From 2df0ea3ab9c259533a83c66cabf0128b226f93d1 Mon Sep 17 00:00:00 2001
From: David Fernandez <d.fernandezlop@gmail.com>
Date: Tue, 16 Feb 2016 15:10:34 +0100
Subject: curlbasesink: don't send empty buffers

Fixes problem in curlhttpsink when qtmux uses faststart.

https://bugzilla.gnome.org/show_bug.cgi?id=762013
---
 ext/curl/gstcurlbasesink.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ext/curl/gstcurlbasesink.c b/ext/curl/gstcurlbasesink.c
index b47f2467d..b13c182eb 100644
--- a/ext/curl/gstcurlbasesink.c
+++ b/ext/curl/gstcurlbasesink.c
@@ -349,12 +349,17 @@ gst_curl_base_sink_render (GstBaseSink * bsink, GstBuffer * buf)
 
   sink = GST_CURL_BASE_SINK (bsink);
 
-  GST_OBJECT_LOCK (sink);
-
   gst_buffer_map (buf, &map, GST_MAP_READ);
   data = map.data;
   size = map.size;
 
+  if (size == 0) {
+    gst_buffer_unmap (buf, &map);
+    return GST_FLOW_OK;
+  }
+
+  GST_OBJECT_LOCK (sink);
+
   /* check if the transfer thread has encountered problems while the
    * pipeline thread was working elsewhere */
   if (sink->flow_ret != GST_FLOW_OK) {
-- 
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