From 558c1a83d89def7153a9a96901fc778124a7d354 Mon Sep 17 00:00:00 2001
From: Thiago Santos <ts.santos@partner.samsung.com>
Date: Fri, 1 Nov 2013 15:51:28 -0300
Subject: tee: use GstFlowCombiner

Use the newly added GstFlowCombiner to handle GstFlowReturn
combination

https://bugzilla.gnome.org/show_bug.cgi?id=709224
---
 plugins/elements/gsttee.c | 30 +++++++++++++++++++++---------
 plugins/elements/gsttee.h |  2 ++
 2 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/plugins/elements/gsttee.c b/plugins/elements/gsttee.c
index a6d4b9dac..0b142325f 100644
--- a/plugins/elements/gsttee.c
+++ b/plugins/elements/gsttee.c
@@ -135,6 +135,8 @@ struct _GstTeePad
 {
   GstPad parent;
 
+  GstFlowCombinerPadId flow_padid;
+
   gboolean pushed;
   GstFlowReturn result;
   gboolean removed;
@@ -208,6 +210,8 @@ restart:
     }
   }
 
+  gst_flow_combiner_free (GST_TEE_CAST (object)->flowcombiner);
+
   G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
@@ -289,6 +293,7 @@ gst_tee_init (GstTee * tee)
 
   tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
   tee->sink_mode = GST_PAD_MODE_NONE;
+  tee->flowcombiner = gst_flow_combiner_new ();
 
   gst_pad_set_event_function (tee->sinkpad,
       GST_DEBUG_FUNCPTR (gst_tee_sink_event));
@@ -371,6 +376,8 @@ gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
   gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
   GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
   gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
+  GST_TEE_PAD_CAST (srcpad)->flow_padid =
+      gst_flow_combiner_add_pad (tee->flowcombiner, srcpad);
 
   return srcpad;
 
@@ -417,6 +424,8 @@ gst_tee_release_pad (GstElement * element, GstPad * pad)
 
   gst_object_ref (pad);
   gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
+  gst_flow_combiner_remove_pad (tee->flowcombiner,
+      GST_TEE_PAD_CAST (pad)->flow_padid);
 
   gst_pad_set_active (pad, FALSE);
   GST_TEE_DYN_UNLOCK (tee);
@@ -568,6 +577,8 @@ clear_pads (GstPad * pad, GstTee * tee)
 {
   GST_TEE_PAD_CAST (pad)->pushed = FALSE;
   GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
+  gst_flow_combiner_set_flow (tee->flowcombiner,
+      GST_TEE_PAD_CAST (pad)->flow_padid, GST_FLOW_NOT_LINKED);
 }
 
 static GstFlowReturn
@@ -600,6 +611,8 @@ gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
     } else {
       ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
     }
+    gst_flow_combiner_set_flow (tee->flowcombiner,
+        GST_TEE_PAD_CAST (pad)->flow_padid, ret);
     return ret;
   }
 
@@ -652,15 +665,14 @@ restart:
       goto restart;
     }
 
+    cret =
+        gst_flow_combiner_update_flow (tee->flowcombiner,
+        GST_TEE_PAD_CAST (pad)->flow_padid, ret);
+
     /* stop pushing more buffers when we have a fatal error */
-    if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
+    if (G_UNLIKELY (cret != GST_FLOW_OK && cret != GST_FLOW_NOT_LINKED))
       goto error;
 
-    /* keep all other return values, overwriting the previous one. */
-    if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
-      GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
-      cret = ret;
-    }
     pads = g_list_next (pads);
   }
   GST_OBJECT_UNLOCK (tee);
@@ -674,15 +686,15 @@ restart:
 no_pads:
   {
     GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
-    ret = GST_FLOW_NOT_LINKED;
+    cret = GST_FLOW_NOT_LINKED;
     goto error;
   }
 error:
   {
-    GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
+    GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (cret));
     GST_OBJECT_UNLOCK (tee);
     gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
-    return ret;
+    return cret;
   }
 }
 
diff --git a/plugins/elements/gsttee.h b/plugins/elements/gsttee.h
index c092b8fac..23d9edc37 100644
--- a/plugins/elements/gsttee.h
+++ b/plugins/elements/gsttee.h
@@ -73,6 +73,8 @@ struct _GstTee {
   GstPad         *allocpad;
   guint           pad_counter;
 
+  GstFlowCombiner *flowcombiner;
+
   gboolean        has_chain;
   gboolean        silent;
   gchar          *last_message;
-- 
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