--- a/qtmobility/plugins/multimedia/pulseaudio/pulseaudioplayercontrol.cpp Fri Apr 16 15:51:22 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,513 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the Qt Mobility Components.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** 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, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtCore/qobject.h>
-#include <QtCore/qdebug.h>
-#include <QtNetwork>
-
-#include "wavedecoder.h"
-#include "pulseaudioplayercontrol.h"
-
-// Less than ideal
-#define PA_SCACHE_ENTRY_SIZE_MAX (1024*1024*16)
-
-namespace
-{
-
-inline pa_sample_spec audioFormatToSampleSpec(const QAudioFormat &format)
-{
- pa_sample_spec spec;
-
- spec.rate = format.frequency();
- spec.channels = format.channels();
-
- 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:
- PulseDaemon():m_prepared(false)
- {
- prepare();
- }
-
- ~PulseDaemon()
- {
- if (m_prepared)
- release();
- }
-
- inline void lock()
- {
- pa_threaded_mainloop_lock(m_mainLoop);
- }
-
- inline void unlock()
- {
- pa_threaded_mainloop_unlock(m_mainLoop);
- }
-
- inline pa_context *context() const
- {
- return m_context;
- }
-
-private:
- void prepare()
- {
- 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("QtPulseAudio:%1").arg(::getpid()).toAscii().constData());
- if (m_context == 0) {
- qWarning("PulseAudioService: Unable to create new pulseaudio context");
- pa_threaded_mainloop_free(m_mainLoop);
- return;
- }
-
- if (pa_context_connect(m_context, NULL, (pa_context_flags_t)0, NULL) < 0) {
- qWarning("PulseAudioService: pa_context_connect() failed");
- pa_context_unref(m_context);
- pa_threaded_mainloop_free(m_mainLoop);
- return;
- }
- unlock();
-
- m_prepared = true;
- }
-
- void release()
- {
- if (!m_prepared) return;
- pa_threaded_mainloop_stop(m_mainLoop);
- pa_threaded_mainloop_free(m_mainLoop);
- m_prepared = false;
- }
-
- bool m_prepared;
- pa_context *m_context;
- pa_threaded_mainloop *m_mainLoop;
- pa_mainloop_api *m_mainLoopApi;
-};
-
-}
-
-Q_GLOBAL_STATIC(PulseDaemon, daemon)
-
-
-
-PulseAudioPlayerControl::PulseAudioPlayerControl(QObject *parent) :
- QMediaPlayerControl(parent),
- m_muted(false),
- m_playQueued(false),
- m_volume(100),
- m_duration(0),
- m_dataUploaded(0),
- m_state(QMediaPlayer::StoppedState),
- m_status(QMediaPlayer::NoMedia),
- m_reply(0),
- m_stream(0),
- m_networkAccessManager(0)
-{
-}
-
-PulseAudioPlayerControl::~PulseAudioPlayerControl()
-{
- delete m_reply;
-
- unloadSample();
-}
-
-QMediaPlayer::State PulseAudioPlayerControl::state() const
-{
- return m_state;
-}
-
-QMediaPlayer::MediaStatus PulseAudioPlayerControl::mediaStatus() const
-{
- return m_status;
-}
-
-qint64 PulseAudioPlayerControl::duration() const
-{
- return m_duration;
-}
-
-qint64 PulseAudioPlayerControl::position() const
-{
- return 0;
-}
-
-void PulseAudioPlayerControl::setPosition(qint64 position)
-{
- Q_UNUSED(position);
-}
-
-int PulseAudioPlayerControl::volume() const
-{
- return m_volume;
-}
-
-void PulseAudioPlayerControl::setVolume(int volume)
-{
- if (m_volume == volume)
- return;
-
- emit volumeChanged(m_volume = volume);
-}
-
-bool PulseAudioPlayerControl::isMuted() const
-{
- return m_muted;
-}
-
-void PulseAudioPlayerControl::setMuted(bool muted)
-{
- if (m_muted == muted)
- return;
-
- emit mutedChanged(m_muted = muted);
-}
-
-int PulseAudioPlayerControl::bufferStatus() const
