Cuvid vs nvdec

Cuvid vs nvdec. 94fps) that I tried. I've also reported this Nvidia, in case it's a driver issue. ts) in FFmpeg, and the video can only output 468 frames; Try using NVDEC(ffmpeg -hwaccel nvdec -i C:\a-3. DXVA2 copy-back is lossless, but slow. Level-2 vs. NVIDIA GPUs - beginning with the NVIDIA® FermiTM generation - contain a video decoder engine (referred to as NVDEC in this document) which provides fully-accelerated hardware video decoding capability. Nov 11, 2019 · I'm trying to encode, apply a filter and decode a video through GPU. We'll see why in a moment. 264 (AVCHD), and H. When using scale_npp with cuvid it can be used with just -vf scale_npp= whereas nvdec requires -vf hwupload_cuda,scale_npp= Nov 8, 2022 · NVDEC Application Note. Windows 10. Last known version to work OK is 3. Dozerplex. 264, HEVC (H. So I set mine up like below Jan 15, 2023 · Using this approach, I actually don't see a significant difference between nvdec+winvk vs d3d11va+d3d11. It works for video up to 4K but not 4K at 50fps. yadif is at 0. FFmpeg libraries compiled with NVDEC support. 1% at 1 core at ~1200 mhz or lower. Dec 27, 2023 · Hardware Acceleration: Level-1 vs. ts is a 1080i50 file: ffmpeg -hwaccel cuvid -c:v h264_cuv… Nov 16, 2018 · So, if the first commit is having any effect, that means you are not running a full GPU pipeline (transfer_from and transfer_to are about moving between system and GPU memory). FFmpeg is the most popular multimedia transcoding software and is used extensively for video and audio transcoding. The above way is not optimal in any case: I suspect that each frame is transferred about 3 times between the CPU and GPU (1 to GPU for decoding after loading, 2 to CPU into moviepy frame array, 3 to GPU to Jul 28, 2019 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. dxva native up to 0. But nvdec is supposedly better than native cuda decoding. HandBrake is an open-source video transcoder available for Linux, Mac, and Windows. Nvenc helps, especially if for some Aug 24, 2015 · DXVA2 (native) (各画像はクリックで拡大) CUVID. Closed h264 h264_crystalhd h264_v4l2m2m h264_vdpau h264_cuvid ) (encoders Nov 14, 2018 · Tried a different file, a recording at 720p50 from Beijing Olympics opening ceremony (a five minute sample of it actually) and got completely different results. Are you sure the version of FFMpeg you linked OpenCV against was compiled with NVDEC support? Mar 11, 2021 · But first a general question. NVIDIA GPUs contain a hardware-based decoder (referred to as NVDEC in this document) which provides fully accelerated hardware-based video decoding for several popular codecs. This works correctly: "ffmpeg-hwaccel cuvid -c:v h264_cuvid -i ", and so does May 7, 2018 · Hi It seems this whole situation is starting to get a little bit more complex. Using hwdec=cuda or hwdec=nvdec in the mpv. CUVID offers decoders for H. DontKnow009. 1, Arch Linux. Codec support varies by hardware. The first one will use old cuvid decoder path and the second one use nvdec accelerator path. Since NVENC handles all kinds of encoding and not just H265, it would still be helpful for transcoding to H264. SirMaster. mp4 -vf scale_npp=-1:720 -c:a copy -c:v h264_nvenc -b:v 5M output2. NVDEC is widely used for video processing applications, especially video transcoding and playback applications. It seems this is never going to be updated given that NVIDIA now have nvdec. conf, results in software decoding. It is encoded by one to three NVENCs, when no split, two-way SFE, and three-way SFE are used, respectively. Aug 15, 2023 · No hay duda de que NVIDIA tiene un dominio absoluto en el mundo del streaming de contenido. Apr 10, 2023 · I am implementing a video decoder using NVidia's NvDec CUVID feature. 71 A: For decoder, please refer to the NVDEC application note included in the SDK documentation to get an idea about performance. 