FlacDecoder.h

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/*************************************************************************
          FlacDecoder.h  -  decoder for FLAC data
                             -------------------
    begin                : Tue Feb 28 2004
    copyright            : (C) 2004 by Thomas Eschenbacher
    email                : Thomas.Eschenbacher@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef FLAC_DECODER_H
#define FLAC_DECODER_H

#include "config.h"

#include <QList>
#include <QMap>
#include <QObject>
#include <QString>
#include <QStringList>

#include <FLAC++/decoder.h>
#include <FLAC++/metadata.h>
#include <FLAC/format.h>

#include "libkwave/Decoder.h"
#include "libkwave/FileInfo.h"
#include "libkwave/VorbisCommentMap.h"

class QWidget;
class QIODevice;

namespace Kwave
{
    class FlacDecoder: public Kwave::Decoder,
                       protected FLAC::Decoder::Stream
    {
    public:
        FlacDecoder();

        virtual ~FlacDecoder() Q_DECL_OVERRIDE;

        virtual Kwave::Decoder *instance() Q_DECL_OVERRIDE;

        virtual bool open(QWidget *widget, QIODevice &source) Q_DECL_OVERRIDE;

        virtual bool decode(QWidget *widget, Kwave::MultiWriter &dst)
            Q_DECL_OVERRIDE;

        virtual void close() Q_DECL_OVERRIDE;

    protected:

        void parseStreamInfo(const FLAC::Metadata::StreamInfo &stream_info);

        void parseVorbisComments(
            const FLAC::Metadata::VorbisComment &vorbis_comments);

        virtual ::FLAC__StreamDecoderReadStatus read_callback(
            FLAC__byte buffer[], size_t *bytes) Q_DECL_OVERRIDE;

        virtual ::FLAC__StreamDecoderWriteStatus write_callback(
            const ::FLAC__Frame *frame,
            const FLAC__int32 *const buffer[]) Q_DECL_OVERRIDE;

        virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata)
            Q_DECL_OVERRIDE;

        virtual void error_callback(::FLAC__StreamDecoderErrorStatus status)
            Q_DECL_OVERRIDE;

    private:

        QIODevice *m_source;

        Kwave::MultiWriter *m_dest;

        Kwave::VorbisCommentMap m_vorbis_comment_map;

    };
}

#endif /* FLAC_DECODER_H */

//***************************************************************************
//***************************************************************************