// Copyright (c) 2008-2009, Karl Blomster
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// Aegisub Project http://www.aegisub.org/
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// $Id$

/// @file ffmpegsource_common.h
/// @see ffmpegsource_common.cpp
/// @ingroup video_input audio_input ffms
///

#pragma once
#ifdef WITH_FFMPEGSOURCE

///////////
// Headers
#include <wx/wxprec.h>
#include <wx/thread.h>
#include "include/aegisub/aegisub.h"
#include <ffms.h>
#include "dialog_progress.h"


/// Index all tracks
#define FFMS_TRACKMASK_ALL		-1
/// Index no tracks
#define FFMS_TRACKMASK_NONE		0


/// @class FFmpegSourceProvider
/// @brief Base class for FFMS2 source providers; contains common functions etc
class FFmpegSourceProvider {
	friend class FFmpegSourceCacheCleaner;
public:
	/// Logging level constants from avutil/log.h
	enum FFMS_LogLevel {
		/// nothing printed
		FFMS_LOG_QUIET		= -8,
		FFMS_LOG_PANIC		= 0,
		FFMS_LOG_FATAL		= 8,
		FFMS_LOG_ERROR		= 16,
		FFMS_LOG_WARNING	= 24,
		FFMS_LOG_INFO		= 32,
		FFMS_LOG_VERBOSE	= 40,
		FFMS_LOG_DEBUG		= 48,
	};

	/// Indexing progress report dialog
	struct IndexingProgressDialog {
		volatile bool IndexingCanceled;
		DialogProgress *ProgressDialog;
	};

	/// Mutex preventing two cache cleaner threads from running at the same time
	static wxMutex CleaningInProgress;
	bool CleanCache();

	static int FFMS_CC UpdateIndexingProgress(int64_t Current, int64_t Total, void *Private);
	
	FFIndex *DoIndexing(FFIndexer *Indexer, const wxString& Cachename, int Trackmask, bool IgnoreDecodeErrors);
	std::map<int,wxString> GetTracksOfType(FFIndexer *Indexer, FFMS_TrackType Type);
	int AskForTrackSelection(const std::map<int,wxString>& TrackList, FFMS_TrackType Type);
	wxString GetCacheFilename(const wxString& filename);
	void SetLogLevel();

	virtual ~FFmpegSourceProvider() {}
};



/// @class FFmpegSourceCacheCleaner
/// @brief Implements index cache cleaning functionality for the FFMS2 providers 
class FFmpegSourceCacheCleaner : public wxThread {
private:
	FFmpegSourceProvider *parent;

public:
	FFmpegSourceCacheCleaner(FFmpegSourceProvider *par);

	~FFmpegSourceCacheCleaner() {};
	wxThread::ExitCode Entry();
};


#endif /* WITH_FFMPEGSOURCE */