What is the maximum fps from a nvidia gpu for a 720p video. Quicksync does not support hevc at all, and cuvid only does 8bit. The decoder output contains quite a few decoding errors for one thing, everything has a strange purplish. What is the best way for me to make use of my nvidia gt 525m gpu to video playback. Very often i need some test video material to check functionalities in software i write for companies or when i check ffmpeg functions. On linuxx11, there are two competing interfaces for hardware video decoding, vaapi from intel, and vdpau from nvidia.
Nvidia cuda video decoder cuvid problem at certain files. However, any time the cpu utilisation increases or the nvidia gpu is being. Nvidia cuda video decoder 11 performance optimizations for video decoding the cuda sdk samples cudadecodegl and cudadecoded3d9 are intended for simplicity and understanding of how to use this api case. Enable hardware accelerated decoding via dxva2 in xbmc. Not only can dxva2 be used for playback acceleration, it can be used to help with parts of the video recording process. As of july 2019 kepler, maxwell, pascal, volta and turing generation gpus support hardware encoding, and fermi, kepler, maxwell, pascal, volta and turing generation gpus support hardware decoding. Nvidia geforce gtx 200 series nvidia geforce 8000 series except 8800 gtsgtxultra, 9000 series and later anything released in 2008 or later. Page 58 of 73 gpu transcoding intel quicksync and nvidia nvenc posted in general discussion. To change the default mpchc video decoder, go to the options menu, then click on internal filters on the left hand side, then click on video decoder. All nvidia gpus starting with the kepler generation support fullyaccelerated hardware video encoding, and all gpus starting with fermi generation support fullyaccelerated hardware video decoding. Just turn off hardware deinterlacing as it destroys the quality on sd sources. Nvidia cuvid is not enabled in the mpchc settings area. If hardware decoding is possible, use hardware decoding and leave software decoding for anything that the hardware decoder doesnt support. Lav cuvid decoder high quality hardware decoding for nvidia.
Every one watching this video should go on and try the software that will result in the best use of your existing hardware and help you save time. Cuda gpu accelerated h264h265hevc video encoding with ffmpeg. Mpc hevc 2160p artefacts with nvidia cuvid videohelp forum. Vaapi is supported for decoding only since vlc version 1. There are 2 types of software developed, one is command line version that runs independently, and the nother is a output plugin of aviutl. Once you have reached the video decoder options page all you need to do is click on the dropdown box under hardware acceleration and select cuvid. Gpus, cuda works on geforce cards which have cuda your does.
Date january, 2017 author catherine category alternatives, handbrake, hevc, video tips. Uses more gpu memory bandwidth since every video texture is copied back to main ram after decoding hence the copyback in name. All of its functionality has been merged into lav video. Dxva works with all gpus, so you have a lot of choices there. Hardware decoders will generate equivalent output to software decoders. This is the most efficient way to go in terms of processor resources and electrical consumption. Also i dont know if their license allows to redistribute software binaries with cuvid support. Best way to make media player classic use hardware. Browse categories, post your questions, or just chat with other members. I saw a guide claiming that cuvid delivers betters h. The cpu usage is a clear indication that it is doing software decoding.
The gtx 1080 is supposed to support hardware acceleration of h. Hi, i have an optimus laptop with i32310m and nvidia 520m. Dxva2 native has its limitations, though i use it sometimes with interlaced video cause pci bus is too busy with traffic for copyback in this case. Gpu transcoding intel quicksync and nvidia nvenc page. Feature set g introduced dedicated hardware video decoding of hevc ma. This release also adds an intel qsv accelerated overlay filter, an opencl overlay filter, vaapi mjpeg and vp8 decoding support, new vaapi filters, and many other accelerated code path improvements. In addition to video decoding on chip, purevideo offers features. Nvidia gpus contain one or more hardwarebased decoder and encoders separate from the cuda cores which provides fullyaccelerated hardwarebased video decoding and encoding for several popular codecs. Nvidia ffmpeg transcoding guide nvidia developer blog. Currently i am focus on processing videos with deep learing, such as object detection, segmentation and so on.
