libs: decoder: AV1: Add the av1 decoder support.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/191>

6 files changed, 1362 insertions, 0 deletions

diff --git a/gst-libs/gst/vaapi/gstvaapidecoder_av1.c b/gst-libs/gst/vaapi/gstvaapidecoder_av1.c
new file mode 100644
index 00000000..5d5610c7
--- /dev/null
+++ b/gst-libs/gst/vaapi/gstvaapidecoder_av1.c
@@ -0,0 +1,1290 @@
+/*
+ *  gstvaapidecoder_av1.c - AV1 decoder
+ *
+ *  Copyright (C) 2019-2020 Intel Corporation
+ *    Author: Junyan He <junyan.he@intel.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public License
+ *  as published by the Free Software Foundation; either version 2.1
+ *  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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+/**
+ * SECTION:gstvaapidecoder_av1
+ * @short_description: AV1 decoder
+ */
+
+#include "sysdeps.h"
+#include <gst/codecparsers/gstav1parser.h>
+#include "gstvaapidecoder_av1.h"
+#include "gstvaapidecoder_objects.h"
+#include "gstvaapidecoder_priv.h"
+#include "gstvaapidisplay_priv.h"
+
+#include "gstvaapicompat.h"
+
+#define DEBUG 1
+#include "gstvaapidebug.h"
+
+#define GST_VAAPI_DECODER_AV1_CAST(decoder) ((GstVaapiDecoderAV1 *)(decoder))
+
+typedef struct _GstVaapiDecoderAV1Private GstVaapiDecoderAV1Private;
+typedef struct _GstVaapiDecoderAV1Class GstVaapiDecoderAV1Class;
+typedef struct _GstVaapiPictureAV1 GstVaapiPictureAV1;
+
+struct _GstVaapiDecoderAV1Private
+{
+  GstVaapiProfile profile;
+  guint width;
+  guint height;
+  gboolean reset_context;
+  GstVaapiPictureAV1 *current_picture;
+  gboolean annex_b;
+  GstAV1Parser *parser;
+  GstAV1SequenceHeaderOBU *seq_header;
+  GstVaapiPictureAV1 *ref_frames[GST_AV1_NUM_REF_FRAMES];
+};
+
+/**
+ * GstVaapiDecoderAV1:
+ *
+ * A decoder based on AV1.
+ */
+struct _GstVaapiDecoderAV1
+{
+  /*< private > */
+  GstVaapiDecoder parent_instance;
+  GstVaapiDecoderAV1Private priv;
+};
+
+/**
+ * GstVaapiDecoderAV1Class:
+ *
+ * A decoder class based on AV1.
+ */
+struct _GstVaapiDecoderAV1Class
+{
+  /*< private > */
+  GstVaapiDecoderClass parent_class;
+};
+
+G_DEFINE_TYPE (GstVaapiDecoderAV1, gst_vaapi_decoder_av1,
+    GST_TYPE_VAAPI_DECODER);
+
+/* ------------------------------------------------------------------------- */
+/* --- AV1 Parser Info                                                   --- */
+/* ------------------------------------------------------------------------- */
+typedef struct _GstVaapiParserInfoAV1 GstVaapiParserInfoAV1;
+struct _GstVaapiParserInfoAV1
+{
+  GstVaapiMiniObject parent_instance;
+  GstAV1OBU obu;
+  union
+  {
+    GstAV1SequenceHeaderOBU seq_header;
+    GstAV1MetadataOBU metadata;
+    GstAV1FrameHeaderOBU frame_header;
+    GstAV1TileListOBU tile_list;
+    GstAV1TileGroupOBU tile_group;
+    GstAV1FrameOBU frame;
+  };
+  /* The offset between input data and real OBU data */
+  gint data_offset;
+};
+
+static void
+parser_info_av1_finalize (GstVaapiParserInfoAV1 * pi)
+{
+}
+
+static inline const GstVaapiMiniObjectClass *
+parser_info_av1_class (void)
+{
+  static const GstVaapiMiniObjectClass GstVaapiParserInfoAV1Class = {
+    .size = sizeof (GstVaapiParserInfoAV1),
+    .finalize = (GDestroyNotify) parser_info_av1_finalize
+  };
+  return &GstVaapiParserInfoAV1Class;
+}
+
+static inline GstVaapiParserInfoAV1 *
+parser_info_av1_new (GstAV1OBU * obu)
+{
+  GstVaapiParserInfoAV1 *pi = (GstVaapiParserInfoAV1 *)
+      gst_vaapi_mini_object_new (parser_info_av1_class ());
+
+  if (pi)
+    pi->obu = *obu;
+
+  return pi;
+}
+
+/* ------------------------------------------------------------------------- */
+/* --- AV1 Picture                                                       --- */
+/* ------------------------------------------------------------------------- */
+struct _GstVaapiPictureAV1
+{
+  GstVaapiPicture base;
+  /* When apply_grain enabled, recon proxy is different from the display
+     proxy, otherwise the same. */
+  GstVaapiSurfaceProxy *recon_proxy;
+  GstAV1FrameHeaderOBU frame_header;
+  gboolean cloned;
+};
+
+GST_VAAPI_CODEC_DEFINE_TYPE (GstVaapiPictureAV1, gst_vaapi_picture_av1);
+
+void
+gst_vaapi_picture_av1_destroy (GstVaapiPictureAV1 * picture)
+{
+  if (picture->recon_proxy) {
+    gst_vaapi_surface_proxy_unref (picture->recon_proxy);
+    picture->recon_proxy = NULL;
+  }
+  gst_vaapi_picture_destroy (GST_VAAPI_PICTURE (picture));
+}
+
+gboolean
+gst_vaapi_picture_av1_create (GstVaapiPictureAV1 * picture,
+    const GstVaapiCodecObjectConstructorArgs * args)
+{
+  if (!gst_vaapi_picture_create (GST_VAAPI_PICTURE (picture), args))
+    return FALSE;
+
+  picture->recon_proxy = gst_vaapi_surface_proxy_ref (picture->base.proxy);
+  g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE_ID (picture->recon_proxy) ==
+      picture->base.surface_id);
+
+  return TRUE;
+}
+
+static inline GstVaapiPictureAV1 *
+gst_vaapi_picture_av1_new (GstVaapiDecoderAV1 * decoder)
+{
+  GstVaapiPictureAV1 *picture;
+
+  picture = (GstVaapiPictureAV1 *)
+      gst_vaapi_codec_object_new (&GstVaapiPictureAV1Class,
+      GST_VAAPI_CODEC_BASE (decoder), NULL,
+      sizeof (VADecPictureParameterBufferAV1), NULL, 0, 0);
+
+  if (picture)
+    picture->cloned = FALSE;
+
+  return picture;
+}
+
+static const gchar *
+av1_obu_name (GstAV1OBUType type)
+{
+  switch (type) {
+    case GST_AV1_OBU_SEQUENCE_HEADER:
+      return "sequence header";
+    case GST_AV1_OBU_TEMPORAL_DELIMITER:
+      return "temporal delimiter";
+    case GST_AV1_OBU_FRAME_HEADER:
+      return "frame header";
+    case GST_AV1_OBU_TILE_GROUP:
+      return "tile group";
+    case GST_AV1_OBU_METADATA:
+      return "metadata";
+    case GST_AV1_OBU_FRAME:
+      return "frame";
+    case GST_AV1_OBU_REDUNDANT_FRAME_HEADER:
+      return "redundant frame header";
+    case GST_AV1_OBU_TILE_LIST:
+      return "tile list";
+    case GST_AV1_OBU_PADDING:
+      return "padding";
+    default:
+      return "unknown";
+  }
+
+  return NULL;
+}
+
+static GstVaapiChromaType
+av1_get_chroma_type (GstVaapiProfile profile,
+    GstAV1SequenceHeaderOBU * seq_header)
+{
+  /* 6.4.1:
+     seq_profile  Bit depth  Monochrome support  Chroma subsampling
+     0            8 or 10    Yes                 YUV 4:2:0
+     1            8 or 10    No                  YUV 4:4:4
+     2            8 or 10    Yes                 YUV 4:2:2
