/***************************************************************************
* Copyright (C) 2010 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QApplication>
#include <QSettings>
#include <QDir>
extern "C"
{
#ifdef HAVE_SYS_SOUNDCARD_H
#include <sys/soundcard.h>
#else
#include <soundcard.h>
#endif
//#include </usr/lib/oss/include/sys/soundcard.h>
}
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <iostream>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <qmmp/buffer.h>
#include <qmmp/visual.h>
#include "outputoss4.h"
OutputOSS4 *OutputOSS4::m_instance = 0;
OutputOSS4::OutputOSS4(QObject *parent) : Output(parent)
{
m_do_select = true;
m_audio_fd = -1;
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_audio_device = settings.value("OSS4/device", DEFAULT_DEV).toString();
m_instance = this;
}
OutputOSS4::~OutputOSS4()
{
if (m_audio_fd >= 0)
{
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
close(m_audio_fd);
m_audio_fd = -1;
}
m_instance = 0;
}
void OutputOSS4::configure(quint32 freq, int chan, Qmmp::AudioFormat format)
{
int p;
switch (format)
{
case Qmmp::PCM_S32LE:
p = AFMT_S32_LE;
break;
case Qmmp::PCM_S24LE:
p = AFMT_S24_LE;
break;
case Qmmp::PCM_S16LE:
p = AFMT_S16_LE;
break;
case Qmmp::PCM_S8:
p = AFMT_S8;
break;
default:
qWarning("OutputOSS4: unsupported audio format");
return;
}
int param = p;
if (ioctl(m_audio_fd, SNDCTL_DSP_SETFMT, &p) < 0)
{
qWarning("OutputOSS4: ioctl SNDCTL_DSP_SETFMT failed: %s",strerror(errno));
return;
}
if(param != p)
{
qWarning("OutputOSS4: unsupported audio format");
return;
}
param = chan;
if(ioctl(m_audio_fd, SNDCTL_DSP_CHANNELS, &chan) < 0)
{
qWarning("OutputOSS4: ioctl SNDCTL_DSP_CHANNELS failed: %s", strerror(errno));
return;
}
if(param != chan)
{
qWarning("OutputOSS4: unsupported %d-channel mode", param);
return;
}
uint param2 = freq;
if (ioctl(m_audio_fd, SNDCTL_DSP_SPEED, &freq) < 0)
{
qWarning("OutputOSS4: ioctl SNDCTL_DSP_SPEED failed: %s", strerror(errno));
return;
}
if(param2 != freq)
{
qWarning("OutputOSS4: unsupported sample rate");
return;
}
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
Output::configure(freq, chan, format);
}
int OutputOSS4::fd()
{
return m_audio_fd;
}
OutputOSS4 *OutputOSS4::instance()
{
return m_instance;
}
void OutputOSS4::post()
{
ioctl(m_audio_fd, SNDCTL_DSP_POST, 0);
}
void OutputOSS4::sync()
{
ioctl(m_audio_fd, SNDCTL_DSP_SYNC, 0);
}
bool OutputOSS4::initialize()
{
m_audio_fd = open(m_audio_device.toAscii(), O_WRONLY, 0);
if (m_audio_fd < 0)
{
qWarning("OSS4Output: unable to open output device '%s'; error: %s",
qPrintable(m_audio_device), strerror(errno));
return false;
}
int flags;
if ((flags = fcntl(m_audio_fd, F_GETFL, 0)) > 0)
{
flags &= O_NDELAY;
fcntl(m_audio_fd, F_SETFL, flags);
}
fd_set afd;
FD_ZERO(&afd);
FD_SET(m_audio_fd, &afd);
struct timeval tv;
tv.tv_sec = 0l;
tv.tv_usec = 50000l;
m_do_select = (select(m_audio_fd + 1, 0, &afd, 0, &tv) > 0);
return true;
}
qint64 OutputOSS4::latency()
{
return 0;
}
qint64 OutputOSS4::writeAudio(unsigned char *data, qint64 maxSize)
{
fd_set afd;
struct timeval tv;
qint64 m = -1, l;
FD_ZERO(&afd);
FD_SET(m_audio_fd, &afd);
// nice long poll timeout
tv.tv_sec = 5l;
tv.tv_usec = 0l;
if ((!m_do_select || (select(m_audio_fd + 1, 0, &afd, 0, &tv) > 0 &&
FD_ISSET(m_audio_fd, &afd))))
{
l = qMin(int(2048), int(maxSize));
if (l > 0)
{
m = write(m_audio_fd, data, l);
}
}
post();
return m;
}
void OutputOSS4::drain()
{
ioctl(m_audio_fd, SNDCTL_DSP_SYNC, 0);
}
void OutputOSS4::reset()
{
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
}
/***** MIXER *****/
VolumeControlOSS4::VolumeControlOSS4(QObject *parent) : VolumeControl(parent)
{}
VolumeControlOSS4::~VolumeControlOSS4()
{}
void VolumeControlOSS4::setVolume(int l, int r)
{
if(OutputOSS4::instance() && OutputOSS4::instance()->fd() >= 0)
{
int v = (r << 8) | l;
ioctl(OutputOSS4::instance()->fd(), SNDCTL_DSP_SETPLAYVOL, &v);
}
}
void VolumeControlOSS4::volume(int *ll,int *rr)
{
*ll = 0;
*rr = 0;
if(OutputOSS4::instance() && OutputOSS4::instance()->fd() >= 0)
{
int v = 0;
if (ioctl(OutputOSS4::instance()->fd(), SNDCTL_DSP_GETPLAYVOL, &v) < 0)
v = 0;
*rr = (v & 0xFF00) >> 8;
*ll = (v & 0x00FF);
}
}
