From bf510cc11109c6344054a527b2d4ae9c14d1882c Mon Sep 17 00:00:00 2001
From: Jaska Uimonen <jaska.uimonen@intel.com>
Date: Thu, 7 Mar 2013 13:41:44 +0200
Subject: [PATCH] add internal corking state for sink-input

---
 src/pulsecore/sink-input.c | 30 +++++++++++++++++++++++++++++-
 src/pulsecore/sink-input.h |  4 ++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
index 58a4f20..adc8a7b 100644
--- a/src/pulsecore/sink-input.c
+++ b/src/pulsecore/sink-input.c
@@ -730,6 +730,9 @@ void pa_sink_input_put(pa_sink_input *i) {
     update_n_corked(i, state);
     i->state = state;
 
+    i->corked = FALSE;
+    i->corked_internal = FALSE;
+
     /* We might need to update the sink's volume if we are in flat volume mode. */
     if (pa_sink_flat_volume_enabled(i->sink))
         pa_sink_set_volume(i->sink, NULL, FALSE, i->save_volume);
@@ -1361,13 +1364,38 @@ void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_p
     }
 }
 
+static void pa_sink_input_cork_really(pa_sink_input *i, pa_bool_t b) {
+    pa_sink_input_assert_ref(i);
+    pa_assert_ctl_context();
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+
+    if (i->corked_internal == FALSE && i->corked == FALSE)
+	b = FALSE;
+    else
+	b = TRUE;
+
+    sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
+}
+
 /* Called from main context */
 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b) {
     pa_sink_input_assert_ref(i);
     pa_assert_ctl_context();
     pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
 
-    sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
+    i->corked = b;
+
+    pa_sink_input_cork_really(i, b);
+}
+
+void pa_sink_input_cork_internal(pa_sink_input *i, pa_bool_t b) {
+    pa_sink_input_assert_ref(i);
+    pa_assert_ctl_context();
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+
+    i->corked_internal = b;
+
+    pa_sink_input_cork_really(i, b);
 }
 
 /* Called from main context */
diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h
index b7686be..9f6516b 100644
--- a/src/pulsecore/sink-input.h
+++ b/src/pulsecore/sink-input.h
@@ -119,6 +119,9 @@ struct pa_sink_input {
     /* for volume ramps */
     pa_cvolume_ramp_int ramp;
 
+    pa_bool_t corked;
+    pa_bool_t corked_internal;
+
     pa_resample_method_t requested_resample_method, actual_resample_method;
 
     /* Returns the chunk of audio data and drops it from the
@@ -343,6 +346,7 @@ implementing the "zero latency" write-through functionality. */
 void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes, pa_bool_t rewrite, pa_bool_t flush, pa_bool_t dont_rewind_render);
 
 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b);
+void pa_sink_input_cork_internal(pa_sink_input *i, pa_bool_t b);
 
 int pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate);
 int pa_sink_input_update_rate(pa_sink_input *i);
-- 
2.7.4