[vlc-devel] [PATCH 1/3] qt: add audio devices model
Sagar Kohli
kohli.sagar2 at gmail.com
Wed Jul 17 00:12:43 CEST 2019
---
modules/gui/qt/Makefile.am | 3 +
.../gui/qt/components/audio_device_model.cpp | 154 ++++++++++++++++++
.../gui/qt/components/audio_device_model.hpp | 64 ++++++++
3 files changed, 221 insertions(+)
create mode 100644 modules/gui/qt/components/audio_device_model.cpp
create mode 100644 modules/gui/qt/components/audio_device_model.hpp
diff --git a/modules/gui/qt/Makefile.am b/modules/gui/qt/Makefile.am
index 0e41ca2ddf..dcbea18eb7 100644
--- a/modules/gui/qt/Makefile.am
+++ b/modules/gui/qt/Makefile.am
@@ -110,6 +110,8 @@ libqt_plugin_la_SOURCES = \
gui/qt/components/recent_media_model.hpp \
gui/qt/components/settings.cpp \
gui/qt/components/settings.hpp \
+ gui/qt/components/audio_device_model.cpp \
+ gui/qt/components/audio_device_model.hpp \
gui/qt/components/voutwindow/videosurface.cpp \
gui/qt/components/voutwindow/videosurface.hpp \
gui/qt/components/voutwindow/qvoutwindow.cpp \
@@ -264,6 +266,7 @@ nodist_libqt_plugin_la_SOURCES = \
gui/qt/components/recent_media_model.moc.cpp \
gui/qt/components/selectable_list_model.moc.cpp \
gui/qt/components/settings.moc.cpp \
+ gui/qt/components/audio_device_model.moc.cpp \
gui/qt/components/voutwindow/videosurface.moc.cpp \
gui/qt/components/voutwindow/qvoutwindow.moc.cpp \
gui/qt/components/voutwindow/qvoutwindowdummy.moc.cpp \
diff --git a/modules/gui/qt/components/audio_device_model.cpp b/modules/gui/qt/components/audio_device_model.cpp
new file mode 100644
index 0000000000..3c40047786
--- /dev/null
+++ b/modules/gui/qt/components/audio_device_model.cpp
@@ -0,0 +1,154 @@
+/*****************************************************************************
+ * Copyright (C) 2019 VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * ( at your option ) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#include "audio_device_model.hpp"
+
+extern "C" {
+
+static void on_player_aout_device_changed(vlc_player_t *,const char *device, void *data)
+{
+ AudioDeviceModel* that = static_cast<AudioDeviceModel*>(data);
+ QMetaObject::invokeMethod(that, [that, device=QString::fromUtf8(device)](){
+ that->updateCurrent(device);
+ }, Qt::QueuedConnection, nullptr);
+}
+
+}
+
+static const struct vlc_player_aout_cbs player_aout_cbs = {
+ nullptr,
+ nullptr,
+ on_player_aout_device_changed
+};
+
+AudioDeviceModel::AudioDeviceModel(vlc_player_t *player, QObject *parent)
+ : QAbstractListModel(parent)
+ , m_player(player)
+{
+ {
+ vlc_player_locker locker{m_player};
+ m_player_aout_listener = vlc_player_aout_AddListener(m_player, &player_aout_cbs, this);
+ }
+
+ m_aout = vlc_player_aout_Hold(m_player);
+
+ m_inputs = aout_DevicesList(m_aout, &m_ids, &m_names);
+}
+
+AudioDeviceModel::~AudioDeviceModel()
+{
+ if (m_inputs > 0)
+ {
+ for (int i=0; i<m_inputs; i++){
+ free(m_ids[i]);
+ free(m_names[i]);
+ }
+
+ free(m_ids);
+ free(m_names);
+ }
+
+ vlc_player_locker locker{m_player};
+ vlc_player_aout_RemoveListener(m_player, m_player_aout_listener);
+
+ aout_Release(m_aout);
+
+}
+
+Qt::ItemFlags AudioDeviceModel::flags(const QModelIndex &) const
+{
+ return Qt::ItemIsUserCheckable;
+}
+
+int AudioDeviceModel::rowCount(const QModelIndex &parent) const
+{
