Port synaesthesia.

Original commit message from CVS:
* configure.ac:
* gst/synaesthesia/Makefile.am:
* gst/synaesthesia/gstsynaesthesia.c: (gst_synaesthesia_init),
(gst_synaesthesia_sink_setcaps), (gst_synaesthesia_src_getcaps),
(gst_synaesthesia_src_setcaps), (gst_synaesthesia_chain),
(gst_synaesthesia_change_state), (plugin_init):
Port synaesthesia.

ChangeLog

@@ -1,3 +1,13 @@
+2006-09-18  Stefan Kost  <ensonic@users.sf.net>
+
+	* configure.ac:
+	* gst/synaesthesia/Makefile.am:
+	* gst/synaesthesia/gstsynaesthesia.c: (gst_synaesthesia_init),
+	(gst_synaesthesia_sink_setcaps), (gst_synaesthesia_src_getcaps),
+	(gst_synaesthesia_src_setcaps), (gst_synaesthesia_chain),
+	(gst_synaesthesia_change_state), (plugin_init):
+	   Port synaesthesia.
+
 2006-09-17  Stefan Kost  <ensonic@users.sf.net>
 
 	* ext/mad/gstid3tag.c:

configure.ac

@@ -83,6 +83,7 @@ GST_PLUGINS_ALL="\
 	mpegaudioparse \
         mpegstream \
 	realmedia \
+        synaesthesia \
 	"
 
 AC_SUBST(GST_PLUGINS_ALL)
@@ -421,6 +422,7 @@ gst/iec958/Makefile
 gst/mpegaudioparse/Makefile
 gst/mpegstream/Makefile
 gst/realmedia/Makefile
+gst/synaesthesia/Makefile
 ext/Makefile
 ext/a52dec/Makefile
 ext/amrnb/Makefile

gst/synaesthesia/Makefile.am

@@ -1,4 +1,3 @@
-
 plugin_LTLIBRARIES = libgstsynaesthesia.la
 
 libgstsynaesthesia_la_SOURCES = gstsynaesthesia.c synaescope.c
@@ -6,7 +5,7 @@ libgstsynaesthesia_la_SOURCES = gstsynaesthesia.c synaescope.c
 noinst_HEADERS = synaescope.h
 
 libgstsynaesthesia_la_CFLAGS = $(GST_CFLAGS)
-libgstsynaesthesia_la_LIBADD =
+libgstsynaesthesia_la_LIBADD = $(GST_BASE_LIBS) 
 libgstsynaesthesia_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
 EXTRA_DIST = README

gst/synaesthesia/gstsynaesthesia.c

@@ -25,7 +25,7 @@
 #include <gst/gst.h>
 #include <gst/video/video.h>
 #include <gst/audio/audio.h>
-#include <gst/bytestream/adapter.h>
+#include <gst/base/gstadapter.h>
 #include "synaescope.h"
 
 #define SYNAES_SAMPLES 512
@@ -41,6 +41,9 @@
 typedef struct _GstSynaesthesia GstSynaesthesia;
 typedef struct _GstSynaesthesiaClass GstSynaesthesiaClass;
 
+GST_DEBUG_CATEGORY_STATIC (synaesthesia_debug);
+#define GST_CAT_DEFAULT (synaesthesia_debug)
+
 struct _GstSynaesthesia
 {
   GstElement element;
@@ -107,16 +110,14 @@ static void gst_synaesthesia_init (GstSynaesthesia * synaesthesia);
 static void gst_synaesthesia_finalize (GObject * object);
 static void gst_synaesthesia_dispose (GObject * object);
 
-static void gst_synaesthesia_chain (GstPad * pad, GstData * _data);
+static GstFlowReturn gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer);
 
 static GstStateChangeReturn
 gst_synaesthesia_change_state (GstElement * element, GstStateChange transition);
 
 static GstCaps *gst_synaesthesia_src_getcaps (GstPad * pad);
-static GstPadLinkReturn
+static gboolean gst_synaesthesia_src_setcaps (GstPad * pad, GstCaps * caps);
-gst_synaesthesia_src_link (GstPad * pad, const GstCaps * caps);
+static gboolean gst_synaesthesia_sink_setcaps (GstPad * pad, GstCaps * caps);
-static GstPadLinkReturn
-gst_synaesthesia_sink_link (GstPad * pad, const GstCaps * caps);
 
 static GstElementClass *parent_class = NULL;
 
@@ -188,13 +189,13 @@ gst_synaesthesia_init (GstSynaesthesia * synaesthesia)
   gst_element_add_pad (GST_ELEMENT (synaesthesia), synaesthesia->srcpad);
 
   gst_pad_set_chain_function (synaesthesia->sinkpad, gst_synaesthesia_chain);
-  gst_pad_set_link_function (synaesthesia->sinkpad, gst_synaesthesia_sink_link);
+  gst_pad_set_setcaps_function (synaesthesia->sinkpad,
+      gst_synaesthesia_sink_setcaps);
 
   gst_pad_set_getcaps_function (synaesthesia->srcpad,
       gst_synaesthesia_src_getcaps);
-  gst_pad_set_link_function (synaesthesia->srcpad, gst_synaesthesia_src_link);
+  gst_pad_set_setcaps_function (synaesthesia->srcpad,
-
+      gst_synaesthesia_src_setcaps);
-  GST_OBJECT_FLAG_SET (synaesthesia, GST_ELEMENT_EVENT_AWARE);
 
   synaesthesia->adapter = gst_adapter_new ();
 
