d3d11: Add h264 decoder element

New decoder implementation based on dxva2 on d3d11 APIs. The DPB
management implementation is taken from Chromium.

1 files changed, 87 insertions, 0 deletions

diff --git a/sys/d3d11/gstd3d11h264dec.h b/sys/d3d11/gstd3d11h264dec.h
new file mode 100644
index 000000000..890e736db
--- /dev/null
+++ b/sys/d3d11/gstd3d11h264dec.h
@@ -0,0 +1,87 @@
+/* GStreamer
+ * Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.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.
+ */
+
+#ifndef __GST_D3D11_H264_DEC_H__
+#define __GST_D3D11_H264_DEC_H__
+
+#include "gsth264decoder.h"
+#include "gsth264picture.h"
+#include "gstd3d11decoder.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_D3D11_H264_DEC \
+  (gst_d3d11_h264_dec_get_type())
+#define GST_D3D11_H264_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_D3D11_H264_DEC,GstD3D11H264Dec))
+#define GST_D3D11_H264_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_D3D11_H264_DEC,GstD3D11H264DecClass))
+#define GST_D3D11_H264_DEC_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_D3D11_H264_DEC,GstD3D11H264DecClass))
+#define GST_IS_D3D11_H264_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_D3D11_H264_DEC))
+#define GST_IS_D3D11_H264_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_D3D11_H264_DEC))
+
+struct _GstD3D11H264Dec
+{
+  GstH264Decoder parent;
+
+  GstVideoCodecState *output_state;
+
+  GstD3D11Device *device;
+  gint adapter;
+
+  guint width, height;
+  guint coded_width, coded_height;
+  guint bitdepth;
+  guint chroma_format_idc;
+  GstVideoFormat out_format;
+
+  DXVA_PicEntry_H264 ref_frame_list[16];
+  INT field_order_cnt_list[16][2];
+  USHORT frame_num_list[16];
+  UINT used_for_reference_flags;
+  USHORT non_existing_frame_flags;
+
+  /* Array of DXVA_Slice_H264_Short */
+  GArray *slice_list;
+
+  GstD3D11Decoder *d3d11_decoder;
+
+  GstH264Picture *current_picture;
+
+  /* Pointing current bitstream buffer */
+  guint current_offset;
+  guint bitstream_buffer_size;
+  guint8 * bitstream_buffer_bytes;
+
+  gboolean use_d3d11_output;
+};
+
+struct _GstD3D11H264DecClass
+{
+  GstH264DecoderClass parent_class;
+};
+
+GType gst_d3d11_h264_dec_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_D3D11_H264_DEC_H__ */