+     2            12         Yes                 YUV 4:2:0,YUV 4:2:2,YUV 4:4:4
+   */
+
+  /* TODO: consider Monochrome case. Just return 4:2:0 for Monochrome now. */
+  switch (profile) {
+    case GST_VAAPI_PROFILE_AV1_0:
+      if (seq_header->bit_depth == 8) {
+        return GST_VAAPI_CHROMA_TYPE_YUV420;
+      } else if (seq_header->bit_depth == 10) {
+        return GST_VAAPI_CHROMA_TYPE_YUV420_10BPP;
+      }
+      break;
+    case GST_VAAPI_PROFILE_AV1_1:
+      if (seq_header->bit_depth == 8) {
+        return GST_VAAPI_CHROMA_TYPE_YUV444;
+      } else if (seq_header->bit_depth == 10) {
+        return GST_VAAPI_CHROMA_TYPE_YUV444_10BPP;
+      }
+      break;
+    default:
+      break;
+  }
+
+  GST_WARNING ("can not decide chrome type.");
+  return 0;
+}
+
+static GstVaapiProfile
+av1_get_profile (guint profile_idc)
+{
+  GstVaapiProfile profile;
+
+  switch (profile_idc) {
+    case GST_AV1_PROFILE_0:
+      profile = GST_VAAPI_PROFILE_AV1_0;
+      break;
+    case GST_AV1_PROFILE_1:
+      profile = GST_VAAPI_PROFILE_AV1_1;
+      break;
+    default:
+      GST_INFO ("unsupported av1 profile_idc value %d", profile_idc);
+      profile = GST_VAAPI_PROFILE_UNKNOWN;
+      break;
+  }
+  return profile;
+}
+
+static GstVaapiDecoderStatus
+av1_decode_seqeunce (GstVaapiDecoderAV1 * decoder, GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderAV1Private *const priv = &decoder->priv;
+  GstVaapiProfile profile;
+  GstVaapiParserInfoAV1 *const pi = unit->parsed_info;
+
+  profile = av1_get_profile (pi->seq_header.seq_profile);
+  if (profile == GST_VAAPI_PROFILE_UNKNOWN)
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
+
+  if (!gst_vaapi_display_has_decoder (GST_VAAPI_DECODER_DISPLAY (decoder),
+          profile, GST_VAAPI_ENTRYPOINT_VLD)) {
+    GST_WARNING ("not supported av1 profile %s",
+        gst_vaapi_profile_get_va_name (profile));
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
+  }
+
+  if (profile != priv->profile) {
+    GST_DEBUG ("new av1 profile %s", gst_vaapi_profile_get_va_name (profile));
+    /* We delay the context creation to when we know the frame resolution */
+    priv->reset_context = TRUE;
+    priv->profile = profile;
+  }
+
+  /* update the sequence */
+  if (priv->seq_header)
+    g_slice_free (GstAV1SequenceHeaderOBU, priv->seq_header);
+  priv->seq_header = g_slice_dup (GstAV1SequenceHeaderOBU, &pi->seq_header);
+
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static GstVaapiDecoderStatus
+av1_decoder_ensure_context (GstVaapiDecoderAV1 * decoder)
+{
+  GstVaapiDecoderAV1Private *const priv = &decoder->priv;
+  GstVaapiContextInfo info;
+
+  if (priv->reset_context) {
+    if (priv->current_picture)
+      gst_vaapi_picture_replace (&priv->current_picture, NULL);
+
+    info.profile = priv->profile;
+    info.entrypoint = GST_VAAPI_ENTRYPOINT_VLD;
+    info.width = priv->width;
+    info.height = priv->height;
+    info.chroma_type = av1_get_chroma_type (info.profile, priv->seq_header);
+    if (!info.chroma_type)
+      return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
+
+    info.ref_frames = GST_AV1_NUM_REF_FRAMES + 2;
+
+    priv->reset_context = FALSE;
+    if (!gst_vaapi_decoder_ensure_context (GST_VAAPI_DECODER (decoder), &info)) {
+      GST_WARNING ("can not make av1 decoder context with profile %s,"
+          " width %d, height %d", gst_vaapi_profile_get_va_name (info.profile),
+          info.width, info.height);
+      return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+    }
+  }
+
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static void
+av1_fill_segment_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  guint i, j;
+  uint8_t feature_mask;
+
+#define COPY_SEG_FIELD(FP, FS) \
+    pic_param->seg_info.segment_info_fields.bits.FP = \
+        (frame_header)->segmentation_params.FS
+
+  COPY_SEG_FIELD (enabled, segmentation_enabled);
+  COPY_SEG_FIELD (update_map, segmentation_update_map);
+  COPY_SEG_FIELD (temporal_update, segmentation_temporal_update);
+  COPY_SEG_FIELD (update_data, segmentation_update_data);
+  for (i = 0; i < GST_AV1_MAX_SEGMENTS; i++)
+    for (j = 0; j < GST_AV1_SEG_LVL_MAX; j++)
+      pic_param->seg_info.feature_data[i][j] =
+          frame_header->segmentation_params.feature_data[i][j];
+
+  for (i = 0; i < GST_AV1_MAX_SEGMENTS; i++) {
+    feature_mask = 0;
+    for (j = 0; j < GST_AV1_SEG_LVL_MAX; j++) {
+      if (frame_header->segmentation_params.feature_enabled[i][j])
+        feature_mask |= 1 << j;
+    }
+    pic_param->seg_info.feature_mask[i] = feature_mask;
+  }
+#undef COPY_SEG_FIELD
+}
+
+static void
+av1_fill_film_grain_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  guint i;
+
+  if (!frame_header->film_grain_params.apply_grain)
+    return;
+
+#define COPY_FILM_GRAIN_FIELD(FP) \
+    pic_param->SUB_FIELD.FP = (frame_header)->film_grain_params.FP
+#define SUB_FIELD film_grain_info.film_grain_info_fields.bits
+
+  COPY_FILM_GRAIN_FIELD (apply_grain);
+  COPY_FILM_GRAIN_FIELD (chroma_scaling_from_luma);
+  COPY_FILM_GRAIN_FIELD (grain_scaling_minus_8);
+  COPY_FILM_GRAIN_FIELD (ar_coeff_lag);
+  COPY_FILM_GRAIN_FIELD (ar_coeff_shift_minus_6);
+  COPY_FILM_GRAIN_FIELD (grain_scale_shift);
+  COPY_FILM_GRAIN_FIELD (overlap_flag);
+  COPY_FILM_GRAIN_FIELD (clip_to_restricted_range);
+#undef SUB_FIELD
+
+  pic_param->film_grain_info.grain_seed =
+      frame_header->film_grain_params.grain_seed;
+
+  pic_param->film_grain_info.num_y_points =
+      frame_header->film_grain_params.num_y_points;
+  for (i = 0; i < frame_header->film_grain_params.num_y_points; i++) {
+    pic_param->film_grain_info.point_y_value[i] =
+        frame_header->film_grain_params.point_y_value[i];
+    pic_param->film_grain_info.point_y_scaling[i] =
+        frame_header->film_grain_params.point_y_scaling[i];
+  }
+
+  pic_param->film_grain_info.num_cb_points =
+      frame_header->film_grain_params.num_cb_points;
+  for (i = 0; i < frame_header->film_grain_params.num_cb_points; i++) {
+    pic_param->film_grain_info.point_cb_value[i] =
+        frame_header->film_grain_params.point_cb_value[i];
+    pic_param->film_grain_info.point_cb_scaling[i] =
+        frame_header->film_grain_params.point_cb_scaling[i];
+  }
+
+  pic_param->film_grain_info.num_cr_points =
+      frame_header->film_grain_params.num_cr_points;
+  for (i = 0; i < frame_header->film_grain_params.num_cr_points; i++) {
