2 * This file is part of CameraPlus.
4 * Copyright (C) 2012 Mohammed Sameer <msameer@foolab.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "qtcamdevice.h"
22 #include "qtcamviewfinder.h"
23 #include "qtcamconfig.h"
24 #include "qtcamdevice_p.h"
27 #include "qtcamgstreamermessagelistener.h"
28 #include "qtcammode.h"
29 #include "qtcamimagemode.h"
30 #include "qtcamvideomode.h"
31 #include "qtcamnotifications.h"
32 #include "gst/gstcopy.h"
33 #include "qtcampropertysetter.h"
34 #include "qtcamanalysisbin.h"
36 QtCamDevice::QtCamDevice(QtCamConfig *config, const QString& name,
37 const QVariant& id, QObject *parent) :
38 QObject(parent), d_ptr(new QtCamDevicePrivate) {
40 static gboolean register_copy = TRUE;
42 qt_cam_copy_register();
43 register_copy = FALSE;
51 d_ptr->cameraBin = gst_element_factory_make("camerabin2", "QtCameraCameraBin");
52 if (!d_ptr->cameraBin) {
53 qCritical() << "Failed to create camerabin";
57 d_ptr->propertySetter = new QtCamPropertySetter(d_ptr);
59 d_ptr->createAndAddElement(d_ptr->conf->audioSource(), "audio-source", "QtCameraAudioSrc");
60 if (!d_ptr->conf->wrapperVideoSource().isEmpty() &&
61 !d_ptr->conf->wrapperVideoSourceProperty().isEmpty()) {
62 d_ptr->createAndAddVideoSourceAndWrapper();
65 d_ptr->createAndAddVideoSource();
69 0x00000001 /* no-audio-conversion - Do not use audio conversion elements */
70 | 0x00000002 /* no-video-conversion - Do not use video conversion elements */
71 | 0x00000004 /* no-viewfinder-conversion - Do not use viewfinder conversion elements */
72 | 0x00000008; /* no-image-conversion - Do not use image conversion elements */
74 g_object_set(d_ptr->cameraBin, "flags", flags, NULL);
76 d_ptr->setAudioCaptureCaps();
78 QStringList viewfinderFilters = d_ptr->conf->viewfinderFilters();
79 if (!viewfinderFilters.isEmpty()) {
80 d_ptr->viewfinderFilters =
81 QtCamAnalysisBin::create(viewfinderFilters, "QtCamViewfinderFilters");
83 if (!d_ptr->viewfinderFilters) {
84 qWarning() << "Failed to create viewfinder filters";
87 g_object_set(d_ptr->cameraBin, "viewfinder-filter", d_ptr->viewfinderFilters->bin(), NULL);
91 d_ptr->listener = new QtCamGStreamerMessageListener(gst_element_get_bus(d_ptr->cameraBin),
94 QObject::connect(d_ptr->listener, SIGNAL(error(const QString&, int, const QString&)),
95 this, SLOT(_d_error(const QString&, int, const QString&)));
96 QObject::connect(d_ptr->listener, SIGNAL(started()), this, SLOT(_d_started()));
97 QObject::connect(d_ptr->listener, SIGNAL(stopped()), this, SLOT(_d_stopped()));
98 QObject::connect(d_ptr->listener, SIGNAL(stopping()), this, SLOT(_d_stopping()));
100 g_signal_connect(d_ptr->cameraBin, "notify::idle",
101 G_CALLBACK(QtCamDevicePrivate::on_idle_changed), d_ptr);
103 g_signal_connect(d_ptr->wrapperVideoSource, "notify::ready-for-capture",
104 G_CALLBACK(QtCamDevicePrivate::on_ready_for_capture_changed), d_ptr);
106 d_ptr->image = new QtCamImageMode(d_ptr, this);
107 d_ptr->video = new QtCamVideoMode(d_ptr, this);
109 d_ptr->notifications = new QtCamNotifications(this, this);
112 QtCamDevice::~QtCamDevice() {
115 d_ptr->image->deactivate();
116 d_ptr->video->deactivate();
118 delete d_ptr->image; d_ptr->image = 0;
119 delete d_ptr->video; d_ptr->video = 0;
121 delete d_ptr->propertySetter;
