The uncompressed data chunk at the start of each frame and the first part of the first data partition contains information pertaining to the frame as a whole. We list the fields in the order of occurrence, giving details for some of the fi…

At the lowest level, VP8’s compressed data is simply a sequence of probabilistically-encoded bools. Most of this data is composed of (slightly) larger semantic units fashioned from bools, which we describe here. 最低レベルルにおいて，VP8の…

As discussed in the overview above, essentially the entire VP8 data stream is encoded using a boolean entropy coder. これまで概要で検討してきたように，本質的に全てのVP8データストリームは2値エントロピー符号化器を用いて符号化されている．An u…

As the intent of this document, together with the reference decoder source code, is to specify a platformindependent procedure for the decoding and reconstruction of a VP8 video stream, many (small) algorithms must be described exactly. 参…

A VP8 decoder needs to maintain four YUV frame buffers whose resolutions are at least equal to that of the encoded image. These buffers hold the current frame being reconstructed, the immediately previous reconstructed frame, the most rece…

The input to a VP8 decoder is a sequence of compressed frames whose order matches their order in time. Issues such as the duration of frames, the corresponding audio, and synchronization are generally provided by the playback environment a…

There are only two types of frames in VP8. VP8にフレームの種類は二つしかない． Intraframes (also called key frames and, in MPEG terminology, I-frames) are decoded without reference to any other frame in a sequence, that is, the decompresso…

VP8 works exclusively with an 8-bit YUV 4:2:0 image format. In this format, each 8-bit pixel in the two chroma planes (U and V) corresponds positionally to a 2x2 block of 8-bit luma pixels in the Y plane; coordinates of the upper left corn…

This document describes the VP8 compressed video data format created by Google On2, together with a discussion of the decoding procedure for this format. It is intended to be used in conjunction with and as a guide to the reference decoder…

ざっくり翻訳してみたので晒してみる．こんな変な日本語読むぐらいなら，素直に英語のまま理解した方が早そうです……．でもまぁ何かの助けになれば． 仕様書よりも実装が正しいらしいｗ 古いMPEGとの違いは，DCT処理における厳密性で，いかなるドリフトも許容…