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The emergence of large-scale chip multicore processors makes the on-chip parallel H.264/AVC encoder with high parallelism feasible. To reduce the data reload frequency, a hierarchical chip multi-core DSP platform with overall 64 DSP cores is designed to accommodate the computation/data-intensive H.264/AVC encoder. To increase parallelism, macro block level parallelism is exploited in this paper and...
Due to its high-computational complexity and poor parallelism, the context-based adaptive binary arithmetic coder (CABAC) increasingly poses a bottleneck in the large-scale parallel video encoder like H.264 on a manycore platform. Motivated by the organization of the contexts models in CABAC, this letter presents a tri-thread parallel evolution of CABAC. The evolutional coder, which is named P3-CABAC,...
CABAC is the entropy coding method adopted in H.264/AVC main profile. The combination of CABAC and RDO can represent an improvement in bit rate of around 20%. However, the computation complexity of video encoding increases drastically. To improve the coding performance, this paper proposes a transform-domain bit-rate estimation method for CABAC, which estimates the bit-rate of coding blocks based...
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