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tderadio/plugins/oss-sound/oss-sound.cpp

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/***************************************************************************
oss-sound.cpp - description
-------------------
begin : Sun Mar 21 2004
copyright : (C) 2004 by Martin Witte
email : witte@kawo1.rwth-aachen.de
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "oss-sound.h"
#include "../../src/include/aboutwidget.h"
#include <tdelocale.h>
#include <tdeaboutdata.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/soundcard.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include <errno.h>
#include "oss-sound-configuration.h"
#include "../../src/include/utils.h"
///////////////////////////////////////////////////////////////////////
//// plugin library functions
PLUGIN_LIBRARY_FUNCTIONS(OSSSoundDevice, "tderadio-oss-sound", i18n("Open Sound System (OSS) Support"));
/////////////////////////////////////////////////////////////////////////////
struct _lrvol { unsigned char l, r; short dummy; };
OSSSoundDevice::OSSSoundDevice(const TQString &name)
: TQObject(NULL, NULL),
PluginBase(name, i18n("TDERadio OSS Sound Plugin")),
m_DSPDeviceName(""),
m_MixerDeviceName(""),
m_DSP_fd(-1),
m_Mixer_fd(-1),
m_DuplexMode(DUPLEX_UNKNOWN),
m_DSPFormat(),
m_PassivePlaybackStreams(),
m_PlaybackStreamID(),
m_CaptureStreamID(),
m_BufferSize(65536),
m_PlaybackBuffer(m_BufferSize),
m_CaptureBuffer(m_BufferSize),
m_CaptureRequestCounter(0),
m_CapturePos(0),
m_CaptureStartTime(0),
//m_PlaybackSkipCount(0),
m_CaptureSkipCount(0),
m_EnablePlayback(true),
m_EnableCapture(true)
{
TQObject::connect(&m_PollingTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(slotPoll()));
}
OSSSoundDevice::~OSSSoundDevice()
{
stopCapture(m_CaptureStreamID);
stopPlayback(m_PlaybackStreamID);
closeDSPDevice();
closeMixerDevice();
}
bool OSSSoundDevice::connectI(Interface *i)
{
bool a = PluginBase::connectI(i);
bool b = ISoundStreamClient::connectI(i);
return a || b;
}
bool OSSSoundDevice::disconnectI(Interface *i)
{
bool a = PluginBase::disconnectI(i);
bool b = ISoundStreamClient::disconnectI(i);
return a || b;
}
void OSSSoundDevice::noticeConnectedI (ISoundStreamServer *s, bool pointer_valid)
{
ISoundStreamClient::noticeConnectedI(s, pointer_valid);
if (s && pointer_valid) {
s->register4_sendReleasePlayback(this);
s->register4_sendReleaseCapture(this);
s->register4_sendPlaybackVolume(this);
s->register4_sendCaptureVolume(this);
s->register4_queryPlaybackVolume(this);
s->register4_queryCaptureVolume(this);
s->register4_sendStartPlayback(this);
s->register4_sendPausePlayback(this);
s->register4_sendStopPlayback(this);
s->register4_queryIsPlaybackRunning(this);
s->register4_sendStartCaptureWithFormat(this);
s->register4_sendStopCapture(this);
s->register4_queryIsCaptureRunning(this);
s->register4_notifySoundStreamClosed(this);
s->register4_notifySoundStreamRedirected(this);
s->register4_notifySoundStreamData(this);
}
}
// PluginBase
