Files
qtmultimedia/src/plugins/blackberry/mediaplayer/bbmediaplayercontrol.cpp
Frederik Gladhorn d396262bc9 Merge remote-tracking branch 'origin/stable' into dev
Conflicts:
	src/multimedia/doc/qtmultimedia.qdocconf
	src/plugins/blackberry/mediaplayer/bbmetadata.cpp
	src/plugins/blackberry/mediaplayer/bbmetadata.h
	tests/auto/unit/qpaintervideosurface/tst_qpaintervideosurface.cpp

Change-Id: I447c297ea15a94d1d2feb0fb5f9edac8c5d4505a
2013-02-19 17:15:56 +01:00

627 lines
18 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Research In Motion
** 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "bbmediaplayercontrol.h"
#include "bbmetadatareadercontrol.h"
#include "bbvideowindowcontrol.h"
#include "bbutil.h"
#include <QtCore/qabstracteventdispatcher.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qdir.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/quuid.h>
#include <mm/renderer.h>
#include <bps/mmrenderer.h>
#include <bps/screen.h>
#include <errno.h>
#include <sys/strm.h>
#include <sys/stat.h>
QT_BEGIN_NAMESPACE
static int idCounter = 0;
BbMediaPlayerControl::BbMediaPlayerControl(QObject *parent)
: QMediaPlayerControl(parent),
m_connection(0),
m_context(0),
m_audioId(-1),
m_state(QMediaPlayer::StoppedState),
m_volume(100),
m_muted(false),
m_rate(1),
m_id(-1),
m_eventMonitor(0),
m_position(0),
m_mediaStatus(QMediaPlayer::NoMedia),
m_playAfterMediaLoaded(false),
m_inputAttached(false),
m_stopEventsToIgnore(0),
m_bufferStatus(0)
{
m_loadingTimer.setSingleShot(true);
m_loadingTimer.setInterval(0);
connect(&m_loadingTimer, SIGNAL(timeout()), this, SLOT(continueLoadMedia()));
QCoreApplication::eventDispatcher()->installNativeEventFilter(this);
openConnection();
}
BbMediaPlayerControl::~BbMediaPlayerControl()
{
stop();
detach();
closeConnection();
QCoreApplication::eventDispatcher()->removeNativeEventFilter(this);
}
void BbMediaPlayerControl::openConnection()
{
m_connection = mmr_connect(NULL);
if (!m_connection) {
emitPError("Unable to connect to the multimedia renderer");
return;
}
m_id = idCounter++;
m_contextName = QString("BbMediaPlayerControl_%1_%2").arg(m_id)
.arg(QCoreApplication::applicationPid());
m_context = mmr_context_create(m_connection, m_contextName.toLatin1(),
0, S_IRWXU|S_IRWXG|S_IRWXO);
if (!m_context) {
emitPError("Unable to create context");
closeConnection();
return;
}
m_eventMonitor = mmrenderer_request_events(m_contextName.toLatin1(), 0, m_id);
if (!m_eventMonitor) {
qDebug() << "Unable to request multimedia events";
emit error(0, "Unable to request multimedia events");
}
}
void BbMediaPlayerControl::closeConnection()
{
if (m_eventMonitor) {
mmrenderer_stop_events(m_eventMonitor);
m_eventMonitor = 0;
}
if (m_context) {
mmr_context_destroy(m_context);
m_context = 0;
m_contextName.clear();
}
if (m_connection) {
mmr_disconnect(m_connection);
m_connection = 0;
}
}
QString BbMediaPlayerControl::resourcePathForUrl(const QUrl &url)
{
// If this is a local file, mmrenderer expects the file:// prefix and an absolute path.
// We treat URLs without scheme as local files, most likely someone just forgot to set the
// file:// prefix when constructing the URL.
