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dxva2_h264.c
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1 /*
2  * DXVA2 H264 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 "dxva2_internal.h"
24 #include "h264.h"
25 #include "h264data.h"
26 #include "mpegutils.h"
27 
29  DXVA_PicParams_H264 pp;
30  DXVA_Qmatrix_H264 qm;
31  unsigned slice_count;
32  DXVA_Slice_H264_Short slice_short[MAX_SLICES];
33  DXVA_Slice_H264_Long slice_long[MAX_SLICES];
35  unsigned bitstream_size;
36 };
37 
38 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
39  unsigned index, unsigned flag)
40 {
41  assert((index&0x7f) == index && (flag&0x01) == flag);
42  pic->bPicEntry = index | (flag << 7);
43 }
44 
45 static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
46  DXVA_PicParams_H264 *pp)
47 {
48  const H264Picture *current_picture = h->cur_pic_ptr;
49  int i, j;
50 
51  memset(pp, 0, sizeof(*pp));
52  /* Configure current picture */
53  fill_picture_entry(&pp->CurrPic,
54  ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
56  /* Configure the set of references */
57  pp->UsedForReferenceFlags = 0;
58  pp->NonExistingFrameFlags = 0;
59  for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
60  const H264Picture *r;
61  if (j < h->short_ref_count) {
62  r = h->short_ref[j++];
63  } else {
64  r = NULL;
65  while (!r && j < h->short_ref_count + 16)
66  r = h->long_ref[j++ - h->short_ref_count];
67  }
68  if (r) {
69  fill_picture_entry(&pp->RefFrameList[i],
70  ff_dxva2_get_surface_index(avctx, ctx, r->f),
71  r->long_ref != 0);
72 
73  if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
74  pp->FieldOrderCntList[i][0] = r->field_poc[0];
75  if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
76  pp->FieldOrderCntList[i][1] = r->field_poc[1];
77 
78  pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
79  if (r->reference & PICT_TOP_FIELD)
80  pp->UsedForReferenceFlags |= 1 << (2*i + 0);
82  pp->UsedForReferenceFlags |= 1 << (2*i + 1);
83  } else {
84  pp->RefFrameList[i].bPicEntry = 0xff;
85  pp->FieldOrderCntList[i][0] = 0;
86  pp->FieldOrderCntList[i][1] = 0;
87  pp->FrameNumList[i] = 0;
88  }
89  }
90 
91  pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
92  pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
93  pp->num_ref_frames = h->sps.ref_frame_count;
94 
95  pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
96  ((h->sps.mb_aff &&
97  (h->picture_structure == PICT_FRAME)) << 1) |
99  /* sp_for_switch_flag (not implemented by FFmpeg) */
100  (0 << 3) |
101  (h->sps.chroma_format_idc << 4) |
102  ((h->nal_ref_idc != 0) << 6) |
103  (h->pps.constrained_intra_pred << 7) |
104  (h->pps.weighted_pred << 8) |
105  (h->pps.weighted_bipred_idc << 9) |
106  /* MbsConsecutiveFlag */
107  (1 << 11) |
108  (h->sps.frame_mbs_only_flag << 12) |
109  (h->pps.transform_8x8_mode << 13) |
110  ((h->sps.level_idc >= 31) << 14) |
111  /* IntraPicFlag (Modified if we detect a non
112  * intra slice in dxva2_h264_decode_slice) */
113  (1 << 15);
114 
115  pp->bit_depth_luma_minus8 = h->sps.bit_depth_luma - 8;
116  pp->bit_depth_chroma_minus8 = h->sps.bit_depth_chroma - 8;
117  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
118  pp->Reserved16Bits = 0;
119  else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
120  pp->Reserved16Bits = 0x34c;
121  else
122  pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
123  pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
124  pp->CurrFieldOrderCnt[0] = 0;
125  if ((h->picture_structure & PICT_TOP_FIELD) &&
126  current_picture->field_poc[0] != INT_MAX)
127  pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
128  pp->CurrFieldOrderCnt[1] = 0;
130  current_picture->field_poc[1] != INT_MAX)
131  pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
132  pp->pic_init_qs_minus26 = h->pps.init_qs - 26;
133  pp->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
134  pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
135  pp->ContinuationFlag = 1;
136  pp->pic_init_qp_minus26 = h->pps.init_qp - 26;
137  pp->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
138  pp->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
