slapin/qtmultimedia
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Files
dcbbad869e28a398a880608ff634c6dd4241a7ef
qtmultimedia/src/multimedia/audio/qsoundeffect_pulse_p.cpp
Iikka Eklund dcbbad869e Change copyrights from Nokia to Digia 
Change copyrights and license headers from Nokia to Digia

Change-Id: Id77334cfb15de096941c88e32d04ca07b4eb4709
Reviewed-by: Janne Anttila <janne.anttila@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2012-09-24 09:05:51 +02:00

1155 lines
34 KiB
C++
Raw Blame History

/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// INTERNAL USE ONLY: Do NOT use for any other purpose.
//
#include <QtCore/qcoreapplication.h>
#include <qaudioformat.h>
#include <QtNetwork>
#include <QTime>
#include "qsoundeffect_pulse_p.h"
#if defined(Q_WS_MAEMO_6)
#include <pulse/ext-stream-restore.h>
#endif
#include <unistd.h>
//#define QT_PA_DEBUG
#ifndef QTM_PULSEAUDIO_DEFAULTBUFFER
#define QT_PA_STREAM_BUFFER_SIZE_MAX (1024 * 64) //64KB is a trade-off for balancing control latency and uploading overhead
#endif
QT_BEGIN_NAMESPACE
namespace
{
inline pa_sample_spec audioFormatToSampleSpec(const QAudioFormat &format)
{
pa_sample_spec spec;
spec.rate = format.sampleRate();
spec.channels = format.channelCount();
if (format.sampleSize() == 8)
spec.format = PA_SAMPLE_U8;
else if (format.sampleSize() == 16) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S16BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S16LE; break;
}
}
else if (format.sampleSize() == 32) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S32BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S32LE; break;
}
}
return spec;
}
class PulseDaemon : public QObject
{
Q_OBJECT
public:
PulseDaemon(): m_prepared(false)
{
prepare();
}
~PulseDaemon()
{
if (m_prepared)
release();
}
inline void lock()
{
if (m_mainLoop)
pa_threaded_mainloop_lock(m_mainLoop);
}
inline void unlock()
{
if (m_mainLoop)
pa_threaded_mainloop_unlock(m_mainLoop);
}
inline pa_context *context() const
{
return m_context;
}
inline pa_cvolume * calcVolume(pa_cvolume *dest, int soundEffectVolume)
{
pa_volume_t v = m_vol * soundEffectVolume / 100;
for (int i = 0; i < dest->channels; ++i)
dest->values[i] = v;
return dest;
}
void updateStatus(const pa_cvolume& volume)
{
if (m_vol != pa_cvolume_max(&volume)) {
m_vol = pa_cvolume_max(&volume);
emit volumeChanged();
}
}
Q_SIGNALS:
void contextReady();
void volumeChanged();
private:
void prepare()
{
m_vol = PA_VOLUME_NORM;
m_context = 0;
m_mainLoop = pa_threaded_mainloop_new();
if (m_mainLoop == 0) {
qWarning("PulseAudioService: unable to create pulseaudio mainloop");
return;
}
if (pa_threaded_mainloop_start(m_mainLoop) != 0) {
qWarning("PulseAudioService: unable to start pulseaudio mainloop");
pa_threaded_mainloop_free(m_mainLoop);
return;
}
m_mainLoopApi = pa_threaded_mainloop_get_api(m_mainLoop);
lock();
m_context = pa_context_new(m_mainLoopApi, QString(QLatin1String("QtPulseAudio:%1")).arg(::getpid()).toLatin1().constData());
pa_context_set_state_callback(m_context, context_state_callback, this);
if (m_context == 0) {
qWarning("PulseAudioService: Unable to create new pulseaudio context");
pa_threaded_mainloop_unlock(m_mainLoop);
pa_threaded_mainloop_free(m_mainLoop);
m_mainLoop = 0;
return;
}
if (pa_context_connect(m_context, 0, (pa_context_flags_t)0, 0) < 0) {
qWarning("PulseAudioService: pa_context_connect() failed");
pa_context_unref(m_context);
