Added gst_pipeline_add_sink/src to allow multiple sink cases and more complex autoplugging. Update docs too.

Original commit message from CVS:
Added gst_pipeline_add_sink/src to allow multiple sink cases and
more complex autoplugging. Update docs too.
Simplified the pipeline autoplugging code.
Changed the cothread case: One iteration is now a push from the src
element. The disk source does not change its state anymore on eof.
Better type setting for the ac3 parser/decoder and mpeg2parse.

docs/gst/gstreamer-decl.txt

@@ -1328,6 +1328,9 @@ extern GstElementDetails gst_pipeline_details;
 <NAME>GstPipeline</NAME>
 struct GstPipeline {
   GstBin bin;
+
+  GstElement *src;         // we only allow one src element
+  GList      *sinks;	   // and multiple sinks
 };
 </STRUCT>
 <STRUCT>
@@ -1356,6 +1359,16 @@ guchar *name
 GstPipeline *pipeline
 </FUNCTION>
 <FUNCTION>
+<NAME>gst_pipeline_add_src</NAME>
+<RETURNS>void  </RETURNS>
+GstPipeline *pipeline, GstElement *src
+</FUNCTION>
+<FUNCTION>
+<NAME>gst_pipeline_add_sink</NAME>
+<RETURNS>void  </RETURNS>
+GstPipeline *pipeline, GstElement *sink
+</FUNCTION>
+<FUNCTION>
 <NAME>gst_pipeline_iterate</NAME>
 <RETURNS>void  </RETURNS>
 GstPipeline *pipeline
@@ -2067,6 +2080,36 @@ GstBufferPool *pool
 
 </FUNCTION>
 <MACRO>
+<NAME>GET_SP</NAME>
+#define GET_SP(target) \
+  __asm__("movl %%esp, %0" : "=m"(target) : : "esp", "ebp");
+</MACRO>
+<MACRO>
+<NAME>SET_SP</NAME>
+#define SET_SP(source) \
+  __asm__("movl %0, %%esp\n" : "=m"(thread->sp));
+</MACRO>
+<MACRO>
+<NAME>JUMP</NAME>
+#define JUMP(target) \
+    __asm__("jmp " SYMBOL_NAME_STR(cothread_stub))
+</MACRO>
+<MACRO>
+<NAME>GET_SP</NAME>
+#define GET_SP(target) \
+	__asm__("stw 1,%0" : "=m"(target) : : "r1");
+</MACRO>
+<MACRO>
+<NAME>SET_SP</NAME>
+#define SET_SP(source) \
+	__asm__("lwz 1,%0" : "=m"(source))
+</MACRO>
+<MACRO>
+<NAME>JUMP</NAME>
+#define JUMP(target) \
+    __asm__("b " SYMBOL_NAME_STR(cothread_stub))
+</MACRO>
+<MACRO>
 <NAME>GST_TYPE_ASYNCDISKSRC</NAME>
 #define GST_TYPE_ASYNCDISKSRC \
   (gst_asyncdisksrc_get_type())

docs/gst/gstreamer-sections.txt

@@ -16,6 +16,9 @@ cothread_setfunc
 cothread_switch
 cothread_main
 <SUBSECTION Standard>
+GET_SP
+JUMP
+SET_SP
 </SECTION>
 
 <SECTION>
@@ -297,6 +300,8 @@ gst_pad_get_type
 <TITLE>GstPipeline</TITLE>
 GstPipeline
 gst_pipeline_new
+gst_pipeline_add_sink
+gst_pipeline_add_src
 gst_pipeline_autoplug
 gst_pipeline_destroy
 gst_pipeline_iterate

docs/gst/tmpl/gstpipeline.sgml

@@ -36,6 +36,24 @@ pipeline figure out what plugins to use.</para>
 @Returns: 
 
 
+<!-- ##### FUNCTION gst_pipeline_add_sink ##### -->
+<para>
+
+</para>
+
+@pipeline: 
+@sink: 
+
+
+<!-- ##### FUNCTION gst_pipeline_add_src ##### -->
+<para>
+
+</para>
+
+@pipeline: 
+@src: 
+
+
 <!-- ##### FUNCTION gst_pipeline_autoplug ##### -->
 <para>
 

docs/manual/helloworld2.sgml

@@ -58,8 +58,8 @@ int main(int argc,char *argv[])
   audiosink = gst_elementfactory_make("audiosink", "play_audio");
 