+    pic_param->film_grain_info.point_cr_value[i] =
+        frame_header->film_grain_params.point_cr_value[i];
+    pic_param->film_grain_info.point_cr_scaling[i] =
+        frame_header->film_grain_params.point_cr_scaling[i];
+  }
+
+
+  if (pic_param->film_grain_info.num_y_points) {
+    for (i = 0; i < 24; i++) {
+      pic_param->film_grain_info.ar_coeffs_y[i] =
+          frame_header->film_grain_params.ar_coeffs_y_plus_128[i] - 128;
+    }
+  }
+  if (frame_header->film_grain_params.chroma_scaling_from_luma
+      || pic_param->film_grain_info.num_cb_points) {
+    for (i = 0; i < GST_AV1_MAX_NUM_POS_LUMA; i++) {
+      pic_param->film_grain_info.ar_coeffs_cb[i] =
+          frame_header->film_grain_params.ar_coeffs_cb_plus_128[i] - 128;
+    }
+  }
+  if (frame_header->film_grain_params.chroma_scaling_from_luma
+      || pic_param->film_grain_info.num_cr_points) {
+    for (i = 0; i < GST_AV1_MAX_NUM_POS_LUMA; i++) {
+      pic_param->film_grain_info.ar_coeffs_cr[i] =
+          frame_header->film_grain_params.ar_coeffs_cr_plus_128[i] - 128;
+    }
+  }
+#define SUB_FIELD film_grain_info
+  COPY_FILM_GRAIN_FIELD (cb_mult);
+  COPY_FILM_GRAIN_FIELD (cb_luma_mult);
+  COPY_FILM_GRAIN_FIELD (cb_offset);
+  COPY_FILM_GRAIN_FIELD (cr_mult);
+  COPY_FILM_GRAIN_FIELD (cr_luma_mult);
+  COPY_FILM_GRAIN_FIELD (cr_offset);
+#undef SUB_FIELD
+#undef COPY_FILM_GRAIN_FIELD
+}
+
+static void
+av1_fill_loop_filter_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  guint i;
+
+  pic_param->superres_scale_denominator = frame_header->superres_denom;
+  pic_param->interp_filter = frame_header->interpolation_filter;
+  pic_param->filter_level[0] =
+      frame_header->loop_filter_params.loop_filter_level[0];
+  pic_param->filter_level[1] =
+      frame_header->loop_filter_params.loop_filter_level[1];
+  pic_param->filter_level_u =
+      frame_header->loop_filter_params.loop_filter_level[2];
+  pic_param->filter_level_v =
+      frame_header->loop_filter_params.loop_filter_level[3];
+  pic_param->loop_filter_info_fields.bits.sharpness_level =
+      frame_header->loop_filter_params.loop_filter_sharpness;
+  pic_param->loop_filter_info_fields.bits.mode_ref_delta_enabled =
+      frame_header->loop_filter_params.loop_filter_delta_enabled;
+  pic_param->loop_filter_info_fields.bits.mode_ref_delta_update =
+      frame_header->loop_filter_params.loop_filter_delta_update;
+
+  for (i = 0; i < GST_AV1_TOTAL_REFS_PER_FRAME; i++)
+    pic_param->ref_deltas[i] =
+        frame_header->loop_filter_params.loop_filter_ref_deltas[i];
+  for (i = 0; i < 2; i++)
+    pic_param->mode_deltas[i] =
+        frame_header->loop_filter_params.loop_filter_mode_deltas[i];
+
+  pic_param->mode_control_fields.bits.delta_lf_present_flag =
+      frame_header->loop_filter_params.delta_lf_present;
+  pic_param->mode_control_fields.bits.log2_delta_lf_res =
+      frame_header->loop_filter_params.delta_lf_res;
+  pic_param->mode_control_fields.bits.delta_lf_multi =
+      frame_header->loop_filter_params.delta_lf_multi;
+}
+
+static void
+av1_fill_quantization_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  pic_param->base_qindex = frame_header->quantization_params.base_q_idx;
+  pic_param->y_dc_delta_q = frame_header->quantization_params.delta_q_y_dc;
+  pic_param->u_dc_delta_q = frame_header->quantization_params.delta_q_u_dc;
+  pic_param->u_ac_delta_q = frame_header->quantization_params.delta_q_u_ac;
+  pic_param->v_dc_delta_q = frame_header->quantization_params.delta_q_v_dc;
+  pic_param->v_ac_delta_q = frame_header->quantization_params.delta_q_v_ac;
+
+  pic_param->qmatrix_fields.bits.using_qmatrix =
+      frame_header->quantization_params.using_qmatrix;
+  if (pic_param->qmatrix_fields.bits.using_qmatrix) {
+    pic_param->qmatrix_fields.bits.qm_y =
+        frame_header->quantization_params.qm_y;
+    pic_param->qmatrix_fields.bits.qm_u =
+        frame_header->quantization_params.qm_u;
+    pic_param->qmatrix_fields.bits.qm_v =
+        frame_header->quantization_params.qm_v;
+  } else {
+    pic_param->qmatrix_fields.bits.qm_y = 0;
+    pic_param->qmatrix_fields.bits.qm_u = 0;
+    pic_param->qmatrix_fields.bits.qm_v = 0;
+  }
+
+  pic_param->mode_control_fields.bits.delta_q_present_flag =
+      frame_header->quantization_params.delta_q_present;
+  pic_param->mode_control_fields.bits.log2_delta_q_res =
+      frame_header->quantization_params.delta_q_res;
+}
+
+static void
+av1_fill_cdef_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header, guint8 num_planes)
+{
+  guint8 sec_strength;
+  guint i;
+
+  pic_param->cdef_damping_minus_3 = frame_header->cdef_params.cdef_damping - 3;
+  pic_param->cdef_bits = frame_header->cdef_params.cdef_bits;
+  for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
+    sec_strength = frame_header->cdef_params.cdef_y_sec_strength[i];
+    g_assert (sec_strength <= 4);
+    /* may need to minus 1 in order to merge with primary value. */
+    if (sec_strength == 4)
+      sec_strength--;
+
+    pic_param->cdef_y_strengths[i] =
+        ((frame_header->cdef_params.cdef_y_pri_strength[i] & 0xf) << 2) |
+        (sec_strength & 0x03);
+  }
+  if (num_planes > 1) {
+    for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
+      sec_strength = frame_header->cdef_params.cdef_uv_sec_strength[i];
+      g_assert (sec_strength <= 4);
+      /* may need to minus 1 in order to merge with primary value. */
+      if (sec_strength == 4)
+        sec_strength--;
+
+      pic_param->cdef_uv_strengths[i] =
+          ((frame_header->cdef_params.cdef_uv_pri_strength[i] & 0xf) << 2) |
+          (sec_strength & 0x03);
+    }
+  } else {
+    for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
+      pic_param->cdef_uv_strengths[i] = 0;
+    }
+  }
+}
+
+static void
+av1_fill_loop_restoration_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  pic_param->loop_restoration_fields.bits.yframe_restoration_type =
+      frame_header->loop_restoration_params.frame_restoration_type[0];
+  pic_param->loop_restoration_fields.bits.cbframe_restoration_type =
+      frame_header->loop_restoration_params.frame_restoration_type[1];
+  pic_param->loop_restoration_fields.bits.crframe_restoration_type =
+      frame_header->loop_restoration_params.frame_restoration_type[2];
+  pic_param->loop_restoration_fields.bits.lr_unit_shift =
