d3d11: Add AV1 decoder

Introduce Direct3D11/DXVA AV1 decoder element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2365>

6 files changed, 1562 insertions, 0 deletions

diff --git a/sys/d3d11/gstd3d11av1dec.cpp b/sys/d3d11/gstd3d11av1dec.cpp
new file mode 100644
index 000000000..c8bc36971
--- /dev/null
+++ b/sys/d3d11/gstd3d11av1dec.cpp
@@ -0,0 +1,1505 @@
+/* GStreamer
+ * Copyright (C) 2021 Seungha Yang <seungha@centricular.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-d3d11av19dec
+ * @title: d3d11av1dec
+ *
+ * A Direct3D11/DXVA based AV1 video decoder
+ *
+ * ## Example launch line
+ * ```
+ * gst-launch-1.0 filesrc location=/path/to/av1/file ! parsebin ! d3d11av1dec ! d3d11videosink
+ * ```
+ *
+ * Since: 1.20
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gstd3d11av1dec.h"
+
+#include <gst/codecs/gstav1decoder.h>
+#include <string.h>
+
+/* HACK: to expose dxva data structure on UWP */
+#ifdef WINAPI_PARTITION_DESKTOP
+#undef WINAPI_PARTITION_DESKTOP
+#endif
+#define WINAPI_PARTITION_DESKTOP 1
+#include <d3d9.h>
+#include <dxva.h>
+
+/* Might not be defined in dxva.h, copied from DXVA AV1 spec available at
+ * https://www.microsoft.com/en-us/download/confirmation.aspx?id=101577
+ * and modified with "GST_" prefix
+ */
+#pragma pack(push, 1)
+typedef struct _GST_DXVA_PicEntry_AV1
+{
+  UINT width;
+  UINT height;
+
+  // Global motion parameters
+  INT wmmat[6];
+  union
+  {
+    struct
+    {
+      UCHAR wminvalid:1;
+      UCHAR wmtype:2;
+      UCHAR Reserved:5;
+    };
+    UCHAR wGlobalMotionFlags;
+  };
+
+  UCHAR Index;
+  USHORT Reserved16Bits;
+
+} GST_DXVA_PicEntry_AV1;
+
+/* AV1 picture parameters structure */
+typedef struct _GST_DXVA_PicParams_AV1
+{
+  UINT width;
+  UINT height;
+
+  UINT max_width;
+  UINT max_height;
+
+  UCHAR CurrPicTextureIndex;
+  UCHAR superres_denom;
+  UCHAR bitdepth;
+  UCHAR seq_profile;
+
+  // Tiles:
+  struct
+  {
+    UCHAR cols;
+    UCHAR rows;
+    USHORT context_update_id;
+    USHORT widths[64];
+    USHORT heights[64];
+  } tiles;
+
+  // Coding Tools
+  union
+  {
+    struct
+    {
+      UINT use_128x128_superblock:1;
+      UINT intra_edge_filter:1;
+      UINT interintra_compound:1;
+      UINT masked_compound:1;
+      UINT warped_motion:1;
+      UINT dual_filter:1;
+      UINT jnt_comp:1;
+      UINT screen_content_tools:1;
+      UINT integer_mv:1;
+      UINT cdef:1;
+      UINT restoration:1;
+      UINT film_grain:1;
+      UINT intrabc:1;
+      UINT high_precision_mv:1;
+      UINT switchable_motion_mode:1;
+      UINT filter_intra:1;
+      UINT disable_frame_end_update_cdf:1;
+      UINT disable_cdf_update:1;
+      UINT reference_mode:1;
+      UINT skip_mode:1;
+      UINT reduced_tx_set:1;
+      UINT superres:1;
+      UINT tx_mode:2;
+      UINT use_ref_frame_mvs:1;
+      UINT enable_ref_frame_mvs:1;
+      UINT reference_frame_update:1;
+      UINT Reserved:5;
+    };
+    UINT32 CodingParamToolFlags;
+  } coding;
+
+  // Format & Picture Info flags
+  union
+  {
+    struct
+    {
+      UCHAR frame_type:2;
+      UCHAR show_frame:1;
+      UCHAR showable_frame:1;
+      UCHAR subsampling_x:1;
+      UCHAR subsampling_y:1;
+      UCHAR mono_chrome:1;
+      UCHAR Reserved:1;
+    };
+    UCHAR FormatAndPictureInfoFlags;
+  } format;
+
+  // References
+  UCHAR primary_ref_frame;
+  UCHAR order_hint;
+  UCHAR order_hint_bits;
+
+  GST_DXVA_PicEntry_AV1 frame_refs[7];
+  UCHAR RefFrameMapTextureIndex[8];
+
+  // Loop filter parameters
+  struct
+  {
+    UCHAR filter_level[2];
+    UCHAR filter_level_u;
+    UCHAR filter_level_v;
+
+    UCHAR sharpness_level;
+    union
+    {
+      struct
+      {
+        UCHAR mode_ref_delta_enabled:1;
+        UCHAR mode_ref_delta_update:1;
+        UCHAR delta_lf_multi:1;
+        UCHAR delta_lf_present:1;
+        UCHAR Reserved:4;
+      };
+      UCHAR ControlFlags;
+    } DUMMYUNIONNAME;
+    CHAR ref_deltas[8];
+    CHAR mode_deltas[2];
+    UCHAR delta_lf_res;
+    UCHAR frame_restoration_type[3];
+    USHORT log2_restoration_unit_size[3];
+    UINT16 Reserved16Bits;
+  } loop_filter;
+
+  // Quantization
+  struct
+  {
+    union
+    {
+      struct
+      {
+        UCHAR delta_q_present:1;
+        UCHAR delta_q_res:2;
+        UCHAR Reserved:5;
+      };
+      UCHAR ControlFlags;
+    } DUMMYUNIONNAME;
+
+    UCHAR base_qindex;
+    CHAR y_dc_delta_q;
+    CHAR u_dc_delta_q;
+    CHAR v_dc_delta_q;
+    CHAR u_ac_delta_q;
+    CHAR v_ac_delta_q;
+    // using_qmatrix:
+    UCHAR qm_y;
+    UCHAR qm_u;
+    UCHAR qm_v;
+    UINT16 Reserved16Bits;
+  } quantization;
+
+  // Cdef parameters
+  struct
+  {
+    union
+    {
+      struct
+      {
+        UCHAR damping:2;
+        UCHAR bits:2;
+        UCHAR Reserved:4;
+      };
+      UCHAR ControlFlags;
+    } DUMMYUNIONNAME;
+
+    union
+    {
+      struct
+      {
+        UCHAR primary:6;
+        UCHAR secondary:2;
+      };
+      UCHAR combined;
+    } y_strengths[8];
+
+    union
+    {
+      struct
+      {
+        UCHAR primary:6;
+        UCHAR secondary:2;
+      };
+      UCHAR combined;
+    } uv_strengths[8];
+
+  } cdef;
+
+  UCHAR interp_filter;
+
+  // Segmentation
+  struct
+  {
+    union
+    {
+      struct
+      {
+        UCHAR enabled:1;
+        UCHAR update_map:1;
+        UCHAR update_data:1;
+        UCHAR temporal_update:1;
+        UCHAR Reserved:4;
+      };
+      UCHAR ControlFlags;
+    } DUMMYUNIONNAME;
+    UCHAR Reserved24Bits[3];
+
+    union
+    {
+      struct
+      {
+        UCHAR alt_q:1;
+        UCHAR alt_lf_y_v:1;
+        UCHAR alt_lf_y_h:1;
+        UCHAR alt_lf_u:1;
+        UCHAR alt_lf_v:1;
+        UCHAR ref_frame:1;
+        UCHAR skip:1;
+        UCHAR globalmv:1;
+      };
+      UCHAR mask;
+    } feature_mask[8];
+
+    SHORT feature_data[8][8];
+
+  } segmentation;
+
+  struct
+  {
+    union
+    {
+      struct
+      {
+        USHORT apply_grain:1;
+        USHORT scaling_shift_minus8:2;
+        USHORT chroma_scaling_from_luma:1;
+        USHORT ar_coeff_lag:2;
+        USHORT ar_coeff_shift_minus6:2;
+        USHORT grain_scale_shift:2;
+        USHORT overlap_flag:1;
+        USHORT clip_to_restricted_range:1;
+        USHORT matrix_coeff_is_identity:1;
+        USHORT Reserved:3;
+      };
+      USHORT ControlFlags;
+    } DUMMYUNIONNAME;
+
+    USHORT grain_seed;
+    UCHAR scaling_points_y[14][2];
+    UCHAR num_y_points;
+    UCHAR scaling_points_cb[10][2];
+    UCHAR num_cb_points;
+    UCHAR scaling_points_cr[10][2];
+    UCHAR num_cr_points;
+    UCHAR ar_coeffs_y[24];
