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

/// @file audio_provider_ffmpegsource.h
/// @see audio_provider_ffmpegsource.cpp
/// @ingroup audio_input ffms
///

#ifdef WITH_FFMS2
#include "include/aegisub/audio_provider.h"
#include "ffmpegsource_common.h"


/// @class FFmpegSourceAudioProvider
/// @brief Implements audio loading with the FFMS library.
class FFmpegSourceAudioProvider : public AudioProvider, FFmpegSourceProvider {
private:
	FFMS_AudioSource *AudioSource;	///< audio source object
	bool COMInited;					///< COM initialization state

	mutable char FFMSErrMsg[1024];			///< FFMS error message
	mutable FFMS_ErrorInfo ErrInfo;			///< FFMS error codes/messages

	void Close();
	void LoadAudio(wxString filename);

public:
	FFmpegSourceAudioProvider(wxString filename);
	virtual ~FFmpegSourceAudioProvider();

	/// @brief Checks sample endianness
	/// @return Returns true.
	/// FFMS always delivers native endian samples.
	bool AreSamplesNativeEndian() const { return true; }
	bool NeedsCache() const { return true; }

	virtual void GetAudio(void *buf, int64_t start, int64_t count) const;
};
#endif