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dxva2_h264.c
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1 /*
2  * DXVA2 H.264 HW acceleration.
3  *
4  * copyright (c) 2009 Laurent Aimar
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "libavutil/avassert.h"
24 
25 #include "dxva2_internal.h"
26 #include "h264dec.h"
27 #include "h264data.h"
28 #include "h264_ps.h"
29 #include "mpegutils.h"
30 
32  DXVA_PicParams_H264 pp;
33  DXVA_Qmatrix_H264 qm;
34  unsigned slice_count;
35  DXVA_Slice_H264_Short slice_short[MAX_SLICES];
36  DXVA_Slice_H264_Long slice_long[MAX_SLICES];
38  unsigned bitstream_size;
39 };
40 
41 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
42  unsigned index, unsigned flag)
43 {
44  assert((index&0x7f) == index && (flag&0x01) == flag);
45  pic->bPicEntry = index | (flag << 7);
46 }
47 
49  DXVA_PicParams_H264 *pp)
50 {
51  const H264Picture *current_picture = h->cur_pic_ptr;
52  const SPS *sps = h->ps.sps;
53  const PPS *pps = h->ps.pps;
54  int i, j;
55 
56  memset(pp, 0, sizeof(*pp));
57  /* Configure current picture */
58  fill_picture_entry(&pp->CurrPic,
59  ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
61  /* Configure the set of references */
62  pp->UsedForReferenceFlags = 0;
63  pp->NonExistingFrameFlags = 0;
64  for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
65  const H264Picture *r;
66  if (j < h->short_ref_count) {
67  r = h->short_ref[j++];
68  } else {
69  r = NULL;
70  while (!r && j < h->short_ref_count + 16)
71  r = h->long_ref[j++ - h->short_ref_count];
72  }
73  if (r) {
74  fill_picture_entry(&pp->RefFrameList[i],
75  ff_dxva2_get_surface_index(avctx, ctx, r->f),
76  r->long_ref != 0);
77 
78  if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
79  pp->FieldOrderCntList[i][0] = r->field_poc[0];
80  if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
81  pp->FieldOrderCntList[i][1] = r->field_poc[1];
82 
83  pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
84  if (r->reference & PICT_TOP_FIELD)
85  pp->UsedForReferenceFlags |= 1 << (2*i + 0);
87  pp->UsedForReferenceFlags |= 1 << (2*i + 1);
88  } else {
89  pp->RefFrameList[i].bPicEntry = 0xff;
90  pp->FieldOrderCntList[i][0] = 0;
91  pp->FieldOrderCntList[i][1] = 0;
92  pp->FrameNumList[i] = 0;
93  }
94  }
95 
96  pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
97  pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
98  pp->num_ref_frames = sps->ref_frame_count;
99 
100  pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
101  ((sps->mb_aff &&
102  (h->picture_structure == PICT_FRAME)) << 1) |
103  (sps->residual_color_transform_flag << 2) |
104  /* sp_for_switch_flag (not implemented by FFmpeg) */
105  (0 << 3) |
106  (sps->chroma_format_idc << 4) |
107  ((h->nal_ref_idc != 0) << 6) |
108  (pps->constrained_intra_pred << 7) |
109  (pps->weighted_pred << 8) |
110  (pps->weighted_bipred_idc << 9) |
111  /* MbsConsecutiveFlag */
112  (1 << 11) |
113  (sps->frame_mbs_only_flag << 12) |
114  (pps->transform_8x8_mode << 13) |
115  ((sps->level_idc >= 31) << 14) |
116  /* IntraPicFlag (Modified if we detect a non
117  * intra slice in dxva2_h264_decode_slice) */
118  (1 << 15);
119 
120  pp->bit_depth_luma_minus8 = sps->bit_depth_luma - 8;
121  pp->bit_depth_chroma_minus8 = sps->bit_depth_chroma - 8;
122  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
123  pp->Reserved16Bits = 0;
124  else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
125  pp->Reserved16Bits = 0x34c;
126  else
127  pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
128  pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
129  pp->CurrFieldOrderCnt[0] = 0;
130  if ((h->picture_structure & PICT_TOP_FIELD) &&
131  current_picture->field_poc[0] != INT_MAX)
132  pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
133  pp->CurrFieldOrderCnt[1] = 0;
135  current_picture->field_poc[1] != INT_MAX)
