Fix T39607: Audio not in synch when the blend file loads.

The problem here was that animation buffers got initialized with zeros in the beginning for unknown parts. Now it gets initialized with the first known value.
The bug's result was that the animation of the pitch started with 0 on first playback and thus any seeking while the pitch is zero resulted in seeking to the beginning.

4 files changed, 29 insertions, 1 deletions

diff --git a/intern/audaspace/intern/AUD_AnimateableProperty.cpp b/intern/audaspace/intern/AUD_AnimateableProperty.cpp
index 61adae4b34b..9f399a0b99f 100644
--- a/intern/audaspace/intern/AUD_AnimateableProperty.cpp
+++ b/intern/audaspace/intern/AUD_AnimateableProperty.cpp
@@ -47,6 +47,23 @@ AUD_AnimateableProperty::AUD_AnimateableProperty(int count) :
 	pthread_mutexattr_destroy(&attr);
 }
 
+AUD_AnimateableProperty::AUD_AnimateableProperty(int count, float value) :
+	AUD_Buffer(count * sizeof(float)), m_count(count), m_isAnimated(false)
+{
+	sample_t* buf = getBuffer();
+
+	for(int i = 0; i < count; i++)
+		buf[i] = value;
+
+	pthread_mutexattr_t attr;
+	pthread_mutexattr_init(&attr);
+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+
+	pthread_mutex_init(&m_mutex, &attr);
+
+	pthread_mutexattr_destroy(&attr);
+}
+
 void AUD_AnimateableProperty::updateUnknownCache(int start, int end)
 {
 	float* buf = getBuffer();
@@ -104,7 +121,8 @@ void AUD_AnimateableProperty::write(const float* data, int position, int count)
 
 		if(pos == 0)
 		{
-			memset(buf, 0, position * m_count * sizeof(float));
+			for(int i = 0; i < position; i++)
+				memcpy(buf + i * m_count, data, m_count * sizeof(float));
 		}
 		else
 			updateUnknownCache(pos, position - 1);
diff --git a/intern/audaspace/intern/AUD_AnimateableProperty.h b/intern/audaspace/intern/AUD_AnimateableProperty.h
index 37eb8f84550..f07e5916b25 100644
--- a/intern/audaspace/intern/AUD_AnimateableProperty.h
+++ b/intern/audaspace/intern/AUD_AnimateableProperty.h
@@ -76,6 +76,13 @@ public:
 	AUD_AnimateableProperty(int count = 1);
 
 	/**
+	 * Creates a new animateable property.
+	 * \param count The count of floats for a single property.
+	 * \param count The value that the property should get initialized with. All count floats will be initialized to the same value.
+	 */
+	AUD_AnimateableProperty(int count, float value);
+
+	/**
 	 * Destroys the animateable property.
 	 */
 	~AUD_AnimateableProperty();
diff --git a/intern/audaspace/intern/AUD_Sequencer.cpp b/intern/audaspace/intern/AUD_Sequencer.cpp
index c59c56a4479..6c5e48c73f0 100644
--- a/intern/audaspace/intern/AUD_Sequencer.cpp
+++ b/intern/audaspace/intern/AUD_Sequencer.cpp
@@ -42,6 +42,7 @@ AUD_Sequencer::AUD_Sequencer(AUD_Specs specs, float fps, bool muted) :
 	m_speed_of_sound(434),
 	m_doppler_factor(1),
 	m_distance_model(AUD_DISTANCE_MODEL_INVERSE_CLAMPED),
+	m_volume(1, 1.0f),
 	m_location(3),
 	m_orientation(4)
 {
diff --git a/intern/audaspace/intern/AUD_SequencerEntry.cpp b/intern/audaspace/intern/AUD_SequencerEntry.cpp
index 005557bbed1..6ef8479cdb8 100644
--- a/intern/audaspace/intern/AUD_SequencerEntry.cpp
+++ b/intern/audaspace/intern/AUD_SequencerEntry.cpp
@@ -53,6 +53,8 @@ AUD_SequencerEntry::AUD_SequencerEntry(boost::shared_ptr<AUD_IFactory> sound, fl
 	m_cone_angle_outer(360),
 	m_cone_angle_inner(360),
 	m_cone_volume_outer(0),
+	m_volume(1, 1.0f),
+	m_pitch(1, 1.0f),
 	m_location(3),
 	m_orientation(4)
 {