moving stuff

Original commit message from CVS:
moving stuff

2 files changed, 538 insertions, 0 deletions

diff --git a/examples/seeking/Makefile.am b/examples/seeking/Makefile.am
new file mode 100644
index 00000000..ec73f0e2
--- /dev/null
+++ b/examples/seeking/Makefile.am
@@ -0,0 +1,7 @@
+examples = seek
+
+noinst_PROGRAMS = $(examples)
+
+# we have nothing but apps here, we can do this safely
+LIBS = $(GST_LIBS) $(GTK_LIBS)
+CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
diff --git a/examples/seeking/seek.c b/examples/seeking/seek.c
new file mode 100644
index 00000000..50a311cd
--- /dev/null
+++ b/examples/seeking/seek.c
@@ -0,0 +1,531 @@
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <gst/gst.h>
+#include <string.h>
+
+static GList *seekables = NULL;
+static GList *rate_pads = NULL;
+
+static GstElement *pipeline;
+static guint64 duration, position;
+static GtkAdjustment *adjustment;
+
+static guint update_id;
+
+#define UPDATE_INTERVAL 500
+
+#define THREAD
+
+typedef struct
+{
+  const gchar 	*padname;
+  GstPad 	*target;
+  GstElement 	*bin;
+} dyn_connect;
+
+static void
+dynamic_connect (GstPadTemplate *templ, GstPad *newpad, gpointer data)
+{
+  dyn_connect *connect = (dyn_connect *) data;
+
+  if (!strcmp (gst_pad_get_name (newpad), connect->padname)) {
+    gst_element_set_state (pipeline, GST_STATE_PAUSED);
+    gst_bin_add (GST_BIN (pipeline), connect->bin);
+    gst_pad_connect (newpad, connect->target);
+    gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+    seekables = g_list_prepend (seekables, newpad);
+    rate_pads = g_list_prepend (rate_pads, newpad);
+  }
+}
+
+static void
+setup_dynamic_connection (GstElement *element, const gchar *padname, GstPad *target, GstElement *bin)
+{
+  dyn_connect *connect;
+
+  connect = g_new0 (dyn_connect, 1);
+  connect->padname 	= g_strdup (padname);
+  connect->target 	= target;
+  connect->bin 		= bin;
+
+  g_signal_connect (G_OBJECT (element), "new_pad", G_CALLBACK (dynamic_connect), connect);
+}
+
+static GstElement*
+make_parse_pipeline (const gchar *location) 
+{
+  GstElement *pipeline;
+  GstElement *src, *parser, *fakesink;
+  GstPad *seekable;
+  
+  pipeline = gst_pipeline_new ("app");
+
+  src = gst_element_factory_make ("filesrc", "src");
+  parser = gst_element_factory_make ("mpegparse", "parse");
+  fakesink = gst_element_factory_make ("fakesink", "sink");
+  g_object_set (G_OBJECT (fakesink), "sync", TRUE, NULL);
+
+  g_object_set (G_OBJECT (src), "location", location, NULL);
+
+  gst_bin_add (GST_BIN (pipeline), src);
+  gst_bin_add (GST_BIN (pipeline), parser);
+  gst_bin_add (GST_BIN (pipeline), fakesink);
+
+  gst_element_connect (src, parser);
+  gst_element_connect (parser, fakesink);
+
+  seekable = gst_element_get_pad (parser, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (parser, "sink"));
+
+  return pipeline;
+}
+
+static GstElement*
+make_mp3_pipeline (const gchar *location) 
+{
+  GstElement *pipeline;
+  GstElement *src, *decoder, *osssink;
+  GstPad *seekable;
+  
+  pipeline = gst_pipeline_new ("app");
+
+  src = gst_element_factory_make ("filesrc", "src");
+  decoder = gst_element_factory_make ("mad", "dec");
+  osssink = gst_element_factory_make ("osssink", "sink");
+
+  g_object_set (G_OBJECT (src), "location", location, NULL);