+    UCHAR ar_coeffs_cb[25];
+    UCHAR ar_coeffs_cr[25];
+    UCHAR cb_mult;
+    UCHAR cb_luma_mult;
+    UCHAR cr_mult;
+    UCHAR cr_luma_mult;
+    UCHAR Reserved8Bits;
+    SHORT cb_offset;
+    SHORT cr_offset;
+  } film_grain;
+
+  UINT Reserved32Bits;
+  UINT StatusReportFeedbackNumber;
+} GST_DXVA_PicParams_AV1;
+
+typedef struct _GST_DXVA_Tile_AV1
+{
+  UINT DataOffset;
+  UINT DataSize;
+  USHORT row;
+  USHORT column;
+  USHORT Reserved16Bits;
+  UCHAR anchor_frame;
+  UCHAR Reserved8Bits;
+} GST_DXVA_Tile_AV1;
+
+#pragma pack(pop)
+
+/* *INDENT-OFF* */
+
+G_BEGIN_DECLS
+
+GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_av1_dec_debug);
+#define GST_CAT_DEFAULT gst_d3d11_av1_dec_debug
+
+G_END_DECLS
+/* *INDENT-ON* */
+
+enum
+{
+  PROP_0,
+  PROP_ADAPTER,
+  PROP_DEVICE_ID,
+  PROP_VENDOR_ID,
+};
+
+/* reference list 8 + 4 margin */
+#define NUM_OUTPUT_VIEW 12
+
+typedef struct _GstD3D11AV1Dec
+{
+  GstAV1Decoder parent;
+
+  GstD3D11Device *device;
+  GstD3D11Decoder *d3d11_decoder;
+
+  GstAV1SequenceHeaderOBU seq_hdr;
+
+  GST_DXVA_PicParams_AV1 pic_params;
+  /* Array of GST_DXVA_Tile_AV1 */
+  GArray *tile_list;
+
+  guint written_buffer_size;
+  guint remaining_buffer_size;
+  guint8 *bitstream_buffer_data;
+
+  guint max_width;
+  guint max_height;
+  guint bitdepth;
+} GstD3D11AV1Dec;
+
+typedef struct _GstD3D11AV1DecClass
+{
+  GstAV1DecoderClass parent_class;
+  guint adapter;
+  guint device_id;
+  guint vendor_id;
+} GstD3D11AV1DecClass;
+
+static GstElementClass *parent_class = NULL;
+
+#define GST_D3D11_AV1_DEC(object) ((GstD3D11AV1Dec *) (object))
+#define GST_D3D11_AV1_DEC_GET_CLASS(object) \
+    (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstD3D11AV1DecClass))
+
+static void gst_d3d11_av1_dec_get_property (GObject * object,
+    guint prop_id, GValue * value, GParamSpec * pspec);
+static void gst_d3d11_av1_dec_dispose (GObject * object);
+
+static void gst_d3d11_av1_dec_set_context (GstElement * element,
+    GstContext * context);
+
+static gboolean gst_d3d11_av1_dec_open (GstVideoDecoder * decoder);
+static gboolean gst_d3d11_av1_dec_close (GstVideoDecoder * decoder);
+static gboolean gst_d3d11_av1_dec_negotiate (GstVideoDecoder * decoder);
+static gboolean gst_d3d11_av1_dec_decide_allocation (GstVideoDecoder *
+    decoder, GstQuery * query);
+static gboolean gst_d3d11_av1_dec_src_query (GstVideoDecoder * decoder,
+    GstQuery * query);
+static gboolean gst_d3d11_av1_dec_sink_event (GstVideoDecoder * decoder,
+    GstEvent * event);
+
+/* GstAV1Decoder */
+static gboolean gst_d3d11_av1_dec_new_sequence (GstAV1Decoder * decoder,
+    const GstAV1SequenceHeaderOBU * seq_hdr);
+static gboolean gst_d3d11_av1_dec_new_picture (GstAV1Decoder * decoder,
+    GstVideoCodecFrame * frame, GstAV1Picture * picture);
+static GstAV1Picture *gst_d3d11_av1_dec_duplicate_picture (GstAV1Decoder *
+    decoder, GstAV1Picture * picture);
+static gboolean gst_d3d11_av1_dec_start_picture (GstAV1Decoder * decoder,
+    GstAV1Picture * picture, GstAV1Dpb * dpb);
+static gboolean gst_d3d11_av1_dec_decode_tile (GstAV1Decoder * decoder,
+    GstAV1Picture * picture, GstAV1Tile * tile);
+static gboolean gst_d3d11_av1_dec_end_picture (GstAV1Decoder * decoder,
+    GstAV1Picture * picture);
+static GstFlowReturn gst_d3d11_av1_dec_output_picture (GstAV1Decoder *
+    decoder, GstVideoCodecFrame * frame, GstAV1Picture * picture);
+
+static void
+gst_d3d11_av1_dec_class_init (GstD3D11AV1DecClass * klass, gpointer data)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+  GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
+  GstAV1DecoderClass *av1decoder_class = GST_AV1_DECODER_CLASS (klass);
+  GstD3D11DecoderClassData *cdata = (GstD3D11DecoderClassData *) data;
+  gchar *long_name;
+
+  gobject_class->get_property = gst_d3d11_av1_dec_get_property;
+  gobject_class->dispose = gst_d3d11_av1_dec_dispose;
+
+  g_object_class_install_property (gobject_class, PROP_ADAPTER,
+      g_param_spec_uint ("adapter", "Adapter",
+          "DXGI Adapter index for creating device",
+          0, G_MAXUINT32, cdata->adapter,
+          (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
+  g_object_class_install_property (gobject_class, PROP_DEVICE_ID,
+      g_param_spec_uint ("device-id", "Device Id",
+          "DXGI Device ID", 0, G_MAXUINT32, 0,
+          (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
+  g_object_class_install_property (gobject_class, PROP_VENDOR_ID,
+      g_param_spec_uint ("vendor-id", "Vendor Id",
+          "DXGI Vendor ID", 0, G_MAXUINT32, 0,
+          (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
+
+  parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
+
+  klass->adapter = cdata->adapter;
+  klass->device_id = cdata->device_id;
+  klass->vendor_id = cdata->vendor_id;
+
+  element_class->set_context =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_set_context);
+
+  long_name =
+      g_strdup_printf ("Direct3D11/DXVA AV1 %s Decoder", cdata->description);
+  gst_element_class_set_metadata (element_class, long_name,
+      "Codec/Decoder/Video/Hardware", "A Direct3D11/DXVA AV1 video decoder",
+      "Seungha Yang <seungha@centricular.com>");
+  g_free (long_name);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+          cdata->sink_caps));
+  gst_element_class_add_pad_template (element_class,
+      gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+          cdata->src_caps));
+  gst_d3d11_decoder_class_data_free (cdata);
+
+  decoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_open);
+  decoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_close);
+  decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_negotiate);
+  decoder_class->decide_allocation =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_decide_allocation);
+  decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_src_query);
+  decoder_class->sink_event = GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_sink_event);
+
+  av1decoder_class->new_sequence =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_new_sequence);
+  av1decoder_class->new_picture =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_new_picture);
+  av1decoder_class->duplicate_picture =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_duplicate_picture);
+  av1decoder_class->start_picture =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_start_picture);
+  av1decoder_class->decode_tile =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_decode_tile);