pa_threaded_mainloop_unlock(m_mainLoop);
pa_threaded_mainloop_free(m_mainLoop);
m_mainLoop = 0;
m_context = 0;
return;
}
unlock();
m_prepared = true;
}
void release()
{
if (!m_prepared) return;
pa_context_unref(m_context);
pa_threaded_mainloop_stop(m_mainLoop);
pa_threaded_mainloop_free(m_mainLoop);
m_prepared = false;
}
static void context_state_callback(pa_context *c, void *userdata)
{
PulseDaemon *self = reinterpret_cast<PulseDaemon*>(userdata);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY:
#if defined(Q_WS_MAEMO_6)
pa_ext_stream_restore_read(c, &stream_restore_info_callback, self);
pa_ext_stream_restore_set_subscribe_cb(c, &stream_restore_monitor_callback, self);
pa_ext_stream_restore_subscribe(c, 1, 0, self);
#endif
QMetaObject::invokeMethod(self, "contextReady", Qt::QueuedConnection);
break;
default:
break;
}
}
#if defined(Q_WS_MAEMO_6)
static void stream_restore_monitor_callback(pa_context *c, void *userdata)
{
PulseDaemon *self = reinterpret_cast<PulseDaemon*>(userdata);
pa_ext_stream_restore_read(c, &stream_restore_info_callback, self);
}
static void stream_restore_info_callback(pa_context *c,
const pa_ext_stream_restore_info *info,
int eol, void *userdata)
{
Q_UNUSED(c)
PulseDaemon *self = reinterpret_cast<PulseDaemon*>(userdata);
if (!eol) {
if (QString(info->name).startsWith(QLatin1String("sink-input-by-media-role:x-maemo"))) {
#ifdef QT_PA_DEBUG
qDebug() << "x-maemo volume =(" << info->volume.values[0] * 100 / PA_VOLUME_NORM << ","
<< info->volume.values[1] * 100 / PA_VOLUME_NORM << "), "
<< "mute = " << info->mute;
#endif
self->updateStatus(info->volume);
}
}
}
#endif
pa_volume_t m_vol;
bool m_prepared;
pa_context *m_context;
pa_threaded_mainloop *m_mainLoop;
pa_mainloop_api *m_mainLoopApi;
};
}
Q_GLOBAL_STATIC(PulseDaemon, pulseDaemon)
Q_GLOBAL_STATIC(QSampleCache, sampleCache)
namespace
{
class PulseDaemonLocker
{
public:
PulseDaemonLocker()
{
pulseDaemon()->lock();
}
~PulseDaemonLocker()
{
pulseDaemon()->unlock();
}
};
}
class QSoundEffectRef
{
public:
QSoundEffectRef(QSoundEffectPrivate *target)
: m_ref(1)
, m_target(target)
{
#ifdef QT_PA_DEBUG
qDebug() << "QSoundEffectRef(" << this << ") ctor";
#endif
}
QSoundEffectRef *getRef()
{
#ifdef QT_PA_DEBUG
qDebug() << "QSoundEffectRef(" << this << ") getRef";
#endif
QMutexLocker locker(&m_mutex);
m_ref++;
return this;
}
void release()
{
#ifdef QT_PA_DEBUG
qDebug() << "QSoundEffectRef(" << this << ") Release";
#endif
m_mutex.lock();
--m_ref;
if (m_ref == 0) {
m_mutex.unlock();
#ifdef QT_PA_DEBUG
qDebug() << "QSoundEffectRef(" << this << ") deleted";
#endif
delete this;
return;
}
m_mutex.unlock();
}
QSoundEffectPrivate* soundEffect() const
{
QMutexLocker locker(&m_mutex);
return m_target;
}
void notifyDeleted()
{
#ifdef QT_PA_DEBUG
qDebug() << "QSoundEffectRef(" << this << ") notifyDeleted";
#endif
QMutexLocker locker(&m_mutex);
m_target = NULL;
}
private:
int m_ref;
mutable QMutex m_mutex;
QSoundEffectPrivate *m_target;
};
QSoundEffectPrivate::QSoundEffectPrivate(QObject* parent):
QObject(parent),
m_pulseStream(0),
m_sinkInputId(-1),
m_emptying(false),
m_sampleReady(false),
m_playing(false),
m_status(QSoundEffect::Null),
m_muted(false),
m_playQueued(false),
m_stopping(false),
m_volume(100),
m_loopCount(1),
m_runningCount(0),
m_reloadCategory(false),
m_sample(0),
m_position(0)
{
m_ref = new QSoundEffectRef(this);
pa_sample_spec_init(&m_pulseSpec);
}
