added example program to show how cutter plugin works

Original commit message from CVS:
added example program to show how cutter plugin works

diff --git a/examples/cutter/Makefile.am b/examples/cutter/Makefile.am
new file mode 100644 (file)
index 0000000..c1fca3f
--- /dev/null
+++ b/examples/cutter/Makefile.am
@@ -0,0 +1,5 @@
+noinst_PROGRAMS = cutter
+noinst_HEADERS = cutter.h
+
+LIBS += $(GST_LIBS)
+CFLAGS += $(GST_CFLAGS)

diff --git a/examples/cutter/cutter.c b/examples/cutter/cutter.c
new file mode 100644 (file)
index 0000000..33b9e18
--- /dev/null
+++ b/examples/cutter/cutter.c
@@ -0,0 +1,155 @@
+/*
+ * cutter.c - cut audio into pieces based on silence  - thomas@apestaart.org
+ * 
+ * construct a simple pipeline osssrc ! cutter ! disksink
+ * pause when necessary, change output
+ *
+ * Latest change :     03/06/2001
+ *
+ * Version :           0.3
+ */
+
+#include <stdlib.h>
+#include <gst/gst.h>
+#include <unistd.h>
+
+#define DEBUG
+
+gboolean        playing = TRUE;
+int             id = 0;                 /* increment this for each new cut */
+GstElement      *main_bin;
+GstElement     *audiosrc;
+GstElement      *cutter;
+GstElement      *disksink;
+GstElement      *encoder;
+char            buffer[255];
+
+/* signal callbacks */
+
+void cut_start (GstElement *element)
+{
+  g_print ("\nDEBUG: main: cut start\n");
+  /* we should pause the pipeline, disconnect cutter and disksink
+   * create a new disksink to a real file, reconnect, and set to play
+   */
+  g_print ("DEBUG: cut_start: main_bin paused\n");
+  gst_element_set_state (main_bin, GST_STATE_PAUSED);
+
+  sprintf (buffer, "/tmp/test%d.raw", id);
+  g_print ("DEBUG: cut_start: setting new location to %s\n", buffer);
+  gtk_object_set (GTK_OBJECT (disksink), "location", buffer, NULL);
+/*
+  gtk_object_set (GTK_OBJECT (disksink), "type", 4, NULL);
+*/
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+  ++id;
+  g_print ("start_cut_signal done\n");
+  return;
+}
+
+void cut_stop (GstElement *element)
+{
+  g_print ("\nDEBUG: main: cut stop\n");
+  /* we should pause the pipeline, disconnect disksink, create a fake disksink,
+   * connect to pipeline, and set to play
+   */
+  g_print ("DEBUG: cut_stop: main_bin paused\n");
+  gst_element_set_state (main_bin, GST_STATE_PAUSED);
+
+  g_print ("DEBUG: cut_stop: setting new location\n");
+  gtk_object_set (GTK_OBJECT (disksink), "location", "/dev/null", NULL);
+
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+  g_print ("stop_cut_signal done\n");
+  return;
+}
+
+int main (int argc, char *argv[]) 
+{
+  //int i, j;
+  //gboolean done;
+  
+  //char buffer[20];
+  
+  //output_channel_t *channel_out;
+  
+  GstElement *audiosrc;
+
+  gst_init (&argc,&argv);
+/*
+  if (argc == 1) 
+  {
+    g_print("usage: %s <filename1> <filename2> <...>\n", argv[0]);
+    exit(-1);
+  }*/
+  
+  /* set up input channel and main bin */
+
+  g_print ("creating main bin\n");  
+  /* create cutter */
+  cutter = gst_elementfactory_make ("cutter", "cutter");
+
+  gtk_object_set (GTK_OBJECT (cutter), 
+       "threshold_dB", -60.0, 
+       "runlength", 2.0,
+       NULL);
+
+  /* create an audio src */
+  audiosrc = gst_elementfactory_make ("osssrc", "audio_src");
+
+  /* set params */
+
+  gtk_object_set (GTK_OBJECT (audiosrc), "frequency", 44100, 
+                                         "channels", 2,
+                                        "format", 16, NULL);
+
+  encoder = gst_elementfactory_make ("passthrough", "encoder");
+  disksink = gst_elementfactory_make ("disksink", "disk_sink");
+
+  gtk_object_set (GTK_OBJECT (disksink), "location", "/dev/null", NULL);
+
+  /* create main bin */
+  main_bin = gst_pipeline_new ("bin");
+
+  /* add elements to bin */
+  gst_bin_add (GST_BIN (main_bin), cutter);
+  gst_bin_add (GST_BIN (main_bin), audiosrc);
+  gst_bin_add (GST_BIN (main_bin), encoder);
+  gst_bin_add (GST_BIN (main_bin), disksink);
+
+  /* connect adder and disksink */
+
+  gst_pad_connect (gst_element_get_pad (audiosrc, "src"),
+                   gst_element_get_pad (cutter,"sink"));
+  gst_pad_connect (gst_element_get_pad (cutter, "src"),
+                   gst_element_get_pad (encoder, "sink"));
+  gst_pad_connect (gst_element_get_pad (encoder, "src"),
+                   gst_element_get_pad (disksink, "sink"));
+
+  /* set signal handlers */
+  g_print ("setting signal handlers\n");
+  gtk_signal_connect (GTK_OBJECT(cutter), "cut_start",
+                      GTK_SIGNAL_FUNC(cut_start), NULL);
+  gtk_signal_connect (GTK_OBJECT(cutter), "cut_stop",
+                      GTK_SIGNAL_FUNC(cut_stop), NULL);
+
+  /* start playing */
+  g_print ("setting to play\n");
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+
+  while (playing) 
+  {
+//      g_print ("> ");
+      gst_bin_iterate (GST_BIN (main_bin));
+//      g_print (" <");
+  }
+  g_print ("we're done iterating.\n");
+  /* stop the bin */
+
+  gst_element_set_state (main_bin, GST_STATE_NULL);
+
+  gst_object_destroy (GST_OBJECT (disksink));
+  gst_object_destroy (GST_OBJECT (main_bin));
+
+  exit(0);
+}

