From ddea2e4498056e69ba28fe6e67c66abbf1d1fe04 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 17 Sep 2014 17:10:58 +0300
Subject: [PATCH] vtenc: Prepare encoder after setup

This will allow encoding to happen faster on the first frame.
---
 sys/applemedia/vtenc.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/sys/applemedia/vtenc.c b/sys/applemedia/vtenc.c
index 644f93dddb..a090df7e1f 100644
--- a/sys/applemedia/vtenc.c
+++ b/sys/applemedia/vtenc.c
@@ -458,8 +458,11 @@ gst_vtenc_create_session (GstVTEnc * self)
       self, &session);
   GST_INFO_OBJECT (self, "VTCompressionSessionCreate for %d x %d => %d",
       self->negotiated_width, self->negotiated_height, (int) status);
-  if (status != noErr)
+  if (status != noErr) {
+    GST_ERROR_OBJECT (self, "VTCompressionSessionCreate() returned: %d",
+        (int) status);
     goto beach;
+  }
 
   if (self->dump_properties) {
     gst_vtenc_session_dump_properties (self, session);
@@ -490,6 +493,13 @@ gst_vtenc_create_session (GstVTEnc * self)
   gst_vtenc_session_configure_bitrate (self, session,
       gst_vtenc_get_bitrate (self));
 
+  status = VTCompressionSessionPrepareToEncodeFrames (session);
+  if (status != noErr) {
+    GST_ERROR_OBJECT (self,
+        "VTCompressionSessionPrepareToEncodeFrames() returned: %d",
+        (int) status);
+  }
+
 beach:
   CFRelease (pb_attrs);