volume: Implement f64 scaling with orc

This requires orc 0.4.10

diff --git a/gst/volume/gstvolume.c b/gst/volume/gstvolume.c
index fab1787..796210e 100644 (file)
--- a/gst/volume/gstvolume.c
+++ b/gst/volume/gstvolume.c
@@ -502,13 +502,8 @@ volume_process_double (GstVolume * self, gpointer bytes, guint n_bytes)
 {
   gdouble *data = (gdouble *) bytes;
   guint num_samples = n_bytes / sizeof (gdouble);
-  int i;
-
-  gdouble vol = self->current_volume;
 
-  for (i = 0; i < num_samples; i++) {
-    data[i] *= vol;
-  }
+  orc_scalarmultiply_f64_ns (data, self->current_volume, num_samples);
 }
 
 static void

diff --git a/gst/volume/gstvolumeorc.orc b/gst/volume/gstvolumeorc.orc
index 2de5566..c05a2fb 100644 (file)
--- a/gst/volume/gstvolumeorc.orc
+++ b/gst/volume/gstvolumeorc.orc
@@ -1,6 +1,12 @@
 
 .init gst_volume_orc_init
 
+.function orc_scalarmultiply_f64_ns
+.dest 8 d1 double
+.floatparam 8 p1
+
+muld d1, d1, p1
+
 .function orc_scalarmultiply_f32_ns
 .dest 4 d1 float
 .floatparam 4 p1