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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 "h264dec.h"
26 #include "h264data.h"
27 #include "h264_ps.h"
28 #include "mpegutils.h"
29 
30 // The headers above may include w32threads.h, which uses the original
31 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
32 // potentially newer version.
33 #include "dxva2_internal.h"
34 
36  DXVA_PicParams_H264 pp;
37  DXVA_Qmatrix_H264 qm;
38  unsigned slice_count;
39  DXVA_Slice_H264_Short slice_short[MAX_SLICES];
40  DXVA_Slice_H264_Long slice_long[MAX_SLICES];
42  unsigned bitstream_size;
43 };
44 
45 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
46  unsigned index, unsigned flag)
47 {
48  assert((index&0x7f) == index && (flag&0x01) == flag);
49  pic->bPicEntry = index | (flag << 7);
50 }
51 
53  DXVA_PicParams_H264 *pp)
54 {
55  const H264Picture *current_picture = h->cur_pic_ptr;
56  const SPS *sps = h->ps.sps;
57  const PPS *pps = h->ps.pps;
58  int i, j;
59 
60  memset(pp, 0, sizeof(*pp));
61  /* Configure current picture */
62  fill_picture_entry(&pp->CurrPic,
63  ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
65  /* Configure the set of references */
66  pp->UsedForReferenceFlags = 0;
67  pp->NonExistingFrameFlags = 0;
68  for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
69  const H264Picture *r;
70  if (j < h->short_ref_count) {
71  r = h->short_ref[j++];
72  } else {
73  r = NULL;
74  while (!r && j < h->short_ref_count + 16)
75  r = h->long_ref[j++ - h->short_ref_count];
76  }
77  if (r) {
78  fill_picture_entry(&pp->RefFrameList[i],
79  ff_dxva2_get_surface_index(avctx, ctx, r->f),
80  r->long_ref != 0);
81 
82  if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
83  pp->FieldOrderCntList[i][0] = r->field_poc[0];
84  if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
85  pp->FieldOrderCntList[i][1] = r->field_poc[1];
86 
87  pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
88  if (r->reference & PICT_TOP_FIELD)
89  pp->UsedForReferenceFlags |= 1 << (2*i + 0);
91  pp->UsedForReferenceFlags |= 1 << (2*i + 1);
92  } else {
93  pp->RefFrameList[i].bPicEntry = 0xff;
94  pp->FieldOrderCntList[i][0] = 0;
95  pp->FieldOrderCntList[i][1] = 0;
96  pp->FrameNumList[i] = 0;
97  }
98  }
99 
100  pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
101  pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
102  pp->num_ref_frames = sps->ref_frame_count;
103 
104  pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
105  ((sps->mb_aff &&
106  (h->picture_structure == PICT_FRAME)) << 1) |
107  (sps->residual_color_transform_flag << 2) |
108  /* sp_for_switch_flag (not implemented by FFmpeg) */
109  (0 << 3) |
110  (sps->chroma_format_idc << 4) |
111  ((h->nal_ref_idc != 0) << 6) |
112  (pps->constrained_intra_pred << 7) |
113  (pps->weighted_pred << 8) |
114  (pps->weighted_bipred_idc << 9) |
115  /* MbsConsecutiveFlag */
116  (1 << 11) |
117  (sps->frame_mbs_only_flag << 12) |
118  (pps->transform_8x8_mode << 13) |
119  ((sps->level_idc >= 31) << 14) |
120  /* IntraPicFlag (Modified if we detect a non
121  * intra slice in dxva2_h264_decode_slice) */
122  (1 << 15);
123 
124  pp->bit_depth_luma_minus8 = sps->bit_depth_luma - 8;
125  pp->bit_depth_chroma_minus8 = sps->bit_depth_chroma - 8;
126  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
127  pp->Reserved16Bits = 0;
128  else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
129  pp->Reserved16Bits = 0x34c;
130  else
131  pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
132  pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
133  pp->CurrFieldOrderCnt[0] = 0;
134  if ((h->picture_structure & PICT_TOP_FIELD) &&
135  current_picture->field_poc[0] != INT_MAX)
136  pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
137  pp->CurrFieldOrderCnt[1] = 0;
139  current_picture->field_poc[1] != INT_MAX)
140  pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
141  pp->pic_init_qs_minus26 = pps->init_qs - 26;
142  pp->chroma_qp_index_offset = pps->chroma_qp_index_offset[0];
143  pp->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
144  pp->ContinuationFlag = 1;
145  pp->pic_init_qp_minus26 = pps->init_qp - 26;
