d3d11decoder: Implement array-of-texture DPB again

Re-implementation of array-of-texture based on d3d11 memory pool.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2097>

sys/d3d11/gstd3d11decoder.cpp

@@ -151,6 +151,9 @@ struct _GstD3D11Decoder
   guint dpb_size;
   guint downstream_min_buffers;
 
+  /* Used for array-of-texture */
+  guint8 next_view_id;
+
   /* for staging */
   ID3D11Texture2D *staging;
   gsize staging_texture_offset[GST_VIDEO_MAX_PLANES];
@@ -356,11 +359,25 @@ gst_d3d11_decoder_is_configured (GstD3D11Decoder * decoder)
   return decoder->configured;
 }
 
+static GQuark
+gst_d3d11_decoder_view_id_quark (void)
+{
+  static gsize id_quark = 0;
+
+  if (g_once_init_enter (&id_quark)) {
+    GQuark quark = g_quark_from_string ("GstD3D11DecoderViewId");
+    g_once_init_leave (&id_quark, quark);
+  }
+
+  return (GQuark) id_quark;
+}
+
 static gboolean
 gst_d3d11_decoder_ensure_output_view (GstD3D11Decoder * self,
     GstBuffer * buffer)
 {
   GstD3D11Memory *mem;
+  gpointer val = NULL;
 
   mem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, 0);
   if (!gst_d3d11_memory_get_decoder_output_view (mem, self->video_device,
@@ -369,6 +386,28 @@ gst_d3d11_decoder_ensure_output_view (GstD3D11Decoder * self,
     return FALSE;
   }
 
+  if (!self->use_array_of_texture)
+    return TRUE;
+
+  val = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
+      gst_d3d11_decoder_view_id_quark ());
+  if (!val) {
+    g_assert (self->next_view_id < 128);
+    g_assert (self->next_view_id > 0);
+
+    gst_mini_object_set_qdata (GST_MINI_OBJECT (mem),
+        gst_d3d11_decoder_view_id_quark (),
+        GUINT_TO_POINTER (self->next_view_id), NULL);
+
+    self->next_view_id++;
+    /* valid view range is [0, 126], but 0 is not used to here
+     * (it's NULL as well) */
+    self->next_view_id %= 128;
+    if (self->next_view_id == 0)
+      self->next_view_id = 1;
+  }
+
+
   return TRUE;
 }
 
@@ -410,8 +449,17 @@ gst_d3d11_decoder_prepare_output_view_pool (GstD3D11Decoder * self)
       "(dpb size: %d, downstream min buffers: %d)", pool_size, self->dpb_size,
       self->downstream_min_buffers);
 
-  if (!self->use_array_of_texture)
+  if (!self->use_array_of_texture) {
     alloc_params->desc[0].ArraySize = pool_size;
+  } else {
+    /* Valid view id is [0, 126], but we will use [1, 127] range so that
+     * it can be used by qdata, because zero is equal to null */
+    self->next_view_id = 1;
+
+    /* our pool size can be increased as much as possbile */
+    pool_size = 0;
+  }
+
   gst_video_alignment_reset (&align);
 
   align.padding_right = self->aligned_width - GST_VIDEO_INFO_WIDTH (info);
@@ -843,18 +891,12 @@ gst_d3d11_decoder_open (GstD3D11Decoder * self)
   GST_DEBUG_OBJECT (self, "ConfigDecoderSpecific 0x%x",
       best_config->ConfigDecoderSpecific);
 
-  /* FIXME: Revisit this at some point.
-   * Some 4K VP9 + super frame enabled streams would be broken with
-   * this configuration (driver crash) on Intel and Nvidia
-   */
-#if 0
   /* bit 14 is equal to 1b means this config support array of texture and
    * it's recommended type as per DXVA spec */
   if ((best_config->ConfigDecoderSpecific & 0x4000) == 0x4000) {
     GST_DEBUG_OBJECT (self, "Config support array of texture");
     self->use_array_of_texture = TRUE;
   }
-#endif
 
   hr = video_device->CreateVideoDecoder (&decoder_desc,
       best_config, &self->decoder_handle);
@@ -1101,7 +1143,7 @@ gst_d3d11_decoder_get_output_view_buffer (GstD3D11Decoder * decoder,
 
