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/* Ekiga -- A VoIP and Video-Conferencing application
* Copyright (C) 2000-2009 Damien Sandras <dsandras@seconix.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*
* Ekiga is licensed under the GPL license and as a special exception,
* you have permission to link or otherwise combine this program with the
* programs OPAL, OpenH323 and PWLIB, and distribute the combination,
* without applying the requirements of the GNU GPL to the OPAL, OpenH323
* and PWLIB programs, as long as you do follow the requirements of the
* GNU GPL for all the rest of the software thus combined.
*/
/*
* audiodev.cpp - description
* --------------------------------
* begin : Thu Mar 06 2008
* copyright : (C) 2008 by Matthias Schneider
* description : Audio dummy device to allow opal make use of
* the Ekiga Engine
*
*/
#pragma implementation "opal-audio.h"
#include "opal-audio.h"
PSoundChannel_EKIGA::PSoundChannel_EKIGA (Ekiga::ServiceCore & _core):
core (_core),
audioinput_core (core.get<Ekiga::AudioInputCore> ("audioinput-core")),
audiooutput_core (core.get<Ekiga::AudioOutputCore> ("audiooutput-core"))
{
opened = false;
}
PSoundChannel_EKIGA::PSoundChannel_EKIGA (const PString & /*_device*/,
Directions dir,
unsigned numChannels,
unsigned sampleRate,
unsigned bitsPerSample,
Ekiga::ServiceCore & _core):
core (_core),
audioinput_core (core.get<Ekiga::AudioInputCore> ("audioinput-core")),
audiooutput_core (core.get<Ekiga::AudioOutputCore> ("audiooutput-core"))
{
opened = false;
Open (device, dir, numChannels, sampleRate, bitsPerSample);
}
PSoundChannel_EKIGA::~PSoundChannel_EKIGA()
{
Close();
}
PString PSoundChannel_EKIGA::GetDefaultDevice(Directions dir)
{
PStringArray devicenames;
devicenames = PSoundChannel_EKIGA::GetDeviceNames (dir);
return devicenames[0];
}
bool PSoundChannel_EKIGA::Open (const PString & /*_device*/,
Directions _dir,
unsigned _numChannels,
unsigned _sampleRate,
unsigned _bitsPerSample)
{
direction = _dir;
if (_dir == Recorder) {
audioinput_core->start_stream(_numChannels, _sampleRate, _bitsPerSample);
}
else {
audiooutput_core->start (_numChannels, _sampleRate, _bitsPerSample);
}
mNumChannels = _numChannels;
mSampleRate = _sampleRate;
mBitsPerSample = _bitsPerSample;
opened = true;
return true;
}
bool PSoundChannel_EKIGA::Close()
{
if (opened == false)
return true;
if (direction == Recorder) {
audioinput_core->stop_stream();
}
else {
audiooutput_core->stop();
}
opened = false;
return true;
}
bool PSoundChannel_EKIGA::Write (const void *buf, PINDEX len)
{
unsigned bytesWritten = 0;
if (direction == Player) {
audiooutput_core->set_frame_data((char*)buf, len, bytesWritten);
}
lastWriteCount = bytesWritten;
return true;
}
bool PSoundChannel_EKIGA::Read (void * buf, PINDEX len)
{
unsigned bytesRead = 0;
if (direction == Recorder) {
audioinput_core->get_frame_data((char*)buf, len, bytesRead);
}
lastReadCount = bytesRead;
return true;
}
unsigned PSoundChannel_EKIGA::GetChannels() const
{
return mNumChannels;
}
unsigned PSoundChannel_EKIGA::GetSampleRate() const
{
return mSampleRate;
}
unsigned PSoundChannel_EKIGA::GetSampleSize() const
{
return mBitsPerSample;
}
bool PSoundChannel_EKIGA::SetBuffers (PINDEX size, PINDEX count)
{
if (direction == Recorder) {
audioinput_core->set_stream_buffer_size(size, count);
}
else {
audiooutput_core->set_buffer_size(size, count);
}
storedPeriods = count;
storedSize = size;
isInitialised = false;
return true;
}
bool PSoundChannel_EKIGA::GetBuffers(PINDEX & size, PINDEX & count)
{
size = storedSize;
count = storedPeriods;
return false;
}
bool PSoundChannel_EKIGA::IsOpen () const
{
return opened;
}
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