136  pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
137  pp->pic_init_qs_minus26 = pps->init_qs - 26;
138  pp->chroma_qp_index_offset = pps->chroma_qp_index_offset[0];
139  pp->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
140  pp->ContinuationFlag = 1;
141  pp->pic_init_qp_minus26 = pps->init_qp - 26;
142  pp->num_ref_idx_l0_active_minus1 = pps->ref_count[0] - 1;
143  pp->num_ref_idx_l1_active_minus1 = pps->ref_count[1] - 1;
144  pp->Reserved8BitsA = 0;
145  pp->frame_num = h->poc.frame_num;
146  pp->log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4;
147  pp->pic_order_cnt_type = sps->poc_type;
148  if (sps->poc_type == 0)
149  pp->log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4;
150  else if (sps->poc_type == 1)
151  pp->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
152  pp->direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
153  pp->entropy_coding_mode_flag = pps->cabac;
154  pp->pic_order_present_flag = pps->pic_order_present;
155  pp->num_slice_groups_minus1 = pps->slice_group_count - 1;
156  pp->slice_group_map_type = pps->mb_slice_group_map_type;
157  pp->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
158  pp->redundant_pic_cnt_present_flag= pps->redundant_pic_cnt_present;
159  pp->Reserved8BitsB = 0;
160  pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by FFmpeg */
161  //pp->SliceGroupMap[810]; /* XXX not implemented by FFmpeg */
162 }
163 
164 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
165 {
166  const PPS *pps = h->ps.pps;
167  unsigned i, j;
168  memset(qm, 0, sizeof(*qm));
169  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
170  for (i = 0; i < 6; i++)
171  for (j = 0; j < 16; j++)
172  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][j];
173 
174  for (i = 0; i < 64; i++) {
175  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][i];
176  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][i];
177  }
178  } else {
179  for (i = 0; i < 6; i++)
180  for (j = 0; j < 16; j++)
181  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][ff_zigzag_scan[j]];
182 
183  for (i = 0; i < 64; i++) {
184  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][ff_zigzag_direct[i]];
185  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][ff_zigzag_direct[i]];
186  }
187  }
188 }
189 
190 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
191 {
192  assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
193  DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
194  return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
195 }
196 
197 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
198  unsigned position, unsigned size)
199 {
200  memset(slice, 0, sizeof(*slice));
201  slice->BSNALunitDataLocation = position;
202  slice->SliceBytesInBuffer = size;
203  slice->wBadSliceChopping = 0;
204 }
205 
206 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
207 {
208  int i;
209  for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
210  if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
211  return i;
212  }
213  return 0x7f;
214 }
215 
216 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
217  const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
218 {
219  const H264Context *h = avctx->priv_data;
220  H264SliceContext *sl = &h->slice_ctx[0];
221  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
222  unsigned list;
223 
224  memset(slice, 0, sizeof(*slice));
225  slice->BSNALunitDataLocation = position;
226  slice->SliceBytesInBuffer = size;
227  slice->wBadSliceChopping = 0;
228 
229  slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
230  slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
231  slice->BitOffsetToSliceData = get_bits_count(&sl->gb) - 8;
232  slice->slice_type = ff_h264_get_slice_type(sl);
233  if (sl->slice_type_fixed)
234  slice->slice_type += 5;
235  slice->luma_log2_weight_denom = sl->pwt.luma_log2_weight_denom;