895912 bwdif looks good, and fast too even without a cuda version. Apr 15, 2019 · These hwaccels, particularly cuvid (and the nvdec wrapper) do not implement threading support. H. ffmpeg -decoders displays some cuvid-related things, but nothing nvdec-related. Encode, nope. 5GHz. My NVIDIA GPU is a GeForce 820M, and while it's listed as CUDA-capable in NVIDIA's site, under "CUDA-Enabled GeForce and TITAN Products", with a compute capability of 2. Benchmark NVDEC with StreamReader¶ In this section, we compare the performace of software video decoding and HW video decoding. The Level-3 hardware acceleration amazes us with up to 133 fps. 69 while cuvid+deint adaptive is at 0. Yet in FFmpeg they coexist and exhibit different behaviors. Sample decode using NVDEC: ffmpeg -hwaccel nvdec input output. 264, H. Nov 13, 2018 · The NVENC/NVDEC Matrix and Video Codec SDK pages have been updated. The bicubic looks close as well. With complete decoding offloaded to NVDEC, the graphics engine and CPU are free for other operations. GPU hardware accelerator engines for video decoding (referred to as NVDEC) and video encoding (referred to as NVENC) support faster than real-time video processing which makes them suitable to be used for transcoding applications, in addition to video playback. ts is a 1080i50 file: ffmpeg -hwaccel cuvid -c:v h264_cuv… I am implementing a video decoder using NVidia's NvDec CUVID feature. DXVA2 Copy-back is the best choice of hardware acceleration. I have two Emby servers, one that does not have a gpu, and another that has an iGPU that supports quicksync. ) hwdec=auto-safe or auto-safe-copy is a good option too. ts (ffmpeg -c:v h264_cuvid -i C:\a-3. NVDEC supports much faster than real-time acceleration? As far as I understand nvdec is simply a rebranding of cuvid. nvdec is not displayed when running ffmpeg -hwaccels. The NVCUVID API supports the following video codec formats: MPEG-2, VC-1, H. But cuda-copy and nvdec-copy, work. cuvid does not auto-detect the decoder. as mentioned previously, plex encoding to 264, which is not all that difficult. Ensure you increase the allocated RAM for your GPU to at least 128 ( raspi-config > Performance Options > GPU Memory). D3D11 and selecting your GPU from Nov 16, 2018 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. The performance results are shown in Figures 4 and 5 for HEVC and AV1, respectively. Nov 8, 2022 · NVENC and NVDEC can be effectively used with FFmpeg to significantly speed up video decoding, encoding, and end-to-end transcoding. ts -f mpegts C:\a-3-nvdec. 8. It is also no longer being developed and does not support HEVC. 1. In the binaries that I currently have, when I enumerate the available h. Playback: NVDEC decoding. I am Nov 8, 2019 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. NVIDIA provides software API and libraries for programming NVDEC. For these decoders, thread count(s) explicitly assume the surface count. FFmpeg in Action. 29. 264 encoders (using avcodec_find_encoder(AV_CODEC_ID_H264)) I *do* in fact see the NVENC encoder, so success there. 264, HEVC, MJPEG, MPEG-1/2/4, VP8/VP9, VC-1. 18 there was a note about the TU117 having the same NVENC unit as the Volta-gpu (GV100). Newer versions drop frames. yadif 0. During transcoding, NVDEC decodes the video. Nov 16, 2018 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. So: -hwaccel nvdec -hwaccel_output_format cuda instead of -hwaccel cuvid -c:v mpeg2_cuvid But ultimately, these changes should make things faster Nov 24, 2018 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. According to the manual, dxva2 can result in video quality reduction, so I suggest changing it to d3d11va / d3d11va-copy if you're on Windows 8+. This document explains ways to accelerate video encoding, decoding and end-to-end transcoding on NVIDIA GPUs through FFmpeg which uses APIs exposed in the NVIDIA Video Codec SDK. Could the Quadro RTX 4000 be added? Mar 30, 2019 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. Introduction. I have the below code thus far but I don't think I am doing it right because the frames are around 42 FPS for a 4K encode and that seems too low to me considering this is the 3080 Ti which has a ton of CUDA cores compared to all other cards in the GeForce lineup. 3. I can run this from the commandline to transcode a video to 720p: ffmpeg -vsync 0 -hwaccel cuvid -hwaccel_device 0 -c:v h264_cuvid -i input. 20, but now the NVENC Support Matrix states that there is no HEVC B Frame support on the TU117. 983495 cuvid 0. 