 ID3D11VideoDecoderOutputView *
 gst_d3d11_decoder_get_output_view_from_buffer (GstD3D11Decoder * decoder,
-    GstBuffer * buffer)
+    GstBuffer * buffer, guint8 * index)
 {
   GstMemory *mem;
   GstD3D11Memory *dmem;
@@ -1125,22 +1167,28 @@ gst_d3d11_decoder_get_output_view_from_buffer (GstD3D11Decoder * decoder,
     return NULL;
   }
 
+  if (index) {
+    if (decoder->use_array_of_texture) {
+      guint8 id;
+      gpointer val = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
+          gst_d3d11_decoder_view_id_quark ());
+      if (!val) {
+        GST_ERROR_OBJECT (decoder, "memory has no qdata");
+        return NULL;
+      }
+
+      id = (guint8) GPOINTER_TO_UINT (val);
+      g_assert (id < 128);
+
+      *index = (id - 1);
+    } else {
+      *index = gst_d3d11_memory_get_subresource_index (dmem);
+    }
+  }
+
   return view;
 }
 
-guint8
-gst_d3d11_decoder_get_output_view_index (ID3D11VideoDecoderOutputView *
-    view_handle)
-{
-  D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC view_desc;
-
-  g_return_val_if_fail (view_handle != NULL, 0xff);
-
-  view_handle->GetDesc (&view_desc);
-
-  return view_desc.Texture2D.ArraySlice;
-}
-
 static gboolean
 copy_to_system (GstD3D11Decoder * self, GstVideoInfo * info, gint display_width,
     gint display_height, GstBuffer * decoder_buffer, GstBuffer * output)
@@ -1551,7 +1599,13 @@ gboolean
 gst_d3d11_decoder_can_direct_render (GstD3D11Decoder * decoder,
     GstBuffer * view_buffer, GstMiniObject * picture)
 {
+  g_return_val_if_fail (GST_IS_D3D11_DECODER (decoder), FALSE);
+
+  if (!decoder->can_direct_rendering || !decoder->downstream_supports_d3d11 ||
+      !decoder->use_array_of_texture)
     return FALSE;
+
+  return TRUE;
 }
 
 /* Keep sync with chromium and keep in sorted order.

sys/d3d11/gstd3d11decoder.h

@@ -89,9 +89,8 @@ GstBuffer *       gst_d3d11_decoder_get_output_view_buffer (GstD3D11Decoder * de
                                                             GstVideoDecoder * videodec);
 
 ID3D11VideoDecoderOutputView * gst_d3d11_decoder_get_output_view_from_buffer (GstD3D11Decoder * decoder,
-                                                                              GstBuffer * buffer);
+                                                                              GstBuffer * buffer,
-
+                                                                              guint8 * view_id);
-guint8            gst_d3d11_decoder_get_output_view_index (ID3D11VideoDecoderOutputView * view_handle);
 
 gboolean          gst_d3d11_decoder_process_output      (GstD3D11Decoder * decoder,
                                                          GstVideoInfo * info,

sys/d3d11/gstd3d11h264dec.cpp

@@ -549,7 +549,7 @@ gst_d3d11_h264_dec_get_bitstream_buffer (GstD3D11H264Dec * self)
 
 static ID3D11VideoDecoderOutputView *
 gst_d3d11_h264_dec_get_output_view_from_picture (GstD3D11H264Dec * self,
-    GstH264Picture * picture)
+    GstH264Picture * picture, guint8 * view_id)
 {
   GstBuffer *view_buffer;
   ID3D11VideoDecoderOutputView *view;
@@ -561,7 +561,7 @@ gst_d3d11_h264_dec_get_output_view_from_picture (GstD3D11H264Dec * self,
   }
 
   view = gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
-      view_buffer);
+      view_buffer, view_id);
   if (!view) {
     GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
     return NULL;
@@ -576,6 +576,7 @@ gst_d3d11_h264_dec_start_picture (GstH264Decoder * decoder,
 {
   GstD3D11H264Dec *self = GST_D3D11_H264_DEC (decoder);
   ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
   GArray *dpb_array;
   GstH264SPS *sps;
   GstH264PPS *pps;
@@ -591,7 +592,8 @@ gst_d3d11_h264_dec_start_picture (GstH264Decoder * decoder,
   sps = pps->sequence;
   g_assert (sps != NULL);
 
