Direct to GPU Video Transfers

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2011, No. 1, pp. 1–10
Abstract: Modern graphics processing units (GPUs) are high-performance parallel floating point processors ideal for the image and video processing operations required for broadcast and digital film applications. Historically, image data transfer to the GPU required that the data pass through a staging buffer prior to upload to or download from the GPU as the buffers utilized by the video I/O device could not be used directly by the GPU. This memory copy operation created a performance bottleneck. Direct to GPU Video Transfer enables the sharing of a lockable system memory buffer between a video I/O device and the GPU eliminating the latency incurred by the memory copy. Results demonstrate transfer times for SD, HD, 2K and 4K frames approaching realized PCI Express 2.0 limits. Overall system latency can be further reduced by overlapping sub-frame transfers with the video device capture and scanout.
Publication Date: 2011-10-01
DOI: 10.5594/M001104
Link: https://doi.org/10.5594/M001104
Author(s): Thomas TrueNVIDIA Corporation, Santa Clara, CA USA
Ashley ReidNVIDIA Corporation, Wuerselen, Germany
James JonesNVIDIA Corporation, Santa Clara, CA USA
Keyword(s): GPU
Copyright: © 2011 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Alt A. , “Video Capture, Encoding and Streaming in a Multi-GPU System,” NVIDIA Technical Brief, November 2010 . EXTERNAL
Venkataraman S. , “NVIDIA Quadro Dual Copy Engines,” NVIDIA Technical Brief , October 2010 . EXTERNAL

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Thomas True, Ashley Reid, and James Jones; Direct to GPU Video Transfers, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011. Available at https://doi.org/10.5594/M001104

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Thomas True, Ashley Reid, and James Jones; Direct to GPU Video Transfers, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011. Available at https://doi.org/10.5594/M001104

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Thomas True, Ashley Reid, and James Jones; Direct to GPU Video Transfers, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011. Available at https://doi.org/10.5594/M001104

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<span class="citation">Thomas True, Ashley Reid, and James Jones; <cite>Direct to GPU Video Transfers</cite>, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011. Available at <a href="https://doi.org/10.5594/M001104" target="_blank" rel="noopener">https://doi.org/10.5594/M001104</a></span>

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Thomas True, Ashley Reid, and James Jones; Direct to GPU Video Transfers, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011
doi: 10.5594/M001104
url: https://doi.org/10.5594/M001104

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Thomas True, Ashley Reid, and James Jones; <cite id="bib-10-5594-m001104">Direct to GPU Video Transfers</cite>, SMPTE Meetings and Conferences ( October 2011); SMPTE, 2011
<span class="doi">10.5594/M001104</span>
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