void QSoundEffectPrivate::release()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "release";
#endif
m_ref->notifyDeleted();
unloadPulseStream();
if (m_sample) {
m_sample->release();
m_sample = 0;
}
this->deleteLater();
}
QString QSoundEffectPrivate::category() const
{
return m_category;
}
void QSoundEffectPrivate::setCategory(const QString &category)
{
if (m_category != category) {
m_category = category;
if (m_playing || m_playQueued) {
// Currently playing, we need to disconnect when
// playback stops
m_reloadCategory = true;
} else if (m_pulseStream) {
// We have to disconnect and reconnect
unloadPulseStream();
createPulseStream();
} else {
// Well, next time we create the pulse stream
// it should be set
}
emit categoryChanged();
}
}
QSoundEffectPrivate::~QSoundEffectPrivate()
{
m_ref->release();
}
QStringList QSoundEffectPrivate::supportedMimeTypes()
{
QStringList supportedTypes;
supportedTypes << QLatin1String("audio/x-wav") << QLatin1String("audio/vnd.wave") ;
return supportedTypes;
}
QUrl QSoundEffectPrivate::source() const
{
return m_source;
}
void QSoundEffectPrivate::setSource(const QUrl &url)
{
Q_ASSERT(m_source != url);
#ifdef QT_PA_DEBUG
qDebug() << this << "setSource =" << url;
#endif
stop();
if (m_sample) {
if (!m_sampleReady) {
disconnect(m_sample, SIGNAL(error()), this, SLOT(decoderError()));
disconnect(m_sample, SIGNAL(ready()), this, SLOT(sampleReady()));
}
m_sample->release();
m_sample = 0;
}
m_source = url;
m_sampleReady = false;
PulseDaemonLocker locker;
setLoopsRemaining(0);
if (m_pulseStream && !pa_stream_is_corked(m_pulseStream)) {
pa_stream_set_write_callback(m_pulseStream, 0, 0);
pa_stream_set_underflow_callback(m_pulseStream, 0, 0);
pa_operation_unref(pa_stream_cork(m_pulseStream, 1, 0, 0));
}
setPlaying(false);
if (url.isEmpty()) {
setStatus(QSoundEffect::Null);
return;
}
setStatus(QSoundEffect::Loading);
m_sample = sampleCache()->requestSample(url);
connect(m_sample, SIGNAL(error()), this, SLOT(decoderError()));
connect(m_sample, SIGNAL(ready()), this, SLOT(sampleReady()));
switch(m_sample->state()) {
case QSample::Ready:
sampleReady();
break;
case QSample::Error:
decoderError();
break;
default:
break;
}
}
int QSoundEffectPrivate::loopCount() const
{
return m_loopCount;
}
int QSoundEffectPrivate::loopsRemaining() const
{
return m_runningCount;
}
void QSoundEffectPrivate::setLoopCount(int loopCount)
{
if (loopCount == 0)
loopCount = 1;
m_loopCount = loopCount;
}
int QSoundEffectPrivate::volume() const
{
return m_volume;
}
void QSoundEffectPrivate::setVolume(int volume)
{
m_volume = volume;
emit volumeChanged();
updateVolume();
}
void QSoundEffectPrivate::updateVolume()
{
if (m_sinkInputId < 0)
return;
PulseDaemonLocker locker;
pa_cvolume volume;
volume.channels = m_pulseSpec.channels;
pa_operation_unref(pa_context_set_sink_input_volume(pulseDaemon()->context(), m_sinkInputId, pulseDaemon()->calcVolume(&volume, m_volume), setvolume_callback, m_ref->getRef()));
Q_ASSERT(pa_cvolume_valid(&volume));
#ifdef QT_PA_DEBUG
qDebug() << this << "updateVolume =" << pa_cvolume_max(&volume);
#endif
}
bool QSoundEffectPrivate::isMuted() const
{
return m_muted;
}
void QSoundEffectPrivate::setMuted(bool muted)
{
m_muted = muted;
emit mutedChanged();
updateMuted();
}
void QSoundEffectPrivate::updateMuted()
{
if (m_sinkInputId < 0)
return;
PulseDaemonLocker locker;
pa_operation_unref(pa_context_set_sink_input_mute(pulseDaemon()->context(), m_sinkInputId, m_muted, setmuted_callback, m_ref->getRef()));