void OSSSoundDevice::saveState (TDEConfig *c) const
{
c->setGroup(TQString("oss-sound-") + PluginBase::name());
c->writeEntry("dsp-device", m_DSPDeviceName);
c->writeEntry("mixer-device", m_MixerDeviceName);
c->writeEntry("enable-playback", m_EnablePlayback);
c->writeEntry("enable-capture", m_EnableCapture);
c->writeEntry("buffer-size", m_BufferSize);
c->writeEntry("soundstreamclient-id", m_SoundStreamClientID);
}
void OSSSoundDevice::restoreState (TDEConfig *c)
{
c->setGroup(TQString("oss-sound-") + PluginBase::name());
m_EnablePlayback = c->readBoolEntry("enable-playback", true);
m_EnableCapture = c->readBoolEntry("enable-capture", true);
m_BufferSize = c->readNumEntry ("buffer-size", 65536);
setDSPDeviceName (c->readEntry ("dsp-device", "/dev/dsp"));
setMixerDeviceName (c->readEntry ("mixer-device", "/dev/mixer"));
m_PlaybackBuffer.resize(m_BufferSize);
m_CaptureBuffer.resize(m_BufferSize);
setSoundStreamClientID(c->readEntry("soundstreamclient-id", getSoundStreamClientID()));
emit sigUpdateConfig();
}
void OSSSoundDevice::setMixerDeviceName(const TQString &dev_name)
{
if (m_MixerDeviceName != dev_name) {
m_MixerDeviceName = dev_name;
if (m_Mixer_fd >= 0)
openMixerDevice(true);
getMixerChannels(SOUND_MIXER_DEVMASK, m_PlaybackChannels, m_revPlaybackChannels);
getMixerChannels(SOUND_MIXER_RECMASK, m_CaptureChannels, m_revCaptureChannels);
notifyPlaybackChannelsChanged(m_SoundStreamClientID, m_PlaybackChannels);
notifyCaptureChannelsChanged(m_SoundStreamClientID, m_CaptureChannels);
}
}
ConfigPageInfo OSSSoundDevice::createConfigurationPage()
{
OSSSoundConfiguration *conf = new OSSSoundConfiguration(NULL, this);
TQObject::connect(this, TQT_SIGNAL(sigUpdateConfig()), conf, TQT_SLOT(slotUpdateConfig()));
return ConfigPageInfo (conf,
i18n("OSS Sound"),
i18n("OSS Sound Device Options"),
"tderadio_oss");
}
AboutPageInfo OSSSoundDevice::createAboutPage()
{
/* TDEAboutData aboutData("tderadio",
NULL,
NULL,
I18N_NOOP("OSS Sound Plugin for TDERadio"),
TDEAboutData::License_GPL,
"(c) 2004 Martin Witte",
0,
"http://sourceforge.net/projects/tderadio",
0);
aboutData.addAuthor("Martin Witte", "", "witte@kawo1.rwth-aachen.de");
return AboutPageInfo(
new TDERadioAboutWidget(aboutData, TDERadioAboutWidget::AbtTabbed),
i18n("OSS Sound"),
i18n("OSS Sound"),
"tderadio_oss_sound"
);
*/
return AboutPageInfo();
}
bool OSSSoundDevice::preparePlayback(SoundStreamID id, const TQString &channel, bool active_mode, bool start_immediately)
{
if (id.isValid() && m_revPlaybackChannels.contains(channel)) {
m_PlaybackStreams.insert(id, SoundStreamConfig(m_revPlaybackChannels[channel], active_mode));
if (start_immediately)
startPlayback(id);
return true;
// FIXME: what to do if stream is already playing?
}
return false;
}
bool OSSSoundDevice::prepareCapture(SoundStreamID id, const TQString &channel)
{
if (id.isValid() && m_revCaptureChannels.contains(channel)) {
m_CaptureStreams.insert(id, SoundStreamConfig(m_revCaptureChannels[channel]));
return true;
// FIXME: what to do if stream is already playing?