236  slice->chroma_log2_weight_denom = sl->pwt.chroma_log2_weight_denom;
237  if (sl->list_count > 0)
238  slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
239  if (sl->list_count > 1)
240  slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
241  slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
242  slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
243  slice->Reserved8Bits = 0;
244 
245  for (list = 0; list < 2; list++) {
246  unsigned i;
247  for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
248  if (list < sl->list_count && i < sl->ref_count[list]) {
249  const H264Picture *r = sl->ref_list[list][i].parent;
250  unsigned plane;
251  unsigned index;
252  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
253  index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
254  else
255  index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
256  fill_picture_entry(&slice->RefPicList[list][i], index,
257  sl->ref_list[list][i].reference == PICT_BOTTOM_FIELD);
258  for (plane = 0; plane < 3; plane++) {
259  int w, o;
260  if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
261  w = sl->pwt.luma_weight[i][list][0];
262  o = sl->pwt.luma_weight[i][list][1];
263  } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
264  w = sl->pwt.chroma_weight[i][list][plane-1][0];
265  o = sl->pwt.chroma_weight[i][list][plane-1][1];
266  } else {
267  w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
269  o = 0;
270  }
271  slice->Weights[list][i][plane][0] = w;
272  slice->Weights[list][i][plane][1] = o;
273  }
274  } else {
275  unsigned plane;
276  slice->RefPicList[list][i].bPicEntry = 0xff;
277  for (plane = 0; plane < 3; plane++) {
278  slice->Weights[list][i][plane][0] = 0;
279  slice->Weights[list][i][plane][1] = 0;
280  }
281  }
282  }
283  }
284  slice->slice_qs_delta = 0; /* XXX not implemented by FFmpeg */
285  slice->slice_qp_delta = sl->qscale - h->ps.pps->init_qp;
286  slice->redundant_pic_cnt = sl->redundant_pic_count;
287  if (sl->slice_type == AV_PICTURE_TYPE_B)
288  slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
289  slice->cabac_init_idc = h->ps.pps->cabac ? sl->cabac_init_idc : 0;
290  if (sl->deblocking_filter < 2)
291  slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
292  else
293  slice->disable_deblocking_filter_idc = sl->deblocking_filter;
294  slice->slice_id = h->current_slice - 1;
295 }
296 
300 {
301  const H264Context *h = avctx->priv_data;
302  const unsigned mb_count = h->mb_width * h->mb_height;
303  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
304  const H264Picture *current_picture = h->cur_pic_ptr;
305  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
306  DXVA_Slice_H264_Short *slice = NULL;
307  void *dxva_data_ptr = NULL;
308  uint8_t *dxva_data, *current, *end;
309  unsigned dxva_size = 0;
310  void *slice_data;
311  unsigned slice_size;
312  unsigned padding;
313  unsigned i;
314  unsigned type;
315 
316  /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
317 #if CONFIG_D3D11VA
318  if (ff_dxva2_is_d3d11(avctx)) {
319  type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
320  if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
321  D3D11VA_CONTEXT(ctx)->decoder,
322  type,
323  &dxva_size, &dxva_data_ptr)))
324  return -1;
325  }
326 #endif
327 #if CONFIG_DXVA2
328  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
329  type = DXVA2_BitStreamDateBufferType;
330  if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
331  type,
332  &dxva_data_ptr, &dxva_size)))
333  return -1;
334  }
335 #endif
336 
337  dxva_data = dxva_data_ptr;
338  current = dxva_data;
339  end = dxva_data + dxva_size;
340 
341  for (i = 0; i < ctx_pic->slice_count; i++) {
342  static const uint8_t start_code[] = { 0, 0, 1 };
343  static const unsigned start_code_size = sizeof(start_code);
344  unsigned position, size;
345 
346  assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