146  pp->num_ref_idx_l0_active_minus1 = pps->ref_count[0] - 1;
147  pp->num_ref_idx_l1_active_minus1 = pps->ref_count[1] - 1;
148  pp->Reserved8BitsA = 0;
149  pp->frame_num = h->poc.frame_num;
150  pp->log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4;
151  pp->pic_order_cnt_type = sps->poc_type;
152  if (sps->poc_type == 0)
153  pp->log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4;
154  else if (sps->poc_type == 1)
155  pp->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
156  pp->direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
157  pp->entropy_coding_mode_flag = pps->cabac;
158  pp->pic_order_present_flag = pps->pic_order_present;
159  pp->num_slice_groups_minus1 = pps->slice_group_count - 1;
160  pp->slice_group_map_type = pps->mb_slice_group_map_type;
161  pp->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
162  pp->redundant_pic_cnt_present_flag= pps->redundant_pic_cnt_present;
163  pp->Reserved8BitsB = 0;
164  pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by FFmpeg */
165  //pp->SliceGroupMap[810]; /* XXX not implemented by FFmpeg */
166 }
167 
168 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
169 {
170  const PPS *pps = h->ps.pps;
171  unsigned i, j;
172  memset(qm, 0, sizeof(*qm));
173  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
174  for (i = 0; i < 6; i++)
175  for (j = 0; j < 16; j++)
176  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][j];
177 
178  for (i = 0; i < 64; i++) {
179  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][i];
180  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][i];
181  }
182  } else {
183  for (i = 0; i < 6; i++)
184  for (j = 0; j < 16; j++)
185  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][ff_zigzag_scan[j]];
186 
187  for (i = 0; i < 64; i++) {
188  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][ff_zigzag_direct[i]];
189  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][ff_zigzag_direct[i]];
190  }
191  }
192 }
193 
194 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
195 {
196  assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
197  DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
198  return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
199 }
200 
201 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
202  unsigned position, unsigned size)
203 {
204  memset(slice, 0, sizeof(*slice));
205  slice->BSNALunitDataLocation = position;
206  slice->SliceBytesInBuffer = size;
207  slice->wBadSliceChopping = 0;
208 }
209 
210 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
211 {
212  int i;
213  for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
214  if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
215  return i;
216  }
217  return 0x7f;
218 }
219 
220 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
221  const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
222 {
223  const H264Context *h = avctx->priv_data;
224  H264SliceContext *sl = &h->slice_ctx[0];
226  unsigned list;
227 
228  memset(slice, 0, sizeof(*slice));
229  slice->BSNALunitDataLocation = position;
230  slice->SliceBytesInBuffer = size;
231  slice->wBadSliceChopping = 0;
232 
233  slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
234  slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
235  slice->BitOffsetToSliceData = get_bits_count(&sl->gb) - 8;
236  slice->slice_type = ff_h264_get_slice_type(sl);
237  if (sl->slice_type_fixed)
238  slice->slice_type += 5;
239  slice->luma_log2_weight_denom = sl->pwt.luma_log2_weight_denom;
240  slice->chroma_log2_weight_denom = sl->pwt.chroma_log2_weight_denom;
241  if (sl->list_count > 0)
242  slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
243  if (sl->list_count > 1)
244  slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
245  slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
246  slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
247  slice->Reserved8Bits = 0;
248 
249  for (list = 0; list < 2; list++) {
250  unsigned i;
251  for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
252  if (list < sl->list_count && i < sl->ref_count[list]) {
253  const H264Picture *r = sl->ref_list[list][i].parent;
254  unsigned plane;
