videopool: add stuff related to bufferpools

Add bufferpool options and extra config parameters.

diff --git a/gst-libs/gst/video/gstvideopool.h b/gst-libs/gst/video/gstvideopool.h
new file mode 100644 (file)
index 0000000..059eba9
--- /dev/null
+++ b/gst-libs/gst/video/gstvideopool.h
@@ -0,0 +1,76 @@
+/* GStreamer
+ * Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_VIDEO_POOL_H__
+#define __GST_VIDEO_POOL_H__
+
+#include <gst/gst.h>
+
+#include <gst/video/video.h>
+
+G_BEGIN_DECLS
+
+/**
+ * GST_BUFFER_POOL_OPTION_META_VIDEO:
+ *
+ * An option that can be activated on bufferpool to request video metadata
+ * on buffers from the pool.
+ */
+#define GST_BUFFER_POOL_OPTION_META_VIDEO "GstBufferPoolOptionMetaVideo"
+
+/**
+ * GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT:
+ *
+ * A bufferpool option to enable extra padding. When a bufferpool supports this
+ * option, gst_buffer_pool_set_video_layout() can be called.
+ */
+#define GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT "GstBufferPoolOptionVideoLayout"
+
+typedef struct _GstBufferPoolOptionVideoLayout GstBufferPoolOptionVideoLayout;
+
+/**
+ * GstBufferPoolOptionVideoLayout:
+ * @padding_left: extra pixels on the left side
+ * @padding_right: extra pixels on the right side
+ * @padding_top: extra pixels on the top
+ * @padding_bottom: extra pixels on the bottom
+ * @stride_align: array with extra alignment requirements for the strides
+ *
+ * Extra parameters to configure the memory layout for video buffers. This
+ * structure is used to configure the bufferpool if it supports the
+ * #GST_BUFFER_POOL_OPTION_VIDEO_LAYOUT.
+ */
+struct _GstBufferPoolOptionVideoLayout
+{
+  guint padding_left;
+  guint padding_right;
+  guint padding_top;
+  guint padding_bottom;
+  gint stride_align[GST_VIDEO_MAX_PLANES];
+};
+
+void             gst_buffer_pool_config_set_video_layout  (GstStructure *config,
+                                                           GstBufferPoolOptionVideoLayout *layout);
+gboolean         gst_buffer_pool_config_get_video_layout  (GstStructure *config,
+                                                           GstBufferPoolOptionVideoLayout *layout);
+
+
+G_END_DECLS
+
+#endif /* __GST_VIDEO_POOL_H__ */