subprojects/gst-plugins-bad/sys/va/gstvaav1dec.c

   1 /* GStreamer
   2  *  Copyright (C) 2020 Intel Corporation
   3  *     Author: He Junyan <junyan.he@intel.com>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  * License along with this library; if not, write to the0
  17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 /**
  22  * SECTION:element-vaav1dec
  23  * @title: vaav1dec
  24  * @short_description: A VA-API based AV1 video decoder
  25  *
  26  * vaav1dec decodes AV1 bitstreams to VA surfaces using the
  27  * installed and chosen [VA-API](https://01.org/linuxmedia/vaapi)
  28  * driver.
  29  *
  30  * The decoding surfaces can be mapped onto main memory as video
  31  * frames.
  32  *
  33  * ## Example launch line
  34  * ```
  35  * gst-launch-1.0 filesrc location=sample.av1 ! ivfparse ! av1parse ! vaav1dec ! autovideosink
  36  * ```
  37  *
  38  * Since: 1.20
  39  *
  40  */
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #endif
  45
  46 #include <gst/va/gstva.h>
  47
  48 #include "gstvaav1dec.h"
  49 #include "gstvabasedec.h"
  50
  51 GST_DEBUG_CATEGORY_STATIC (gst_va_av1dec_debug);
  52 #ifndef GST_DISABLE_GST_DEBUG
  53 #define GST_CAT_DEFAULT gst_va_av1dec_debug
  54 #else
  55 #define GST_CAT_DEFAULT NULL
  56 #endif
  57
  58 #define GST_VA_AV1_DEC(obj)           ((GstVaAV1Dec *) obj)
  59 #define GST_VA_AV1_DEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), G_TYPE_FROM_INSTANCE (obj), GstVaAV1DecClass))
  60 #define GST_VA_AV1_DEC_CLASS(klass)   ((GstVaAV1DecClass *) klass)
  61
  62 typedef struct _GstVaAV1Dec GstVaAV1Dec;
  63 typedef struct _GstVaAV1DecClass GstVaAV1DecClass;
  64
  65 struct _GstVaAV1DecClass
  66 {
  67   GstVaBaseDecClass parent_class;
  68 };
  69
  70 struct _GstVaAV1Dec
  71 {
  72   GstVaBaseDec parent;
  73
  74   GstFlowReturn last_ret;
  75
  76   GstAV1SequenceHeaderOBU seq;
  77   gint max_width;
  78   gint max_height;
  79   GstVideoFormat preferred_format;
  80   /* Used for layers not output. */
  81   GstBufferPool *internal_pool;
  82 };
  83
  84 static GstElementClass *parent_class = NULL;
  85
  86 /* *INDENT-OFF* */
  87 static const gchar *src_caps_str =
  88     GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_VA,
  89         "{ NV12, P010_10LE }") " ;"
  90     GST_VIDEO_CAPS_MAKE ("{ NV12, P010_10LE }");
  91 /* *INDENT-ON* */
  92
  93 static const gchar *sink_caps_str = "video/x-av1";
  94
  95 static gboolean
  96 gst_va_av1_dec_negotiate (GstVideoDecoder * decoder)
  97 {
  98   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
  99   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 100   GstAV1Decoder *av1dec = GST_AV1_DECODER (decoder);
 101   GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
 102   GstCapsFeatures *capsfeatures = NULL;
 103
 104   /* Ignore downstream renegotiation request. */
 105   if (!base->need_negotiation)
 106     return TRUE;
 107
 108   base->need_negotiation = FALSE;
 109
 110   /* Do not re-create the context if only the frame size changes */
 111   if (!gst_va_decoder_config_is_equal (base->decoder, base->profile,
 112           base->rt_format, self->max_width, self->max_height)) {
 113     if (gst_va_decoder_is_open (base->decoder)
 114         && !gst_va_decoder_close (base->decoder))
 115       return FALSE;
 116
 117     if (!gst_va_decoder_open (base->decoder, base->profile, base->rt_format))
 118       return FALSE;
 119
 120     if (!gst_va_decoder_set_frame_size (base->decoder, self->max_width,
 121             self->max_height))
 122       return FALSE;
 123   }
 124
 125   if (base->output_state)
 126     gst_video_codec_state_unref (base->output_state);
 127
 128   gst_va_base_dec_get_preferred_format_and_caps_features (base, &format,
 129       &capsfeatures);
 130   if (format == GST_VIDEO_FORMAT_UNKNOWN)
 131     return FALSE;
 132
 133   if (self->preferred_format != GST_VIDEO_FORMAT_UNKNOWN &&
 134       self->preferred_format != format) {
 135     GST_WARNING_OBJECT (self, "The preferred_format is different from"
 136         " the last result");
 137     return FALSE;
 138   }
 139   self->preferred_format = format;
 140
 141   base->output_state = gst_video_decoder_set_output_state (decoder, format,
 142       base->width, base->height, av1dec->input_state);
 143
 144   base->output_state->caps = gst_video_info_to_caps (&base->output_state->info);
 145   if (capsfeatures)
 146     gst_caps_set_features_simple (base->output_state->caps, capsfeatures);
 147
 148   GST_INFO_OBJECT (self, "Negotiated caps %" GST_PTR_FORMAT,
 149       base->output_state->caps);
 150
 151   return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
 152 }
 153
 154 static GstCaps *
 155 _complete_sink_caps (GstCaps * sinkcaps)
 156 {
 157   GstCaps *caps = gst_caps_copy (sinkcaps);
 158   GValue val = G_VALUE_INIT;
 159
 160   g_value_init (&val, G_TYPE_STRING);
 161   g_value_set_string (&val, "frame");
 162   gst_caps_set_value (caps, "alignment", &val);
 163   g_value_unset (&val);
 164
 165   return caps;
 166 }
 167
 168 static VAProfile
 169 _get_profile (GstVaAV1Dec * self, const GstAV1SequenceHeaderOBU * seq_hdr)
 170 {
 171   GstVaBaseDec *base = GST_VA_BASE_DEC (self);
 172   VAProfile profile = VAProfileNone;
 173
 174   switch (seq_hdr->seq_profile) {
 175     case GST_AV1_PROFILE_0:
 176       profile = VAProfileAV1Profile0;
 177       break;
 178     case GST_AV1_PROFILE_1:
 179       profile = VAProfileAV1Profile1;
 180       break;
 181     default:
 182       GST_ERROR_OBJECT (self, "Unsupported av1 profile value %d",
 183           seq_hdr->seq_profile);