Cuda gpu accelerated h264h265hevc video encoding with. It is a directshow video decoder utilizing the nvidia hardware decoder engine through the cuda video decoding api cuvid. Dxva2, also known as directx video acceleration allows your hardware to help handle parts of the video decoding process. To demonstrate the impact and benefits of using hardware accelerated video processing in various tasks i performed few decoding and encoding tasks using software decoderencoder and hardware decoderencoder utilising intel quick sync and nvidia cuvid. Cuvid, which is also called nvdec by nvidia now, can be used for decoding on windows and linux. If its just for decoding, quicksync from intel is better than nvidias cuvid, as cuvid doesnt output 10bit, but afaik quicksync does.
Software based decoding is a different beast altogether. Gpu transcoding intel quicksync and nvidia nvenc page 57. So long as the instructions sets are the same, we are dealing with identical images, regardless of who manufactures the hardware. Page 57 of 73 gpu transcoding intel quicksync and nvidia nvenc posted in general discussion. Systems with decode andor encode capability may also offer access to. I personally use lav cuvidlav video its bundled with klite for cuda. Nvidia gpus contain one or more hardwarebased decoder and encoders. Video frames are decoded with the same hardware as with dxva on gpu, but the video frames are required to be copied back to system ram. I would define high quality as equal or near same quality as the original and this is the goal. The goal is to figure out what video decoder offers the best video quality. Mpchc offers a few different options for video decoders. Sep 14, 2011 lav cuvid decoder is a video decoder that utilizes the nvidia hardware decoder engine through the cuda video decoding api cuvid.
With decoding encoding offloaded, the graphics engine and the cpu are free for. Ive read that under turing there is the same quality at 25% reduced bitrate for hevc. Hardware acceleration for video encodingdecoding with ffmpeg. Thank you for all of your replies, and sorry for my poor english. It will fallback to using software mode when the video format is not supported by that specific hw mode or your hardwaredriver. Ffmpeg is a powerful and flexible open source video processing library fully hardware accelerated decoding and encoding by nvidia gpus.
The only unfortunate aspect of lav cuvid is that it is restricted to nvidia gpus only. Quick sync, dxva2 or cuvid for best quality and best. Nvidia provides an extension to cuda called cuvid, which just accesses the hardware decoder. Jan 07, 20 acceleration comparison bw cuda cores vs. Please note, that intel quick sync and nvidia cuvid are supported both. The lav cuvid decoder is a video decoder for nvidia graphics cards, which uses the nvidia hardware video decoder through the cuda video decoding api cuvid.
Sep 23, 2014 page 57 of 73 gpu transcoding intel quicksync and nvidia nvenc posted in general discussion. Just recently, ive tested the computational cost of decoding 10bit h. Mpc hevc 2160p artefacts with nvidia cuvid videohelp. It supports any video format supported by nvidia hardware, including h264, vc1, mpeg2 and mpeg4asp divxxvid. Enable hardware accelerated decoding via dxva2 in xbmc for windows. Amd vs nvidia from another point of view streaming, video playback, display compatibility discussion we have had discussions and fights here everyday about whether the rx 480 or gtx 1060 is faster. This publication supersedes and replaces all other information previously supplied. Mpchc will show hw in its status bar when hardware decoding is active. Support for purevideo has been available in nvidia s proprietary driver version 180 since october 2008 through vdpau. Gpu transcoding intel quicksync and nvidia nvenc page 58. In my opinion, get the most performance for the budget you can.
It supports all formats that the nvidia hardware can decode, which includes h264, vc1, mpeg2 and mpeg4asp divxxvid. This is a decoder for nvidia gpus, it does not work with atiamd or. I recently purchased a kaby lake pc and tried intelquick sync but it doesnt seem to be working when i try to watch a tv recording on ipad i get immediately two log files attached below i tried other videos and the same but picture is always blank and no sound. Sep 23, 2014 page 58 of 73 gpu transcoding intel quicksync and nvidia nvenc posted in general discussion. The decoder output contains quite a few decoding errors for. Can be used by any hardware that supports dxva2 intel might have some issues with vc1. Dxva2 and cuvid are the two decoders i am going to test out on this page. These options have to be prefixed before each input for which theyre intended. But this is going to be slow slow since it only uses the cpubased software. There is no difference in quality between any of the decoding modes, including software decoding. When playing such files without hw acceleration enabled, my cpu hits 100%, so i trade artefacts for video lag the artefacts are completely repeatable.