   /* add objects to the main pipeline */
-  gst_bin_add(GST_BIN(pipeline), disksrc);
+  gst_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
-  gst_bin_add(GST_BIN(pipeline), audiosink);
+  gst_pipeline_add_sink(GST_PIPELINE(pipeline), audiosink);
 
   if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
     g_print("unable to handle stream\n");
@@ -118,7 +118,7 @@ int main(int argc,char *argv[])
       <itemizedlist>
         <listitem>
           <para>
-            The source and the sink elements will be found inside the pipeline
+	    The pipeline will try to connect the src and the sink element.
           </para>
         </listitem>
         <listitem>

examples/helloworld2/helloworld2.c

@@ -38,8 +38,8 @@ int main(int argc,char *argv[])
   g_assert(audiosink != NULL);
 
   /* add objects to the main pipeline */
-  gst_bin_add(GST_BIN(pipeline), disksrc);
+  gst_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
-  gst_bin_add(GST_BIN(pipeline), audiosink);
+  gst_pipeline_add_sink(GST_PIPELINE(pipeline), audiosink);
 
   if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
     g_print("unable to handle stream\n");

examples/thread/thread.c

@@ -45,8 +45,8 @@ int main(int argc,char *argv[])
   g_assert(audiosink != NULL);
 
   /* add objects to the main pipeline */
-  gst_bin_add(GST_BIN(pipeline), disksrc);
+  gst_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
-  gst_bin_add(GST_BIN(pipeline), audiosink);
+  gst_pipeline_add_sink(GST_PIPELINE(pipeline), audiosink);
 
   if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
     g_print("unable to handle stream\n");

gst/Makefile.am

@@ -55,9 +55,6 @@ libgstinclude_HEADERS =	\
 	gstbufferpool.h	\
 	gstclock.h	\
 	gstcpu.h	\
-	gstarch.h       \
-	gsti386.h       \
-	gstppc.h        \
 	gstelement.h	\
 	gstbin.h	\
 	gstpipeline.h	\
@@ -75,6 +72,11 @@ libgstinclude_HEADERS =	\
 	gstxml.h	\
 	cothreads.h
 
+noinst_HEADERS =	\
+	gstarch.h       \
+	gsti386.h       \
+	gstppc.h        
+
 CFLAGS += -O2 -Wall
 
 libgst_la_LIBADD = $(GLIB_LIBS) $(GTK_LIBS) $(XML_LIBS)

gst/cothreads.c

@@ -124,10 +124,12 @@ void cothread_switch(cothread_state *thread) {
     exit(2);
   }
 
+  /*
   if (current == thread) {
     g_print("cothread: trying to switch to same thread, legal but not necessary\n");
-    return;
+    //return;
   }
+  */
 
   // find the number of the thread to switch to
   ctx->current = thread->threadnum;
@@ -150,10 +152,10 @@ void cothread_switch(cothread_state *thread) {
     // switch to it
     longjmp(thread->jmp,1);
   } else {
-    DEBUG("cothread: exit thread \n");
     SET_SP(thread->sp);
     // start it
     //JUMP(cothread_stub);
     cothread_stub();
+    DEBUG("cothread: exit thread \n");
   }
 }

gst/elements/gstdisksrc.c

@@ -221,7 +221,6 @@ void gst_disksrc_push(GstSrc *src) {
   else if (readbytes == 0) {
     gst_src_signal_eos(GST_SRC(disksrc));
     gst_buffer_unref(buf);
-    GST_STATE(src) = GST_STATE_PAUSED;
     return;
   }
 

