| 翻訳と辞書 |
VP3
On2 TrueMotion VP3 is a (royalty-free) lossy video compression format and video codec. It is an incarnation of the TrueMotion video codec, a series of video codecs developed by On2 Technologies.
There is no formal specification for the VP3 bitstream format beyond the VP3 source code published by On2 Technologies. In 2003, Mike Melanson created an incomplete description of the VP3 bitstream format and decoding process at a higher level than source code, with some help from On2 and the Xiph.Org Foundation.
==History==
VP3 was originally a proprietary and patented video codec.
On2 TrueMotion VP3.1 was introduced in May 2000 followed three months later by the VP3.2 release. Later that year, On2 announced VP3 plugins for QuickTime and RealPlayer. In May 2001, On2 released the beta version of its new VP4 proprietary codec. In June 2001, On2 also released a VP3 codec implementation for Microsoft Windows where the encoder was priced at $39.95 for personal use, and $2,995 for limited commercial use.〔The Free Library (2001-06-27) (VP3 for Windows Now Available for License At On2.com. ), Retrieved on 2009-08-18〕 In August 2001, On2 Technologies announced that they would be releasing an open source version of their VP3.2 video compression algorithm.〔On2 (2001-08-07) (On2 Technologies to Open Source VP3.2 Video Compression Technology ), Retrieved on 2009-08-16〕〔CNET News (2001-08-07) (On2's video codec to go open-source ), Retrieved on 2009-08-16〕 In September 2001 they published the source code and open source license for VP3.2 video compression algorithm at www.vp3.com.〔StreamingMedia.com (2001-09-07) (On2 Offers Up VP3.2 Source Code ), Retrieved on 2009-08-16〕〔On2 (2001-09-07) (On2 Technologies Makes Video Compression Technology Available to Open-Source Community ), Retrieved on 2009-08-16〕〔Linux.com (2001-09-06) (On2 Technologies Open-Sources VP3 video compression code ), Retrieved on 2009-08-16〕 The VP3.2 Public License 0.1 granted the right to modify the source code only if the resulting larger work continued to support playback of VP3.2 data.〔〔〔lists.xiph.org (2001-09-09) (Vorbis mailing list - VP3.2 video codec open sourced ), Retrieved on 2009-08-16〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「VP3」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|