66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
/*
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* Chromaprint -- Audio fingerprinting toolkit
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* Copyright (C) 2010 Lukas Lalinsky <lalinsky@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*/
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#include <assert.h>
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#include <algorithm>
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#include "debug.h"
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#include "silence_remover.h"
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using namespace std;
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using namespace Chromaprint;
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SilenceRemover::SilenceRemover(AudioConsumer *consumer)
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: m_start(true),
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m_consumer(consumer)
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{
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}
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bool SilenceRemover::Reset(int sample_rate, int num_channels)
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{
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if (num_channels != 1) {
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DEBUG() << "Chromaprint::SilenceRemover::Reset() -- Expecting mono audio signal.\n";
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return false;
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}
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m_start = true;
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return true;
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}
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void SilenceRemover::Consume(short *input, int length)
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{
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if (m_start) {
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while (length) {
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if (*input != 0) {
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m_start = false;
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break;
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}
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input++;
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length--;
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}
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}
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if (length) {
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m_consumer->Consume(input, length);
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}
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}
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void SilenceRemover::Flush()
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{
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}
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