/***************************************************************************
* Copyright (C) 2010-2015 by Ilya Kotov *
* forkotov02@ya.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., *
* 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 </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;
VolumeOSS4 *OutputOSS4::m_vc = 0;
Qmmp::ChannelPosition OutputOSS4::m_oss_pos[16] =
{
Qmmp::CHAN_NULL, //0 = null
Qmmp::CHAN_FRONT_LEFT, //1 = left
Qmmp::CHAN_FRONT_RIGHT, //2 = right
Qmmp::CHAN_FRONT_CENTER, //3 = center
Qmmp::CHAN_LFE, //4 = lfe
Qmmp::CHAN_SIDE_LEFT, //5 = left surround
Qmmp::CHAN_SIDE_RIGHT, //6 = right surround
Qmmp::CHAN_REAR_LEFT, //7 = left rear
Qmmp::CHAN_REAR_LEFT, //8 = right rear
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL,
Qmmp::CHAN_NULL
};
OutputOSS4::OutputOSS4() : Output()
{
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;
}
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(quint32 freq, ChannelMap map, Qmmp::AudioFormat format)
{
m_audio_fd = open(m_audio_device.toLatin1(), O_WRONLY);
if (m_audio_fd < 0)
{
qWarning("OSS4Output: unable to open output device '%s'; error: %s",
qPrintable(m_audio_device), strerror(errno));
return false;
}
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
int p;
int chan = map.count();
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 false;
}
if (ioctl(m_audio_fd, SNDCTL_DSP_SETFMT, &p) == -1)
qWarning("OutputOSS4: ioctl SNDCTL_DSP_SETFMT failed: %s",strerror(errno));
if(ioctl(m_audio_fd, SNDCTL_DSP_CHANNELS, &chan) == -1)
qWarning("OutputOSS4: ioctl SNDCTL_DSP_CHANNELS failed: %s", strerror(errno));
if (ioctl(m_audio_fd, SNDCTL_DSP_SPEED, &freq) < 0)
qWarning("OutputOSS4: ioctl SNDCTL_DSP_SPEED failed: %s", strerror(errno));
int enabled = 1;
if(ioctl(m_audio_fd, SNDCTL_DSP_COOKEDMODE, &enabled) == -1)
qWarning("OutputOSS4: ioctl SNDCTL_DSP_COOKEDMODE: %s", strerror(errno));
quint64 layout = 0;
if (ioctl (m_audio_fd, SNDCTL_DSP_GET_CHNORDER, &layout) == -1)
{
qWarning("OutputOSS4: couldn't query channel layout, assuming default");
layout = CHNORDER_NORMAL;
}
ChannelMap oss_map;
for(int i = 0; i < chan; i++)
{
quint32 pos = ((layout >> (i * 4)) & 0x0f);
oss_map << m_oss_pos[pos];
}
ioctl(m_audio_fd, SNDCTL_DSP_RESET, 0);
configure(freq, oss_map, format);
if(m_vc)
m_vc->restore();
return true;
}
qint64 OutputOSS4::latency()
{
return 0;
}
qint64 OutputOSS4::writeAudio(unsigned char *data, qint64 maxSize)
{
qint64 m = write(m_audio_fd, data, maxSize);
post();
return m;
}
void OutputOSS4::drain()
{
ioctl(m_audio_fd, SNDCTL_DSP_SYNC, 0);
}
void OutputOSS4::reset()
{
ioctl(m_audio_fd, SNDCTL_DSP_SKIP, 0);
}
/***** MIXER *****/
VolumeOSS4::VolumeOSS4()
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_volume = settings.value("OSS4/volume", 0x3232).toInt();
OutputOSS4::m_vc = this;
}
VolumeOSS4::~VolumeOSS4()
{
VolumeSettings vol = volume();
m_volume = (vol.right << 8) | vol.left;
OutputOSS4::m_vc = 0;
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
settings.setValue("OSS4/volume", m_volume);
}
void VolumeOSS4::setVolume(const VolumeSettings &vol)
{
m_volume = (vol.right << 8) | vol.left;
if(OutputOSS4::instance() && OutputOSS4::instance()->fd() >= 0)
{
ioctl(OutputOSS4::instance()->fd(), SNDCTL_DSP_SETPLAYVOL, &m_volume);
}
}
VolumeSettings VolumeOSS4::volume() const
{
VolumeSettings vol;
if(OutputOSS4::instance() && OutputOSS4::instance()->fd() >= 0)
{
int v = 0;
if (ioctl(OutputOSS4::instance()->fd(), SNDCTL_DSP_GETPLAYVOL, &v) < 0)
v = 0;
vol.left = v & 0x00FF;
vol.right = (v & 0xFF00) >> 8;
}
else
{
vol.left = m_volume & 0x00FF;
vol.right = (m_volume & 0xFF00) >> 8;
}
return vol;
}
void VolumeOSS4::restore()
{
if(OutputOSS4::instance() && OutputOSS4::instance()->fd() >= 0)
{
ioctl(OutputOSS4::instance()->fd(), SNDCTL_DSP_SETPLAYVOL, &m_volume);
}
}
