vorbis_intern.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef AUDIO_VORBIS_INTERN_H
#define AUDIO_VORBIS_INTERN_H
 
#include "common/scummsys.h"
 
#ifdef USE_VORBIS
 
#include "common/ptr.h"
#include "common/stream.h"
 
#include "audio/audiostream.h"
#include "audio/timestamp.h"
 
#ifdef USE_TREMOR
#include <tremor/ivorbisfile.h>
#else
#define OV_EXCLUDE_STATIC_CALLBACKS
#include <vorbis/vorbisfile.h>
#endif
 
namespace Audio {
 
class VorbisStream : public SeekableAudioStream {
protected:
    Common::DisposablePtr<Common::SeekableReadStream> _inStream;
 
    bool _isStereo;
    int _rate;
 
    Timestamp _length;
 
    OggVorbis_File _ovFile;
 
    int16 _buffer[4096];
    const int16 *_bufferEnd;
    const int16 *_pos;
 
public:
    VorbisStream(Common::SeekableReadStream *inStream, DisposeAfterUse::Flag dispose);
    ~VorbisStream();
 
    int readBuffer(int16 *buffer, const int numSamples) override;
 
    bool endOfData() const override { return _pos >= _bufferEnd; }
    bool isStereo() const override { return _isStereo; }
    int getRate() const override { return _rate; }
 
    bool seek(const Timestamp &where) override;
    Timestamp getLength() const override { return _length; }
 
protected:
    bool refill();
};
 
} // End of namespace Audio
 
#endif // USE_VORBIS
#endif // AUDIO_VORBIS_INTERN_H