if (url.isLocalFile() || url.scheme().isEmpty()) {
QString relativeFilePath;
if (!url.scheme().isEmpty())
relativeFilePath = url.toLocalFile();
else
relativeFilePath = url.path();
const QFileInfo fileInfo(relativeFilePath);
return QStringLiteral("file://") + fileInfo.absoluteFilePath();
// QRC, copy to temporary file, as mmrenderer does not support resource files
} else if (url.scheme() == QStringLiteral("qrc")) {
const QString qrcPath = ':' + url.path();
const QFileInfo resourceFileInfo(qrcPath);
m_tempMediaFileName = QDir::tempPath() + QStringLiteral("/qtmedia_") +
QUuid::createUuid().toString() + QStringLiteral(".") +
resourceFileInfo.suffix();
if (!QFile::copy(qrcPath, m_tempMediaFileName)) {
const QString errorMsg =
QString("Failed to copy resource file to temporary file %1 for playback").arg(m_tempMediaFileName);
qDebug() << errorMsg;
emit error(0, errorMsg);
return QString();
}
return m_tempMediaFileName;
// HTTP or similar URL, use as-is
} else {
return url.toString();
}
}
void BbMediaPlayerControl::attach()
{
// Should only be called in detached state
Q_ASSERT(m_audioId == -1 && !m_inputAttached && m_tempMediaFileName.isEmpty());
if (m_media.isNull() || !m_context) {
setMediaStatus(QMediaPlayer::NoMedia);
return;
}
if (m_videoControl)
m_videoControl->attachDisplay(m_context);
m_audioId = mmr_output_attach(m_context, "audio:default", "audio");
if (m_audioId == -1) {
emitMmError("mmr_output_attach() for audio failed");
return;
}
const QString resourcePath = resourcePathForUrl(m_media.canonicalUrl());
if (resourcePath.isEmpty()) {
detach();
return;
}
if (mmr_input_attach(m_context, QFile::encodeName(resourcePath), "track") != 0) {
emitMmError(QString("mmr_input_attach() for %1 failed").arg(resourcePath));
setMediaStatus(QMediaPlayer::InvalidMedia);
detach();
return;
}
// For whatever reason, the mmrenderer sends out a MMR_STOPPED event when calling
// mmr_input_attach() above. Ignore it, as otherwise we'll trigger stopping right after we
// started.
m_stopEventsToIgnore++;
m_inputAttached = true;
setMediaStatus(QMediaPlayer::LoadedMedia);
m_bufferStatus = 0;
emit bufferStatusChanged(m_bufferStatus);
}
void BbMediaPlayerControl::detach()
{
if (m_context) {
if (m_inputAttached) {
mmr_input_detach(m_context);
m_inputAttached = false;
}
if (m_videoControl)
m_videoControl->detachDisplay();
if (m_audioId != -1 && m_context) {
mmr_output_detach(m_context, m_audioId);
m_audioId = -1;
}
}
if (!m_tempMediaFileName.isEmpty()) {
QFile::remove(m_tempMediaFileName);
m_tempMediaFileName.clear();
}
m_loadingTimer.stop();
}
QMediaPlayer::State BbMediaPlayerControl::state() const
{
return m_state;
}
QMediaPlayer::MediaStatus BbMediaPlayerControl::mediaStatus() const
{
return m_mediaStatus;
}
qint64 BbMediaPlayerControl::duration() const
{
return m_metaData.duration();
}
qint64 BbMediaPlayerControl::position() const
{
return m_position;
}
void BbMediaPlayerControl::setPosition(qint64 position)
{
if (m_position != position) {
m_position = position;
// Don't update in stopped state, it would not have any effect. Instead, the position is
// updated in play().
if (m_state != QMediaPlayer::StoppedState)
setPositionInternal(m_position);
emit positionChanged(m_position);
}
}
int BbMediaPlayerControl::volume() const
{
return m_volume;
}
void BbMediaPlayerControl::setVolumeInternal(int newVolume)
{
if (!m_context)
return;
newVolume = qBound(0, newVolume, 100);
if (m_audioId != -1) {
strm_dict_t * dict = strm_dict_new();
dict = strm_dict_set(dict, "volume", QString::number(newVolume).toLatin1());
if (mmr_output_parameters(m_context, m_audioId, dict) != 0)
emitMmError("mmr_output_parameters: Setting volume failed");
}
}