-{
- return 0;
-}
-
-bool PulseAudioPlayerControl::isAudioAvailable() const
-{
- return m_status != QMediaPlayer::NoMedia && m_status != QMediaPlayer::LoadingMedia;
-}
-
-bool PulseAudioPlayerControl::isVideoAvailable() const
-{
- return false;
-}
-
-bool PulseAudioPlayerControl::isSeekable() const
-{
- return false;
-}
-
-QMediaTimeRange PulseAudioPlayerControl::availablePlaybackRanges() const
-{
- return QMediaTimeRange();
-}
-
-qreal PulseAudioPlayerControl::playbackRate() const
-{
- return 1.0;
-}
-
-void PulseAudioPlayerControl::setPlaybackRate(qreal rate)
-{
- Q_UNUSED(rate);
-}
-
-QMediaContent PulseAudioPlayerControl::media() const
-{
- return m_media;
-}
-
-const QIODevice * PulseAudioPlayerControl::mediaStream() const
-{
- return m_media.isNull() ? m_stream : 0;
-}
-
-void PulseAudioPlayerControl::setMedia(const QMediaContent &media, QIODevice *stream)
-{
- if (media.isNull() && stream == 0) {
- m_media = QMediaContent();
- m_stream = 0;
- unloadSample();
- return;
- }
-
- if (stream != 0) {
- if (m_stream == stream)
- return;
-
- m_stream = stream;
- m_media = QMediaContent();
- }
- else {
- if (m_media == media)
- return;
- m_media = media;
-
- if (m_networkAccessManager == 0)
- m_networkAccessManager = new QNetworkAccessManager(this);
-
- m_stream = m_networkAccessManager->get(QNetworkRequest(m_media.canonicalUrl()));
- }
-
- unloadSample();
- loadSample();
-
- emit mediaChanged(m_media);
-}
-
-void PulseAudioPlayerControl::play()
-{
- if (m_status == QMediaPlayer::LoadingMedia) {
- m_playQueued = true;
- return;
- }
-
- if (m_status != QMediaPlayer::BufferedMedia ||
- m_state == QMediaPlayer::PlayingState)
- return;
-
-#ifdef MAEMO_VOLUME
- // Need to do this in code! (TODO)
- QString cmd = QString("/usr/bin/pasr -r -s x-maemo|/usr/bin/tail -n3|/usr/bin/head -n1|/usr/bin/awk '{print $3}'|/bin/sed 's/\%//g'>/tmp/vol");
- system(cmd.toLocal8Bit().constData());
- QFile volFile("/tmp/vol");
- volFile.open(QIODevice::ReadOnly);
- QByteArray volNum = volFile.readLine();
- cmd = QString("/usr/bin/pasr -u -s event -l %1 -c mono").arg((m_volume+QString(volNum.constData()).toInt())/2);
- system(cmd.toLocal8Bit().constData());
-#endif
-
- daemon()->lock();
- pa_operation_unref(
- pa_context_play_sample(daemon()->context(),
- m_name.constData(),
- 0,
- -1,
- play_callback,
- this)
- );
- daemon()->unlock();
-
- m_playbackTime.start();
-
- emit stateChanged(m_state = QMediaPlayer::PlayingState);
-}
-
-void PulseAudioPlayerControl::pause()
-{
- emit stateChanged(m_state = QMediaPlayer::StoppedState);
-}
-
-void PulseAudioPlayerControl::stop()
-{
- emit stateChanged(m_state = QMediaPlayer::StoppedState);
-}
-
-void PulseAudioPlayerControl::loadSample()
-{
- m_waveDecoder = new WaveDecoder(m_stream);
- connect(m_waveDecoder, SIGNAL(formatKnown()), SLOT(decoderReady()));
- connect(m_waveDecoder, SIGNAL(invalidFormat()), SLOT(decoderError()));
-
- m_status = QMediaPlayer::LoadingMedia;
- emit mediaStatusChanged(m_status);
-}
-
-void PulseAudioPlayerControl::unloadSample()
-{
- if (m_status != QMediaPlayer::BufferedMedia)
- return;
-
- m_status = QMediaPlayer::NoMedia;
-
- daemon()->lock();
- pa_context_remove_sample(daemon()->context(), m_name.constData(), NULL, NULL);
- daemon()->unlock();
-
- m_duration = 0;
- m_dataUploaded = 0;
-}
-
-void PulseAudioPlayerControl::timerEvent(QTimerEvent *event)
-{
