AUD_SilenceReader.cpp

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/*
 * $Id: AUD_SilenceReader.cpp 35141 2011-02-25 10:21:56Z jesterking $
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * Copyright 2009-2011 Jörg Hermann Müller
 *
 * This file is part of AudaSpace.
 *
 * Audaspace is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * AudaSpace 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Audaspace; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "AUD_SilenceReader.h"

#include <cstring>

AUD_SilenceReader::AUD_SilenceReader() :
        m_position(0)
{
}

bool AUD_SilenceReader::isSeekable() const
{
        return true;
}

void AUD_SilenceReader::seek(int position)
{
        m_position = position;
}

int AUD_SilenceReader::getLength() const
{
        return -1;
}

int AUD_SilenceReader::getPosition() const
{
        return m_position;
}

AUD_Specs AUD_SilenceReader::getSpecs() const
{
        AUD_Specs specs;
        specs.rate = AUD_RATE_44100;
        specs.channels = AUD_CHANNELS_MONO;
        return specs;
}

void AUD_SilenceReader::read(int & length, sample_t* & buffer)
{
        // resize if necessary
        if(m_buffer.getSize() < length * sizeof(sample_t))
        {
                m_buffer.resize(length * sizeof(sample_t));
                memset(m_buffer.getBuffer(), 0, m_buffer.getSize());
        }

        buffer = m_buffer.getBuffer();
        m_position += length;
}