void BbMediaPlayerControl::setPlaybackRateInternal(qreal rate)
{
if (!m_context)
return;
const int mmRate = rate * 1000;
if (mmr_speed_set(m_context, mmRate) != 0)
emitMmError("mmr_speed_set failed");
}
void BbMediaPlayerControl::setPositionInternal(qint64 position)
{
if (!m_context)
return;
if (m_metaData.isSeekable()) {
if (mmr_seek(m_context, QString::number(position).toLatin1()) != 0)
emitMmError("Seeking failed");
}
}
void BbMediaPlayerControl::setMediaStatus(QMediaPlayer::MediaStatus status)
{
if (m_mediaStatus != status) {
m_mediaStatus = status;
emit mediaStatusChanged(m_mediaStatus);
}
}
void BbMediaPlayerControl::setState(QMediaPlayer::State state)
{
if (m_state != state) {
m_state = state;
emit stateChanged(m_state);
}
}
void BbMediaPlayerControl::stopInternal(StopCommand stopCommand)
{
if (m_state != QMediaPlayer::StoppedState) {
if (stopCommand == StopMmRenderer) {
++m_stopEventsToIgnore;
mmr_stop(m_context);
}
setState(QMediaPlayer::StoppedState);
}
if (m_position != 0) {
m_position = 0;
emit positionChanged(0);
}
}
void BbMediaPlayerControl::setVolume(int volume)
{
const int newVolume = qBound(0, volume, 100);
if (m_volume != newVolume) {
m_volume = newVolume;
if (!m_muted)
setVolumeInternal(m_volume);
emit volumeChanged(m_volume);
}
}
bool BbMediaPlayerControl::isMuted() const
{
return m_muted;
}
void BbMediaPlayerControl::setMuted(bool muted)
{
if (m_muted != muted) {
m_muted = muted;
setVolumeInternal(muted ? 0 : m_volume);
emit mutedChanged(muted);
}
}
int BbMediaPlayerControl::bufferStatus() const
{
return m_bufferStatus;
}
bool BbMediaPlayerControl::isAudioAvailable() const
{
return m_metaData.hasAudio();
}
bool BbMediaPlayerControl::isVideoAvailable() const
{
return m_metaData.hasVideo();
}
bool BbMediaPlayerControl::isSeekable() const
{
return m_metaData.isSeekable();
}
QMediaTimeRange BbMediaPlayerControl::availablePlaybackRanges() const
{
// We can't get this information from the mmrenderer API yet, so pretend we can seek everywhere
return QMediaTimeRange(0, m_metaData.duration());
}
qreal BbMediaPlayerControl::playbackRate() const
{
return m_rate;
}
void BbMediaPlayerControl::setPlaybackRate(qreal rate)
{
if (m_rate != rate) {
m_rate = rate;
setPlaybackRateInternal(m_rate);
emit playbackRateChanged(m_rate);
}
}
QMediaContent BbMediaPlayerControl::media() const
{
return m_media;
}
const QIODevice *BbMediaPlayerControl::mediaStream() const
{
// Always 0, we don't support QIODevice streams
return 0;
}
void BbMediaPlayerControl::setMedia(const QMediaContent &media, QIODevice *stream)
{
Q_UNUSED(stream); // not supported
stop();
detach();
m_media = media;
emit mediaChanged(m_media);
// Slight hack: With MediaPlayer QtQuick elements that have autoPlay set to true, playback
// would start before the QtQuick canvas is propagated to all elements, and therefore our
// video output would not work. Therefore, delay actually playing the media a bit so that the
// canvas is ready.
// The mmrenderer doesn't allow to attach video outputs after playing has started, otherwise
// this would be unnecessary.
if (!m_media.isNull()) {
setMediaStatus(QMediaPlayer::LoadingMedia);
m_loadingTimer.start(); // singleshot timer to continueLoadMedia()
} else {
continueLoadMedia(); // still needed, as it will update the media status and clear metadata
}
}
void BbMediaPlayerControl::continueLoadMedia()
{
attach();
updateMetaData();
if (m_playAfterMediaLoaded)
play();
}
void BbMediaPlayerControl::play()
{
if (m_playAfterMediaLoaded)
m_playAfterMediaLoaded = false;
// No-op if we are already playing, except if we were called from continueLoadMedia(), in which
// case m_playAfterMediaLoaded is true (hence the 'else').