139  pp->Reserved8BitsA = 0;
140  pp->frame_num = h->frame_num;
141  pp->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
142  pp->pic_order_cnt_type = h->sps.poc_type;
143  if (h->sps.poc_type == 0)
144  pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
145  else if (h->sps.poc_type == 1)
146  pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
147  pp->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
148  pp->entropy_coding_mode_flag = h->pps.cabac;
149  pp->pic_order_present_flag = h->pps.pic_order_present;
150  pp->num_slice_groups_minus1 = h->pps.slice_group_count - 1;
151  pp->slice_group_map_type = h->pps.mb_slice_group_map_type;
152  pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
153  pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
154  pp->Reserved8BitsB = 0;
155  pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by FFmpeg */
156  //pp->SliceGroupMap[810]; /* XXX not implemented by FFmpeg */
157 }
158 
159 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
160 {
161  unsigned i, j;
162  memset(qm, 0, sizeof(*qm));
163  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
164  for (i = 0; i < 6; i++)
165  for (j = 0; j < 16; j++)
166  qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][j];
167 
168  for (i = 0; i < 64; i++) {
169  qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][i];
170  qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][i];
171  }
172  } else {
173  for (i = 0; i < 6; i++)
174  for (j = 0; j < 16; j++)
175  qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][zigzag_scan[j]];
176 
177  for (i = 0; i < 64; i++) {
178  qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][ff_zigzag_direct[i]];
179  qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][ff_zigzag_direct[i]];
180  }
181  }
182 }
183 
184 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
185 {
186  assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
187  DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
188  return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
189 }
190 
191 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
192  unsigned position, unsigned size)
193 {
194  memset(slice, 0, sizeof(*slice));
195  slice->BSNALunitDataLocation = position;
196  slice->SliceBytesInBuffer = size;
197  slice->wBadSliceChopping = 0;
198 }
199 
200 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
201 {
202  int i;
203  for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
204  if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
205  return i;
206  }
207  return 0x7f;
208 }
209 
210 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
211  const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
212 {
213  const H264Context *h = avctx->priv_data;
214  H264SliceContext *sl = &h->slice_ctx[0];
215  AVDXVAContext *ctx = avctx->hwaccel_context;
216  unsigned list;
217 
218  memset(slice, 0, sizeof(*slice));
219  slice->BSNALunitDataLocation = position;
220  slice->SliceBytesInBuffer = size;
221  slice->wBadSliceChopping = 0;
222 
223  slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
224  slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
225  slice->BitOffsetToSliceData = get_bits_count(&sl->gb);
226  slice->slice_type = ff_h264_get_slice_type(sl);
227  if (sl->slice_type_fixed)
228  slice->slice_type += 5;
229  slice->luma_log2_weight_denom = sl->luma_log2_weight_denom;
230  slice->chroma_log2_weight_denom = sl->chroma_log2_weight_denom;
231  if (sl->list_count > 0)
232  slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
233  if (sl->list_count > 1)
234  slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
235  slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
236  slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
237  slice->Reserved8Bits = 0;
238 
239  for (list = 0; list < 2; list++) {
240  unsigned i;
241  for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
242  if (list < sl->list_count && i < sl->ref_count[list]) {
243  const H264Picture *r = sl->ref_list[list][i].parent;
244  unsigned plane;
245  unsigned index;
246  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
