--- /dev/null
+/*
+ * GStreamer
+ * Copyright (C) 2012 Matthew Waters <ystreet00@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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/video/video.h>
+#include <gst/video/gstvideometa.h>
+
+#include "gstglmeta.h"
+
+/* GstVideoMeta map/unmap */
+gboolean
+gst_gl_meta_map (GstVideoMeta * meta, guint plane, GstMapInfo * info,
+ gpointer * data, gint * stride, GstMapFlags flags)
+{
+ return FALSE;
+}
+
+gboolean
+gst_gl_meta_unmap (GstVideoMeta * meta, guint plane, GstMapInfo * info)
+{
+ return FALSE;
+}
+
+static void
+gst_gl_meta_init (GstGLMeta * gl_meta, gpointer params, GstBuffer * buffer)
+{
+ gl_meta->buffer = buffer;
+}
+
+void
+gst_gl_meta_free (GstGLMeta * gl_meta, GstBuffer * buffer)
+{
+ if (gl_meta->display) {
+ g_object_unref (gl_meta->display);
+ gl_meta->display = NULL;
+ }
+}
+
+static gboolean
+gst_gl_meta_transform (GstBuffer * dest, GstMeta * meta,
+ GstBuffer * buffer, GQuark type, gpointer data)
+{
+ GstGLMeta *dmeta, *smeta;
+
+ smeta = (GstGLMeta *) meta;
+
+ if (GST_META_TRANSFORM_IS_COPY (type)) {
+ GstMetaTransformCopy *copy = data;
+
+ if (!copy->region) {
+ /* only copy if the complete data is copied as well */
+ dmeta =
+ (GstGLMeta *) gst_buffer_add_meta (dest, GST_GL_META_INFO,
+ smeta->display);
+ dmeta->buffer = dest;
+
+ dmeta->memory =
+ (GstGLMemory *) gst_memory_copy (GST_MEMORY_CAST (smeta->memory), 0,
+ -1);
+ }
+ }
+ return TRUE;
+}
+
+GType
+gst_gl_meta_api_get_type (void)
+{
+ static volatile GType type;
+ static const gchar *tags[] = { "memory", NULL }; /* don't know what to set here */
+
+ if (g_once_init_enter (&type)) {
+ GType _type = gst_meta_api_type_register ("GstGLMetaAPI", tags);
+ g_once_init_leave (&type, _type);
+ }
+ return type;
+}
+
+const GstMetaInfo *
+gst_gl_meta_get_info (void)
+{
+ static const GstMetaInfo *gl_meta_info = NULL;
+
+ if (gl_meta_info == NULL) {
+ gl_meta_info =
+ gst_meta_register (GST_GL_META_API_TYPE, "GstGLMeta",
+ sizeof (GstGLMeta), (GstMetaInitFunction) gst_gl_meta_init,
+ (GstMetaFreeFunction) gst_gl_meta_free,
+ (GstMetaTransformFunction) gst_gl_meta_transform);
+ }
+ return gl_meta_info;
+}
+
+/**
+ * gst_buffer_add_gl_meta:
+ * @buffer: a #GstBuffer
+ * @display: the #GstGLDisplay to use
+ *
+ * Creates and adds a #GstGLMeta to a @buffer.
+ *
+ * Returns: (transfer full): a newly created #GstGLMeta
+ */
+GstGLMeta *
+gst_buffer_add_gl_meta (GstBuffer * buffer, GstGLDisplay * display)
+{
+ GstGLMeta *gl_meta;
+
+ gl_meta = (GstGLMeta *) gst_buffer_add_meta (buffer, GST_GL_META_INFO, NULL);
+
+ gl_meta->display = g_object_ref (display);
+
+ g_assert (gst_buffer_n_memory (buffer) == 1);
+
+ gl_meta->memory = (GstGLMemory *) gst_buffer_get_memory (buffer, 0);
+
+ return gl_meta;
+}
--- /dev/null
+/*
+ * GStreame
+ * Copyright (C) 2007 Matthew Waters <ystreet00@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_GL_META_H_
+#define _GST_GL_META_H_
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/video/gstvideometa.h>
+
+#include "gstgldisplay.h"
+#include "gstglmemory.h"
+
+G_BEGIN_DECLS
+
+typedef struct _GstGLMeta GstGLMeta;
+
+GType gst_gl_meta_api_get_type (void);
+#define GST_GL_META_API_TYPE (gst_gl_meta_api_get_type())
+#define GST_GL_META_INFO (gst_gl_meta_get_info())
+const GstMetaInfo * gst_gl_meta_get_info (void);
+
+/**
+ * GstGLMeta:
+ * @meta: parent #GstMeta
+ * @buffer: #GstBuffer this meta belongs to
+ * @video_meta: the #GstVideoMeta associated with this meta
+ * @display: the #GstGLDisplay
+ * @texture_id: the GL texture associated with this meta
+ *
+ * Extra buffer metadata describing OpenGL objects
+ */
+struct _GstGLMeta {
+ GstMeta meta;
+ GstBuffer *buffer;
+
+ GstGLDisplay *display;
+
+ GstGLMemory *memory;
+};
+
+#ifndef OPENGL_ES2
+# define GST_GL_VIDEO_CAPS \
+ GST_VIDEO_CAPS_MAKE ("{ RGB, RGBx, RGBA, BGR, BGRx, BGRA, xRGB, xBGR, ARGB, ABGR, I420, YV12, YUY2, UYVY, AYUV }")
+#else /* OPENGL_ES2 */
+# define GST_GL_VIDEO_CAPS \
+ GST_VIDEO_CAPS_MAKE ("{ RGB, RGBx, RGBA, I420, YV12, YUY2, UYVY, AYUV }")
+#endif /* OPENGL_ES2 */
+
+#define gst_buffer_get_gl_meta(b) ((GstGLMeta*)gst_buffer_get_meta((b),GST_GL_META_API_TYPE))
+GstGLMeta * gst_buffer_add_gl_meta (GstBuffer * buffer, GstGLDisplay * display);
+
+gboolean gst_gl_meta_map (GstVideoMeta *meta, guint plane, GstMapInfo *info,
+ gpointer *data, gint * stride, GstMapFlags flags);
+gboolean gst_gl_meta_unmap (GstVideoMeta *meta, guint plane, GstMapInfo *info);
+
+G_END_DECLS
+
+#endif /* _GST_GL_META_H_ */