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xlxd/ambed/cvoicepacket.cpp
LX3JL 0b5f1fbdd4 ambed version 1.0.0
added amber version 1.0.0
2017-08-09 13:26:01 +02:00

87 lines
2.5 KiB
C++

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