255  unsigned index;
256  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
257  index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
258  else
259  index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
260  fill_picture_entry(&slice->RefPicList[list][i], index,
261  sl->ref_list[list][i].reference == PICT_BOTTOM_FIELD);
262  for (plane = 0; plane < 3; plane++) {
263  int w, o;
264  if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
265  w = sl->pwt.luma_weight[i][list][0];
266  o = sl->pwt.luma_weight[i][list][1];
267  } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
268  w = sl->pwt.chroma_weight[i][list][plane-1][0];
269  o = sl->pwt.chroma_weight[i][list][plane-1][1];
270  } else {
271  w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
273  o = 0;
274  }
275  slice->Weights[list][i][plane][0] = w;
276  slice->Weights[list][i][plane][1] = o;
277  }
278  } else {
279  unsigned plane;
280  slice->RefPicList[list][i].bPicEntry = 0xff;
281  for (plane = 0; plane < 3; plane++) {
282  slice->Weights[list][i][plane][0] = 0;
283  slice->Weights[list][i][plane][1] = 0;
284  }
285  }
286  }
287  }
288  slice->slice_qs_delta = 0; /* XXX not implemented by FFmpeg */
289  slice->slice_qp_delta = sl->qscale - h->ps.pps->init_qp;
290  slice->redundant_pic_cnt = sl->redundant_pic_count;
291  if (sl->slice_type == AV_PICTURE_TYPE_B)
292  slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
293  slice->cabac_init_idc = h->ps.pps->cabac ? sl->cabac_init_idc : 0;
294  if (sl->deblocking_filter < 2)
295  slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
296  else
297  slice->disable_deblocking_filter_idc = sl->deblocking_filter;
298  slice->slice_id = h->current_slice - 1;
299 }
300 
304 {
305  const H264Context *h = avctx->priv_data;
306  const unsigned mb_count = h->mb_width * h->mb_height;
308  const H264Picture *current_picture = h->cur_pic_ptr;
309  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
310  DXVA_Slice_H264_Short *slice = NULL;
311  void *dxva_data_ptr = NULL;
312  uint8_t *dxva_data, *current, *end;
313  unsigned dxva_size = 0;
314  void *slice_data;
315  unsigned slice_size;
316  unsigned padding;
317  unsigned i;
318  unsigned type;
319 
320  /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
321 #if CONFIG_D3D11VA
322  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
323  type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
324  if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
325  D3D11VA_CONTEXT(ctx)->decoder,
326  type,
327  &dxva_size, &dxva_data_ptr)))
328  return -1;
329  }
330 #endif
331 #if CONFIG_DXVA2
332  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
333  type = DXVA2_BitStreamDateBufferType;
334  if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
335  type,
336  &dxva_data_ptr, &dxva_size)))
337  return -1;
338  }
339 #endif
340 
341  dxva_data = dxva_data_ptr;
342  current = dxva_data;
343  end = dxva_data + dxva_size;
344 
345  for (i = 0; i < ctx_pic->slice_count; i++) {
346  static const uint8_t start_code[] = { 0, 0, 1 };
347  static const unsigned start_code_size = sizeof(start_code);
348  unsigned position, size;
349 
350  assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
351  offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
352  assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
353  offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
354 
355  if (is_slice_short(avctx, ctx))
356  slice = &ctx_pic->slice_short[i];
357  else
358  slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
359 
360  position = slice->BSNALunitDataLocation;
361  size = slice->SliceBytesInBuffer;
362  if (start_code_size + size > end - current) {
363  av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
364  break;
365  }
366 
367  slice->BSNALunitDataLocation = current - dxva_data;
368  slice->SliceBytesInBuffer = start_code_size + size;
369 
370  if (!is_slice_short(avctx, ctx)) {
371  DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
372  if (i < ctx_pic->slice_count - 1)
373  slice_long->NumMbsForSlice =
374  slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
375  else
376  slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
