// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of the Aegisub Group nor the names of its contributors
//     may be used to endorse or promote products derived from this software
//     without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file mkv_wrap.h
/// @see mkv_wrap.cpp
/// @ingroup video_input
///

#ifndef AGI_PRE
#include <stdint.h>
#include <stdio.h>

#include <list>
#include <vector>
#endif

#include "MatroskaParser.h"

class AssFile;
namespace agi { namespace vfr { class Framerate; } }

/// DOCME
/// @class MkvStdIO
/// @brief DOCME
///
/// DOCME
class MkvStdIO : public InputStream {
public:
	MkvStdIO(wxString filename);
	~MkvStdIO() { if (fp) fclose(fp); }

	/// DOCME
	FILE *fp;

	/// DOCME
	int error;
};

/// DOCME
/// @class MkvFrame
/// @brief DOCME
///
/// DOCME
class MkvFrame {
public:

	/// DOCME
	double time;

	/// DOCME
	bool isKey;

	/// DOCME
	int64_t filePos;

	/// @brief DOCME
	///
	MkvFrame() {
		time = 0;
		isKey = false;
		filePos = -1;
	}

	/// @brief DOCME
	/// @param keyframe 
	/// @param timecode 
	/// @param _filePos 
	///
	MkvFrame(bool keyframe,double timecode,int64_t _filePos) {
		isKey = keyframe;
		time = timecode;
		filePos = _filePos;
	}
};

bool operator < (MkvFrame &t1, MkvFrame &t2);


/// DOCME
/// @class MatroskaWrapper
/// @brief DOCME
///
/// DOCME
class MatroskaWrapper {
private:

	/// DOCME
	std::vector<int> keyFrames;

	/// DOCME
	std::vector<double> timecodes;

	/// DOCME
	wxArrayInt bytePos;

public:

	/// DOCME
	MkvStdIO *input;

	/// DOCME
	MatroskaFile *file;

	/// DOCME
	std::list<MkvFrame> frames;

	/// DOCME
	std::vector<MkvFrame> rawFrames;

	MatroskaWrapper();
	~MatroskaWrapper();

	/// @brief DOCME
	/// @return 
	///
	bool IsOpen() { return file != NULL; }
	void Open(wxString filename,bool parse=true);
	void Close();
	void Parse();

	void SetToTimecodes(agi::vfr::Framerate &target);

	/// @brief DOCME
	/// @return 
	///
	wxArrayInt GetBytePositions() { return bytePos; }

	/// @brief DOCME
	/// @return 
	///
	unsigned int GetFrameCount() { return timecodes.size(); }
	std::vector<int> GetKeyFrames();
	void GetSubtitles(AssFile *target);
	static bool HasSubtitles(wxString const& filename);

	/// DOCME
	static MatroskaWrapper wrapper;
};