#QUICKSYNC VS DXVA2 SOFTWARE#

It looks for any hardware that tells it that it can fill a role and then will utilize that hardware to do a job when software asks for the job to be done.

DirectX in general is a system for interfacing software and diverse graphics hardware. In these cases, the functionality is made available to software, but it is up to software to utilize the processing capabilities of the hardware and the exact nature of the acceleration will depend on which algorithms and processing they choose to offload to the hardware.Īnother option, as far as APIs are concerned, is something like DXVA, which strives to unify multiple technologies. Depending on the hardware they may either offer a wider array of specialized functionality or simply a general purpose parallel processor that works better for video purposes. Other hardware, such as modern GPUs (CUDA or OpenCL based, I think ATI has a term too, but can't remember it) and video editing or mixing acceleration cards, such as Black Magic's ATEMs or Matrox's older RT line of real time editing cards, are designed to provide more general purpose functionality. There are other rolls other than encoding that could be filled by a purpose driven card, but encoding is certainly one of the most common. This is similar to any other dedicated encoder, such as the integrated encoder used for NVidia Shadowplay or the dedicated encoders on devices like the Matrox MXO2 or BlackMagic Intensity. Something like Intel QuickSync is a specific hardware encoder and has limited functionality because it can only serve it's purpose driven role. The exact nature of what each type of acceleration does depends entirely on the software you are using and the hardware you are using. They are all forms of hardware acceleration, which broadly, just means that specialized hardware is doing things faster than the basic CPU normally could. Is a closed API developed by NVIDIA that not only gives direct access to the the GPU's virtual instruction set, but also allows for data to be retrieved from the video card so that additional processing can be performed.Compute Unified Device Architecture (CUDA).This type of hardware acceleration improves video encoding/decoding performance by routing 'work' to the CPU - specifically a dedicated processor die that is responsible for performing video encoding/decoding operations.

This type of hardware acceleration improves video encoding/decoding performance by routing 'work' to the GPU (integrated or discrete).what is the relationship between hardware acceleration and these technologies?įor example, can you enable DXVA to leverage GPU based hardware performance AND enable QuickSync to leverage CPU based hardware acceleration? Freemake allows you to enable: CUDA and/or DXVA.VLC Player allows you to enable: QuickSync and/or DXVA.VLC Player, MPC-HC, etc.) are highly configurable.

Quicksync vs dxva2