From ef421fee72539e6202c8535687f15da2c3d4d1a7 Mon Sep 17 00:00:00 2001
From: Zaheer Abbas Merali <zaheerabbas@merali.org>
Date: Fri, 25 Jan 2008 17:35:46 +0000
Subject: sys/dvb/gstdvbsrc.c: Open frontend in NULL->READY so caps about dvb
 adapter can be seen by the app.

Original commit message from CVS:
* sys/dvb/gstdvbsrc.c:
Open frontend in NULL->READY so caps about dvb adapter can be
seen by the app.
---
 sys/dvb/gstdvbsrc.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'sys/dvb')

diff --git a/sys/dvb/gstdvbsrc.c b/sys/dvb/gstdvbsrc.c
index 032cbd2b..9144d12d 100644
--- a/sys/dvb/gstdvbsrc.c
+++ b/sys/dvb/gstdvbsrc.c
@@ -271,6 +271,9 @@ static GstFlowReturn gst_dvbsrc_create (GstPushSrc * element,
 
 static gboolean gst_dvbsrc_start (GstBaseSrc * bsrc);
 static gboolean gst_dvbsrc_stop (GstBaseSrc * bsrc);
+static GstStateChangeReturn gst_dvbsrc_change_state (GstElement * element,
+    GstStateChange transition);
+
 static gboolean gst_dvbsrc_unlock (GstBaseSrc * bsrc);
 static gboolean gst_dvbsrc_is_seekable (GstBaseSrc * bsrc);
 static gboolean gst_dvbsrc_get_size (GstBaseSrc * src, guint64 * size);
@@ -330,6 +333,7 @@ gst_dvbsrc_class_init (GstDvbSrcClass * klass)
   gobject_class->get_property = gst_dvbsrc_get_property;
   gobject_class->finalize = gst_dvbsrc_finalize;
 
+  gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dvbsrc_change_state);
   gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvbsrc_start);
   gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvbsrc_stop);
   gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_dvbsrc_unlock);
@@ -679,7 +683,6 @@ gst_dvbsrc_close_devices (GstDvbSrc * object)
   return TRUE;
 }
 
-/* TODO: should open the frontend at NULL to READY to inform app the caps */
 static gboolean
 gst_dvbsrc_open_frontend (GstDvbSrc * object)
 {
@@ -962,6 +965,31 @@ gst_dvbsrc_create (GstPushSrc * element, GstBuffer ** buf)
 
 }
 
+static GstStateChangeReturn
+gst_dvbsrc_change_state (GstElement * element, GstStateChange transition)
+{
+  GstDvbSrc *src;
+  GstStateChangeReturn ret;
+
+  src = GST_DVBSRC (element);
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+      /* open frontend then close it again, just so caps sent */
+      gst_dvbsrc_open_frontend (src);
+      if (src->fd_frontend) {
+        close (src->fd_frontend);
+      }
+      break;
+    default:
+      break;
+  }
+
+  return ret;
+}
+
+
 static gboolean
 gst_dvbsrc_start (GstBaseSrc * bsrc)
 {
-- 
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