-  view = gst_d3d11_h264_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_h264_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;
@@ -616,8 +618,7 @@ gst_d3d11_h264_dec_start_picture (GstH264Decoder * decoder,
 
   for (i = dpb_array->len - 1, j = 0; i >= 0 && j < 16; i--) {
     GstH264Picture *other = g_array_index (dpb_array, GstH264Picture *, i);
-    ID3D11VideoDecoderOutputView *other_view;
+    guint8 id = 0xff;
-    gint id = 0xff;
 
     if (!GST_H264_PICTURE_IS_REF (other))
       continue;
@@ -626,11 +627,7 @@ gst_d3d11_h264_dec_start_picture (GstH264Decoder * decoder,
     if (other->second_field)
       continue;
 
-    other_view = gst_d3d11_h264_dec_get_output_view_from_picture (self, other);
+    gst_d3d11_h264_dec_get_output_view_from_picture (self, other, &id);
-
-    if (other_view)
-      id = gst_d3d11_decoder_get_output_view_index (other_view);
-
     self->ref_frame_list[j].Index7Bits = id;
 
     if (GST_H264_PICTURE_IS_LONG_TERM_REF (other)) {
@@ -681,8 +678,7 @@ gst_d3d11_h264_dec_start_picture (GstH264Decoder * decoder,
 
   gst_d3d11_h264_dec_fill_picture_params (self, &slice->header, &pic_params);
 
-  pic_params.CurrPic.Index7Bits =
+  pic_params.CurrPic.Index7Bits = view_id;
-      gst_d3d11_decoder_get_output_view_index (view);
   pic_params.RefPicFlag = GST_H264_PICTURE_IS_REF (picture);
   pic_params.frame_num = picture->frame_num;
 

sys/d3d11/gstd3d11h265dec.cpp

@@ -509,7 +509,7 @@ gst_d3d11_h265_dec_get_bitstream_buffer (GstD3D11H265Dec * self)
 
 static ID3D11VideoDecoderOutputView *
 gst_d3d11_h265_dec_get_output_view_from_picture (GstD3D11H265Dec * self,
-    GstH265Picture * picture)
+    GstH265Picture * picture, guint8 * view_id)
 {
   GstBuffer *view_buffer;
   ID3D11VideoDecoderOutputView *view;
@@ -521,7 +521,7 @@ gst_d3d11_h265_dec_get_output_view_from_picture (GstD3D11H265Dec * self,
   }
 
   view = gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
-      view_buffer);
+      view_buffer, view_id);
   if (!view) {
     GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
     return NULL;
@@ -548,6 +548,7 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
 {
   GstD3D11H265Dec *self = GST_D3D11_H265_DEC (decoder);
   ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
   guint i, j;
   GArray *dpb_array;
   GstH265SPS *sps;
@@ -564,7 +565,8 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
   sps = pps->sps;
   g_assert (sps != NULL);
 
-  view = gst_d3d11_h265_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_h265_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;
@@ -593,19 +595,14 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
 
   for (i = 0; i < dpb_array->len && i < G_N_ELEMENTS (self->ref_pic_list); i++) {
     GstH265Picture *other = g_array_index (dpb_array, GstH265Picture *, i);
-    ID3D11VideoDecoderOutputView *other_view;
+    guint8 id = 0xff;
-    gint id = 0xff;
 
     if (!other->ref) {
       GST_LOG_OBJECT (self, "%dth picture in dpb is not reference, skip", i);
       continue;
     }
 
-    other_view = gst_d3d11_h265_dec_get_output_view_from_picture (self, other);
+    gst_d3d11_h265_dec_get_output_view_from_picture (self, other, &id);
-
-    if (other_view)
-      id = gst_d3d11_decoder_get_output_view_index (other_view);
-
     self->ref_pic_list[i].Index7Bits = id;
     self->ref_pic_list[i].AssociatedFlag = other->long_term;
     self->pic_order_cnt_val_list[i] = other->pic_order_cnt;
@@ -613,7 +610,8 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
 
   for (i = 0, j = 0; i < G_N_ELEMENTS (self->ref_pic_set_st_curr_before); i++) {
     GstH265Picture *other = NULL;
-    gint id = 0xff;
+    guint8 other_view_id = 0xff;
+    guint8 id = 0xff;
 
     while (other == NULL && j < decoder->NumPocStCurrBefore)
       other = decoder->RefPicSetStCurrBefore[j++];
@@ -621,13 +619,11 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
     if (other) {
       ID3D11VideoDecoderOutputView *other_view;
 
-      other_view =
+      other_view = gst_d3d11_h265_dec_get_output_view_from_picture (self,
-          gst_d3d11_h265_dec_get_output_view_from_picture (self, other);
+          other, &other_view_id);
 
