our current experimental Neutrino branch

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@27 e54a6e83-5905-42d5-8d5c-058d10e6a962

src/driver/audiodec/basedec.h

@@ -0,0 +1,63 @@
+/*
+	Neutrino-GUI  -   DBoxII-Project
+
+	Copyright (C) 2004 Zwen
+	
+	Decoder base class
+	Homepage: http://www.dbox2.info/
+
+	Kommentar:
+
+	License: GPL
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#ifndef __BASE_DEC__
+#define __BASE_DEC__
+
+#include <stdio.h>
+#include <driver/audiofile.h>
+#include <driver/audiometadata.h>
+
+class CBaseDec
+{
+public:
+	enum State {STOP = 0, STOP_REQ, PLAY, PAUSE, FF, REV};
+	enum RetCode { OK = 0, READ_ERR, WRITE_ERR, DSPSET_ERR, DATA_ERR, INTERNAL_ERR };
+
+	// the follwing two methods have to be implemented for new decoders
+	//@param secondsToSkip: a value of 0 indicates that normal FF/REV operation was requested
+	//                      a value  > 0 indicates that *one* jump forwards (FF) or backwards (REV) was requested
+	virtual RetCode Decoder(FILE *, const int, State* const, CAudioMetaData*, time_t* const, unsigned int* const)=0;
+	virtual bool GetMetaData(FILE *in, const bool nice, CAudioMetaData* m)=0;
+	
+	static RetCode DecoderBase(CAudiofile* const in, const int OutputFd,
+							   State* const state, time_t* const t,
+							   unsigned int* const secondsToSkip);
+	static bool GetMetaDataBase(CAudiofile* const in, const bool nice);
+	static void Init();
+
+	CBaseDec(){};
+	static bool SetDSP(int soundfd, int fmt, unsigned int dsp_speed, unsigned int channels);
+private:
+	static bool avs_mute(bool mute);
+	unsigned static int mSamplerate;
+};
+
+
+#endif
+