--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/gstreamer/devicemanager.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,357 @@
+/* This file is part of the KDE project.
+
+ Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+ This library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 2.1 or 3 of the License.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this library. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <gst/interfaces/propertyprobe.h>
+#include "devicemanager.h"
+#include "backend.h"
+#include "gsthelper.h"
+#include "videowidget.h"
+#include "glrenderer.h"
+#include "widgetrenderer.h"
+#include "x11renderer.h"
+#include "artssink.h"
+
+#ifdef USE_ALSASINK2
+#include "alsasink2.h"
+#endif
+
+/*
+ * This class manages the list of currently
+ * active output devices
+ */
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace Gstreamer
+{
+
+AudioDevice::AudioDevice(DeviceManager *manager, const QByteArray &gstId)
+ : gstId(gstId)
+{
+ //get an id
+ static int counter = 0;
+ id = counter++;
+ //get name from device
+ if (gstId == "default") {
+ description = "Default audio device";
+ } else {
+ GstElement *aSink= manager->createAudioSink();
+
+ if (aSink) {
+ gchar *deviceDescription = NULL;
+
+ if (GST_IS_PROPERTY_PROBE(aSink) && gst_property_probe_get_property( GST_PROPERTY_PROBE(aSink), "device" ) ) {
+ g_object_set (G_OBJECT(aSink), "device", gstId.constData(), (const char*)NULL);
+ g_object_get (G_OBJECT(aSink), "device-name", &deviceDescription, (const char*)NULL);
+ description = QByteArray(deviceDescription);
+ g_free (deviceDescription);
+ gst_element_set_state(aSink, GST_STATE_NULL);
+ gst_object_unref (aSink);
+ }
+ }
+ }
+}
+
+DeviceManager::DeviceManager(Backend *backend)
+ : QObject(backend)
+ , m_backend(backend)
+{
+ QSettings settings(QLatin1String("Trolltech"));
+ settings.beginGroup(QLatin1String("Qt"));
+
+ m_audioSink = qgetenv("PHONON_GST_AUDIOSINK");
+ if (m_audioSink.isEmpty()) {
+ m_audioSink = settings.value(QLatin1String("audiosink"), "Auto").toByteArray().toLower();
+ }
+
+ m_videoSinkWidget = qgetenv("PHONON_GST_VIDEOMODE");
+ if (m_videoSinkWidget.isEmpty()) {
+ m_videoSinkWidget = settings.value(QLatin1String("videomode"), "Auto").toByteArray().toLower();
+ }
+
+ if (m_backend->isValid())
+ updateDeviceList();
+}
+
+DeviceManager::~DeviceManager()
+{
+ m_audioDeviceList.clear();
+}
+
+/***
+* Returns a Gst Audiosink based on GNOME configuration settings,
+* or 0 if the element is not available.
+*/
+GstElement *DeviceManager::createGNOMEAudioSink(Category category)
+{
+ GstElement *sink = gst_element_factory_make ("gconfaudiosink", NULL);
+
+ if (sink) {
+
+ // set profile property on the gconfaudiosink to "music and movies"
+ if (g_object_class_find_property (G_OBJECT_GET_CLASS (sink), "profile")) {
+ switch (category) {
+ case NotificationCategory:
+ g_object_set (G_OBJECT (sink), "profile", 0, (const char*)NULL); // 0 = 'sounds'
+ break;
+ case CommunicationCategory:
+ g_object_set (G_OBJECT (sink), "profile", 2, (const char*)NULL); // 2 = 'chat'
+ break;
+ default:
+ g_object_set (G_OBJECT (sink), "profile", 1, (const char*)NULL); // 1 = 'music and movies'
+ break;
+ }
+ }
+ }
+ return sink;
+}
+
+
+bool DeviceManager::canOpenDevice(GstElement *element) const
+{
+ if (!element)
+ return false;
+
+ if (gst_element_set_state(element, GST_STATE_READY) == GST_STATE_CHANGE_SUCCESS)
+ return true;
+
+ const QList<QByteArray> &list = GstHelper::extractProperties(element, "device");
+ foreach (const QByteArray &gstId, list) {
+ GstHelper::setProperty(element, "device", gstId);
+ if (gst_element_set_state(element, GST_STATE_READY) == GST_STATE_CHANGE_SUCCESS) {
+ return true;
+ }
+ }
+ // FIXME: the above can still fail for a valid alsasink because list only contains entries of
+ // the form "hw:X,Y". Would be better to use "default:X" or "dmix:X,Y"
+
+ gst_element_set_state(element, GST_STATE_NULL);
+ return false;
+}
+
+/*
+*
+* Returns a GstElement with a valid audio sink
+* based on the current value of PHONON_GSTREAMER_DRIVER
+*
+* Allowed values are auto (default), alsa, oss, arts and ess
+* does not exist
+*
+* If no real sound sink is available a fakesink will be returned
+*/
+GstElement *DeviceManager::createAudioSink(Category category)
+{
+ GstElement *sink = 0;
+
+ if (m_backend && m_backend->isValid())
+ {
+ if (m_audioSink == "auto") //this is the default value
+ {
+ //### TODO : get equivalent KDE settings here
+
+ if (!qgetenv("GNOME_DESKTOP_SESSION_ID").isEmpty()) {
+ sink = createGNOMEAudioSink(category);
+ if (canOpenDevice(sink))
