Download directx video acceleration specification for h. However i have no idea why it pressures nvidia gpu while encoding notice the 35% load when using intel quick sync. Not only can dxva2 be used for playback acceleration, it can be used to help with parts of the video recording process. In todays article i want to talk about the different encoding options that are currently available to you for streaming or recording video files. Gpu transcoding intel quicksync and nvidia nvenc page. The different encoders allow you to use different parts of your hardwaresystem to do the hard work and encode your video file. Page 58 of 73 gpu transcoding intel quicksync and nvidia nvenc posted in general discussion. Directx video acceleration dxva is a microsoft api specification for the microsoft windows and xbox 360 platforms that allows video decoding to be hardwareaccelerated. Now, we have almost finished the clarification about what is intel quick sync video. Lav filters megamix download the 64bit version or 32bit version. The intel hd gpu seems happy to rest at 60% load whatever the settings. Handbrake, needless to explain further, is the world famous open source for you to rip dvd as well as convert video on both mac and windows operating system for 100% free of charge. Here i show you what intel quick sync can do to convert a 1080p video. Intel quick sync performs way better than nvidia nvenc qualitywise, and ease off the same amount of cpu load.
For example, a software decoder can offload the inverse discrete cosine transform idct to the gpu. As you can see here, if you compare dxva2 versus cuvid, theres no question that cuvid outperforms dxva when it comes to quality and performance. What is the relationship between hardware acceleration and. A free decoder that utilizes the intel quicksync technology.
Dxva2, also known as directx video acceleration allows your hardware to help handle parts of the video decoding process. Directx video acceleration, or dxva, is microsofts technology for the windows vista, 7, 8, and later oss, which allows video decoding to be gpu accelerated. Handbrake quick sync to accelerate video conversion speed. The oddman out in the power numbers is the interlaced vc1 clip, where quicksync decoding is. Windows 7, 8 and 10 users you can activate the intel quick sync video by connecting a video cable to the monitors.
Download software divx pro technologies volume licensing. Once you click on the download button, you will be prompted to select the files you need. Mpchc video decoder comparison mpchc video decoders. Several years ago i would have chosen dxva like i always did, but surely nvidia has improved its playback quality when accelerating stuff releaving hevc acceleration. 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. Intel quicksync decoder hw accelerated ffdshow decoder with. Unlike video encoding on a cpu or a generalpurpose gpu, quick sync is a. Quicksync is a small, simple application specially designed to help you synchronize folders and files with the utmost ease. Divx software incorporates directx video acceleration dxva and intel quick sync video to. Intel quick sync video encoder hevc vs h264 bandicam. Manycam 6 has widened the range of supported encoding options and now allows utilizing quick sync along with the. Whether it is dxva2 native or quick sync, i can allocate a image buffer. Enable quick sync on handbrake to accelerate conversion speed.
That works, but it introduces burst of severe pixelation. The limitation that the video decoder must be connected directly to the video renderer only applies the the native variant of dxva. Intel quick sync video is intels brand for their dedicated video encoding and decoding hardware core. Decoding and rendering benchmarks intels haswell an. If you want to transcode using hardware then you use this method. A benchmark from toms hardware showed in 2011 that quick sync.
There are multiple files available for this download. App versus cuda versus quick sync next page transcoding quality. Mpchc using no video decoder i took another screenshot using the none option for the video decoder, just to see what would happen. This is a solid, basic start thatll generally look good. According to lav filters author, cuvid and intel quicksync are outdated, dxva copyback direct mode beats them both in performance. Hello, i didnt know where to post this so i thought the feedback section was as good as any. You can also download the installation binary media server studio from. If your monitors resolution is 1080p or higher, use downscaling to bring the streamed resolution to 720p540p. The intel and handbrake teams put our heads together to identify the steps needed to add intel quick sync video intel hd graphics acceleration to the project. Intel quick sync video, the dedicated media processing capabilities of intel. Quick syncs performance didnt move all users to sandyivy bridge based video transcoding. Intel quick sync video is the marketing name for a set of hardware. Dxva2 dxva2 video rendering overview and explanation. Intel quick sync video is intels brand for its dedicated video encoding and decoding hardware.
Configuring potplayer for gpuaccelerated video playback with. Intel quick sync video is intels brand for its dedicated video encoding and decoding hardware core. 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. Its also possible a vendor may put functionality specifically for dxva calls. Using native dxva decoding, the frames are directly passed to the renderer without the copyback step. But i found out something about the lav with intel quick sync where i dont. It may be integrated in the driver and may make lower use of the hardware as well. Try dvdfab and download streaming video, copy, convert or make. Moscow state universitys msu 2019 codec performance comparison proved mainconcepts hevc encoding superiority, showing 20% greater bitrate efficiency than open source for fixed resolution video encoding. Intel quick sync video 1 uses the dedicated media processing capabilities of.
Im not certain as i dont know if dxva puts any specific requirements that cant be implemented directly in terms of any particular existing hardware api. Abstracts the hassle of hw accelerated decoding in intels 2nd generation core i3i5i7pentiumceleron sandybridge or newer intel cpugpu using the intel quicksync technology. While this method is fine dual core cpu is only about 1015% utilized, the actual picture quality using the software render vs. Here is the very place where you can get a clear understanding on the difference among these types of hardware acceleration techs. One of its biggest limitations is the lack of good software support for the standard.
After days of experimentation, i can now say that the problem goes away when i use software as the render method, and remove hardware acceleration. Video acceleration nativerenderless or intel quicksync decoder or. What if you wonder the relationship among intel quick sync, nvidia, amd and dxva. Be able to use dxva renderless method even with madvr. Software codecs and software video processors can use dxva to offload certain cpuintensive operations to the gpu. Steam remote play a way for people with good home networks to seamlessly play their steam games between two computers running steam. Since i changed a client from nvidia to intel hd graphics 3000 im looking for the best codec to replace lav cuvid i was using. Can be used by any hardware that supports dxva2 intel might have some issues with vc1 video. Spend clicks versus hours to edit, convert, and share your video, at home and onlinewith intel quick sync video, your video is waiting for you, not the other way around. Do 720p 1080 is often a waste at 2500kbs using x264 and youll probably be fine. How to enable intel quick sync video encoder manycam.
1301 843 601 1259 247 1484 739 536 254 1068 1471 1564 1009 1412 597 71 140 1432 1572 1518 138 216 496 1211 61 3 979 181 43 1100 194 26 202 393 1385 1347 1181