gzdoom-gles/libraries/zmusic/decoder/sounddecoder.cpp

117 lines
3.5 KiB
C++

/*
** sounddecoder.cpp
** baseclass for sound format decoders
**
**---------------------------------------------------------------------------
** Copyright 2008-2019 Chris Robinson
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. 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.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
**---------------------------------------------------------------------------
**
*/
#include "sndfile_decoder.h"
#include "mpg123_decoder.h"
SoundDecoder *SoundDecoder::CreateDecoder(MusicIO::FileInterface *reader)
{
SoundDecoder *decoder = NULL;
auto pos = reader->tell();
#ifdef HAVE_SNDFILE
decoder = new SndFileDecoder;
if (decoder->open(reader))
return decoder;
reader->seek(pos, SEEK_SET);
delete decoder;
decoder = NULL;
#endif
#ifdef HAVE_MPG123
decoder = new MPG123Decoder;
if (decoder->open(reader))
return decoder;
reader->seek(pos, SEEK_SET);
delete decoder;
decoder = NULL;
#endif
return decoder;
}
// Default readAll implementation, for decoders that can't do anything better
std::vector<uint8_t> SoundDecoder::readAll()
{
std::vector<uint8_t> output;
unsigned total = 0;
unsigned got;
output.resize(total+32768);
while((got=(unsigned)read((char*)&output[total], output.size()-total)) > 0)
{
total += got;
output.resize(total*2);
}
output.resize(total);
return output;
}
//==========================================================================
//
// other callbacks
//
//==========================================================================
extern "C"
short* dumb_decode_vorbis(int outlen, const void* oggstream, int sizebytes)
{
short* samples = (short*)calloc(1, outlen);
ChannelConfig chans;
SampleType type;
int srate;
// The decoder will take ownership of the reader if it succeeds so this may not be a local variable.
MusicIO::MemoryReader* reader = new MusicIO::MemoryReader((const uint8_t*)oggstream, sizebytes);
SoundDecoder* decoder = SoundDecoder::CreateDecoder(reader);
if (!decoder)
{
reader->close();
return samples;
}
decoder->getInfo(&srate, &chans, &type);
if (chans != ChannelConfig_Mono || type != SampleType_Int16)
{
delete decoder;
return samples;
}
decoder->read((char*)samples, outlen);
delete decoder;
return samples;
}