Add beginning of gstreamer stuff

ecdb/trunk/Makefile.am

@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in
 
-SUBDIRS = src
+SUBDIRS = src tools
 
 EXTRA_DIST = \
 	README AUTHORS COPYING 

ecdb/trunk/configure.in

@@ -10,6 +10,7 @@ AM_CONFIG_HEADER(src/config.h)
 AC_ISC_POSIX
 AC_PROG_CC
 AM_PROG_CC_STDC
+AM_PROG_CC_C_O
 AC_HEADER_STDC
 AC_C_CONST
 AM_ENABLE_SHARED
@@ -76,6 +77,17 @@ GST_MAJORMINOR=0.10
 GST_REQS=0.10.2
 GSTPLUG_REQS=0.10.1
 
+PKG_CHECK_MODULES(GSTREAMER, [
+  gstreamer-$GST_MAJORMINOR >= $GST_REQS
+  gstreamer-plugins-base-$GST_MAJORMINOR >= $GSTPLUG_REQS],
+  [
+   have_gstreamer="yes"
+   AC_DEFINE(BUILD_GSTREAMER_SUPPORT, 1, [Enable Gstreamer Support for Ecdb])
+  ],
+  [have_gstreamer="false"])
+
+AM_CONDITIONAL(GSTREAMER_BUILD_SUPPORT, test "x$have_gstreamer" = "xyes")
+
 dnl Make gstreamer an optional dependancy at some point
 PKG_CHECK_MODULES(ECDB, [
   ecore
@@ -84,12 +96,19 @@ PKG_CHECK_MODULES(ECDB, [
   efreet-mime
   libburn-1 >= $LIBBURN_REQUIRED
   libisofs-1 >= $LIBISOFS_REQUIRED
-  gstreamer-$GST_MAJORMINOR >= $GST_REQS
-  gstreamer-plugins-base-$GST_MAJORMINOR >= $GSTPLUG_REQS
 ])
 
 AC_OUTPUT([
 Makefile 
-src/Makefile 
+src/Makefile
+tools/Makefile
+tools/ecdb_transcode_helper/Makefile
 ])
 
+echo
+echo "ECDB"
+echo
+echo "Optional Components:"
+echo "Gstreamer Support............................: $have_gstreamer"
+echo
+

ecdb/trunk/src/ecdb.h

@@ -17,7 +17,6 @@
 #include <libburn/libburn.h>
 #include <libisofs/libisofs.h>
 #include <pthread.h>
-#include <gst/gst.h>
 
 #undef FREE
 #define FREE(dat) \

ecdb/trunk/tools/Makefile.am

@@ -0,0 +1,3 @@
+MAINTAINERCLEANFILES = Makefile.in
+
+SUBDIRS = ecdb_transcode_helper

ecdb/trunk/tools/ecdb_transcode_helper/Makefile.am

@@ -0,0 +1,12 @@
+if GSTREAMER_BUILD_SUPPORT
+
+MAINTAINERCLEANFILES = Makefile.im
+
+bin_PROGRAMS = ecdb_transcode_helper
+
+ecdb_transcode_helper_SOURCES = ecdb_transcode_helper.c
+
+ecdb_transcode_helper_CFLAGS = @GSTREAMER_CFLAGS@
+ecdb_transcode_helper_LDADD = @GSTREAMER_LIBS@
+
+endif

