fix unused-but-set-variable warnings with gcc 4.6

https://bugzilla.gnome.org/show_bug.cgi?id=647294

gst/playback/gstplaybasebin.c

@@ -425,7 +425,6 @@ group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
 {
   GstPlayBaseGroup *group;
   gboolean had_active_group;
-  gboolean res;
 
   GROUP_LOCK (play_base_bin);
   group = play_base_bin->building_group;
@@ -486,8 +485,7 @@ group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
 
     setup_substreams (play_base_bin);
     GST_DEBUG_OBJECT (play_base_bin, "Emitting signal");
-    res =
-        GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
+    GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
         (play_base_bin, group);
     GST_DEBUG_OBJECT (play_base_bin, "done");
 
@@ -1167,7 +1165,6 @@ probe_triggered (GstPad * pad, GstEvent * event, gpointer user_data)
   GstPlayBaseGroup *group;
   GstPlayBaseBin *play_base_bin;
   GstStreamInfo *info;
-  gboolean res;
   GstEventType type;
 
   type = GST_EVENT_TYPE (event);
@@ -1231,8 +1228,7 @@ probe_triggered (GstPad * pad, GstEvent * event, gpointer user_data)
       setup_substreams (play_base_bin);
       GST_DEBUG ("switching to next group %p - emitting signal", group);
       /* and signal the new group */
-      res =
-          GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
+      GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
           (play_base_bin, group);
 
       GROUP_UNLOCK (play_base_bin);

gst/subparse/tmplayerparse.c

@@ -84,7 +84,6 @@ tmplayer_parse_line (ParserState * state, const gchar * line, guint line_num)
 {
   GstClockTime ts = GST_CLOCK_TIME_NONE;
   const gchar *text_start = NULL;
-  gboolean multiline = FALSE;
   gchar *ret = NULL;
   gchar divc = '\0';
   guint h, m, s, l = 1;
@@ -94,7 +93,6 @@ tmplayer_parse_line (ParserState * state, const gchar * line, guint line_num)
     GST_LOG ("multiline format %u %u %u %u", h, m, s, l);
     ts = GST_SECOND * ((((h * 60) + m) * 60) + s);
     text_start = strchr (line, '=');
-    multiline = TRUE;
   } else if (sscanf (line, "%u:%02u:%02u%c", &h, &m, &s, &divc) == 4 &&
       (divc == '=' || divc == ':')) {
     GST_LOG ("single line format %u %u %u %u %c", h, m, s, l, divc);

gst/tcp/gstmultifdsink.c

@@ -821,7 +821,7 @@ gst_multi_fd_sink_add_full (GstMultiFdSink * sink, int fd,
   GstTCPClient *client;
   GList *clink;
   GTimeVal now;
-  gint flags, res;
+  gint flags;
   struct stat statbuf;
 
   GST_DEBUG_OBJECT (sink, "[fd %5d] adding client, sync_method %d, "
@@ -876,7 +876,7 @@ gst_multi_fd_sink_add_full (GstMultiFdSink * sink, int fd,
   sink->clients_cookie++;
 
   /* set the socket to non blocking */
-  res = fcntl (fd, F_SETFL, O_NONBLOCK);
+  fcntl (fd, F_SETFL, O_NONBLOCK);
   /* we always read from a client */
   gst_poll_add_fd (sink->fdset, &client->fd);
 
@@ -888,7 +888,7 @@ gst_multi_fd_sink_add_full (GstMultiFdSink * sink, int fd,
     }
   }
   /* figure out the mode, can't use send() for non sockets */
-  res = fstat (fd, &statbuf);
+  fstat (fd, &statbuf);
   if (S_ISSOCK (statbuf.st_mode)) {
     client->is_socket = TRUE;
     setup_dscp_client (sink, client);
@@ -1865,7 +1865,6 @@ gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
     }
     case GST_SYNC_METHOD_BURST_KEYFRAME:
     {
-      gboolean ok;
       gint min_idx, max_idx;
       gint next_syncframe, prev_syncframe;
 