#ifdef QT_PA_DEBUG
qDebug() << this << "updateMuted = " << m_muted;
#endif
}
bool QSoundEffectPrivate::isLoaded() const
{
return m_status == QSoundEffect::Ready;
}
bool QSoundEffectPrivate::isPlaying() const
{
return m_playing;
}
QSoundEffect::Status QSoundEffectPrivate::status() const
{
return m_status;
}
void QSoundEffectPrivate::setPlaying(bool playing)
{
#ifdef QT_PA_DEBUG
qDebug() << this << "setPlaying(" << playing << ")";
#endif
if (m_playing == playing)
return;
if (!playing)
m_playQueued = false;
m_playing = playing;
emit playingChanged();
}
void QSoundEffectPrivate::setStatus(QSoundEffect::Status status)
{
#ifdef QT_PA_DEBUG
qDebug() << this << "setStatus" << status;
#endif
if (m_status == status)
return;
bool oldLoaded = isLoaded();
m_status = status;
emit statusChanged();
if (oldLoaded != isLoaded())
emit loadedChanged();
}
void QSoundEffectPrivate::setLoopsRemaining(int loopsRemaining)
{
#ifdef QT_PA_DEBUG
qDebug() << this << "setLoopsRemaining " << loopsRemaining;
#endif
if (m_runningCount == loopsRemaining)
return;
m_runningCount = loopsRemaining;
emit loopsRemainingChanged();
}
void QSoundEffectPrivate::play()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "play";
#endif
if (m_status == QSoundEffect::Null || m_status == QSoundEffect::Error || m_playQueued)
return;
PulseDaemonLocker locker;
if (!m_pulseStream || m_status != QSoundEffect::Ready || m_stopping || m_emptying) {
#ifdef QT_PA_DEBUG
qDebug() << this << "play deferred";
#endif
m_playQueued = true;
} else {
if (m_playing) { //restart playing from the beginning
#ifdef QT_PA_DEBUG
qDebug() << this << "restart playing";
#endif
setLoopsRemaining(0);
m_playQueued = true;
Q_ASSERT(m_pulseStream);
emptyStream();
return;
}
m_runningCount = m_loopCount;
playSample();
}
setPlaying(true);
}
void QSoundEffectPrivate::emptyStream()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "emptyStream";
#endif
m_emptying = true;
pa_stream_set_write_callback(m_pulseStream, 0, 0);
pa_stream_set_underflow_callback(m_pulseStream, 0, 0);
pa_operation_unref(pa_stream_flush(m_pulseStream, stream_flush_callback, m_ref->getRef()));
}
void QSoundEffectPrivate::emptyComplete(void *stream)
{
PulseDaemonLocker locker;
#ifdef QT_PA_DEBUG
qDebug() << this << "emptyComplete";
#endif
m_emptying = false;
if ((pa_stream *)stream == m_pulseStream)
pa_operation_unref(pa_stream_cork(m_pulseStream, 1, stream_cork_callback, m_ref->getRef()));
}
void QSoundEffectPrivate::sampleReady()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "sampleReady";
#endif
disconnect(m_sample, SIGNAL(error()), this, SLOT(decoderError()));
disconnect(m_sample, SIGNAL(ready()), this, SLOT(sampleReady()));
pa_sample_spec newFormatSpec = audioFormatToSampleSpec(m_sample->format());
if (m_pulseStream && !pa_sample_spec_equal(&m_pulseSpec, &newFormatSpec)) {
unloadPulseStream();
}
m_pulseSpec = newFormatSpec;
m_sampleReady = true;
m_position = 0;
if (m_name.isNull())
m_name = QString(QLatin1String("QtPulseSample-%1-%2")).arg(::getpid()).arg(quintptr(this)).toUtf8();
PulseDaemonLocker locker;
if (m_pulseStream) {
#ifdef QT_PA_DEBUG
qDebug() << this << "reuse existing pulsestream";
#endif
#ifdef QTM_PULSEAUDIO_DEFAULTBUFFER
const pa_buffer_attr *bufferAttr = pa_stream_get_buffer_attr(m_pulseStream);
if (bufferAttr->prebuf > uint32_t(m_sample->data().size())) {
pa_buffer_attr newBufferAttr;
newBufferAttr = *bufferAttr;
