1 files changed, 73 insertions, 0 deletions
diff --git a/gst/codecalpha/gstvp9alphadecodebin.c b/gst/codecalpha/gstvp9alphadecodebin.c
new file mode 100644
index 000000000..6d897654e
--- /dev/null
+++ b/gst/codecalpha/gstvp9alphadecodebin.c
@@ -0,0 +1,73 @@
+/* GStreamer
+ * Copyright (C) <2021> Collabora Ltd.
+ *   Author: Nicolas Dufresne <nicolas.dufresne@collabora.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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/**
+ * SECTION:element-vp9alphadecodebin
+ * @title: Wrapper to decode VP9 alpha using vp9dec
+ *
+ * Use two `vp9dec` instance in order to decode VP9 alpha channel.
+ *
+ * Since: 1.20
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstvp9alphadecodebin.h"
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("video/x-vp9, codec-alpha = (boolean) true")
+    );
+
+struct _GstVp9AlphaDecodeBin
+{
+  GstAlphaDecodeBin parent;
+};
+
+#define gst_vp9_alpha_decode_bin_parent_class parent_class
+G_DEFINE_TYPE (GstVp9AlphaDecodeBin, gst_vp9_alpha_decode_bin,
+    GST_TYPE_ALPHA_DECODE_BIN);
+
+GST_ELEMENT_REGISTER_DEFINE (vp9_alpha_decode_bin, "vp9alphadecodebin",
+    GST_RANK_PRIMARY + GST_ALPHA_DECODE_BIN_RANK_OFFSET,
+    GST_TYPE_VP9_ALPHA_DECODE_BIN);
+
+static void
+gst_vp9_alpha_decode_bin_class_init (GstVp9AlphaDecodeBinClass * klass)
+{
+  GstAlphaDecodeBinClass *adbin_class = (GstAlphaDecodeBinClass *) klass;
+  GstElementClass *element_class = (GstElementClass *) klass;
+
+  adbin_class->decoder_name = "vp9dec";
+  gst_element_class_add_static_pad_template (element_class, &sink_template);
+
+  gst_element_class_set_static_metadata (element_class,
+      "VP9 Alpha Decoder", "Codec/Decoder/Video",
+      "Wrapper bin to decode VP9 with alpha stream.",
+      "Nicolas Dufresne <nicolas.dufresne@collabora.com>");
+}
+
+static void
+gst_vp9_alpha_decode_bin_init (GstVp9AlphaDecodeBin * self)
+{
+}