-      if (other_view) {
+      if (other_view)
-        id = gst_d3d11_h265_dec_get_ref_index (self,
+        id = gst_d3d11_h265_dec_get_ref_index (self, other_view_id);
-            gst_d3d11_decoder_get_output_view_index (other_view));
-      }
     }
 
     self->ref_pic_set_st_curr_before[i] = id;
@@ -635,7 +631,8 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
 
   for (i = 0, j = 0; i < G_N_ELEMENTS (self->ref_pic_set_st_curr_after); i++) {
     GstH265Picture *other = NULL;
-    gint id = 0xff;
+    guint8 other_view_id = 0xff;
+    guint8 id = 0xff;
 
     while (other == NULL && j < decoder->NumPocStCurrAfter)
       other = decoder->RefPicSetStCurrAfter[j++];
@@ -643,13 +640,11 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
     if (other) {
       ID3D11VideoDecoderOutputView *other_view;
 
-      other_view =
+      other_view = gst_d3d11_h265_dec_get_output_view_from_picture (self,
-          gst_d3d11_h265_dec_get_output_view_from_picture (self, other);
+          other, &other_view_id);
 
-      if (other_view) {
+      if (other_view)
-        id = gst_d3d11_h265_dec_get_ref_index (self,
+        id = gst_d3d11_h265_dec_get_ref_index (self, other_view_id);
-            gst_d3d11_decoder_get_output_view_index (other_view));
-      }
     }
 
     self->ref_pic_set_st_curr_after[i] = id;
@@ -657,7 +652,8 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
 
   for (i = 0, j = 0; i < G_N_ELEMENTS (self->ref_pic_set_lt_curr); i++) {
     GstH265Picture *other = NULL;
-    gint id = 0xff;
+    guint8 other_view_id = 0xff;
+    guint8 id = 0xff;
 
     while (other == NULL && j < decoder->NumPocLtCurr)
       other = decoder->RefPicSetLtCurr[j++];
@@ -665,29 +661,19 @@ gst_d3d11_h265_dec_start_picture (GstH265Decoder * decoder,
     if (other) {
       ID3D11VideoDecoderOutputView *other_view;
 
-      other_view =
+      other_view = gst_d3d11_h265_dec_get_output_view_from_picture (self,
-          gst_d3d11_h265_dec_get_output_view_from_picture (self, other);
+          other, &other_view_id);
 
-      if (other_view) {
+      if (other_view)
-        id = gst_d3d11_h265_dec_get_ref_index (self,
+        id = gst_d3d11_h265_dec_get_ref_index (self, other_view_id);
-            gst_d3d11_decoder_get_output_view_index (other_view));
-      }
     }
 
     self->ref_pic_set_lt_curr[i] = id;
   }
 
-  view = gst_d3d11_h265_dec_get_output_view_from_picture (self, picture);
-
-  if (!view) {
-    GST_ERROR_OBJECT (self, "current picture does not have output view");
-    return FALSE;
-  }
-
   gst_d3d11_h265_dec_fill_picture_params (self, &slice->header, &pic_params);
 
-  pic_params.CurrPic.Index7Bits =
+  pic_params.CurrPic.Index7Bits = view_id;
-      gst_d3d11_decoder_get_output_view_index (view);
   pic_params.IrapPicFlag = GST_H265_IS_NAL_TYPE_IRAP (slice->nalu.type);
   pic_params.IdrPicFlag = GST_H265_IS_NAL_TYPE_IDR (slice->nalu.type);
   pic_params.IntraPicFlag = GST_H265_IS_NAL_TYPE_IRAP (slice->nalu.type);

sys/d3d11/gstd3d11mpeg2dec.cpp

@@ -519,7 +519,7 @@ gst_d3d11_mpeg2_dec_get_bitstream_buffer (GstD3D11Mpeg2Dec * self)
 
 static ID3D11VideoDecoderOutputView *
 gst_d3d11_mpeg2_dec_get_output_view_from_picture (GstD3D11Mpeg2Dec * self,
-    GstMpeg2Picture * picture)
+    GstMpeg2Picture * picture, guint8 * view_id)
 {
   GstBuffer *view_buffer;
   ID3D11VideoDecoderOutputView *view;
@@ -535,7 +535,7 @@ gst_d3d11_mpeg2_dec_get_output_view_from_picture (GstD3D11Mpeg2Dec * self,
 
   view =
       gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
-      view_buffer);
+      view_buffer, view_id);
   if (!view) {
     GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
     return NULL;
@@ -577,6 +577,8 @@ gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
   GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
   ID3D11VideoDecoderOutputView *view;
   ID3D11VideoDecoderOutputView *other_view;
+  guint8 view_id = 0xff;
+  guint8 other_view_id = 0xff;
   DXVA_PictureParameters pic_params = { 0, };
   DXVA_QmatrixData iq_matrix = { 0, };
   guint d3d11_buffer_size = 0;
@@ -584,7 +586,8 @@ gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
   gboolean is_field =
       picture->structure != GST_MPEG_VIDEO_PICTURE_STRUCTURE_FRAME;
 