 184       return VAProfileNone;
 185   }
 186
 187   if (!gst_va_decoder_has_profile (base->decoder, profile)) {
 188     GST_ERROR_OBJECT (self, "Profile %s is not supported by HW",
 189         gst_va_profile_name (profile));
 190     return VAProfileNone;
 191   }
 192
 193   return profile;
 194 }
 195
 196 static guint
 197 _get_rtformat (GstVaAV1Dec * self, VAProfile profile,
 198     const GstAV1SequenceHeaderOBU * seq_header)
 199 {
 200   /* 6.4.1:
 201      seq_profile  Bit depth  Monochrome support  Chroma subsampling
 202      0            8 or 10    Yes                 YUV 4:2:0
 203      1            8 or 10    No                  YUV 4:4:4
 204      2            8 or 10    Yes                 YUV 4:2:2
 205      2            12         Yes                 YUV 4:2:0,YUV 4:2:2,YUV 4:4:4
 206    */
 207
 208   /* TODO: consider Monochrome case. Just return 4:2:0 for Monochrome now. */
 209   switch (profile) {
 210     case VAProfileAV1Profile0:
 211       if (seq_header->bit_depth == 8) {
 212         return VA_RT_FORMAT_YUV420;
 213       } else if (seq_header->bit_depth == 10) {
 214         return VA_RT_FORMAT_YUV420_10;
 215       }
 216       break;
 217     case VAProfileAV1Profile1:
 218       if (seq_header->bit_depth == 8) {
 219         return VA_RT_FORMAT_YUV444;
 220       } else if (seq_header->bit_depth == 10) {
 221         return VA_RT_FORMAT_YUV444_10;
 222       }
 223       break;
 224     default:
 225       break;
 226   }
 227
 228   GST_ERROR_OBJECT (self, "Fail to find rtformat for profile:%s, bit_depth:%d",
 229       gst_va_profile_name (profile), seq_header->bit_depth);
 230   return 0;
 231 }
 232
 233 static GstCaps *
 234 gst_va_av1_dec_getcaps (GstVideoDecoder * decoder, GstCaps * filter)
 235 {
 236   GstCaps *sinkcaps, *caps = NULL, *tmp;
 237   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 238
 239   if (base->decoder)
 240     caps = gst_va_decoder_get_sinkpad_caps (base->decoder);
 241
 242   if (caps) {
 243     sinkcaps = _complete_sink_caps (caps);
 244     gst_caps_unref (caps);
 245     if (filter) {
 246       tmp = gst_caps_intersect_full (filter, sinkcaps,
 247           GST_CAPS_INTERSECT_FIRST);
 248       gst_caps_unref (sinkcaps);
 249       caps = tmp;
 250     } else {
 251       caps = sinkcaps;
 252     }
 253     GST_LOG_OBJECT (base, "Returning caps %" GST_PTR_FORMAT, caps);
 254   } else if (!caps) {
 255     caps = gst_video_decoder_proxy_getcaps (decoder, NULL, filter);
 256   }
 257
 258   return caps;
 259 }
 260
 261 static void
 262 _clear_internal_pool (GstVaAV1Dec * self)
 263 {
 264   if (self->internal_pool)
 265     gst_buffer_pool_set_active (self->internal_pool, FALSE);
 266
 267   gst_clear_object (&self->internal_pool);
 268 }
 269
 270 static GstBufferPool *
 271 _create_internal_pool (GstVaAV1Dec * self, gint width, gint height)
 272 {
 273   GstVaBaseDec *base = GST_VA_BASE_DEC (self);
 274   GstVideoInfo info;
 275   GArray *surface_formats;
 276   GstAllocator *allocator;
 277   GstCaps *caps = NULL;
 278   GstBufferPool *pool;
 279   GstAllocationParams params = { 0, };
 280
 281   gst_allocation_params_init (&params);
 282
 283   /* We may come here before the negotiation, make sure all pools
 284      use the same video format. */
 285   if (self->preferred_format == GST_VIDEO_FORMAT_UNKNOWN) {
 286     GstVideoFormat format;
 287
 288     gst_va_base_dec_get_preferred_format_and_caps_features (base,
 289         &format, NULL);
 290     if (format == GST_VIDEO_FORMAT_UNKNOWN) {
 291       GST_WARNING_OBJECT (self, "Failed to get format for internal pool");
 292       return NULL;
 293     }
 294
 295     self->preferred_format = format;
 296   }
 297
 298   gst_video_info_set_format (&info, self->preferred_format, width, height);
 299
 300   caps = gst_video_info_to_caps (&info);
 301   if (caps == NULL) {
 302     GST_WARNING_OBJECT (self, "Failed to create caps for internal pool");
 303     return NULL;
 304   }
 305
 306   gst_caps_set_features_simple (caps,
 307       gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_VA));
 308
 309   surface_formats = gst_va_decoder_get_surface_formats (base->decoder);
 310   allocator = gst_va_allocator_new (base->display, surface_formats);
 311
 312   pool = gst_va_pool_new_with_config (caps, GST_VIDEO_INFO_SIZE (&info),
 313       1, 0, VA_SURFACE_ATTRIB_USAGE_HINT_DECODER, GST_VA_FEATURE_AUTO,
 314       allocator, &params);
 315   if (!pool) {
 316     GST_WARNING_OBJECT (self, "Failed to create internal pool");
 317     gst_object_unref (allocator);
 318     gst_clear_caps (&caps);
 319     return NULL;
 320   }
 321
 322   gst_object_unref (allocator);
 323
 324   gst_buffer_pool_set_active (pool, TRUE);
 325
 326   return pool;
 327 }
 328
 329 static GstFlowReturn
 330 gst_va_av1_dec_new_sequence (GstAV1Decoder * decoder,
 331     const GstAV1SequenceHeaderOBU * seq_hdr, gint max_dpb_size)
 332 {
 333   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 334   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 335   VAProfile profile;
 336   guint rt_format;
 337
 338   GST_LOG_OBJECT (self, "new sequence");
 339
 340   profile = _get_profile (self, seq_hdr);
 341   if (profile == VAProfileNone)
 342     return GST_FLOW_NOT_NEGOTIATED;
 343
 344   rt_format = _get_rtformat (self, profile, seq_hdr);
 345   if (!rt_format)
 346     return GST_FLOW_NOT_NEGOTIATED;
 347
 348   self->seq = *seq_hdr;
 349
 350   if (!gst_va_decoder_config_is_equal (base->decoder, profile,
 351           rt_format, seq_hdr->max_frame_width_minus_1 + 1,
 352           seq_hdr->max_frame_height_minus_1 + 1)) {