+  av1decoder_class->end_picture =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_end_picture);
+  av1decoder_class->output_picture =
+      GST_DEBUG_FUNCPTR (gst_d3d11_av1_dec_output_picture);
+}
+
+static void
+gst_d3d11_av1_dec_init (GstD3D11AV1Dec * self)
+{
+  self->tile_list = g_array_new (FALSE, TRUE, sizeof (GST_DXVA_Tile_AV1));
+}
+
+static void
+gst_d3d11_av1_dec_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstD3D11AV1DecClass *klass = GST_D3D11_AV1_DEC_GET_CLASS (object);
+
+  switch (prop_id) {
+    case PROP_ADAPTER:
+      g_value_set_uint (value, klass->adapter);
+      break;
+    case PROP_DEVICE_ID:
+      g_value_set_uint (value, klass->device_id);
+      break;
+    case PROP_VENDOR_ID:
+      g_value_set_uint (value, klass->vendor_id);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_d3d11_av1_dec_dispose (GObject * object)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (object);
+
+  g_clear_pointer (&self->tile_list, g_array_unref);
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_d3d11_av1_dec_set_context (GstElement * element, GstContext * context)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (element);
+  GstD3D11AV1DecClass *klass = GST_D3D11_AV1_DEC_GET_CLASS (self);
+
+  gst_d3d11_handle_set_context (element, context, klass->adapter,
+      &self->device);
+
+  GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
+}
+
+static gboolean
+gst_d3d11_av1_dec_open (GstVideoDecoder * decoder)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  GstD3D11AV1DecClass *klass = GST_D3D11_AV1_DEC_GET_CLASS (self);
+
+  if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), klass->adapter,
+          &self->device)) {
+    GST_ERROR_OBJECT (self, "Cannot create d3d11device");
+    return FALSE;
+  }
+
+  self->d3d11_decoder = gst_d3d11_decoder_new (self->device);
+
+  if (!self->d3d11_decoder) {
+    GST_ERROR_OBJECT (self, "Cannot create d3d11 decoder");
+    gst_clear_object (&self->device);
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_d3d11_av1_dec_close (GstVideoDecoder * decoder)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+
+  gst_clear_object (&self->d3d11_decoder);
+  gst_clear_object (&self->device);
+
+  return TRUE;
+}
+
+static gboolean
+gst_d3d11_av1_dec_negotiate (GstVideoDecoder * decoder)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+
+  if (!gst_d3d11_decoder_negotiate (self->d3d11_decoder, decoder))
+    return FALSE;
+
+  return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
+}
+
+static gboolean
+gst_d3d11_av1_dec_decide_allocation (GstVideoDecoder * decoder,
+    GstQuery * query)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+
+  if (!gst_d3d11_decoder_decide_allocation (self->d3d11_decoder,
+          decoder, query)) {
+    return FALSE;
+  }
+
+  return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation
+      (decoder, query);
+}
+
+static gboolean
+gst_d3d11_av1_dec_src_query (GstVideoDecoder * decoder, GstQuery * query)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+
+  switch (GST_QUERY_TYPE (query)) {
+    case GST_QUERY_CONTEXT:
+      if (gst_d3d11_handle_context_query (GST_ELEMENT (decoder),
+              query, self->device)) {
+        return TRUE;
+      }
+      break;
+    default:
+      break;
+  }
+
+  return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
+}
+
+static gboolean
+gst_d3d11_av1_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+
+  switch (GST_EVENT_TYPE (event)) {
+    case GST_EVENT_FLUSH_START:
+      if (self->d3d11_decoder)
+        gst_d3d11_decoder_set_flushing (self->d3d11_decoder, decoder, TRUE);
+      break;
+    case GST_EVENT_FLUSH_STOP:
+      if (self->d3d11_decoder)
+        gst_d3d11_decoder_set_flushing (self->d3d11_decoder, decoder, FALSE);
+      break;
+    default:
+      break;
+  }
+
+  return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event);
+}
+
+static gboolean
+gst_d3d11_av1_dec_new_sequence (GstAV1Decoder * decoder,
+    const GstAV1SequenceHeaderOBU * seq_hdr)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  gboolean modified = FALSE;
+  guint max_width, max_height;
+
+  GST_LOG_OBJECT (self, "new sequence");
+
+  if (seq_hdr->seq_profile != GST_AV1_PROFILE_0) {
+    GST_WARNING_OBJECT (self, "Unsupported profile %d", seq_hdr->seq_profile);
+    return FALSE;
+  }
+
+  if (seq_hdr->num_planes != 3) {
+    GST_WARNING_OBJECT (self, "Monochrome is not supported");
+    return FALSE;
+  }
+
+  self->seq_hdr = *seq_hdr;
+
+  if (self->bitdepth != seq_hdr->bit_depth) {
+    GST_INFO_OBJECT (self, "Bitdepth changed %d -> %d", self->bitdepth,
+        seq_hdr->bit_depth);
+    self->bitdepth = seq_hdr->bit_depth;
+    modified = TRUE;
+  }
+
+  max_width = seq_hdr->max_frame_width_minus_1 + 1;
+  max_height = seq_hdr->max_frame_height_minus_1 + 1;
+
+  if (self->max_width != max_width || self->max_height != max_height) {
+    GST_INFO_OBJECT (self, "Resolution changed %dx%d -> %dx%d",
+        self->max_width, self->max_height, max_width, max_height);
+    self->max_width = max_width;
+    self->max_height = max_height;
+    modified = TRUE;
+  }
+
+  if (modified || !gst_d3d11_decoder_is_configured (self->d3d11_decoder)) {
+    GstVideoInfo info;
+    GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
+
+    if (self->bitdepth == 8) {
+      out_format = GST_VIDEO_FORMAT_NV12;
+    } else if (self->bitdepth == 10) {
+      out_format = GST_VIDEO_FORMAT_P010_10LE;
+    } else {
+      GST_WARNING_OBJECT (self, "Invalid bit-depth %d", seq_hdr->bit_depth);
+      return FALSE;
+    }
+
+    gst_video_info_set_format (&info,
+        out_format, self->max_width, self->max_height);
+
+    if (!gst_d3d11_decoder_configure (self->d3d11_decoder, GST_D3D11_CODEC_AV1,
+            decoder->input_state, &info, (gint) self->max_width,
+            (gint) self->max_height, NUM_OUTPUT_VIEW)) {
+      GST_ERROR_OBJECT (self, "Failed to create decoder");
+      return FALSE;
+    }
+
+    if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
+      GST_ERROR_OBJECT (self, "Failed to negotiate with downstream");
+      return FALSE;
+    }
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_d3d11_av1_dec_new_picture (GstAV1Decoder * decoder,
+    GstVideoCodecFrame * frame, GstAV1Picture * picture)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  GstBuffer *view_buffer;
+
+  view_buffer = gst_d3d11_decoder_get_output_view_buffer (self->d3d11_decoder,
+      GST_VIDEO_DECODER (decoder));
+  if (!view_buffer) {
+    GST_DEBUG_OBJECT (self, "No available output view buffer");