247  index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
248  else
249  index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
250  fill_picture_entry(&slice->RefPicList[list][i], index,
252  for (plane = 0; plane < 3; plane++) {
253  int w, o;
254  if (plane == 0 && sl->luma_weight_flag[list]) {
255  w = sl->luma_weight[i][list][0];
256  o = sl->luma_weight[i][list][1];
257  } else if (plane >= 1 && sl->chroma_weight_flag[list]) {
258  w = sl->chroma_weight[i][list][plane-1][0];
259  o = sl->chroma_weight[i][list][plane-1][1];
260  } else {
261  w = 1 << (plane == 0 ? sl->luma_log2_weight_denom :
263  o = 0;
264  }
265  slice->Weights[list][i][plane][0] = w;
266  slice->Weights[list][i][plane][1] = o;
267  }
268  } else {
269  unsigned plane;
270  slice->RefPicList[list][i].bPicEntry = 0xff;
271  for (plane = 0; plane < 3; plane++) {
272  slice->Weights[list][i][plane][0] = 0;
273  slice->Weights[list][i][plane][1] = 0;
274  }
275  }
276  }
277  }
278  slice->slice_qs_delta = 0; /* XXX not implemented by FFmpeg */
279  slice->slice_qp_delta = sl->qscale - h->pps.init_qp;
280  slice->redundant_pic_cnt = sl->redundant_pic_count;
281  if (sl->slice_type == AV_PICTURE_TYPE_B)
282  slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
283  slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
284  if (sl->deblocking_filter < 2)
285  slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
286  else
287  slice->disable_deblocking_filter_idc = sl->deblocking_filter;
288  slice->slice_id = h->current_slice - 1;
289 }
290 
294 {
295  const H264Context *h = avctx->priv_data;
296  const unsigned mb_count = h->mb_width * h->mb_height;
297  AVDXVAContext *ctx = avctx->hwaccel_context;
298  const H264Picture *current_picture = h->cur_pic_ptr;
299  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
300  DXVA_Slice_H264_Short *slice = NULL;
301  void *dxva_data_ptr = NULL;
302  uint8_t *dxva_data, *current, *end;
303  unsigned dxva_size = 0;
304  void *slice_data;
305  unsigned slice_size;
306  unsigned padding;
307  unsigned i;
308  unsigned type;
309 
310  /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
311 #if CONFIG_D3D11VA
312  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
313  type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
314  if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
315  D3D11VA_CONTEXT(ctx)->decoder,
316  type,
317  &dxva_size, &dxva_data_ptr)))
318  return -1;
319  }
320 #endif
321 #if CONFIG_DXVA2
322  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
323  type = DXVA2_BitStreamDateBufferType;
324  if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
325  type,
326  &dxva_data_ptr, &dxva_size)))
327  return -1;
328  }
329 #endif
330 
331  dxva_data = dxva_data_ptr;
332  current = dxva_data;
333  end = dxva_data + dxva_size;
334 
335  for (i = 0; i < ctx_pic->slice_count; i++) {
336  static const uint8_t start_code[] = { 0, 0, 1 };
337  static const unsigned start_code_size = sizeof(start_code);
338  unsigned position, size;
339 
340  assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
341  offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
342  assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
343  offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
344 
345  if (is_slice_short(avctx, ctx))
346  slice = &ctx_pic->slice_short[i];
347  else
348  slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
349 
350  position = slice->BSNALunitDataLocation;
351  size = slice->SliceBytesInBuffer;
352  if (start_code_size + size > end - current) {
353  av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
354  break;
355  }
356 
357  slice->BSNALunitDataLocation = current - dxva_data;
358  slice->SliceBytesInBuffer = start_code_size + size;
359 
360  if (!is_slice_short(avctx, ctx)) {
361  DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
362  if (i < ctx_pic->slice_count - 1)
363  slice_long->NumMbsForSlice =
364  slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
365  else
366  slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
367  }
368 
369  memcpy(current, start_code, start_code_size);
370  current += start_code_size;