@@ -1877,7 +1876,7 @@ gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
        * NEXT_KEYFRAME.
        */
       /* gather burst limits */
-      ok = count_burst_unit (sink, &min_idx, client->burst_min_unit,
+      count_burst_unit (sink, &min_idx, client->burst_min_unit,
           client->burst_min_value, &max_idx, client->burst_max_unit,
           client->burst_max_value);
 
@@ -1914,7 +1913,6 @@ gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
     }
     case GST_SYNC_METHOD_BURST_WITH_KEYFRAME:
     {
-      gboolean ok;
       gint min_idx, max_idx;
       gint next_syncframe;
 
@@ -1925,7 +1923,7 @@ gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
        * amount of data up 'till min.
        */
       /* gather enough data to burst */
-      ok = count_burst_unit (sink, &min_idx, client->burst_min_unit,
+      count_burst_unit (sink, &min_idx, client->burst_min_unit,
           client->burst_min_value, &max_idx, client->burst_max_unit,
           client->burst_max_value);
 

gst/videoscale/vs_image.c

@@ -85,7 +85,6 @@ vs_image_scale_linear_RGBA (const VSImage * dest, const VSImage * src,
   int y_increment;
   int x_increment;
   int y1;
-  int y2;
   int i;
   int j;
   int x;
@@ -106,7 +105,6 @@ vs_image_scale_linear_RGBA (const VSImage * dest, const VSImage * src,
 #define LINE(x) ((tmpbuf) + (dest_size)*((x)&1))
 
   acc = 0;
-  y2 = -1;
   gst_videoscale_orc_resample_bilinear_u32 (LINE (0), src->pixels,
       0, x_increment, dest->width);
   y1 = 0;
@@ -574,7 +572,6 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
   int j;
   int x;
   int dest_size;
-  int xacc;
 
   if (dest->height == 1)
     y_increment = 0;
@@ -592,7 +589,6 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
   tmp2 = tmpbuf + dest_size;
 
   acc = 0;
-  xacc = 0;
   y2 = -1;
   gst_videoscale_orc_resample_bilinear_u8 (tmp1, src->pixels,
       0, x_increment, dest->width);
@@ -607,7 +603,6 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
       } else if (j == y2) {
         memcpy (dest->pixels + i * dest->stride, tmp2, dest_size);
       } else {
-        xacc = 0;
         gst_videoscale_orc_resample_bilinear_u8 (tmp1,
             src->pixels + j * src->stride, 0, x_increment, dest->width);
         y1 = j;
@@ -616,7 +611,6 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
     } else {
       if (j == y1) {
         if (j + 1 != y2) {
-          xacc = 0;
           gst_videoscale_orc_resample_bilinear_u8 (tmp2,
               src->pixels + (j + 1) * src->stride, 0, x_increment, dest->width);
           y2 = j + 1;
@@ -629,7 +623,6 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
         }
       } else if (j == y2) {
         if (j + 1 != y1) {
-          xacc = 0;
           gst_videoscale_orc_resample_bilinear_u8 (tmp1,
               src->pixels + (j + 1) * src->stride, 0, x_increment, dest->width);
           y1 = j + 1;
@@ -1098,7 +1091,6 @@ vs_image_scale_linear_AYUV64 (const VSImage * dest, const VSImage * src,
   int y_increment;
   int x_increment;
   int y1;
-  int y2;
   int i;
   int j;
   int x;
@@ -1121,7 +1113,6 @@ vs_image_scale_linear_AYUV64 (const VSImage * dest, const VSImage * src,
 #define LINE(x) ((guint16 *)((tmpbuf) + (dest_size)*((x)&1)))
 
   acc = 0;
-  y2 = -1;
   //gst_videoscale_orc_resample_bilinear_u64 (LINE (0), src->pixels,
   //    0, x_increment, dest->width);
   xacc = 0;