+    return FALSE;
+  }
+
+  GST_LOG_OBJECT (self, "New output view buffer %" GST_PTR_FORMAT, view_buffer);
+
+  gst_av1_picture_set_user_data (picture,
+      view_buffer, (GDestroyNotify) gst_buffer_unref);
+
+  GST_LOG_OBJECT (self, "New AV1 picture %p", picture);
+
+  return TRUE;
+}
+
+static GstAV1Picture *
+gst_d3d11_av1_dec_duplicate_picture (GstAV1Decoder * decoder,
+    GstAV1Picture * picture)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  GstBuffer *view_buffer;
+  GstAV1Picture *new_picture;
+
+  view_buffer = (GstBuffer *) gst_av1_picture_get_user_data (picture);
+
+  if (!view_buffer) {
+    GST_ERROR_OBJECT (self, "Parent picture does not have output view buffer");
+    return NULL;
+  }
+
+  new_picture = gst_av1_picture_new ();
+
+  GST_LOG_OBJECT (self, "Duplicate output with buffer %" GST_PTR_FORMAT,
+      view_buffer);
+
+  gst_av1_picture_set_user_data (new_picture,
+      gst_buffer_ref (view_buffer), (GDestroyNotify) gst_buffer_unref);
+
+  return new_picture;
+}
+
+static gboolean
+gst_d3d11_av1_dec_get_bitstream_buffer (GstD3D11AV1Dec * self)
+{
+  GST_TRACE_OBJECT (self, "Getting bitstream buffer");
+  if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_BITSTREAM, &self->remaining_buffer_size,
+          (gpointer *) & self->bitstream_buffer_data)) {
+    GST_ERROR_OBJECT (self, "Faild to get bitstream buffer");
+    return FALSE;
+  }
+
+  GST_TRACE_OBJECT (self, "Got bitstream buffer %p with size %d",
+      self->bitstream_buffer_data, self->remaining_buffer_size);
+  self->written_buffer_size = 0;
+
+  return TRUE;
+}
+
+static ID3D11VideoDecoderOutputView *
+gst_d3d11_av1_dec_get_output_view_from_picture (GstD3D11AV1Dec * self,
+    GstAV1Picture * picture, guint8 * view_id)
+{
+  GstBuffer *view_buffer;
+  ID3D11VideoDecoderOutputView *view;
+
+  view_buffer = (GstBuffer *) gst_av1_picture_get_user_data (picture);
+  if (!view_buffer) {
+    GST_DEBUG_OBJECT (self, "current picture does not have output view buffer");
+    return NULL;
+  }
+
+  view =
+      gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
+      view_buffer, view_id);
+  if (!view) {
+    GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
+    return NULL;
+  }
+
+  return view;
+}
+
+static gboolean
+gst_d3d11_av1_dec_start_picture (GstAV1Decoder * decoder,
+    GstAV1Picture * picture, GstAV1Dpb * dpb)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  const GstAV1SequenceHeaderOBU *seq_hdr = &self->seq_hdr;
+  const GstAV1FrameHeaderOBU *frame_hdr = &picture->frame_hdr;
+  ID3D11VideoDecoderOutputView *view;
+  GST_DXVA_PicParams_AV1 *pic_params = &self->pic_params;
+  guint8 view_id = 0xff;
+  guint i, j;
+
+  view = gst_d3d11_av1_dec_get_output_view_from_picture (self, picture,
+      &view_id);
+  if (!view) {
+    GST_ERROR_OBJECT (self, "current picture does not have output view handle");
+    return FALSE;
+  }
+
+  GST_TRACE_OBJECT (self, "Begin frame");
+
+  if (!gst_d3d11_decoder_begin_frame (self->d3d11_decoder, view, 0, NULL)) {
+    GST_ERROR_OBJECT (self, "Failed to begin frame");
+    return FALSE;
+  }
+
+  memset (pic_params, 0, sizeof (GST_DXVA_PicParams_AV1));
+
+  pic_params->width = frame_hdr->frame_width;
+  pic_params->height = frame_hdr->frame_height;
+
+  pic_params->max_width = seq_hdr->max_frame_width_minus_1 + 1;
+  pic_params->max_height = seq_hdr->max_frame_height_minus_1 + 1;
+
+  pic_params->CurrPicTextureIndex = view_id;
+  pic_params->superres_denom = frame_hdr->superres_denom;
+  pic_params->bitdepth = seq_hdr->bit_depth;
+  pic_params->seq_profile = seq_hdr->seq_profile;
+
+  /* TILES */
+  pic_params->tiles.cols = frame_hdr->tile_info.tile_cols;
+  pic_params->tiles.rows = frame_hdr->tile_info.tile_rows;
+  pic_params->tiles.context_update_id =
+      frame_hdr->tile_info.context_update_tile_id;
+
+  for (i = 0; i < pic_params->tiles.cols; i++) {
+    pic_params->tiles.widths[i] =
+        frame_hdr->tile_info.width_in_sbs_minus_1[i] + 1;
+  }
+
+  for (i = 0; i < pic_params->tiles.rows; i++) {
+    pic_params->tiles.heights[i] =
+        frame_hdr->tile_info.height_in_sbs_minus_1[i] + 1;
+  }
+
+  /* CODING TOOLS */
+  pic_params->coding.use_128x128_superblock = seq_hdr->use_128x128_superblock;
+  pic_params->coding.intra_edge_filter = seq_hdr->enable_filter_intra;
+  pic_params->coding.interintra_compound = seq_hdr->enable_interintra_compound;
+  pic_params->coding.masked_compound = seq_hdr->enable_masked_compound;
+  pic_params->coding.warped_motion = frame_hdr->allow_warped_motion;
+  pic_params->coding.dual_filter = seq_hdr->enable_dual_filter;
+  pic_params->coding.jnt_comp = seq_hdr->enable_jnt_comp;
+  pic_params->coding.screen_content_tools =
+      frame_hdr->allow_screen_content_tools;
+  pic_params->coding.integer_mv = frame_hdr->force_integer_mv;
+  pic_params->coding.cdef = seq_hdr->enable_cdef;
+  pic_params->coding.restoration = seq_hdr->enable_restoration;
+  pic_params->coding.film_grain = seq_hdr->film_grain_params_present;
+  pic_params->coding.intrabc = frame_hdr->allow_intrabc;
+  pic_params->coding.high_precision_mv = frame_hdr->allow_high_precision_mv;
+  pic_params->coding.switchable_motion_mode =
+      frame_hdr->is_motion_mode_switchable;
+  pic_params->coding.filter_intra = seq_hdr->enable_filter_intra;
+  pic_params->coding.disable_frame_end_update_cdf =
+      frame_hdr->disable_frame_end_update_cdf;
+  pic_params->coding.disable_cdf_update = frame_hdr->disable_cdf_update;
+  pic_params->coding.reference_mode = frame_hdr->reference_select;
+  pic_params->coding.skip_mode = frame_hdr->skip_mode_present;
+  pic_params->coding.reduced_tx_set = frame_hdr->reduced_tx_set;
+  pic_params->coding.superres = frame_hdr->use_superres;
+  pic_params->coding.tx_mode = frame_hdr->tx_mode;
+  pic_params->coding.use_ref_frame_mvs = frame_hdr->use_ref_frame_mvs;
+  pic_params->coding.enable_ref_frame_mvs = seq_hdr->enable_ref_frame_mvs;
+  pic_params->coding.reference_frame_update = 1;
+
+  /* FORMAT */
+  pic_params->format.frame_type = frame_hdr->frame_type;
+  pic_params->format.show_frame = frame_hdr->show_frame;
+  pic_params->format.showable_frame = frame_hdr->showable_frame;
+  pic_params->format.subsampling_x = seq_hdr->color_config.subsampling_x;
+  pic_params->format.subsampling_y = seq_hdr->color_config.subsampling_y;
+  pic_params->format.mono_chrome = seq_hdr->color_config.mono_chrome;
+
+  /* REFERENCES */
+  pic_params->primary_ref_frame = frame_hdr->primary_ref_frame;
+  pic_params->order_hint = frame_hdr->order_hint;
+  if (seq_hdr->enable_order_hint) {
