From 4b019ba268e0136e6cbb11de90533634d198c5eb Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Tue, 14 Oct 2014 16:41:51 +0200
Subject: [PATCH] glfilter: add uploaded_buffer field

---
 gst-libs/gst/gl/gstglfilter.c | 13 ++++++++++++-
 gst-libs/gst/gl/gstglfilter.h |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/gst-libs/gst/gl/gstglfilter.c b/gst-libs/gst/gl/gstglfilter.c
index c04275006a..a725fe281a 100644
--- a/gst-libs/gst/gl/gstglfilter.c
+++ b/gst-libs/gst/gl/gstglfilter.c
@@ -256,6 +256,11 @@ gst_gl_filter_reset (GstGLFilter * filter)
     filter->download = NULL;
   }
 
+  if (filter->uploaded_buffer) {
+    gst_buffer_unref (filter->uploaded_buffer);
+    filter->uploaded_buffer = NULL;
+  }
+
   if (filter->context) {
     if (filter_class->onReset)
       filter_class->onReset (filter);
@@ -1183,7 +1188,13 @@ gst_gl_filter_filter_texture (GstGLFilter * filter, GstBuffer * inbuf,
 
   filter_class = GST_GL_FILTER_GET_CLASS (filter);
 
-  if (!gst_gl_upload_perform_with_buffer (filter->upload, inbuf, &in_tex, NULL))
+  if (filter->uploaded_buffer) {
+    gst_buffer_unref (filter->uploaded_buffer);
+    filter->uploaded_buffer = NULL;
+  }
+
+  if (!gst_gl_upload_perform_with_buffer (filter->upload, inbuf, &in_tex,
+          &filter->uploaded_buffer))
     return FALSE;
 
   to_download |= !gst_is_gl_memory (gst_buffer_peek_memory (outbuf, 0));
diff --git a/gst-libs/gst/gl/gstglfilter.h b/gst-libs/gst/gl/gstglfilter.h
index c78649363a..2a8d0dfcce 100644
--- a/gst-libs/gst/gl/gstglfilter.h
+++ b/gst-libs/gst/gl/gstglfilter.h
@@ -77,6 +77,8 @@ struct _GstGLFilter
   GstGLUpload       *upload;
   GstGLDownload     *download;
 
+  GstBuffer         *uploaded_buffer;
+
   /* <private> */
   GLuint             in_tex_id;
   GLuint             out_tex_id;