+ if (parent.isValid())
+ return 0;
+
+ return m_inputs > 0 ? m_inputs : 0;
+}
+
+QVariant AudioDeviceModel::data(const QModelIndex &index, int role) const
+{
+ int row = index.row();
+ if (!index.isValid())
+ return QVariant();
+ if (row < 0 || row >= m_inputs)
+ return QVariant();
+
+ const char *name = m_names[row];
+ if (role == Qt::DisplayRole)
+ return qfu(name);
+ else if (role == Qt::CheckStateRole)
+ return QVariant::fromValue<bool>((!m_current.isEmpty() && (m_ids[row] == m_current)) ||
+ (m_current.isEmpty() && m_ids[row] && m_ids[row][0] == '\0' )) ;
+
+ return QVariant();
+}
+
+bool AudioDeviceModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+ int row = index.row();
+ if (!index.isValid())
+ return false;
+ if (row < 0 || row >= m_inputs)
+ return false;
+ if (role != Qt::CheckStateRole)
+ return false;
+ if (!value.canConvert<bool>())
+ return false;
+ bool select = value.toBool();
+ if (select)
+ {
+ aout_DeviceSet(m_aout, m_ids[row]);
+ }
+ return true;
+}
+
+void AudioDeviceModel::updateCurrent(QString current)
+{
+ if (current == m_current)
+ return;
+ std::swap(current, m_current);
+
+ int oldIndex = -1;
+ int currentIndex = -1;
+
+ for(int i=0; i<m_inputs; i++)
+ {
+ if(m_ids[i] == m_current){
+ currentIndex = i;
+ }
+ if(m_ids[i] == current){
+ oldIndex = i;
+ }
+ }
+
+ if(oldIndex >= 0)
+ emit dataChanged(index(oldIndex), index(oldIndex), { Qt::DisplayRole, Qt::CheckStateRole });
+ if(currentIndex >= 0)
+ emit dataChanged(index(currentIndex), index(currentIndex), { Qt::DisplayRole, Qt::CheckStateRole });
+}
+
+QHash<int, QByteArray> AudioDeviceModel::roleNames() const
+{
+ return QHash<int, QByteArray>{
+ {Qt::DisplayRole, "display"},
+ {Qt::CheckStateRole, "checked"}
+ };
+}
diff --git a/modules/gui/qt/components/audio_device_model.hpp b/modules/gui/qt/components/audio_device_model.hpp
new file mode 100644
index 0000000000..1721990d5e
--- /dev/null
+++ b/modules/gui/qt/components/audio_device_model.hpp
@@ -0,0 +1,64 @@
+/*****************************************************************************
+ * Copyright (C) 2019 VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * ( at your option ) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef AUDIO_DEVICE_MODEL_HPP
+#define AUDIO_DEVICE_MODEL_HPP
+
+#include <QAbstractListModel>
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "qt.hpp"
+#include <QObject>
+#include <QStringList>
+#include <vlc_aout.h>
+
+class AudioDeviceModel : public QAbstractListModel
+{
+ Q_OBJECT
+
+public:
+ AudioDeviceModel(vlc_player_t *player, QObject *parent = nullptr);
+
+ ~AudioDeviceModel();
+
+ virtual Qt::ItemFlags flags(const QModelIndex &) const override;
+
+ virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+
+ virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+
+ virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
+
+ void updateCurrent(QString current);
+
+ QHash<int, QByteArray> roleNames() const override;
+
+private:
+ int m_inputs;
+ char **m_names;
+ char **m_ids;
+ QString m_current;
+ vlc_player_aout_listener_id* m_player_aout_listener = nullptr;
+ audio_output_t* m_aout = nullptr;
+ vlc_player_t *m_player;
+};
+
+#endif // AUDIO_DEVICE_MODEL_HPP
--
2.17.1
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