347  offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
348  assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
349  offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
350 
351  if (is_slice_short(avctx, ctx))
352  slice = &ctx_pic->slice_short[i];
353  else
354  slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
355 
356  position = slice->BSNALunitDataLocation;
357  size = slice->SliceBytesInBuffer;
358  if (start_code_size + size > end - current) {
359  av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
360  break;
361  }
362 
363  slice->BSNALunitDataLocation = current - dxva_data;
364  slice->SliceBytesInBuffer = start_code_size + size;
365 
366  if (!is_slice_short(avctx, ctx)) {
367  DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
368  if (i < ctx_pic->slice_count - 1)
369  slice_long->NumMbsForSlice =
370  slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
371  else
372  slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
373  }
374 
375  memcpy(current, start_code, start_code_size);
376  current += start_code_size;
377 
378  memcpy(current, &ctx_pic->bitstream[position], size);
379  current += size;
380  }
381  padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
382  if (slice && padding > 0) {
383  memset(current, 0, padding);
384  current += padding;
385 
386  slice->SliceBytesInBuffer += padding;
387  }
388 #if CONFIG_D3D11VA
389  if (ff_dxva2_is_d3d11(avctx))
390  if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
391  return -1;
392 #endif
393 #if CONFIG_DXVA2
394  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
395  if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
396  return -1;
397 #endif
398  if (i < ctx_pic->slice_count)
399  return -1;
400 
401 #if CONFIG_D3D11VA
402  if (ff_dxva2_is_d3d11(avctx)) {
403  D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
404  memset(dsc11, 0, sizeof(*dsc11));
405  dsc11->BufferType = type;
406  dsc11->DataSize = current - dxva_data;
407  dsc11->NumMBsInBuffer = mb_count;
408 
409  type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
410 
411  av_assert0((dsc11->DataSize & 127) == 0);
412  }
413 #endif
414 #if CONFIG_DXVA2
415  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
416  DXVA2_DecodeBufferDesc *dsc2 = bs;
417  memset(dsc2, 0, sizeof(*dsc2));
418  dsc2->CompressedBufferType = type;
419  dsc2->DataSize = current - dxva_data;
420  dsc2->NumMBsInBuffer = mb_count;
421 
422  type = DXVA2_SliceControlBufferType;
423 
424  av_assert0((dsc2->DataSize & 127) == 0);
425  }
426 #endif
427 
428  if (is_slice_short(avctx, ctx)) {
429  slice_data = ctx_pic->slice_short;
430  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
431  } else {
432  slice_data = ctx_pic->slice_long;
433  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
434  }
435  return ff_dxva2_commit_buffer(avctx, ctx, sc,
436  type,
437  slice_data, slice_size, mb_count);
438 }
439 
440 
442  av_unused const uint8_t *buffer,
443  av_unused uint32_t size)
444 {
445  const H264Context *h = avctx->priv_data;
446  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
448 
449  if (!DXVA_CONTEXT_VALID(avctx, ctx))
450  return -1;
451  assert(ctx_pic);
452 
453  /* Fill up DXVA_PicParams_H264 */
454  fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
455 
456  /* Fill up DXVA_Qmatrix_H264 */
457  fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
458 
459  ctx_pic->slice_count = 0;
460  ctx_pic->bitstream_size = 0;
461  ctx_pic->bitstream = NULL;
462  return 0;
463 }
464 
466  const uint8_t *buffer,
467  uint32_t size)
468 {
469  const H264Context *h = avctx->priv_data;
470  const H264SliceContext *sl = &h->slice_ctx[0];
471  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
472  const H264Picture *current_picture = h->cur_pic_ptr;
473  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
474  unsigned position;
