Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 249 insertions, 0 deletions

diff --git a/src/modules/module-switch-on-connect.c b/src/modules/module-switch-on-connect.c
new file mode 100644
index 0000000..950ecbe
--- /dev/null
+++ b/src/modules/module-switch-on-connect.c
@@ -0,0 +1,249 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2006 Lennart Poettering
+  Copyright 2009 Canonical Ltd
+
+  PulseAudio 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 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core.h>
+#include <pulsecore/sink-input.h>
+#include <pulsecore/source-output.h>
+#include <pulsecore/source.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/core-util.h>
+
+/* Ignore HDMI devices by default. HDMI monitors don't necessarily have audio
+ * output on them, and even if they do, waking up from sleep or changing
+ * monitor resolution may appear as a plugin event, which causes trouble if the
+ * user doesn't want to use the monitor for audio. */
+#define DEFAULT_BLACKLIST "hdmi"
+
+PA_MODULE_AUTHOR("Michael Terry");
+PA_MODULE_DESCRIPTION("When a sink/source is added, switch to it or conditionally switch to it");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(true);
+PA_MODULE_USAGE(
+        "only_from_unavailable=<boolean, only switch from unavailable ports> "
+        "ignore_virtual=<boolean, ignore new virtual sinks and sources, defaults to true> "
+        "blacklist=<regex, ignore matching devices> "
+);
+
+static const char* const valid_modargs[] = {
+    "only_from_unavailable",
+    "ignore_virtual",
+    "blacklist",
+    NULL,
+};
+
+struct userdata {
+    bool only_from_unavailable;
+    bool ignore_virtual;
+    char *blacklist;
+};
+
+static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
+    const char *s;
+    struct userdata *u = userdata;
+
+    pa_assert(c);
+    pa_assert(sink);
+    pa_assert(userdata);
+
+    /* Don't want to run during startup or shutdown */
+    if (c->state != PA_CORE_RUNNING)
+        return PA_HOOK_OK;
+
+    pa_log_debug("Trying to switch to new sink %s", sink->name);
+
+    /* Don't switch to any internal devices except HDMI */
+    s = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_STRING);
+    if (s && !pa_startswith(s, "hdmi")) {
+        s = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_BUS);
+        if (pa_safe_streq(s, "pci") || pa_safe_streq(s, "isa")) {
+            pa_log_debug("Refusing to switch to sink on %s bus", s);
+            return PA_HOOK_OK;
+        }
+    }
+
+    /* Ignore sinks matching the blacklist regex */
+    if (u->blacklist && (pa_match(u->blacklist, sink->name) > 0)) {
+        pa_log_info("Refusing to switch to blacklisted sink %s", sink->name);
+        return PA_HOOK_OK;
+    }
+
+    /* Ignore virtual sinks if not configured otherwise on the command line */
+    if (u->ignore_virtual && !(sink->flags & PA_SINK_HARDWARE)) {
+        pa_log_debug("Refusing to switch to virtual sink");
+        return PA_HOOK_OK;
+    }
+
+    /* No default sink, nothing to move away, just set the new default */
+    if (!c->default_sink) {
+        pa_core_set_configured_default_sink(c, sink->name);
+        return PA_HOOK_OK;
+    }
+
+    if (c->default_sink == sink) {
+        pa_log_debug("%s already is the default sink", sink->name);
+        return PA_HOOK_OK;
+    }
+
+    if (u->only_from_unavailable)
+        if (!c->default_sink->active_port || c->default_sink->active_port->available != PA_AVAILABLE_NO) {
+            pa_log_debug("Current default sink is available and module argument only_from_unavailable was set");
+            return PA_HOOK_OK;
+        }
+
+    /* Actually do the switch to the new sink */
+    pa_core_set_configured_default_sink(c, sink->name);
+
+    return PA_HOOK_OK;
+}
+
+static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source, void* userdata) {