 353     _clear_internal_pool (self);
 354     self->preferred_format = GST_VIDEO_FORMAT_UNKNOWN;
 355
 356     base->profile = profile;
 357     base->rt_format = rt_format;
 358     self->max_width = seq_hdr->max_frame_width_minus_1 + 1;
 359     self->max_height = seq_hdr->max_frame_height_minus_1 + 1;
 360     base->need_negotiation = TRUE;
 361
 362     base->min_buffers = 7 + 4;  /* dpb size + scratch surfaces */
 363
 364     /* May be changed by frame header */
 365     base->width = self->max_width;
 366     base->height = self->max_height;
 367     base->need_valign = FALSE;
 368   }
 369
 370   return GST_FLOW_OK;
 371 }
 372
 373 static GstFlowReturn
 374 gst_va_av1_dec_new_picture (GstAV1Decoder * decoder,
 375     GstVideoCodecFrame * frame, GstAV1Picture * picture)
 376 {
 377   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 378   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 379   GstVaDecodePicture *pic;
 380   GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder);
 381   GstAV1FrameHeaderOBU *frame_hdr = &picture->frame_hdr;
 382
 383   /* Only output the highest spatial layer. For non output pictures,
 384      we just use internal pool, then no negotiation needed. */
 385   if (picture->spatial_id < decoder->highest_spatial_layer) {
 386     if (!self->internal_pool) {
 387       self->internal_pool =
 388           _create_internal_pool (self, self->max_width, self->max_height);
 389       if (!self->internal_pool)
 390         return GST_FLOW_ERROR;
 391     }
 392   } else {
 393     if (frame_hdr->upscaled_width != base->width
 394         || frame_hdr->frame_height != base->height) {
 395       base->width = frame_hdr->upscaled_width;
 396       base->height = frame_hdr->frame_height;
 397
 398       if (base->width < self->max_width || base->height < self->max_height) {
 399         base->need_valign = TRUE;
 400         /* *INDENT-OFF* */
 401         base->valign = (GstVideoAlignment){
 402           .padding_bottom = self->max_height - base->height,
 403           .padding_right = self->max_width - base->width,
 404         };
 405         /* *INDENT-ON* */
 406       }
 407
 408       base->need_negotiation = TRUE;
 409     }
 410   }
 411
 412   if (base->need_negotiation) {
 413     if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
 414       GST_ERROR_OBJECT (self, "Failed to negotiate with downstream");
 415       return GST_FLOW_NOT_NEGOTIATED;
 416     }
 417   }
 418
 419   if (picture->spatial_id < decoder->highest_spatial_layer) {
 420     self->last_ret = gst_buffer_pool_acquire_buffer (self->internal_pool,
 421         &frame->output_buffer, NULL);
 422     if (self->last_ret != GST_FLOW_OK) {
 423       GST_WARNING_OBJECT (self,
 424           "Failed to allocated output buffer from internal pool, return %s",
 425           gst_flow_get_name (self->last_ret));
 426       return self->last_ret;
 427     }
 428   } else {
 429     self->last_ret = gst_video_decoder_allocate_output_frame (vdec, frame);
 430     if (self->last_ret != GST_FLOW_OK) {
 431       GST_WARNING_OBJECT (self,
 432           "Failed to allocated output buffer, return %s",
 433           gst_flow_get_name (self->last_ret));
 434       return self->last_ret;
 435     }
 436   }
 437
 438   if (picture->apply_grain) {
 439     if (!gst_va_buffer_create_aux_surface (frame->output_buffer)) {
 440       GST_WARNING_OBJECT (self,
 441           "Failed to allocated aux surface for buffer %p",
 442           frame->output_buffer);
 443       return GST_FLOW_ERROR;
 444     }
 445   }
 446
 447   pic = gst_va_decode_picture_new (base->decoder, frame->output_buffer);
 448
 449   gst_av1_picture_set_user_data (picture, pic,
 450       (GDestroyNotify) gst_va_decode_picture_free);
 451
 452   if (picture->apply_grain) {
 453     GST_LOG_OBJECT (self, "New va decode picture %p - %#x(aux: %#x)", pic,
 454         gst_va_decode_picture_get_surface (pic),
 455         gst_va_decode_picture_get_aux_surface (pic));
 456   } else {
 457     GST_LOG_OBJECT (self, "New va decode picture %p - %#x", pic,
 458         gst_va_decode_picture_get_surface (pic));
 459   }
 460
 461   return GST_FLOW_OK;
 462 }
 463
 464 static GstAV1Picture *
 465 gst_va_av1_dec_duplicate_picture (GstAV1Decoder * decoder,
 466     GstVideoCodecFrame * frame, GstAV1Picture * picture)
 467 {
 468   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 469   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 470   GstVaDecodePicture *pic;
 471   GstVaDecodePicture *new_pic;
 472   GstAV1Picture *new_picture;
 473
 474   pic = gst_av1_picture_get_user_data (picture);
 475   if (!pic) {
 476     GST_ERROR_OBJECT (self, "Parent picture does not have a va picture");
 477     return NULL;
 478   }
 479
 480   new_picture = gst_av1_picture_new ();
 481   g_assert (pic->gstbuffer);
 482   new_pic = gst_va_decode_picture_new (base->decoder, pic->gstbuffer);
 483
 484   GST_LOG_OBJECT (self, "Duplicate output with buffer %" GST_PTR_FORMAT
 485       " (surface %#x)", pic, gst_va_decode_picture_get_surface (pic));
 486
 487   gst_av1_picture_set_user_data (new_picture, new_pic,
 488       (GDestroyNotify) gst_va_decode_picture_free);
 489
 490   return new_picture;
 491 }
 492
 493 static void
 494 _setup_segment_info (VADecPictureParameterBufferAV1 * pic_param,
 495     GstAV1FrameHeaderOBU * frame_header)
 496 {
 497   guint i, j;
 498   uint8_t feature_mask;
 499
 500   for (i = 0; i < GST_AV1_MAX_SEGMENTS; i++)
 501     for (j = 0; j < GST_AV1_SEG_LVL_MAX; j++)
 502       pic_param->seg_info.feature_data[i][j] =
 503           frame_header->segmentation_params.feature_data[i][j];
