolutions, and interface frequencies. When frame rate or resolution changes occur, the system can directly select from pre-configured corresponding parameters without requiring real-time adjustment, thus avoiding black screens and maintaining video smoothness.
2Ease of operation
If the interface frequency is kept fixed, then video smoothness is improved and black screens are eliminated, but the correspondence between frame rate, resolution, and interface frequency cannot be dynamically adjusted
Solution Approach 1:
The patent establishes multiple fixed correspondence sets where specific frame rates and resolutions are paired with specific interface frequencies. When adaptation is needed, the system switches between different pre-configured parameter sets rather than dynamically adjusting individual parameters, thus maintaining stability while providing flexibility.
3Adaptability or versatility
If frequent interface frequency adjustments are made to adapt to frame rate or resolution changes, then parameter correspondence is maintained, but video playback smoothness deteriorates
Solution Approach 1:
The system pre-configures multiple valid correspondence relationships between frame rates, resolutions, and interface frequencies. When parameter changes are needed, the system switches between pre-established configurations rather than making frequent adjustments, thereby maintaining parameter correspondence while ensuring video playback smoothness.
Data Source
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AI summary
Embodiments of the present invention disclose a method for processing video frames, a video processing chip, and a Motion Estimation/Motion Compensation MEMC chip. The method for processing video frames includes: obtaining, by a video processing chip, multiple video frames; adjusting, by the video processing chip, each video frame from a first resolution to a second resolution; inserting, by the video processing chip, at least one invalid frame into the multiple video frames according to a second frame rate, so that a frame rate of a transport frame stream that consists of the multiple video frames and the at least one invalid frame is the second frame rate; and sending the transport frame stream to an MEMC chip. The video processing chip and the MEMC chip may perform transmission of a frame stream according to an interface frequency corresponding to a resolution and a frame rate that are agreed upon. When the resolution and the frame rate of the video frames obtained by the video processing chip change, there is no need to adjust the interface frequency between the video processing chip and the MEMC chip. This does not result in a black screen on a display screen and therefore improves smoothness of video playing on the display screen.