-  view = gst_d3d11_mpeg2_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_mpeg2_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;
@@ -597,8 +600,7 @@ gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
   }
 
   /* Fill DXVA_PictureParameters */
-  pic_params.wDecodedPictureIndex =
+  pic_params.wDecodedPictureIndex = view_id;
-      gst_d3d11_decoder_get_output_view_index (view);
   pic_params.wForwardRefPictureIndex = 0xffff;
   pic_params.wBackwardRefPictureIndex = 0xffff;
 
@@ -607,10 +609,9 @@ gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
       if (next_picture) {
         other_view =
             gst_d3d11_mpeg2_dec_get_output_view_from_picture (self,
-            next_picture);
+            next_picture, &other_view_id);
         if (other_view)
-          pic_params.wBackwardRefPictureIndex =
+          pic_params.wBackwardRefPictureIndex = other_view_id;
-              gst_d3d11_decoder_get_output_view_index (other_view);
       }
     }
       /* fall-through */
@@ -618,10 +619,9 @@ gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
       if (prev_picture) {
         other_view =
             gst_d3d11_mpeg2_dec_get_output_view_from_picture (self,
-            prev_picture);
+            prev_picture, &other_view_id);
         if (other_view)
-          pic_params.wForwardRefPictureIndex =
+          pic_params.wForwardRefPictureIndex = other_view_id;
-              gst_d3d11_decoder_get_output_view_index (other_view);
       }
     }
     default:

sys/d3d11/gstd3d11vp8dec.cpp

@@ -451,7 +451,7 @@ error:
 
 static ID3D11VideoDecoderOutputView *
 gst_d3d11_vp8_dec_get_output_view_from_picture (GstD3D11Vp8Dec * self,
-    GstVp8Picture * picture)
+    GstVp8Picture * picture, guint8 * view_id)
 {
   GstBuffer *view_buffer;
   ID3D11VideoDecoderOutputView *view;
@@ -464,7 +464,7 @@ gst_d3d11_vp8_dec_get_output_view_from_picture (GstD3D11Vp8Dec * self,
 
   view =
       gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
-      view_buffer);
+      view_buffer, view_id);
   if (!view) {
     GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
     return NULL;
@@ -480,7 +480,7 @@ gst_d3d11_vp8_dec_start_picture (GstVp8Decoder * decoder,
   GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
   ID3D11VideoDecoderOutputView *view;
 
-  view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, picture, NULL);
   if (!view) {
     GST_ERROR_OBJECT (self, "current picture does not have output view handle");
     return FALSE;
@@ -556,45 +556,43 @@ gst_d3d11_vp8_dec_copy_reference_frames (GstD3D11Vp8Dec * self,
 {
   GstVp8Decoder *decoder = GST_VP8_DECODER (self);
   ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
 
   if (decoder->alt_ref_picture) {
     view = gst_d3d11_vp8_dec_get_output_view_from_picture (self,
-        decoder->alt_ref_picture);
+        decoder->alt_ref_picture, &view_id);
     if (!view) {
       GST_ERROR_OBJECT (self, "picture does not have output view handle");
       return;
     }
 
-    params->alt_fb_idx.Index7Bits =
+    params->alt_fb_idx.Index7Bits = view_id;
-        gst_d3d11_decoder_get_output_view_index (view);
   } else {
     params->alt_fb_idx.bPicEntry = 0xff;
   }
 
   if (decoder->golden_ref_picture) {
     view = gst_d3d11_vp8_dec_get_output_view_from_picture (self,
-        decoder->golden_ref_picture);
+        decoder->golden_ref_picture, &view_id);
     if (!view) {
       GST_ERROR_OBJECT (self, "picture does not have output view handle");
       return;
     }
 