newBufferAttr.prebuf = m_sample->data().size();
pa_operation_unref(pa_stream_set_buffer_attr(m_pulseStream, &newBufferAttr, stream_adjust_prebuffer_callback, m_ref->getRef()));
} else {
streamReady();
}
#else
const pa_buffer_attr *bufferAttr = pa_stream_get_buffer_attr(m_pulseStream);
if (bufferAttr->tlength < m_sample->data().size() && bufferAttr->tlength < QT_PA_STREAM_BUFFER_SIZE_MAX) {
pa_buffer_attr newBufferAttr;
newBufferAttr.maxlength = -1;
newBufferAttr.tlength = qMin(m_sample->data().size(), QT_PA_STREAM_BUFFER_SIZE_MAX);
newBufferAttr.minreq = bufferAttr->tlength / 2;
newBufferAttr.prebuf = -1;
newBufferAttr.fragsize = -1;
pa_operation_unref(pa_stream_set_buffer_attr(m_pulseStream, &newBufferAttr, stream_reset_buffer_callback, m_ref->getRef()));
} else if (bufferAttr->prebuf > uint32_t(m_sample->data().size())) {
pa_buffer_attr newBufferAttr;
newBufferAttr = *bufferAttr;
newBufferAttr.prebuf = m_sample->data().size();
pa_operation_unref(pa_stream_set_buffer_attr(m_pulseStream, &newBufferAttr, stream_adjust_prebuffer_callback, m_ref->getRef()));
} else {
streamReady();
}
#endif
} else {
if (pa_context_get_state(pulseDaemon()->context()) != PA_CONTEXT_READY) {
connect(pulseDaemon(), SIGNAL(contextReady()), SLOT(contextReady()));
return;
}
createPulseStream();
}
}
void QSoundEffectPrivate::decoderError()
{
qWarning("QSoundEffect(pulseaudio): Error decoding source");
disconnect(m_sample, SIGNAL(error()), this, SLOT(decoderError()));
bool playingDirty = false;
if (m_playing) {
m_playing = false;
playingDirty = true;
}
setStatus(QSoundEffect::Error);
if (playingDirty)
emit playingChanged();
}
void QSoundEffectPrivate::unloadPulseStream()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "unloadPulseStream";
#endif
m_sinkInputId = -1;
PulseDaemonLocker locker;
if (m_pulseStream) {
pa_stream_set_state_callback(m_pulseStream, 0, 0);
pa_stream_set_write_callback(m_pulseStream, 0, 0);
pa_stream_set_underflow_callback(m_pulseStream, 0, 0);
pa_stream_disconnect(m_pulseStream);
pa_stream_unref(m_pulseStream);
disconnect(pulseDaemon(), SIGNAL(volumeChanged()), this, SLOT(updateVolume()));
m_pulseStream = 0;
m_reloadCategory = false; // category will be reloaded when we connect anyway
}
}
void QSoundEffectPrivate::prepare()
{
if (!m_pulseStream || !m_sampleReady)
return;
PulseDaemonLocker locker;
pa_stream_set_write_callback(m_pulseStream, stream_write_callback, this);
pa_stream_set_underflow_callback(m_pulseStream, stream_underrun_callback, this);
m_stopping = false;
size_t writeBytes = size_t(qMin(m_pulseBufferSize, m_sample->data().size()));
#ifdef QT_PA_DEBUG
qDebug() << this << "prepare(): writable size =" << pa_stream_writable_size(m_pulseStream)
<< "actual writeBytes =" << writeBytes
<< "m_playQueued =" << m_playQueued;
#endif
m_position = int(writeBytes);
if (pa_stream_write(m_pulseStream, reinterpret_cast<void *>(const_cast<char*>(m_sample->data().data())), writeBytes,
stream_write_done_callback, 0, PA_SEEK_RELATIVE) != 0) {
qWarning("QSoundEffect(pulseaudio): pa_stream_write, error = %s", pa_strerror(pa_context_errno(pulseDaemon()->context())));
}
if (m_playQueued) {
m_playQueued = false;
setLoopsRemaining(m_loopCount);
playSample();
}
}
void QSoundEffectPrivate::uploadSample()
{
if (m_runningCount == 0) {
#ifdef QT_PA_DEBUG
qDebug() << this << "uploadSample: return due to 0 m_runningCount";
#endif
return;
}
#ifdef QT_PA_DEBUG
