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path: root/debian/patches/0023-pulsecore-propagate-flat-vol-recursively.patch
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From d05d443a084a9a0b34d77cea8af101abd5f57b03 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Marc-Andr=C3=A9=20Lureau?= <marc-andre.lureau@nokia.com>
Date: Tue, 10 Mar 2009 17:43:55 +0200
Subject: [PATCH] pulsecore: propagate flat-vol recursively

---
 src/pulsecore/sink.c |   35 +++++++++++++++++++++++------------
 1 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/src/pulsecore/sink.c b/src/pulsecore/sink.c
index 10f32a9..930a87d 100644
--- a/src/pulsecore/sink.c
+++ b/src/pulsecore/sink.c
@@ -1128,27 +1128,25 @@ void pa_sink_update_flat_volume(pa_sink *s, pa_cvolume *new_volume) {
     update_input_soft_volume(s, new_volume, &s->channel_map);
 }
 
-/* Called from main thread */
-void pa_sink_propagate_flat_volume(pa_sink *s) {
+static void propagate_flat_volume(pa_sink *s, pa_sink *master_sink) {
     pa_sink_input *i;
     uint32_t idx;
 
-    pa_sink_assert_ref(s);
-    pa_assert(PA_SINK_IS_LINKED(s->state));
-    pa_assert(s->flags & PA_SINK_FLAT_VOLUME);
-
-    /* This is called whenever the sink volume changes that is not
-     * caused by a sink input volume change. We need to fix up the
-     * sink input volumes accordingly */
-
     for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
         pa_cvolume sink_volume, new_virtual_volume;
         unsigned c;
 
+        if (i->origin_sink) {
+            /* go recursively on slaved flatten sink
+             * and ignore this intermediate sink-input. */
+            propagate_flat_volume(i->origin_sink, master_sink);
+            continue;
+        }
+
         /* This basically calculates i->virtual_volume := i->relative_volume * s->virtual_volume  */
 
-        sink_volume = s->virtual_volume;
-        pa_cvolume_remap(&sink_volume, &s->channel_map, &i->channel_map);
+        sink_volume = master_sink->virtual_volume;
+        pa_cvolume_remap(&sink_volume, &master_sink->channel_map, &i->channel_map);
 
         for (c = 0; c < i->sample_spec.channels; c++)
             new_virtual_volume.values[c] = pa_sw_volume_from_linear(
@@ -1178,6 +1176,19 @@ void pa_sink_propagate_flat_volume(pa_sink *s) {
 }
 
 /* Called from main thread */
+void pa_sink_propagate_flat_volume(pa_sink *s) {
+
+    pa_sink_assert_ref(s);
+    pa_assert(PA_SINK_IS_LINKED(s->state));
+    pa_assert(s->flags & PA_SINK_FLAT_VOLUME);
+
+    /* This is called whenever the sink volume changes that is not
+     * caused by a sink input volume change. We need to fix up the
+     * sink input volumes accordingly */
+    propagate_flat_volume(s, s);
+}
+
+/* Called from main thread */
 void pa_sink_set_volume(pa_sink *s, const pa_cvolume *volume, pa_bool_t propagate, pa_bool_t sendmsg, pa_bool_t become_reference) {
     pa_bool_t virtual_volume_changed;
 
-- 
1.5.6.3