summaryrefslogtreecommitdiffstats
path: root/src/plugins/qnx/mediaplayer/mmreventmediaplayercontrol.cpp
blob: aff0bae51ed4a46cd397a8b7aa9981dda1485f19 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
/****************************************************************************
**
** Copyright (C) 2017 QNX Software Systems. All rights reserved.
** 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 "mmreventmediaplayercontrol.h"
#include "mmreventthread.h"
#include "mmrenderervideowindowcontrol.h"

#include <mm/renderer.h>
#include <tuple>

QT_BEGIN_NAMESPACE

static std::tuple<int, int, bool> parseBufferLevel(const QByteArray &value)
{
    const int slashPos = value.indexOf('/');
    if (slashPos <= 0)
        return std::make_tuple(0, 0, false);

    bool ok = false;
    const int level = value.left(slashPos).toInt(&ok);
    if (!ok || level < 0)
        return std::make_tuple(0, 0, false);

    const int capacity = value.mid(slashPos + 1).toInt(&ok);
    if (!ok || capacity < 0)
        return std::make_tuple(0, 0, false);

    return std::make_tuple(level, capacity, true);
}

MmrEventMediaPlayerControl::MmrEventMediaPlayerControl(QObject *parent)
    : MmRendererMediaPlayerControl(parent)
    , m_eventThread(nullptr)
    , m_bufferStatus("")
    , m_bufferLevel(0)
    , m_bufferCapacity(0)
    , m_position(0)
    , m_suspended(false)
    , m_suspendedReason("unknown")
    , m_state(MMR_STATE_IDLE)
    , m_speed(0)
{
    openConnection();
}

MmrEventMediaPlayerControl::~MmrEventMediaPlayerControl()
{
    destroy();
}

void MmrEventMediaPlayerControl::startMonitoring()
{
    m_eventThread = new MmrEventThread(m_context);

    connect(m_eventThread, &MmrEventThread::eventPending,
            this, &MmrEventMediaPlayerControl::readEvents);

    m_eventThread->setObjectName(QStringLiteral("MmrEventThread-") + QString::number(m_id));
    m_eventThread->start();
}

void MmrEventMediaPlayerControl::stopMonitoring()
{
    delete m_eventThread;
    m_eventThread = nullptr;
}

void MmrEventMediaPlayerControl::resetMonitoring()
{
    m_bufferStatus = "";
    m_bufferLevel = 0;
    m_bufferCapacity = 0;
    m_position = 0;
    m_suspended = false;
    m_suspendedReason = "unknown";
    m_state = MMR_STATE_IDLE;
    m_speed = 0;
}

#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
bool MmrEventMediaPlayerControl::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result)
#else
bool MmrEventMediaPlayerControl::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
#endif
{
    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 MmrEventMediaPlayerControl::readEvents()
{
    const mmr_event_t *event;

    while ((event = mmr_event_get(m_context))) {
        if (event->type == MMR_EVENT_NONE)
            break;

        switch (event->type) {
        case MMR_EVENT_STATUS: {
            if (event->data) {
                const strm_string_t *value;
                value = strm_dict_find_rstr(event->data, "bufferstatus");
                if (value) {
                    m_bufferStatus = QByteArray(strm_string_get(value));
                    if (!m_suspended)
                        setMmBufferStatus(m_bufferStatus);
                }

                value = strm_dict_find_rstr(event->data, "bufferlevel");
                if (value) {
                    const char *cstrValue = strm_string_get(value);
                    int level;
                    int capacity;
                    bool ok;
                    std::tie(level, capacity, ok) = parseBufferLevel(QByteArray(cstrValue));
                    if (!ok) {
                        qCritical("Could not parse buffer capacity from '%s'", cstrValue);
                    } else {
                        m_bufferLevel = level;
                        m_bufferCapacity = capacity;
                        setMmBufferLevel(level, capacity);
                    }
                }

                value = strm_dict_find_rstr(event->data, "suspended");
                if (value) {
                    if (!m_suspended) {
                        m_suspended = true;
                        m_suspendedReason = strm_string_get(value);
                        handleMmSuspend(m_suspendedReason);
                    }
                } else if (m_suspended) {
                    m_suspended = false;
                    handleMmSuspendRemoval(m_bufferStatus);
                }
            }

            if (event->pos_str) {
                const QByteArray valueBa = QByteArray(event->pos_str);
                bool ok;
                m_position = valueBa.toLongLong(&ok);
                if (!ok) {
                    qCritical("Could not parse position from '%s'", valueBa.constData());
                } else {
                    setMmPosition(m_position);
                }
            }
            break;
        }
        case MMR_EVENT_STATE: {
            if (event->state == MMR_STATE_PLAYING && m_speed != event->speed) {
                m_speed = event->speed;
                if (m_speed == 0)
                    handleMmPause();
                else
                    handleMmPlay();
            }
            break;
        }
        case MMR_EVENT_METADATA: {
            updateMetaData(event->data);
            break;
        }
        case MMR_EVENT_ERROR:
        case MMR_EVENT_NONE:
        case MMR_EVENT_OVERFLOW:
        case MMR_EVENT_WARNING:
        case MMR_EVENT_PLAYLIST:
        case MMR_EVENT_INPUT:
        case MMR_EVENT_OUTPUT:
        case MMR_EVENT_CTXTPAR:
        case MMR_EVENT_TRKPAR:
        case MMR_EVENT_OTHER: {
            break;
        }
        }

        // Currently, any exit from the playing state is considered a stop (end-of-media).
        // If you ever need to separate end-of-media from things like "stopped unexpectedly"
        // or "stopped because of an error", you'll find that end-of-media is signaled by an
        // MMR_EVENT_ERROR of MMR_ERROR_NONE with state changed to MMR_STATE_STOPPED.
        if (event->state != m_state && m_state == MMR_STATE_PLAYING)
            handleMmStopped();
        m_state = event->state;
    }

    if (m_eventThread)
        m_eventThread->signalRead();
}

QT_END_NAMESPACE