ecdb/trunk/tools/ecdb_transcode_helper/ecdb_transcode_helpter.c

@@ -0,0 +1,132 @@
+#include <gst/gst.h>
+
+GstElement *pipeline, *audio;
+
+static gboolean
+bus_call(GstBus *bus, GstMessage *msg, gpointer data)
+{
+	GMainLoop *loop = (GMainLoop *) data;
+
+	switch (GST_MESSAGE_TYPE(msg))
+	{
+		case GST_MESSAGE_EOS:
+		{
+			g_print("End of stream\n");
+			g_print("Send data back to main program\n");
+			g_main_loop_quit(loop);
+			break;
+		}
+		case GST_MESSAGE_ERROR:
+		{
+			gchar *debug;
+			GError *err;
+
+			gst_message_parse_error(msg, &err, &debug);
+			g_free(debug);
+
+			g_print("Error: %s\n", err->message);
+			g_print("Send error back to main program\n");
+			g_error_free(err);
+
+			g_main_loop_quit(loop);
+			break;
+		}
+		default:
+			break;
+	}
+
+	return TRUE;
+}
+
+static void
+cb_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data)
+{
+	GstCaps *caps;
+	GstStructure *str;
+	GstPad *audiopad;
+
+	audiopad = gst_element_get_static_pad (audio, "sink");
+	if (GST_PAD_IS_LINKED (audiopad))
+	{
+		g_object_unref (audiopad);
+		return;
+	}
+
+	caps = gst_pad_get_caps (pad);
+	str = gst_caps_get_structure (caps, 0);
+	if (!g_strrstr (gst_structure_get_name (str), "audio"))
+	{
+		gst_caps_unref (caps);
+		gst_object_unref (audiopad);
+		return;
+	}
+	gst_caps_unref (caps);
+
+	gst_pad_link (pad, audiopad);
+}
+
+int
+main (int argc, char ** argv)
+{
+	GMainLoop *loop;
+	GstElement *src, *dec, *conv, *resample, *filter, *sink;
+	GstCaps *filtercaps;
+	GstPad *audiopad;
+	GstBus *bus;
+
+	gst_init (&argc, &argv);
+	loop = g_main_loop_new (NULL, FALSE);
+
+	if (argc != 2)
+	{
+		g_print ("Error: no supplied file!\n");
+		return 1;
+	}
+
+	pipeline = gst_pipeline_new ("pipeline");
+
+	bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
+	gst_bus_add_watch (bus, bus_call, loop);
+	gst_object_unref (bus);
+
+	src = gst_element_factory_make ("filesrc", NULL);
+	g_object_set (G_OBJECT (src), "location", argv[1], NULL);
+	dec = gst_element_factory_make ("decodebin", NULL);
+	g_signal_connect (dec, "new-decoded-pad", G_CALLBACK (cb_newpad), NULL);
+	gst_bin_add_many (GST_BIN (pipeline), src, dec, NULL);
+	gst_element_link (src, dec);
+
+	audio = gst_bin_new ("audiobin");
+	conv = gst_element_factory_make ("audioconvert", NULL);
+
+	/* Here's the bit of magic */
+	resample = gst_element_factory_make("audioresample", NULL);
+	filter = gst_element_factory_make("capsfilter", NULL);
+	filtercaps = gst_caps_new_full(gst_structure_new("audio/x-raw-int",
+				"channels", G_TYPE_INT, 2,
+				"width", G_TYPE_INT, 16,
+				"depth", G_TYPE_INT, 16,
+				"endianness", G_TYPE_INT, 1234,
+				"rate", G_TYPE_INT, 44100,
+				"signed", G_TYPE_BOOLEAN, TRUE,
+				NULL), NULL);
+	g_object_set(GST_OBJECT(filter), "caps", filtercaps, NULL);
+	gst_caps_unref(filtercaps);
+
+	audiopad = gst_element_get_static_pad(conv, "sink");
+	sink = gst_element_factory_make ("filesink", NULL);
+	g_object_set(G_OBJECT(sink), "location", "/home/jaime/test.wav", NULL);
+	gst_bin_add_many(GST_BIN (audio), conv, resample, filter, sink, NULL);
+	gst_element_link_many(conv, resample, filter, sink, NULL);
+	gst_element_add_pad (audio, gst_ghost_pad_new ("sink", audiopad));
+	gst_object_unref (audiopad);
+	gst_bin_add (GST_BIN (pipeline), audio);
+
+	gst_element_set_state (pipeline, GST_STATE_PLAYING);
+	g_main_loop_run (loop);
+
+	gst_element_set_state (pipeline, GST_STATE_NULL);
+	gst_object_unref (GST_OBJECT (pipeline));
+
+	return 0;
+}