}
return false;
}
bool OSSSoundDevice::releasePlayback(SoundStreamID id)
{
if (id.isValid() && m_PlaybackStreams.contains(id)) {
if (m_PlaybackStreamID == id || m_PassivePlaybackStreams.contains(id)) {
stopPlayback(id);
}
m_PlaybackStreams.remove(id);
return true;
}
return false;
}
bool OSSSoundDevice::releaseCapture(SoundStreamID id)
{
if (id.isValid() && m_CaptureStreams.contains(id)) {
if (m_CaptureStreamID == id) {
stopCapture(id);
}
m_CaptureStreams.remove(id);
return true;
}
return false;
}
bool OSSSoundDevice::supportsPlayback() const
{
return m_EnablePlayback;
}
bool OSSSoundDevice::supportsCapture() const
{
return m_EnableCapture;
}
bool OSSSoundDevice::startPlayback(SoundStreamID id)
{
if (id.isValid() && m_PlaybackStreams.contains(id) && m_EnablePlayback) {
SoundStreamConfig &cfg = m_PlaybackStreams[id];
bool ok = false;
if (cfg.m_ActiveMode) {
if (!m_PlaybackStreamID.isValid()) {
m_PlaybackStreamID = id;
ok = true;
}
} else {
if (!m_PassivePlaybackStreams.contains(id))
m_PassivePlaybackStreams.append(id);
ok = true;
}
if (ok) {
openMixerDevice();
if (cfg.m_Volume >= 0)
writeMixerVolume(cfg.m_Channel, cfg.m_Volume);
}
// error handling?
return true;
} else {
return false;
}
}
bool OSSSoundDevice::pausePlayback(SoundStreamID /*id*/)
{
//return stopPlayback(id);
return false;
}
bool OSSSoundDevice::stopPlayback(SoundStreamID id)
{
if (id.isValid() && m_PlaybackStreams.contains(id)) {
SoundStreamConfig &cfg = m_PlaybackStreams[id];
if (!cfg.m_ActiveMode) {
if (m_PassivePlaybackStreams.contains(id)) {
// writeMixerVolume(cfg.m_Channel, 0);
m_PassivePlaybackStreams.remove(id);
}
} else if (m_PlaybackStreamID == id) {
m_PlaybackStreamID = SoundStreamID::InvalidID;
m_PlaybackBuffer.clear();
closeDSPDevice();
}
closeMixerDevice();
return true;
} else {
return false;
}
}
bool OSSSoundDevice::isPlaybackRunning(SoundStreamID id, bool &b) const
{
if (id.isValid() && m_PlaybackStreams.contains(id)) {
b = true;
return true;
} else {
return false;
}
}
bool OSSSoundDevice::startCaptureWithFormat(SoundStreamID id,
const SoundFormat &proposed_format,
SoundFormat &real_format,
bool force_format)
{
if (m_CaptureStreams.contains(id) && m_EnableCapture) {
if (m_CaptureStreamID != id) {
m_CapturePos = 0;
m_CaptureStartTime = time(NULL);
}
if (m_CaptureStreamID != id || force_format) {
m_CaptureStreamID = id;
SoundStreamConfig &cfg = m_CaptureStreams[id];
openMixerDevice();
selectCaptureChannel(cfg.m_Channel);
if (cfg.m_Volume >= 0)
writeMixerVolume(cfg.m_Channel, cfg.m_Volume);
openDSPDevice(proposed_format);
// FIXME: error handling?