gst/gstbin.c

@@ -441,10 +441,9 @@ static int gst_bin_loopfunc_wrapper(int argc,char *argv[]) {
     DEBUG("** gst_bin_loopfunc_wrapper(): element is chain-based, calling in infinite loop\n");
     if (GST_IS_SRC(element)) {
       //while (1) {
-      while (GST_STATE(element) == GST_STATE_PLAYING) {
         DEBUG("** gst_bin_loopfunc_wrapper(): calling push function of source\n");
         gst_src_push(GST_SRC(element));
-      }
+      //}
     } else {
       while (1) {
         pads = element->pads;
@@ -625,8 +624,8 @@ void gst_bin_iterate_func(GstBin *bin) {
   if (bin->need_cothreads) {
     // all we really have to do is switch to the first child
     // FIXME this should be lots more intelligent about where to start
-  //g_print("** in gst_bin_iterate_func()==================================%s\n",
+  DEBUG("** in gst_bin_iterate_func()==================================%s\n",
-  //        gst_element_get_name(GST_ELEMENT(bin->children->data)));
+          gst_element_get_name(GST_ELEMENT(bin->children->data)));
     cothread_switch(GST_ELEMENT(bin->children->data)->threadstate);
   } else {
     entries = bin->entries;

gst/gstpipeline.c

@@ -91,6 +91,8 @@ gst_pipeline_class_init(GstPipelineClass *klass) {
 }
 
 static void gst_pipeline_init(GstPipeline *pipeline) {
+  pipeline->src = NULL;
+  pipeline->sinks = NULL;
 }
 
 
@@ -111,7 +113,8 @@ GstElement *gst_pipeline_new(guchar *name) {
 }
 
 static void gst_pipeline_prepare(GstPipeline *pipeline) {
-  g_print("GstPipeline: preparing pipeline \"%s\" for playing\n", gst_element_get_name(GST_ELEMENT(pipeline)));
+  g_print("GstPipeline: preparing pipeline \"%s\" for playing\n", 
+		  gst_element_get_name(GST_ELEMENT(pipeline)));
 }
 
 static void gst_pipeline_have_type(GstSink *sink, GstSink *sink2, gpointer data) {
@@ -125,7 +128,8 @@ static guint16 gst_pipeline_typefind(GstPipeline *pipeline, GstElement *element)
   GstElement *typefind;
   guint16 type_id = 0;
 
-  g_print("GstPipeline: typefind for element \"%s\" %p\n", gst_element_get_name(element), &found);
+  g_print("GstPipeline: typefind for element \"%s\" %p\n", 
+		  gst_element_get_name(element), &found);
 
   typefind = gst_elementfactory_make("typefind","typefind");
   g_return_val_if_fail(typefind != NULL, FALSE);
@@ -142,6 +146,7 @@ static guint16 gst_pipeline_typefind(GstPipeline *pipeline, GstElement *element)
   gst_element_set_state(GST_ELEMENT(element),GST_STATE_READY);
   gst_element_set_state(GST_ELEMENT(element),GST_STATE_PLAYING);
 
+  // keep pushing buffers... the have_type signal handler will set the found flag
   while (!found) {
     gst_src_push(GST_SRC(element));
   }
@@ -150,9 +155,8 @@ static guint16 gst_pipeline_typefind(GstPipeline *pipeline, GstElement *element)
 
   if (found) {
     type_id = gst_util_get_int_arg(GTK_OBJECT(typefind),"type");
-  }
-
     gst_pad_set_type_id(gst_element_get_pad(element, "src"), type_id);
+  }
 
   gst_pad_disconnect(gst_element_get_pad(element,"src"),
                     gst_element_get_pad(typefind,"sink"));
@@ -165,6 +169,7 @@ static guint16 gst_pipeline_typefind(GstPipeline *pipeline, GstElement *element)
 static void gst_pipeline_pads_autoplug_func(GstElement *src, GstPad *pad, GstElement *sink) {
   GList *sinkpads;
   GstPad *sinkpad;
+  gboolean connected = FALSE;
 
   g_print("gstpipeline: autoplug pad connect function type %d\n", pad->type);
 
@@ -173,14 +178,24 @@ static void gst_pipeline_pads_autoplug_func(GstElement *src, GstPad *pad, GstEle
     sinkpad = (GstPad *)sinkpads->data;
 
