gst/videoparse/gstvideoparse.c: Implement a query type function for the src pad, implement seeking and use ANY caps f...

Original commit message from CVS:
* gst/videoparse/gstvideoparse.c: (gst_video_parse_init),
(gst_video_parse_src_event), (gst_video_parse_src_query_type):
Implement a query type function for the src pad, implement seeking
and use ANY caps for the sink pad as the element doesn't care what
caps the input has and everything is handled via properties.

1 files changed, 68 insertions, 1 deletions

diff --git a/gst/videoparse/gstvideoparse.c b/gst/videoparse/gstvideoparse.c
index 139a9cff..ef87729d 100644
--- a/gst/videoparse/gstvideoparse.c
+++ b/gst/videoparse/gstvideoparse.c
@@ -101,6 +101,8 @@ static void gst_video_parse_get_property (GObject * object, guint prop_id,
 
 static GstFlowReturn gst_video_parse_chain (GstPad * pad, GstBuffer * buffer);
 static gboolean gst_video_parse_sink_event (GstPad * pad, GstEvent * event);
+static gboolean gst_video_parse_src_event (GstPad * pad, GstEvent * event);
+static const GstQueryType *gst_video_parse_src_query_type (GstPad * pad);
 static gboolean gst_video_parse_src_query (GstPad * pad, GstQuery * query);
 static gboolean gst_video_parse_convert (GstVideoParse * vp,
     GstFormat src_format, gint64 src_value,
@@ -118,7 +120,7 @@ static GstStaticPadTemplate gst_video_parse_sink_pad_template =
 GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY }")));
+    GST_STATIC_CAPS_ANY);
 
 GST_DEBUG_CATEGORY_STATIC (gst_video_parse_debug);
 #define GST_CAT_DEFAULT gst_video_parse_debug
@@ -226,7 +228,11 @@ gst_video_parse_init (GstVideoParse * vp, GstVideoParseClass * g_class)
       "src");
   gst_element_add_pad (GST_ELEMENT (vp), vp->srcpad);
 
+  gst_pad_set_event_function (vp->srcpad, gst_video_parse_src_event);
+
   if (1) {
+    gst_pad_set_query_type_function (vp->srcpad,
+        gst_video_parse_src_query_type);
     gst_pad_set_query_function (vp->srcpad, gst_video_parse_src_query);
   }
 
@@ -551,6 +557,67 @@ gst_video_parse_sink_event (GstPad * pad, GstEvent * event)
   return ret;
 }
 
+static gboolean
+gst_video_parse_src_event (GstPad * pad, GstEvent * event)
+{
+  GstVideoParse *vp = GST_VIDEO_PARSE (gst_pad_get_parent (pad));
+  gboolean ret;
+
+  switch (GST_EVENT_TYPE (event)) {
+    case GST_EVENT_SEEK:{
+      GstFormat format;
+      gdouble rate;
+      GstSeekFlags flags;
+      GstSeekType start_type, stop_type;
+      gint64 start, stop;
+
+      gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
+          &stop_type, &stop);
+
+      /* We only handle TIME and DEFAULT (aka frames), forward everything
+       * upstream */
+      if (format != GST_FORMAT_TIME && format != GST_FORMAT_DEFAULT) {
+        gst_event_ref (event);
+        ret = gst_pad_push_event (vp->sinkpad, event);
+      } else {
+        ret =
+            gst_video_parse_convert (vp, format, start, GST_FORMAT_BYTES,
+            &start);
+        ret &=
+            gst_video_parse_convert (vp, format, stop, GST_FORMAT_BYTES, &stop);
+
+        if (ret) {
+          event =
+              gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, start_type,
+              start, stop_type, stop);
+
+          ret = gst_pad_push_event (vp->sinkpad, event);
+        }
+      }
+      break;
+    }
+    default:
+      ret = gst_pad_event_default (vp->srcpad, event);
+      break;
+  }
+
+  gst_object_unref (vp);
+
+  return ret;
+}
+
+static const GstQueryType *
+gst_video_parse_src_query_type (GstPad * pad)
+{
+  static const GstQueryType types[] = {
+    GST_QUERY_POSITION,
+    GST_QUERY_DURATION,
+    GST_QUERY_CONVERT,
+    0
+  };
+
+  return types;
+}
 
 static gboolean
 gst_video_parse_src_query (GstPad * pad, GstQuery * query)