264 encoded stream of 2048x2048x15fps video. Example command, input. Nov 16, 2018 · Recent ffmpeg versions fail to use the deinterlacer of nvdec (cuvid). 265 results comparison. ts is a 1080i50 file: ffmpeg -hwaccel cuvid -c:v h264_cuv… Nov 17, 2018 · So, if the first commit is having any effect, that means you are not running a full GPU pipeline (transfer_from and transfer_to are about moving between system and GPU memory). 657Z aeFqX6IWx:Node [Internal Node]:Worker [RzEB8stzS]:To see live CLI output, enable 'Log full FFmpeg/HandBrake output' in the staging section on the Tdarr tab before the job starts. mp4 and transcodes it to two different H. You can easily integrate NVIDIA hardware-acceleration to these applications by configuring FFmpeg to use NVIDIA GPUs for video encoding and decoding tasks. 987913 bwdif 0. Both give me 650-710 fps on a test video (H265 10bit 59. (You can see it in nsight) The vdpau deinterlacer can be used with frame readback but as it is part of the presentation mixer you can only read back post processed rgb frames, making it generally unsuitable for transcoding vs real Jun 1, 2023 · I also tried using CUVID to decode a-3. You signed out in another tab or window. NVENC and NVDEC can be effectively used with FFmpeg to significantly speed up video decoding, encoding, and end-to-end transcoding. 编译步骤. You switched accounts on another tab or window. 5% at 1-2 core changing heavily changing. mp4. NVIDIA VIDEO DECODER (NVDEC) INTERFACE PG-08085-001_v07 | 1 Chapter 2. I'm not sure if it's still true but I have always been told to use D3d11 with MadVR because D3D11 has a benefit when you use it together with MadVR. NVDEC runs completely independent of compute/graphics engine. Setup. 3% CPU at idle 300 mhz audio decoding i guess. Sep 9, 2018 · CUVID, which is also called NVDEC by NVIDIA now, can be used for decoding on Windows and Linux. Nov 27, 2020 · GPU-accelerated video processing integrated into the most popular open-source multimedia tools. Maybe around 15-20%. Reload to refresh your session. It uses nvidia Decode, definitely. The software API, hereafter referred to as NVDECODE API lets developers access the None of them is exactly the same. FFmpeg is one of the most popular open-source multimedia manipulation tools with a library of plugins that can be applied to various parts of the audio and video processing pipelines and have achieved wide adoption across the world. This could totally be an issue in how I am setting up the AVCodecContext, however bonnecat. Telsa P40 decode with up to 340 fps in 2560x1440 and 160fps in 3840x2160 thanks to NVDEC accelerated H. NVENC/NVDEC介绍. Level-3. 8. 979554 mcdeint 0. Is either of nvdec/cuvid the recommended one to use? Is either one deprecated? 2. • 3 yr. Supported Accelerations. We will shortly provide a way to try an alternative way for decoding HEVC with Nvidia. Sep 4, 2018 · The NVENC/NVDEC Matrix and Video Codec SDK pages have been updated. PyTorch / TorchAudio with CUDA support. My top priority is low latency (minimal lag between image acquisition on camera → encoding ->network transmission → decoding → image display on PC) I have the application working with a ~280-320ms latency using ffmpeg parser+decoder (using CPU only, no GPU involved). Figure 5 shows that the Video Codec SDK 10 presets behave access the hardware acceleration abilities of NVENC and NVDEC. If it Sep 23, 2020 · One would be related to NVDEC vs. Note that you can't use this with gpu-context=winvk (if you want to use Vulkan in Windows. 265 and VP9, VP8, as mentioned before. 264 decoder. However, on the quicksync machine, it ends up having errors (grey screen with a couple of squares in the top left corner). En este artículo os vamos a explicar de forma sencilla qué son exactamente y cómo funcionan. NVDEC decoding for NVidia graphics adapters. 264 (1920x1080) on i7-4770K 3. Im using H264_nvenc for encoding it, and trying to use h246_cuvid for the decoding, but FFMPEG can't find the decoder. Dxva2 and D3d11 are almost exactly the same, except dxva2 uses d3d9 while D3d11 uses D3d11 functionality, the can both decode the exact same formats. Thanks! In the Video Codec SDK 9. QuickSync does not offer any benefits. The main difference between them is that NVDEC does not Jan 5, 2024 · To test transcoding, the original 8K videos were pre-encoded with very high bitrates. mp4 small2. This is for the olympics sample (720p50 → 720i50 → 720p50). •. You either want to use the new nvdec hwaccel, or the old cuvid decoder. 