qDebug() << this << "uploadSample: m_runningCount =" << m_runningCount;
#endif
if (m_position == m_sample->data().size()) {
m_position = 0;
if (m_runningCount > 0)
setLoopsRemaining(m_runningCount - 1);
if (m_runningCount == 0) {
return;
}
}
int writtenBytes = 0;
int writableSize = int(pa_stream_writable_size(m_pulseStream));
int firstPartLength = qMin(m_sample->data().size() - m_position, writableSize);
if (pa_stream_write(m_pulseStream, reinterpret_cast<void *>(const_cast<char*>(m_sample->data().data()) + m_position),
firstPartLength, stream_write_done_callback, 0, PA_SEEK_RELATIVE) != 0) {
qWarning("QSoundEffect(pulseaudio): pa_stream_write, error = %s", pa_strerror(pa_context_errno(pulseDaemon()->context())));
}
writtenBytes = firstPartLength;
m_position += firstPartLength;
if (m_position == m_sample->data().size()) {
m_position = 0;
if (m_runningCount > 0)
setLoopsRemaining(m_runningCount - 1);
if (m_runningCount != 0 && firstPartLength < writableSize)
{
while (writtenBytes < writableSize) {
int writeSize = qMin(writableSize - writtenBytes, m_sample->data().size());
if (pa_stream_write(m_pulseStream, reinterpret_cast<void *>(const_cast<char*>(m_sample->data().data())),
writeSize, stream_write_done_callback, 0, PA_SEEK_RELATIVE) != 0) {
qWarning("QSoundEffect(pulseaudio): pa_stream_write, error = %s", pa_strerror(pa_context_errno(pulseDaemon()->context())));
}
writtenBytes += writeSize;
if (writeSize < m_sample->data().size()) {
m_position = writeSize;
break;
}
if (m_runningCount > 0)
setLoopsRemaining(m_runningCount - 1);
if (m_runningCount == 0)
break;
}
}
}
#ifdef QT_PA_DEBUG
qDebug() << this << "uploadSample: use direct write, writeable size =" << writableSize
<< "actual writtenBytes =" << writtenBytes;
#endif
}
void QSoundEffectPrivate::playSample()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "playSample";
#endif
Q_ASSERT(m_pulseStream);
Q_ASSERT(pa_stream_get_state(m_pulseStream) == PA_STREAM_READY);
pa_operation_unref(pa_stream_cork(m_pulseStream, 0, 0, 0));
}
void QSoundEffectPrivate::stop()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "stop";
#endif
if (!m_playing)
return;
setPlaying(false);
PulseDaemonLocker locker;
m_stopping = true;
if (m_pulseStream) {
emptyStream();
if (m_reloadCategory) {
unloadPulseStream(); // upon play we reconnect anyway
}
}
setLoopsRemaining(0);
m_position = 0;
m_playQueued = false;
m_reloadCategory = false;
}
void QSoundEffectPrivate::underRun()
{
stop();
}
void QSoundEffectPrivate::streamReady()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "streamReady";
#endif
PulseDaemonLocker locker;
m_sinkInputId = pa_stream_get_index(m_pulseStream);
updateMuted();
updateVolume();
#ifdef QT_PA_DEBUG
const pa_buffer_attr *realBufAttr = pa_stream_get_buffer_attr(m_pulseStream);
qDebug() << this << "m_sinkInputId =" << m_sinkInputId
<< "tlength =" << realBufAttr->tlength << "maxlength =" << realBufAttr->maxlength
<< "minreq = " << realBufAttr->minreq << "prebuf =" << realBufAttr->prebuf;
#endif
prepare();
setStatus(QSoundEffect::Ready);
}
void QSoundEffectPrivate::createPulseStream()
{
#ifdef QT_PA_DEBUG
qDebug() << this << "createPulseStream";
#endif
pa_proplist *propList = pa_proplist_new();
if (m_category.isNull()) {
// Meant to be one of the strings "video", "music", "game", "event", "phone", "animation", "production", "a11y", "test"
pa_proplist_sets(propList, PA_PROP_MEDIA_ROLE, "game");
} else {
