From: David Schleef <ds@schleef.org>
Date: Mon, 14 Jul 2003 08:30:45 +0000 (+0000)
Subject: Simple replacement for faster, but broken, algorithm.  Needs to be refixed.
X-Git-Tag: 1.19.3~511^2~15345
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=874eab7a0a830adc8a3609853af432e70066934a;p=platform%2Fupstream%2Fgstreamer.git

Simple replacement for faster, but broken, algorithm.  Needs to be refixed.

Original commit message from CVS:
Simple replacement for faster, but broken, algorithm.  Needs to be
refixed.
---

diff --git a/gst/sine/gstsinesrc.c b/gst/sine/gstsinesrc.c
index 2eee3693e7..a6eb692103 100644
--- a/gst/sine/gstsinesrc.c
+++ b/gst/sine/gstsinesrc.c
@@ -237,7 +237,7 @@ gst_sinesrc_get (GstPad *pad)
   src->timestamp += (gint64)src->samples_per_buffer * GST_SECOND / (gint64)src->samplerate;
    
   while(GST_DPMAN_PROCESS(src->dpman, i)) {
-
+#if 0
     src->table_lookup = (gint)(src->table_pos);
     src->table_lookup_next = src->table_lookup + 1;
     src->table_interp = src->table_pos - src->table_lookup;
@@ -264,6 +264,13 @@ gst_sinesrc_get (GstPad *pad)
                     )
                   )+src->table_data[src->table_lookup]
                  )* src->volume * 32767.0;
+#endif
+    src->accumulator += 2*M_PI*src->freq / src->samplerate;
+    if(src->accumulator >= 2*M_PI){
+      src->accumulator -= 2*M_PI;
+    }
+    samples[i] = sin(src->accumulator) * src->volume * 32767.0;
+
     i++;
   }