- if (m_state == QMediaPlayer::PlayingState) {
- m_state = QMediaPlayer::StoppedState;
- emit stateChanged(m_state);
- }
-
- killTimer(event->timerId());
-}
-
-void PulseAudioPlayerControl::decoderReady()
-{
- if (m_waveDecoder->size() >= PA_SCACHE_ENTRY_SIZE_MAX) {
- m_status = QMediaPlayer::InvalidMedia;
- emit mediaStatusChanged(m_status);
- qWarning("QtPulseAudio: attempting to load to large a sample");
- return;
- }
-
- if (m_name.isNull())
- m_name = QString("QtPulseSample-%1-%2").arg(::getpid()).arg(reinterpret_cast<unsigned long>(this)).toUtf8();
-
- pa_sample_spec spec = audioFormatToSampleSpec(m_waveDecoder->audioFormat());
-
- daemon()->lock();
- pa_stream *stream = pa_stream_new(daemon()->context(), m_name.constData(), &spec, 0);
- pa_stream_set_state_callback(stream, stream_state_callback, this);
- pa_stream_set_write_callback(stream, stream_write_callback, this);
- pa_stream_connect_upload(stream, (size_t)m_waveDecoder->size());
- daemon()->unlock();
-}
-
-void PulseAudioPlayerControl::decoderError()
-{
- emit mediaStatusChanged(m_status = QMediaPlayer::InvalidMedia);
-}
-
-void PulseAudioPlayerControl::checkPlayTime()
-{
- int elapsed = m_playbackTime.elapsed();
-
- if (elapsed >= m_duration) {
- m_state = QMediaPlayer::StoppedState;
- emit stateChanged(m_state);
- }
- else
- startTimer(m_duration - elapsed);
-}
-
-void PulseAudioPlayerControl::stream_write_callback(pa_stream *s, size_t length, void *userdata)
-{
- Q_UNUSED(length);
-
- PulseAudioPlayerControl *self = reinterpret_cast<PulseAudioPlayerControl*>(userdata);
-
- size_t bufferSize = qMin(pa_stream_writable_size(s),
- size_t(self->m_waveDecoder->bytesAvailable()));
- char buffer[bufferSize];
-
- size_t len = 0;
- while (len < length) {
- qint64 read = self->m_waveDecoder->read(buffer, qMin(bufferSize, length -len));
- if (read > 0) {
- if (pa_stream_write(s, buffer, size_t(read), 0, 0, PA_SEEK_RELATIVE) == 0)
- len += size_t(read);
- else
- break;
- }
- }
- self->m_dataUploaded += len;
-
- if (self->m_waveDecoder->size() == self->m_dataUploaded) {
- pa_stream_finish_upload(s);
-
- self->m_duration = self->m_waveDecoder->duration();
- emit self->durationChanged(self->m_duration);
-
- self->m_status = QMediaPlayer::BufferedMedia;
- emit self->mediaStatusChanged(self->m_status);
- emit self->audioAvailableChanged(true);
-
- self->m_waveDecoder->deleteLater();
- if (!self->m_media.isNull())
- self->m_stream->deleteLater();
-
- if (self->m_playQueued) {
- self->m_playQueued = false;
- QMetaObject::invokeMethod(self, "play");
- }
- }
-}
-
-void PulseAudioPlayerControl::stream_state_callback(pa_stream *s, void *userdata)
-{
- PulseAudioPlayerControl *self = reinterpret_cast<PulseAudioPlayerControl*>(userdata);
-
- switch (pa_stream_get_state(s)) {
- case PA_STREAM_CREATING:
- case PA_STREAM_READY:
- case PA_STREAM_TERMINATED:
- break;
-
- case PA_STREAM_FAILED:
- default:
- self->m_status = QMediaPlayer::InvalidMedia;
- emit self->mediaStatusChanged(self->m_status);
- break;
- }
-}
-
-void PulseAudioPlayerControl::play_callback(pa_context *c, int success, void *userdata)
-{
- Q_UNUSED(c);
-
- PulseAudioPlayerControl *self = reinterpret_cast<PulseAudioPlayerControl*>(userdata);
-
- if (success == 1)
- QMetaObject::invokeMethod(self, "checkPlayTime", Qt::QueuedConnection);
- else {
- self->m_state = QMediaPlayer::StoppedState;
- emit self->stateChanged(self->m_state);
- }
-}
-