}
real_format = m_DSPFormat;
m_CaptureRequestCounter++;
return true;
} else {
return false;
}
}
bool OSSSoundDevice::stopCapture(SoundStreamID id)
{
if (id.isValid() && m_CaptureStreamID == id) {
if (--m_CaptureRequestCounter == 0) {
m_CaptureStreamID = SoundStreamID::InvalidID;
m_CaptureBuffer.clear();
closeMixerDevice();
closeDSPDevice();
}
return true;
} else {
return false;
}
}
bool OSSSoundDevice::isCaptureRunning(SoundStreamID id, bool &b, SoundFormat &sf) const
{
if (id.isValid() && m_CaptureStreamID == id) {
b = true;
sf = m_DSPFormat;
return true;
} else {
return false;
}
}
bool OSSSoundDevice::noticeSoundStreamClosed(SoundStreamID id)
{
bool found = false;
if (m_PlaybackStreamID == id || m_PassivePlaybackStreams.contains(id)) {
stopPlayback(id);
found = true;
}
if (m_CaptureStreamID == id) {
stopCapture(id);
found = true;
}
m_PlaybackStreams.remove(id);
m_CaptureStreams.remove(id);
return found;
}
bool OSSSoundDevice::noticeSoundStreamRedirected(SoundStreamID oldID, SoundStreamID newID)
{
bool found = false;
if (m_PlaybackStreams.contains(oldID)) {
m_PlaybackStreams.insert(newID, m_PlaybackStreams[oldID]);
if (newID != oldID)
m_PlaybackStreams.remove(oldID);
found = true;
}
if (m_CaptureStreams.contains(oldID)) {
m_CaptureStreams.insert(newID, m_CaptureStreams[oldID]);
if (newID != oldID)
m_CaptureStreams.remove(oldID);
found = true;
}
if (m_PlaybackStreamID == oldID)
m_PlaybackStreamID = newID;
if (m_CaptureStreamID == oldID)
m_CaptureStreamID = newID;
if (m_PassivePlaybackStreams.contains(oldID)) {
m_PassivePlaybackStreams.remove(oldID);
m_PassivePlaybackStreams.append(newID);
}
return found;
}
bool OSSSoundDevice::noticeSoundStreamData(SoundStreamID id,
const SoundFormat &format,
const char *data, size_t size, size_t &consumed_size,
const SoundMetaData &/*md*/
)
{
if (!id.isValid() || id != m_PlaybackStreamID)
return false;
if (m_DSP_fd < 0) {
openDSPDevice(format);
} else if (format != m_DSPFormat) {
if (m_CaptureStreamID.isValid())
return false;
// flush playback buffer
size_t buffersize = 0;
char *buffer = m_PlaybackBuffer.getData(buffersize);
write(m_DSP_fd, buffer, buffersize);
// if not all could be written, it must be discarded
m_PlaybackBuffer.clear();
closeDSPDevice();
openDSPDevice(format);
// error handling ?
}
size_t n = m_PlaybackBuffer.addData(data, size);
consumed_size = (consumed_size == SIZE_T_DONT_CARE) ? n : min(consumed_size, n);
// if (n < size) {
// m_PlaybackSkipCount += size - n;
// } else if (m_PlaybackSkipCount > 0) {
// logWarning(i18n("%1: Playback buffer overflow. Skipped %1 bytes").arg(m_DSPDeviceName).arg(TQString::number(m_PlaybackSkipCount)));
// m_PlaybackSkipCount = 0;
// }
return true; //m_PlaybackSkipCount == 0;
}
void OSSSoundDevice::slotPoll()
{
int err = 0;
if (m_CaptureStreamID.isValid() && m_DSP_fd >= 0) {
size_t bufferSize = 0;
char *buffer = m_CaptureBuffer.getFreeSpace(bufferSize);
int bytesRead = read(m_DSP_fd, buffer, bufferSize);
if (bytesRead > 0) {
m_CaptureBuffer.removeFreeSpace(bytesRead);
} else if (bytesRead < 0 && errno == EAGAIN) {
bytesRead = 0;
} else if (bytesRead == 0) {
err = -1;
logError(i18n("OSS device %1: No data to record").arg(m_DSPDeviceName));
} else {
err = errno;
}
while (m_CaptureBuffer.getFillSize() > m_CaptureBuffer.getSize() / 3) {
size_t size = 0;
buffer = m_CaptureBuffer.getData(size);
