khanat-opennel-code/code/nel/src/sound/audio_decoder.cpp

139 lines
3.4 KiB
C++

/**
* \file audio_decoder.cpp
* \brief IAudioDecoder
* \date 2012-04-11 09:34GMT
* \author Jan Boon (Kaetemi)
* IAudioDecoder
*/
/*
* Copyright (C) 2008-2012 by authors
*
* This file is part of RYZOM CORE.
* RYZOM CORE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* RYZOM CORE is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with RYZOM CORE. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "stdsound.h"
#include <nel/sound/audio_decoder.h>
// STL includes
// NeL includes
#include <nel/misc/debug.h>
#include <nel/misc/path.h>
// Project includes
#include <nel/sound/audio_decoder_vorbis.h>
using namespace std;
using namespace NLMISC;
namespace NLSOUND {
IAudioDecoder::IAudioDecoder() : _InternalStream(NULL)
{
}
IAudioDecoder::~IAudioDecoder()
{
if (_InternalStream) { delete _InternalStream; _InternalStream = NULL; }
}
IAudioDecoder *IAudioDecoder::createAudioDecoder(const std::string &filepath, bool async, bool loop)
{
std::string lookup = CPath::lookup(filepath, false);
if (lookup.empty())
{
nlwarning("Music file %s does not exist!", filepath.c_str());
return NULL;
}
std::string type = CFile::getExtension(filepath);
CIFile *ifile = new CIFile();
ifile->setCacheFileOnOpen(!async);
ifile->allowBNPCacheFileOnOpen(!async);
ifile->open(lookup);
IAudioDecoder *mb = createAudioDecoder(type, ifile, loop);
if (mb) mb->_InternalStream = ifile;
else delete ifile;
return mb;
}
IAudioDecoder *IAudioDecoder::createAudioDecoder(const std::string &type, NLMISC::IStream *stream, bool loop)
{
if (!stream)
{
nlwarning("Stream is NULL");
return NULL;
}
std::string type_lower = toLower(type);
if (type_lower == "ogg")
{
return new CAudioDecoderVorbis(stream, loop);
}
else
{
nlwarning("Music file type unknown: '%s'", type_lower.c_str());
return NULL;
}
}
bool IAudioDecoder::getInfo(const std::string &filepath, std::string &artist, std::string &title)
{
std::string lookup = CPath::lookup(filepath, false);
if (lookup.empty())
{
nlwarning("Music file %s does not exist!", filepath.c_str());
return false;
}
std::string type = CFile::getExtension(filepath);
std::string type_lower = NLMISC::toLower(type);
if (type_lower == "ogg")
{
CIFile ifile;
ifile.setCacheFileOnOpen(false);
ifile.allowBNPCacheFileOnOpen(false);
ifile.open(lookup);
return CAudioDecoderVorbis::getInfo(&ifile, artist, title);
}
else
{
nlwarning("Music file type unknown: '%s'", type_lower.c_str());
artist.clear(); title.clear();
return false;
}
}
/// Get audio/container extensions that are currently supported by the nel sound library.
void IAudioDecoder::getMusicExtensions(std::vector<std::string> &extensions)
{
extensions.push_back("ogg");
// extensions.push_back("wav"); // TODO: Easy.
}
/// Return if a music extension is supported by the nel sound library.
bool IAudioDecoder::isMusicExtensionSupported(const std::string &extension)
{
return (extension == "ogg");
}
} /* namespace NLSOUND */
/* end of file */