1 #include "qtcamdevice.h"
2 #include "qtcamviewfinder.h"
3 #include "qtcamconfig.h"
4 #include "qtcamdevice_p.h"
7 #include "qtcamgstreamermessagelistener.h"
9 #include "qtcamimagemode.h"
10 #include "qtcamvideomode.h"
12 QtCamDevice::QtCamDevice(QtCamConfig *config, const QString& name,
13 const QVariant& id, QObject *parent) :
14 QObject(parent), d_ptr(new QtCamDevicePrivate) {
21 d_ptr->cameraBin = gst_element_factory_make("camerabin2", "QtCameraCameraBin");
22 if (!d_ptr->cameraBin) {
23 qCritical() << "Failed to create camerabin";
27 d_ptr->createAndAddElement(d_ptr->conf->audioSource(), "audio-source", "QtCameraAudioSrc");
28 d_ptr->createAndAddVideoSource();
31 0x00000001 /* no-audio-conversion - Do not use audio conversion elements */
32 | 0x00000002 /* no-video-conversion - Do not use video conversion elements */
33 | 0x00000004 /* no-viewfinder-conversion - Do not use viewfinder conversion elements */
34 | 0x00000008; /* no-image-conversion - Do not use image conversion elements */
36 g_object_set(d_ptr->cameraBin, "flags", flags, NULL);
38 d_ptr->setAudioCaptureCaps();
40 // TODO: audio bitrate
41 // TODO: video bitrate
44 // TODO: custom properties for jifmux, mp4mux, audio encoder, video encoder, sink & video source
45 d_ptr->listener = new QtCamGStreamerMessageListener(gst_element_get_bus(d_ptr->cameraBin),
48 QObject::connect(d_ptr->listener, SIGNAL(error(const QString&, int, const QString&)),
49 this, SLOT(_d_error(const QString&, int, const QString&)));
50 QObject::connect(d_ptr->listener, SIGNAL(started()), this, SLOT(_d_started()));
51 QObject::connect(d_ptr->listener, SIGNAL(stopped()), this, SLOT(_d_stopped()));
52 QObject::connect(d_ptr->listener, SIGNAL(stopping()), this, SLOT(_d_stopping()));
54 g_signal_connect(d_ptr->cameraBin, "notify::idle",
55 G_CALLBACK(QtCamDevicePrivate::on_idle_changed), d_ptr);
57 g_signal_connect(d_ptr->wrapperVideoSource, "notify::ready-for-capture",
58 G_CALLBACK(QtCamDevicePrivate::on_ready_for_capture_changed), d_ptr);
60 d_ptr->image = new QtCamImageMode(d_ptr, this);
61 d_ptr->video = new QtCamVideoMode(d_ptr, this);
64 QtCamDevice::~QtCamDevice() {
67 d_ptr->image->deactivate();
68 d_ptr->video->deactivate();
70 delete d_ptr->image; d_ptr->image = 0;
71 delete d_ptr->video; d_ptr->video = 0;
72 delete d_ptr; d_ptr = 0;
75 bool QtCamDevice::setViewfinder(QtCamViewfinder *viewfinder) {
77 qWarning() << "QtCamDevice: pipeline must be stopped before setting a viewfinder";
81 if (d_ptr->viewfinder == viewfinder) {
86 qWarning() << "QtCamDevice: viewfinder cannot be unset.";
90 if (d_ptr->viewfinder) {
91 qWarning() << "QtCamDevice: viewfinder cannot be replaced.";
95 if (!viewfinder->setDevice(this)) {
99 d_ptr->viewfinder = viewfinder;
104 bool QtCamDevice::start() {
106 qWarning() << "Pipeline must be stopped first because of an error.";
110 if (!d_ptr->cameraBin) {
111 qWarning() << "Missing camerabin";
115 if (!d_ptr->viewfinder) {
116 qWarning() << "Viewfinder not set";
124 if (!d_ptr->active) {
125 d_ptr->image->activate();
128 d_ptr->active->applySettings();
132 if (!d_ptr->setViewfinderSink()) {
136 GstStateChangeReturn err = gst_element_set_state(d_ptr->cameraBin, GST_STATE_PLAYING);
137 if (err == GST_STATE_CHANGE_FAILURE) {
138 qWarning() << "Failed to start camera pipeline";
142 // We need to wait for startup to complet. There's a race condition somewhere in the pipeline.
143 // If we set the scene mode to night and update the resolution while starting up
144 // then subdevsrc2 barfs:
145 // streaming task paused, reason not-negotiated (-4)
147 if (err != GST_STATE_CHANGE_ASYNC) {
151 if (gst_element_get_state(d_ptr->cameraBin, &state, 0, GST_CLOCK_TIME_NONE)
152 != GST_STATE_CHANGE_SUCCESS) {
153 // We are seriously screwed up :(
157 if (state != GST_STATE_PLAYING) {
158 // Huh ? Is this even possible ??
165 bool QtCamDevice::stop() {
166 if (!d_ptr->cameraBin) {
171 gst_element_set_state(d_ptr->cameraBin, GST_STATE_NULL);
172 d_ptr->error = false;
177 gst_element_get_state(d_ptr->cameraBin, &state, 0, GST_CLOCK_TIME_NONE);
179 if (state == GST_STATE_NULL) {
188 // First we go to ready:
189 GstStateChangeReturn st = gst_element_set_state(d_ptr->cameraBin, GST_STATE_READY);
190 if (st != GST_STATE_CHANGE_FAILURE) {
192 d_ptr->listener->flushMessages();
196 gst_element_set_state(d_ptr->cameraBin, GST_STATE_NULL);
201 bool QtCamDevice::isRunning() {
202 if (!d_ptr->cameraBin) {
207 GstStateChangeReturn err = gst_element_get_state(d_ptr->cameraBin,
208 &state, 0, GST_CLOCK_TIME_NONE);
210 if (err == GST_STATE_CHANGE_FAILURE || state != GST_STATE_PLAYING) {
217 bool QtCamDevice::isIdle() {
218 if (!d_ptr->cameraBin) {
222 gboolean idle = FALSE;
223 g_object_get(d_ptr->cameraBin, "idle", &idle, NULL);
228 QtCamImageMode *QtCamDevice::imageMode() const {
232 QtCamVideoMode *QtCamDevice::videoMode() const {
236 QtCamMode *QtCamDevice::activeMode() const {
237 return d_ptr->active;
240 QString QtCamDevice::name() const {
244 QVariant QtCamDevice::id() const {
248 QtCamConfig *QtCamDevice::config() const {
252 QtCamGStreamerMessageListener *QtCamDevice::listener() const {
253 return d_ptr->listener;
256 #include "moc_qtcamdevice.cpp"