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NVDEC - Hardware-Accelerated Video Decoding

Posted by Oleh Muliarchuk on 06 June 2018 08:04

NVIDIA GPUs contain a hardware-based decoder (referred to as NVDEC) which provides fully-accelerated hardware-based video decoding for several popular codecs. With complete decoding offloaded to NVDEC the graphics engine and the CPU are free for other operations. NVDEC supports much faster than real-time decoding which makes it suitable to be used for transcoding applications, in addition to video playback applications.

NVDECODE API enables software developers to configure this dedicated hardware video decoder. This dedicated accelerator supports hardware-accelerated decoding of the following video codecs on Windows platform: MPEG-2, VC-1, H.264 (AVCHD), H.265 (HEVC), VP8, VP9 (see table below for codec support for each GPU generation).

GPU	H.265 (HEVC)		H.264 (AVCHD)		MPEG-2
GPU	MAX Color	MAX Res.	MAX Color	MAX Res.	MAX Color	MAX Res.
Kepler	N/A	N/A	8-bit	4096 x 4096	8-bit	4080 x 4080
Maxwell (1st Gen)*	N/A	N/A	8-bit	4096 x 4096	8-bit	4080 x 4080
Maxwell (2nd Gen)	N/A	N/A	8-bit	4096 x 4096	8-bit	4080 x 4080
Maxwell (GM206)	10-bit	4096 x 2304	8-bit	4096 x 4096	8-bit	4080 x 4080
Pascal	12-bit	8192 x 8192**	8-bit	4096 x 4096	8-bit	4080 x 4080
Volta	12-bit	8192 x 8192	8-bit	4096 x 4096	8-bit	4080 x 4080

More details at https://developer.nvidia.com/nvidia-video-codec-sdk

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