371 
372  memcpy(current, &ctx_pic->bitstream[position], size);
373  current += size;
374  }
375  padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
376  if (slice && padding > 0) {
377  memset(current, 0, padding);
378  current += padding;
379 
380  slice->SliceBytesInBuffer += padding;
381  }
382 #if CONFIG_D3D11VA
383  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
384  if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
385  return -1;
386 #endif
387 #if CONFIG_DXVA2
388  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
389  if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
390  return -1;
391 #endif
392  if (i < ctx_pic->slice_count)
393  return -1;
394 
395 #if CONFIG_D3D11VA
396  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
397  D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
398  memset(dsc11, 0, sizeof(*dsc11));
399  dsc11->BufferType = type;
400  dsc11->DataSize = current - dxva_data;
401  dsc11->NumMBsInBuffer = mb_count;
402 
403  type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
404  }
405 #endif
406 #if CONFIG_DXVA2
407  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
408  DXVA2_DecodeBufferDesc *dsc2 = bs;
409  memset(dsc2, 0, sizeof(*dsc2));
410  dsc2->CompressedBufferType = type;
411  dsc2->DataSize = current - dxva_data;
412  dsc2->NumMBsInBuffer = mb_count;
413 
414  type = DXVA2_SliceControlBufferType;
415  }
416 #endif
417 
418  if (is_slice_short(avctx, ctx)) {
419  slice_data = ctx_pic->slice_short;
420  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
421  } else {
422  slice_data = ctx_pic->slice_long;
423  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
424  }
425  assert((bs->DataSize & 127) == 0);
426  return ff_dxva2_commit_buffer(avctx, ctx, sc,
427  type,
428  slice_data, slice_size, mb_count);
429 }
430 
431 
433  av_unused const uint8_t *buffer,
434  av_unused uint32_t size)
435 {
436  const H264Context *h = avctx->priv_data;
437  AVDXVAContext *ctx = avctx->hwaccel_context;
439 
440  if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
441  DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
442  DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
443  return -1;
444  assert(ctx_pic);
445 
446  /* Fill up DXVA_PicParams_H264 */
447  fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
448 
449  /* Fill up DXVA_Qmatrix_H264 */
450  fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
451 
452  ctx_pic->slice_count = 0;
453  ctx_pic->bitstream_size = 0;
454  ctx_pic->bitstream = NULL;
455  return 0;
456 }
457 
459  const uint8_t *buffer,
460  uint32_t size)
461 {
462  const H264Context *h = avctx->priv_data;
463  const H264SliceContext *sl = &h->slice_ctx[0];
464  AVDXVAContext *ctx = avctx->hwaccel_context;
465  const H264Picture *current_picture = h->cur_pic_ptr;
466  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
467  unsigned position;
468 
469  if (ctx_pic->slice_count >= MAX_SLICES)
470  return -1;
471 
472  if (!ctx_pic->bitstream)
473  ctx_pic->bitstream = buffer;
474  ctx_pic->bitstream_size += size;
475 
476  position = buffer - ctx_pic->bitstream;
477  if (is_slice_short(avctx, ctx))
478  fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
479  position, size);
480  else
481  fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
482  &ctx_pic->pp, position, size);
483  ctx_pic->slice_count++;
484 
486  ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
487  return 0;
488 }
489 
491 {
492  H264Context *h = avctx->priv_data;
493  H264SliceContext *sl = &h->slice_ctx[0];
494  struct dxva2_picture_context *ctx_pic =
496  int ret;
497 
498  if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
499  return -1;
500  ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
501  &ctx_pic->pp, sizeof(ctx_pic->pp),
502  &ctx_pic->qm, sizeof(ctx_pic->qm),
504  if (!ret)
505  ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
506  return ret;
507 }
508 
509 #if CONFIG_H264_DXVA2_HWACCEL
510 AVHWAccel ff_h264_dxva2_hwaccel = {
511  .name = "h264_dxva2",
512  .type = AVMEDIA_TYPE_VIDEO,
513  .id = AV_CODEC_ID_H264,
514  .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
