Glossary¶
The oneVPL API and documentation uses a standard set of acronyms and terms. This section describes these conventions.
Acronyms and Terms¶
- AVC¶
Advanced video codec (same as H.264 and MPEG-4, part 10).
- BRC¶
Bit rate control.
- CQP¶
Constant quantization parameter.
- DRM¶
Digital rights management.
- DXVA2¶
Microsoft DirectX* Video Acceleration standard 2.0.
- GOP¶
Group of pictures. In video coding, a group of frames in a specific order. In the H.264 standard, a group of I-frames, B-frames and P-frames.
- GPB¶
Generalized P/B picture. B-picture, containing only forward references in both L0 and L1.
- H.264¶
Video coding standard. See ISO*/IEC* 14496-10 and ITU-T* H.264, MPEG-4 Part 10, Advanced Video Coding, May 2005.
- HDR¶
High dynamic range.
- HRD¶
Hypothetical reference decoder, a term used in the H.264 specification.
- IDR¶
Instantaneous decoding fresh picture, a term used in the H.264 specification.
- LA¶
Look ahead. Special encoding mode where encoder performs pre-analysis of several frames before actual encoding starts.
- MCTF¶
Motion compensated temporal filter. Special type of noise reduction filter which utilizes motion to improve efficiency of video denoising.
- NAL¶
Network abstraction layer.
- PPS¶
Picture parameter set.
- QP¶
Quantization parameter.
- SEI¶
Supplemental enhancement information.
- SPS¶
Sequence parameter set.
- VA API¶
Video acceleration API.
- VBR¶
Variable bit rate.
- VBV¶
Video buffering verifier.
- Video memory¶
Memory used by a hardware acceleration device, also known as GPU, to hold frame and other types of video data.
- VUI¶
Video usability information.
Video Formats¶
- MPEG¶
Moving Picture Experts Group video file.
- MPEG-2¶
Moving Picture Experts Group video file. See ISO/IEC 13818-2 and ITU-T H.262, MPEG-2 Part 2, Information Technology- Generic Coding of Moving Pictures and Associate Audio Information: Video, 2000.
- NV12¶
YUV 4:2:0 video format, 12 bits per pixel.
- NV16¶
YUV 4:2:2 video format, 16 bits per pixel.
- P010¶
YUV 4:2:0 video format, extends NV12, 10 bits per pixel.
- P210¶
YUV 4:2:2 video format, 10 bits per pixel.
- UYVY¶
YUV 4:2:2 video format, 16 bits per pixel.
- VC-1¶
Video coding format. See SMPTE* 421M, SMPTE Standard for Television: VC-1 Compressed Video Bitstream Format and Decoding Process, August 2005.
Color Formats¶
- I010¶
Color format for raw video frames, extends IYUV/I420 for 10 bit.
- IYUV¶
A color format for raw video frames, also known as I420.
- RGB32¶
Thirty-two-bit RGB color format.
- RGB4¶
Thirty-two-bit RGB color format. Also known as RGB32.
- YUY2¶
A color format for raw video frames.
- YV12¶
A color format for raw video frames, similar to IYUV with U and V reversed.