91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2014 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 "stdafx.h"
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#include <sstream>
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#include <algorithm>
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#include "helpers/MemoryHelper.h"
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#include "helpers/LogHelper.h"
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#include "helpers/ChannelHelper.h"
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#include "ChannelFilter.h"
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using namespace std;
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ChannelFilter::ChannelFilter(const vector<wstring>& words)
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: words(words)
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{
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}
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ChannelFilter::~ChannelFilter()
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{
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}
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vector<wstring> ChannelFilter::initialize(float sampleRate, unsigned maxFrameCount, vector<wstring> channelNames)
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{
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size_t channelCount = channelNames.size();
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vector<bool> selectedChannels = vector<bool>(channelCount, false);
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for (vector<wstring>::iterator it = words.begin(); it != words.end(); it++)
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{
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wstring currentWord = *it;
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int channelNr = -1;
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if (currentWord == L"ALL")
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selectedChannels = vector<bool>(channelCount, true);
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else
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channelNr = ChannelHelper::getChannelIndex(currentWord, channelNames);
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if (channelNr != -1 && channelNr < (int)channelCount)
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{
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selectedChannels[channelNr] = true;
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}
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}
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vector<wstring> selectedChannelNames;
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for (unsigned i = 0; i < channelCount; i++)
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{
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if (selectedChannels[i])
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selectedChannelNames.push_back(channelNames[i]);
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}
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wstringstream channelNumbers;
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for (size_t c = 0; c < channelCount; c++)
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{
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if (selectedChannels[c])
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{
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if (channelNumbers.tellp() > 0)
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channelNumbers << L", ";
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channelNumbers << c + 1;
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}
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}
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TraceF(L"Selecting channel(s) number %s", channelNumbers.str().c_str());
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return selectedChannelNames;
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}
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#pragma AVRT_CODE_BEGIN
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void ChannelFilter::process(float** output, float** input, unsigned frameCount)
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{
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// nothing to do
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}
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#pragma AVRT_CODE_END
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