FlacEncoder.h

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/*************************************************************************
          FlacEncoder.h  -  encoder 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_ENCODER_H
#define FLAC_ENCODER_H

#include "config.h"

#include <QList>
#include <QVector>

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

#include <vorbis/vorbisenc.h>

#include "libkwave/Encoder.h"
#include "libkwave/VorbisCommentMap.h"

class QIODevice;
class QWidget;

namespace Kwave
{

    class MultiTrackReader;

    class FlacEncoder: public Kwave::Encoder,
                       protected FLAC::Encoder::Stream
    {
    public:
        FlacEncoder();

        virtual ~FlacEncoder() Q_DECL_OVERRIDE;

        virtual Kwave::Encoder *instance() Q_DECL_OVERRIDE;

        virtual bool encode(QWidget *widget, Kwave::MultiTrackReader &src,
                            QIODevice &dst,
                            const Kwave::MetaDataList &meta_data)
            Q_DECL_OVERRIDE;

        virtual QList<Kwave::FileProperty> supportedProperties()
            Q_DECL_OVERRIDE;

    protected:

        virtual ::FLAC__StreamEncoderWriteStatus write_callback(
            const FLAC__byte buffer[], size_t bytes,
            unsigned samples, unsigned current_frame) Q_DECL_OVERRIDE;

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

        virtual void encodeMetaData(const Kwave::FileInfo &info,
            QVector<FLAC__StreamMetadata *> &flac_metadata);

    protected:

        class VorbisCommentContainer
        {
        public:
            VorbisCommentContainer();

            virtual ~VorbisCommentContainer();

            void add(const QString &tag, const QString &value);

            FLAC__StreamMetadata *data();

        private:
            FLAC__StreamMetadata *m_vc;
        };

    private:

        Kwave::VorbisCommentMap m_vorbis_comment_map;

        QIODevice *m_dst;

    };
}

#endif /* FLAC_ENCODER_H */

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