+    const char *s;
+    struct userdata *u = userdata;
+
+    pa_assert(c);
+    pa_assert(source);
+    pa_assert(userdata);
+
+    /* Don't want to run during startup or shutdown */
+    if (c->state != PA_CORE_RUNNING)
+        return PA_HOOK_OK;
+
+    /* Don't switch to a monitoring source */
+    if (source->monitor_of)
+        return PA_HOOK_OK;
+
+    pa_log_debug("Trying to switch to new source %s", source->name);
+
+    /* Don't switch to any internal devices */
+    s = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_BUS);
+    if (pa_safe_streq(s, "pci") || pa_safe_streq(s, "isa")) {
+        pa_log_debug("Refusing to switch to source on %s bus", s);
+        return PA_HOOK_OK;
+    }
+
+    /* Ignore sources matching the blacklist regex */
+    if (u->blacklist && (pa_match(u->blacklist, source->name) > 0)) {
+        pa_log_info("Refusing to switch to blacklisted source %s", source->name);
+        return PA_HOOK_OK;
+    }
+
+    /* Ignore virtual sources if not configured otherwise on the command line */
+    if (u->ignore_virtual && !(source->flags & PA_SOURCE_HARDWARE)) {
+        pa_log_debug("Refusing to switch to virtual source");
+        return PA_HOOK_OK;
+    }
+
+    /* No default source, nothing to move away, just set the new default */
+    if (!c->default_source) {
+        pa_core_set_configured_default_source(c, source->name);
+        return PA_HOOK_OK;
+    }
+
+    if (c->default_source == source) {
+        pa_log_debug("%s already is the default source", source->name);
+        return PA_HOOK_OK;
+    }
+
+    if (u->only_from_unavailable)
+        if (!c->default_source->active_port || c->default_source->active_port->available != PA_AVAILABLE_NO) {
+            pa_log_debug("Current default source is available and module argument only_from_unavailable was set");
+            return PA_HOOK_OK;
+        }
+
+    /* Actually do the switch to the new source */
+    pa_core_set_configured_default_source(c, source->name);
+
+    return PA_HOOK_OK;
+}
+
+int pa__init(pa_module*m) {
+    pa_modargs *ma;
+    struct userdata *u;
+
+    pa_assert(m);
+
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+        pa_log("Failed to parse module arguments");
+        return -1;
+    }
+
+    m->userdata = u = pa_xnew0(struct userdata, 1);
+
+    pa_module_hook_connect(m, &m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE+30, (pa_hook_cb_t) sink_put_hook_callback, u);
+    pa_module_hook_connect(m, &m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_LATE+20, (pa_hook_cb_t) source_put_hook_callback, u);
+
+    if (pa_modargs_get_value_boolean(ma, "only_from_unavailable", &u->only_from_unavailable) < 0) {
+        pa_log("Failed to get a boolean value for only_from_unavailable.");
+        goto fail;
+    }
+
+    u->ignore_virtual = true;
+    if (pa_modargs_get_value_boolean(ma, "ignore_virtual", &u->ignore_virtual) < 0) {
+        pa_log("Failed to get a boolean value for ignore_virtual.");
+        goto fail;
+    }
+
+    u->blacklist = pa_xstrdup(pa_modargs_get_value(ma, "blacklist", DEFAULT_BLACKLIST));
+
+    /* An empty string disables all blacklisting. */
+    if (!*u->blacklist) {
+        pa_xfree(u->blacklist);
+        u->blacklist = NULL;
+    }
+
+    if (u->blacklist != NULL && !pa_is_regex_valid(u->blacklist)) {
+        pa_log_error("A blacklist pattern was provided but is not a valid regex");
+        pa_xfree(u->blacklist);
+        goto fail;
+    }
+
+    pa_modargs_free(ma);
+    return 0;
+
+fail:
+    if (ma)
+        pa_modargs_free(ma);
+
+    pa__done(m);
+
+    return -1;
+}
+
+void pa__done(pa_module*m) {
+    struct userdata *u;
+
+    pa_assert(m);
+
+    if (!(u = m->userdata))
+        return;
+
+    if (u->blacklist)
+        pa_xfree(u->blacklist);
+
+    pa_xfree(u);
+}