else if (m_state == QMediaPlayer::PlayingState)
return;
if (m_mediaStatus == QMediaPlayer::LoadingMedia) {
// State changes are supposed to be synchronous
setState(QMediaPlayer::PlayingState);
// Defer playing to later, when the timer triggers continueLoadMedia()
m_playAfterMediaLoaded = true;
return;
}
// Un-pause the state when it is paused
if (m_state == QMediaPlayer::PausedState) {
setPlaybackRateInternal(m_rate);
setState(QMediaPlayer::PlayingState);
return;
}
if (m_media.isNull() || !m_connection || !m_context || m_audioId == -1) {
setState(QMediaPlayer::StoppedState);
return;
}
setPositionInternal(m_position);
setVolumeInternal(m_volume);
setPlaybackRateInternal(m_rate);
if (mmr_play(m_context) != 0) {
setState(QMediaPlayer::StoppedState);
emitMmError("mmr_play() failed");
return;
}
setState( QMediaPlayer::PlayingState);
}
void BbMediaPlayerControl::pause()
{
if (m_state == QMediaPlayer::PlayingState) {
setPlaybackRateInternal(0);
setState(QMediaPlayer::PausedState);
}
}
void BbMediaPlayerControl::stop()
{
stopInternal(StopMmRenderer);
}
void BbMediaPlayerControl::setVideoControl(BbVideoWindowControl *videoControl)
{
m_videoControl = videoControl;
}
void BbMediaPlayerControl::setMetaDataReaderControl(BbMetaDataReaderControl *metaDataReaderControl)
{
m_metaDataReaderControl = metaDataReaderControl;
}
bool BbMediaPlayerControl::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
{
Q_UNUSED(eventType);
Q_UNUSED(result);
bps_event_t * const event = static_cast<bps_event_t *>(message);
if (!event ||
(bps_event_get_domain(event) != mmrenderer_get_domain() &&
bps_event_get_domain(event) != screen_get_domain()))
return false;
if (m_videoControl)
m_videoControl->bpsEventHandler(event);
if (bps_event_get_domain(event) == mmrenderer_get_domain()) {
if (bps_event_get_code(event) == MMRENDERER_STATE_CHANGE) {
const mmrenderer_state_t newState = mmrenderer_event_get_state(event);
if (newState == MMR_STOPPED) {
// Only react to stop events that happen when the end of the stream is reached and
// playback is stopped because of this.
// Ignore other stop event sources, souch as calling mmr_stop() ourselves and
// mmr_input_attach().
if (m_stopEventsToIgnore > 0) {
--m_stopEventsToIgnore;
} else {
setMediaStatus(QMediaPlayer::EndOfMedia);
stopInternal(IgnoreMmRenderer);
}
return false;
}
}
if (bps_event_get_code(event) == MMRENDERER_STATUS_UPDATE) {
// Prevent spurious position change events from overriding our own position, for example
// when setting the position to 0 in stop().
// Also, don't change the position while we're loading the media, as then play() would
// set a wrong initial position.
if (m_state != QMediaPlayer::PlayingState ||
m_mediaStatus == QMediaPlayer::LoadingMedia ||
m_mediaStatus == QMediaPlayer::NoMedia ||
m_mediaStatus == QMediaPlayer::InvalidMedia)
return false;
const qint64 newPosition = QString::fromLatin1(mmrenderer_event_get_position(event)).toLongLong();
if (newPosition != 0 && newPosition != m_position) {
m_position = newPosition;
emit positionChanged(m_position);
}
const QString bufferStatus = QString::fromLatin1(mmrenderer_event_get_bufferlevel(event));
const int slashPos = bufferStatus.indexOf('/');
if (slashPos != -1) {
const int fill = bufferStatus.left(slashPos).toInt();
const int capacity = bufferStatus.mid(slashPos + 1).toInt();
if (capacity != 0) {
m_bufferStatus = fill / static_cast<float>(capacity) * 100.0f;
emit bufferStatusChanged(m_bufferStatus);
}
}
}
}
return false;
}
void BbMediaPlayerControl::updateMetaData()
{
if (m_mediaStatus == QMediaPlayer::LoadedMedia)
m_metaData.parse(m_contextName);
else
m_metaData.clear();
if (m_videoControl)
m_videoControl->setMetaData(m_metaData);
if (m_metaDataReaderControl)
m_metaDataReaderControl->setMetaData(m_metaData);
emit durationChanged(m_metaData.duration());
emit audioAvailableChanged(m_metaData.hasAudio());
emit videoAvailableChanged(m_metaData.hasVideo());
emit availablePlaybackRangesChanged(availablePlaybackRanges());
emit seekableChanged(m_metaData.isSeekable());
}
void BbMediaPlayerControl::emitMmError(const QString &msg)
{
int errorCode = MMR_ERROR_NONE;
const QString errorMessage = mmErrorMessage(msg, m_context, &errorCode);
qDebug() << errorMessage;
emit error(errorCode, errorMessage);
}
void BbMediaPlayerControl::emitPError(const QString &msg)
{
const QString errorMessage = QString("%1: %2").arg(msg).arg(strerror(errno));
qDebug() << errorMessage;
emit error(errno, errorMessage);
}
QT_END_NAMESPACE