A parallel H.264/SVC encoder for high definition video conferencing

Sanz-Rodríguez, Sergio; Alvarez-Mesa, Mauricio; Mayer, Tobias; Schierl, Thomas

doi:10.1016/j.image.2014.10.003

Cited by 5 publications

(1 citation statement)

References 66 publications

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“…The openSVC decoder achieves a speed-up up to 50 times faster than the SVC reference software decoder Joint Scalable Video Model (JSVM) [16]. Authors in [17] proposed a SVC video encoder dedicated to HD video conferencing applications. This encoder combines slice-level parallelism for frame encoding with block-level parallelism for the upsampling and interpolation filter processes.…”

Section: B Real Time Video Codecsmentioning

confidence: 99%

4K Real Time Software Solution of Scalable HEVC for Broadcast Video Application

Parois¹,

Hamidouche

Cabarat

et al. 2019

IEEE Access

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Scalable high-efficiency video coding (SHVC) is the scalable extension of the high-efficiency video coding (HEVC) standard. SHVC enables spatial, quality, bit-depth, color gamut, and codec scalability. The architecture of the SHVC encoder is based on multiple instances of the HEVC encoder where each instance encodes one video layer. This architecture offers several advantages of being modular and close to the native HEVC coding block scheme. However, the close-loop SHVC architecture requires the complete decoding of the reference lower layer frames to decode a higher quality layer, which considerably increases the complexity of both encoder and decoder processes. In this paper, we propose an end-to-end 4K real-time SHVC solution, including both software encoder and decoder, for video broadcast applications. The SHVC codec relies on low-level optimizations for specific Intel x86 platform and parallel processing to speed up the encoding and decoding processes. The proposed encoder enables real-time processing of 4Kp30 video in 2× spatial scalabilities on the 4 × 10 cores Intel Xeon processor (E5-4627V3) running at 2.6 GHz. In addition, the SHVC decoder enables to decode, respectively, the lower quality layer in full HD (1920 × 1080p30) resolution, an advanced RISC machine (ARM) Neon mobile platform, and the enhancement layer in UHD (3840 × 2160p30), on a fitted laptop, with 4 cores Intel i7 processor running at 2.7 GHz. Finally, experimental results have shown that the proposed solution can reach a high rate-distortion performance close to the reference SHVC reference software model (SHM) with a speedup of 37 and 66 in intra and inter coding configurations.INDEX TERMS Scalable video coding, HEVC, SHVC extension, real time video codecs.

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Section: B Real Time Video Codecsmentioning

confidence: 99%

4K Real Time Software Solution of Scalable HEVC for Broadcast Video Application

Parois¹,

Hamidouche

Cabarat

et al. 2019

IEEE Access

View full text Add to dashboard Cite

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A collaborative client participant fusion system for realistic remote conferences

Song

Wen

et al. 2015

J Supercomput

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Efficient parallel architecture of an intra-only scalable multi-layer HEVC encoder

Parois¹,

Hamidouche

Mora³

et al. 2016

2016 Conference on Design and Architectures for Signal and Image Processing (DASIP)

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International audienceThe High Efficiency Video Coding (HEVC) standard enables meeting new video quality demands such as Ultra High Definition (UHD). Its scalable extension (SHVC) allows encoding simultaneously different representations of a video, organised in layers. Thanks to inter-layer predictions, SHVC provides bit-rate savings compared to the equivalent HEVC simulcast encoding. Therefore, SHVC seems a promising solution for both broadcast and storage applications. This paper proposes a multi-layer architecture of a pipelined software HEVC encoders with two main settings: a live setting for real-time encoding and a file setting for encoding with better fidelity. The proposed architecture provides a good trade-off between coding rate and coding efficiency achieving real-time performance of 1080p60 and 1600p30 sequences in 2× spatial scalability. Moreover, experimental results show more than a 26× and 300× speed-up for the file and live settings, respectively, with respect to the scalable reference software (SHM) in an intra-only configuration. © 2016 ECSI

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A parallel H.264/SVC encoder for high definition video conferencing

Cited by 5 publications

References 66 publications

4K Real Time Software Solution of Scalable HEVC for Broadcast Video Application

4K Real Time Software Solution of Scalable HEVC for Broadcast Video Application

A collaborative client participant fusion system for realistic remote conferences

Efficient parallel architecture of an intra-only scalable multi-layer HEVC encoder

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