time_t cur_time = time(NULL);
size_t consumed_size = SIZE_T_DONT_CARE;
notifySoundStreamData(m_CaptureStreamID, m_DSPFormat, buffer, size, consumed_size, SoundMetaData(m_CapturePos, cur_time - m_CaptureStartTime, cur_time, i18n("internal stream, not stored (%1)").arg(m_DSPDeviceName)));
if (consumed_size == SIZE_T_DONT_CARE)
consumed_size = size;
m_CaptureBuffer.removeData(consumed_size);
m_CapturePos += consumed_size;
if (consumed_size < size)
break;
}
}
if (m_PlaybackStreamID.isValid()/* && m_DSP_fd >= 0*/) {
if (m_PlaybackBuffer.getFillSize() > 0 && m_DSP_fd >= 0) {
size_t buffersize = 0;
char *buffer = m_PlaybackBuffer.getData(buffersize);
int bytesWritten = write(m_DSP_fd, buffer, buffersize);
if (bytesWritten > 0) {
m_PlaybackBuffer.removeData(bytesWritten);
} else if (bytesWritten < 0 && errno == EAGAIN) {
bytesWritten = 0;
} else {
err = errno;
}
}
if (m_PlaybackBuffer.getFreeSize() > 0)
notifyReadyForPlaybackData(m_PlaybackStreamID, m_PlaybackBuffer.getFreeSize());
}
if (err) {
logError(i18n("Error %1 while handling OSS device %2").arg(TQString().setNum(err)).arg(m_DSPDeviceName));
}
if (m_PlaybackStreamID.isValid())
checkMixerVolume(m_PlaybackStreamID);
if (m_CaptureStreamID.isValid())
checkMixerVolume(m_CaptureStreamID);
TQValueListConstIterator<SoundStreamID> end = m_PassivePlaybackStreams.end();
for (TQValueListConstIterator<SoundStreamID> it = m_PassivePlaybackStreams.begin(); it != end; ++it)
checkMixerVolume(*it);
}
bool OSSSoundDevice::openDSPDevice(const SoundFormat &format, bool reopen)
{
if (m_DSP_fd >= 0) {
if (reopen) {
closeDSPDevice ( /* force = */ true);
} else {
if (format != m_DSPFormat)
return false;
if (m_DuplexMode != DUPLEX_FULL && m_CaptureStreamID.isValid() && m_PlaybackStreamID.isValid())
return false;
return true;
}
} else {
if (reopen)
return true;
}
m_DSPFormat = format;
// first testopen for CAPS
m_DSP_fd = open(m_DSPDeviceName.ascii(), O_NONBLOCK | O_RDONLY);
bool err = m_DSP_fd < 0;
if (err) {
logError(i18n("Cannot open DSP device %1").arg(m_DSPDeviceName));
return false;
}
int caps = 0;
err |= (ioctl (m_DSP_fd, SNDCTL_DSP_GETCAPS, &caps) != 0);
if (err)
logError(i18n("Cannot read DSP capabilities for %1").arg(m_DSPDeviceName));
m_DuplexMode = (caps & DSP_CAP_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF;
close (m_DSP_fd);
m_DSP_fd = -1;
// opening and seeting up the device file
int mode = O_NONBLOCK;
if (m_DuplexMode == DUPLEX_FULL) {
mode |= O_RDWR;
} else if (m_CaptureStreamID.isValid()) {
mode |= O_RDONLY;
} else {
mode |= O_WRONLY;
}
m_DSP_fd = open(m_DSPDeviceName.ascii(), mode);
err = m_DSP_fd < 0;
if (err) {
logError(i18n("Cannot open DSP device %1").arg(m_DSPDeviceName));
return false;
}
int oss_format = getOSSFormat(m_DSPFormat);
err |= (ioctl(m_DSP_fd, SNDCTL_DSP_SETFMT, &oss_format) != 0);
if (err)
logError(i18n("Cannot set DSP sample format for %1").arg(m_DSPDeviceName));
int channels = m_DSPFormat.m_Channels;
err |= (ioctl(m_DSP_fd, SNDCTL_DSP_CHANNELS, &channels) != 0);
if (err)
logError(i18n("Cannot set number of channels for %1").arg(m_DSPDeviceName));
int rate = m_DSPFormat.m_SampleRate;
err |= (ioctl(m_DSP_fd, SNDCTL_DSP_SPEED, &rate) != 0);
if (err)
logError(i18n("Cannot set sampling rate for %1").arg(m_DSPDeviceName));
if (rate != (int)m_DSPFormat.m_SampleRate) {
logWarning(i18n("Asking for %1 Hz but %2 uses %3 Hz").
