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- pa glib/qt eventloop patch (kde#228324)

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epel9
Rex Dieter 15 years ago
parent c97cf26192
commit 1872c16afb
2 changed files with 335 additions and 1 deletions
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327
phonon-4.4.0-eventloop.patch
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@ -0,0 +1,327 @@
diff --git a/phonon/pulsesupport.cpp b/phonon/pulsesupport.cpp
index d0387c3..a3733ad 100644
--- a/phonon/pulsesupport.cpp
+++ b/phonon/pulsesupport.cpp
@@ -135,7 +135,6 @@ static bool s_pulseActive = false;
static pa_glib_mainloop *s_mainloop = NULL;
static pa_context *s_context = NULL;
-static QEventLoop *s_connectionEventloop = NULL;
@@ -179,31 +178,25 @@ static void createGenericDevices()
}
#ifdef HAVE_PULSEAUDIO_DEVICE_MANAGER
-static void ext_device_manager_subscribe_cb(pa_context *, void *);
static void ext_device_manager_read_cb(pa_context *c, const pa_ext_device_manager_info *info, int eol, void *userdata) {
Q_ASSERT(c);
Q_ASSERT(userdata);
- // If this is our first iteration, set things up properly
- if (s_connectionEventloop) {
- logMessage("Exiting connection event loop (PulseAudio server found)");
- s_connectionEventloop->exit(0);
- s_connectionEventloop = NULL;
- s_pulseActive = true;
-
- pa_operation *o;
- pa_ext_device_manager_set_subscribe_cb(c, ext_device_manager_subscribe_cb, NULL);
- if ((o = pa_ext_device_manager_subscribe(c, 1, NULL, NULL)))
- pa_operation_unref(o);
- }
+ PulseUserData *u = reinterpret_cast<PulseUserData*>(userdata);
if (eol < 0) {
logMessage(QString("Failed to initialize device manager extension: %1").arg(pa_strerror(pa_context_errno(c))));
+ logMessage("Falling back to single device mode");
createGenericDevices();
+ delete u;
+
+ // If this is our probe phase, exit now
+ if (s_context != c)
+ pa_context_disconnect(c);
+
return;
}
- PulseUserData *u = reinterpret_cast<PulseUserData*>(userdata);
if (eol) {
// We're done reading the data, so order it by priority and copy it into the
// static variables where it can then be accessed by those classes that need it.
@@ -289,6 +282,8 @@ static void ext_device_manager_read_cb(pa_context *c, const pa_ext_device_manage
}
if (s_instance) {
+ // This wont be emitted durring the connection probe phase
+ // which is intensional
if (output_changed)
s_instance->emitObjectDescriptionChanged(AudioOutputDeviceType);
if (capture_changed)
@@ -323,6 +318,11 @@ static void ext_device_manager_read_cb(pa_context *c, const pa_ext_device_manage
}
}
}
+
+ // If this is our probe phase, exit now as we're finished reading
+ // our device info and can exit and reconnect
+ if (s_context != c)
+ pa_context_disconnect(c);
}
if (!info)
@@ -374,6 +374,19 @@ static void ext_device_manager_read_cb(pa_context *c, const pa_ext_device_manage
}
}
}
+
+static void ext_device_manager_subscribe_cb(pa_context *c, void *) {
+ Q_ASSERT(c);
+
+ pa_operation *o;
+ PulseUserData *u = new PulseUserData;
+ if (!(o = pa_ext_device_manager_read(c, ext_device_manager_read_cb, u))) {
+ logMessage(QString("pa_ext_device_manager_read() failed."));
+ delete u;
+ return;
+ }
+ pa_operation_unref(o);
+}
#endif
void sink_input_cb(pa_context *c, const pa_sink_input_info *i, int eol, void *userdata) {
@@ -515,49 +528,6 @@ static void subscribe_cb(pa_context *c, pa_subscription_event_type_t t, uint32_t
}
-static void ext_device_manager_subscribe_cb(pa_context *c, void *) {
- Q_ASSERT(c);
-
- pa_operation *o;
-#ifdef HAVE_PULSEAUDIO_DEVICE_MANAGER
- PulseUserData *u = new PulseUserData; /** @todo Make some object to receive the info... */
- if (!(o = pa_ext_device_manager_read(c, ext_device_manager_read_cb, u))) {
- // We need to deal with failure on first iteration
- if (s_connectionEventloop) {
- logMessage("Entering connection eventloop (initialisation failed)");
- s_connectionEventloop->exit(0);
- s_connectionEventloop = NULL;
- }
- logMessage(QString("pa_ext_device_manager_read() failed"));
- return;
- }
- pa_operation_unref(o);
-#else
- // If we do not have Device Manager support. We just bail out now
- // and say we are active with our single "devices" for playback and capture
- s_pulseActive = true;
- logMessage("Entering connection eventloop (successfully detected PulseAudio)");
- if (s_connectionEventloop) {
- s_connectionEventloop->exit(0);
- s_connectionEventloop = NULL;
- }
- createGenericDevices();
-#endif
-
-
- // Register for the stream changes...
