/**
 * Copyright (c) 2006-2020 LOVE Development Team
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 **/

#ifndef LOVE_SOUND_LULLABY_VORBIS_DECODER_H
#define LOVE_SOUND_LULLABY_VORBIS_DECODER_H

// LOVE
#include "common/Data.h"
#include "common/int.h"
#include "sound/Decoder.h"

// vorbis
#define OV_EXCLUDE_STATIC_CALLBACKS
#include <vorbis/codec.h>
#include <vorbis/vorbisfile.h>

namespace love
{
namespace sound
{
namespace lullaby
{

// Struct for handling data
struct SOggFile
{
	const char *dataPtr;	// Pointer to the data in memory
	int64 dataSize;	// Size of the data
	int64 dataRead;	// How much we've read so far
};

class VorbisDecoder : public Decoder
{
public:

	VorbisDecoder(Data *data, int bufferSize);
	virtual ~VorbisDecoder();

	static bool accepts(const std::string &ext);

	love::sound::Decoder *clone();
	int decode();
	bool seek(double s);
	bool rewind();
	bool isSeekable();
	int getChannelCount() const;
	int getBitDepth() const;
	int getSampleRate() const;
	double getDuration();

private:
	SOggFile oggFile;				// (see struct)
	ov_callbacks vorbisCallbacks;	// Callbacks used to read the file from mem
	OggVorbis_File handle;			// Handle to the file
	vorbis_info *vorbisInfo;		// Info
	vorbis_comment *vorbisComment;	// Comments
	int endian;						// Endianness
	double duration;
}; // VorbisDecoder

} // lullaby
} // sound
} // love

#endif // LOVE_SOUND_LULLABY_VORBIS_DECODER_H