+    pic_params->order_hint_bits = seq_hdr->order_hint_bits_minus_1 + 1;
+  } else {
+    pic_params->order_hint_bits = 0;
+  }
+
+  for (i = 0; i < GST_AV1_REFS_PER_FRAME; i++) {
+    if (dpb->pic_list[i]) {
+      GstAV1Picture *other_pic = dpb->pic_list[i];
+      const GstAV1GlobalMotionParams *gmp = &frame_hdr->global_motion_params;
+
+      pic_params->frame_refs[i].width = other_pic->frame_hdr.frame_width;
+      pic_params->frame_refs[i].height = other_pic->frame_hdr.frame_height;
+      for (j = 0; j < 6; j++) {
+        pic_params->frame_refs[i].wmmat[j] =
+            gmp->gm_params[GST_AV1_REF_LAST_FRAME + i][j];
+      }
+      pic_params->frame_refs[i].wminvalid =
+          (gmp->gm_type[GST_AV1_REF_LAST_FRAME + i] ==
+          GST_AV1_WARP_MODEL_IDENTITY);
+      pic_params->frame_refs[i].wmtype =
+          gmp->gm_type[GST_AV1_REF_LAST_FRAME + i];
+      pic_params->frame_refs[i].Index = frame_hdr->ref_frame_idx[i];
+    } else {
+      pic_params->frame_refs[i].Index = 0xff;
+    }
+  }
+
+  for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++) {
+    if (dpb->pic_list[i]) {
+      GstAV1Picture *other_pic = dpb->pic_list[i];
+      ID3D11VideoDecoderOutputView *other_view;
+      guint8 other_view_id = 0xff;
+
+      other_view = gst_d3d11_av1_dec_get_output_view_from_picture (self,
+          other_pic, &other_view_id);
+      if (!other_view) {
+        GST_ERROR_OBJECT (self,
+            "current picture does not have output view handle");
+        return FALSE;
+      }
+
+      pic_params->RefFrameMapTextureIndex[i] = other_view_id;
+    } else {
+      pic_params->RefFrameMapTextureIndex[i] = 0xff;
+    }
+  }
+
+  /* LOOP FILTER PARAMS */
+  pic_params->loop_filter.filter_level[0] =
+      frame_hdr->loop_filter_params.loop_filter_level[0];
+  pic_params->loop_filter.filter_level[1] =
+      frame_hdr->loop_filter_params.loop_filter_level[1];
+  pic_params->loop_filter.filter_level_u =
+      frame_hdr->loop_filter_params.loop_filter_level[2];
+  pic_params->loop_filter.filter_level_v =
+      frame_hdr->loop_filter_params.loop_filter_level[3];
+  pic_params->loop_filter.sharpness_level =
+      frame_hdr->loop_filter_params.loop_filter_sharpness;
+  pic_params->loop_filter.mode_ref_delta_enabled =
+      frame_hdr->loop_filter_params.loop_filter_delta_enabled;
+  pic_params->loop_filter.mode_ref_delta_update =
+      frame_hdr->loop_filter_params.loop_filter_delta_update;
+  pic_params->loop_filter.delta_lf_multi =
+      frame_hdr->loop_filter_params.delta_lf_multi;
+  pic_params->loop_filter.delta_lf_present =
+      frame_hdr->loop_filter_params.delta_lf_present;
+
+  for (i = 0; i < GST_AV1_TOTAL_REFS_PER_FRAME; i++) {
+    pic_params->loop_filter.ref_deltas[i] =
+        frame_hdr->loop_filter_params.loop_filter_ref_deltas[i];
+  }
+
+  for (i = 0; i < 2; i++) {
+    pic_params->loop_filter.mode_deltas[i] =
+        frame_hdr->loop_filter_params.loop_filter_mode_deltas[i];
+  }
+
+  pic_params->loop_filter.delta_lf_res =
+      frame_hdr->loop_filter_params.delta_lf_res;
+
+  for (i = 0; i < GST_AV1_MAX_NUM_PLANES; i++) {
+    pic_params->loop_filter.frame_restoration_type[i] =
+        frame_hdr->loop_restoration_params.frame_restoration_type[i];
+  }
+
+  if (frame_hdr->loop_restoration_params.uses_lr) {
+    pic_params->loop_filter.log2_restoration_unit_size[0] =
+        (6 + frame_hdr->loop_restoration_params.lr_unit_shift);
+    pic_params->loop_filter.log2_restoration_unit_size[1] =
+        pic_params->loop_filter.log2_restoration_unit_size[2] =
+        (6 + frame_hdr->loop_restoration_params.lr_unit_shift -
+        frame_hdr->loop_restoration_params.lr_uv_shift);
+  } else {
+    pic_params->loop_filter.log2_restoration_unit_size[0] =
+        pic_params->loop_filter.log2_restoration_unit_size[1] =
+        pic_params->loop_filter.log2_restoration_unit_size[2] = 8;
+  }
+
+  /* QUANTIZATION */
+  pic_params->quantization.delta_q_present =
+      frame_hdr->quantization_params.delta_q_present;
+  pic_params->quantization.delta_q_res =
+      frame_hdr->quantization_params.delta_q_res;
+  pic_params->quantization.base_qindex =
+      frame_hdr->quantization_params.base_q_idx;
+  pic_params->quantization.y_dc_delta_q =
+      frame_hdr->quantization_params.delta_q_y_dc;
+  pic_params->quantization.u_dc_delta_q =
+      frame_hdr->quantization_params.delta_q_u_dc;
+  pic_params->quantization.v_dc_delta_q =
+      frame_hdr->quantization_params.delta_q_v_dc;
+  pic_params->quantization.u_ac_delta_q =
+      frame_hdr->quantization_params.delta_q_u_ac;
+  pic_params->quantization.v_ac_delta_q =
+      frame_hdr->quantization_params.delta_q_v_ac;
+  if (frame_hdr->quantization_params.using_qmatrix) {
+    pic_params->quantization.qm_y = frame_hdr->quantization_params.qm_y;
+    pic_params->quantization.qm_u = frame_hdr->quantization_params.qm_u;
+    pic_params->quantization.qm_v = frame_hdr->quantization_params.qm_v;
+  } else {
+    pic_params->quantization.qm_y = 0xff;
+    pic_params->quantization.qm_u = 0xff;
+    pic_params->quantization.qm_v = 0xff;
+  }
+
+  /* Cdef params */
+  pic_params->cdef.damping = frame_hdr->cdef_params.cdef_damping - 3;
+  pic_params->cdef.bits = frame_hdr->cdef_params.cdef_bits;
+
+  for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
+    pic_params->cdef.y_strengths[i].primary =
+        frame_hdr->cdef_params.cdef_y_pri_strength[i];
+    pic_params->cdef.y_strengths[i].secondary =
+        frame_hdr->cdef_params.cdef_y_sec_strength[i];
+
+    pic_params->cdef.uv_strengths[i].primary =
+        frame_hdr->cdef_params.cdef_uv_pri_strength[i];
+    pic_params->cdef.uv_strengths[i].secondary =
+        frame_hdr->cdef_params.cdef_uv_sec_strength[i];
+  }
+
+  pic_params->interp_filter = frame_hdr->interpolation_filter;
+
+  /* SEGMENTATION */
+  pic_params->segmentation.enabled =
+      frame_hdr->segmentation_params.segmentation_enabled;
+  pic_params->segmentation.update_map =
+      frame_hdr->segmentation_params.segmentation_update_map;
+  pic_params->segmentation.update_data =
+      frame_hdr->segmentation_params.segmentation_update_data;
+  pic_params->segmentation.temporal_update =
+      frame_hdr->segmentation_params.segmentation_temporal_update;
+
+  for (i = 0; i < GST_AV1_MAX_SEGMENTS; i++) {
+    for (j = 0; j < GST_AV1_SEG_LVL_MAX; j++) {
+      pic_params->segmentation.feature_mask[i].mask |=
+          (frame_hdr->segmentation_params.feature_enabled[i][j] << j);
+      pic_params->segmentation.feature_data[i][j] =