475 
476  if (ctx_pic->slice_count >= MAX_SLICES)
477  return -1;
478 
479  if (!ctx_pic->bitstream)
480  ctx_pic->bitstream = buffer;
481  ctx_pic->bitstream_size += size;
482 
483  position = buffer - ctx_pic->bitstream;
484  if (is_slice_short(avctx, ctx))
485  fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
486  position, size);
487  else
488  fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
489  &ctx_pic->pp, position, size);
490  ctx_pic->slice_count++;
491 
493  ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
494  return 0;
495 }
496 
498 {
499  H264Context *h = avctx->priv_data;
500  H264SliceContext *sl = &h->slice_ctx[0];
501  struct dxva2_picture_context *ctx_pic =
503  int ret;
504 
505  if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
506  return -1;
507  ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
508  &ctx_pic->pp, sizeof(ctx_pic->pp),
509  &ctx_pic->qm, sizeof(ctx_pic->qm),
511  if (!ret)
512  ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
513  return ret;
514 }
515 
516 #if CONFIG_H264_DXVA2_HWACCEL
518  .name = "h264_dxva2",
519  .type = AVMEDIA_TYPE_VIDEO,
520  .id = AV_CODEC_ID_H264,
521  .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
522  .init = ff_dxva2_decode_init,
523  .uninit = ff_dxva2_decode_uninit,
524  .start_frame = dxva2_h264_start_frame,
525  .decode_slice = dxva2_h264_decode_slice,
526  .end_frame = dxva2_h264_end_frame,
527  .frame_params = ff_dxva2_common_frame_params,
528  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
529  .priv_data_size = sizeof(FFDXVASharedContext),
530 };
531 #endif
532 
533 #if CONFIG_H264_D3D11VA_HWACCEL
535  .name = "h264_d3d11va",
536  .type = AVMEDIA_TYPE_VIDEO,
537  .id = AV_CODEC_ID_H264,
538  .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
539  .init = ff_dxva2_decode_init,
540  .uninit = ff_dxva2_decode_uninit,
541  .start_frame = dxva2_h264_start_frame,
542  .decode_slice = dxva2_h264_decode_slice,
543  .end_frame = dxva2_h264_end_frame,
544  .frame_params = ff_dxva2_common_frame_params,
545  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
546  .priv_data_size = sizeof(FFDXVASharedContext),
547 };
548 #endif
549 
550 #if CONFIG_H264_D3D11VA2_HWACCEL
552  .name = "h264_d3d11va2",
553  .type = AVMEDIA_TYPE_VIDEO,
554  .id = AV_CODEC_ID_H264,
555  .pix_fmt = AV_PIX_FMT_D3D11,
556  .init = ff_dxva2_decode_init,
557  .uninit = ff_dxva2_decode_uninit,
558  .start_frame = dxva2_h264_start_frame,
559  .decode_slice = dxva2_h264_decode_slice,
560  .end_frame = dxva2_h264_end_frame,
561  .frame_params = ff_dxva2_common_frame_params,
562  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
563  .priv_data_size = sizeof(FFDXVASharedContext),
564 };
565 #endif
int chroma_format_idc
Definition: h264_ps.h:48
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
int long_ref
1->long term reference 0->short term reference
Definition: h264dec.h:154
H264POCContext poc
Definition: h264dec.h:460
#define flag(name)
Definition: cbs_h2645.c:255
int weighted_bipred_idc
Definition: h264_ps.h:117
int chroma_qp_index_offset[2]
Definition: h264_ps.h:120
int luma_weight_flag[2]
7.4.3.2 luma_weight_lX_flag
Definition: h264_parse.h:35
int chroma_weight[48][2][2][2]
Definition: h264_parse.h:39
Sequence parameter set.
Definition: h264_ps.h:44
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264_ps.h:115
Picture parameter set.
Definition: h264_ps.h:109
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1742
int frame_mbs_only_flag
Definition: h264_ps.h:62
int mb_height
Definition: h264dec.h:435
DXVA_PicParams_H264 pp
Definition: dxva2_h264.c:32
H264Context.
Definition: h264dec.h:337
AVFrame * f
Definition: h264dec.h:129
H264Picture * long_ref[32]
Definition: h264dec.h:464
int picture_structure
Definition: h264dec.h:407
#define D3D11VA_CONTEXT(ctx)
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264dec.h:267
Switching Intra.