+      frame_header->loop_restoration_params.lr_unit_shift;
+  pic_param->loop_restoration_fields.bits.lr_uv_shift =
+      frame_header->loop_restoration_params.lr_uv_shift;
+}
+
+static void
+av1_fill_global_motion_info (VADecPictureParameterBufferAV1 * pic_param,
+    GstAV1FrameHeaderOBU * frame_header)
+{
+  guint i, j;
+
+  for (i = 0; i < 7; i++) {
+    pic_param->wm[i].wmtype =
+        frame_header->global_motion_params.gm_type[GST_AV1_REF_LAST_FRAME + i];
+
+    for (j = 0; j < 6; j++)
+      pic_param->wm[i].wmmat[j] =
+          frame_header->global_motion_params.gm_params
+          [GST_AV1_REF_LAST_FRAME + i][j];
+
+    pic_param->wm[i].wmmat[6] = 0;
+    pic_param->wm[i].wmmat[7] = 0;
+
+    pic_param->wm[i].invalid =
+        frame_header->global_motion_params.invalid[GST_AV1_REF_LAST_FRAME + i];
+  }
+}
+
+static gboolean
+av1_fill_picture_frame_header (GstVaapiDecoderAV1 * decoder,
+    GstVaapiPictureAV1 * picture, GstAV1FrameHeaderOBU * frame_header)
+{
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+  VADecPictureParameterBufferAV1 *pic_param =
+      GST_VAAPI_PICTURE (picture)->param;
+  GstAV1SequenceHeaderOBU *seq_header = priv->seq_header;
+  guint i;
+
+  pic_param->profile = seq_header->seq_profile;
+  pic_param->order_hint_bits_minus_1 = seq_header->order_hint_bits_minus_1;
+
+  if (seq_header->bit_depth == 8)
+    pic_param->bit_depth_idx = 0;
+  else if (seq_header->bit_depth == 10)
+    pic_param->bit_depth_idx = 1;
+  else if (seq_header->bit_depth == 12)
+    pic_param->bit_depth_idx = 2;
+  else
+    g_assert (0);
+
+  pic_param->matrix_coefficients = seq_header->color_config.matrix_coefficients;
+
+#define COPY_SEQ_FIELD(FP, FS) \
+    pic_param->seq_info_fields.fields.FP = (seq_header)->FS
+
+  COPY_SEQ_FIELD (still_picture, still_picture);
+  COPY_SEQ_FIELD (use_128x128_superblock, use_128x128_superblock);
+  COPY_SEQ_FIELD (enable_filter_intra, enable_filter_intra);
+  COPY_SEQ_FIELD (enable_intra_edge_filter, enable_intra_edge_filter);
+  COPY_SEQ_FIELD (enable_interintra_compound, enable_interintra_compound);
+  COPY_SEQ_FIELD (enable_masked_compound, enable_masked_compound);
+  COPY_SEQ_FIELD (enable_dual_filter, enable_dual_filter);
+  COPY_SEQ_FIELD (enable_order_hint, enable_order_hint);
+  COPY_SEQ_FIELD (enable_jnt_comp, enable_jnt_comp);
+  COPY_SEQ_FIELD (enable_cdef, enable_cdef);
+  COPY_SEQ_FIELD (mono_chrome, color_config.mono_chrome);
+  COPY_SEQ_FIELD (color_range, color_config.color_range);
+  COPY_SEQ_FIELD (subsampling_x, color_config.subsampling_x);
+  COPY_SEQ_FIELD (subsampling_y, color_config.subsampling_y);
+  COPY_SEQ_FIELD (film_grain_params_present, film_grain_params_present);
+#undef COPY_SEQ_FIELD
+
+  if (frame_header->film_grain_params.apply_grain) {
+    g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE_ID (picture->recon_proxy) !=
+        GST_VAAPI_PICTURE (picture)->surface_id);
+    pic_param->current_frame =
+        GST_VAAPI_SURFACE_PROXY_SURFACE_ID (picture->recon_proxy);
+    pic_param->current_display_picture =
+        GST_VAAPI_PICTURE (picture)->surface_id;
+  } else {
+    pic_param->current_frame = GST_VAAPI_PICTURE (picture)->surface_id;
+    pic_param->current_display_picture =
+        GST_VAAPI_PICTURE (picture)->surface_id;
+  }
+
+  pic_param->frame_width_minus1 = frame_header->upscaled_width - 1;
+  pic_param->frame_height_minus1 = frame_header->frame_height - 1;
+
+  for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++) {
+    if (priv->ref_frames[i])
+      pic_param->ref_frame_map[i] =
+          GST_VAAPI_SURFACE_PROXY_SURFACE_ID (priv->ref_frames[i]->recon_proxy);
+    else
+      pic_param->ref_frame_map[i] = VA_INVALID_SURFACE;
+  }
+  for (i = 0; i < GST_AV1_REFS_PER_FRAME; i++) {
+    pic_param->ref_frame_idx[i] = frame_header->ref_frame_idx[i];
+  }
+  pic_param->primary_ref_frame = frame_header->primary_ref_frame;
+  pic_param->order_hint = frame_header->order_hint;
+
+  av1_fill_segment_info (pic_param, frame_header);
+  av1_fill_film_grain_info (pic_param, frame_header);
+
+  pic_param->tile_cols = frame_header->tile_info.tile_cols;
+  pic_param->tile_rows = frame_header->tile_info.tile_rows;
+  for (i = 0; i < 63; i++) {
+    pic_param->width_in_sbs_minus_1[i] =
+        frame_header->tile_info.width_in_sbs_minus_1[i];
+    pic_param->height_in_sbs_minus_1[i] =
+        frame_header->tile_info.height_in_sbs_minus_1[i];
+  }
+
+  pic_param->context_update_tile_id =
+      frame_header->tile_info.context_update_tile_id;
+
+#define COPY_PIC_FIELD(FIELD) \
+    pic_param->pic_info_fields.bits.FIELD = (frame_header)->FIELD
+
+  COPY_PIC_FIELD (frame_type);
+  COPY_PIC_FIELD (show_frame);
+  COPY_PIC_FIELD (showable_frame);
+  COPY_PIC_FIELD (error_resilient_mode);
+  COPY_PIC_FIELD (disable_cdf_update);
+  COPY_PIC_FIELD (allow_screen_content_tools);
+  COPY_PIC_FIELD (force_integer_mv);
+  COPY_PIC_FIELD (allow_intrabc);
+  COPY_PIC_FIELD (use_superres);
+  COPY_PIC_FIELD (allow_high_precision_mv);
+  COPY_PIC_FIELD (is_motion_mode_switchable);
+  COPY_PIC_FIELD (use_ref_frame_mvs);
+  COPY_PIC_FIELD (disable_frame_end_update_cdf);
+  pic_param->pic_info_fields.bits.uniform_tile_spacing_flag =
+      frame_header->tile_info.uniform_tile_spacing_flag;
+  COPY_PIC_FIELD (allow_warped_motion);
+#undef COPY_PIC_FIELD
+
+  av1_fill_loop_filter_info (pic_param, frame_header);
+  av1_fill_quantization_info (pic_param, frame_header);
+
+  pic_param->mode_control_fields.bits.tx_mode = frame_header->tx_mode;
+  pic_param->mode_control_fields.bits.reference_select =
+      frame_header->reference_select;
+  pic_param->mode_control_fields.bits.reduced_tx_set_used =
+      frame_header->reduced_tx_set;
+  pic_param->mode_control_fields.bits.skip_mode_present =
+      frame_header->skip_mode_present;
+
+  av1_fill_cdef_info (pic_param, frame_header, seq_header->num_planes);
+  av1_fill_loop_restoration_info (pic_param, frame_header);
+  av1_fill_global_motion_info (pic_param, frame_header);
+
+  return TRUE;
+}
+
+static GstVaapiDecoderStatus
+av1_decode_frame_header (GstVaapiDecoderAV1 * decoder,
+    GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderAV1Private *const priv = &decoder->priv;
+  GstVaapiParserInfoAV1 *const pi = unit->parsed_info;
+  GstAV1FrameHeaderOBU *frame_header = NULL;
+  GstVaapiDecoderStatus ret = GST_VAAPI_DECODER_STATUS_SUCCESS;