diff --git a/examples/cutter/cutter.h b/examples/cutter/cutter.h
new file mode 100644 (file)
index 0000000..f7ba2d6
--- /dev/null
+++ b/examples/cutter/cutter.h
@@ -0,0 +1,14 @@
+/*
+ * cutter.h header file
+ * thomas@apestaart.org
+ */
+
+typedef struct 
+{
+  GstElement *pipe;
+  GstElement *disksink;
+  GstElement *audiosink;
+  
+  char *location;
+  int channel_id;
+} output_channel_t;

diff --git a/tests/old/examples/cutter/Makefile.am b/tests/old/examples/cutter/Makefile.am
new file mode 100644 (file)
index 0000000..c1fca3f
--- /dev/null
+++ b/tests/old/examples/cutter/Makefile.am
@@ -0,0 +1,5 @@
+noinst_PROGRAMS = cutter
+noinst_HEADERS = cutter.h
+
+LIBS += $(GST_LIBS)
+CFLAGS += $(GST_CFLAGS)

diff --git a/tests/old/examples/cutter/cutter.c b/tests/old/examples/cutter/cutter.c
new file mode 100644 (file)
index 0000000..33b9e18
--- /dev/null
+++ b/tests/old/examples/cutter/cutter.c
@@ -0,0 +1,155 @@
+/*
+ * cutter.c - cut audio into pieces based on silence  - thomas@apestaart.org
+ * 
+ * construct a simple pipeline osssrc ! cutter ! disksink
+ * pause when necessary, change output
+ *
+ * Latest change :     03/06/2001
+ *
+ * Version :           0.3
+ */
+
+#include <stdlib.h>
+#include <gst/gst.h>
+#include <unistd.h>
+
+#define DEBUG
+
+gboolean        playing = TRUE;
+int             id = 0;                 /* increment this for each new cut */
+GstElement      *main_bin;
+GstElement     *audiosrc;
+GstElement      *cutter;
+GstElement      *disksink;
+GstElement      *encoder;
+char            buffer[255];
+
+/* signal callbacks */
+
+void cut_start (GstElement *element)
+{
+  g_print ("\nDEBUG: main: cut start\n");
+  /* we should pause the pipeline, disconnect cutter and disksink
+   * create a new disksink to a real file, reconnect, and set to play
+   */
+  g_print ("DEBUG: cut_start: main_bin paused\n");
+  gst_element_set_state (main_bin, GST_STATE_PAUSED);
+
+  sprintf (buffer, "/tmp/test%d.raw", id);
+  g_print ("DEBUG: cut_start: setting new location to %s\n", buffer);
+  gtk_object_set (GTK_OBJECT (disksink), "location", buffer, NULL);
+/*
+  gtk_object_set (GTK_OBJECT (disksink), "type", 4, NULL);
+*/
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+  ++id;
+  g_print ("start_cut_signal done\n");
+  return;
+}
+
+void cut_stop (GstElement *element)
+{
+  g_print ("\nDEBUG: main: cut stop\n");
+  /* we should pause the pipeline, disconnect disksink, create a fake disksink,
+   * connect to pipeline, and set to play
+   */
+  g_print ("DEBUG: cut_stop: main_bin paused\n");
+  gst_element_set_state (main_bin, GST_STATE_PAUSED);
+
+  g_print ("DEBUG: cut_stop: setting new location\n");
+  gtk_object_set (GTK_OBJECT (disksink), "location", "/dev/null", NULL);
+
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+  g_print ("stop_cut_signal done\n");
+  return;
+}
+
+int main (int argc, char *argv[]) 
+{
+  //int i, j;
+  //gboolean done;