+ m_backend->logMessage("AudioOutput using gconf audio sink");
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+
+#ifdef USE_ALSASINK2
+ if (!sink) {
+ sink = gst_element_factory_make ("_k_alsasink", NULL);
+ if (canOpenDevice(sink))
+ m_backend->logMessage("AudioOutput using alsa2 audio sink");
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+#endif
+
+ if (!sink) {
+ sink = gst_element_factory_make ("alsasink", NULL);
+ if (canOpenDevice(sink))
+ m_backend->logMessage("AudioOutput using alsa audio sink");
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+
+ if (!sink) {
+ sink = gst_element_factory_make ("autoaudiosink", NULL);
+ if (canOpenDevice(sink))
+ m_backend->logMessage("AudioOutput using auto audio sink");
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+
+ if (!sink) {
+ sink = gst_element_factory_make ("osssink", NULL);
+ if (canOpenDevice(sink))
+ m_backend->logMessage("AudioOutput using oss audio sink");
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+ } else if (m_audioSink == "fake") {
+ //do nothing as a fakesink will be created by default
+ } else if (m_audioSink == "artssink") {
+ sink = GST_ELEMENT(g_object_new(arts_sink_get_type(), NULL));
+ } else if (!m_audioSink.isEmpty()) { //Use a custom sink
+ sink = gst_element_factory_make (m_audioSink, NULL);
+ if (canOpenDevice(sink))
+ m_backend->logMessage(QString("AudioOutput using %0").arg(QString::fromUtf8(m_audioSink)));
+ else if (sink) {
+ gst_object_unref(sink);
+ sink = 0;
+ }
+ }
+ }
+
+ if (!sink) { //no suitable sink found so we'll make a fake one
+ sink = gst_element_factory_make("fakesink", NULL);
+ if (sink) {
+ m_backend->logMessage("AudioOutput Using fake audio sink");
+ //without sync the sink will pull the pipeline as fast as the CPU allows
+ g_object_set (G_OBJECT (sink), "sync", TRUE, (const char*)NULL);
+ }
+ }
+ Q_ASSERT(sink);
+ return sink;
+}
+
+AbstractRenderer *DeviceManager::createVideoRenderer(VideoWidget *parent)
+{
+#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES)
+ if (m_videoSinkWidget == "opengl") {
+ return new GLRenderer(parent);
+ } else
+#endif
+ if (m_videoSinkWidget == "software") {
+ return new WidgetRenderer(parent);
+ }
+#ifndef Q_WS_QWS
+ else if (m_videoSinkWidget == "xwindow") {
+ return new X11Renderer(parent);
+ } else {
+ GstElementFactory *srcfactory = gst_element_factory_find("ximagesink");
+ if (srcfactory) {
+ return new X11Renderer(parent);
+ }
+ }
+#endif
+ return new WidgetRenderer(parent);
+}
+
+/*
+ * Returns a positive device id or -1 if device
+ * does not exist
+ *
+ * The gstId is typically in the format hw:1,0
+ */
+int DeviceManager::deviceId(const QByteArray &gstId) const
+{
+ for (int i = 0 ; i < m_audioDeviceList.size() ; ++i) {
+ if (m_audioDeviceList[i].gstId == gstId) {
+ return m_audioDeviceList[i].id;
+ }
+ }
+ return -1;
+}
+
+/**
+ * Get a human-readable description from a device id
+ */
+QByteArray DeviceManager::deviceDescription(int id) const
+{
+ for (int i = 0 ; i < m_audioDeviceList.size() ; ++i) {
+ if (m_audioDeviceList[i].id == id) {
+ return m_audioDeviceList[i].description;
+ }
+ }
+ return QByteArray();
+}
+
+/**
+ * Updates the current list of active devices
+ */
+void DeviceManager::updateDeviceList()
+{
+ //fetch list of current devices
+ GstElement *audioSink= createAudioSink();
+
+ QList<QByteArray> list;
+
+ if (audioSink) {
+ list = GstHelper::extractProperties(audioSink, "device");
+ list.prepend("default");
+
+ for (int i = 0 ; i < list.size() ; ++i) {
+ QByteArray gstId = list.at(i);
+ if (deviceId(gstId) == -1) {
+ // This is a new device, add it
+ m_audioDeviceList.append(AudioDevice(this, gstId));
+ emit deviceAdded(deviceId(gstId));
+ m_backend->logMessage(QString("Found new audio device %0").arg(QString::fromUtf8(gstId)), Backend::Debug, this);
+ }
+ }
+
+ if (list.size() < m_audioDeviceList.size()) {
+ //a device was removed
+ for (int i = m_audioDeviceList.size() -1 ; i >= 0 ; --i) {
+ QByteArray currId = m_audioDeviceList[i].gstId;
+ bool found = false;
+ for (int k = list.size() -1 ; k >= 0 ; --k) {
+ if (currId == list[k]) {
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ m_backend->logMessage(QString("Audio device lost %0").arg(QString::fromUtf8(currId)), Backend::Debug, this);
+ emit deviceRemoved(deviceId(currId));
+ m_audioDeviceList.removeAt(i);
+ }
+ }
+ }
+ }
+
+ gst_element_set_state (audioSink, GST_STATE_NULL);
+ gst_object_unref (audioSink);
+}
+
+/**
+ * Returns a list of hardware id usable by gstreamer [i.e hw:1,0]
+ */
+const QList<AudioDevice> DeviceManager::audioOutputDevices() const
+{
+ return m_audioDeviceList;
+}
+
+}
+}
+
+QT_END_NAMESPACE