+          frame_hdr->segmentation_params.feature_data[i][j];
+    }
+  }
+
+  /* FILM GRAIN */
+  if (frame_hdr->film_grain_params.apply_grain) {
+    pic_params->film_grain.apply_grain = 1;
+    pic_params->film_grain.scaling_shift_minus8 =
+        frame_hdr->film_grain_params.grain_scaling_minus_8;
+    pic_params->film_grain.chroma_scaling_from_luma =
+        frame_hdr->film_grain_params.chroma_scaling_from_luma;
+    pic_params->film_grain.ar_coeff_lag =
+        frame_hdr->film_grain_params.ar_coeff_lag;
+    pic_params->film_grain.ar_coeff_shift_minus6 =
+        frame_hdr->film_grain_params.ar_coeff_shift_minus_6;
+    pic_params->film_grain.grain_scale_shift =
+        frame_hdr->film_grain_params.grain_scale_shift;
+    pic_params->film_grain.overlap_flag =
+        frame_hdr->film_grain_params.overlap_flag;
+    pic_params->film_grain.clip_to_restricted_range =
+        frame_hdr->film_grain_params.clip_to_restricted_range;
+    pic_params->film_grain.matrix_coeff_is_identity =
+        (seq_hdr->color_config.matrix_coefficients == GST_AV1_MC_IDENTITY);
+    pic_params->film_grain.grain_seed = frame_hdr->film_grain_params.grain_seed;
+    for (i = 0; i < frame_hdr->film_grain_params.num_y_points && i < 14; i++) {
+      pic_params->film_grain.scaling_points_y[i][0] =
+          frame_hdr->film_grain_params.point_y_value[i];
+      pic_params->film_grain.scaling_points_y[i][1] =
+          frame_hdr->film_grain_params.point_y_scaling[i];
+    }
+    pic_params->film_grain.num_y_points =
+        frame_hdr->film_grain_params.num_y_points;
+
+    for (i = 0; i < frame_hdr->film_grain_params.num_cb_points && i < 10; i++) {
+      pic_params->film_grain.scaling_points_cb[i][0] =
+          frame_hdr->film_grain_params.point_cb_value[i];
+      pic_params->film_grain.scaling_points_cb[i][1] =
+          frame_hdr->film_grain_params.point_cb_scaling[i];
+    }
+    pic_params->film_grain.num_cb_points =
+        frame_hdr->film_grain_params.num_cb_points;
+
+    for (i = 0; i < frame_hdr->film_grain_params.num_cr_points && i < 10; i++) {
+      pic_params->film_grain.scaling_points_cr[i][0] =
+          frame_hdr->film_grain_params.point_cr_value[i];
+      pic_params->film_grain.scaling_points_cr[i][1] =
+          frame_hdr->film_grain_params.point_cr_scaling[i];
+    }
+    pic_params->film_grain.num_cr_points =
+        frame_hdr->film_grain_params.num_cr_points;
+
+    for (i = 0; i < 24; i++) {
+      pic_params->film_grain.ar_coeffs_y[i] =
+          frame_hdr->film_grain_params.ar_coeffs_y_plus_128[i];
+    }
+
+    for (i = 0; i < 25; i++) {
+      pic_params->film_grain.ar_coeffs_cb[i] =
+          frame_hdr->film_grain_params.ar_coeffs_cb_plus_128[i];
+      pic_params->film_grain.ar_coeffs_cr[i] =
+          frame_hdr->film_grain_params.ar_coeffs_cr_plus_128[i];
+    }
+
+    pic_params->film_grain.cb_mult = frame_hdr->film_grain_params.cb_mult;
+    pic_params->film_grain.cb_luma_mult =
+        frame_hdr->film_grain_params.cb_luma_mult;
+    pic_params->film_grain.cr_mult = frame_hdr->film_grain_params.cr_mult;
+    pic_params->film_grain.cr_luma_mult =
+        frame_hdr->film_grain_params.cr_luma_mult;
+    pic_params->film_grain.cb_offset = frame_hdr->film_grain_params.cb_offset;
+    pic_params->film_grain.cr_offset = frame_hdr->film_grain_params.cr_offset;
+  }
+
+  return gst_d3d11_av1_dec_get_bitstream_buffer (self);
+}
+
+static gboolean
+gst_d3d11_av1_dec_decode_tile (GstAV1Decoder * decoder,
+    GstAV1Picture * picture, GstAV1Tile * tile)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  GstAV1TileGroupOBU *tile_group = &tile->tile_group;
+  ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
+  guint i;
+
+  view = gst_d3d11_av1_dec_get_output_view_from_picture (self, picture,
+      &view_id);
+  if (!view) {
+    GST_ERROR_OBJECT (self, "current picture does not have output view handle");
+    return FALSE;
+  }
+
+  if (tile_group->num_tiles > self->tile_list->len)
+    g_array_set_size (self->tile_list, tile_group->num_tiles);
+
+  g_assert (tile_group->tg_end < self->tile_list->len);
+
+  if (tile->obu.obu_size > self->remaining_buffer_size) {
+    GST_ERROR_OBJECT (self, "Too large OBU size");
+    return FALSE;
+  }
+
+  GST_LOG_OBJECT (self, "Decode tile, tile count %d (start: %d - end: %d)",
+      tile_group->num_tiles, tile_group->tg_start, tile_group->tg_end);
+
+  for (i = tile_group->tg_start; i <= tile_group->tg_end; i++) {
+    GST_DXVA_Tile_AV1 *dxva_tile =
+        &g_array_index (self->tile_list, GST_DXVA_Tile_AV1, i);
+
+    GST_TRACE_OBJECT (self,
+        "Written size %d, Tile offset %d, size %d, row %d, col %d",
+        self->written_buffer_size,
+        tile_group->entry[i].tile_offset, tile_group->entry[i].tile_size,
+        tile_group->entry[i].tile_row, tile_group->entry[i].tile_col);
+
+    dxva_tile->DataOffset =
+        self->written_buffer_size + tile_group->entry[i].tile_offset;
+    dxva_tile->DataSize = tile_group->entry[i].tile_size;
+    dxva_tile->row = tile_group->entry[i].tile_row;
+    dxva_tile->column = tile_group->entry[i].tile_col;
+    /* TODO: used for tile list OBU */
+    dxva_tile->anchor_frame = 0xff;
+  }
+
+  GST_TRACE_OBJECT (self, "OBU size %d", tile->obu.obu_size);
+
+  memcpy (self->bitstream_buffer_data, tile->obu.data, tile->obu.obu_size);
+  self->remaining_buffer_size -= tile->obu.obu_size;
+  self->bitstream_buffer_data += tile->obu.obu_size;
+  self->written_buffer_size += tile->obu.obu_size;
+
+  return TRUE;
+}
+
+static gboolean
+gst_d3d11_av1_dec_end_picture (GstAV1Decoder * decoder, GstAV1Picture * picture)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  guint d3d11_buffer_size;
+  gpointer d3d11_buffer;
+  guint padding;
+  D3D11_VIDEO_DECODER_BUFFER_DESC buffer_desc[3];
+  guint i;
+  guint8 *data;
+  gsize offset = 0;
+
+  GST_TRACE_OBJECT (self, "Getting picture params buffer");
+  if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS, &d3d11_buffer_size,
+          &d3d11_buffer)) {
+    GST_ERROR_OBJECT (self,
+        "Failed to get decoder buffer for picture parameters");
+    return FALSE;
+  }
+
+  if (d3d11_buffer_size < sizeof (GST_DXVA_PicParams_AV1)) {
+    GST_ERROR_OBJECT (self,
+        "Too small picture param buffer %d", d3d11_buffer_size);
+
+    gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder,
+        D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS);
+    return FALSE;
+  }
+
+  memcpy (d3d11_buffer, &self->pic_params, sizeof (GST_DXVA_PicParams_AV1));
+
+  GST_TRACE_OBJECT (self, "Release picture param decoder buffer");
