http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/taglib/xingheader.h

/*************************************************************************** copyright : (C) 2003 by Ismael Orenstein email : orenstein@kde.org ***************************************************************************/ /*************************************************************************** * This library is free software; you can redistribute it and/or modify * * it under the terms of the GNU Lesser General Public License version * * 2.1 as published by the Free Software Foundation. * * * * This library is distributed in the hope that it will be useful, but * * WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * * Lesser General Public License for more details. * * * * You should have received a copy of the GNU Lesser General Public * * License along with this library; if not, write to the Free Software * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * * USA * ***************************************************************************/ #ifndef TAGLIB_XINGHEADER_H #define TAGLIB_XINGHEADER_H #include "mpegheader.h" namespace TagLib { class ByteVector; namespace MPEG { //! An implementation of the Xing VBR headers /*! * This is a minimalistic implementation of the Xing VBR headers. Xing * headers are often added to VBR (variable bit rate) MP3 streams to make it * easy to compute the length and quality of a VBR stream. Our implementation * is only concerned with the total size of the stream (so that we can * calculate the total playing time and the average bitrate). It uses * <a href="http://home.pcisys.net/~melanson/codecs/mp3extensions.txt">this text</a> * and the XMMS sources as references. */ class XingHeader { public: /*! * Parses a Xing header based on \a data. The data must be at least 16 * bytes long (anything longer than this is discarded). */ XingHeader(const ByteVector &data); /*! * Destroy this XingHeader instance. */ virtual ~XingHeader(); /*! * Returns true if the data was parsed properly and if there is a vaild * Xing header present. */ bool isValid() const; /*! * Returns the total number of frames. */ uint totalFrames() const; /*! * Returns the total size of stream in bytes. */ uint totalSize() const; /*! * Returns the offset for the start of this Xing header, given the * version and channels of the frame */ static int xingHeaderOffset(TagLib::MPEG::Header::Version v, TagLib::MPEG::Header::ChannelMode c); private: void parse(const ByteVector &data); class XingHeaderPrivate; XingHeaderPrivate *d; }; } } #endif