pa_proplist_sets(propList, PA_PROP_MEDIA_ROLE, m_category.toLatin1().constData());
}
pa_stream *stream = pa_stream_new_with_proplist(pulseDaemon()->context(), m_name.constData(), &m_pulseSpec, 0, propList);
pa_proplist_free(propList);
connect(pulseDaemon(), SIGNAL(volumeChanged()), this, SLOT(updateVolume()));
if (stream == 0) {
qWarning("QSoundEffect(pulseaudio): Failed to create stream");
m_pulseStream = 0;
setStatus(QSoundEffect::Error);
setPlaying(false);
return;
}
else {
pa_stream_set_state_callback(stream, stream_state_callback, this);
pa_stream_set_write_callback(stream, stream_write_callback, this);
pa_stream_set_underflow_callback(stream, stream_underrun_callback, this);
}
m_pulseStream = stream;
#ifndef QTM_PULSEAUDIO_DEFAULTBUFFER
pa_buffer_attr bufferAttr;
bufferAttr.tlength = qMin(m_sample->data().size(), QT_PA_STREAM_BUFFER_SIZE_MAX);
bufferAttr.maxlength = -1;
bufferAttr.minreq = bufferAttr.tlength / 2;
bufferAttr.prebuf = -1;
bufferAttr.fragsize = -1;
if (pa_stream_connect_playback(m_pulseStream, 0, &bufferAttr,
#else
if (pa_stream_connect_playback(m_pulseStream, 0, 0,
#endif
m_muted ? pa_stream_flags_t(PA_STREAM_START_MUTED | PA_STREAM_START_CORKED)
: pa_stream_flags_t(PA_STREAM_START_UNMUTED | PA_STREAM_START_CORKED),
0, 0) < 0) {
qWarning("QSoundEffect(pulseaudio): Failed to connect stream, error = %s",
pa_strerror(pa_context_errno(pulseDaemon()->context())));
}
}
void QSoundEffectPrivate::contextReady()
{
disconnect(pulseDaemon(), SIGNAL(contextReady()), this, SLOT(contextReady()));
PulseDaemonLocker locker;
createPulseStream();
}
void QSoundEffectPrivate::stream_write_callback(pa_stream *s, size_t length, void *userdata)
{
Q_UNUSED(length);
Q_UNUSED(s);
QSoundEffectPrivate *self = reinterpret_cast<QSoundEffectPrivate*>(userdata);
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_write_callback";
#endif
self->uploadSample();
}
void QSoundEffectPrivate::stream_state_callback(pa_stream *s, void *userdata)
{
QSoundEffectPrivate *self = reinterpret_cast<QSoundEffectPrivate*>(userdata);
switch (pa_stream_get_state(s)) {
case PA_STREAM_READY:
{
#ifdef QT_PA_DEBUG
qDebug() << self << "pulse stream ready";
#endif
const pa_buffer_attr *bufferAttr = pa_stream_get_buffer_attr(self->m_pulseStream);
self->m_pulseBufferSize = bufferAttr->tlength;
if (bufferAttr->prebuf > uint32_t(self->m_sample->data().size())) {
pa_buffer_attr newBufferAttr;
newBufferAttr = *bufferAttr;
newBufferAttr.prebuf = self->m_sample->data().size();
pa_stream_set_buffer_attr(self->m_pulseStream, &newBufferAttr, stream_adjust_prebuffer_callback, self->m_ref->getRef());
} else {
QMetaObject::invokeMethod(self, "streamReady", Qt::QueuedConnection);
}
break;
}
case PA_STREAM_CREATING:
#ifdef QT_PA_DEBUG
qDebug() << self << "pulse stream creating";
#endif
break;
case PA_STREAM_TERMINATED:
#ifdef QT_PA_DEBUG
qDebug() << self << "pulse stream terminated";
#endif
break;
case PA_STREAM_FAILED:
default:
qWarning("QSoundEffect(pulseaudio): Error in pulse audio stream");
break;
}
}
void QSoundEffectPrivate::stream_reset_buffer_callback(pa_stream *s, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "stream_reset_buffer_callback";
#endif
Q_UNUSED(s);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
if (!success)
qWarning("QSoundEffect(pulseaudio): faild to reset buffer attribute");
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_reset_buffer_callback";
#endif
const pa_buffer_attr *bufferAttr = pa_stream_get_buffer_attr(self->m_pulseStream);
