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Diffstat (limited to 'src/plugins/pulseaudio/qpulseaudioengine.cpp')
| -rw-r--r-- | src/plugins/pulseaudio/qpulseaudioengine.cpp | 482 |
1 files changed, 0 insertions, 482 deletions
diff --git a/src/plugins/pulseaudio/qpulseaudioengine.cpp b/src/plugins/pulseaudio/qpulseaudioengine.cpp deleted file mode 100644 index 653fea57e..000000000 --- a/src/plugins/pulseaudio/qpulseaudioengine.cpp +++ /dev/null @@ -1,482 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** 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 <QtCore/qdebug.h> - -#include <qaudiodeviceinfo.h> -#include "qpulseaudioengine.h" -#include "qaudiodeviceinfo_pulse.h" -#include "qaudiooutput_pulse.h" -#include "qpulsehelpers.h" -#include <sys/types.h> -#include <unistd.h> - -QT_BEGIN_NAMESPACE - -static void serverInfoCallback(pa_context *context, const pa_server_info *info, void *userdata) -{ - if (!info) { - qWarning() << QString("Failed to get server information: %s").arg(pa_strerror(pa_context_errno(context))); - return; - } - -#ifdef DEBUG_PULSE - char ss[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; - - pa_sample_spec_snprint(ss, sizeof(ss), &info->sample_spec); - pa_channel_map_snprint(cm, sizeof(cm), &info->channel_map); - - qDebug() << QString("User name: %1\n" - "Host Name: %2\n" - "Server Name: %3\n" - "Server Version: %4\n" - "Default Sample Specification: %5\n" - "Default Channel Map: %6\n" - "Default Sink: %7\n" - "Default Source: %8\n").arg( - info->user_name, - info->host_name, - info->server_name, - info->server_version, - ss, - cm, - info->default_sink_name, - info->default_source_name); -#endif - - QPulseAudioEngine *pulseEngine = static_cast<QPulseAudioEngine*>(userdata); - pulseEngine->m_serverLock.lockForWrite(); - pulseEngine->m_defaultSink = info->default_sink_name; - pulseEngine->m_defaultSource = info->default_source_name; - pulseEngine->m_serverLock.unlock(); - - pa_threaded_mainloop_signal(pulseEngine->mainloop(), 0); -} - -static void sinkInfoCallback(pa_context *context, const pa_sink_info *info, int isLast, void *userdata) -{ - QPulseAudioEngine *pulseEngine = static_cast<QPulseAudioEngine*>(userdata); - - if (isLast < 0) { - qWarning() << QString("Failed to get sink information: %s").arg(pa_strerror(pa_context_errno(context))); - return; - } - - if (isLast) { - pa_threaded_mainloop_signal(pulseEngine->mainloop(), 0); - return; - } - - Q_ASSERT(info); - -#ifdef DEBUG_PULSE - QMap<pa_sink_state, QString> stateMap; - stateMap[PA_SINK_INVALID_STATE] = "n/a"; - stateMap[PA_SINK_RUNNING] = "RUNNING"; - stateMap[PA_SINK_IDLE] = "IDLE"; - stateMap[PA_SINK_SUSPENDED] = "SUSPENDED"; - - qDebug() << QString("Sink #%1\n" - "\tState: %2\n" - "\tName: %3\n" - "\tDescription: %4\n" - ).arg(QString::number(info->index), - stateMap.value(info->state), - info->name, - info->description); -#endif - - QAudioFormat format = QPulseAudioInternal::sampleSpecToAudioFormat(info->sample_spec); - - QWriteLocker locker(&pulseEngine->m_sinkLock); - pulseEngine->m_preferredFormats.insert(info->name, format); - pulseEngine->m_sinks.insert(info->index, info->name); -} - -static void sourceInfoCallback(pa_context *context, const pa_source_info *info, int isLast, void *userdata) -{ - Q_UNUSED(context); - QPulseAudioEngine *pulseEngine = static_cast<QPulseAudioEngine*>(userdata); - - if (isLast) { - pa_threaded_mainloop_signal(pulseEngine->mainloop(), 0); - return; - } - - Q_ASSERT(info); - -#ifdef DEBUG_PULSE - QMap<pa_source_state, QString> stateMap; - stateMap[PA_SOURCE_INVALID_STATE] = "n/a"; - stateMap[PA_SOURCE_RUNNING] = "RUNNING"; - stateMap[PA_SOURCE_IDLE] = "IDLE"; - stateMap[PA_SOURCE_SUSPENDED] = "SUSPENDED"; - - qDebug() << QString("Source #%1\n" - "\tState: %2\n" - "\tName: %3\n" - "\tDescription: %4\n" - ).arg(QString::number(info->index), - stateMap.value(info->state), - info->name, - info->description); -#endif - - QAudioFormat format = QPulseAudioInternal::sampleSpecToAudioFormat(info->sample_spec); - - QWriteLocker