AVC-Intra

AVC-Intra

(Advanced Video Coding-Intra) An HD video format in professional Panasonic camcorders that employs the high-level modes of the H.264/AVC standard. Introduced in 2007 for electronic news gathering (ENG), AVC-Intra uses intraframe coding for high-quality editing in contrast to AVCHD, an H.264 interframe format (see AVCHD and interframe coding).

AVC-Intra records 720p, 1080i and 1080p resolutions with greater accuracy by using 10 bits per pixel for compression. Bit rates are 50 and 100 Mbps. AVC-Intra 50 scales horizontal resolution from 1920 to 1440 pixels and from 1280 to 960 and uses 4:2:0 color sampling. AVC-Intra 100 improves colors with 4:2:2.

AVC-Ultra
In 2012, Panasonic debuted its highest-quality video format. AVC-Ultra includes 4:4:4 color sampling, 12-bit pixel compression and 440 Mbps. It also offers a 25 Mbps "Proxy AV" mode for fast previewing. See H.264, HD formats, 10-bit pixel compression and chroma subsampling.
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Additionally, its new format supports VAST, P2 package, encrypted DCP content, AVC-Intra, WebM and Vorbis, and more.
Currently, both mxfSPEEDRAIL and SKYWATCH systems are supporting the VariCam 4K workflow, including all the AVC-Intra 4K formats and Memory Card Drive, AU-XPD1 and AU-XPD3.
This, says Primestream, give professionals the ability to work with leading broadcast file formats such as ProRes, XDCAM, DNxHD and AVC-Intra while leveraging Atom-based file formats such as H.264 for creating proxy assets and the delivery of Web content inside both Fork and Xchange platforms.
Acquisition interfaces for AVCHD, AVC-Intra, FireWire, Panasonic P2, and Sony XDCAM are provided as well as support for AJA and Blackmagic Design video I/O interfaces.
AVC-Intra Class 300 and Class 480 use a lot of bandwidth, as does DNxHD/ HR.
With that, picture quality and recorded data rate can be selected from AVC-Intra or AVC-LongG according to the application, and also the low-rate AVC-Proxy file recorded allows support for network-based operation and off-line editing.
In addition to the company's DVCPRO HD standards that have already been adopted as the video recording format, the adoption of the file-based work flow using the high quality AVC-Intra standards has been decided.
"In the HD age, Panasonic will provide tapeless and High-Definition video equipment during the Vancouver 2010 Olympic Winter Games, including the P2 HD series camcorders and related equipment incorporating the latest video codec 'AVC-Intra,' in addition to the proven 'DVCPRO HD' format.
AG-HPG20 P2New to Panasonic's media line is the solid-state AG-HPG20 P2 Portable recorder/player with AVC-Intra capability.
The solution has been designed to ingest all the broadcasters input formats such as Panasonic P2, Sony XDCAM, Canon and GoPro, transcoding them into AVC-Intra 100 format - the standard HD format at HR - and transfers the assets into the production environment.