377  }
378 
379  memcpy(current, start_code, start_code_size);
380  current += start_code_size;
381 
382  memcpy(current, &ctx_pic->bitstream[position], size);
383  current += size;
384  }
385  padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
386  if (slice && padding > 0) {
387  memset(current, 0, padding);
388  current += padding;
389 
390  slice->SliceBytesInBuffer += padding;
391  }
392 #if CONFIG_D3D11VA
393  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
394  if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
395  return -1;
396 #endif
397 #if CONFIG_DXVA2
398  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
399  if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
400  return -1;
401 #endif
402  if (i < ctx_pic->slice_count)
403  return -1;
404 
405 #if CONFIG_D3D11VA
406  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
407  D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
408  memset(dsc11, 0, sizeof(*dsc11));
409  dsc11->BufferType = type;
410  dsc11->DataSize = current - dxva_data;
411  dsc11->NumMBsInBuffer = mb_count;
412 
413  type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
414 
415  av_assert0((dsc11->DataSize & 127) == 0);
416  }
417 #endif
418 #if CONFIG_DXVA2
419  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
420  DXVA2_DecodeBufferDesc *dsc2 = bs;
421  memset(dsc2, 0, sizeof(*dsc2));
422  dsc2->CompressedBufferType = type;
423  dsc2->DataSize = current - dxva_data;
424  dsc2->NumMBsInBuffer = mb_count;
425 
426  type = DXVA2_SliceControlBufferType;
427 
428  av_assert0((dsc2->DataSize & 127) == 0);
429  }
430 #endif
431 
432  if (is_slice_short(avctx, ctx)) {
433  slice_data = ctx_pic->slice_short;
434  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
435  } else {
436  slice_data = ctx_pic->slice_long;
437  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
438  }
439  return ff_dxva2_commit_buffer(avctx, ctx, sc,
440  type,
441  slice_data, slice_size, mb_count);
442 }
443 
444 
446  av_unused const uint8_t *buffer,
447  av_unused uint32_t size)
448 {
449  const H264Context *h = avctx->priv_data;
452 
453  if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
454  DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
455  DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
456  return -1;
457  assert(ctx_pic);
458 
459  /* Fill up DXVA_PicParams_H264 */
460  fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
461 
462  /* Fill up DXVA_Qmatrix_H264 */
463  fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
464 
465  ctx_pic->slice_count = 0;
466  ctx_pic->bitstream_size = 0;
467  ctx_pic->bitstream = NULL;
468  return 0;
469 }
470 
472  const uint8_t *buffer,
473  uint32_t size)
474 {
475  const H264Context *h = avctx->priv_data;
476  const H264SliceContext *sl = &h->slice_ctx[0];
478  const H264Picture *current_picture = h->cur_pic_ptr;
479  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
480  unsigned position;
481 
482  if (ctx_pic->slice_count >= MAX_SLICES)
483  return -1;
484 
485  if (!ctx_pic->bitstream)
486  ctx_pic->bitstream = buffer;
487  ctx_pic->bitstream_size += size;
488 
489  position = buffer - ctx_pic->bitstream;
490  if (is_slice_short(avctx, ctx))
491  fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
492  position, size);
493  else
494  fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
495  &ctx_pic->pp, position, size);
496  ctx_pic->slice_count++;
497 
499  ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
500  return 0;
501 }
502 
504 {
505  H264Context *h = avctx->priv_data;
506  H264SliceContext *sl = &h->slice_ctx[0];
507  struct dxva2_picture_context *ctx_pic =
509  int ret;
510 
511  if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
512  return -1;
513  ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
514  &ctx_pic->pp, sizeof(ctx_pic->pp),
515  &ctx_pic->qm, sizeof(ctx_pic->qm),
517  if (!ret)
518  ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
519  return ret;
520 }
521 
522 #if CONFIG_H264_DXVA2_HWACCEL
523 AVHWAccel ff_h264_dxva2_hwaccel = {
524  .name = "h264_dxva2",
525  .type = AVMEDIA_TYPE_VIDEO,
526  .id = AV_CODEC_ID_H264,