- pa_context_set_subscribe_callback(c, subscribe_cb, NULL);
-
- if (!(o = pa_context_subscribe(c, (pa_subscription_mask_t)
- (PA_SUBSCRIPTION_MASK_SINK_INPUT|
- PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT), NULL, NULL))) {
- logMessage(QString("pa_context_subscribe() failed"));
- return;
- }
- pa_operation_unref(o);
-}
-
-
static const char* statename(pa_context_state_t state)
{
switch (state)
@@ -581,32 +551,68 @@ static void context_state_callback(pa_context *c, void *)
Q_ASSERT(c);
logMessage(QString("context_state_callback %1").arg(statename(pa_context_get_state(c))));
- switch (pa_context_get_state(c)) {
- case PA_CONTEXT_UNCONNECTED:
- case PA_CONTEXT_CONNECTING:
- case PA_CONTEXT_AUTHORIZING:
- case PA_CONTEXT_SETTING_NAME:
- break;
+ pa_context_state_t state = pa_context_get_state(c);
+ if (state == PA_CONTEXT_READY) {
+ // We've connected to PA, so it is active
+ s_pulseActive = true;
- case PA_CONTEXT_READY:
- // Attempt to load things up
- ext_device_manager_subscribe_cb(c, NULL);
- break;
+ // Attempt to load things up
+ pa_operation *o;
+
+ // 1. Register for the stream changes (except during probe)
+ if (s_context == c) {
+ pa_context_set_subscribe_callback(c, subscribe_cb, NULL);
- case PA_CONTEXT_FAILED:
- s_pulseActive = false;
- if (s_connectionEventloop) {
- logMessage("Entering connection eventloop (connection failed)");
- s_connectionEventloop->exit(0);
- s_connectionEventloop = NULL;
+ if (!(o = pa_context_subscribe(c, (pa_subscription_mask_t)
+ (PA_SUBSCRIPTION_MASK_SINK_INPUT|
+ PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT), NULL, NULL))) {
+ logMessage(QString("pa_context_subscribe() failed"));
+ return;
}
- break;
+ pa_operation_unref(o);
+ }
- case PA_CONTEXT_TERMINATED:
- default:
- s_pulseActive = false;
- /// @todo Deal with reconnection...
- break;
+#ifdef HAVE_PULSEAUDIO_DEVICE_MANAGER
+ // 2a. Attempt to initialise Device Manager info (except during probe)
+ if (s_context == c) {
+ pa_ext_device_manager_set_subscribe_cb(c, ext_device_manager_subscribe_cb, NULL);
+ if (!(o = pa_ext_device_manager_subscribe(c, 1, NULL, NULL))) {
+ logMessage(QString("pa_ext_device_manager_subscribe() failed"));
+ return;
+ }
+ pa_operation_unref(o);
+ }
+
+ // 3. Attempt to read info from Device Manager
+ PulseUserData *u = new PulseUserData;
+ if (!(o = pa_ext_device_manager_read(c, ext_device_manager_read_cb, u))) {
+ logMessage(QString("pa_ext_device_manager_read() failed. Attempting to continue without device manager support"));
+ createGenericDevices();
+ delete u;
+
+ // If this is our probe phase, exit immediately
+ if (s_context != c)
+ pa_context_disconnect(c);
+
+ return;
+ }
+ pa_operation_unref(o);
+
+#else
+ // If we know do not have Device Manager support, we just create our dummy devices now
+ createGenericDevices();
+
+ // If this is our probe phase, exit immediately
+ if (s_context != c)
+ pa_context_disconnect(c);
+#endif
+ } else if (!PA_CONTEXT_IS_GOOD(state)) {
+ /// @todo Deal with reconnection...
+ //logMessage("Connection to PulseAudio lost");
+
+ // If this is our probe phase, exit our context immediately
+ if (s_context != c)
+ pa_context_disconnect(c);
}
}
#endif // HAVE_PULSEAUDIO
@@ -645,27 +651,67 @@ PulseSupport::PulseSupport()
// To allow for easy debugging, give an easy way to disable this pulseaudio check
QString pulseenv = qgetenv("PHONON_PULSEAUDIO_DISABLE");
- if (pulseenv.toInt())
+ if (pulseenv.toInt()) {
+ logMessage("PulseAudio support disabled: PHONON_PULSEAUDIO_DISABLE is set");
+ return;
+ }
+
+ // First of all conenct to PA via simple/blocking means and if that succeeds,
+ // use a fully async integrated mainloop method to connect and get proper support.
