From: Wim Taymans <wim.taymans@collabora.co.uk>
Date: Fri, 2 Mar 2012 11:45:23 +0000 (+0100)
Subject: meta: add boolean to signal a region copy
X-Git-Tag: RELEASE-0.11.3~83
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5cd35d63868e6e196a818fcdc8c2e9664d8c7b4b;p=platform%2Fupstream%2Fgstreamer.git

meta: add boolean to signal a region copy

Add a boolean to the metadata copy transform that signals if a only a
region is copied.
---

diff --git a/gst/gstbuffer.c b/gst/gstbuffer.c
index 1b1db7e081..ca758b5d38 100644
--- a/gst/gstbuffer.c
+++ b/gst/gstbuffer.c
@@ -271,6 +271,7 @@ gst_buffer_copy_into (GstBuffer * dest, GstBuffer * src,
 {
   GstMetaItem *walk;
   gsize bufsize;
+  gboolean region = FALSE;
 
   g_return_if_fail (dest != NULL);
   g_return_if_fail (src != NULL);
@@ -283,8 +284,12 @@ gst_buffer_copy_into (GstBuffer * dest, GstBuffer * src,
 
   bufsize = gst_buffer_get_size (src);
   g_return_if_fail (bufsize >= offset);
+  if (offset > 0)
+    region = TRUE;
   if (size == -1)
     size = bufsize - offset;
+  if (size < bufsize)
+    region = TRUE;
   g_return_if_fail (bufsize >= offset + size);
 
   GST_CAT_LOG (GST_CAT_BUFFER, "copy %p to %p, offset %" G_GSIZE_FORMAT
@@ -362,6 +367,7 @@ gst_buffer_copy_into (GstBuffer * dest, GstBuffer * src,
       if (info->transform_func) {
         GstMetaTransformCopy copy_data;
 
+        copy_data.region = region;
         copy_data.offset = offset;
         copy_data.size = size;
 
diff --git a/gst/gstmeta.h b/gst/gstmeta.h
index a99dd3cfca..c616a74833 100644
--- a/gst/gstmeta.h
+++ b/gst/gstmeta.h
@@ -123,12 +123,14 @@ GST_EXPORT GQuark _gst_meta_transform_copy;
 
 /**
  * GstMetaTransformCopy:
- * @offset: the offset to copy
- * @size: the size to copy
+ * @region: %TRUE if only region is copied
+ * @offset: the offset to copy, 0 if @region is %FALSE, otherwise > 0
+ * @size: the size to copy, -1 or the buffer size when @region is %FALSE
  *
  * Extra data passed to a "gst-copy" transform #GstMetaTransformFunction.
  */
 typedef struct {
+  gboolean region;
   gsize offset;
   gsize size;
 } GstMetaTransformCopy;