123 delete d_ptr->viewfinderFilters;
125 if (d_ptr->cameraBin) {
126 gst_object_unref(d_ptr->cameraBin);
129 delete d_ptr; d_ptr = 0;
132 bool QtCamDevice::setViewfinder(QtCamViewfinder *viewfinder) {
134 qWarning() << "QtCamDevice: pipeline must be stopped before setting a viewfinder";
138 if (d_ptr->viewfinder == viewfinder) {
143 qWarning() << "QtCamDevice: viewfinder cannot be unset.";
147 if (d_ptr->viewfinder) {
148 qWarning() << "QtCamDevice: viewfinder cannot be replaced.";
152 if (!viewfinder->setDevice(this)) {
156 d_ptr->viewfinder = viewfinder;
161 QtCamViewfinder *QtCamDevice::viewfinder() const {
162 return d_ptr->viewfinder;
165 bool QtCamDevice::start() {
167 qWarning() << "Pipeline must be stopped first because of an error.";
171 if (!d_ptr->cameraBin) {
172 qWarning() << "Missing camerabin";
176 if (!d_ptr->viewfinder) {
177 qWarning() << "Viewfinder not set";
185 if (!d_ptr->active) {
186 d_ptr->image->activate();
189 d_ptr->active->applySettings();
193 if (!d_ptr->setViewfinderSink()) {
197 GstStateChangeReturn err = gst_element_set_state(d_ptr->cameraBin, GST_STATE_PLAYING);
198 if (err == GST_STATE_CHANGE_FAILURE) {
199 qWarning() << "Failed to start camera pipeline";
203 // We need to wait for startup to complet. There's a race condition somewhere in the pipeline.
204 // If we set the scene mode to night and update the resolution while starting up
205 // then subdevsrc2 barfs:
206 // streaming task paused, reason not-negotiated (-4)
208 if (err != GST_STATE_CHANGE_ASYNC) {
212 if (gst_element_get_state(d_ptr->cameraBin, &state, 0, GST_CLOCK_TIME_NONE)
213 != GST_STATE_CHANGE_SUCCESS) {
214 // We are seriously screwed up :(
218 if (state != GST_STATE_PLAYING) {
219 // Huh ? Is this even possible ??
226 bool QtCamDevice::stop(bool force) {
227 if (!d_ptr->cameraBin) {
232 gst_element_set_state(d_ptr->cameraBin, GST_STATE_NULL);
233 d_ptr->error = false;
235 d_ptr->viewfinder->stop();
241 gst_element_get_state(d_ptr->cameraBin, &state, 0, GST_CLOCK_TIME_NONE);
243 if (state == GST_STATE_NULL) {
254 // First we go to ready:
255 GstStateChangeReturn st = gst_element_set_state(d_ptr->cameraBin, GST_STATE_READY);
256 if (st != GST_STATE_CHANGE_FAILURE) {
258 d_ptr->listener->flushMessages();
262 gst_element_set_state(d_ptr->cameraBin, GST_STATE_NULL);
264 d_ptr->viewfinder->stop();
269 bool QtCamDevice::isRunning() {
270 if (!d_ptr->cameraBin) {
275 GstStateChangeReturn err = gst_element_get_state(d_ptr->cameraBin,
276 &state, 0, GST_CLOCK_TIME_NONE);
278 if (err == GST_STATE_CHANGE_FAILURE || state != GST_STATE_PLAYING) {
285 bool QtCamDevice::isIdle() {
286 if (!d_ptr->cameraBin) {
290 gboolean idle = FALSE;
291 g_object_get(d_ptr->cameraBin, "idle", &idle, NULL);
296 QtCamImageMode *QtCamDevice::imageMode() const {
300 QtCamVideoMode *QtCamDevice::videoMode() const {
304 QtCamMode *QtCamDevice::activeMode() const {
305 return d_ptr->active;
308 QString QtCamDevice::name() const {
312 QVariant QtCamDevice::id() const {
316 QtCamConfig *QtCamDevice::config() const {
320 QtCamGStreamerMessageListener *QtCamDevice::listener() const {
321 return d_ptr->listener;
324 QtCamNotifications *QtCamDevice::notifications() const {
325 return d_ptr->notifications;
328 #include "moc_qtcamdevice.cpp"