+ pa_mainloop *p_test_mainloop;
+ if (!(p_test_mainloop = pa_mainloop_new())) {
+ logMessage("PulseAudio support disabled: Unable to create mainloop");
+ return;
+ }
+
+ pa_context *p_test_context;
+ if (!(p_test_context = pa_context_new(pa_mainloop_get_api(p_test_mainloop), "libphonon-probe"))) {
+ logMessage("PulseAudio support disabled: Unable to create context");
+ pa_mainloop_free(p_test_mainloop);
+ return;
+ }
+
+ logMessage("Probing for PulseAudio...");
+ // (cg) Convert to PA_CONTEXT_NOFLAGS when PulseAudio 0.9.19 is required
+ if (pa_context_connect(p_test_context, NULL, static_cast<pa_context_flags_t>(0), NULL) < 0) {
+ logMessage(QString("PulseAudio support disabled: %1").arg(pa_strerror(pa_context_errno(p_test_context))));
+ pa_context_disconnect(p_test_context);
+ pa_context_unref(p_test_context);
+ pa_mainloop_free(p_test_mainloop);
return;
+ }
+
+ pa_context_set_state_callback(p_test_context, &context_state_callback, NULL);
+ for (;;) {
+ pa_mainloop_iterate(p_test_mainloop, 1, NULL);
+ if (!PA_CONTEXT_IS_GOOD(pa_context_get_state(p_test_context))) {
+ logMessage("PulseAudio probe complete.");
+ break;
+ }
+ }
+ pa_context_disconnect(p_test_context);
+ pa_context_unref(p_test_context);
+ pa_mainloop_free(p_test_mainloop);
+
+ if (!s_pulseActive) {
+ logMessage("PulseAudio support is not available.");
+ return;
+ }
+
+ // If we're still here, PA is available.
+ logMessage("PulseAudio support enabled");
+
+ // Now we connect for real using a proper main loop that we can forget
+ // all about processing.
s_mainloop = pa_glib_mainloop_new(NULL);
Q_ASSERT(s_mainloop);
pa_mainloop_api *api = pa_glib_mainloop_get_api(s_mainloop);
- // We create a simple event loop to allow the glib loop
- // to iterate until we've connected or not to the server.
- s_connectionEventloop = new QEventLoop;
-
- // XXX I don't want to show up in the client list. All I want to know is the list of sources
- // and sinks...
s_context = pa_context_new(api, "libphonon");
// (cg) Convert to PA_CONTEXT_NOFLAGS when PulseAudio 0.9.19 is required
- if (pa_context_connect(s_context, NULL, static_cast<pa_context_flags_t>(0), 0) >= 0) {
- pa_context_set_state_callback(s_context, &context_state_callback, s_connectionEventloop);
- // Now we block until we connect or otherwise...
- logMessage("Entering connection eventloop...");
- s_connectionEventloop->exec();
- }
+ if (pa_context_connect(s_context, NULL, static_cast<pa_context_flags_t>(0), 0) >= 0)
+ pa_context_set_state_callback(s_context, &context_state_callback, NULL);
#endif
}
@@ -681,11 +727,6 @@ PulseSupport::~PulseSupport()
pa_glib_mainloop_free(s_mainloop);
s_mainloop = NULL;
}
-
- if (s_connectionEventloop) {
- delete s_connectionEventloop;
- s_connectionEventloop = NULL;
- }
#endif
}

9
phonon.spec
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@ -4,7 +4,7 @@
Summary: Multimedia framework api Summary: Multimedia framework api
Name: phonon Name: phonon
Version: 4.4.0 Version: 4.4.0
Release: 1%{?dist} Release: 2%{?dist}
Group: System Environment/Libraries Group: System Environment/Libraries
License: LGPLv2+ License: LGPLv2+
URL: http://phonon.kde.org/ URL: http://phonon.kde.org/
@ -28,6 +28,8 @@ Patch53: phonon-4.3.50-phonon-allow-stop-empty-source.patch
Patch57: phonon-4.3.80-pulse-devicemove-rejig.patch Patch57: phonon-4.3.80-pulse-devicemove-rejig.patch
## Upstream patches ## Upstream patches
# https://bugs.kde.org/show_bug.cgi?id=228324#c23
Patch100: phonon-4.4.0-eventloop.patch
BuildRequires: automoc4 >= 0.9.86 BuildRequires: automoc4 >= 0.9.86
BuildRequires: cmake >= 2.6.0 BuildRequires: cmake >= 2.6.0
@ -87,6 +89,8 @@ Provides: %{name}-backend-gst = %{version}-%{release}
%patch53 -p1 -b .phonon-allow-stop-empty-source %patch53 -p1 -b .phonon-allow-stop-empty-source
%patch57 -p1 -b .pulse-devicemove-rejig %patch57 -p1 -b .pulse-devicemove-rejig
%patch100 -p1 -b .eventloop
%build %build
mkdir -p %{_target_platform} mkdir -p %{_target_platform}
@ -191,6 +195,9 @@ gtk-update-icon-cache %{_kde4_iconsdir}/hicolor &> /dev/null ||:
%changelog %changelog
* Wed Mar 17 2010 Rex Dieter <rdieter@fedoraproject.org> - 4.4.0-2
- pa glib/qt eventloop patch (kde#228324)
* Tue Mar 16 2010 Rex Dieter <rdieter@fedoraproject.org> - 4.4.0-1 * Tue Mar 16 2010 Rex Dieter <rdieter@fedoraproject.org> - 4.4.0-1
- phonon-4.4.0 final - phonon-4.4.0 final

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