Efficient Software H.264/AVC to HEVC Transcoding on Distributed Multicore Processors

Chen, Yucong; Wen, Ziyu; Wen, Jiangtao; Tang, Minhao; Tao, Pin

doi:10.1109/tcsvt.2014.2380231

Cited by 25 publications

(13 citation statements)

References 16 publications

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“…The algorithm we proposed in the paper is inspired by the multi-stage decoding information utilization in our previous work [9]. In [9], we presented a four-level transcoder framework, namely GOP-level Task Distribution, High-level Parallel Processing, Mid-level H.264/AVC Information Utilization, and Low-level SIMD and Assembly Acceleration, and implemented on a distributed multi-core processors system, achieving 720 p at 30 Hz H.264/AVC to HEVC transcoding in real time.…”

Section: Related Workmentioning

confidence: 99%

“…In [9], we presented a four-level transcoder framework, namely GOP-level Task Distribution, High-level Parallel Processing, Mid-level H.264/AVC Information Utilization, and Low-level SIMD and Assembly Acceleration, and implemented on a distributed multi-core processors system, achieving 720 p at 30 Hz H.264/AVC to HEVC transcoding in real time. The Mid-level H.264/AVC Information Utilization is based on the multi-stage decoding information utilization framework.…”

Section: Related Workmentioning

confidence: 99%

“…We proposed a fast H.264/AVC to HEVC transcoding algorithm based on multi-stage decoding information utilization framework in [9]. In this framework, H.264/AVC decoding information, including partition size, prediction mode, reference pictures and MVs, is grouped into different layers and the utilization process is divided into several stages.…”

Section: The Proposed Algorithmsmentioning

confidence: 99%

“…Thus, we can filter some more possible modes based on the modes used in the next depth. We conduct similar algorithms with the Fast Partition Mode Decision in H.264/AVC to HEVC transcoding described in [9] as follows. Examples for each condition are given in Figure 2 For SDIP modes:…”

Section: Fast Partition Mode Decisionmentioning

confidence: 99%

“…Inspired by the fast H.264/AVC to HEVC transcoding in [8,9], we adopt the multi-stage decoding information utilization framework in [9] and apply in the HEVC to AVS2 transcoding scenario to maximize the usage of the decoding information. Experiments show that our proposed algorithm can achieve up to 17× speed gains over the RD 14.0 AVS2 reference software with an acceptable coding performance loss.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Software HEVC to AVS2 Transcoding

2016

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Abstract:The second generation of Audio and Video coding Standard (AVS) is developed by the IEEE 1857 Working Group under project 1857.4 and was standardized in 2016 by the AVS Working Group of China as the new broadcasting standard AVS2. High Efficient Video Coding (HEVC) is the newest global video coding standard announced in 2013. More and more codings are migrating from H.264/AVC to HEVC because of its higher compression performance. In this paper, we propose an efficient HEVC to AVS2 transcoding algorithm, which applies a multi-stage decoding information utilization framework to maximize the usage of the decoding information in the transcoding process. The proposed algorithm achieves 11×-17× speed gains over the AVS2 reference software RD 14.0 with a modest BD-rate loss of 9.6%-16.6%.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: The Proposed Algorithmsmentioning

confidence: 99%

Section: Fast Partition Mode Decisionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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