67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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This file is part of Equalizer APO, a system-wide equalizer.
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Copyright (C) 2017 Jonas Thedering
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "QtSndfileHandle.h"
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sf_count_t getFileLenDevice(void* user_data)
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{
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QIODevice* device = (QIODevice*)user_data;
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return device->size();
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}
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sf_count_t seekDevice(sf_count_t offset, int whence, void* user_data)
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{
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QIODevice* device = (QIODevice*)user_data;
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qint64 pos;
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if (whence == SF_SEEK_SET)
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pos = 0;
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else if (whence == SF_SEEK_CUR)
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pos = device->pos();
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else // whence == SF_SEEK_END
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pos = device->size();
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if (!device->seek(pos + offset))
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return -1;
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return device->pos();
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}
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sf_count_t readDevice(void* ptr, sf_count_t count, void* user_data)
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{
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QIODevice* device = (QIODevice*)user_data;
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return device->read((char*)ptr, count);
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}
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sf_count_t writeDevice(const void* ptr, sf_count_t count, void* user_data)
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{
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QIODevice* device = (QIODevice*)user_data;
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return device->write((const char*)ptr, count);
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}
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sf_count_t tellDevice(void* user_data)
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{
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QIODevice* device = (QIODevice*)user_data;
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return device->pos();
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}
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SF_VIRTUAL_IO g_deviceIo = {getFileLenDevice, seekDevice, readDevice, writeDevice, tellDevice};
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QtSndfileHandle::QtSndfileHandle(QIODevice& device, int mode, int format, int channels, int samplerate)
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: SndfileHandle(g_deviceIo, &device, mode, format, channels, samplerate)
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{
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}
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