+  g_object_set (G_OBJECT (osssink), "fragment", 0x00180008, NULL);
+
+  gst_bin_add (GST_BIN (pipeline), src);
+  gst_bin_add (GST_BIN (pipeline), decoder);
+  gst_bin_add (GST_BIN (pipeline), osssink);
+
+  gst_element_connect (src, decoder);
+  gst_element_connect (decoder, osssink);
+
+  seekable = gst_element_get_pad (decoder, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (decoder, "sink"));
+
+  return pipeline;
+}
+
+static GstElement*
+make_avi_pipeline (const gchar *location) 
+{
+  GstElement *pipeline, *audio_bin, *video_bin;
+  GstElement *src, *demux, *a_decoder, *v_decoder, *audiosink, *videosink;
+  GstElement *a_queue = NULL, *audio_thread = NULL, *v_queue = NULL, *video_thread = NULL;
+  GstPad *seekable;
+  
+  pipeline = gst_pipeline_new ("app");
+
+  src = gst_element_factory_make ("filesrc", "src");
+  g_object_set (G_OBJECT (src), "location", location, NULL);
+
+  demux = gst_element_factory_make ("avidemux", "demux");
+
+  gst_bin_add (GST_BIN (pipeline), src);
+  gst_bin_add (GST_BIN (pipeline), demux);
+  gst_element_connect (src, demux);
+
+  audio_bin = gst_bin_new ("a_decoder_bin");
+  a_decoder = gst_element_factory_make ("mad", "a_dec");
+  audio_thread = gst_thread_new ("a_decoder_thread");
+  audiosink = gst_element_factory_make ("osssink", "a_sink");
+  g_object_set (G_OBJECT (audiosink), "fragment", 0x00180008, NULL);
+  a_queue = gst_element_factory_make ("queue", "a_queue");
+  gst_element_connect (a_decoder, a_queue);
+  gst_element_connect (a_queue, audiosink);
+  gst_bin_add (GST_BIN (audio_bin), a_decoder);
+  gst_bin_add (GST_BIN (audio_bin), audio_thread);
+  gst_bin_add (GST_BIN (audio_thread), a_queue);
+  gst_bin_add (GST_BIN (audio_thread), audiosink);
+  gst_element_set_state (audio_bin, GST_STATE_READY);
+
+  setup_dynamic_connection (demux, "audio_00", gst_element_get_pad (a_decoder, "sink"), audio_bin);
+
+  seekable = gst_element_get_pad (a_queue, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (a_decoder, "sink"));
+
+  video_bin = gst_bin_new ("v_decoder_bin");
+  //v_decoder = gst_element_factory_make ("identity", "v_dec");
+  v_decoder = gst_element_factory_make ("windec", "v_dec");
+  video_thread = gst_thread_new ("v_decoder_thread");
+  videosink = gst_element_factory_make ("xvideosink", "v_sink");
+  //videosink = gst_element_factory_make ("fakesink", "v_sink");
+  //g_object_set (G_OBJECT (videosink), "sync", TRUE, NULL);
+  v_queue = gst_element_factory_make ("queue", "v_queue");
+  g_object_set (G_OBJECT (v_queue), "max_level", 10, NULL);
+  gst_element_connect (v_decoder, v_queue);
+  gst_element_connect (v_queue, videosink);
+  gst_bin_add (GST_BIN (video_bin), v_decoder);
+  gst_bin_add (GST_BIN (video_bin), video_thread);
+  gst_bin_add (GST_BIN (video_thread), v_queue);
+  gst_bin_add (GST_BIN (video_thread), videosink);
+
+  gst_element_set_state (video_bin, GST_STATE_READY);
+
+  setup_dynamic_connection (demux, "video_00", gst_element_get_pad (v_decoder, "sink"), video_bin);
+
+  seekable = gst_element_get_pad (v_queue, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (v_decoder, "sink"));
+
+  return pipeline;
+}
+
+static GstElement*
+make_mpeg_pipeline (const gchar *location) 
+{
+  GstElement *pipeline, *audio_bin, *video_bin;
+  GstElement *src, *demux, *a_decoder, *v_decoder, *audiosink, *videosink;
