From 909da9fb0489c3744547e6386531461c072da5fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim@centricular.net>
Date: Thu, 10 Feb 2005 15:06:13 +0000
Subject: and make it handle more than one channel.

Original commit message from CVS:
Fix speed element and make it chain-based (fixes #156467), and make it handle more than one channel.
---
 gst/speed/filter.func | 60 ---------------------------------------------------
 1 file changed, 60 deletions(-)
 delete mode 100644 gst/speed/filter.func

(limited to 'gst/speed/filter.func')

diff --git a/gst/speed/filter.func b/gst/speed/filter.func
deleted file mode 100644
index 6802b20c..00000000
--- a/gst/speed/filter.func
+++ /dev/null
@@ -1,60 +0,0 @@
-/* -*- Mode: c; c-basic-offset: 2 -*- */ 
-    _FORMAT *in_data, *out_data;
-    static gint64 offset = 0, timestamp = 0;
-
-    /* get a buffer here so that we can have something to interpolate
-     * against for the first few samples if speed < 0.5 */
-    in_data = (_FORMAT*) GST_BUFFER_DATA(in);
-    nin = GST_BUFFER_SIZE(in)/sizeof(_FORMAT);
-    lower = in_data[0];
-    i_float = 0.5 * (speed - 1.0);
-    i = i_float + 1.0; /* ciel(i_float) for ints */
-    
-    do {
-      speed = filter->speed; /* update this, it might have changed */
-      
-      out = gst_buffer_new();
-      GST_BUFFER_DATA(out) = (gchar*) g_new(_FORMAT,SPEED_BUFSIZE/sizeof(_FORMAT));
-      GST_BUFFER_SIZE(out) = SPEED_BUFSIZE;
-      out_data = (_FORMAT*) GST_BUFFER_DATA(out);
-      nout = GST_BUFFER_SIZE(out) / sizeof(_FORMAT);
-      GST_BUFFER_TIMESTAMP (out) = timestamp;
-      offset += nout;
-      timestamp = offset * GST_SECOND / filter->rate;
-      
-      for (j=0; j<nout; j++) {
-        /* index of upper bounds of interpolation for
-         * new sample, got it by trial&error on the chalkboard */
-        i_float += speed;
-        i = i_float + 1.0; /* ciel(i_float) for ints */
-        
-        while (i >= nin) {
-          i = i % nin;
-          i_float = i_float - nin;
-          lower = in_data[nin-1];
-          gst_buffer_unref(in);
-          in = GST_BUFFER (gst_pad_pull (filter->sinkpad));
-          
-          while (GST_IS_EVENT (in)) {
-            gst_pad_event_default (filter->srcpad, GST_EVENT (in));
-            in = GST_BUFFER (gst_pad_pull (filter->sinkpad));
-          }
-          
-          in_data = (_FORMAT*) GST_BUFFER_DATA(in);
-          nin = GST_BUFFER_SIZE(in) / sizeof(_FORMAT);
-        } 
-        
-        if (i>0)
-          lower = in_data[i-1];
-        
-        interp = i_float - floor(i_float);
-        
-        out_data[j] = lower*(1-interp) + in_data[i]*interp;
-        
-        lower = in_data[i];
-      }
-      
-      gst_pad_push(filter->srcpad, GST_DATA (out));
-
-      gst_element_yield (element);
-    } while (TRUE);
-- 
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