arg(TQString::number(m_DSPFormat.m_SampleRate)).
arg(m_DSPDeviceName).
arg(TQString::number(rate)));
m_DSPFormat.m_SampleRate = rate;
}
int stereo = m_DSPFormat.m_Channels == 2;
err |= (ioctl(m_DSP_fd, SNDCTL_DSP_STEREO, &stereo) != 0);
if (err)
logError(i18n("Cannot set stereo mode for %1").arg(m_DSPDeviceName));
unsigned sampleSize = m_DSPFormat.m_SampleBits;
err |= (ioctl(m_DSP_fd, SNDCTL_DSP_SAMPLESIZE, &sampleSize) != 0);
if (err || sampleSize != m_DSPFormat.m_SampleBits)
logError(i18n("Cannot set sample size for %1").arg(m_DSPDeviceName));
// setup buffer, ask for 40ms latency
int tmp = (400 * m_DSPFormat.frameSize() * m_DSPFormat.m_SampleRate) / 1000;
int mask = -1; for (; tmp; tmp >>= 1) ++mask;
if (mask < 8) mask = 12; // default 4kB
mask |= 0x7FFF0000;
err |= ioctl (m_DSP_fd, SNDCTL_DSP_SETFRAGMENT, &mask);
if (err)
logError(i18n("Cannot set buffers for %1").arg(m_DSPDeviceName));
int bufferBlockSize = 0;
err |= ioctl (m_DSP_fd, SNDCTL_DSP_GETBLKSIZE, &bufferBlockSize);
if (err) {
logError(i18n("Cannot read buffer size for %1").arg(m_DSPDeviceName));
} else {
logInfo(i18n("%1 uses buffer blocks of %2 bytes").arg(m_DSPDeviceName).arg(TQString::number(bufferBlockSize)));
size_t tmp = (((m_BufferSize - 1) / bufferBlockSize) + 1) * bufferBlockSize;
setBufferSize(tmp);
logInfo(i18n("adjusted own buffer size to %1 bytes").arg(TQString::number(tmp)));
}
int trigger = ~PCM_ENABLE_INPUT & ~PCM_ENABLE_OUTPUT;
ioctl(m_DSP_fd, SNDCTL_DSP_SETTRIGGER, &trigger);
trigger = PCM_ENABLE_INPUT | PCM_ENABLE_OUTPUT;
ioctl(m_DSP_fd, SNDCTL_DSP_SETTRIGGER, &trigger);
if (!err) {
m_PollingTimer.start(40);
} else {
closeDSPDevice();
}
m_CaptureSkipCount = 0;
//m_PlaybackSkipCount = 0;
return !err;
}
bool OSSSoundDevice::closeDSPDevice(bool force)
{
if ((!m_PlaybackStreamID.isValid() && !m_CaptureStreamID.isValid()) || force) {
if (m_Mixer_fd < 0)
m_PollingTimer.stop();
if (m_DSP_fd >= 0)
close (m_DSP_fd);
m_DSP_fd = -1;
m_PlaybackBuffer.clear();
m_CaptureBuffer.clear();
}
return true;
}
bool OSSSoundDevice::openMixerDevice(bool reopen)
{
if (reopen) {
if (m_Mixer_fd >= 0)
closeMixerDevice(/* force = */ true);
else
return true;
}
if (m_Mixer_fd < 0)
m_Mixer_fd = open(m_MixerDeviceName.ascii(), O_RDONLY);
if (m_Mixer_fd < 0) {
logError(i18n("Cannot open mixer device %1").arg(m_MixerDeviceName));
} else {
m_PollingTimer.start(40);
}
return m_Mixer_fd >= 0;
}
bool OSSSoundDevice::closeMixerDevice(bool force)
{
if ((!m_PlaybackStreamID.isValid() && !m_CaptureStreamID.isValid()) || force) {
if (m_DSP_fd < 0)
m_PollingTimer.stop();
if (m_Mixer_fd >= 0)
close (m_Mixer_fd);
m_Mixer_fd = -1;
}
return m_Mixer_fd < 0;
}
void OSSSoundDevice::getMixerChannels(int query, TQStringList &retval, TQMap<TQString, int> &revmap) const
