Fix compilation for unused but not set

https://bugzilla.gnome.org/show_bug.cgi?id=654572

ext/assrender/gstassrender.c

@@ -570,10 +570,13 @@ blit_i420 (GstAssRender * render, ASS_Image * ass_image, GstBuffer * buffer)
   const guint8 *src;
   guint8 *dst_y, *dst_u, *dst_v;
   gint x, y, w, h;
+/* FIXME ignoring source image stride might be wrong here */
+#if 0
   gint w2;
+  gint src_stride;
+#endif
   gint width = render->width;
   gint height = render->height;
-  gint src_stride;
   gint y_offset, y_stride;
   gint u_offset, u_stride;
   gint v_offset, v_stride;
@@ -609,9 +612,11 @@ blit_i420 (GstAssRender * render, ASS_Image * ass_image, GstBuffer * buffer)
     w = MIN (ass_image->w, width - ass_image->dst_x);
     h = MIN (ass_image->h, height - ass_image->dst_y);
 
+#if 0
     w2 = (w + 1) / 2;
 
     src_stride = ass_image->stride;
+#endif
 
     src = ass_image->bitmap;
     dst_y =

ext/lv2/gstlv2.c

@@ -622,7 +622,6 @@ gst_lv2_setup (GstSignalProcessor * gsp, GstCaps * caps)
   GstLV2Group *group = NULL;
   GstAudioChannelPosition *positions = NULL;
   GstPad *pad;
-  GstCaps *pad_caps;
 
   gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp);
   lv2 = (GstLV2 *) gsp;
@@ -655,7 +654,6 @@ gst_lv2_setup (GstSignalProcessor * gsp, GstCaps * caps)
                     slv2_value_as_string (group->symbol)))) {
           GST_INFO_OBJECT (lv2, "set audio channel positions on sink pad %s",
               slv2_value_as_string (group->symbol));
-          pad_caps = GST_PAD_CAPS (pad);
           s = gst_caps_get_structure (caps, 0);
           gst_audio_set_channel_positions (s, positions);
           gst_object_unref (pad);
@@ -674,7 +672,6 @@ gst_lv2_setup (GstSignalProcessor * gsp, GstCaps * caps)
                     slv2_value_as_string (group->symbol)))) {
           GST_INFO_OBJECT (lv2, "set audio channel positions on src pad %s",
               slv2_value_as_string (group->symbol));
-          pad_caps = GST_PAD_CAPS (pad);
           s = gst_caps_get_structure (caps, 0);
           gst_audio_set_channel_positions (s, positions);
           gst_object_unref (pad);

ext/modplug/gstmodplug.cc

@@ -370,15 +370,20 @@ gst_modplug_src_event (GstPad * pad, GstEvent * event)
       GstSeekType cur_type, stop_type;
       gboolean flush;
       gint64 cur, stop;
+/* FIXME timestamp is set but not used */
+#if 0
       guint64 timestamp;
+#endif
 
       if (modplug->frequency == 0) {
         GST_DEBUG_OBJECT (modplug, "no song loaded yet");
         break;
       }
 
+#if 0
       timestamp = gst_util_uint64_scale_int (modplug->offset, GST_SECOND,
           modplug->frequency);
+#endif
 
       gst_event_parse_seek (event, &rate, &format, &flags,
           &cur_type, &cur, &stop_type, &stop);

ext/sndfile/gstsfsrc.c

@@ -200,7 +200,10 @@ gst_sf_src_create (GstBaseSrc * bsrc, guint64 offset, guint length,
 {
   GstSFSrc *this;
   GstBuffer *buf;
+/* FIXME discont is set but not used */
+#if 0
   gboolean discont = FALSE;
+#endif
   sf_count_t bytes_read;
 
   this = GST_SF_SRC (bsrc);
@@ -221,7 +224,9 @@ gst_sf_src_create (GstBaseSrc * bsrc, guint64 offset, guint length,
       goto seek_failed;
 
     this->offset = offset;
+#if 0
     discont = TRUE;
+#endif
   }
 
   buf = gst_buffer_new_and_alloc (length);

ext/timidity/gsttimidity.c

@@ -108,12 +108,9 @@ gst_timidity_base_init (gpointer gclass)
 static void
 gst_timidity_class_init (GstTimidityClass * klass)
 {
-  GObjectClass *gobject_class;
   GstElementClass *gstelement_class;
 
-  gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
-
   gstelement_class->change_state = gst_timidity_change_state;
 }
 

ext/timidity/gstwildmidi.c

@@ -443,7 +443,10 @@ gst_wildmidi_do_seek (GstWildmidi * wildmidi, GstEvent * event)
   GstSeekFlags flags;
   GstSeekType start_type, stop_type;
   gint64 start, stop;
-  gboolean flush, update, accurate;
+  gboolean flush, update;
+#ifdef HAVE_WILDMIDI_0_2_2
+  gboolean accurate;
+#endif
   gboolean res;
   unsigned long int sample;
   GstSegment *segment;
@@ -472,7 +475,9 @@ gst_wildmidi_do_seek (GstWildmidi * wildmidi, GstEvent * event)
     return res;
 
   flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
+#ifdef HAVE_WILDMIDI_0_2_2
   accurate = ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
+#endif
 
   if (flush) {
     GST_DEBUG ("performing flush");

ext/zbar/gstzbar.c

@@ -277,7 +277,7 @@ gst_zbar_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
 {
   GstZBar *zbar = GST_ZBAR (base);
   guint8 *data;
-  guint size, rowstride;
+  guint rowstride;
   zbar_image_t *image;
   const zbar_symbol_t *symbol;
   int n;
@@ -286,7 +286,6 @@ gst_zbar_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
     goto done;
 
   data = GST_BUFFER_DATA (outbuf);
-  size = GST_BUFFER_SIZE (outbuf);
 
   image = zbar_image_create ();