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include/modules/audio_stream_ogg/audio_stream_ogg.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__AUDIOOGGSTREAM__
+#define	__AUDIOOGGSTREAM__
+
+
+		#include "filesystem/io_handle.h"
+	#define	STB_VORBIS_HEADER_ONLY
+		#include "stb_vorbis.c"
+	#undef	STB_VORBIS_HEADER_ONLY
+		#include "audio/stream_interface.h"
+		#include "memory/ring_buffer.h"
+		#include "memory/nauto_ptr.h"
+
+
+namespace GS {
+
+/*
+	@short	OGG audio stream.
+	@author	Emmanuel Julien (ejulien@nworks.fr)
+*/
+class	AudioStreamOGG : public IAudioStream
+{
+protected:
+
+		AutoPtr <IO::Handle> h;
+		Array <char>	buffer;
+		size_t			byte_left;
+
+		size_t			RefillBuffer();
+		void			ConsumeBuffer(size_t);
+
+		int				seek_correction, consumed, err;
+
+		stb_vorbis_info	vorbis_info;
+		stb_vorbis		*vf;
+
+public:
+
+		/// Return the stream data format (eg. "OGG").
+		const char		*GetFormat() { return "OGG"; }
+
+		bool			Seek(int t_ms = 0);
+		bool			IsEOF() const;
+
+		size_t			GetPCM(void *);
+		size_t			GetPCMBufferSize() const;
+
+		bool			Open(const char *uri);
+		void			Close();
+
+		AudioStreamOGG();
+		~AudioStreamOGG();
+};
+
+} // GS
+
+
+#endif	// __AUDIOOGGSTREAM__