{
retval.clear();
revmap.clear();
int fd = m_Mixer_fd;
if (fd < 0)
fd = open(m_MixerDeviceName.ascii(), O_RDONLY);
if (fd < 0) {
logError(i18n("OSSSoundDevice::getMixerChannels: Cannot open mixer device %1").arg(m_MixerDeviceName));
}
if (fd >= 0) {
int mask = 0;
if ( ioctl(fd, MIXER_READ(query), &mask) == 0 ) {
for (int i = 0; i < SOUND_MIXER_NRDEVICES; ++i) {
if (mask & (1 << i)) {
static const char *labels[] = SOUND_DEVICE_LABELS;
retval.append(i18n(labels[i]));
revmap.insert(i18n(labels[i]), i);
}
}
} else {
logError(i18n("OSSSoundDevice::getMixerChannels: Cannot read mixer device mask on device %1").arg(m_MixerDeviceName));
}
}
if (fd != m_Mixer_fd)
close(fd);
}
const TQStringList &OSSSoundDevice::getPlaybackChannels() const
{
return m_PlaybackChannels;
}
const TQStringList &OSSSoundDevice::getCaptureChannels() const
{
return m_CaptureChannels;
}
bool OSSSoundDevice::setPlaybackVolume(SoundStreamID id, float volume)
{
if (id.isValid() && (m_PlaybackStreamID == id || m_PassivePlaybackStreams.contains(id))) {
SoundStreamConfig &cfg = m_PlaybackStreams[id];
if (rint(100*volume) != rint(100*cfg.m_Volume)) {
cfg.m_Volume = writeMixerVolume(cfg.m_Channel, volume);
notifyPlaybackVolumeChanged(id, cfg.m_Volume);
}
return true;
}
return false;
}
bool OSSSoundDevice::setCaptureVolume(SoundStreamID id, float volume)
{
if (id.isValid() && m_CaptureStreamID == id) {
SoundStreamConfig &cfg = m_CaptureStreams[id];
if (rint(100*volume) != rint(100*cfg.m_Volume)) {
cfg.m_Volume = writeMixerVolume(cfg.m_Channel, volume);
notifyCaptureVolumeChanged(id, cfg.m_Volume);
}
return true;
}
return false;
}
bool OSSSoundDevice::getPlaybackVolume(SoundStreamID id, float &volume) const
{
if (id.isValid() && (m_PlaybackStreamID == id || m_PassivePlaybackStreams.contains(id))) {
const SoundStreamConfig &cfg = m_PlaybackStreams[id];
volume = cfg.m_Volume;
return true;
}
return false;
}
bool OSSSoundDevice::getCaptureVolume(SoundStreamID id, float &volume) const
{
if (id.isValid() && m_CaptureStreamID == id) {
const SoundStreamConfig &cfg = m_CaptureStreams[id];
volume = cfg.m_Volume;
return true;
}
return false;
}
void OSSSoundDevice::checkMixerVolume(SoundStreamID id)
{
if (m_Mixer_fd >= 0 && id.isValid()) {
if (m_PassivePlaybackStreams.contains(id) || m_PlaybackStreamID == id) {
SoundStreamConfig &cfg = m_PlaybackStreams[id];
float v = readMixerVolume(cfg.m_Channel);
if (rint(100*cfg.m_Volume) != rint(100*v)) {
cfg.m_Volume = v;
notifyPlaybackVolumeChanged(id, v);
}
}
if (m_CaptureStreamID == id) {
SoundStreamConfig &cfg = m_CaptureStreams[id];
float v = readMixerVolume(cfg.m_Channel);
if (rint(100*cfg.m_Volume) != rint(100*v)) {
cfg.m_Volume = v;
notifyCaptureVolumeChanged(id, v);
}
}
}