0. The decoder (for example h264_cuvid) comes before -i. The full set of codecs being available only on Pascal hardware, which adds VP9 Jul 22, 2019 · NVDEC offers decoders for H. # if you want to decode a h264 stream. Example: ffmpeg -y -vsync 0 -vcodec Mar 8, 2024 · NVDEC can be used for decoding bitstreams of various formats: AV1, H. Reply. OK, then it's most likely about a known issue with Nvidias HEVC decoder. 986668 w3fdif 0. Nov 15, 2018 · Recent ffmpeg versions fail to use the deinterlacer of nvdec (cuvid). 結果、CPU使用率はどちらも変わらず3-5％、GPU使用率は前者が10％、後者が13％、VRAM使用率も後者が多く、CUVIDだと単純にGPUの負荷が微妙に高くなっただけでした。. Expected behavior. The quickest way to do this is to hold CTRL+F (Windows) or CMD+F (Mac) and type the model name into the page search. Note that while using the GPU video encoder and decoder, this command also uses the scaling filter (scale_npp) in FFmpeg for scaling the decoded video output into multiple desired resoluti Jun 13, 2017 · CUVID. This is a comprehensive set of APIs, high-performance tools, samples, and documentation for hardware-accelerated video encode and decode on Windows and Linux. When 4K files get transcoded from the older machine (software), the movie plays fine. The following command reads file input. ago. The newest native/copy-back such as nvdec/copy, d3d11va/copy, vaapi/copy, and so on should be safe You signed in with another tab or window. To use the new style nvdec hwaccel: Nov 22, 2018 · I believe that the nvdec and vdpau deinterlacers are the same but they dont’t have to be - I know the nvdec one is at least partially implemented as CUDA code. Hardware decoding. Native cuda decoding is entirely handled by the hardware, with no involvement from software. NVENC和NVDEC是NVIDIA的硬件加速编码和解码API，以前叫CUVID。在Windows和Linux平台支持。 使用NVENC和NVDEC的前提[1]： GPU的支持。 显卡驱动的支持。 安装NIVIDA Codec SDK。 如何需要支持npp则还需要安装CUDA toolkit[4]。 3. They differ in how frames are decoded and forwarded in memory. Note that FFmpeg offers both NVDEC and CUVID hwaccels. To the eyes of authors, lanczos(1) appears to be most similar to NVDEC. However, the GLX part of libva has seemingly been deprecated, with To use NVDEC with TorchAudio, the following items are required. ie, the maximum Nov 15, 2018 · So here are the results with nvenc_h264 as the encoder in all cases, suggesting that libx264 and nvenc_h264 lossless are indeed equivalent. exe -y -loglevel 16 -hide_banner -threads 0 -sws_flags lanczos -vsync 0 Apr 12, 2020 · Hello, I have a C++ application that decodes and displays (via D3D) an h. ffmpeg -c:v h264_cuvid -i input output Full hardware transcode with NVDEC and NVENC: ffmpeg -hwaccel cuda -hwaccel_output_format cuda -i input -c:v h264_nvenc -preset slow output If ffmpeg was compiled with support for libnpp, it can be used to insert a GPU based scaler into the chain: May 16, 2017 · I am implementing a video decoder using NVidia's NvDec CUVID feature. txt. However, when I do avcodec_open2, it fails. decoding x265/hevc is extremely hard, so you definitely want nvdec/265/hevc support. 980813 yadif_cuda 0. DXVA2 native has its limitations, though I use it sometimes with interlaced video cause PCI bus is too busy with traffic for copy-back in this case. ie, the maximum The NVIDIA Video Decoder (NVCUVID) API enables developers to use the hardware video decode capabilities with the ability to interoperate video with compute and graphics. 2. Decode as CUDA frames¶ cuvid is noticably (although not drastically) faster. e. Mar 10, 2022 · NVDEC hardware-based decoder offers much faster video decoding for MPEG-2, H. Nvidia GPU with hardware video encoder. In either case, you need different arguments. 