From 989e16d36651c9ceea578ee27feb63c0d5b8cae7 Mon Sep 17 00:00:00 2001
From: Xavi Artigas <xartigas@fluendo.com>
Date: Mon, 25 Jun 2012 17:31:35 +0200
Subject: [PATCH] Remove deinterlacing stuff. This is a Color Balance tutorial
 from now on.

---
 gst-sdk/tutorials/playback-tutorial-5.c | 47 +++----------------------
 1 file changed, 5 insertions(+), 42 deletions(-)

diff --git a/gst-sdk/tutorials/playback-tutorial-5.c b/gst-sdk/tutorials/playback-tutorial-5.c
index d89c7f289c..a09f6ab089 100644
--- a/gst-sdk/tutorials/playback-tutorial-5.c
+++ b/gst-sdk/tutorials/playback-tutorial-5.c
@@ -7,11 +7,6 @@ typedef struct _CustomData {
   GMainLoop *loop;
 } CustomData;
   
-/* playbin2 flags */
-typedef enum {
-  GST_PLAY_FLAG_DEINTERLACE   = (1 << 9)
-} GstPlayFlags;
-  
 /* Process a color balance command */
 static void update_color_channel (const gchar *channel_name, gboolean increase, GstColorBalance *cb) {
   gdouble step;
@@ -38,42 +33,17 @@ static void update_color_channel (const gchar *channel_name, gboolean increase,
   if (increase) {
     value = (gint)(value + step);
     if (value > channel->max_value)
-        value = channel->max_value;
+      value = channel->max_value;
   } else {
     value = (gint)(value - step);
     if (value < channel->min_value)
-        value = channel->min_value;
+      value = channel->min_value;
   }
   gst_color_balance_set_value (cb, channel, value);
 }
   
-/* Toggle the deinterlacing flag */
-static void toggle_deinterlace (GstElement *pipeline) {
-  gint flags;
-  gint64 current_position = GST_CLOCK_TIME_NONE;
-  GstFormat format = GST_FORMAT_TIME;
-  
-  /* Find current position, since it will be lost when we stop */
-  gst_element_query_position (pipeline, &format, &current_position);
-  /* Stop */
-  gst_element_set_state (pipeline, GST_STATE_READY);
-  /* Toggle deinterlacing flag (it will be ignored while PLAYING) */
-  g_object_get (pipeline, "flags", &flags, NULL);
-  flags ^= GST_PLAY_FLAG_DEINTERLACE;
-  g_object_set (pipeline, "flags", flags, NULL);
-  /* Resume */
-  gst_element_set_state (pipeline, GST_STATE_PLAYING);
-  /* Wait until the state change takes effect */
-  gst_element_get_state (pipeline, NULL, NULL, GST_CLOCK_TIME_NONE);
-  /* Set current position, if we were able to recover it previously */
-  if (GST_CLOCK_TIME_IS_VALID (current_position)) {
-    gst_element_seek_simple (pipeline, format, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, current_position);
-  }
-}
-  
-/* Output the current values of all Color Balance channels and the Deinterlace flag */
+/* Output the current values of all Color Balance channels */
 static void print_current_values (GstElement *pipeline) {
-  gint flags;
   const GList *channels, *l;
   
   /* Output Color Balance values */
@@ -84,10 +54,7 @@ static void print_current_values (GstElement *pipeline) {
     g_print ("%s: %3d%% ", channel->label,
         100 * (value - channel->min_value) / (channel->max_value - channel->min_value));
   }
-  
-  /* Output Deinterlace flag value */
-  g_object_get (pipeline, "flags", &flags, NULL);
-  g_print ("Deinterlacing: %s\n", flags & GST_PLAY_FLAG_DEINTERLACE ? "ON" : "OFF");
+  g_print ("\n");
 }
   
 /* Process keyboard input */
@@ -111,9 +78,6 @@ static gboolean handle_keyboard (GIOChannel *source, GIOCondition cond, CustomDa
   case 's':
     update_color_channel ("SATURATION", g_ascii_isupper (str[0]), GST_COLOR_BALANCE (data->pipeline));
     break;
-  case 'd':
-    toggle_deinterlace (data->pipeline);
-    break;
   case 'q':
     g_main_loop_quit (data->loop);
     break;
@@ -146,11 +110,10 @@ int main(int argc, char *argv[]) {
     " 'B' to increase brightness, 'b' to decrease brightness\n"
     " 'H' to increase hue, 'h' to decrease hue\n"
     " 'S' to increase saturation, 's' to decrease saturation\n"
-    " 'D' to toggle deinterlacing ON and OFF\n"
     " 'Q' to quit\n");
   
   /* Build the pipeline */
-  data.pipeline = gst_parse_launch ("playbin2 uri=http://docs.gstreamer.com/media/sintel_trailer-480i.avi", NULL);
+  data.pipeline = gst_parse_launch ("playbin2 uri=http://docs.gstreamer.com/media/sintel_trailer-480p.webm", NULL);
   
   /* Add a keyboard watch so we get notified of keystrokes */
 #ifdef _WIN32