+  GstVaapiPictureAV1 *picture = NULL;
+
+  if (pi->obu.obu_type == GST_AV1_OBU_FRAME_HEADER) {
+    frame_header = &pi->frame_header;
+  } else {
+    g_assert (pi->obu.obu_type == GST_AV1_OBU_FRAME);
+    frame_header = &pi->frame.frame_header;
+  }
+
+  if (frame_header->show_existing_frame) {
+    GstVaapiPictureAV1 *to_show_picture = NULL;
+
+    to_show_picture = priv->ref_frames[frame_header->frame_to_show_map_idx];
+    if (to_show_picture == NULL) {
+      GST_ERROR ("frame_to_show_map_idx point to a invalid picture");
+      return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+    }
+
+    if (gst_av1_parser_reference_frame_loading (priv->parser,
+            &to_show_picture->frame_header) != GST_AV1_PARSER_OK) {
+      GST_ERROR ("load frame to show ref frame failed");
+      return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+    }
+
+    picture = (GstVaapiPictureAV1 *)
+        gst_vaapi_picture_new_clone (GST_VAAPI_PICTURE_CAST (to_show_picture));
+    if (!picture)
+      return GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE;
+    gst_vaapi_surface_proxy_replace (&picture->recon_proxy,
+        to_show_picture->recon_proxy);
+    picture->cloned = TRUE;
+    GST_VAAPI_PICTURE_FLAG_UNSET (picture, GST_VAAPI_PICTURE_FLAG_SKIPPED);
+
+    picture->frame_header = to_show_picture->frame_header;
+    /* only update references if the frame_to_show_map_idx is a KEY FRAME */
+    if (picture->frame_header.frame_type == GST_AV1_KEY_FRAME) {
+      picture->frame_header = to_show_picture->frame_header;
+      g_assert (picture->frame_header.refresh_frame_flags ==
+          ((1 << GST_AV1_NUM_REF_FRAMES) - 1));
+    } else {
+      /* Just set to no update ref */
+      picture->frame_header.refresh_frame_flags = 0;
+    }
+  } else {
+    /* Resolution changed */
+    if (priv->width != priv->seq_header->max_frame_width_minus_1 + 1 ||
+        priv->height != priv->seq_header->max_frame_height_minus_1 + 1) {
+      priv->reset_context = TRUE;
+      priv->width = priv->seq_header->max_frame_width_minus_1 + 1;
+      priv->height = priv->seq_header->max_frame_height_minus_1 + 1;
+      GST_INFO ("change the resolution to %dx%d", priv->width, priv->height);
+    }
+
+    ret = av1_decoder_ensure_context (decoder);
+    if (ret != GST_VAAPI_DECODER_STATUS_SUCCESS)
+      return ret;
+
+    picture = gst_vaapi_picture_av1_new (decoder);
+    if (!picture)
+      return GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE;
+
+    if (frame_header->upscaled_width != priv->width ||
+        frame_header->frame_height != priv->height) {
+      GstVaapiRectangle crop_rect;
+
+      if (frame_header->upscaled_width > priv->width) {
+        GST_WARNING ("Frame width is %d, bigger than sequence max width %d",
+            frame_header->upscaled_width, priv->width);
+        gst_vaapi_codec_object_unref (picture);
+        return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+      }
+      if (frame_header->frame_height > priv->height) {
+        GST_WARNING ("Frame height is %d, bigger than sequence max height %d",
+            frame_header->frame_height, priv->height);
+        gst_vaapi_codec_object_unref (picture);
+        return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+      }
+
+      crop_rect.x = 0;
+      crop_rect.y = 0;
+      crop_rect.width = frame_header->upscaled_width;
+      crop_rect.height = frame_header->frame_height;
+      gst_vaapi_picture_set_crop_rect (GST_VAAPI_PICTURE (picture), &crop_rect);
+    }
+
+    if (frame_header->film_grain_params.apply_grain) {
+      GstVaapiSurfaceProxy *recon_proxy = gst_vaapi_context_get_surface_proxy
+          (GST_VAAPI_DECODER (decoder)->context);
+      if (!recon_proxy) {
+        gst_vaapi_codec_object_unref (picture);
+        return GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE;
+      }
+      gst_vaapi_surface_proxy_replace (&picture->recon_proxy, recon_proxy);
+    }
+
+    picture->frame_header = *frame_header;
+
+    /* this frame will not show this time */
+    if (!frame_header->show_frame)
+      GST_VAAPI_PICTURE_FLAG_SET (picture, GST_VAAPI_PICTURE_FLAG_SKIPPED);
+
+    GST_VAAPI_PICTURE (picture)->structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
+    GST_VAAPI_PICTURE (picture)->type =
+        frame_header->frame_is_intra ? GST_VAAPI_PICTURE_TYPE_I :
+        GST_VAAPI_PICTURE_TYPE_P;
+
+    if (!av1_fill_picture_frame_header (decoder, picture, frame_header)) {
+      gst_vaapi_codec_object_unref (picture);
+      return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+    }
+  }
+
+  gst_vaapi_picture_replace (&priv->current_picture, picture);
+  gst_vaapi_picture_unref (picture);
+
+  return ret;
+}
+
+static GstVaapiDecoderStatus
+av1_decode_tile_data (GstVaapiDecoderAV1 * decoder, GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderAV1Private *const priv = &decoder->priv;
+  GstVaapiPictureAV1 *picture = priv->current_picture;
+  GstVaapiParserInfoAV1 *const pi = unit->parsed_info;
+  GstAV1TileGroupOBU *tile_group = &pi->tile_group;
+  guint32 i;
+  GstVaapiSlice *slice;
+  GstBuffer *const buffer =
+      GST_VAAPI_DECODER_CODEC_FRAME (decoder)->input_buffer;
+  GstMapInfo map_info;
+
+  if (!picture) {
+    GST_WARNING ("Decode the tile date without a picture");
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+  }
+
+  if (!gst_buffer_map (buffer, &map_info, GST_MAP_READ)) {
+    GST_ERROR ("failed to map buffer");
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+  }
+
+  slice = GST_VAAPI_SLICE_NEW_N_PARAMS (AV1, decoder,
+      map_info.data + pi->data_offset + unit->offset, pi->obu.obu_size,
+      (tile_group->tg_end - tile_group->tg_start + 1));
+  gst_buffer_unmap (buffer, &map_info);
+  if (!slice) {
+    GST_ERROR ("failed to allocate slice");
+    return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
+  }
+
+  for (i = 0; i < tile_group->tg_end - tile_group->tg_start + 1; i++) {
+    VASliceParameterBufferAV1 *const slice_param =
+        slice->param + i * sizeof (VASliceParameterBufferAV1);
+
+    slice_param->slice_data_size =
+        tile_group->entry[tile_group->tg_start + i].tile_size;
+    slice_param->slice_data_offset =
+        tile_group->entry[tile_group->tg_start + i].tile_offset;
+    slice_param->tile_row =
+        tile_group->entry[tile_group->tg_start + i].tile_row;