     // if we have a match, connect the pads
-    if (sinkpad->type == pad->type && sinkpad->direction == GST_PAD_SINK && !GST_PAD_CONNECTED(sinkpad)) {
+    if (sinkpad->type == pad->type && 
+        sinkpad->direction == GST_PAD_SINK && 
+        !GST_PAD_CONNECTED(sinkpad)) 
+    {
       gst_pad_connect(pad, sinkpad);
-      g_print("gstpipeline: autoconnect pad \"%s\" (%d) in element %s <-> ", pad->name, pad->type, gst_element_get_name(src));
+      g_print("gstpipeline: autoconnect pad \"%s\" (%d) in element %s <-> ", pad->name, 
-      g_print("pad \"%s\" (%d) in element %s\n", sinkpad->name, sinkpad->type, gst_element_get_name(sink));
+		      pad->type, gst_element_get_name(src));
+      g_print("pad \"%s\" (%d) in element %s\n", sinkpad->name, sinkpad->type, 
+		      gst_element_get_name(sink));
+      connected = TRUE;
       break;
     }
     sinkpads = g_list_next(sinkpads);
   }
+
+  if (!connected) {
+    g_print("gstpipeline: no path to sinks for type %d\n", pad->type);
+  }
 }
 
 static void gst_pipeline_pads_autoplug(GstElement *src, GstElement *sink) {
@@ -201,10 +216,14 @@ static void gst_pipeline_pads_autoplug(GstElement *src, GstElement *sink) {
         sinkpad = (GstPad *)sinkpads->data;
 
 	// if we have a match, connect the pads
-	if (sinkpad->type == srcpad->type && sinkpad->direction == GST_PAD_SINK && !GST_PAD_CONNECTED(sinkpad)) {
+	if (sinkpad->type == srcpad->type && 
+	    sinkpad->direction == GST_PAD_SINK && 
+	    !GST_PAD_CONNECTED(sinkpad)) {
           gst_pad_connect(srcpad, sinkpad);
-          g_print("gstpipeline: autoconnect pad \"%s\" (%d) in element %s <-> ", srcpad->name, srcpad->type, gst_element_get_name(src));
+          g_print("gstpipeline: autoconnect pad \"%s\" (%d) in element %s <-> ", 
-          g_print("pad \"%s\" (%d) in element %s\n", sinkpad->name, sinkpad->type, gst_element_get_name(sink));
+			  srcpad->name, srcpad->type, gst_element_get_name(src));
+          g_print("pad \"%s\" (%d) in element %s\n", sinkpad->name, 
+			  sinkpad->type, gst_element_get_name(sink));
 	  connected = TRUE;
 	  goto end;
 	}
@@ -222,6 +241,51 @@ end:
   }
 }
 
+/**
+ * gst_pipeline_add_src:
+ * @pipeline: the pipeline to add the src to
+ * @src: the src to add to the pipeline
+ *
+ * Adds a src element to the pipeline. This element
+ * will be used as a src for autoplugging. If you add more
+ * than one src element, the previously added element will
+ * be removed.
+ */
+void gst_pipeline_add_src(GstPipeline *pipeline, GstElement *src) 
+{
+  g_return_if_fail(pipeline != NULL);
+  g_return_if_fail(GST_IS_PIPELINE(pipeline));
+  g_return_if_fail(src != NULL);
+  g_return_if_fail(GST_IS_ELEMENT(src));
+
+  if (pipeline->src) {
+    printf("gstpipeline: *WARNING* removing previously added element \"%s\"\n",
+			  gst_element_get_name(pipeline->src));
+    gst_bin_remove(GST_BIN(pipeline), pipeline->src);
+  }
+  pipeline->src = src;
+  gst_bin_add(GST_BIN(pipeline), src);
+}
+
+/**
+ * gst_pipeline_add_sink:
+ * @pipeline: the pipeline to add the sink to
+ * @sink: the sink to add to the pipeline
+ *
+ * Adds a sink element to the pipeline. This element
+ * will be used as a sink for autoplugging
+ */
+void gst_pipeline_add_sink(GstPipeline *pipeline, GstElement *sink) 
+{
+  g_return_if_fail(pipeline != NULL);
+  g_return_if_fail(GST_IS_PIPELINE(pipeline));
+  g_return_if_fail(sink != NULL);
+  g_return_if_fail(GST_IS_ELEMENT(sink));
+
+  pipeline->sinks = g_list_prepend(pipeline->sinks, sink);
+  gst_bin_add(GST_BIN(pipeline), sink);
+}
+
 /**
  * gst_pipeline_autoplug:
  * @pipeline: the pipeline to autoplug
@@ -240,71 +304,71 @@ gboolean gst_pipeline_autoplug(GstPipeline *pipeline) {
   guint16 src_type = 0, sink_type = 0;
   gboolean complete = FALSE;
 
