Adding upstream version 14.2.upstream/14.2upstream

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

1 files changed, 179 insertions, 0 deletions

diff --git a/src/modules/module-position-event-sounds.c b/src/modules/module-position-event-sounds.c
new file mode 100644
index 0000000..dcdfb30
--- /dev/null
+++ b/src/modules/module-position-event-sounds.c
@@ -0,0 +1,179 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2006 Lennart Poettering
+
+  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 <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <pulse/xmalloc.h>
+#include <pulse/volume.h>
+#include <pulse/channelmap.h>
+
+#include <pulsecore/module.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/sink-input.h>
+
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("Position event sounds between L and R depending on the position on screen of the widget triggering them.");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(true);
+
+static const char* const valid_modargs[] = {
+    NULL
+};
+
+struct userdata {
+    pa_hook_slot *sink_input_fixate_hook_slot;
+    const char *name;
+};
+
+static int parse_pos(const char *pos, double *f) {
+
+    if (pa_atod(pos, f) < 0) {
+        pa_log_warn("Failed to parse hpos/vpos property '%s'.", pos);
+        return -1;
+    }
+
+    if (*f < 0.0 || *f > 1.0) {
+        pa_log_debug("Property hpos/vpos out of range %0.2f", *f);
+
+        *f = PA_CLAMP(*f, 0.0, 1.0);
+    }
+
+    return 0;
+}
+
+static pa_hook_result_t sink_input_fixate_hook_callback(pa_core *core, pa_sink_input_new_data *data, struct userdata *u) {
+    const char *hpos, *vpos, *role, *id;
+    double f;
+    char t[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
+    pa_cvolume v;
+
+    pa_assert(data);
+
+    if (!(role = pa_proplist_gets(data->proplist, PA_PROP_MEDIA_ROLE)))
+        return PA_HOOK_OK;
+
+    if (!pa_streq(role, "event"))
+        return PA_HOOK_OK;
+
+    if ((id = pa_proplist_gets(data->proplist, PA_PROP_EVENT_ID))) {
+
+        /* The test sounds should never be positioned in space, since
+         * they might be triggered themselves to configure the speakers
+         * in space, which we don't want to mess up. */
+
+        if (pa_startswith(id, "audio-channel-"))
+            return PA_HOOK_OK;
+
+        if (pa_streq(id, "audio-volume-change"))
+            return PA_HOOK_OK;
+
+        if (pa_streq(id, "audio-test-signal"))
+            return PA_HOOK_OK;
+    }
+
+    if (!(hpos = pa_proplist_gets(data->proplist, PA_PROP_EVENT_MOUSE_HPOS)))
+        hpos = pa_proplist_gets(data->proplist, PA_PROP_WINDOW_HPOS);
+
+    if (!(vpos = pa_proplist_gets(data->proplist, PA_PROP_EVENT_MOUSE_VPOS)))
+        vpos = pa_proplist_gets(data->proplist, PA_PROP_WINDOW_VPOS);
+
+    if (!hpos && !vpos)
+        return PA_HOOK_OK;
+
+    pa_cvolume_reset(&v, data->sink->sample_spec.channels);
+
+    if (hpos) {
+        if (parse_pos(hpos, &f) < 0)
+            return PA_HOOK_OK;
+
+        if (pa_channel_map_can_balance(&data->sink->channel_map)) {
+            pa_log_debug("Positioning event sound '%s' horizontally at %0.2f.", pa_strnull(pa_proplist_gets(data->proplist, PA_PROP_EVENT_ID)), f);
+            pa_cvolume_set_balance(&v, &data->sink->channel_map, f*2.0-1.0);
+        }
+    }
+
+    if (vpos) {
+        if (parse_pos(vpos, &f) < 0)
+            return PA_HOOK_OK;
+
+        if (pa_channel_map_can_fade(&data->sink->channel_map)) {
+            pa_log_debug("Positioning event sound '%s' vertically at %0.2f.", pa_strnull(pa_proplist_gets(data->proplist, PA_PROP_EVENT_ID)), f);
+            pa_cvolume_set_fade(&v, &data->sink->channel_map, f*2.0-1.0);
+        }
+    }
+
+    pa_log_debug("Final volume factor %s.",
+                 pa_cvolume_snprint_verbose(t,
+                                            sizeof(t),
+                                            &v,
+                                            &data->sink->channel_map,
+                                            data->sink->flags & PA_SINK_DECIBEL_VOLUME));
+    pa_sink_input_new_data_add_volume_factor_sink(data, u->name, &v);
+
+    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");
+        goto fail;
+    }
+
+    m->userdata = u = pa_xnew(struct userdata, 1);
+    u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
+
+    pa_modargs_free(ma);
+    u->name = m->name;
+
+    return 0;
+
+fail:
+    pa__done(m);
+
+    return -1;
+}
+
+void pa__done(pa_module*m) {
+    struct userdata* u;
+
+    pa_assert(m);
+
+    if (!(u = m->userdata))
+        return;
+
+    if (u->sink_input_fixate_hook_slot)
+        pa_hook_slot_free(u->sink_input_fixate_hook_slot);
+
+    pa_xfree(u);
+}