locker(&pulseEngine->m_sourceLock); - pulseEngine->m_preferredFormats.insert(info->name, format); - pulseEngine->m_sources.insert(info->index, info->name); -} - -static void event_cb(pa_context* context, pa_subscription_event_type_t t, uint32_t index, void* userdata) -{ - QPulseAudioEngine *pulseEngine = static_cast<QPulseAudioEngine*>(userdata); - - int type = t & PA_SUBSCRIPTION_EVENT_TYPE_MASK; - int facility = t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK; - - switch (type) { - case PA_SUBSCRIPTION_EVENT_NEW: - case PA_SUBSCRIPTION_EVENT_CHANGE: - switch (facility) { - case PA_SUBSCRIPTION_EVENT_SERVER: { - pa_operation *op = pa_context_get_server_info(context, serverInfoCallback, userdata); - if (op) - pa_operation_unref(op); - else - qWarning("PulseAudioService: failed to get server info"); - break; - } - case PA_SUBSCRIPTION_EVENT_SINK: { - pa_operation *op = pa_context_get_sink_info_by_index(context, index, sinkInfoCallback, userdata); - if (op) - pa_operation_unref(op); - else - qWarning("PulseAudioService: failed to get sink info"); - break; - } - case PA_SUBSCRIPTION_EVENT_SOURCE: { - pa_operation *op = pa_context_get_source_info_by_index(context, index, sourceInfoCallback, userdata); - if (op) - pa_operation_unref(op); - else - qWarning("PulseAudioService: failed to get source info"); - break; - } - default: - break; - } - break; - case PA_SUBSCRIPTION_EVENT_REMOVE: - switch (facility) { - case PA_SUBSCRIPTION_EVENT_SINK: - pulseEngine->m_sinkLock.lockForWrite(); - pulseEngine->m_preferredFormats.remove(pulseEngine->m_sinks.value(index)); - pulseEngine->m_sinks.remove(index); - pulseEngine->m_sinkLock.unlock(); - break; - case PA_SUBSCRIPTION_EVENT_SOURCE: - pulseEngine->m_sourceLock.lockForWrite(); - pulseEngine->m_preferredFormats.remove(pulseEngine->m_sources.value(index)); - pulseEngine->m_sources.remove(index); - pulseEngine->m_sourceLock.unlock(); - break; - default: - break; - } - break; - default: - break; - } -} - -static void contextStateCallbackInit(pa_context *context, void *userdata) -{ - Q_UNUSED(context); -#ifdef DEBUG_PULSE - qDebug() << QPulseAudioInternal::stateToQString(pa_context_get_state(context)); -#endif - QPulseAudioEngine *pulseEngine = reinterpret_cast<QPulseAudioEngine*>(userdata); - pa_threaded_mainloop_signal(pulseEngine->mainloop(), 0); -} - -static void contextStateCallback(pa_context *c, void *userdata) -{ - QPulseAudioEngine *self = reinterpret_cast<QPulseAudioEngine*>(userdata); - pa_context_state_t state = pa_context_get_state(c); - -#ifdef DEBUG_PULSE - qDebug() << QPulseAudioInternal::stateToQString(state); -#endif - - if (state == PA_CONTEXT_FAILED) - QMetaObject::invokeMethod(self, "onContextFailed", Qt::QueuedConnection); -} - -Q_GLOBAL_STATIC(QPulseAudioEngine, pulseEngine); - -QPulseAudioEngine::QPulseAudioEngine(QObject *parent) - : QObject(parent) - , m_mainLoopApi(0) - , m_context(0) - , m_prepared(false) -{ - prepare(); -} - -QPulseAudioEngine::~QPulseAudioEngine() -{ - if (m_prepared) - release(); -} - -void QPulseAudioEngine::prepare() -{ - bool keepGoing = true; - bool ok = true; - - m_mainLoop = pa_threaded_mainloop_new(); - if (m_mainLoop == 0) { - qWarning("PulseAudioService: unable to create pulseaudio mainloop"); - return; - } - - if (pa_threaded_mainloop_start(m_mainLoop) != 0) { - qWarning("PulseAudioService: unable to start pulseaudio mainloop"); - pa_threaded_mainloop_free(m_mainLoop); - m_mainLoop = 0; - return; - } - - m_mainLoopApi = pa_threaded_mainloop_get_api(m_mainLoop); - - lock(); - - m_context = pa_context_new(m_mainLoopApi, QString(QLatin1String("QtPulseAudio:%1")).arg(::getpid()).toLatin1().constData()); - - if (m_context == 0) { - qWarning("PulseAudioService: Unable to create new pulseaudio context"); - pa_threaded_mainloop_unlock(m_mainLoop); - pa_threaded_mainloop_free(m_mainLoop); - m_mainLoop = 0; - onContextFailed(); - return; - } - - pa_context_set_state_callback(m_context, contextStateCallbackInit, this); - - if (pa_context_connect(m_context, 0, (pa_context_flags_t)0, 0) < 0) { - qWarning("PulseAudioService: pa_context_connect() failed"); - pa_context_unref(m_context); - pa_threaded_mainloop_unlock(m_mainLoop); - pa_threaded_mainloop_free(m_mainLoop); - m_mainLoop = 0; - m_context = 0; - return; - } - - pa_threaded_mainloop_wait(m_mainLoop); - - while (keepGoing) { - switch (pa_context_get_state(m_context)) { - case PA_CONTEXT_CONNECTING: - case PA_CONTEXT_AUTHORIZING: - case PA_CONTEXT_SETTING_NAME: - break; - - case PA_CONTEXT_READY: -#ifdef DEBUG_PULSE - qDebug("Connection established."); -#endif - keepGoing = false; - break; - - case PA_CONTEXT_TERMINATED: - qCritical("PulseAudioService: Context terminated."); - keepGoing = false; - ok = false; - break; - - case PA_CONTEXT_FAILED: - default: - qCritical() << QString("PulseAudioService: Connection failure: %1").arg(pa_strerror(pa_context_errno(m_context))); - keepGoing = false; - ok = false; - } - - if (keepGoing) - pa_threaded_mainloop_wait(m_mainLoop); - } - - if (ok) { - pa_context_set_state_callback(m_context, contextStateCallback, this); - - pa_context_set_subscribe_callback(m_context, event_cb, this); - pa_operation *op = pa_context_subscribe(m_context, - pa_subscription_mask_t(PA_SUBSCRIPTION_MASK_SINK | - PA_SUBSCRIPTION_MASK_SOURCE | - PA_SUBSCRIPTION_MASK_SERVER), - NULL, NULL); - if (op) - pa_operation_unref(op); - else - qWarning("PulseAudioService: failed to subscribe to context notifications"); - } else { - pa_context_unref(m_context); - m_context = 0; - } - - unlock(); - - if (ok) { - updateDevices(); - m_prepared = true; - } else { - pa_threaded_mainloop_free(m_mainLoop); - m_mainLoop = 0; - onContextFailed(); - } -} - -void QPulseAudioEngine::release() -{ - if (!m_prepared) - return; - - if (m_context) { - pa_context_disconnect(m_context); - pa_context_unref(m_context); - m_context = 0; - } - - if (m_mainLoop) { - pa_threaded_mainloop_stop(m_mainLoop); - pa_threaded_mainloop_free(m_mainLoop); - m_mainLoop = 0; - } - - m_prepared = false; -} - -void QPulseAudioEngine::updateDevices() -{ - lock(); - - // Get default input and output devices - pa_operation *operation = pa_context_get_server_info(m_context, serverInfoCallback, this); - if (operation) { - while (pa_operation_get_state(operation) == PA_OPERATION_RUNNING) - pa_threaded_mainloop_wait(m_mainLoop); - pa_operation_unref(operation); - } else { - qWarning("PulseAudioService: failed to get server info"); - } - - // Get output devices - operation = pa_context_get_sink_info_list(m_context, sinkInfoCallback, this); - if (operation) { - while (pa_operation_get_state(operation) == PA_OPERATION_RUNNING) - pa_threaded_mainloop_wait(m_mainLoop); - pa_operation_unref(operation); - } else { - qWarning("PulseAudioService: failed to get sink info"); - } - - // Get input devices - operation = pa_context_get_source_info_list(m_context, sourceInfoCallback, this); - if (operation) { - while (pa_operation_get_state(operation) == PA_OPERATION_RUNNING) - pa_threaded_mainloop_wait(m_mainLoop); - pa_operation_unref(operation); - } else { - qWarning("PulseAudioService: failed to get source info"); - } - - unlock(); -} - -void QPulseAudioEngine::onContextFailed() -{ - // Give a chance to the connected slots to still use the Pulse main loop before releasing it. - emit contextFailed(); - - release(); - - // Try to reconnect later - QTimer::singleShot(3000, this, SLOT(prepare())); -} - -QPulseAudioEngine *QPulseAudioEngine::instance() -{ - return pulseEngine(); -} - -QList<QByteArray> QPulseAudioEngine::availableDevices(QAudio::Mode mode) const -{ - QList<QByteArray> devices; - QByteArray defaultDevice; - - m_serverLock.lockForRead(); - - if (mode == QAudio::AudioOutput) { - QReadLocker locker(&m_sinkLock); - devices = m_sinks.values(); - defaultDevice = m_defaultSink; - } else { - QReadLocker locker(&m_sourceLock); - devices = m_sources.values(); - defaultDevice = m_defaultSource; - } - - m_serverLock.unlock(); - - // Swap the default device to index 0 - devices.removeOne(defaultDevice); - devices.prepend(defaultDevice); - - return devices; -} - -QByteArray QPulseAudioEngine::defaultDevice(QAudio::Mode mode) const -{ - return (mode == QAudio::AudioOutput) ? m_defaultSink : m_defaultSource; -} - -QT_END_NAMESPACE |