+  
+  //char buffer[20];
+  
+  //output_channel_t *channel_out;
+  
+  GstElement *audiosrc;
+
+  gst_init (&argc,&argv);
+/*
+  if (argc == 1) 
+  {
+    g_print("usage: %s <filename1> <filename2> <...>\n", argv[0]);
+    exit(-1);
+  }*/
+  
+  /* set up input channel and main bin */
+
+  g_print ("creating main bin\n");  
+  /* create cutter */
+  cutter = gst_elementfactory_make ("cutter", "cutter");
+
+  gtk_object_set (GTK_OBJECT (cutter), 
+       "threshold_dB", -60.0, 
+       "runlength", 2.0,
+       NULL);
+
+  /* create an audio src */
+  audiosrc = gst_elementfactory_make ("osssrc", "audio_src");
+
+  /* set params */
+
+  gtk_object_set (GTK_OBJECT (audiosrc), "frequency", 44100, 
+                                         "channels", 2,
+                                        "format", 16, NULL);
+
+  encoder = gst_elementfactory_make ("passthrough", "encoder");
+  disksink = gst_elementfactory_make ("disksink", "disk_sink");
+
+  gtk_object_set (GTK_OBJECT (disksink), "location", "/dev/null", NULL);
+
+  /* create main bin */
+  main_bin = gst_pipeline_new ("bin");
+
+  /* add elements to bin */
+  gst_bin_add (GST_BIN (main_bin), cutter);
+  gst_bin_add (GST_BIN (main_bin), audiosrc);
+  gst_bin_add (GST_BIN (main_bin), encoder);
+  gst_bin_add (GST_BIN (main_bin), disksink);
+
+  /* connect adder and disksink */
+
+  gst_pad_connect (gst_element_get_pad (audiosrc, "src"),
+                   gst_element_get_pad (cutter,"sink"));
+  gst_pad_connect (gst_element_get_pad (cutter, "src"),
+                   gst_element_get_pad (encoder, "sink"));
+  gst_pad_connect (gst_element_get_pad (encoder, "src"),
+                   gst_element_get_pad (disksink, "sink"));
+
+  /* set signal handlers */
+  g_print ("setting signal handlers\n");
+  gtk_signal_connect (GTK_OBJECT(cutter), "cut_start",
+                      GTK_SIGNAL_FUNC(cut_start), NULL);
+  gtk_signal_connect (GTK_OBJECT(cutter), "cut_stop",
+                      GTK_SIGNAL_FUNC(cut_stop), NULL);
+
+  /* start playing */
+  g_print ("setting to play\n");
+  gst_element_set_state (main_bin, GST_STATE_PLAYING);
+
+  while (playing) 
+  {
+//      g_print ("> ");
+      gst_bin_iterate (GST_BIN (main_bin));
+//      g_print (" <");
+  }
+  g_print ("we're done iterating.\n");
+  /* stop the bin */
+
+  gst_element_set_state (main_bin, GST_STATE_NULL);
+
+  gst_object_destroy (GST_OBJECT (disksink));
+  gst_object_destroy (GST_OBJECT (main_bin));
+
+  exit(0);
+}

diff --git a/tests/old/examples/cutter/cutter.h b/tests/old/examples/cutter/cutter.h
new file mode 100644 (file)
index 0000000..f7ba2d6
--- /dev/null
+++ b/tests/old/examples/cutter/cutter.h
@@ -0,0 +1,14 @@
+/*
+ * cutter.h header file
+ * thomas@apestaart.org
+ */
+
+typedef struct 
+{
+  GstElement *pipe;
+  GstElement *disksink;
+  GstElement *audiosink;
+  
+  char *location;
+  int channel_id;
+} output_channel_t;