515  .start_frame = dxva2_h264_start_frame,
516  .decode_slice = dxva2_h264_decode_slice,
517  .end_frame = dxva2_h264_end_frame,
518  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
519 };
520 #endif
521 
522 #if CONFIG_H264_D3D11VA_HWACCEL
523 AVHWAccel ff_h264_d3d11va_hwaccel = {
524  .name = "h264_d3d11va",
525  .type = AVMEDIA_TYPE_VIDEO,
526  .id = AV_CODEC_ID_H264,
527  .pix_fmt = AV_PIX_FMT_D3D11VA_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
int chroma_format_idc
Definition: h264.h:177
int plane
Definition: avisynth_c.h:291
#define NULL
Definition: coverity.c:32
int long_ref
1->long term reference 0->short term reference
Definition: h264.h:318
int luma_weight[48][2][2]
Definition: h264.h:373
int weighted_bipred_idc
Definition: h264.h:244
int chroma_qp_index_offset[2]
Definition: h264.h:247
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264.h:242
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264.c:98
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1444
int frame_mbs_only_flag
Definition: h264.h:190
int mb_height
Definition: h264.h:593
#define FF_ARRAY_ELEMS(a)
DXVA_PicParams_H264 pp
Definition: dxva2_h264.c:29
H264Context.
Definition: h264.h:499
AVFrame * f
Definition: h264.h:293
H264Picture * long_ref[32]
Definition: h264.h:643
int picture_structure
Definition: h264.h:564
int luma_weight_flag[2]
7.4.3.2 luma_weight_lX_flag
Definition: h264.h:370
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264.h:442
Switching Intra.
Definition: avutil.h:271
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:210
DXVA_SliceInfo slice[MAX_SLICES]
Definition: dxva2_mpeg2.c:32
uint8_t scaling_matrix4[6][16]
Definition: h264.h:252
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264.h:248
if()
Definition: avfilter.c:975
uint8_t
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:2656
int slice_alpha_c0_offset
Definition: h264.h:362
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Definition: h264.h:227
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:67
int slice_type
Definition: h264.h:351
static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
Definition: dxva2_h264.c:184
int cabac
entropy_coding_mode_flag
Definition: h264.h:238
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:126
#define PICT_BOTTOM_FIELD
Definition: mpegutils.h:34
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:212
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264.h:250
ptrdiff_t size
Definition: opengl_enc.c:101
H264Picture * parent
Definition: h264.h:342
#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
H.264 / AVC / MPEG4 part10 codec.
int frame_num
Definition: h264.h:624
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264.h:191
#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.h:180
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264.h:249
void * hwaccel_picture_private
hardware accelerator private data
Definition: h264.h:306
const char * r
Definition: vf_curves.c:107
PPS pps
current pps
Definition: h264.h:551
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264.h:361
int weighted_pred
weighted_pred_flag
Definition: h264.h:243
#define PICT_TOP_FIELD
Definition: mpegutils.h:33
int direct_spatial_mv_pred
Definition: h264.h:426
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264.h:313
#define MAX_SLICES
Definition: dxva2_hevc.c:28
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264.h:228
int delta_pic_order_always_zero_flag
Definition: h264.h:182
#define FIELD_OR_MBAFF_PICTURE(h)
Definition: h264.h:91
static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_PicParams_H264 *pp)
Definition: dxva2_h264.c:45
uint8_t scaling_matrix8[6][64]
Definition: h264.h:253
int ref_frame_count
num_ref_frames
Definition: h264.h:186
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3294
#define FFMIN(a, b)
Definition: common.h:66
int reference
Definition: h264.h:324
ret
Definition: avfilter.c:974
static const chunk_decoder decoder[8]
Definition: dfa.c:327
int redundant_pic_count
Definition: h264.h:419
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO
Work around for Direct3D11 and old Intel GPUs with ClearVideo interface.