+
+  if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS)) {
+    GST_ERROR_OBJECT (self, "Failed to release decoder buffer");
+    return FALSE;
+  }
+
+  GST_TRACE_OBJECT (self, "Getting slice control buffer");
+
+  if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL, &d3d11_buffer_size,
+          &d3d11_buffer)) {
+    GST_ERROR_OBJECT (self, "Couldn't get slice control buffer");
+    return FALSE;
+  }
+
+  if (d3d11_buffer_size < sizeof (GST_DXVA_Tile_AV1) * self->tile_list->len) {
+    GST_ERROR_OBJECT (self, "Too small slice control buffer %d",
+        d3d11_buffer_size);
+    gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder,
+        D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL);
+    return FALSE;
+  }
+
+  data = (guint8 *) d3d11_buffer;
+  for (i = 0; i < self->tile_list->len; i++) {
+    GST_DXVA_Tile_AV1 *dxva_tile =
+        &g_array_index (self->tile_list, GST_DXVA_Tile_AV1, i);
+
+    memcpy (data + offset, dxva_tile, sizeof (GST_DXVA_Tile_AV1));
+    offset += sizeof (GST_DXVA_Tile_AV1);
+  }
+
+  if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL)) {
+    GST_ERROR_OBJECT (self, "Failed to release slice control buffer");
+    return FALSE;
+  }
+
+  padding = MIN (GST_ROUND_UP_128 (self->written_buffer_size) -
+      self->written_buffer_size, self->remaining_buffer_size);
+  if (padding) {
+    memset (self->bitstream_buffer_data, 0, padding);
+    self->written_buffer_size += padding;
+  }
+
+  if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder,
+          D3D11_VIDEO_DECODER_BUFFER_BITSTREAM)) {
+    GST_ERROR_OBJECT (self, "Failed to release bitstream buffer");
+
+    return FALSE;
+  }
+
+  buffer_desc[0].BufferType = D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS;
+  buffer_desc[0].DataOffset = 0;
+  buffer_desc[0].DataSize = sizeof (GST_DXVA_PicParams_AV1);
+
+  buffer_desc[1].BufferType = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
+  buffer_desc[1].DataOffset = 0;
+  buffer_desc[1].DataSize = sizeof (GST_DXVA_Tile_AV1) * self->tile_list->len;
+
+  buffer_desc[2].BufferType = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
+  buffer_desc[2].DataOffset = 0;
+  buffer_desc[2].DataSize = self->written_buffer_size;
+
+  if (!gst_d3d11_decoder_submit_decoder_buffers (self->d3d11_decoder,
+          3, buffer_desc)) {
+    GST_ERROR_OBJECT (self, "Couldn't submit decoder buffers");
+    return FALSE;
+  }
+
+  if (!gst_d3d11_decoder_end_frame (self->d3d11_decoder)) {
+    GST_ERROR_OBJECT (self, "Failed to EndFrame");
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static GstFlowReturn
+gst_d3d11_av1_dec_output_picture (GstAV1Decoder * decoder,
+    GstVideoCodecFrame * frame, GstAV1Picture * picture)
+{
+  GstD3D11AV1Dec *self = GST_D3D11_AV1_DEC (decoder);
+  GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder);
+  GstBuffer *view_buffer;
+
+  GST_LOG_OBJECT (self, "Outputting picture %p, %dx%d", picture,
+      picture->frame_hdr.render_width, picture->frame_hdr.render_height);
+
+  view_buffer = (GstBuffer *) gst_av1_picture_get_user_data (picture);
+
+  if (!view_buffer) {
+    GST_ERROR_OBJECT (self, "Could not get output view");
+    goto error;
+  }
+
+  if (!gst_d3d11_decoder_process_output (self->d3d11_decoder, vdec,
+          picture->frame_hdr.render_width, picture->frame_hdr.render_height,
+          view_buffer, &frame->output_buffer)) {
+    GST_ERROR_OBJECT (self, "Failed to copy buffer");
+    goto error;
+  }
+
+  gst_av1_picture_unref (picture);
+
+  return gst_video_decoder_finish_frame (vdec, frame);
+
+error:
+  gst_av1_picture_unref (picture);
+  gst_video_decoder_drop_frame (vdec, frame);
+
+  return GST_FLOW_ERROR;
+}
+
+typedef struct
+{
+  guint width;
+  guint height;
+} GstD3D11AV1DecResolution;
+
+void
+gst_d3d11_av1_dec_register (GstPlugin * plugin, GstD3D11Device * device,
+    GstD3D11Decoder * decoder, guint rank)
+{
+  GType type;
+  gchar *type_name;
+  gchar *feature_name;
+  guint index = 0;
+  guint i;
+  GTypeInfo type_info = {
+    sizeof (GstD3D11AV1DecClass),
+    NULL,
+    NULL,
+    (GClassInitFunc) gst_d3d11_av1_dec_class_init,
+    NULL,
+    NULL,
+    sizeof (GstD3D11AV1Dec),
+    0,
+    (GInstanceInitFunc) gst_d3d11_av1_dec_init,
+  };
+  const GUID *profile_guid = NULL;
+  /* values were taken from chromium. See supported_profile_helper.cc */
+  GstD3D11AV1DecResolution resolutions_to_check[] = {
+    {4096, 2160}, {4096, 2304}, {7680, 4320}, {8192, 4320}, {8192, 8192}
+  };
+  GstCaps *sink_caps = NULL;
+  GstCaps *src_caps = NULL;
+  guint max_width = 0;
+  guint max_height = 0;
+  guint resolution;
+  gboolean have_p010 = FALSE;
+  gboolean have_gray = FALSE;
+  gboolean have_gray10 = FALSE;
+
+  if (!gst_d3d11_decoder_get_supported_decoder_profile (decoder,
+          GST_D3D11_CODEC_AV1, GST_VIDEO_FORMAT_NV12, &profile_guid)) {
+    GST_INFO_OBJECT (device, "device does not support VP8 decoding");
+    return;
+  }
+
+  have_p010 = gst_d3d11_decoder_supports_format (decoder,
+      profile_guid, DXGI_FORMAT_P010);
+  have_gray = gst_d3d11_decoder_supports_format (decoder,
+      profile_guid, DXGI_FORMAT_R8_UNORM);
+  have_gray10 = gst_d3d11_decoder_supports_format (decoder,
+      profile_guid, DXGI_FORMAT_R16_UNORM);
+
+  GST_INFO_OBJECT (device, "Decoder support P010: %d, R8: %d, R16: %d",
+      have_p010, have_gray, have_gray10);
+
+  /* TODO: add test monochrome formats */
+  for (i = 0; i < G_N_ELEMENTS (resolutions_to_check); i++) {
+    if (gst_d3d11_decoder_supports_resolution (decoder, profile_guid,
+            DXGI_FORMAT_NV12, resolutions_to_check[i].width,
+            resolutions_to_check[i].height)) {
+      max_width = resolutions_to_check[i].width;
+      max_height = resolutions_to_check[i].height;
+
+      GST_DEBUG_OBJECT (device,
+          "device support resolution %dx%d", max_width, max_height);
+    } else {
+      break;
+    }
+  }
+
+  if (max_width == 0 || max_height == 0) {
+    GST_WARNING_OBJECT (device, "Couldn't query supported resolution");
+    return;
+  }
+
+  sink_caps =
+      gst_caps_from_string ("video/x-av1, "
+      "alignment = (string) frame, profile = (string) 0");
+  src_caps = gst_caps_from_string ("video/x-raw("
+      GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "); video/x-raw");
+
+  if (have_p010) {
+    GValue format_list = G_VALUE_INIT;
+    GValue format_value = G_VALUE_INIT;
+
+    g_value_init (&format_list, GST_TYPE_LIST);
+
+    g_value_init (&format_value, G_TYPE_STRING);
+    g_value_set_string (&format_value, "NV12");