+  g_return_val_if_fail(pipeline != NULL, FALSE);
   g_return_val_if_fail(GST_IS_PIPELINE(pipeline), FALSE);
 
-  g_print("GstPipeline: autopluging pipeline \"%s\"\n", gst_element_get_name(GST_ELEMENT(pipeline)));
+  g_print("GstPipeline: autopluging pipeline \"%s\"\n", 
+		  gst_element_get_name(GST_ELEMENT(pipeline)));
 
-  elements = gst_bin_get_list(GST_BIN(pipeline));
 
-  // fase 1, find all the sinks and sources... FIXME need better way to do this...
+  // fase 1, run typedetect on the source if needed... 
+  if (!pipeline->src) {
+    g_print("GstPipeline: no source detected, can't autoplug pipeline \"%s\"\n", 
+		gst_element_get_name(GST_ELEMENT(pipeline)));
+    return FALSE;
+  }
+
+  factory = gst_element_get_factory(pipeline->src);
+
+  src_types = factory->src_types;
+  if (src_types == NULL) {
+    g_print("GstPipeline: source \"%s\" has no MIME type, running typefind...\n", 
+		gst_element_get_name(pipeline->src));
+
+    src_type = gst_pipeline_typefind(pipeline, pipeline->src);
+
+    if (src_type) {
+      g_print("GstPipeline: source \"%s\" type found %d\n", gst_element_get_name(pipeline->src), 
+		  src_type);
+    }
+    else {
+      g_print("GstPipeline: source \"%s\" has no type\n", gst_element_get_name(pipeline->src));
+      return FALSE;
+    }
+  }
+  else {
+    while (src_types) {
+      // FIXME loop over types and find paths...
+      src_types = g_list_next(src_types);
+    }
+  }
+
+  srcelement = pipeline->src;
+
+  elements = pipeline->sinks;
+
+  // fase 2, find all the sinks.. 
   while (elements) {
     element = GST_ELEMENT(elements->data);
 
     if (GST_IS_SINK(element)) {
       g_print("GstPipeline: found sink \"%s\"\n", gst_element_get_name(element));
 
-      if (sink_type) {
-        g_print("GstPipeline: multiple sinks detected, can't autoplug pipeline \"%s\"\n", gst_element_get_name(GST_ELEMENT(pipeline)));
-	return FALSE;
-      }
       sinkelement = element;
       factory = gst_element_get_factory(element);
       
       sink_types = factory->sink_types;
       if (sink_types == NULL) {
-        g_print("GstPipeline: sink \"%s\" has no MIME type, can't autoplug \n", gst_element_get_name(element));
+        g_print("GstPipeline: sink \"%s\" has no MIME type, can't autoplug \n", 
+			gst_element_get_name(element));
 	return FALSE;
       }
       else {
 	sink_type = GPOINTER_TO_UINT(sink_types->data);
-        g_print("GstPipeline: sink \"%s\" has MIME type %d \n", gst_element_get_name(element), sink_type);
+        g_print("GstPipeline: sink \"%s\" has MIME type %d \n", 
+			gst_element_get_name(element), sink_type);
       }
     }
-    else if (GST_IS_SRC(element)) {
-      g_print("GstPipeline: found source \"%s\"\n", gst_element_get_name(element));
-
-      if (src_type) {
-        g_print("GstPipeline: multiple sources detected, can't autoplug pipeline \"%s\"\n", gst_element_get_name(GST_ELEMENT(pipeline)));
-	return FALSE;
-      }
-
-      srcelement = element;
-
-      factory = gst_element_get_factory(element);
-
-      src_types = factory->src_types;
-      if (src_types == NULL) {
-        g_print("GstPipeline: source \"%s\" has no MIME type, running typefind...\n", gst_element_get_name(element));
-
-	src_type = gst_pipeline_typefind(pipeline, element);
-
-	if (src_type) {
-          g_print("GstPipeline: source \"%s\" type found %d\n", gst_element_get_name(element), src_type);
-	}
-	else {
-          g_print("GstPipeline: source \"%s\" has no type\n", gst_element_get_name(element));
-	  return FALSE;
-	}
-      }
-      else {
-        while (src_types) {
-	  src_types = g_list_next(src_types);
-        }
-      }
-    }
-    else {
-      g_print("GstPipeline: found invalid element \"%s\", not source or sink\n", gst_element_get_name(element));
-    }
 
