recorder.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
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 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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static const char* const Recorder_cxx_Version =
    "$Id: Recorder.cxx,v 1.2.2.2 2003/02/07 02:45:25 sprajpat Exp $";


#include "global.h"
#include "Recorder.h"
#include "cpLog.h"

///
Recorder::Recorder()
   : m_iFd(0), m_bActive(false) 
{
}

///
Recorder::~Recorder()
{
    m_bActive = false;
    close();
}

/// Start the recording 
int Recorder::start()
{
    cpLog(LOG_DEBUG, "Record active");
    m_bActive = true;
    return true;
}

/// write the buffer 
int Recorder::write(const void *buffer, int size)
{
    if ( !m_bActive ) return 0;
    return ::sf_write_raw(m_iFd, (void *)buffer, size);
}

/// close the recording 
int Recorder::close()
{
    int ret = 0;
    m_bActive = false;
    if(m_iFd)
    {
        ret = ::sf_close(m_iFd);
        m_iFd = 0;
    }
    return ret;
}


/// Open a file for writing 
int Recorder::open(const string &fileName)
{

    SF_INFO info;

    memset(&info, 0, sizeof(info));
    info.samplerate = 8000;
    info.channels = 1;
    info.pcmbitwidth = 8;
    info.format = SF_FORMAT_WAV | SF_FORMAT_ULAW;
    m_iFd = sf_open_write(fileName.c_str(), &info);
    if ( m_iFd == NULL )
    {
        cpLog(LOG_ERR, "Error opening file for writing");
        return false;
    }
    return true;
}