AudioDecoderNellymoser.h

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// AudioDecoderNellymoser.h: Nellymoser decoding
// 
//   Copyright (C) 2007, 2008 Free Software Foundation, Inc.
// 
// 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 3 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

// $Id: AudioDecoderNellymoser_8h-source.html,v 1.1 2008/03/07 02:36:16 bjacques Exp $

// This file incorporates work covered by the following copyright and permission
// notice:

/*
 * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5,
 *                    539459aeb7d425140b62a3ec7dbf6dc8e408a306, and
 *                    520e17cd55896441042b14df2566a6eb610ed444
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __AUDIODECODERNELLYMOSER_H__
#define __AUDIODECODERNELLYMOSER_H__

#include "log.h"
#include "AudioDecoder.h"

#define NELLY_BLOCK_LEN 64
#define NELLY_HEADER_BITS 116
#define NELLY_DETAIL_BITS 198
#define NELLY_BUF_LEN 128
#define NELLY_FILL_LEN 124
#define NELLY_BIT_CAP 6
#define NELLY_BASE_OFF 4228
#define NELLY_BASE_SHIFT 19



typedef struct nelly_handle_struct {
        float state[64];
} nelly_handle;

namespace gnash {
namespace media {

class AudioDecoderNellymoser : public AudioDecoder {

public:
        AudioDecoderNellymoser();
        ~AudioDecoderNellymoser();

        bool setup(AudioInfo* info);
        bool setup(SoundInfo* info);

        boost::uint8_t* decode(boost::uint8_t* input, boost::uint32_t inputSize, boost::uint32_t& outputSize, boost::uint32_t& decodedBytes, bool parse);
        
        float* decode(boost::uint8_t* in_buf, boost::uint32_t inputSize, boost::uint32_t* outputSize);

private:

        // The handle used by the decoder
        nelly_handle* _nh;

        // samplerate
        boost::uint16_t _sampleRate;

        // stereo
        bool _stereo;
};
        
} // gnash.media namespace 
} // gnash namespace

#endif // __AUDIODECODERNELLYMOSER_H__
        

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