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https://github.com/ShaYmez/xlxd.git
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87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
//
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// cvoicepacket.cpp
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 28/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd 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 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd 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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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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#include "main.h"
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#include <string.h>
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#include <math.h>
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#include "cvoicepacket.h"
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////////////////////////////////////////////////////////////////////////////////////////
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// constructor
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CVoicePacket::CVoicePacket()
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{
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m_iSize = 0;
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::memset(m_uiVoice, 0, sizeof(m_uiVoice));
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}
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CVoicePacket::CVoicePacket(const uint8 *voice, int size)
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{
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m_iSize = MIN(size, sizeof(m_uiVoice));
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::memset(m_uiVoice, 0, sizeof(m_uiVoice));
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::memcpy(m_uiVoice, voice, m_iSize);
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}
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CVoicePacket::CVoicePacket(const CVoicePacket &packet)
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: CPacket(packet)
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{
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m_iSize = packet.m_iSize;
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::memcpy(m_uiVoice, packet.m_uiVoice, sizeof(m_uiVoice));
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// destructor
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CVoicePacket::~CVoicePacket()
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{
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Set
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void CVoicePacket::SetVoice(const uint8 *voice, int size)
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{
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m_iSize = MIN(size, sizeof(m_uiVoice));
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::memset(m_uiVoice, 0, sizeof(m_uiVoice));
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::memcpy(m_uiVoice, voice, m_iSize);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// gain
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void CVoicePacket::ApplyGain(int dB)
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{
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float mult = pow(10, dB/20.0);
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for ( int i = 0; i < m_iSize; i += 2 )
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{
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float smp = (float)(short)MAKEWORD(m_uiVoice[i+1], m_uiVoice[i]);
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smp *= mult;
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m_uiVoice[i] = HIBYTE((short)smp);
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m_uiVoice[i+1] = LOBYTE((short)smp);
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}
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}
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