@@ -239,8 +240,8 @@ gst_synaesthesia_finalize (GObject * object)
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
-static GstPadLinkReturn
+static gboolean
-gst_synaesthesia_sink_link (GstPad * pad, const GstCaps * caps)
+gst_synaesthesia_sink_setcaps (GstPad * pad, GstCaps * caps)
 {
   GstSynaesthesia *synaesthesia;
   GstStructure *structure;
@@ -260,30 +261,41 @@ gst_synaesthesia_sink_link (GstPad * pad, const GstCaps * caps)
 
   synaesthesia->sample_rate = rate;
 
-  return GST_PAD_LINK_OK;
+  return TRUE;
 }
 
 static GstCaps *
 gst_synaesthesia_src_getcaps (GstPad * pad)
 {
+  GstSynaesthesia *synaesthesia;
   GstCaps *caps;
   const GstCaps *templcaps;
   gint i;
 
+  synaesthesia = GST_SYNAESTHESIA (gst_pad_get_parent (pad));
   templcaps = gst_pad_get_pad_template_caps (pad);
   caps = gst_caps_copy (templcaps);
 
   for (i = 0; i < gst_caps_get_size (caps); i++) {
     GstStructure *structure = gst_caps_get_structure (caps, i);
 
-    gst_structure_set (structure, "width", G_TYPE_INT, SYNAES_WIDTH, "height",
+    gst_structure_set (structure,
-        G_TYPE_INT, SYNAES_HEIGHT, NULL);
+        "width", G_TYPE_INT, synaesthesia->width,
+        "height", G_TYPE_INT, synaesthesia->height,
+        "framerate", GST_TYPE_FRACTION, (gint) synaesthesia->fps, 1, NULL);
+    //gst_structure_set (structure, "width", G_TYPE_INT, SYNAES_WIDTH, "height",
+    //    G_TYPE_INT, SYNAES_HEIGHT, NULL);
   }
+
+  gst_object_unref (synaesthesia);
+
+  GST_DEBUG ("final caps are %" GST_PTR_FORMAT, caps);
+
   return caps;
 }
 
-static GstPadLinkReturn
+static gboolean
-gst_synaesthesia_src_link (GstPad * pad, const GstCaps * caps)
+gst_synaesthesia_src_setcaps (GstPad * pad, GstCaps * caps)
 {
   GstSynaesthesia *synaesthesia;
   GstStructure *structure;
@@ -308,48 +320,45 @@ gst_synaesthesia_src_link (GstPad * pad, const GstCaps * caps)
 
   synaesthesia_init (synaesthesia->width, synaesthesia->height);
 
-  return GST_PAD_LINK_OK;
+  gst_object_unref (synaesthesia);
+
+  return TRUE;
 }
 
-static void
+static GstFlowReturn
-gst_synaesthesia_chain (GstPad * pad, GstData * _data)
+gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer)
 {
-  GstBuffer *bufin = GST_BUFFER (_data);
+  GstFlowReturn ret = GST_FLOW_OK;
   GstSynaesthesia *synaesthesia;
   guint32 bytesperread;
   gint samples_per_frame;
 
   synaesthesia = GST_SYNAESTHESIA (gst_pad_get_parent (pad));
 
-  GST_DEBUG ("Synaesthesia: chainfunc called");
+  GST_DEBUG ("chainfunc called");
 
-  if (GST_IS_EVENT (bufin)) {
+  /* resync on DISCONT */
-    GstEvent *event = GST_EVENT (bufin);
+  if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
-
+    synaesthesia->audio_basetime = GST_CLOCK_TIME_NONE;
-    switch (GST_EVENT_TYPE (event)) {
-      case GST_EVENT_DISCONTINUOUS:
-      {
-        gint64 value = 0;
-
-        gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
-        synaesthesia->audio_basetime = value;
     synaesthesia->samples_consumed = 0;
     gst_adapter_clear (synaesthesia->adapter);
   }
-      default:
-        gst_pad_event_default (pad, event);
-        break;
-    }
-    return;
-  }
 
