Aegisub/aegisub/src/audio_provider_ffmpegsource.h

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// Copyright (c) 2008-2009, Karl Blomster
// 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 audio_provider_ffmpegsource.h
/// @see audio_provider_ffmpegsource.cpp
/// @ingroup audio_input ffms
///
///////////
// Headers
#ifdef WITH_FFMPEGSOURCE
#include "include/aegisub/audio_provider.h"
#include "ffmpegsource_common.h"
/// @class FFmpegSourceAudioProvider
/// @brief Implents audio loading with the FFMS library.
class FFmpegSourceAudioProvider : public AudioProvider, FFmpegSourceProvider {
private:
FFMS_AudioSource *AudioSource; /// audio source object
bool COMInited; /// COM initialization state
char FFMSErrMsg[1024]; /// FFMS error message
FFMS_ErrorInfo ErrInfo; /// FFMS error codes/messages
wxString ErrorMsg; /// wx-ified error message
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() { return true; }
virtual void GetAudio(void *buf, int64_t start, int64_t count);
};
/// @class FFmpegSourceAudioProviderFactory
/// @brief Creates a FFmpegSource audio provider.
class FFmpegSourceAudioProviderFactory : public AudioProviderFactory {
public:
/// @brief Creates a FFmpegSource audio provider.
/// @param video The audio filename to open.
/// @return Returns the audio provider.
AudioProvider *CreateProvider(wxString file) { return new FFmpegSourceAudioProvider(file); }
};
#endif /* WITH_FFMPEGSOURCE */