+  GstElement *a_queue, *audio_thread, *v_queue, *video_thread;
+  GstPad *seekable;
+  
+  pipeline = gst_pipeline_new ("app");
+
+  src = gst_element_factory_make ("filesrc", "src");
+  g_object_set (G_OBJECT (src), "location", location, NULL);
+
+  demux = gst_element_factory_make ("mpegdemux", "demux");
+  g_object_set (G_OBJECT (demux), "sync", FALSE, NULL);
+
+  gst_bin_add (GST_BIN (pipeline), src);
+  gst_bin_add (GST_BIN (pipeline), demux);
+  gst_element_connect (src, demux);
+
+  audio_bin = gst_bin_new ("a_decoder_bin");
+  a_decoder = gst_element_factory_make ("mad", "a_dec");
+  audio_thread = gst_thread_new ("a_decoder_thread");
+  a_queue = gst_element_factory_make ("queue", "a_queue");
+  audiosink = gst_element_factory_make ("osssink", "a_sink");
+  g_object_set (G_OBJECT (audiosink), "fragment", 0x00180008, NULL);
+  gst_element_connect (a_decoder, a_queue);
+  gst_element_connect (a_queue, audiosink);
+  gst_bin_add (GST_BIN (audio_bin), a_decoder);
+  gst_bin_add (GST_BIN (audio_bin), audio_thread);
+  gst_bin_add (GST_BIN (audio_thread), a_queue);
+  gst_bin_add (GST_BIN (audio_thread), audiosink);
+
+  setup_dynamic_connection (demux, "audio_00", gst_element_get_pad (a_decoder, "sink"), audio_bin);
+
+  seekable = gst_element_get_pad (a_queue, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (a_decoder, "sink"));
+
+  video_bin = gst_bin_new ("v_decoder_bin");
+  v_decoder = gst_element_factory_make ("mpeg2dec", "v_dec");
+  video_thread = gst_thread_new ("v_decoder_thread");
+  v_queue = gst_element_factory_make ("queue", "v_queue");
+  videosink = gst_element_factory_make ("xvideosink", "v_sink");
+  gst_element_connect (v_decoder, v_queue);
+  gst_element_connect (v_queue, videosink);
+  gst_bin_add (GST_BIN (video_bin), v_decoder);
+  gst_bin_add (GST_BIN (video_bin), video_thread);
+  gst_bin_add (GST_BIN (video_thread), v_queue);
+  gst_bin_add (GST_BIN (video_thread), videosink);
+
+  setup_dynamic_connection (demux, "video_00", gst_element_get_pad (v_decoder, "sink"), video_bin);
+
+  seekable = gst_element_get_pad (v_queue, "src");
+  seekables = g_list_prepend (seekables, seekable);
+  rate_pads = g_list_prepend (rate_pads, seekable);
+  rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (v_decoder, "sink"));
+
+  return pipeline;
+}
+
+static gchar*
+format_value (GtkScale *scale,
+	      gdouble   value)
+{
+  gint real = value * duration / 100;
+  gint seconds = (gint) real/1000000;
+  gint subseconds = (gint) real/10000;
+
+  return g_strdup_printf ("%02d:%02d:%02d",
+                          seconds/60, 
+			  seconds%60, 
+			  subseconds%100);
+}
+
+typedef struct
+{
+  const gchar *name;
+  const GstFormat format;
+} seek_format;
+
+static seek_format seek_formats[] = 
+{
+  { "tim",  GST_FORMAT_TIME    },
+  { "byt",  GST_FORMAT_BYTES   },
+  { "smp",  GST_FORMAT_SAMPLES },
+  { "frm",  GST_FORMAT_FRAMES  },
+  { "fld",  GST_FORMAT_FIELDS  },
+  { "buf",  GST_FORMAT_BUFFERS },
+  { "def",  GST_FORMAT_DEFAULT },
+  { NULL, 0 }, 
+};
+
+G_GNUC_UNUSED static void
+query_rates (void)
+{
+  GList *walk = rate_pads;
+
+  while (walk) {
+    GstPad *pad = GST_PAD (walk->data);
+    gint i = 0;
+
+    g_print ("rate/sec  %8.8s: ", GST_PAD_NAME (pad));
+    while (seek_formats[i].name) {
+      gint64 value;
+      GstFormat format;