+    slice_param->tile_column =
+        tile_group->entry[tile_group->tg_start + i].tile_col;
+    slice_param->slice_data_flag = 0;
+  }
+
+  gst_vaapi_picture_add_slice (GST_VAAPI_PICTURE_CAST (picture), slice);
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static GstVaapiDecoderStatus
+av1_decode_unit (GstVaapiDecoderAV1 * decoder, GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderStatus ret = GST_VAAPI_DECODER_STATUS_SUCCESS;
+  GstVaapiParserInfoAV1 *const pi = unit->parsed_info;
+
+  GST_DEBUG ("begin to decode the unit of %s", av1_obu_name (pi->obu.obu_type));
+
+  switch (pi->obu.obu_type) {
+    case GST_AV1_OBU_SEQUENCE_HEADER:
+      ret = av1_decode_seqeunce (decoder, unit);
+      break;
+    case GST_AV1_OBU_FRAME_HEADER:
+      ret = av1_decode_frame_header (decoder, unit);
+      break;
+    case GST_AV1_OBU_FRAME:
+      ret = av1_decode_frame_header (decoder, unit);
+      if (ret != GST_VAAPI_DECODER_STATUS_SUCCESS)
+        break;
+      /* fall through */
+    case GST_AV1_OBU_TILE_GROUP:
+      ret = av1_decode_tile_data (decoder, unit);
+      break;
+    case GST_AV1_OBU_METADATA:
+    case GST_AV1_OBU_REDUNDANT_FRAME_HEADER:
+    case GST_AV1_OBU_PADDING:
+      /* Not handled */
+      ret = GST_VAAPI_DECODER_STATUS_SUCCESS;
+      break;
+    default:
+      GST_WARNING ("can not handle obu type %s",
+          av1_obu_name (pi->obu.obu_type));
+      ret = GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+  }
+
+  return ret;
+}
+
+static GstVaapiDecoderStatus
+av1_decode_current_picture (GstVaapiDecoderAV1 * decoder)
+{
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+  GstVaapiPicture *const picture = (GstVaapiPicture *) priv->current_picture;
+
+  g_assert (picture);
+
+  if (!gst_vaapi_picture_decode (picture))
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static GstVaapiDecoderStatus
+av1_decoder_update_state (GstVaapiDecoderAV1 * decoder,
+    GstVaapiPictureAV1 * picture)
+{
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+  GstAV1ParserResult ret;
+  guint i;
+
+  /* This is a show_existing_frame case, only update key frame */
+  if (picture->cloned && picture->frame_header.frame_type != GST_AV1_KEY_FRAME)
+    return GST_VAAPI_DECODER_STATUS_SUCCESS;
+
+  ret = gst_av1_parser_reference_frame_update (priv->parser,
+      &picture->frame_header);
+  if (ret != GST_AV1_PARSER_OK) {
+    GST_ERROR ("failed to update the reference.");
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+  }
+
+  for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++) {
+    if ((picture->frame_header.refresh_frame_flags >> i) & 1) {
+      if (picture) {
+        GST_LOG ("reference frame %p to ref slot:%d", picture, i);
+        gst_vaapi_picture_replace (&priv->ref_frames[i], picture);
+      } else {
+        GST_ERROR ("we miss some reference frame for ref slot:%d", i);
+        gst_vaapi_picture_replace (&priv->ref_frames[i], NULL);
+      }
+    }
+  }
+
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static void
+av1_decoder_reset (GstVaapiDecoderAV1 * decoder)
+{
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+  guint i;
+
+  priv->profile = GST_VAAPI_PROFILE_UNKNOWN;
+  priv->width = 0;
+  priv->height = 0;
+  priv->annex_b = FALSE;
+  priv->reset_context = FALSE;
+
+  if (priv->current_picture)
+    gst_vaapi_picture_replace (&priv->current_picture, NULL);
+
+  if (priv->seq_header) {
+    g_slice_free (GstAV1SequenceHeaderOBU, priv->seq_header);
+    priv->seq_header = NULL;
+  }
+
+  for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++)
+    gst_vaapi_picture_replace (&priv->ref_frames[i], NULL);
+}
+
+static gboolean
+av1_is_picture_end (GstVaapiParserInfoAV1 * pi)
+{
+  GstAV1TileGroupOBU *tile_group = NULL;
+
+  if (pi->obu.obu_type == GST_AV1_OBU_FRAME) {
+    tile_group = &pi->frame.tile_group;
+  } else if (pi->obu.obu_type == GST_AV1_OBU_TILE_GROUP) {
+    tile_group = &pi->tile_group;
+  }
+  g_assert (tile_group);
+
+  if (tile_group->tg_end == tile_group->num_tiles - 1)
+    return TRUE;
+
+  return FALSE;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_reset (GstVaapiDecoder * base_decoder)
+{
+  GstVaapiDecoderAV1 *const decoder = GST_VAAPI_DECODER_AV1 (base_decoder);
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+
+  av1_decoder_reset (decoder);
+  gst_av1_parser_reset (priv->parser, FALSE);
+
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_parse (GstVaapiDecoder * base_decoder,
+    GstAdapter * adapter, gboolean at_eos, GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderAV1 *const decoder = GST_VAAPI_DECODER_AV1 (base_decoder);
+  GstVaapiDecoderAV1Private *const priv = &decoder->priv;
+  GstVaapiParserInfoAV1 *pi;
+  GstAV1Parser *parser = priv->parser;
+  guchar *buf;
+  guint buf_size, flags;
+  GstAV1OBU obu;
+  GstAV1ParserResult av1_ret;
+  GstVaapiDecoderStatus ret = GST_VAAPI_DECODER_STATUS_SUCCESS;
+  guint32 consumed;
+
+  buf_size = gst_adapter_available (adapter);
+  if (!buf_size)
+    return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
+
+  /* no need to do unmap here */
+  buf = (guchar *) gst_adapter_map (adapter, buf_size);
+  if (!buf)
+    return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
+
+  av1_ret =
+      gst_av1_parser_identify_one_obu (parser, buf, buf_size, &obu, &consumed);
+  if (av1_ret == GST_AV1_PARSER_DROP) {
+    GST_LOG ("just discard a %s obu with size %d, consumed %d",
+        av1_obu_name (obu.obu_type), obu.obu_size, consumed);
+    gst_adapter_flush (adapter, consumed);
+    return GST_VAAPI_DECODER_STATUS_SUCCESS;
+  } else if (av1_ret == GST_AV1_PARSER_NO_MORE_DATA) {
+    return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
+  } else if (av1_ret == GST_AV1_PARSER_BITSTREAM_ERROR) {
+    GST_WARNING_OBJECT (decoder, "parse error, an invalid bitstream");
+    gst_adapter_flush (adapter, consumed);
+    return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
+  } else if (av1_ret != GST_AV1_PARSER_OK) {
+    GST_WARNING_OBJECT (decoder, "parse error, unknown error");
+    gst_adapter_flush (adapter, consumed);
+    return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+  }
+
+  GST_DEBUG ("get one %s obu with size %d, consumed %d",
+      av1_obu_name (obu.obu_type), obu.obu_size, consumed);
+
+  pi = parser_info_av1_new (&obu);
+  if (!pi) {
