Aegisub/aegisub/src/ffmpegsource_common.h

// Copyright (c) 2008-2009, Karl Blomster
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

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

#ifdef WITH_FFMPEGSOURCE

#ifndef AGI_PRE
#include <map>

#include <wx/filename.h>
#include <wx/thread.h>
#endif

#include <ffms.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,
	};

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

	FFMS_Index *DoIndexing(FFMS_Indexer *Indexer, const wxString& Cachename, int Trackmask, FFMS_IndexErrorHandling IndexEH);
	std::map<int,wxString> GetTracksOfType(FFMS_Indexer *Indexer, FFMS_TrackType Type);
	int AskForTrackSelection(const std::map<int,wxString>& TrackList, FFMS_TrackType Type);
	wxString GetCacheFilename(const wxString& filename);
	void SetLogLevel();
	FFMS_IndexErrorHandling GetErrorHandlingMode();

	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 */