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/***************************************************************************
* Copyright (C) 2007 by Uriy Zhuravlev stalkerg@gmail.com *
* *
* Copyright (c) 2000-2001 Brad Hughes bhughes@trolltech.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 Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QApplication>
#include <QSettings>
#include <QDir>
extern "C"
{
#ifdef HAVE_SYS_SOUNDCARD_H
#include <sys/soundcard.h>
#else
#include <soundcard.h>
#endif
}
#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 "outputoss.h"
OutputOSS::OutputOSS(QObject * parent) : Output(parent), m_audio_fd(-1)
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_audio_device = settings.value("OSS/device","/dev/dsp").toString();
}
OutputOSS::~OutputOSS()
{
if (m_audio_fd >= 0)
{
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
close(m_audio_fd);
m_audio_fd = -1;
}
}
void OutputOSS::post()
{
ioctl(m_audio_fd, SNDCTL_DSP_POST, 0);
}
void OutputOSS::sync()
{
ioctl(m_audio_fd, SNDCTL_DSP_SYNC, 0);
}
bool OutputOSS::initialize(quint32 freq, int chan, Qmmp::AudioFormat format)
{
m_audio_fd = open(m_audio_device.toAscii(), O_WRONLY);
if (m_audio_fd < 0)
{
qWarning("OSSOutput: failed to open output device '%s'", qPrintable(m_audio_device));
return false;
}
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
int p;
switch (format)
{
case Qmmp::PCM_S16LE:
#ifdef AFMT_S16_NE
p = AFMT_S16_NE;
#else
p = AFMT_S16_LE;
#endif
break;
case Qmmp::PCM_S8:
p = AFMT_S8;
break;
default:
qWarning("OutputOSS: unsupported audio format");
return false;
}
if (ioctl(m_audio_fd, SNDCTL_DSP_SETFMT, &p) == -1)
qWarning("OutputOSS: ioctl SNDCTL_DSP_SETFMT failed: %s",strerror(errno));
if(ioctl(m_audio_fd, SNDCTL_DSP_CHANNELS, &chan) == -1)
qWarning("OutputOSS: ioctl SNDCTL_DSP_CHANNELS failed: %s", strerror(errno));
if(chan <= 2)
{
int param = chan - 1;
if(ioctl(m_audio_fd, SNDCTL_DSP_STEREO, ¶m) == -1)
qWarning("OutputOSS: ioctl SNDCTL_DSP_STEREO failed: %s", strerror(errno));
chan = param + 1;
}
if (ioctl(m_audio_fd, SNDCTL_DSP_SPEED, &freq) < 0)
qWarning("OutputOSS: ioctl SNDCTL_DSP_SPEED failed: %s", strerror(errno));
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
configure(freq, chan, format);
return true;
}
qint64 OutputOSS::latency()
{
return 0;
}
qint64 OutputOSS::writeAudio(unsigned char *data, qint64 maxSize)
{
qint64 m = write(m_audio_fd, data, maxSize);
post();
return m;
}
void OutputOSS::drain()
{
ioctl(m_audio_fd, SNDCTL_DSP_SYNC, 0);
}
void OutputOSS::reset()
{
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
}
/***** MIXER *****/
VolumeOSS::VolumeOSS()
{
m_master = true;
m_mixer_fd = -1;
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_mixer_device = settings.value("OSS/mixer_device","/dev/mixer").toString();
openMixer();
}
VolumeOSS::~VolumeOSS()
{
if (m_mixer_fd >= 0)
{
close(m_mixer_fd);
m_mixer_fd = -1;
}
}
void VolumeOSS::setVolume(int channel, int value)
{
if (m_mixer_fd < 0)
return;
int l = (channel == Volume::LEFT_CHANNEL) ? value : volume(Volume::LEFT_CHANNEL);
int r = (channel == Volume::RIGHT_CHANNEL) ? value : volume(Volume::RIGHT_CHANNEL);
long cmd;
int devs = 0;
ioctl(m_mixer_fd, SOUND_MIXER_READ_DEVMASK, &devs);
if ((devs & SOUND_MASK_PCM) && !m_master)
cmd = SOUND_MIXER_WRITE_PCM;
else if ((devs & SOUND_MASK_VOLUME) && m_master)
cmd = SOUND_MIXER_WRITE_VOLUME;
else
{
//close(mifd);
return;
}
int v = (r << 8) | l;
ioctl(m_mixer_fd, cmd, &v);
}
int VolumeOSS::volume(int channel)
{
if(m_mixer_fd < 0)
return 0;
int cmd;
int v, devs = 0;
ioctl(m_mixer_fd, SOUND_MIXER_READ_DEVMASK, &devs);
if ((devs & SOUND_MASK_PCM) && !m_master)
cmd = SOUND_MIXER_READ_PCM;
else if ((devs & SOUND_MASK_VOLUME) && m_master)
cmd = SOUND_MIXER_READ_VOLUME;
else
return 0;
ioctl(m_mixer_fd, cmd, &v);
if(channel == Volume::LEFT_CHANNEL)
return (v & 0xFF00) >> 8;
return (v & 0x00FF);
}
void VolumeOSS::openMixer()
{
if (m_mixer_fd >= 0)
return;
m_mixer_fd = open(m_mixer_device.toAscii(), O_RDWR);
if (m_mixer_fd < 0)
{
qWarning("VolumeControlOSS: unable to open mixer device '%s'", qPrintable(m_mixer_device));
return;
}
}
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