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NVDEC

NVDEC (formerly known as NVCUVID [ 1 ] ) is a feature in Nvidia graphics cards that performs video decoding , offloading this compute-intensive task from the CPU . [ 2 ] NVDEC i...

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NVDEC (formerly known as NVCUVID[1]) is a feature in Nvidia graphics cards that performs video decoding, offloading this compute-intensive task from the CPU.[2] NVDEC is a successor of PureVideo and is available in Kepler and later Nvidia GPUs.

It is accompanied by NVENC for video encoding in Nvidia's Video Codec SDK.[2]

Technology

NVDEC can offload video decoding to full fixed-function decoding hardware (Nvidia PureVideo), or (partially) decode via CUDA software running on the GPU, if fixed-function hardware is not available.[2][3]

Depending on the GPU architecture, the following codecs are supported:[4]

Versions

NVCUVID was originally distributed as part of the Nvidia CUDA Toolkit.[3] Later, it was renamed to NVDEC and moved to the Nvidia Video Codec SDK.[1]

Operating system support

NVDEC is available for Windows and Linux operating systems.[2] As NVDEC is a proprietaryAPI (as opposed to the open-source VDPAU API), it is only supported by the proprietary Nvidia driver on Linux.

Application and library support

  • Gstreamer has supported NVDEC since 2017.[5]
  • FFmpeg has supported NVDEC since 2017.[6]
  • mpv has supported NVDEC since 2017 by the use of FFmpeg.[7]

GPU support

Hardware accelerated decode and encode are supported on Nvidia GeForce, Quadro, Tesla, and GRID products with Fermi or newer generation GPUs.[8]

Véase también

Referencias

  1. 1 2 "Decodificador de vídeo" . Documentación del kit de herramientas CUDA . Nvidia . Consultado el 12 de noviembre de 2017 .
  2. 1 2 3 4 "NVIDIA VIDEO CODEC SDK" . NVIDIA Developer . Nvidia . 23 de agosto de 2013. Consultado el 12 de noviembre de 2017 .
  3. 1 2 "Interfaz del decodificador de vídeo de Nvidia (NVCUVID)" (PDF) . Nvidia . Noviembre de 2015. Consultado el 12 de noviembre de 2017 .
  4. ↑ "Matriz de compatibilidad de GPU para codificación y decodificación de vídeo" . NVIDIA Developer . Nvidia . Consultado el 12 de noviembre de 2017 .
  5. ↑ Michael Larabel (27 de junio de 2017). "GStreamer agrega soporte para decodificación de GPU NVIDIA NVDEC" . Phoronix .
  6. ↑ Michael Larabel (11 de noviembre de 2017). "FFmpeg incorpora la decodificación H.264 acelerada por NVDEC" . Phoronix .
  7. ↑ wm4 (28 de octubre de 2017). "vd_lavc: agregar soporte para nvdec hwaccel" . GitHub .{{cite web}}: CS1 maint: nombres numéricos: lista de autores ( enlace )
  8. ↑ "Matriz de compatibilidad de GPU para codificación y decodificación de vídeo [ NUEVO ] " . 8 de septiembre de 2020.
  • SDK de códec de vídeo de NVIDIA
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