+    gst_adapter_flush (adapter, consumed);
+    return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
+  }
+
+  gst_vaapi_decoder_unit_set_parsed_info (unit, pi,
+      (GDestroyNotify) gst_vaapi_mini_object_unref);
+
+  flags = 0;
+  av1_ret = GST_AV1_PARSER_OK;
+  switch (pi->obu.obu_type) {
+    case GST_AV1_OBU_TEMPORAL_DELIMITER:
+      av1_ret = gst_av1_parser_parse_temporal_delimiter_obu (parser, &pi->obu);
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_SKIP;
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
+      break;
+    case GST_AV1_OBU_SEQUENCE_HEADER:
+      av1_ret = gst_av1_parser_parse_sequence_header_obu (parser, &pi->obu,
+          &pi->seq_header);
+      break;
+    case GST_AV1_OBU_REDUNDANT_FRAME_HEADER:
+      av1_ret = gst_av1_parser_parse_frame_header_obu (parser, &pi->obu,
+          &pi->frame_header);
+      break;
+    case GST_AV1_OBU_FRAME_HEADER:
+      av1_ret = gst_av1_parser_parse_frame_header_obu (parser, &pi->obu,
+          &pi->frame_header);
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
+      if (pi->frame_header.show_existing_frame) {
+        flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
+        flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
+      }
+      break;
+    case GST_AV1_OBU_FRAME:
+      av1_ret = gst_av1_parser_parse_frame_obu (parser, &obu, &pi->frame);
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_START;
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
+      pi->data_offset = obu.data - buf;
+      if (av1_is_picture_end (pi))
+        flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
+      break;
+    case GST_AV1_OBU_METADATA:
+      av1_ret = gst_av1_parser_parse_metadata_obu (parser, &obu, &pi->metadata);
+      break;
+    case GST_AV1_OBU_TILE_GROUP:
+      av1_ret = gst_av1_parser_parse_tile_group_obu (parser, &obu,
+          &pi->tile_group);
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
+      pi->data_offset = obu.data - buf;
+      if (av1_is_picture_end (pi))
+        flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
+      break;
+    case GST_AV1_OBU_TILE_LIST:
+      av1_ret =
+          gst_av1_parser_parse_tile_list_obu (parser, &obu, &pi->tile_list);
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_SLICE;
+      flags |= GST_VAAPI_DECODER_UNIT_FLAG_FRAME_END;
+      break;
+    case GST_AV1_OBU_PADDING:
+      break;
+    default:
+      GST_WARNING_OBJECT (decoder, "an unrecognized obu type %d", obu.obu_type);
+      av1_ret = GST_AV1_PARSER_BITSTREAM_ERROR;
+      break;
+  }
+
+  if (av1_ret != GST_AV1_PARSER_OK) {
+    /* Should not get NO_MORE_DATA, the obu size is already known */
+    GST_WARNING_OBJECT (decoder, "parse %s obu error",
+        av1_obu_name (pi->obu.obu_type));
+    gst_adapter_flush (adapter, consumed);
+    gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (pi));
+    return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
+  }
+
+  unit->size = consumed;
+  unit->offset = pi->obu.data - buf;
+  GST_VAAPI_DECODER_UNIT_FLAG_SET (unit, flags);
+
+  return ret;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_decode (GstVaapiDecoder * base_decoder,
+    GstVaapiDecoderUnit * unit)
+{
+  GstVaapiDecoderAV1 *const decoder = GST_VAAPI_DECODER_AV1 (base_decoder);
+  GstVaapiDecoderStatus status;
+
+  status = av1_decode_unit (decoder, unit);
+
+  return status;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_start_frame (GstVaapiDecoder * base_decoder,
+    GstVaapiDecoderUnit * base_unit)
+{
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_end_frame (GstVaapiDecoder * base_decoder)
+{
+  GstVaapiDecoderAV1 *const decoder = GST_VAAPI_DECODER_AV1 (base_decoder);
+  GstVaapiDecoderStatus status = GST_VAAPI_DECODER_STATUS_SUCCESS;
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+
+  if (!priv->current_picture->cloned)
+    status = av1_decode_current_picture (decoder);
+
+  /* update state anyway */
+  av1_decoder_update_state (decoder, priv->current_picture);
+
+  if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
+    goto out;
+
+  if (!gst_vaapi_picture_output (GST_VAAPI_PICTURE (priv->current_picture)))
+    status = GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
+
+out:
+  gst_vaapi_picture_replace (&priv->current_picture, NULL);
+  return status;
+}
+
+static GstVaapiDecoderStatus
+gst_vaapi_decoder_av1_flush (GstVaapiDecoder * base_decoder)
+{
+  return GST_VAAPI_DECODER_STATUS_SUCCESS;
+}
+
+static void
+gst_vaapi_decoder_av1_finalize (GObject * object)
+{
+  GstVaapiDecoder *const base_decoder = GST_VAAPI_DECODER (object);
+  GstVaapiDecoderAV1 *const decoder = GST_VAAPI_DECODER_AV1 (base_decoder);
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+
+  av1_decoder_reset (decoder);
+  if (decoder->priv.parser)
+    gst_av1_parser_free (decoder->priv.parser);
+  priv->parser = NULL;
+
+  G_OBJECT_CLASS (gst_vaapi_decoder_av1_parent_class)->finalize (object);
+}
+
+static void
+gst_vaapi_decoder_av1_class_init (GstVaapiDecoderAV1Class * klass)
+{
+  GObjectClass *const object_class = G_OBJECT_CLASS (klass);
+  GstVaapiDecoderClass *const decoder_class = GST_VAAPI_DECODER_CLASS (klass);
+
+  object_class->finalize = gst_vaapi_decoder_av1_finalize;
+
+  decoder_class->reset = gst_vaapi_decoder_av1_reset;
+  decoder_class->parse = gst_vaapi_decoder_av1_parse;
+  decoder_class->decode = gst_vaapi_decoder_av1_decode;
+  decoder_class->start_frame = gst_vaapi_decoder_av1_start_frame;
+  decoder_class->end_frame = gst_vaapi_decoder_av1_end_frame;
+  decoder_class->flush = gst_vaapi_decoder_av1_flush;
+}
+
+static void
+gst_vaapi_decoder_av1_init (GstVaapiDecoderAV1 * decoder)
+{
+  guint i;
+  GstVaapiDecoderAV1Private *priv = &decoder->priv;
+
+  priv->profile = GST_VAAPI_PROFILE_UNKNOWN;
+  priv->width = 0;
+  priv->height = 0;
+  priv->annex_b = FALSE;
+  priv->reset_context = FALSE;
+  priv->current_picture = NULL;
+  priv->seq_header = NULL;
+
+  for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++)
+    priv->ref_frames[i] = NULL;
+
+  priv->parser = gst_av1_parser_new ();
+}
+
+/**
+ * gst_vaapi_decoder_av1_new:
+ * @display: a #GstVaapiDisplay
+ * @caps: a #GstCaps holding codec information
+ *
+ * Creates a new #GstVaapiDecoder for AV1 decoding. The @caps can
+ * hold extra information like codec-data and pictured coded size.