Video card for entry level htcp smooth 4k videomovies. Intel quick sync video is a video encoding and decoding hardware within the. Anyway, at the time i had ugly video decoding using lav dxva2native, i didnt have any problem with lav cuvid, the one that gets ugly is only the dxva, but now both of them are okay. Its still in its early stages, but its already been tested thoroughly and supports all major formats that the nvidia hardware can decode, which are right now h264, vc1, mpeg2 and mpeg4asp divx xvid. Also there is no reason to use ffdshow bloatware anymore because if lav filters. I have mixed results with cpu vs gpu cuvid decoding.
Generally, vaapi is used for intel and broadcom graphic cards, while vdpau is used for amdati and nvidia cards. Before you spend a lot of energy on accelerating decoding, its worth doing a few tests if it would even speed things up as you expect. Ive search for a while and read posts saying that nvidia does not support 422, but this seams odd. Nvenc software is meant to investigate performance and image quality of hw encoder nvenc of nvidia. Cuda gpu accelerated h264h265hevc video encoding with ffmpeg high quality ffmpeg video encoding. Additionally, a free device driver is available, which also supports the purevideo hardware. Best way to make media player classic use hardware acceleration. I am just wondering if amds gpus have sdk similar to nvidia s cuvid to decode h264 video directly into gpu ram. With decoding encoding offloaded, the graphics engine and the cpu are free for other operations.
When i try to play some of the 4k demo files my cpu utilization is atrocious. Ffmpeg is a free and opensource project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams. I know that if ffmpeg is compiled with libnpp support you can do a full hardware transcoding with scaling, like this. But on other hand, what audio has to do with video decoding. At its core is the ffmpeg program itself, designed for commandlinebased processing of video and audio files, and widely used for format transcoding, basic editing trimming and concatenation, video scaling, video post. Hi folks, i would like to introduce my lav cuvid decoder.
And dxva2 native is not a good solution for nvidia, as it does not allow madvrs. Id like to know what technologies have been added bframes maybe. Nvidia gpus ship with an onchip hardware encoder and decoder unit often referred to as nvenc and nvdec. Many users of freemake movie converter heard of cuda and dxva technologies integrated into the software to speed up video conversion. Lav cuvid decoder high quality hardware decoding for. Cuvid is suggested for nvidia cards but i still find dxva2 to be superior with my card. Broadcaster software obs, encoding being completely offloaded to nvenc. Amd vs nvidia from another point of view streaming, video. Problems decoding of multiple hd videos highperformance pc systems required low costs and high performance demanded by the market 4. While opencl might be an open cuda, it does not provide a cuvidlike video decoder extension on its own. Purevideo is integrated into some of the nvidia gpus, and it supports hardware decoding of multiple video codec standards. This gets released while i was just forcing my bedroom machine to use software decoding temporarily. Jan 15, 2018 currently i am focus on processing videos with deep learing, such as object detection, segmentation and so on.
Purevideo is nvidias hardware sip core that performs video decoding. Jul 24, 2019 nvidia encoding and decoding hardware. Once you have met the hardware and software requirements, youll need. While opencl might be an open cuda, it does not provide a cuvid like video decoder extension on its own. If you have an nvidia gpu which supports hardwareaccelerated video encoding and decoding, its simply a matter of compiling ffmpeg binary with the required support for nvidia libraries and using the resulting binaries to speed up video encodingdecoding. Mpchc video decoder comparison mpchc video decoders.
Cpu g2020 onboard card ram 8gb when i play 4k videos, on youtube or any 4k videos, its totally lagging. All testsbenchmarks were performed using lenovo legion y530 in the following configuration. This cuda video decoder library makes use two different. When using a dxva decoder, these steps are enabled from the nvidia or amd control panel settings. I am just wondering if amds gpus have sdk similar to nvidias cuvid to decode h264 video directly into gpu ram. In combination with nvenc it offers full hardware transcoding. However, not everyone knows how and when these technologies actually work and what real value they add. Separate from the cuda cores, nvencnvdec run encoding or decoding workloads without slowing the execution of graphics or cuda workloads running at the same time. I3 dual core vs i5 quad core for htpc that can handle 4k video.
Hwswcombined video control system that utilizes nvidias gpus. According to lav filters author, cuvid and intel quicksync are outdated, dxva copyback direct mode beats them both in performance. Hi, looking for the best video card for 4k videos on my htcp. Nvidia s proprietary device driver is available for multiple operating systems and support for purevideo has been added to it. Nvidia corporation products are not authorized as critical components in life support devices or systems without express written approval of nvidia corporation. Default is generally a safe choice and it does deliver 1% cpu usage.
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