From e65b9b974a7abf0bd80b0608d3197f9de254462a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Mon, 16 Dec 2013 10:13:36 +0100
Subject: [PATCH] diracparse: Post VIDEO_CODEC tag

---
 gst/videoparsers/gstdiracparse.c | 27 ++++++++++++++++++++++++++-
 gst/videoparsers/gstdiracparse.h |  2 ++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/gst/videoparsers/gstdiracparse.c b/gst/videoparsers/gstdiracparse.c
index e71383c406..9307f108b0 100644
--- a/gst/videoparsers/gstdiracparse.c
+++ b/gst/videoparsers/gstdiracparse.c
@@ -35,7 +35,8 @@
 #endif
 
 #include <gst/gst.h>
-#include <gst/base/gstbytereader.h>
+#include <gst/base/base.h>
+#include <gst/pbutils/pbutils.h>
 #include <string.h>
 #include "gstdiracparse.h"
 #include "dirac_parse.h"
@@ -189,8 +190,12 @@ gst_dirac_parse_finalize (GObject * object)
 static gboolean
 gst_dirac_parse_start (GstBaseParse * parse)
 {
+  GstDiracParse *diracparse = GST_DIRAC_PARSE (parse);
+
   gst_base_parse_set_min_frame_size (parse, 13);
 
+  diracparse->sent_codec_tag = FALSE;
+
   return TRUE;
 }
 
@@ -384,6 +389,26 @@ gst_dirac_parse_convert (GstBaseParse * parse, GstFormat src_format,
 static GstFlowReturn
 gst_dirac_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
 {
+  GstDiracParse *diracparse = GST_DIRAC_PARSE (parse);
+
+  if (!diracparse->sent_codec_tag) {
+    GstTagList *taglist;
+    GstCaps *caps;
+
+    taglist = gst_tag_list_new_empty ();
+
+    /* codec tag */
+    caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (parse));
+    gst_pb_utils_add_codec_description_to_tag_list (taglist,
+        GST_TAG_VIDEO_CODEC, caps);
+    gst_caps_unref (caps);
+
+    gst_pad_push_event (GST_BASE_PARSE_SRC_PAD (diracparse),
+        gst_event_new_tag (taglist));
+
+    /* also signals the end of first-frame processing */
+    diracparse->sent_codec_tag = TRUE;
+  }
 
   return GST_FLOW_OK;
 }
diff --git a/gst/videoparsers/gstdiracparse.h b/gst/videoparsers/gstdiracparse.h
index 407f272c4b..8b764deeb9 100644
--- a/gst/videoparsers/gstdiracparse.h
+++ b/gst/videoparsers/gstdiracparse.h
@@ -42,6 +42,8 @@ struct _GstDiracParse
   DiracSequenceHeader sequence_header;
 
   guint32 frame_number;
+
+  gboolean sent_codec_tag;
 };
 
 struct _GstDiracParseClass