527  .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
528  .start_frame = dxva2_h264_start_frame,
529  .decode_slice = dxva2_h264_decode_slice,
530  .end_frame = dxva2_h264_end_frame,
531  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
532 };
533 #endif
534 
535 #if CONFIG_H264_D3D11VA_HWACCEL
536 AVHWAccel ff_h264_d3d11va_hwaccel = {
537  .name = "h264_d3d11va",
538  .type = AVMEDIA_TYPE_VIDEO,
539  .id = AV_CODEC_ID_H264,
540  .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
541  .start_frame = dxva2_h264_start_frame,
542  .decode_slice = dxva2_h264_decode_slice,
543  .end_frame = dxva2_h264_end_frame,
544  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
545 };
546 #endif
int chroma_format_idc
Definition: h264_ps.h:47
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:462
int weighted_bipred_idc
Definition: h264_ps.h:115
int chroma_qp_index_offset[2]
Definition: h264_ps.h:118
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:43
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264_ps.h:113
int flag
Definition: cpu.c:34
Picture parameter set.
Definition: h264_ps.h:107
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1887
int frame_mbs_only_flag
Definition: h264_ps.h:60
int mb_height
Definition: h264dec.h:439
DXVA_PicParams_H264 pp
Definition: dxva2_h264.c:36
H264Context.
Definition: h264dec.h:341
AVFrame * f
Definition: h264dec.h:129
H264Picture * long_ref[32]
Definition: h264dec.h:466
int picture_structure
Definition: h264dec.h:412
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264dec.h:271
Switching Intra.
Definition: avutil.h:272
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:220
DXVA_SliceInfo slice[MAX_SLICES]
Definition: dxva2_mpeg2.c:37
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
uint8_t scaling_matrix4[6][16]
Definition: h264_ps.h:123
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264_ps.h:119
const PPS * pps
Definition: h264_ps.h:143
uint8_t
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:2991
int slice_alpha_c0_offset
Definition: h264dec.h:198
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Definition: h264_ps.h:97
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:194
int cabac
entropy_coding_mode_flag
Definition: h264_ps.h:109
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:125
#define PICT_BOTTOM_FIELD
Definition: mpegutils.h:38
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:199
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264_ps.h:121
ptrdiff_t size
Definition: opengl_enc.c:101
int luma_weight[48][2][2]
Definition: h264_parse.h:38
H264Picture * parent
Definition: h264dec.h:178
#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:104
H.264 parameter set handling.
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264_ps.h:61
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:50
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264_ps.h:120
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 deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264dec.h:197
simple assert() macros that are a bit more flexible than ISO C assert().
int weighted_pred
weighted_pred_flag
Definition: h264_ps.h:114
#define PICT_TOP_FIELD
Definition: mpegutils.h:37
int direct_spatial_mv_pred
Definition: h264dec.h:255
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264dec.h:149
#define MAX_SLICES
Definition: dxva2_hevc.c:32
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264_ps.h:98
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:2001
int delta_pic_order_always_zero_flag
Definition: h264_ps.h:52
static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_PicParams_H264 *pp)
Definition: dxva2_h264.c:52
uint8_t scaling_matrix8[6][64]
Definition: h264_ps.h:124
int ref_frame_count
num_ref_frames
Definition: h264_ps.h:56
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3699
#define FFMIN(a, b)
Definition: common.h:96
int reference
Definition: h264dec.h:160
static const chunk_decoder decoder[8]
Definition: dfa.c:327
static const uint8_t start_code[]
Definition: h264dec.c:657
int redundant_pic_count
Definition: h264dec.h:248
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO
Work around for Direct3D11 and old Intel GPUs with ClearVideo interface.