 504
 505   for (i = 0; i < GST_AV1_MAX_SEGMENTS; i++) {
 506     feature_mask = 0;
 507     for (j = 0; j < GST_AV1_SEG_LVL_MAX; j++) {
 508       if (frame_header->segmentation_params.feature_enabled[i][j])
 509         feature_mask |= 1 << j;
 510     }
 511     pic_param->seg_info.feature_mask[i] = feature_mask;
 512   }
 513 }
 514
 515 static void
 516 _setup_film_grain_info (VADecPictureParameterBufferAV1 * pic_param,
 517     GstAV1FrameHeaderOBU * frame_header)
 518 {
 519   guint i;
 520
 521   if (!frame_header->film_grain_params.apply_grain)
 522     return;
 523
 524   pic_param->film_grain_info.num_y_points =
 525       frame_header->film_grain_params.num_y_points;
 526   for (i = 0; i < frame_header->film_grain_params.num_y_points; i++) {
 527     pic_param->film_grain_info.point_y_value[i] =
 528         frame_header->film_grain_params.point_y_value[i];
 529     pic_param->film_grain_info.point_y_scaling[i] =
 530         frame_header->film_grain_params.point_y_scaling[i];
 531   }
 532
 533   pic_param->film_grain_info.num_cb_points =
 534       frame_header->film_grain_params.num_cb_points;
 535   for (i = 0; i < frame_header->film_grain_params.num_cb_points; i++) {
 536     pic_param->film_grain_info.point_cb_value[i] =
 537         frame_header->film_grain_params.point_cb_value[i];
 538     pic_param->film_grain_info.point_cb_scaling[i] =
 539         frame_header->film_grain_params.point_cb_scaling[i];
 540   }
 541
 542   pic_param->film_grain_info.num_cr_points =
 543       frame_header->film_grain_params.num_cr_points;
 544   for (i = 0; i < frame_header->film_grain_params.num_cr_points; i++) {
 545     pic_param->film_grain_info.point_cr_value[i] =
 546         frame_header->film_grain_params.point_cr_value[i];
 547     pic_param->film_grain_info.point_cr_scaling[i] =
 548         frame_header->film_grain_params.point_cr_scaling[i];
 549   }
 550
 551
 552   if (pic_param->film_grain_info.num_y_points) {
 553     for (i = 0; i < 24; i++) {
 554       pic_param->film_grain_info.ar_coeffs_y[i] =
 555           frame_header->film_grain_params.ar_coeffs_y_plus_128[i] - 128;
 556     }
 557   }
 558   if (frame_header->film_grain_params.chroma_scaling_from_luma
 559       || pic_param->film_grain_info.num_cb_points) {
 560     for (i = 0; i < GST_AV1_MAX_NUM_POS_LUMA; i++) {
 561       pic_param->film_grain_info.ar_coeffs_cb[i] =
 562           frame_header->film_grain_params.ar_coeffs_cb_plus_128[i] - 128;
 563     }
 564   }
 565   if (frame_header->film_grain_params.chroma_scaling_from_luma
 566       || pic_param->film_grain_info.num_cr_points) {
 567     for (i = 0; i < GST_AV1_MAX_NUM_POS_LUMA; i++) {
 568       pic_param->film_grain_info.ar_coeffs_cr[i] =
 569           frame_header->film_grain_params.ar_coeffs_cr_plus_128[i] - 128;
 570     }
 571   }
 572 }
 573
 574 static void
 575 _setup_loop_filter_info (VADecPictureParameterBufferAV1 * pic_param,
 576     GstAV1FrameHeaderOBU * frame_header)
 577 {
 578   guint i;
 579
 580   pic_param->filter_level[0] =
 581       frame_header->loop_filter_params.loop_filter_level[0];
 582   pic_param->filter_level[1] =
 583       frame_header->loop_filter_params.loop_filter_level[1];
 584   pic_param->filter_level_u =
 585       frame_header->loop_filter_params.loop_filter_level[2];
 586   pic_param->filter_level_v =
 587       frame_header->loop_filter_params.loop_filter_level[3];
 588
 589   for (i = 0; i < GST_AV1_TOTAL_REFS_PER_FRAME; i++)
 590     pic_param->ref_deltas[i] =
 591         frame_header->loop_filter_params.loop_filter_ref_deltas[i];
 592   for (i = 0; i < 2; i++)
 593     pic_param->mode_deltas[i] =
 594         frame_header->loop_filter_params.loop_filter_mode_deltas[i];
 595 }
 596
 597 static void
 598 _setup_quantization_info (VADecPictureParameterBufferAV1 * pic_param,
 599     GstAV1FrameHeaderOBU * frame_header)
 600 {
 601   pic_param->qmatrix_fields.bits.using_qmatrix =
 602       frame_header->quantization_params.using_qmatrix;
 603   if (frame_header->quantization_params.using_qmatrix) {
 604     pic_param->qmatrix_fields.bits.qm_y =
 605         frame_header->quantization_params.qm_y;
 606     pic_param->qmatrix_fields.bits.qm_u =
 607         frame_header->quantization_params.qm_u;
 608     pic_param->qmatrix_fields.bits.qm_v =
 609         frame_header->quantization_params.qm_v;
 610   } else {
 611     pic_param->qmatrix_fields.bits.qm_y = 0;
 612     pic_param->qmatrix_fields.bits.qm_u = 0;
 613     pic_param->qmatrix_fields.bits.qm_v = 0;
 614   }
 615 }
 616
 617 static void
 618 _setup_cdef_info (VADecPictureParameterBufferAV1 * pic_param,
 619     GstAV1FrameHeaderOBU * frame_header, guint8 num_planes)
 620 {
 621   guint8 sec_strength;
 622   guint i;
 623
 624   pic_param->cdef_damping_minus_3 = frame_header->cdef_params.cdef_damping - 3;
 625   pic_param->cdef_bits = frame_header->cdef_params.cdef_bits;
 626   for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
 627     sec_strength = frame_header->cdef_params.cdef_y_sec_strength[i];
 628     g_assert (sec_strength <= 4);
 629     /* may need to minus 1 in order to merge with primary value. */
 630     if (sec_strength == 4)
 631       sec_strength--;
 632
 633     pic_param->cdef_y_strengths[i] =
 634         ((frame_header->cdef_params.cdef_y_pri_strength[i] & 0xf) << 2) |
 635         (sec_strength & 0x03);
 636   }
 637   if (num_planes > 1) {
 638     for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
 639       sec_strength = frame_header->cdef_params.cdef_uv_sec_strength[i];
 640       g_assert (sec_strength <= 4);