self->m_pulseBufferSize = bufferAttr->tlength;
if (bufferAttr->prebuf > uint32_t(self->m_sample->data().size())) {
pa_buffer_attr newBufferAttr;
newBufferAttr = *bufferAttr;
newBufferAttr.prebuf = self->m_sample->data().size();
pa_stream_set_buffer_attr(self->m_pulseStream, &newBufferAttr, stream_adjust_prebuffer_callback, userdata);
} else {
QMetaObject::invokeMethod(self, "streamReady", Qt::QueuedConnection);
}
}
void QSoundEffectPrivate::stream_adjust_prebuffer_callback(pa_stream *s, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "stream_adjust_prebuffer_callback";
#endif
Q_UNUSED(s);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
if (!success)
qWarning("QSoundEffect(pulseaudio): faild to adjust pre-buffer attribute");
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_adjust_prebuffer_callback";
#endif
QMetaObject::invokeMethod(self, "streamReady", Qt::QueuedConnection);
}
void QSoundEffectPrivate::setvolume_callback(pa_context *c, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "setvolume_callback";
#endif
Q_UNUSED(c);
Q_UNUSED(userdata);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
#ifdef QT_PA_DEBUG
qDebug() << self << "setvolume_callback";
#endif
if (!success) {
qWarning("QSoundEffect(pulseaudio): faild to set volume");
}
}
void QSoundEffectPrivate::setmuted_callback(pa_context *c, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "setmuted_callback";
#endif
Q_UNUSED(c);
Q_UNUSED(userdata);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
#ifdef QT_PA_DEBUG
qDebug() << self << "setmuted_callback";
#endif
if (!success) {
qWarning("QSoundEffect(pulseaudio): faild to set muted");
}
}
void QSoundEffectPrivate::stream_underrun_callback(pa_stream *s, void *userdata)
{
Q_UNUSED(s);
QSoundEffectPrivate *self = reinterpret_cast<QSoundEffectPrivate*>(userdata);
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_underrun_callback";
#endif
if (self->m_runningCount == 0 && !self->m_playQueued)
QMetaObject::invokeMethod(self, "underRun", Qt::QueuedConnection);
#ifdef QT_PA_DEBUG
else
qDebug() << "underun corked =" << pa_stream_is_corked(s);
#endif
}
void QSoundEffectPrivate::stream_cork_callback(pa_stream *s, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "stream_cork_callback";
#endif
Q_UNUSED(s);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
if (!success)
qWarning("QSoundEffect(pulseaudio): faild to stop");
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_cork_callback";
#endif
QMetaObject::invokeMethod(self, "prepare", Qt::QueuedConnection);
}
void QSoundEffectPrivate::stream_flush_callback(pa_stream *s, int success, void *userdata)
{
#ifdef QT_PA_DEBUG
qDebug() << "stream_flush_callback";
#endif
Q_UNUSED(s);
QSoundEffectRef *ref = reinterpret_cast<QSoundEffectRef*>(userdata);
QSoundEffectPrivate *self = ref->soundEffect();
ref->release();
if (!self)
return;
if (!success)
qWarning("QSoundEffect(pulseaudio): faild to drain");
#ifdef QT_PA_DEBUG
qDebug() << self << "stream_flush_callback";
#endif
QMetaObject::invokeMethod(self, "emptyComplete", Qt::QueuedConnection, Q_ARG(void*, s));
}
void QSoundEffectPrivate::stream_write_done_callback(void *p)
{
Q_UNUSED(p);
#ifdef QT_PA_DEBUG
qDebug() << "stream_write_done_callback";
#endif
}
QT_END_NAMESPACE
#include "moc_qsoundeffect_pulse_p.cpp"
#include "qsoundeffect_pulse_p.moc"
Reference in New Issue View Git Blame Copy Permalink