Definition: d3d11va.h:49
H264PredWeightTable pwt
Definition: h264dec.h:201
AVFormatContext * ctx
Definition: movenc.c:48
int init_qp
pic_init_qp_minus26 + 26
Definition: h264_ps.h:116
H.264 / AVC / MPEG-4 part10 codec.
H264SliceContext * slice_ctx
Definition: h264dec.h:354
int direct_8x8_inference_flag
Definition: h264_ps.h:62
int reference
Definition: h264dec.h:174
unsigned bitstream_size
Definition: dxva2_h264.c:42
#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:40
int pic_order_present
pic_order_present_flag
Definition: h264_ps.h:110
static void fill_slice_short(DXVA_Slice_H264_Short *slice, unsigned position, unsigned size)
Definition: dxva2_h264.c:201
static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
Definition: dxva2_h264.c:210
AVCodecContext * avctx
Definition: h264dec.h:343
H264Picture * short_ref[32]
Definition: h264dec.h:465
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx, const AVDXVAContext *ctx, const AVFrame *frame)
Definition: dxva2.c:37
int field_poc[2]
top/bottom POC
Definition: h264dec.h:147
main external API structure.
Definition: avcodec.h:1659
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:52
GLint GLenum type
Definition: opengl_enc.c:105
int index
Definition: gxfenc.c:89
H264Picture * cur_pic_ptr
Definition: h264dec.h:350
static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
Definition: dxva2_h264.c:168
const uint8_t ff_zigzag_direct[64]
Definition: mathtables.c:98
const SPS * sps
Definition: h264_ps.h:144
void DECODER_BUFFER_DESC
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
Definition: h264_ps.h:51
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer. ...
Definition: pixfmt.h:148
static int dxva2_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: dxva2_h264.c:471
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264_ps.h:122
unsigned int list_count
Definition: h264dec.h:272
#define FAILED(hr)
Definition: windows2linux.h:48
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *sc)
Definition: dxva2_h264.c:301
const uint8_t * bitstream
Definition: dxva2_h264.c:41
int init_qs
pic_init_qs_minus26 + 26
Definition: h264_ps.h:117
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
if(ret< 0)
Definition: vf_mcdeint.c:282
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264_ps.h:49
H264ParamSets ps
Definition: h264dec.h:458
Bi-dir predicted.
Definition: avutil.h:270
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264_ps.h:96
static int dxva2_h264_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: dxva2_h264.c:445
static int dxva2_h264_end_frame(AVCodecContext *avctx)
Definition: dxva2_h264.c:503
void * priv_data
Definition: avcodec.h:1701
#define PICT_FRAME
Definition: mpegutils.h:39
int mb_width
Definition: h264dec.h:439
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264dec.h:490
int slice_group_count
num_slice_groups_minus1 + 1
Definition: h264_ps.h:111
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264dec.h:273
int slice_type_fixed
Definition: h264dec.h:189
HW decoding through Direct3D11, Picture.data[3] contains a ID3D11VideoDecoderOutputView pointer...
Definition: pixfmt.h:242
int slice_beta_offset
Definition: h264dec.h:199
int level_idc
Definition: h264_ps.h:46
DXVA_Slice_H264_Short slice_short[MAX_SLICES]
Definition: dxva2_h264.c:39
int nal_ref_idc
Definition: h264dec.h:446
GetBitContext gb
Definition: h264dec.h:183
int cabac_init_idc
Definition: h264dec.h:324
for(j=16;j >0;--j)
static void fill_picture_entry(DXVA_PicEntry_H264 *pic, unsigned index, unsigned flag)
Definition: dxva2_h264.c:45
GLuint buffer
Definition: opengl_enc.c:102
#define av_unused
Definition: attributes.h:126
int short_ref_count
number of actual short term references
Definition: h264dec.h:481
int mb_slice_group_map_type
Definition: h264_ps.h:112
DXVA_Qmatrix_H264 qm
Definition: dxva2_h264.c:37