+
+      format = seek_formats[i].format;
+
+      if (gst_pad_convert (pad, GST_FORMAT_TIME, GST_SECOND, 
+		           &format, &value)) 
+      {
+        g_print ("%s %10lld | ", seek_formats[i].name, value);
+      }
+      else {
+        g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*");
+      }
+
+      i++;
+    }
+    g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad));
+
+    walk = g_list_next (walk);
+  }
+}
+
+G_GNUC_UNUSED static void
+query_durations (GstPad *pad)
+{
+  gint i = 0;
+
+  g_print ("durations %8.8s: ", GST_PAD_NAME (pad));
+  while (seek_formats[i].name) {
+    gboolean res;
+    gint64 value;
+    GstFormat format;
+
+    format = seek_formats[i].format;
+    res = gst_pad_query (pad, GST_PAD_QUERY_TOTAL, &format, &value);
+    if (res) {
+      g_print ("%s %10lld | ", seek_formats[i].name, value);
+      if (seek_formats[i].format == GST_FORMAT_TIME)
+	duration = value;
+    }
+    else {
+      g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*");
+    }
+    i++;
+  }
+  g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad));
+}
+
+G_GNUC_UNUSED static void
+query_positions (GstPad *pad)
+{
+  gint i = 0;
+
+  g_print ("positions %8.8s: ", GST_PAD_NAME (pad));
+  while (seek_formats[i].name) {
+    gboolean res;
+    gint64 value;
+    GstFormat format;
+
+    format = seek_formats[i].format;
+    res = gst_pad_query (pad, GST_PAD_QUERY_POSITION, &format, &value);
+    if (res) {
+      g_print ("%s %10lld | ", seek_formats[i].name, value);
+      if (seek_formats[i].format == GST_FORMAT_TIME)
+	position = value;
+    }
+    else {
+      g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*");
+    }
+    i++;
+  }
+  g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad));
+}
+
+static gboolean
+update_scale (gpointer data) 
+{
+  GList *walk = seekables;
+  GstClock *clock;
+
+  clock = gst_bin_get_clock (GST_BIN (pipeline));
+
+  g_print ("clock:                  %10llu\n", gst_clock_get_time (clock));
+
+  while (walk) {
+    GstPad *pad = GST_PAD (walk->data);
+
+    query_durations (pad);
+    query_positions (pad);
+
+    walk = g_list_next (walk);
+  }
+  query_rates ();
+
+  if (duration > 0) {
+    gtk_adjustment_set_value (adjustment, position * 100.0 / duration);
+  }
+
+  return TRUE;
+}
+
+static gboolean
+iterate (gpointer data)
+{
+  gboolean res;
+
+  res = gst_bin_iterate (GST_BIN (data));
+  if (!res) {
+    gtk_timeout_remove (update_id);
+    g_print ("stopping iterations\n");
+  }
+  return res;
+}
+
+static gboolean
+start_seek (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
+{
+  gst_element_set_state (pipeline, GST_STATE_PAUSED);
+  gtk_timeout_remove (update_id);
+
+  return FALSE;
+}
+
+static gboolean
+stop_seek (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
+{
+  gint64 real = gtk_range_get_value (GTK_RANGE (widget)) * duration / 100;
+  gboolean res;
+  GstEvent *s_event;
+  GList *walk = seekables;
+
+  while (walk) {
+    GstPad *seekable = GST_PAD (walk->data);
+
+    g_print ("seek to %lld on pad %s:%s\n", real, GST_DEBUG_PAD_NAME (seekable));
+    s_event = gst_event_new_seek (GST_FORMAT_TIME |
+			   	  GST_SEEK_METHOD_SET |
+				  GST_SEEK_FLAG_FLUSH, real);
+
+    res = gst_pad_send_event (seekable, s_event);
+    gst_event_free (s_event);
+
