Aegisub/aegisub/libmedia/audio/ffms_audio.h

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// Copyright (c) 2008-2009, Karl Blomster <thefluff@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file ffms_audio.h
/// @brief FFmpegSource Audio support.
/// @ingroup fmms audio
#include "../../libffms/include/ffms.h"
#include <libmedia/audio.h>
#ifndef AGI_PRE
#ifdef WIN32
#include <objbase.h>
#endif
#include <map>
#endif
#include "../common/ffms_common.h"
namespace media {
namespace ffms {
/// @class Audio
/// Audio file support.
class FFmpegSourceAudioProvider : public AudioProvider, FFmpegSourceProvider {
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(std::string filename);
public:
FFmpegSourceAudioProvider(std::string 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;
};
} // namespace ffms
} // namespace media