Video quality-driven buffer dimensioning in MPSoC platforms via prioritized frame drops

Abstract

Abstract-We study the impact of a novel prioritized frame dropping scheme in buffer-constrained multiprocessor systemon-chip (MPSoC) platforms. Accurate buffer dimensioning has attracted lot of research interest as large on-chip buffers result in increased silicon area and higher costs. Multimedia applications present the flexibility of trading off quality for buffer space without any noticeable deterioration in video quality. The frame dropping scheme is crucial here to drop frames appropriately such that the required buffer size is reduced and target quality requirement is satisfied. Towards this, we propose a simple prioritized frame dropping mechanism which reduces the required buffer space more than existing frame dropping policies. We also provide a fast iterative procedure to find the minimum buffer size for a video clip with O(log(N drop )) number of iterations, where N drop is the maximum number of frames that can be dropped for a video clip so that a prespecified quality in terms of peak signal to noise ratio (PSNR) value is satisfied.

Enhancing Scalability in On-Demand Video Streaming Services for P2P Systems

“…The data size for the three frames is known to be I > P > B. Also, dropping "B" frames sparsely does not affect much of the user's perception of the video [32][33][34]. But dropping multiple layers of frames, without keeping in mind the frame priorities with respect to its Group of Picture's (GOP) can affect the received video quality at the client to a great extent.…”