-  if (!GST_PAD_IS_USABLE (synaesthesia->srcpad)) {
+  if (GST_PAD_CAPS (synaesthesia->srcpad) == NULL) {
-    gst_buffer_unref (bufin);
+    GstCaps *target;
-    return;
+
+    GST_DEBUG ("fixating");
+    if ((target = gst_synaesthesia_src_getcaps (synaesthesia->srcpad))) {
+      gst_pad_set_caps (synaesthesia->srcpad, target);
+      gst_caps_unref (target);
+    } else {
+      GST_DEBUG ("no caps on srcpad");
+      return GST_FLOW_NOT_NEGOTIATED;
+    }
   }
 
   if (synaesthesia->audio_basetime == GST_CLOCK_TIME_NONE)
-    synaesthesia->audio_basetime = GST_BUFFER_TIMESTAMP (bufin);
+    synaesthesia->audio_basetime = GST_BUFFER_TIMESTAMP (buffer);
 
   if (synaesthesia->audio_basetime == GST_CLOCK_TIME_NONE)
     synaesthesia->audio_basetime = 0;
@@ -357,7 +366,7 @@ gst_synaesthesia_chain (GstPad * pad, GstData * _data)
   bytesperread = SYNAES_SAMPLES * synaesthesia->channels * sizeof (gint16);
   samples_per_frame = synaesthesia->sample_rate / synaesthesia->fps;
 
-  gst_adapter_push (synaesthesia->adapter, bufin);
+  gst_adapter_push (synaesthesia->adapter, buffer);
 
   while (gst_adapter_available (synaesthesia->adapter) >
       MAX (bytesperread,
@@ -365,7 +374,7 @@ gst_synaesthesia_chain (GstPad * pad, GstData * _data)
     const guint16 *data =
         (const guint16 *) gst_adapter_peek (synaesthesia->adapter,
         bytesperread);
-    GstBuffer *bufout;
+    GstBuffer *outbuf;
     guchar *out_frame;
     GstClockTimeDiff frame_duration = GST_SECOND / synaesthesia->fps;
     gint i;
@@ -375,24 +384,34 @@ gst_synaesthesia_chain (GstPad * pad, GstData * _data)
       synaesthesia->datain[1][i] = *data++;
     }
 
-    bufout =
+    ret =
-        gst_buffer_new_and_alloc (synaesthesia->width * synaesthesia->height *
+        gst_pad_alloc_buffer_and_set_caps (synaesthesia->srcpad,
-        4);
+        GST_BUFFER_OFFSET_NONE, synaesthesia->width * synaesthesia->height * 4,
-    GST_BUFFER_TIMESTAMP (bufout) =
+        GST_PAD_CAPS (synaesthesia->srcpad), &outbuf);
+
+    /* no buffer allocated, we don't care why. */
+    if (ret != GST_FLOW_OK)
+      return ret;
+
+    GST_BUFFER_TIMESTAMP (outbuf) =
         synaesthesia->audio_basetime +
         (GST_SECOND * synaesthesia->samples_consumed /
         synaesthesia->sample_rate);
-    GST_BUFFER_DURATION (bufout) = frame_duration;
+    GST_BUFFER_DURATION (outbuf) = frame_duration;
-    GST_BUFFER_SIZE (bufout) = synaesthesia->width * synaesthesia->height * 4;
+    GST_BUFFER_SIZE (outbuf) = synaesthesia->width * synaesthesia->height * 4;
 
     out_frame = (guchar *) synaesthesia_update (synaesthesia->datain);
-    memcpy (GST_BUFFER_DATA (bufout), out_frame, GST_BUFFER_SIZE (bufout));
+    memcpy (GST_BUFFER_DATA (outbuf), out_frame, GST_BUFFER_SIZE (outbuf));
-    gst_pad_push (synaesthesia->srcpad, GST_DATA (bufout));
+    gst_pad_push (synaesthesia->srcpad, outbuf);
 
     synaesthesia->samples_consumed += samples_per_frame;
     gst_adapter_flush (synaesthesia->adapter, samples_per_frame *
         synaesthesia->channels * sizeof (gint16));
   }
+
+  gst_object_unref (synaesthesia);
+
+  return ret;
 }
 
 static GstStateChangeReturn
@@ -407,20 +426,19 @@ gst_synaesthesia_change_state (GstElement * element, GstStateChange transition)
       synaesthesia->audio_basetime = GST_CLOCK_TIME_NONE;
       gst_adapter_clear (synaesthesia->adapter);
       break;
+    default:
+      break;
   }
 
-  if (GST_ELEMENT_CLASS (parent_class)->change_state)
   return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
-  return GST_STATE_CHANGE_SUCCESS;
 }
 
 
 static gboolean
 plugin_init (GstPlugin * plugin)
 {
-  if (!gst_library_load ("gstbytestream"))
+  GST_DEBUG_CATEGORY_INIT (synaesthesia_debug, "synaesthesia", 0,
-    return FALSE;
+      "synaesthesia audio visualisations");
 
   return gst_element_register (plugin, "synaesthesia", GST_RANK_NONE,
       GST_TYPE_SYNAESTHESIA);
@@ -430,4 +448,4 @@ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
     GST_VERSION_MINOR,
     "synaesthesia",
     "Creates video visualizations of audio input, using stereo and pitch information",
-    plugin_init, VERSION, "GPL", GST_PACKAGE, GST_ORIGIN)
+    plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)