structtheora__comment.tex

mediastreamer2是开源的网络传输媒体流的库

\section{theora\_\-comment Struct Reference}
\label{structtheora__comment}\index{theora_comment@{theora\_\-comment}}
Comment header metadata.  


{\tt \#include $<$theora.h$>$}

\subsection*{Data Fields}
\begin{CompactItemize}
\item 
char $\ast$$\ast$ {\bf user\_\-comments}\label{structtheora__comment_5cf2d0a7ac70e6f5fa286da7a3c2edef}

\begin{CompactList}\small\item\em An array of comment string vectors. \item\end{CompactList}\item 
int $\ast$ {\bf comment\_\-lengths}\label{structtheora__comment_3ae630a111e08d268bd9455089e2d549}

\begin{CompactList}\small\item\em An array of corresponding string vector lengths in bytes. \item\end{CompactList}\item 
int {\bf comments}\label{structtheora__comment_72742a6f74e87e4363d5f11c42837b97}

\begin{CompactList}\small\item\em The total number of comment string vectors. \item\end{CompactList}\item 
char $\ast$ {\bf vendor}\label{structtheora__comment_3f0da11f1a775c63109f9c0c2fbb5fc5}

\begin{CompactList}\small\item\em The vendor string identifying the encoder, null terminated. \item\end{CompactList}\end{CompactItemize}


\subsection{Detailed Description}
Comment header metadata. 

This structure holds the in-stream metadata corresponding to the 'comment' header packet.

Meta data is stored as a series of (tag, value) pairs, in length-encoded string vectors. The first occurence of the '=' character delimits the tag and value. A particular tag may occur more than once. The character set encoding for the strings is always utf-8, but the tag names are limited to case-insensitive ascii. See the spec for details.

In filling in this structure, {\bf theora\_\-decode\_\-header()}{\rm (p.\,\pageref{theora_8h_41a60c67649c41ae88278d777f89ee3f})} will null-terminate the user\_\-comment strings for safety. However, the bitstream format itself treats them as 8-bit clean, and so the length array should be treated as authoritative for their length. 



The documentation for this struct was generated from the following file:\begin{CompactItemize}
\item 
{\bf theora.h}\end{CompactItemize}