+    walk = g_list_next (walk);
+  }
+
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+  gtk_idle_add ((GtkFunction) iterate, pipeline);
+  update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+
+  return FALSE;
+}
+
+static void
+play_cb (GtkButton * button, gpointer data)
+{
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+  gtk_idle_add ((GtkFunction) iterate, pipeline);
+  update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+}
+
+static void
+pause_cb (GtkButton * button, gpointer data)
+{
+  gst_element_set_state (pipeline, GST_STATE_PAUSED);
+  gtk_timeout_remove (update_id);
+}
+
+static void
+stop_cb (GtkButton * button, gpointer data)
+{
+  gst_element_set_state (pipeline, GST_STATE_READY);
+  gtk_timeout_remove (update_id);
+}
+
+int
+main (int argc, char **argv)
+{
+  GtkWidget *window, *hbox, *vbox, 
+            *play_button, *pause_button, *stop_button, 
+	    *hscale;
+
+  gst_init (&argc, &argv);
+  gtk_init (&argc, &argv);
+
+  if (argc != 3) {
+    g_print ("usage: %s <type 0=mp3 1=avi 2=mpeg1 3=mpegparse> <filename>\n", argv[0]);
+    exit (-1);
+  }
+
+  if (atoi (argv[1]) == 0) 
+    pipeline = make_mp3_pipeline (argv[2]);
+  else if (atoi (argv[1]) == 1) 
+    pipeline = make_avi_pipeline (argv[2]);
+  else if (atoi (argv[1]) == 2) 
+    pipeline = make_mpeg_pipeline (argv[2]);
+  else 
+    pipeline = make_parse_pipeline (argv[2]);
+
+  /* initialize gui elements ... */
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  hbox = gtk_hbox_new (FALSE, 0);
+  vbox = gtk_vbox_new (FALSE, 0);
+  play_button = gtk_button_new_with_label ("play");
+  pause_button = gtk_button_new_with_label ("pause");
+  stop_button = gtk_button_new_with_label ("stop");
+
+  adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.00, 100.0, 0.1, 1.0, 1.0));
+  hscale = gtk_hscale_new (adjustment);
+  gtk_scale_set_digits (GTK_SCALE (hscale), 2);
+  gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_CONTINUOUS);
+
+  gtk_signal_connect(GTK_OBJECT(hscale),
+                             "button_press_event", G_CALLBACK (start_seek), pipeline);
+  gtk_signal_connect(GTK_OBJECT(hscale),
+                             "button_release_event", G_CALLBACK (stop_seek), pipeline);
+  gtk_signal_connect(GTK_OBJECT(hscale),
+                             "format_value", G_CALLBACK (format_value), pipeline);
+
+  /* do the packing stuff ... */
+  gtk_window_set_default_size (GTK_WINDOW (window), 96, 96);
+  gtk_container_add (GTK_CONTAINER (window), vbox);
+  gtk_container_add (GTK_CONTAINER (vbox), hbox);
+  gtk_box_pack_start (GTK_BOX (hbox), play_button, FALSE, FALSE, 2);
+  gtk_box_pack_start (GTK_BOX (hbox), pause_button, FALSE, FALSE, 2);
+  gtk_box_pack_start (GTK_BOX (hbox), stop_button, FALSE, FALSE, 2);
+  gtk_box_pack_start (GTK_BOX (vbox), hscale, TRUE, TRUE, 2);
+
+  /* connect things ... */
+  g_signal_connect (G_OBJECT (play_button), "clicked", G_CALLBACK (play_cb), pipeline);
+  g_signal_connect (G_OBJECT (pause_button), "clicked", G_CALLBACK (pause_cb), pipeline);
+  g_signal_connect (G_OBJECT (stop_button), "clicked", G_CALLBACK (stop_cb), pipeline);
+  g_signal_connect (G_OBJECT (window), "delete_event", gtk_main_quit, NULL);
+
+  /* show the gui. */
+  gtk_widget_show_all (window);
+
+  gtk_main ();
+
+  //g_mem_chunk_info();
+
+  return 0;
+}