From f2aabb9f892ab76ac19eefb5696e6c9df3fae063 Mon Sep 17 00:00:00 2001
From: Thiago Santos <thiagoss@osg.samsung.com>
Date: Mon, 17 Aug 2015 14:32:56 -0300
Subject: [PATCH] daalaenc: add accept-caps handling

Ovewrite default handling to avoid doing a caps query. Check
the received caps against the possible formats supported by
the daala library.
---
 ext/daala/gstdaalaenc.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/ext/daala/gstdaalaenc.c b/ext/daala/gstdaalaenc.c
index 1aa2a78ce9..ef3ce4aa45 100644
--- a/ext/daala/gstdaalaenc.c
+++ b/ext/daala/gstdaalaenc.c
@@ -97,6 +97,8 @@ static GstFlowReturn daala_enc_pre_push (GstVideoEncoder * benc,
 static GstFlowReturn daala_enc_finish (GstVideoEncoder * enc);
 static gboolean daala_enc_propose_allocation (GstVideoEncoder * encoder,
     GstQuery * query);
+static gboolean gst_daala_enc_sink_query (GstVideoEncoder * encoder,
+    GstQuery * query);
 
 static GstCaps *daala_enc_getcaps (GstVideoEncoder * encoder, GstCaps * filter);
 static void daala_enc_get_property (GObject * object, guint prop_id,
@@ -145,6 +147,7 @@ gst_daala_enc_class_init (GstDaalaEncClass * klass)
   gstvideo_encoder_class->pre_push = GST_DEBUG_FUNCPTR (daala_enc_pre_push);
   gstvideo_encoder_class->finish = GST_DEBUG_FUNCPTR (daala_enc_finish);
   gstvideo_encoder_class->getcaps = GST_DEBUG_FUNCPTR (daala_enc_getcaps);
+  gstvideo_encoder_class->sink_query = GST_DEBUG_FUNCPTR (daala_enc_sink_query);
   gstvideo_encoder_class->propose_allocation =
       GST_DEBUG_FUNCPTR (daala_enc_propose_allocation);
 
@@ -292,6 +295,32 @@ daala_enc_get_supported_formats (void)
   return string == NULL ? NULL : g_string_free (string, FALSE);
 }
 
+static gboolean
+gst_daala_enc_sink_query (GstVideoEncoder * encoder, GstQuery * query)
+{
+  gboolean res;
+
+  switch (GST_QUERY_TYPE (query)) {
+    case GST_QUERY_ACCEPT_CAPS:{
+      GstCaps *acceptable, *caps;
+
+      acceptable = daala_enc_get_supported_formats ();
+      gst_query_parse_accept_caps (query, &caps);
+
+      gst_query_set_accept_caps_result (query,
+          gst_caps_is_subset (caps, acceptable));
+      gst_caps_unref (acceptable);
+      res = TRUE;
+    }
+      break;
+    default:
+      res = GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (encoder, query);
+      break;
+  }
+
+  return res;
+}
+
 static GstCaps *
 daala_enc_getcaps (GstVideoEncoder * encoder, GstCaps * filter)
 {