 641       /* may need to minus 1 in order to merge with primary value. */
 642       if (sec_strength == 4)
 643         sec_strength--;
 644
 645       pic_param->cdef_uv_strengths[i] =
 646           ((frame_header->cdef_params.cdef_uv_pri_strength[i] & 0xf) << 2) |
 647           (sec_strength & 0x03);
 648     }
 649   } else {
 650     for (i = 0; i < GST_AV1_CDEF_MAX; i++) {
 651       pic_param->cdef_uv_strengths[i] = 0;
 652     }
 653   }
 654 }
 655
 656 static void
 657 _setup_global_motion_info (VADecPictureParameterBufferAV1 * pic_param,
 658     GstAV1FrameHeaderOBU * frame_header)
 659 {
 660   guint i, j;
 661
 662   for (i = 0; i < 7; i++) {
 663     /* assuming VAAV1TransformationType and GstAV1WarpModelType are
 664      * equivalent */
 665     pic_param->wm[i].wmtype = (VAAV1TransformationType)
 666         frame_header->global_motion_params.gm_type[GST_AV1_REF_LAST_FRAME + i];
 667
 668     for (j = 0; j < 6; j++)
 669       pic_param->wm[i].wmmat[j] =
 670           frame_header->global_motion_params.gm_params
 671           [GST_AV1_REF_LAST_FRAME + i][j];
 672
 673     pic_param->wm[i].wmmat[6] = 0;
 674     pic_param->wm[i].wmmat[7] = 0;
 675
 676     pic_param->wm[i].invalid =
 677         frame_header->global_motion_params.invalid[GST_AV1_REF_LAST_FRAME + i];
 678   }
 679 }
 680
 681 static GstFlowReturn
 682 gst_va_av1_dec_start_picture (GstAV1Decoder * decoder, GstAV1Picture * picture,
 683     GstAV1Dpb * dpb)
 684 {
 685   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 686   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 687   GstAV1FrameHeaderOBU *frame_header = &picture->frame_hdr;
 688   GstAV1SequenceHeaderOBU *seq_header = &self->seq;
 689   VADecPictureParameterBufferAV1 pic_param = { };
 690   GstVaDecodePicture *va_pic;
 691   guint i;
 692
 693   va_pic = gst_av1_picture_get_user_data (picture);
 694   g_assert (va_pic);
 695
 696   /* *INDENT-OFF* */
 697   pic_param = (VADecPictureParameterBufferAV1){
 698     .profile = seq_header->seq_profile,
 699     .order_hint_bits_minus_1 = seq_header->order_hint_bits_minus_1,
 700     .matrix_coefficients = seq_header->color_config.matrix_coefficients,
 701     .seq_info_fields.fields = {
 702       .still_picture = seq_header->still_picture,
 703       .use_128x128_superblock = seq_header->use_128x128_superblock,
 704       .enable_filter_intra = seq_header->enable_filter_intra,
 705       .enable_intra_edge_filter = seq_header->enable_intra_edge_filter,
 706       .enable_interintra_compound = seq_header->enable_interintra_compound,
 707       .enable_masked_compound = seq_header->enable_masked_compound,
 708       .enable_dual_filter = seq_header->enable_dual_filter,
 709       .enable_order_hint = seq_header->enable_order_hint,
 710       .enable_jnt_comp = seq_header->enable_jnt_comp,
 711       .enable_cdef = seq_header->enable_cdef,
 712       .mono_chrome = seq_header->color_config.mono_chrome,
 713       .color_range = seq_header->color_config.color_range,
 714       .subsampling_x = seq_header->color_config.subsampling_x,
 715       .subsampling_y = seq_header->color_config.subsampling_y,
 716       .film_grain_params_present = seq_header->film_grain_params_present,
 717     },
 718     .anchor_frames_num = 0,
 719     .anchor_frames_list = NULL,
 720     .frame_width_minus1 = frame_header->upscaled_width - 1,
 721     .frame_height_minus1 = frame_header->frame_height - 1,
 722     .output_frame_width_in_tiles_minus_1 = 0,
 723     .output_frame_height_in_tiles_minus_1 = 0,
 724     .order_hint = frame_header->order_hint,
 725     /* Segmentation */
 726     .seg_info.segment_info_fields.bits = {
 727       .enabled = frame_header->segmentation_params.segmentation_enabled,
 728       .update_map = frame_header->segmentation_params.segmentation_update_map,
 729       .temporal_update =
 730         frame_header->segmentation_params.segmentation_temporal_update,
 731       .update_data =
 732         frame_header->segmentation_params.segmentation_update_data,
 733     },
 734     /* FilmGrain */
 735     .film_grain_info = {
 736       .film_grain_info_fields.bits = {
 737         .apply_grain = frame_header->film_grain_params.apply_grain,
 738         .chroma_scaling_from_luma =
 739           frame_header->film_grain_params.chroma_scaling_from_luma,
 740         .grain_scaling_minus_8 =
 741           frame_header->film_grain_params.grain_scaling_minus_8,
 742         .ar_coeff_lag = frame_header->film_grain_params.ar_coeff_lag,
 743         .ar_coeff_shift_minus_6 =
 744           frame_header->film_grain_params.ar_coeff_shift_minus_6,
 745         .grain_scale_shift = frame_header->film_grain_params.grain_scale_shift,
 746         .overlap_flag = frame_header->film_grain_params.overlap_flag,
 747         .clip_to_restricted_range =
 748           frame_header->film_grain_params.clip_to_restricted_range,
 749       },
 750       .grain_seed = frame_header->film_grain_params.grain_seed,
 751       .cb_mult = frame_header->film_grain_params.cb_mult,
 752       .cb_luma_mult = frame_header->film_grain_params.cb_luma_mult,
 753       .cb_offset = frame_header->film_grain_params.cb_offset,
 754       .cr_mult = frame_header->film_grain_params.cr_mult,
 755       .cr_luma_mult = frame_header->film_grain_params.cr_luma_mult,
 756       .cr_offset = frame_header->film_grain_params.cr_offset,
 757     },
 758     .tile_cols = frame_header->tile_info.tile_cols,
 759     .tile_rows = frame_header->tile_info.tile_rows,
 760     .context_update_tile_id = frame_header->tile_info.context_update_tile_id,
 761     .pic_info_fields.bits = {