说明： 使用的FFmpeg的版本4. You should switch to D3D11 Automatic which is hardware accelerated like DXVA2, but it's a perfect quality lossless decoding. WSL2 and gstreamer using nvenc and nvdec (NVIDIA's hardware acceleration) #6357. It also includes support for GPU based deinterlace. NVIDIA has provided hardware-accelerated video processing on GPUs for over a decade through the NVIDIA Video Codec SDK. Hardware Video Decoder Capabilities GPU Architecture MPEG-2 VC-1 H. For the purpose of the current discussion, we care more about the GPU usage caused by using copy-back procedure, than CPU usage. According to chapter 2 of the (woefully inadequate) manual, decoding limits are specified by GPU architecture. TorchAudio’s binary distributions are compiled against FFmpeg 4 libraries, and they contain the logic required for hardware-based decoding. Commands below for reference Nov 14, 2018 · Recent ffmpeg versions fail to use the deinterlacer of nvdec (cuvid). Both will output cuda surface. FFmpeg is used by many projects, including Google Chrome and VLC player. performance chart for the Ducks Take Off sequence with the Video Codec SDK 9. -hwaccel cuda -hwaccel_output_format cuda -c:v hevc_cuvid -i file-hwaccel cuda -hwaccel_output_format cuda -i file. 264 (AVCHD) YUV 4:2:0 column, then your GPU supports hardware encoding in Livestream Studio. Refer to Chapter 2 for the complete details about video capabilities Jan 17, 2023 · Enabled decoders: aac hevc rawvideo av1 mjpeg vc1 h263 mpeg1video vp8 h264 mpeg2video vp9 h264_cuvid mpeg4 Enabled encoders: h264_nvenc libx264 Enabled hwaccels: av1_nvdec mpeg1_nvdec vp8_nvdec h264_nvdec mpeg2_nvdec vp9_nvdec hevc_nvdec mpeg4_nvdec wmv3_nvdec mjpeg_nvdec vc1_nvdec Sep 16, 2018 · A simple use of h264_cuvid like the following example: ffmpeg -c:v h264_cuvid -surfaces 8 -… I am experiencing a weird vram memory allocation difference running same ffmpeg decoding with NVDEC in different GPU hardware. Here is the final test of speed comparison using 3 levels of hardware acceleration. This does not yet support GPU to Video direct rendering. Mar 22, 2022 · The video codecs of the input and the output must be supported by the hardware, and there are other "usual" limitations (like supported pixel format and maximum resolution). Sep 8, 2019 · GPU. In combination with NVENC, it offers full hardware transcoding. None of them is exactly the same. Sample decode using CUVID: May 6, 2018 · I have mixed results with CPU vs GPU cuvid decoding; on some of my PCs the CPU decoding is faster, albeit it uses more CPU power obviously. That command line cannot work, so your results are not surprising. NVDEC can be used for decoding bitstreams of various formats: AV1, H. CUDA does not mean the CUDA-SDK code – just hardware-acceleration via CUDA. If you are using the HA addon, you may need to use the full access variant and turn off Protection mode for hardware acceleration. Hardware Setup. To use the old style cuvid decoder: $ ffmpeg -hwaccel cuvid -c:v h264_cuvid small. The following accelerations are currently supported by Emby. Jun 27, 2019 · mpv 0. Now let’s add NVIDIA hardware decoder head to this command to assign decoding computation to GPU. They each have their own way of parsing etc. encode quality), memory bandwidth available, application design. 265/HEVC VP8 VP9 Fermi (GF1xx) Maximum Resolution: Figure 4. /ffmpeg -y -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i rtsp://admin:startdt123@192. Oct 19, 2019 · Install the nv-codec-headers package will enable ffnvcodec vdpau nvenc nvdec cuda cuvid (NVDEC is just a rebranding of CUVID). Portable mpv log. 1 presets. ffmpeg. It's not a lossless decode. 168. So:-hwaccel nvdec -hwaccel_output_format cuda instead of-hwaccel cuvid -c:v mpeg2_cuvid Jul 28, 2019 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. The software API, hereafter referred to as NVDECODE API lets developers access the Limitation using native (Quicksync, CUVID/CUDA, old DXVA2 native, old VDPAU) is lack of freedom doing post processing can cause glitch, massive frame drops, stuttering, flashing frame, corrupt time stamp, slowest playback and so on. Raspberry Pi 3/4 . access the hardware acceleration abilities of NVENC and NVDEC. So I tested each decoder one at a time, and found DX11VA seems to give me the highest FPS conversion, NVDEC second fastest, CUVID least fast transcode speed. I mention this because of these 2 lines in the hwdec documentation of mpv: Nov 2, 2023 · You signed in with another tab or window. There is no difference in quality between any of the decoding modes, including software decoding. Note this could increase the job report size substantially. 