gst/level/gstlevel.*: Resolve message timestamps against the playback segment.

Original commit message from CVS:
* gst/level/gstlevel.c: (gst_level_class_init),
(gst_level_set_caps), (gst_level_start), (gst_level_event),
(gst_level_transform_ip):
* gst/level/gstlevel.h:
Resolve message timestamps against the playback segment.

2 files changed, 49 insertions, 5 deletions

diff --git a/gst/level/gstlevel.c b/gst/level/gstlevel.c
index 6ff849fc..3edef456 100644
--- a/gst/level/gstlevel.c
+++ b/gst/level/gstlevel.c
@@ -146,6 +146,8 @@ static void gst_level_dispose (GObject * obj);
 
 static gboolean gst_level_set_caps (GstBaseTransform * trans, GstCaps * in,
     GstCaps * out);
+static gboolean gst_level_start (GstBaseTransform * trans);
+static gboolean gst_level_event (GstBaseTransform * trans, GstEvent * event);
 static GstFlowReturn gst_level_transform_ip (GstBaseTransform * trans,
     GstBuffer * in);
 
@@ -195,6 +197,8 @@ gst_level_class_init (GstLevelClass * klass)
   GST_DEBUG_CATEGORY_INIT (level_debug, "level", 0, "Level calculation");
 
   trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_level_set_caps);
+  trans_class->start = GST_DEBUG_FUNCPTR (gst_level_start);
+  trans_class->event = GST_DEBUG_FUNCPTR (gst_level_event);
   trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_level_transform_ip);
   trans_class->passthrough_on_same_caps = TRUE;
 }
@@ -385,8 +389,6 @@ gst_level_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
   GstStructure *structure;
   int i;
 
-  filter->num_frames = 0;
-
   structure = gst_caps_get_structure (in, 0);
   filter->rate = structure_get_int (structure, "rate");
   filter->width = structure_get_int (structure, "width");
@@ -441,6 +443,46 @@ gst_level_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
   return TRUE;
 }
 
+static gboolean
+gst_level_start (GstBaseTransform * trans)
+{
+  GstLevel *filter = GST_LEVEL (trans);
+
+  filter->num_frames = 0;
+  gst_segment_init (&filter->segment, GST_FORMAT_UNDEFINED);
+
+  return TRUE;
+}
+
+static gboolean
+gst_level_event (GstBaseTransform * trans, GstEvent * event)
+{
+  GstLevel *filter = GST_LEVEL (trans);
+
+  switch (GST_EVENT_TYPE (event)) {
+    case GST_EVENT_NEWSEGMENT:{
+      GstFormat format;
+      gdouble rate, arate;
+      gint64 start, stop, time;
+      gboolean update;
+
+      /* the newsegment values are used to clip the input samples
+       * and to convert the incomming timestamps to running time */
+      gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
+          &start, &stop, &time);
+
+      /* now configure the values */
+      gst_segment_set_newsegment_full (&filter->segment, update,
+          rate, arate, format, start, stop, time);
+      break;
+    }
+    default:
+      break;
+  }
+
+  return TRUE;
+}
+
 static GstMessage *
 gst_level_message_new (GstLevel * l, GstClockTime endtime)
 {
@@ -578,9 +620,9 @@ gst_level_transform_ip (GstBaseTransform * trans, GstBuffer * in)
       GST_CLOCK_TIME_TO_FRAMES (filter->interval, filter->rate)) {
     if (filter->message) {
       GstMessage *m;
-      GstClockTime endtime;
-
-      endtime = GST_BUFFER_TIMESTAMP (in)
+      GstClockTime endtime =
+          gst_segment_to_running_time (&filter->segment, GST_FORMAT_TIME,
+          GST_BUFFER_TIMESTAMP (in))
           + GST_FRAMES_TO_CLOCK_TIME (num_frames, filter->rate);
 
       m = gst_level_message_new (filter, endtime);
diff --git a/gst/level/gstlevel.h b/gst/level/gstlevel.h
index 3cd5d3a8..f91b620c 100644
--- a/gst/level/gstlevel.h
+++ b/gst/level/gstlevel.h
@@ -78,6 +78,8 @@ struct _GstLevel {
   gdouble *RMS_dB;              /* RMS in dB to emit */
   GstClockTime *decay_peak_age; /* age of last peak */
   
+  GstSegment segment;
+  
   void (*process)(gpointer, guint, guint, gdouble*, gdouble*);
 };