Merge pull request #15254 from mrcdk/pitch_scale

Added pitch scale property to AudioStreamPlayer, AudioStreamPlayer2D and AudioStreamPlayer3D

2 files changed, 17 insertions, 1 deletions

diff --git a/scene/2d/audio_stream_player_2d.cpp b/scene/2d/audio_stream_player_2d.cpp
index b11deb08fd..fc67d28a29 100644
--- a/scene/2d/audio_stream_player_2d.cpp
+++ b/scene/2d/audio_stream_player_2d.cpp
@@ -54,7 +54,7 @@ void AudioStreamPlayer2D::_mix_audio() {
 	int buffer_size = mix_buffer.size();
 
 	//mix
-	stream_playback->mix(buffer, 1.0, buffer_size);
+	stream_playback->mix(buffer, pitch_scale, buffer_size);
 
 	//write all outputs
 	for (int i = 0; i < output_count; i++) {
@@ -279,6 +279,13 @@ float AudioStreamPlayer2D::get_volume_db() const {
 	return volume_db;
 }
 
+void AudioStreamPlayer2D::set_pitch_scale(float p_pitch_scale) {
+	pitch_scale = p_pitch_scale;
+}
+float AudioStreamPlayer2D::get_pitch_scale() const {
+	return pitch_scale;
+}
+
 void AudioStreamPlayer2D::play(float p_from_pos) {
 
 	if (stream_playback.is_valid()) {
@@ -419,6 +426,9 @@ void AudioStreamPlayer2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_volume_db", "volume_db"), &AudioStreamPlayer2D::set_volume_db);
 	ClassDB::bind_method(D_METHOD("get_volume_db"), &AudioStreamPlayer2D::get_volume_db);
 
+	ClassDB::bind_method(D_METHOD("set_pitch_scale", "pitch_scale"), &AudioStreamPlayer2D::set_pitch_scale);
+	ClassDB::bind_method(D_METHOD("get_pitch_scale"), &AudioStreamPlayer2D::get_pitch_scale);
+
 	ClassDB::bind_method(D_METHOD("play", "from_position"), &AudioStreamPlayer2D::play, DEFVAL(0.0));
 	ClassDB::bind_method(D_METHOD("seek", "to_position"), &AudioStreamPlayer2D::seek);
 	ClassDB::bind_method(D_METHOD("stop"), &AudioStreamPlayer2D::stop);
@@ -448,6 +458,7 @@ void AudioStreamPlayer2D::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "volume_db", PROPERTY_HINT_RANGE, "-80,24"), "set_volume_db", "get_volume_db");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,32,0.01"), "set_pitch_scale", "get_pitch_scale");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "playing", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_playing", "is_playing");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autoplay"), "set_autoplay", "is_autoplay_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "max_distance", PROPERTY_HINT_RANGE, "1,65536,1"), "set_max_distance", "get_max_distance");
@@ -461,6 +472,7 @@ void AudioStreamPlayer2D::_bind_methods() {
 AudioStreamPlayer2D::AudioStreamPlayer2D() {
 
 	volume_db = 0;
+	pitch_scale = 1.0;
 	autoplay = false;
 	setseek = -1;
 	active = false;
diff --git a/scene/2d/audio_stream_player_2d.h b/scene/2d/audio_stream_player_2d.h
index 39bc985f58..9ae8e3a518 100644
--- a/scene/2d/audio_stream_player_2d.h
+++ b/scene/2d/audio_stream_player_2d.h
@@ -70,6 +70,7 @@ private:
 	volatile float setplay;
 
 	float volume_db;
+	float pitch_scale;
 	bool autoplay;
 	StringName bus;
 
@@ -98,6 +99,9 @@ public:
 	void set_volume_db(float p_volume);
 	float get_volume_db() const;
 
+	void set_pitch_scale(float p_pitch_scale);
+	float get_pitch_scale() const;
+
 	void play(float p_from_pos = 0.0);
 	void seek(float p_seconds);
 	void stop();