A/V Codec is the setting dialog of Video Decoder and Video Encoder for different sources (H.264/VC1/Mpeg2).
DVDFab adopts NVIDIA CUDA technology which can largely improve the performance of app’s
computation and video encoding/decoding, in particular for HD video’s processing. For happier user
experience of customers, DVDFab keeps improving and has been updated with the newest NVIDIA
CUDA. Now, with a computer running on CUDA-enabled GPU, you can use DVDFab products to
copy/rip your DVD/Blu-ray movies or convert videos in a speed much faster than ever before.
If you don't want to enable GPU decoding/encoding, please just tick the "Disable all GPU codecs for decoding and encoding" check box.
You can choose the best decoder to save the time of ripping.
For H.264 video stream, there are four options: Software, DXVA, CUDA and CoreAVC.
For VC1 video stream, there are Software, DXVA and CUDA.
For Mpeg2 video stream, only software can be set.
● CoreAVC is a proprietary codec for decoding the H.264/MPEG-4 AVC (Advanced Video Coding)video
● CUDA is NVIDIA's parallel computing architecture that enables dramatic increases in computing
performance by harnessing the power of the GPU (graphics processing unit). Only NVIDIA's graphics card support this setting.
● DirectX Video Acceleration (DXVA) is a Microsoft API specification for the Microsoft Windows and
Xbox 360 platforms that allows video decoding to be hardware accelerated. The pipeline allows certain
CPU - intensive operations such as iDCT, motion compensation and deinterlacing to be offloaded to
the GPU. Only ATI's graphics card support this setting.
●Currently the ATI Stream support is limited to H.264 and VC1 video decoding. It's the problem of AMD driver, and we need to wait for driver updates to support more features like MPEG2 video decoding and H.264 encoding. Also the decoding speed of ATI Stream is not very faster than DXVA, but it should be more stable than DXVA.
You may need Visit http://sites.amd.com/US/GAME/DOWNLOADS/Pages/downloads.aspx to download both "Catalyst Software Suite" and "AMD Media Codec Package" (Optional Downloads).
It is a program that uses predefined algorithms to encode, or compress audio or video data for storage or transmission use. Two options for H.264 video stream can be set: Software and Software+CUDA.
The codec infomation provide the info of Graphics Chipset and the info of Supported Video Codecs. You can visually check which video codec format your graphics card can not support as illustrated bellow.