}
float OSSSoundDevice::readMixerVolume(int channel) const
{
_lrvol tmpvol;
int err = ioctl(m_Mixer_fd, MIXER_READ(channel), &tmpvol);
if (err) {
logError("OSSSound::readMixerVolume: " +
i18n("error %1 while reading volume from %2")
.arg(TQString().setNum(err))
.arg(m_MixerDeviceName));
tmpvol.l = tmpvol.r = 0;
}
return float(tmpvol.l) / 100.0;
}
float OSSSoundDevice::writeMixerVolume (int channel, float vol)
{
if (vol > 1.0) vol = 1.0;
if (vol < 0) vol = 0.0;
const int divs = 100;
vol = rint(vol * divs) / float(divs);
if (m_Mixer_fd >= 0) {
_lrvol tmpvol;
tmpvol.r = tmpvol.l = (unsigned int)(rint(vol * divs));
int err = ioctl(m_Mixer_fd, MIXER_WRITE(channel), &tmpvol);
if (err != 0) {
logError("OSSSoundDevice::writeMixerVolume: " +
i18n("error %1 while setting volume to %2 on device %3")
.arg(TQString().setNum(err))
.arg(TQString().setNum(vol))
.arg(m_MixerDeviceName));
return -1;
}
}
return vol;
}
void OSSSoundDevice::selectCaptureChannel (int channel)
{
int x = 1 << channel;
int err = ioctl(m_Mixer_fd, SOUND_MIXER_WRITE_RECSRC, &x);
if (err)
logError(i18n("Selecting recording source on device %1 failed with error code %2")
.arg(m_MixerDeviceName)
.arg(TQString::number(err)));
_lrvol tmpvol;
err = ioctl(m_Mixer_fd, MIXER_READ(SOUND_MIXER_IGAIN), &tmpvol);
if (err)
logError(i18n("Reading igain volume on device %1 failed with error code %2")
.arg(m_MixerDeviceName)
.arg(TQString::number(err)));
if (tmpvol.r == 0 && tmpvol.l == 0) {
tmpvol.r = tmpvol.l = 1;
err = ioctl(m_Mixer_fd, MIXER_WRITE(SOUND_MIXER_IGAIN), &tmpvol);
if (err)
logError(i18n("Setting igain volume on device %1 failed with error code %2")
.arg(m_MixerDeviceName)
.arg(TQString::number(err)));
}
}
int OSSSoundDevice::getOSSFormat(const SoundFormat &f)
{
if (f.m_SampleBits == 16) {
switch (2 * f.m_IsSigned + (f.m_Endianess == LITTLE_ENDIAN)) {
case 0: return AFMT_U16_BE;
case 1: return AFMT_U16_LE;
case 2: return AFMT_S16_BE;
case 3: return AFMT_S16_LE;
}
}
if (f.m_SampleBits == 8) {
switch (f.m_IsSigned) {
case 0: return AFMT_U8;
case 1: return AFMT_S8;
}
}
return 0;
}
void OSSSoundDevice::setBufferSize(int s)
{
m_BufferSize = s;
m_PlaybackBuffer.resize(m_BufferSize);
m_CaptureBuffer.resize(m_BufferSize);
}
void OSSSoundDevice::enablePlayback(bool on)
{
m_EnablePlayback = on;
}
void OSSSoundDevice::enableCapture(bool on)
{
m_EnableCapture = on;
}
void OSSSoundDevice::setDSPDeviceName(const TQString &s)
{
m_DSPDeviceName = s;
SoundFormat f = m_DSPFormat;
if (m_DSP_fd >= 0)
openDSPDevice(f, /* reopen = */ true);
}
TQString OSSSoundDevice::getSoundStreamClientDescription() const
{
return i18n("OSS Sound Device %1").arg(PluginBase::name());
}
#include "oss-sound.moc"
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