     elements = g_list_next(elements);
   }
@@ -312,7 +376,7 @@ gboolean gst_pipeline_autoplug(GstPipeline *pipeline) {
   factories = gst_type_get_sink_to_src(src_type, sink_type);
 
   while (factories) {
-    // fase 2: find elements to form a pad
+    // fase 3: find elements to form a pad
        
     factory = (GstElementFactory *)(factories->data);
 
@@ -335,7 +399,8 @@ gboolean gst_pipeline_autoplug(GstPipeline *pipeline) {
     return TRUE;
   }
   
-  g_print("GstPipeline: unable to autoplug pipeline \"%s\"\n", gst_element_get_name(GST_ELEMENT(pipeline)));
+  g_print("GstPipeline: unable to autoplug pipeline \"%s\"\n", 
+		  gst_element_get_name(GST_ELEMENT(pipeline)));
   return FALSE;
 }
 

gst/gstpipeline.h

@@ -48,6 +48,9 @@ typedef struct _GstPipelineClass GstPipelineClass;
 
 struct _GstPipeline {
   GstBin bin;
+
+  GstElement *src;         // we only allow one src element
+  GList      *sinks;	   // and multiple sinks
 };
 
 struct _GstPipelineClass {
@@ -60,6 +63,9 @@ GstElement *gst_pipeline_new(guchar *name);
 
 gboolean gst_pipeline_autoplug(GstPipeline *pipeline);
 
+void gst_pipeline_add_src(GstPipeline *pipeline, GstElement *src);
+void gst_pipeline_add_sink(GstPipeline *pipeline, GstElement *sink);
+
 void gst_pipeline_iterate(GstPipeline *pipeline);
 
 #ifdef __cplusplus

libs/getbits/gstgetbits.c

@@ -184,7 +184,7 @@ void gst_getbits_init(gst_getbits_t *gb, GstGetbitsCallback callback, void *data
       gb->showbits = _gst_showbits_i386;
       gb->flushbits = _gst_flushbits_i386;
       gb->backbits = _gst_getbits_back_i386;
-      printf("gstgetbits: using intel optimized versions\n");
+      printf("gstgetbits: using i386 optimized versions\n");
 #else
       gb->get1bit = _gst_get1bit_int;
       gb->getbits = _gst_getbits_int;

plugins/elements/gstdisksrc.c

@@ -221,7 +221,6 @@ void gst_disksrc_push(GstSrc *src) {
   else if (readbytes == 0) {
     gst_src_signal_eos(GST_SRC(disksrc));
     gst_buffer_unref(buf);
-    GST_STATE(src) = GST_STATE_PAUSED;
     return;
   }
 

tests/old/examples/helloworld2/helloworld2.c

@@ -38,8 +38,8 @@ int main(int argc,char *argv[])
   g_assert(audiosink != NULL);
 
   /* add objects to the main pipeline */
-  gst_bin_add(GST_BIN(pipeline), disksrc);
+  gst_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
-  gst_bin_add(GST_BIN(pipeline), audiosink);
+  gst_pipeline_add_sink(GST_PIPELINE(pipeline), audiosink);
 
   if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
     g_print("unable to handle stream\n");

tests/old/examples/thread/thread.c

@@ -45,8 +45,8 @@ int main(int argc,char *argv[])
   g_assert(audiosink != NULL);
 
   /* add objects to the main pipeline */
-  gst_bin_add(GST_BIN(pipeline), disksrc);
+  gst_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
-  gst_bin_add(GST_BIN(pipeline), audiosink);
+  gst_pipeline_add_sink(GST_PIPELINE(pipeline), audiosink);
 
   if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
     g_print("unable to handle stream\n");