-    params->gld_fb_idx.Index7Bits =
+    params->gld_fb_idx.Index7Bits = view_id;
-        gst_d3d11_decoder_get_output_view_index (view);
   } else {
     params->gld_fb_idx.bPicEntry = 0xff;
   }
 
   if (decoder->last_picture) {
     view = gst_d3d11_vp8_dec_get_output_view_from_picture (self,
-        decoder->last_picture);
+        decoder->last_picture, &view_id);
     if (!view) {
       GST_ERROR_OBJECT (self, "picture does not have output view handle");
       return;
     }
 
-    params->lst_fb_idx.Index7Bits =
+    params->lst_fb_idx.Index7Bits = view_id;
-        gst_d3d11_decoder_get_output_view_index (view);
   } else {
     params->lst_fb_idx.bPicEntry = 0xff;
   }
@@ -811,9 +809,11 @@ gst_d3d11_vp8_dec_decode_picture (GstVp8Decoder * decoder,
   GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
   DXVA_PicParams_VP8 pic_params = { 0, };
   ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
   const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
 
-  view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_vp8_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;
@@ -822,8 +822,7 @@ gst_d3d11_vp8_dec_decode_picture (GstVp8Decoder * decoder,
   pic_params.first_part_size = frame_hdr->first_part_size;
   pic_params.width = self->width;
   pic_params.height = self->height;
-  pic_params.CurrPic.Index7Bits =
+  pic_params.CurrPic.Index7Bits = view_id;
-      gst_d3d11_decoder_get_output_view_index (view);
   pic_params.StatusReportFeedbackNumber = 1;
 
   gst_d3d11_vp8_dec_copy_frame_params (self, picture, parser, &pic_params);

sys/d3d11/gstd3d11vp9dec.cpp

@@ -542,7 +542,7 @@ error:
 
 static ID3D11VideoDecoderOutputView *
 gst_d3d11_vp9_dec_get_output_view_from_picture (GstD3D11Vp9Dec * self,
-    GstVp9Picture * picture)
+    GstVp9Picture * picture, guint8 * view_id)
 {
   GstBuffer *view_buffer;
   ID3D11VideoDecoderOutputView *view;
@@ -555,7 +555,7 @@ gst_d3d11_vp9_dec_get_output_view_from_picture (GstD3D11Vp9Dec * self,
 
   view =
       gst_d3d11_decoder_get_output_view_from_buffer (self->d3d11_decoder,
-      view_buffer);
+      view_buffer, view_id);
   if (!view) {
     GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
     return NULL;
@@ -571,7 +571,7 @@ gst_d3d11_vp9_dec_start_picture (GstVp9Decoder * decoder,
   GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder);
   ID3D11VideoDecoderOutputView *view;
 
-  view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, picture, NULL);
   if (!view) {
     GST_ERROR_OBJECT (self, "current picture does not have output view handle");
     return FALSE;
@@ -669,15 +669,16 @@ gst_d3d11_vp9_dec_copy_reference_frames (GstD3D11Vp9Dec * self,
     if (dpb->pic_list[i]) {
       GstVp9Picture *other_pic = dpb->pic_list[i];
       ID3D11VideoDecoderOutputView *view;
+      guint8 view_id = 0xff;
 
-      view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, other_pic);
+      view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, other_pic,
+          &view_id);
       if (!view) {
         GST_ERROR_OBJECT (self, "picture does not have output view handle");
         return;
       }
 
-      params->ref_frame_map[i].Index7Bits =
+      params->ref_frame_map[i].Index7Bits = view_id;
-          gst_d3d11_decoder_get_output_view_index (view);
       params->ref_frame_coded_width[i] = picture->frame_hdr.width;
       params->ref_frame_coded_height[i] = picture->frame_hdr.height;
     } else {
@@ -1034,15 +1035,16 @@ gst_d3d11_vp9_dec_decode_picture (GstVp9Decoder * decoder,
   GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder);
   DXVA_PicParams_VP9 pic_params = { 0, };
   ID3D11VideoDecoderOutputView *view;
+  guint8 view_id = 0xff;
 
-  view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, picture);
+  view = gst_d3d11_vp9_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;
   }
 
-  pic_params.CurrPic.Index7Bits =
+  pic_params.CurrPic.Index7Bits = view_id;
-      gst_d3d11_decoder_get_output_view_index (view);
   pic_params.uncompressed_header_size_byte_aligned =
       picture->frame_hdr.frame_header_length_in_bytes;
   pic_params.first_partition_size = picture->frame_hdr.first_partition_size;