Definition: d3d11va.h:49
SPS sps
current sps
Definition: h264.h:550
int init_qp
pic_init_qp_minus26 + 26
Definition: h264.h:245
H264SliceContext * slice_ctx
Definition: h264.h:513
int direct_8x8_inference_flag
Definition: h264.h:192
unsigned bitstream_size
Definition: dxva2_h264.c:35
int chroma_log2_weight_denom
Definition: h264.h:369
DXVA_Slice_H264_Long slice_long[MAX_SLICES]
Definition: dxva2_h264.c:33
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:1897
int pic_order_present
pic_order_present_flag
Definition: h264.h:239
static void fill_slice_short(DXVA_Slice_H264_Short *slice, unsigned position, unsigned size)
Definition: dxva2_h264.c:191
static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
Definition: dxva2_h264.c:200
AVCodecContext * avctx
Definition: h264.h:501
H264 / AVC / MPEG4 part10 codec data table
static const uint8_t zigzag_scan[16+1]
Definition: h264data.h:54
H264Picture * short_ref[32]
Definition: h264.h:642
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx, const AVDXVAContext *ctx, const AVFrame *frame)
Definition: dxva2.c:38
int field_poc[2]
top/bottom POC
Definition: h264.h:311
main external API structure.
Definition: avcodec.h:1241
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:53
GLint GLenum type
Definition: opengl_enc.c:105
int index
Definition: gxfenc.c:89
H264Picture * cur_pic_ptr
Definition: h264.h:509
static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
Definition: dxva2_h264.c:159
const uint8_t ff_zigzag_direct[64]
Definition: mathtables.c:117
void DECODER_BUFFER_DESC
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
Definition: h264.h:181
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:458
static const uint8_t start_code[]
Definition: h264.c:1264
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264.h:251
unsigned int list_count
Definition: h264.h:443
#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:291
const uint8_t * bitstream
Definition: dxva2_h264.c:34
int init_qs
pic_init_qs_minus26 + 26
Definition: h264.h:246
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: h264.h:316
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264.h:179
Bi-dir predicted.
Definition: avutil.h:269
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264.h:226
static int dxva2_h264_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: dxva2_h264.c:432
static int dxva2_h264_end_frame(AVCodecContext *avctx)
Definition: dxva2_h264.c:490
void * priv_data
Definition: avcodec.h:1283
#define PICT_FRAME
Definition: mpegutils.h:35
int luma_log2_weight_denom
Definition: h264.h:368
int chroma_weight[48][2][2][2]
Definition: h264.h:374
int mb_width
Definition: h264.h:593
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264.h:666
int slice_group_count
num_slice_groups_minus1 + 1
Definition: h264.h:240
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264.h:444
int slice_type_fixed
Definition: h264.h:353
HW decoding through Direct3D11, Picture.data[3] contains a ID3D11VideoDecoderOutputView pointer...
Definition: pixfmt.h:256
int slice_beta_offset
Definition: h264.h:363
int level_idc
Definition: h264.h:176
DXVA_Slice_H264_Short slice_short[MAX_SLICES]
Definition: dxva2_h264.c:32
int nal_ref_idc
Definition: h264.h:600
GetBitContext gb
Definition: h264.h:347
int cabac_init_idc
Definition: h264.h:489
for(j=16;j >0;--j)
static void fill_picture_entry(DXVA_PicEntry_H264 *pic, unsigned index, unsigned flag)
Definition: dxva2_h264.c:38
GLuint buffer
Definition: opengl_enc.c:102
#define av_unused
Definition: attributes.h:118
int chroma_weight_flag[2]
7.4.3.2 chroma_weight_lX_flag
Definition: h264.h:371
int short_ref_count
number of actual short term references
Definition: h264.h:657
int mb_slice_group_map_type
Definition: h264.h:241
DXVA_Qmatrix_H264 qm
Definition: dxva2_h264.c:30