+ *
+ * Return value: the newly allocated #GstVaapiDecoder object
+ */
+GstVaapiDecoder *
+gst_vaapi_decoder_av1_new (GstVaapiDisplay * display, GstCaps * caps)
+{
+  return g_object_new (GST_TYPE_VAAPI_DECODER_AV1, "display", display,
+      "caps", caps, NULL);
+}
diff --git a/gst-libs/gst/vaapi/gstvaapidecoder_av1.h b/gst-libs/gst/vaapi/gstvaapidecoder_av1.h
new file mode 100644
index 00000000..8604093e
--- /dev/null
+++ b/gst-libs/gst/vaapi/gstvaapidecoder_av1.h
@@ -0,0 +1,47 @@
+/*
+ *  gstvaapidecoder_av1.h - AV1 decoder
+ *
+ *  Copyright (C) 2019-2020 Intel Corporation
+ *    Author: Junyan He <junyan.he@hotmail.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public License
+ *  as published by the Free Software Foundation; either version 2.1
+ *  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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+#ifndef GST_VAAPI_DECODER_AV1_H
+#define GST_VAAPI_DECODER_AV1_H
+
+#include <gst/vaapi/gstvaapidecoder.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_VAAPI_DECODER_AV1 \
+    (gst_vaapi_decoder_av1_get_type ())
+#define GST_VAAPI_DECODER_AV1(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_DECODER_AV1, GstVaapiDecoderAV1))
+#define GST_VAAPI_IS_DECODER_AV1(obj) \
+    (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_DECODER_AV1))
+
+typedef struct _GstVaapiDecoderAV1              GstVaapiDecoderAV1;
+
+GType
+gst_vaapi_decoder_av1_get_type (void) G_GNUC_CONST;
+
+GstVaapiDecoder *
+gst_vaapi_decoder_av1_new (GstVaapiDisplay * display, GstCaps * caps);
+
+G_END_DECLS
+
+#endif /* GST_VAAPI_DECODER_AV1_H */
diff --git a/gst-libs/gst/vaapi/gstvaapiprofile.c b/gst-libs/gst/vaapi/gstvaapiprofile.c
index 5a2e1c05..35d95c89 100644
--- a/gst-libs/gst/vaapi/gstvaapiprofile.c
+++ b/gst-libs/gst/vaapi/gstvaapiprofile.c
@@ -71,6 +71,7 @@ static const GstVaapiCodecMap gst_vaapi_codecs[] = {
   {GST_VAAPI_CODEC_VP8, "vp8"},
   {GST_VAAPI_CODEC_H265, "h265"},
   {GST_VAAPI_CODEC_VP9, "vp9"},
+  {GST_VAAPI_CODEC_AV1, "av1"},
   {0,}
 };
 
@@ -154,6 +155,12 @@ static const GstVaapiProfileMap gst_vaapi_profiles[] = {
       "video/x-vp9", "2"},
   {GST_VAAPI_PROFILE_VP9_3, VAProfileVP9Profile3,
       "video/x-vp9", "3"},
+#if VA_CHECK_VERSION(1,8,0)
+  {GST_VAAPI_PROFILE_AV1_0, VAProfileAV1Profile0,
+      "video/x-av1", "0"},
+  {GST_VAAPI_PROFILE_AV1_1, VAProfileAV1Profile1,
+      "video/x-av1", "1"},
+#endif
   {0,}
 };
 
diff --git a/gst-libs/gst/vaapi/gstvaapiprofile.h b/gst-libs/gst/vaapi/gstvaapiprofile.h
index 3255fe53..8fc98c1c 100644
--- a/gst-libs/gst/vaapi/gstvaapiprofile.h
+++ b/gst-libs/gst/vaapi/gstvaapiprofile.h
@@ -42,6 +42,7 @@ G_BEGIN_DECLS
  * @GST_VAAPI_CODEC_JPEG: JPEG (ITU-T 81)
  * @GST_VAAPI_CODEC_H265: H.265 aka MPEG-H Part 2 (ITU-T H.265)
  * @GST_VAAPI_CODEC_VP9: VP9 (libvpx)
+ * @GST_VAAPI_CODEC_AV1: AV1 (aom)
  *
  * The set of all codecs for #GstVaapiCodec.
  */
@@ -57,6 +58,7 @@ typedef enum {
     GST_VAAPI_CODEC_VP8         = GST_MAKE_FOURCC('V','P','8',0),
     GST_VAAPI_CODEC_H265        = GST_MAKE_FOURCC('2','6','5',0),
     GST_VAAPI_CODEC_VP9         = GST_MAKE_FOURCC('V','P','9',0),
+    GST_VAAPI_CODEC_AV1         = GST_MAKE_FOURCC('A','V','1',0),
 } GstVaapiCodec;
 
 /**
@@ -142,6 +144,10 @@ typedef enum {
  *   VP9 prfile 2, bitdepth=10/12, 420
  * @GST_VAAPI_PROFILE_VP9_3:
  *   VP9 prfile 3 bitdepth=10/12, 422/444/440/RGB
+ * @GST_VAAPI_PROFILE_AV1_0:
+ *   AV1 prfile 0, bitdepth=8/10, 420/400
+ * @GST_VAAPI_PROFILE_AV1_1:
+ *   AV1 prfile 1 bitdepth=8/10, 444
  *
  * The set of all profiles for #GstVaapiProfile.
  */
@@ -196,6 +202,9 @@ typedef enum {
     GST_VAAPI_PROFILE_VP9_1                   = GST_VAAPI_MAKE_PROFILE(VP9,2),
     GST_VAAPI_PROFILE_VP9_2                   = GST_VAAPI_MAKE_PROFILE(VP9,3),
     GST_VAAPI_PROFILE_VP9_3                   = GST_VAAPI_MAKE_PROFILE(VP9,4),
+
+    GST_VAAPI_PROFILE_AV1_0                   = GST_VAAPI_MAKE_PROFILE(AV1,1),
+    GST_VAAPI_PROFILE_AV1_1                   = GST_VAAPI_MAKE_PROFILE(AV1,2),
 } GstVaapiProfile;
 
 /**
diff --git a/gst-libs/gst/vaapi/gstvaapiutils.c b/gst-libs/gst/vaapi/gstvaapiutils.c
index 1f228e37..46bb65ef 100644
--- a/gst-libs/gst/vaapi/gstvaapiutils.c
+++ b/gst-libs/gst/vaapi/gstvaapiutils.c
@@ -255,6 +255,10 @@ string_of_VAProfile (VAProfile profile)
       MAP (VP9Profile1);
       MAP (VP9Profile2);
       MAP (VP9Profile3);
+#if VA_CHECK_VERSION(1,8,0)
+      MAP (AV1Profile0);
+      MAP (AV1Profile1);
+#endif
 #undef MAP
     default:
       break;
diff --git a/gst-libs/gst/vaapi/meson.build b/gst-libs/gst/vaapi/meson.build
index aadd4fd4..d4353a43 100644
--- a/gst-libs/gst/vaapi/meson.build
+++ b/gst-libs/gst/vaapi/meson.build
@@ -110,6 +110,11 @@ if USE_VP9_ENCODER
   gstlibvaapi_headers += 'gstvaapiencoder_vp9.h'
 endif
 
+if USE_AV1_DECODER
+  gstlibvaapi_sources += 'gstvaapidecoder_av1.c'
+  gstlibvaapi_headers += 'gstvaapidecoder_av1.h'
+endif
+
 if USE_DRM
   gstlibvaapi_sources += [
       'gstvaapidisplay_drm.c',