Definition: avutil.h:278
static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice, const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
Definition: dxva2_h264.c:216
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
uint8_t scaling_matrix4[6][16]
Definition: h264_ps.h:125
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264_ps.h:121
int ff_dxva2_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Definition: dxva2.c:586
const PPS * pps
Definition: h264_ps.h:145
int ff_dxva2_decode_uninit(AVCodecContext *avctx)
Definition: dxva2.c:724
uint8_t
int slice_alpha_c0_offset
Definition: h264dec.h:194
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Definition: h264_ps.h:99
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int chroma_weight_flag[2]
7.4.3.2 chroma_weight_lX_flag
Definition: h264_parse.h:36
static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
Definition: dxva2_h264.c:190
int cabac
entropy_coding_mode_flag
Definition: h264_ps.h:111
int ff_dxva2_common_end_frame(AVCodecContext *avctx, AVFrame *frame, const void *pp, unsigned pp_size, const void *qm, unsigned qm_size, int(*commit_bs_si)(AVCodecContext *, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *slice))
Definition: dxva2.c:880
#define PICT_BOTTOM_FIELD
Definition: mpegutils.h:38
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:219
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264_ps.h:123
const AVHWAccel ff_h264_d3d11va_hwaccel
ptrdiff_t size
Definition: opengl_enc.c:101
int luma_weight[48][2][2]
Definition: h264_parse.h:38
H264Picture * parent
Definition: h264dec.h:174
DXVA_SliceInfo slice[MAX_SLICES]
Definition: dxva2_mpeg2.c:34
#define av_log(a,...)
#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG
Work around for Direct3D11 and old UVD/UVD+ ATI video cards.
Definition: d3d11va.h:48
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264dec.c:102
H.264 parameter set handling.
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264_ps.h:63
int chroma_log2_weight_denom
Definition: h264_parse.h:34
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int poc_type
pic_order_cnt_type
Definition: h264_ps.h:51
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264_ps.h:122
void * hwaccel_picture_private
hardware accelerator private data
Definition: h264dec.h:142
const char * r
Definition: vf_curves.c:111
const uint8_t ff_zigzag_scan[16+1]
Definition: mathtables.c:109
int ff_dxva2_is_d3d11(const AVCodecContext *avctx)
Definition: dxva2.c:1045
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264dec.h:193
#define DXVA2_CONTEXT(ctx)
simple assert() macros that are a bit more flexible than ISO C assert().
int weighted_pred
weighted_pred_flag
Definition: h264_ps.h:116
#define PICT_TOP_FIELD
Definition: mpegutils.h:37
int direct_spatial_mv_pred
Definition: h264dec.h:251
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264dec.h:149
#define MAX_SLICES
Definition: dxva2_hevc.c:29
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264_ps.h:100
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:2158
int delta_pic_order_always_zero_flag
Definition: h264_ps.h:53
static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_PicParams_H264 *pp)
Definition: dxva2_h264.c:48
uint8_t scaling_matrix8[6][64]
Definition: h264_ps.h:126
int ref_frame_count
num_ref_frames
Definition: h264_ps.h:57
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3597
#define FFMIN(a, b)
Definition: common.h:96
int reference
Definition: h264dec.h:160
static const chunk_decoder decoder[8]
Definition: dfa.c:330
int redundant_pic_count
Definition: h264dec.h:244
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO
Work around for Direct3D11 and old Intel GPUs with ClearVideo interface.
Definition: d3d11va.h:49
uint8_t w
Definition: llviddspenc.c:38
H264PredWeightTable pwt
Definition: h264dec.h:197
AVFormatContext * ctx
Definition: movenc.c:48
int init_qp
pic_init_qp_minus26 + 26
Definition: h264_ps.h:118
int ff_dxva2_decode_init(AVCodecContext *avctx)
Definition: dxva2.c:649
H.264 / AVC / MPEG-4 part10 codec.
H264SliceContext * slice_ctx
Definition: h264dec.h:350
int direct_8x8_inference_flag
Definition: h264_ps.h:64
int reference
Definition: h264dec.h:170
unsigned bitstream_size
Definition: dxva2_h264.c:38
#define FIELD_OR_MBAFF_PICTURE(h)
Definition: h264dec.h:91
#define FF_ARRAY_ELEMS(a)
DXVA_Slice_H264_Long slice_long[MAX_SLICES]
Definition: dxva2_h264.c:36
int pic_order_present
pic_order_present_flag
Definition: h264_ps.h:112
static void fill_slice_short(DXVA_Slice_H264_Short *slice, unsigned position, unsigned size)
Definition: dxva2_h264.c:197
static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
Definition: dxva2_h264.c:206
AVCodecContext * avctx
Definition: h264dec.h:339
H264Picture * short_ref[32]
Definition: h264dec.h:463
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx, const AVDXVAContext *ctx, const AVFrame *frame)
Definition: dxva2.c:764
int field_poc[2]
top/bottom POC
Definition: h264dec.h:147
main external API structure.