+    gst_value_list_append_and_take_value (&format_list, &format_value);
+
+    g_value_init (&format_value, G_TYPE_STRING);
+    g_value_set_string (&format_value, "P010_10LE");
+    gst_value_list_append_and_take_value (&format_list, &format_value);
+
+    gst_caps_set_value (src_caps, "format", &format_list);
+    g_value_unset (&format_list);
+  } else {
+    gst_caps_set_simple (src_caps, "format", G_TYPE_STRING, "NV12", NULL);
+  }
+
+  /* To cover both landscape and portrait, select max value */
+  resolution = MAX (max_width, max_height);
+  gst_caps_set_simple (sink_caps,
+      "width", GST_TYPE_INT_RANGE, 1, resolution,
+      "height", GST_TYPE_INT_RANGE, 1, resolution, NULL);
+  gst_caps_set_simple (src_caps,
+      "width", GST_TYPE_INT_RANGE, 1, resolution,
+      "height", GST_TYPE_INT_RANGE, 1, resolution, NULL);
+
+  type_info.class_data =
+      gst_d3d11_decoder_class_data_new (device, sink_caps, src_caps);
+
+  type_name = g_strdup ("GstD3D11AV1Dec");
+  feature_name = g_strdup ("d3d11av1dec");
+
+  while (g_type_from_name (type_name)) {
+    index++;
+    g_free (type_name);
+    g_free (feature_name);
+    type_name = g_strdup_printf ("GstD3D11AV1Device%dDec", index);
+    feature_name = g_strdup_printf ("d3d11av1device%ddec", index);
+  }
+
+  type = g_type_register_static (GST_TYPE_AV1_DECODER,
+      type_name, &type_info, (GTypeFlags) 0);
+
+  /* make lower rank than default device */
+  if (rank > 0 && index != 0)
+    rank--;
+
+  if (!gst_element_register (plugin, feature_name, rank, type))
+    GST_WARNING ("Failed to register plugin '%s'", type_name);
+
+  g_free (type_name);
+  g_free (feature_name);
+}
diff --git a/sys/d3d11/gstd3d11av1dec.h b/sys/d3d11/gstd3d11av1dec.h
new file mode 100644
index 000000000..7c5174300
--- /dev/null
+++ b/sys/d3d11/gstd3d11av1dec.h
@@ -0,0 +1,34 @@
+/* GStreamer
+ * Copyright (C) 2021 Seungha Yang <seungha@centricular.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_AV1_DEC_H__
+#define __GST_D3D11_AV1_DEC_H__
+
+#include "gstd3d11decoder.h"
+
+G_BEGIN_DECLS
+
+void  gst_d3d11_av1_dec_register (GstPlugin * plugin,
+                                  GstD3D11Device * device,
+                                  GstD3D11Decoder * decoder,
+                                  guint rank);
+
+G_END_DECLS
+
+#endif /* __GST_D3D11_AV1_DEC_H__ */
diff --git a/sys/d3d11/gstd3d11decoder.cpp b/sys/d3d11/gstd3d11decoder.cpp
index 5a8b04ab7..6a1d96aac 100644
--- a/sys/d3d11/gstd3d11decoder.cpp
+++ b/sys/d3d11/gstd3d11decoder.cpp
@@ -84,6 +84,8 @@ DEFINE_GUID (GST_GUID_D3D11_DECODER_PROFILE_MPEG2_VLD, 0xee27417f, 0x5e28,
     0x4e65, 0xbe, 0xea, 0x1d, 0x26, 0xb5, 0x08, 0xad, 0xc9);
 DEFINE_GUID (GST_GUID_D3D11_DECODER_PROFILE_MPEG2and1_VLD, 0x86695f12, 0x340e,
     0x4f04, 0x9f, 0xd3, 0x92, 0x53, 0xdd, 0x32, 0x74, 0x60);
+DEFINE_GUID (GST_GUID_D3D11_DECODER_PROFILE_AV1_VLD_PROFILE0, 0xb8be4ccb,
+    0xcf53, 0x46ba, 0x8d, 0x59, 0xd6, 0xb8, 0xa6, 0xda, 0x5d, 0x2a);
 
 static const GUID *profile_h264_list[] = {
   &GST_GUID_D3D11_DECODER_PROFILE_H264_IDCT_FGT,
@@ -116,6 +118,11 @@ static const GUID *profile_mpeg2_list[] = {
   &GST_GUID_D3D11_DECODER_PROFILE_MPEG2and1_VLD
 };
 
+static const GUID *profile_av1_list[] = {
+  &GST_GUID_D3D11_DECODER_PROFILE_AV1_VLD_PROFILE0,
+  /* TODO: add more profile */
+};
+
 enum
 {
   PROP_0,
@@ -544,6 +551,8 @@ gst_d3d11_codec_to_string (GstD3D11Codec codec)
       return "VP8";
     case GST_D3D11_CODEC_MPEG2:
       return "MPEG2";
+    case GST_D3D11_CODEC_AV1:
+      return "AV1";
     default:
       g_assert_not_reached ();
       break;
@@ -605,6 +614,10 @@ gst_d3d11_decoder_get_supported_decoder_profile (GstD3D11Decoder * decoder,
         profile_size = G_N_ELEMENTS (profile_mpeg2_list);
       }
       break;
+    case GST_D3D11_CODEC_AV1:
+      profile_list = profile_av1_list;
+      profile_size = G_N_ELEMENTS (profile_av1_list);
+      break;
     default:
       break;
   }
@@ -857,6 +870,7 @@ gst_d3d11_decoder_open (GstD3D11Decoder * self)
    * But... where it is? */
   switch (self->codec) {
     case GST_D3D11_CODEC_H265:
+    case GST_D3D11_CODEC_AV1:
       /* See directx_va_Setup() impl. in vlc */
       if (vendor != GST_D3D11_DEVICE_VENDOR_XBOX)
         alignment = 128;
@@ -922,6 +936,7 @@ gst_d3d11_decoder_open (GstD3D11Decoder * self)
       case GST_D3D11_CODEC_VP9:
       case GST_D3D11_CODEC_VP8:
       case GST_D3D11_CODEC_MPEG2:
+      case GST_D3D11_CODEC_AV1:
         if (config_list[i].ConfigBitstreamRaw == 1)
           best_config = &config_list[i];
         break;
diff --git a/sys/d3d11/gstd3d11decoder.h b/sys/d3d11/gstd3d11decoder.h
index ada136842..7d49def4b 100644
--- a/sys/d3d11/gstd3d11decoder.h
+++ b/sys/d3d11/gstd3d11decoder.h
@@ -40,6 +40,7 @@ typedef enum
   GST_D3D11_CODEC_H265,
   GST_D3D11_CODEC_VP8,
   GST_D3D11_CODEC_MPEG2,
+  GST_D3D11_CODEC_AV1,
 
   /* the last of supported codec */
   GST_D3D11_CODEC_LAST
diff --git a/sys/d3d11/meson.build b/sys/d3d11/meson.build
index 902748fb2..24f2debf8 100644
--- a/sys/d3d11/meson.build
+++ b/sys/d3d11/meson.build
@@ -17,6 +17,7 @@ d3d11_sources = [
 ]
 
 d3d11_dec_sources = [
+  'gstd3d11av1dec.cpp',
   'gstd3d11decoder.cpp',
   'gstd3d11h264dec.cpp',
   'gstd3d11vp9dec.cpp',
diff --git a/sys/d3d11/plugin.c b/sys/d3d11/plugin.c
index 18521debd..c0894283a 100644
--- a/sys/d3d11/plugin.c
+++ b/sys/d3d11/plugin.c
@@ -36,6 +36,7 @@
 #include "gstd3d11vp9dec.h"
 #include "gstd3d11vp8dec.h"
 #include "gstd3d11mpeg2dec.h"
+#include "gstd3d11av1dec.h"
 #endif
 #ifdef HAVE_DXGI_DESKTOP_DUP
 #include "gstd3d11desktopdupsrc.h"
@@ -61,6 +62,7 @@ GST_DEBUG_CATEGORY (gst_d3d11_h265_dec_debug);
 GST_DEBUG_CATEGORY (gst_d3d11_vp9_dec_debug);
 GST_DEBUG_CATEGORY (gst_d3d11_vp8_dec_debug);
 GST_DEBUG_CATEGORY (gst_d3d11_mpeg2_dec_debug);
+GST_DEBUG_CATEGORY (gst_d3d11_av1_dec_debug);
 #endif
 
 #ifdef HAVE_DXGI_DESKTOP_DUP
@@ -113,6 +115,8 @@ plugin_init (GstPlugin * plugin)
         "d3d11vp8dec", 0, "Direct3D11 VP8 Decoder");
     GST_DEBUG_CATEGORY_INIT (gst_d3d11_mpeg2_dec_debug,
         "d3d11mpeg2dec", 0, "Direct3D11 MPEG2 Decoder");
+    GST_DEBUG_CATEGORY_INIT (gst_d3d11_av1_dec_debug,
+        "d3d11av1dec", 0, "Direct3D11 AV1 Decoder");
   }
 #endif
 
@@ -167,6 +171,8 @@ plugin_init (GstPlugin * plugin)
             GST_RANK_SECONDARY);
         gst_d3d11_mpeg2_dec_register (plugin, device, decoder,
             GST_RANK_SECONDARY);
+        gst_d3d11_av1_dec_register (plugin, device, decoder,
+            GST_RANK_SECONDARY);
       }
 
     done: