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diff --git a/vdr_decoder_ogg.h b/vdr_decoder_ogg.h
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+/*! \file vdr_decoder_ogg.h
+ * \ingroup vdr
+ *
+ * The file contains a decoder which is used by the player to decode ogg vorbis audio files.
+ *
+ * Adapted from
+ * MP3/MPlayer plugin to VDR (C++)
+ * (C) 2001-2003 Stefan Huelswitt <huels@iname.com>
+ */
+
+#ifndef ___DECODER_OGG_H
+#define ___DECODER_OGG_H
+
+#define DEC_OGG DEC_ID('O','G','G',' ')
+#define DEC_OGG_STR "OGG"
+
+#ifdef HAVE_VORBISFILE
+
+#include "vdr_decoder.h"
+
+// ----------------------------------------------------------------
+
+class mgOggFile;
+
+class mgOggDecoder : public mgDecoder
+{
+ private:
+
+ mgOggFile *m_file;
+ struct mgDecode m_ds;
+ struct mad_pcm *m_pcm;
+ unsigned long long m_index;
+
+ //
+ void init(void);
+ bool clean(void);
+ struct mgDecode *done( eDecodeStatus status );
+
+ public:
+
+ mgOggDecoder( mgContentItem *item );
+ ~mgOggDecoder();
+
+ virtual mgPlayInfo *playInfo();
+
+ virtual bool valid();
+
+ virtual bool start();
+
+ virtual bool stop();
+
+ virtual bool skip(int Seconds, int Avail, int Rate);
+
+ virtual struct mgDecode *decode(void);
+};
+
+// ----------------------------------------------------------------
+
+#endif //HAVE_VORBISFILE
+#endif //___DECODER_OGG_H