 762       .frame_type = frame_header->frame_type,
 763       .show_frame = frame_header->show_frame,
 764       .showable_frame = frame_header->showable_frame,
 765       .error_resilient_mode = frame_header->error_resilient_mode,
 766       .disable_cdf_update = frame_header->disable_cdf_update,
 767       .allow_screen_content_tools = frame_header->allow_screen_content_tools,
 768       .force_integer_mv = frame_header->force_integer_mv,
 769       .allow_intrabc = frame_header->allow_intrabc,
 770       .use_superres = frame_header->use_superres,
 771       .allow_high_precision_mv = frame_header->allow_high_precision_mv,
 772       .is_motion_mode_switchable = frame_header->is_motion_mode_switchable,
 773       .use_ref_frame_mvs = frame_header->use_ref_frame_mvs,
 774       .disable_frame_end_update_cdf =
 775         frame_header->disable_frame_end_update_cdf,
 776       .uniform_tile_spacing_flag =
 777         frame_header->tile_info.uniform_tile_spacing_flag,
 778       .allow_warped_motion = frame_header->allow_warped_motion,
 779     },
 780     .superres_scale_denominator = frame_header->superres_denom,
 781     .interp_filter = frame_header->interpolation_filter,
 782     /* loop filter */
 783     .loop_filter_info_fields.bits = {
 784       .sharpness_level =
 785         frame_header->loop_filter_params.loop_filter_sharpness,
 786       .mode_ref_delta_enabled =
 787         frame_header->loop_filter_params.loop_filter_delta_enabled,
 788       .mode_ref_delta_update =
 789         frame_header->loop_filter_params.loop_filter_delta_update,
 790     },
 791     .mode_control_fields.bits = {
 792       .delta_lf_present_flag =
 793         frame_header->loop_filter_params.delta_lf_present,
 794       .log2_delta_lf_res = frame_header->loop_filter_params.delta_lf_res,
 795       .delta_lf_multi = frame_header->loop_filter_params.delta_lf_multi,
 796       .delta_q_present_flag =
 797         frame_header->quantization_params.delta_q_present,
 798       .log2_delta_q_res = frame_header->quantization_params.delta_q_res,
 799       .tx_mode = frame_header->tx_mode,
 800       .reference_select = frame_header->reference_select,
 801       .reduced_tx_set_used = frame_header->reduced_tx_set,
 802       .skip_mode_present = frame_header->skip_mode_present,
 803     },
 804     /* quantization */
 805     .base_qindex = frame_header->quantization_params.base_q_idx,
 806     .y_dc_delta_q = frame_header->quantization_params.delta_q_y_dc,
 807     .u_dc_delta_q = frame_header->quantization_params.delta_q_u_dc,
 808     .u_ac_delta_q = frame_header->quantization_params.delta_q_u_ac,
 809     .v_dc_delta_q = frame_header->quantization_params.delta_q_v_dc,
 810     .v_ac_delta_q = frame_header->quantization_params.delta_q_v_ac,
 811     /* loop restoration */
 812     .loop_restoration_fields.bits = {
 813       .yframe_restoration_type =
 814         frame_header->loop_restoration_params.frame_restoration_type[0],
 815       .cbframe_restoration_type =
 816         frame_header->loop_restoration_params.frame_restoration_type[1],
 817       .crframe_restoration_type =
 818         frame_header->loop_restoration_params.frame_restoration_type[2],
 819       .lr_unit_shift = frame_header->loop_restoration_params.lr_unit_shift,
 820       .lr_uv_shift = frame_header->loop_restoration_params.lr_uv_shift,
 821     },
 822   };
 823   /* *INDENT-ON* */
 824
 825   if (seq_header->bit_depth == 8) {
 826     pic_param.bit_depth_idx = 0;
 827   } else if (seq_header->bit_depth == 10) {
 828     pic_param.bit_depth_idx = 1;
 829   } else if (seq_header->bit_depth == 12) {
 830     pic_param.bit_depth_idx = 2;
 831   } else {
 832     g_assert_not_reached ();
 833   }
 834
 835   if (frame_header->film_grain_params.apply_grain) {
 836     pic_param.current_frame = gst_va_decode_picture_get_aux_surface (va_pic);
 837     pic_param.current_display_picture =
 838         gst_va_decode_picture_get_surface (va_pic);
 839   } else {
 840     pic_param.current_frame = gst_va_decode_picture_get_surface (va_pic);
 841     pic_param.current_display_picture = VA_INVALID_SURFACE;
 842   }
 843
 844   for (i = 0; i < GST_AV1_NUM_REF_FRAMES; i++) {
 845     if (dpb->pic_list[i]) {
 846       if (dpb->pic_list[i]->apply_grain) {
 847         pic_param.ref_frame_map[i] = gst_va_decode_picture_get_aux_surface
 848             (gst_av1_picture_get_user_data (dpb->pic_list[i]));
 849       } else {
 850         pic_param.ref_frame_map[i] = gst_va_decode_picture_get_surface
 851             (gst_av1_picture_get_user_data (dpb->pic_list[i]));
 852       }
 853     } else {
 854       pic_param.ref_frame_map[i] = VA_INVALID_SURFACE;
 855     }
 856   }
 857   for (i = 0; i < GST_AV1_REFS_PER_FRAME; i++) {
 858     pic_param.ref_frame_idx[i] = frame_header->ref_frame_idx[i];
 859   }
 860   pic_param.primary_ref_frame = frame_header->primary_ref_frame;
 861
 862   _setup_segment_info (&pic_param, frame_header);
 863   _setup_film_grain_info (&pic_param, frame_header);
 864
 865   for (i = 0; i < 63; i++) {
 866     pic_param.width_in_sbs_minus_1[i] =
 867         frame_header->tile_info.width_in_sbs_minus_1[i];
 868     pic_param.height_in_sbs_minus_1[i] =
 869         frame_header->tile_info.height_in_sbs_minus_1[i];
 870   }
 871
 872   _setup_loop_filter_info (&pic_param, frame_header);
 873   _setup_quantization_info (&pic_param, frame_header);
 874   _setup_cdef_info (&pic_param, frame_header, seq_header->num_planes);
 875   _setup_global_motion_info (&pic_param, frame_header);
 876
 877   if (!gst_va_decoder_add_param_buffer (base->decoder, va_pic,
