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/****************************************************************************
**
** Copyright (C) 2016 Research In Motion
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "ppsmediaplayercontrol.h"
#include "mmrenderervideowindowcontrol.h"
#include <QtCore/qfile.h>
#include <QtCore/qsocketnotifier.h>
#include <QtCore/private/qcore_unix_p.h>
#include <screen/screen.h>
#include <sys/pps.h>
QT_BEGIN_NAMESPACE
PpsMediaPlayerControl::PpsMediaPlayerControl(QObject *parent)
: MmRendererMediaPlayerControl(parent),
m_ppsStatusNotifier(0),
m_ppsStatusFd(-1),
m_ppsStateNotifier(0),
m_ppsStateFd(-1)
, m_previouslySeenState("stopped")
{
openConnection();
}
PpsMediaPlayerControl::~PpsMediaPlayerControl()
{
destroy();
}
void PpsMediaPlayerControl::startMonitoring(int, const QString &contextName)
{
const QString ppsContextPath = QStringLiteral("/pps/services/multimedia/renderer/context/%1/").arg(contextName);
const QString ppsStatusPath = ppsContextPath + QStringLiteral("/status");
Q_ASSERT(m_ppsStatusFd == -1);
errno = 0;
m_ppsStatusFd = qt_safe_open(QFile::encodeName(ppsStatusPath).constData(), O_RDONLY);
if (m_ppsStatusFd == -1) {
emitPError(QStringLiteral("Unable to open %1: %2").arg(ppsStatusPath, qt_error_string(errno)));
return;
}
Q_ASSERT(!m_ppsStatusNotifier);
m_ppsStatusNotifier = new QSocketNotifier(m_ppsStatusFd, QSocketNotifier::Read);
connect(m_ppsStatusNotifier, SIGNAL(activated(int)), this, SLOT(ppsReadyRead(int)));
const QString ppsStatePath = ppsContextPath + QStringLiteral("/state");
Q_ASSERT(m_ppsStateFd == -1);
errno = 0;
m_ppsStateFd = qt_safe_open(QFile::encodeName(ppsStatePath).constData(), O_RDONLY);
if (m_ppsStateFd == -1) {
emitPError(QStringLiteral("Unable to open %1: %2").arg(ppsStatePath, qt_error_string(errno)));
return;
}
Q_ASSERT(!m_ppsStateNotifier);
m_ppsStateNotifier = new QSocketNotifier(m_ppsStateFd, QSocketNotifier::Read);
connect(m_ppsStateNotifier, SIGNAL(activated(int)), this, SLOT(ppsReadyRead(int)));
//ensure we receive any initial state
ppsReadyRead(m_ppsStatusFd);
ppsReadyRead(m_ppsStateFd);
}
void PpsMediaPlayerControl::stopMonitoring()
{
if (m_ppsStatusFd != -1) {
::close(m_ppsStatusFd);
m_ppsStatusFd = -1;
}
delete m_ppsStatusNotifier;
m_ppsStatusNotifier = 0;
if (m_ppsStateFd != -1) {
::close(m_ppsStateFd);
m_ppsStateFd = -1;
}
delete m_ppsStateNotifier;
m_ppsStateNotifier = 0;
}
bool PpsMediaPlayerControl::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
{
Q_UNUSED(result)
if (eventType == "screen_event_t") {
screen_event_t event = static_cast<screen_event_t>(message);
if (MmRendererVideoWindowControl *control = videoWindowControl())
control->screenEventHandler(event);
}
return false;
}
void PpsMediaPlayerControl::ppsReadyRead(int fd)
{
Q_ASSERT(fd == m_ppsStateFd || fd == m_ppsStatusFd);
const int bufferSize = 2048;
char buffer[bufferSize];
const ssize_t nread = qt_safe_read(fd, buffer, bufferSize - 1);
if (nread < 0) {
//TODO emit error?
}
if (nread == 0) {
return;
}
// nread is the real space necessary, not the amount read.
if (static_cast<size_t>(nread) > bufferSize - 1) {
//TODO emit error?
qCritical("BBMediaPlayerControl: PPS buffer size too short; need %u.", nread + 1);
return;
}
buffer[nread] = 0;
pps_decoder_t decoder;
if (pps_decoder_initialize(&decoder, buffer) != PPS_DECODER_OK) {
//TODO emit error?
qCritical("Could not initialize pps_decoder");
pps_decoder_cleanup(&decoder);
return;
}
pps_decoder_push(&decoder, 0);
const char *value = 0;
if (pps_decoder_get_string(&decoder, "bufferstatus", &value) == PPS_DECODER_OK)
setMmBufferStatus(QString::fromLatin1(value));
if (pps_decoder_get_string(&decoder, "bufferlevel", &value) == PPS_DECODER_OK)
setMmBufferLevel(QString::fromLatin1(value));
if (pps_decoder_get_string(&decoder, "state", &value) == PPS_DECODER_OK) {
const QByteArray state = value;
if (state != m_previouslySeenState && state == "stopped")
handleMmStopped();
m_previouslySeenState = state;
}
if (pps_decoder_get_string(&decoder, "position", &value) == PPS_DECODER_OK) {
const QByteArray valueBa = QByteArray(value);
bool ok;
const qint64 position = valueBa.toLongLong(&ok);
if (!ok) {
qCritical("Could not parse position from '%s'", valueBa.constData());
} else {
setMmPosition(position);
}
}
pps_decoder_cleanup(&decoder);
}
QT_END_NAMESPACE
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