--- /dev/null
+/***************************************************************************
+ 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 *
+ * *
+ * Alternatively, this file is available under the Mozilla Public *
+ * License Version 1.1. You may obtain a copy of the License at *
+ * http://www.mozilla.org/MPL/ *
+ ***************************************************************************/
+
+#ifndef TAGLIB_XINGHEADER_H
+#define TAGLIB_XINGHEADER_H
+
+#include "mpegheader.h"
+#include "taglib_export.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 TAGLIB_EXPORT 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 valid
+ * 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
+ */
+ // BIC: rename to offset()
+ static int xingHeaderOffset(TagLib::MPEG::Header::Version v,
+ TagLib::MPEG::Header::ChannelMode c);
+
+ private:
+ XingHeader(const XingHeader &);
+ XingHeader &operator=(const XingHeader &);
+
+ void parse(const ByteVector &data);
+
+ class XingHeaderPrivate;
+ XingHeaderPrivate *d;
+ };
+ }
+}
+
+#endif