 878           VAPictureParameterBufferType, &pic_param, sizeof (pic_param)))
 879     return GST_FLOW_ERROR;
 880
 881   return GST_FLOW_OK;
 882 }
 883
 884 static GstFlowReturn
 885 gst_va_av1_dec_decode_tile (GstAV1Decoder * decoder, GstAV1Picture * picture,
 886     GstAV1Tile * tile)
 887 {
 888   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 889   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 890   GstAV1TileGroupOBU *tile_group = &tile->tile_group;
 891   GstVaDecodePicture *va_pic;
 892   guint i;
 893   VASliceParameterBufferAV1 slice_param[GST_AV1_MAX_TILE_COUNT];
 894
 895   GST_TRACE_OBJECT (self, "-");
 896
 897   for (i = 0; i < tile_group->tg_end - tile_group->tg_start + 1; i++) {
 898     slice_param[i] = (VASliceParameterBufferAV1) {
 899     };
 900     slice_param[i].slice_data_size =
 901         tile_group->entry[tile_group->tg_start + i].tile_size;
 902     slice_param[i].slice_data_offset =
 903         tile_group->entry[tile_group->tg_start + i].tile_offset;
 904     slice_param[i].tile_row =
 905         tile_group->entry[tile_group->tg_start + i].tile_row;
 906     slice_param[i].tile_column =
 907         tile_group->entry[tile_group->tg_start + i].tile_col;
 908     slice_param[i].slice_data_flag = 0;
 909   }
 910
 911   va_pic = gst_av1_picture_get_user_data (picture);
 912
 913   if (!gst_va_decoder_add_slice_buffer_with_n_params (base->decoder, va_pic,
 914           slice_param, sizeof (VASliceParameterBufferAV1), i, tile->obu.data,
 915           tile->obu.obu_size)) {
 916     return GST_FLOW_ERROR;
 917   }
 918
 919   return GST_FLOW_OK;
 920 }
 921
 922 static GstFlowReturn
 923 gst_va_av1_dec_end_picture (GstAV1Decoder * decoder, GstAV1Picture * picture)
 924 {
 925   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 926   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 927   GstVaDecodePicture *va_pic;
 928
 929   GST_LOG_OBJECT (self, "end picture %p, (system_frame_number %d)",
 930       picture, picture->system_frame_number);
 931
 932   va_pic = gst_av1_picture_get_user_data (picture);
 933
 934   if (!gst_va_decoder_decode_with_aux_surface (base->decoder, va_pic,
 935           picture->apply_grain)) {
 936     return GST_FLOW_ERROR;
 937   }
 938
 939   return GST_FLOW_OK;
 940 }
 941
 942 static GstFlowReturn
 943 gst_va_av1_dec_output_picture (GstAV1Decoder * decoder,
 944     GstVideoCodecFrame * frame, GstAV1Picture * picture)
 945 {
 946   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 947   GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
 948
 949   g_assert (picture->frame_hdr.show_frame ||
 950       picture->frame_hdr.show_existing_frame);
 951
 952   GST_LOG_OBJECT (self,
 953       "Outputting picture %p (system_frame_number %d)",
 954       picture, picture->system_frame_number);
 955
 956   if (self->last_ret != GST_FLOW_OK) {
 957     gst_av1_picture_unref (picture);
 958     gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
 959     return self->last_ret;
 960   }
 961
 962   if (picture->frame_hdr.show_existing_frame) {
 963     GstVaDecodePicture *pic;
 964
 965     g_assert (!frame->output_buffer);
 966     pic = gst_av1_picture_get_user_data (picture);
 967     frame->output_buffer = gst_buffer_ref (pic->gstbuffer);
 968   }
 969
 970   if (base->copy_frames)
 971     gst_va_base_dec_copy_output_buffer (base, frame);
 972
 973   gst_av1_picture_unref (picture);
 974
 975   return gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
 976 }
 977
 978 static gboolean
 979 gst_va_av1_dec_start (GstVideoDecoder * decoder)
 980 {
 981   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 982
 983   self->preferred_format = GST_VIDEO_FORMAT_UNKNOWN;
 984
 985   return GST_VIDEO_DECODER_CLASS (parent_class)->start (decoder);
 986 }
 987
 988 static gboolean
 989 gst_va_av1_dec_close (GstVideoDecoder * decoder)
 990 {
 991   GstVaAV1Dec *self = GST_VA_AV1_DEC (decoder);
 992
 993   _clear_internal_pool (self);
 994
 995   return gst_va_base_dec_close (GST_VIDEO_DECODER (decoder));
 996 }
 997
 998 static void
 999 gst_va_av1_dec_init (GTypeInstance * instance, gpointer g_class)
1000 {
1001   gst_va_base_dec_init (GST_VA_BASE_DEC (instance), GST_CAT_DEFAULT);
1002 }
1003
1004 static void
1005 gst_va_av1_dec_dispose (GObject * object)
1006 {
1007   gst_va_base_dec_close (GST_VIDEO_DECODER (object));
1008   G_OBJECT_CLASS (parent_class)->dispose (object);
1009 }
1010
1011 static void
1012 gst_va_av1_dec_class_init (gpointer g_class, gpointer class_data)
1013 {
1014   GstCaps *src_doc_caps, *sink_doc_caps;
1015   GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
1016   GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
1017   GstAV1DecoderClass *av1decoder_class = GST_AV1_DECODER_CLASS (g_class);
1018   GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (g_class);
1019   struct CData *cdata = class_data;
1020   gchar *long_name;
1021
1022   if (cdata->description) {
1023     long_name = g_strdup_printf ("VA-API AV1 Decoder in %s",
1024         cdata->description);
1025   } else {
1026     long_name = g_strdup ("VA-API AV1 Decoder");
1027   }
1028
1029   gst_element_class_set_metadata (element_class, long_name,
1030       "Codec/Decoder/Video/Hardware",
1031       "VA-API based AV1 video decoder", "He Junyan <junyan.he@intel.com>");
1032
1033   sink_doc_caps = gst_caps_from_string (sink_caps_str);
1034   src_doc_caps = gst_caps_from_string (src_caps_str);
1035
1036   parent_class = g_type_class_peek_parent (g_class);
1037
1038   /**
1039    * GstVaAV1Dec:device-path:
1040    *
1041    * It shows the DRM device path used for the VA operation, if any.