2023-02-18T10:50:42. Aug 6, 2019 · dxva2 copyback 2. VDPAU hasn’t been updated for a while, and is now missing HEVC 10-bit and VP8/VP9 support. -hwaccel cuvid is deprecated and replaced by -hwaccel cuda -hwaccel_output_format cuda. 264 videos at various output resolutions and bit rates. vo=gpu is redundant as it's enabled by default. The encoder (for example h264_qsv) comes after the input file name (after -i ). According to LAV Filters author, CUVID and Intel QuickSync are outdated, DXVA copy-back (direct mode) beats them both in performance. You don't really want to use DXVA2 Native as visual quality is compromised. 1. Table 1. ie, the maximum h265 horizontal resolution is 8192 on a GP10x, 4096 on a GP100 or less, and unsupported on any architecture less than GM206. I am trying to transcode videos to multiple resolutions using ffmpeg and node. 動画を綺麗に表示させる系のフィルター類を使って May 5, 2017 · Which one? by Admin Fri May 05, 2017 5:45 pm. 1 has to be fixed as well. 1, it doesn't seem to support NVDEC. CUVID and the other one would be about client capabilities. Jan 31, 2020 · 2. cuvid 2. We used two different input sequences for comparison: Jockey and Kayaking. NVIDIA also supports GPU-accelerated encode and decode through None of them is exactly the same. You should be using nvdec anyway. Quality vs. D3D11 Automatic is Native. Decode as CUDA frames¶ Status: new → closed. js. 9 If you want to try it with lossless settings (I can’t since I don’t have that much disk space), it is here: Dropbox - File Deleted Nov 16, 2018 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. DXVA2 native works best Apr 20, 2023 · NVDEC can be used for decoding bitstreams of various formats: AV1, H. For encoder, the answer depends on many factors, some of which include: GPU in use and its clock speed, settings used for encoding (i. The libva-vdpau-driver project gave us a VA-API implementation on-top of VDPAU. VIDEO DECODER CAPABILITIES Table 1 shows the codec support and capabilities of the hardware video decoder for each GPU architecture. The main difference between them is that NVDEC does not In the end, I just want nvenc. The browser will jump to the first matching result. Reproduction steps. 264 (3840x2160) 30 fps video to HD H. The first sequence is Jockey, which features slow, local, and global motion. I am also able to transcode using the cpu using CUVID, which is also called NVDEC by NVIDIA now, can be used for decoding on Windows and Linux. In fact, they'll throw warnings at you if the thread count exceeds 32. We try to convert a 4K H. 265), VP8, VP9, MPEG-1, MPEG-2, MPEG-4 and VC-1. Decode as CUDA frames¶ Feb 24, 2022 · I recall a while back someone told me to ONLY enable CUVID, and I have started to see HDR transcode issues (skipping etc). This note was removed in the SDK 9. Mar 28, 2023 · I also tried using CUVID to decode a-3. If your model name is on the first set of tables and lists "YES" under the H. The argument position of threads is important. 264/AVCHD H. La clave de ellos se encuentra tanto en el NVDEC y el NVENC, dos unidades dentro de sus GPU que se encargan de las tareas de reproducción de vídeo. 265 (HEVC). ts) and soft decoding to output a complete 471 frames. Mar 12, 2022 · I will check again but I don’t remember having any issues using older versions of FFMpeg with video_codec;h264_cuvid for streaming from RTSP as long as they were compiled with NVDEC support. Apr 30, 2019 · A note to remember, is that neither one is native cuda decoding. … Thanks for the update, helps a lot! :) I have two questions left: Is it correct that the GeForce RTX 2080 and RTX 2070 are both based on TU104? The Turing white paper states that the RTX 2070 is based on the TU106. The full set of codecs being available only on Pascal hardware, which adds VP9 Nov 16, 2018 · In order to prefer usage of -hwaccel nvdec vs -hwaccel cuvid we have to make used surfaces configurable and make memory allocation similar to -hwaccel cuvid, and of course the issue with -bf 3 on ffmpeg-git and ffmpeg-4. 2. The second commit is cuvid specific. . Pass -threads 1 to ffmpeg before input. Refs #13357 Oct 26, 2021 · 1:N HWACCEL Transcode with Scaling. ib gi xp em fe og kj ya db ea