Traverso/cvs/traverso/src/audiofileio/encode/WPAudioWriter.h

/*
Copyright (C) 2007 Ben Levitt 

This file is part of Traverso

Traverso 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.

*/

#ifndef WPAUDIOWRITER_H
#define WPAUDIOWRITER_H

#include "AbstractAudioWriter.h"

#include "defines.h"
#include "wavpack/wavpack.h"

class QString;

class WPAudioWriter : public AbstractAudioWriter
{
        
public:
        WPAudioWriter();
        ~WPAudioWriter();
        
        bool set_format_attribute(const QString& key, const QString& value);
        const char* get_extension();
        
protected:
        bool open_private();
        nframes_t write_private(void* buffer, nframes_t frameCount);
        bool close_private();
        int write_to_file(void *lpBuffer, uint32_t nNumberOfBytesToWrite, uint32_t *lpNumberOfBytesWritten);
        bool rewrite_first_block();
        
        static int write_block(void *id, void *data, int32_t length);
        
        WavpackConfig   m_config;
        WavpackContext* m_wp;
        FILE*           m_file;
        char*           m_firstBlock;
        int32_t         m_firstBlockSize;
        int             m_configFlags;
        int32_t*        m_tmp_buffer;
        nframes_t       m_tmpBufferSize;
};

#endif

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