1042    *
1043    * Since: 1.22
1044    */
1045   gst_va_base_dec_class_init (GST_VA_BASE_DEC_CLASS (g_class), AV1,
1046       cdata->render_device_path, cdata->sink_caps, cdata->src_caps,
1047       src_doc_caps, sink_doc_caps);
1048
1049   gobject_class->dispose = gst_va_av1_dec_dispose;
1050
1051   decoder_class->getcaps = GST_DEBUG_FUNCPTR (gst_va_av1_dec_getcaps);
1052   decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_va_av1_dec_negotiate);
1053   decoder_class->close = GST_DEBUG_FUNCPTR (gst_va_av1_dec_close);
1054   decoder_class->start = GST_DEBUG_FUNCPTR (gst_va_av1_dec_start);
1055
1056   av1decoder_class->new_sequence =
1057       GST_DEBUG_FUNCPTR (gst_va_av1_dec_new_sequence);
1058   av1decoder_class->new_picture =
1059       GST_DEBUG_FUNCPTR (gst_va_av1_dec_new_picture);
1060   av1decoder_class->duplicate_picture =
1061       GST_DEBUG_FUNCPTR (gst_va_av1_dec_duplicate_picture);
1062   av1decoder_class->start_picture =
1063       GST_DEBUG_FUNCPTR (gst_va_av1_dec_start_picture);
1064   av1decoder_class->decode_tile =
1065       GST_DEBUG_FUNCPTR (gst_va_av1_dec_decode_tile);
1066   av1decoder_class->end_picture =
1067       GST_DEBUG_FUNCPTR (gst_va_av1_dec_end_picture);
1068   av1decoder_class->output_picture =
1069       GST_DEBUG_FUNCPTR (gst_va_av1_dec_output_picture);
1070
1071   g_free (long_name);
1072   g_free (cdata->description);
1073   g_free (cdata->render_device_path);
1074   gst_caps_unref (cdata->src_caps);
1075   gst_caps_unref (cdata->sink_caps);
1076   g_free (cdata);
1077 }
1078
1079 static gpointer
1080 _register_debug_category (gpointer data)
1081 {
1082   GST_DEBUG_CATEGORY_INIT (gst_va_av1dec_debug, "vaav1dec", 0,
1083       "VA AV1 decoder");
1084
1085   return NULL;
1086 }
1087
1088 gboolean
1089 gst_va_av1_dec_register (GstPlugin * plugin, GstVaDevice * device,
1090     GstCaps * sink_caps, GstCaps * src_caps, guint rank)
1091 {
1092   static GOnce debug_once = G_ONCE_INIT;
1093   GType type;
1094   GTypeInfo type_info = {
1095     .class_size = sizeof (GstVaAV1DecClass),
1096     .class_init = gst_va_av1_dec_class_init,
1097     .instance_size = sizeof (GstVaAV1Dec),
1098     .instance_init = gst_va_av1_dec_init,
1099   };
1100   struct CData *cdata;
1101   gboolean ret;
1102   gchar *type_name, *feature_name;
1103
1104   g_return_val_if_fail (GST_IS_PLUGIN (plugin), FALSE);
1105   g_return_val_if_fail (GST_IS_VA_DEVICE (device), FALSE);
1106   g_return_val_if_fail (GST_IS_CAPS (sink_caps), FALSE);
1107   g_return_val_if_fail (GST_IS_CAPS (src_caps), FALSE);
1108
1109   cdata = g_new (struct CData, 1);
1110   cdata->description = NULL;
1111   cdata->render_device_path = g_strdup (device->render_device_path);
1112   cdata->sink_caps = _complete_sink_caps (sink_caps);
1113   cdata->src_caps = gst_caps_ref (src_caps);
1114
1115   /* class data will be leaked if the element never gets instantiated */
1116   GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps,
1117       GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
1118   GST_MINI_OBJECT_FLAG_SET (src_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
1119
1120   type_info.class_data = cdata;
1121
1122   /* The first decoder to be registered should use a constant name,
1123    * like vaav1dec, for any additional decoders, we create unique
1124    * names, using inserting the render device name. */
1125   if (device->index == 0) {
1126     type_name = g_strdup ("GstVaAV1Dec");
1127     feature_name = g_strdup ("vaav1dec");
1128   } else {
1129     gchar *basename = g_path_get_basename (device->render_device_path);
1130     type_name = g_strdup_printf ("GstVa%sAV1Dec", basename);
1131     feature_name = g_strdup_printf ("va%sav1dec", basename);
1132     cdata->description = basename;
1133
1134     /* lower rank for non-first device */
1135     if (rank > 0)
1136       rank--;
1137   }
1138
1139   g_once (&debug_once, _register_debug_category, NULL);
1140
1141   type = g_type_register_static (GST_TYPE_AV1_DECODER,
1142       type_name, &type_info, 0);
1143
1144   ret = gst_element_register (plugin, feature_name, rank, type);
1145
1146   g_free (type_name);
1147   g_free (feature_name);
1148
1149   return ret;
1150 }