Definition: avcodec.h:1532
int ff_dxva2_commit_buffer(AVCodecContext *avctx, AVDXVAContext *ctx, DECODER_BUFFER_DESC *dsc, unsigned type, const void *data, unsigned size, unsigned mb_count)
Definition: dxva2.c:791
GLint GLenum type
Definition: opengl_enc.c:105
static int FUNC() pps(CodedBitstreamContext *ctx, RWContext *rw, H264RawPPS *current)
int index
Definition: gxfenc.c:89
H264Picture * cur_pic_ptr
Definition: h264dec.h:346
static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
Definition: dxva2_h264.c:164
const uint8_t ff_zigzag_direct[64]
Definition: mathtables.c:98
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
const SPS * sps
Definition: h264_ps.h:146
void DECODER_BUFFER_DESC
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
Definition: h264_ps.h:52
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer. ...
Definition: pixfmt.h:137
static int dxva2_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: dxva2_h264.c:465
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264_ps.h:124
unsigned int list_count
Definition: h264dec.h:268
#define FAILED(hr)
Definition: windows2linux.h:48
const AVHWAccel ff_h264_dxva2_hwaccel
Hardware surfaces for Direct3D11.
Definition: pixfmt.h:313
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *sc)
Definition: dxva2_h264.c:297
const uint8_t * bitstream
Definition: dxva2_h264.c:37
int init_qs
pic_init_qs_minus26 + 26
Definition: h264_ps.h:119
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: h264dec.h:152
const AVHWAccel ff_h264_d3d11va2_hwaccel
if(ret< 0)
Definition: vf_mcdeint.c:279
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264_ps.h:50
H264ParamSets ps
Definition: h264dec.h:456
Bi-dir predicted.
Definition: avutil.h:276
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264_ps.h:98
static int dxva2_h264_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: dxva2_h264.c:441
static int dxva2_h264_end_frame(AVCodecContext *avctx)
Definition: dxva2_h264.c:497
void * priv_data
Definition: avcodec.h:1559
#define PICT_FRAME
Definition: mpegutils.h:39
int mb_width
Definition: h264dec.h:435
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264dec.h:488
#define DXVA_CONTEXT(avctx)
int slice_group_count
num_slice_groups_minus1 + 1
Definition: h264_ps.h:113
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264dec.h:269
int slice_type_fixed
Definition: h264dec.h:185
static const uint8_t start_code[]
HW decoding through Direct3D11 via old API, Picture.data[3] contains a ID3D11VideoDecoderOutputView p...
Definition: pixfmt.h:229
int slice_beta_offset
Definition: h264dec.h:195
int level_idc
Definition: h264_ps.h:47
DXVA_Slice_H264_Short slice_short[MAX_SLICES]
Definition: dxva2_h264.c:35
int nal_ref_idc
Definition: h264dec.h:442
GetBitContext gb
Definition: h264dec.h:179
int cabac_init_idc
Definition: h264dec.h:320
for(j=16;j >0;--j)
static void fill_picture_entry(DXVA_PicEntry_H264 *pic, unsigned index, unsigned flag)
Definition: dxva2_h264.c:41
GLuint buffer
Definition: opengl_enc.c:102
#define av_unused
Definition: attributes.h:125
int short_ref_count
number of actual short term references
Definition: h264dec.h:479
int mb_slice_group_map_type
Definition: h264_ps.h:114
DXVA_Qmatrix_H264 qm
Definition: dxva2_h264.c:33