Libav
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 Libav.
7  *
8  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "h264dec.h"
24 #include "h264data.h"
25 #include "h264_ps.h"
26 #include "mpegutils.h"
27 
28 // The headers above may include w32threads.h, which uses the original
29 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
30 // potentially newer version.
31 #include "dxva2_internal.h"
32 
34  DXVA_PicParams_H264 pp;
35  DXVA_Qmatrix_H264 qm;
36  unsigned slice_count;
37  DXVA_Slice_H264_Short slice_short[MAX_SLICES];
38  DXVA_Slice_H264_Long slice_long[MAX_SLICES];
40  unsigned bitstream_size;
41 };
42 
43 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
44  unsigned index, unsigned flag)
45 {
46  assert((index&0x7f) == index && (flag&0x01) == flag);
47  pic->bPicEntry = index | (flag << 7);
48 }
49 
51  DXVA_PicParams_H264 *pp)
52 {
53  const H264Picture *current_picture = h->cur_pic_ptr;
54  const SPS *sps = h->ps.sps;
55  const PPS *pps = h->ps.pps;
56  int i, j;
57 
58  memset(pp, 0, sizeof(*pp));
59  /* Configure current picture */
60  fill_picture_entry(&pp->CurrPic,
61  ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
63  /* Configure the set of references */
64  pp->UsedForReferenceFlags = 0;
65  pp->NonExistingFrameFlags = 0;
66  for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
67  const H264Picture *r;
68  if (j < h->short_ref_count) {
69  r = h->short_ref[j++];
70  } else {
71  r = NULL;
72  while (!r && j < h->short_ref_count + 16)
73  r = h->long_ref[j++ - h->short_ref_count];
74  }
75  if (r) {
76  fill_picture_entry(&pp->RefFrameList[i],
77  ff_dxva2_get_surface_index(avctx, ctx, r->f),
78  r->long_ref != 0);
79 
80  if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
81  pp->FieldOrderCntList[i][0] = r->field_poc[0];
82  if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
83  pp->FieldOrderCntList[i][1] = r->field_poc[1];
84 
85  pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
86  if (r->reference & PICT_TOP_FIELD)
87  pp->UsedForReferenceFlags |= 1 << (2*i + 0);
89  pp->UsedForReferenceFlags |= 1 << (2*i + 1);
90  } else {
91  pp->RefFrameList[i].bPicEntry = 0xff;
92  pp->FieldOrderCntList[i][0] = 0;
93  pp->FieldOrderCntList[i][1] = 0;
94  pp->FrameNumList[i] = 0;
95  }
96  }
97 
98  pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
99  pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
100  pp->num_ref_frames = sps->ref_frame_count;
101 
102  pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
103  ((sps->mb_aff &&
104  (h->picture_structure == PICT_FRAME)) << 1) |
105  (sps->residual_color_transform_flag << 2) |
106  /* sp_for_switch_flag (not implemented by Libav) */
107  (0 << 3) |
108  (sps->chroma_format_idc << 4) |
109  ((h->nal_ref_idc != 0) << 6) |
110  (pps->constrained_intra_pred << 7) |
111  (pps->weighted_pred << 8) |
112  (pps->weighted_bipred_idc << 9) |
113  /* MbsConsecutiveFlag */
114  (1 << 11) |
115  (sps->frame_mbs_only_flag << 12) |
116  (pps->transform_8x8_mode << 13) |
117  ((sps->level_idc >= 31) << 14) |
118  /* IntraPicFlag (Modified if we detect a non
119  * intra slice in dxva2_h264_decode_slice) */
120  (1 << 15);
121 
122  pp->bit_depth_luma_minus8 = sps->bit_depth_luma - 8;
123  pp->bit_depth_chroma_minus8 = sps->bit_depth_chroma - 8;
124  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
125  pp->Reserved16Bits = 0;
126  else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
127  pp->Reserved16Bits = 0x34c;
128  else
129  pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
130  pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
131  pp->CurrFieldOrderCnt[0] = 0;
132  if ((h->picture_structure & PICT_TOP_FIELD) &&
133  current_picture->field_poc[0] != INT_MAX)
134  pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
135  pp->CurrFieldOrderCnt[1] = 0;
137  current_picture->field_poc[1] != INT_MAX)
138  pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
139  pp->pic_init_qs_minus26 = pps->init_qs - 26;
140  pp->chroma_qp_index_offset = pps->chroma_qp_index_offset[0];
141  pp->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
142  pp->ContinuationFlag = 1;
143  pp->pic_init_qp_minus26 = pps->init_qp - 26;
144  pp->num_ref_idx_l0_active_minus1 = pps->ref_count[0] - 1;
145  pp->num_ref_idx_l1_active_minus1 = pps->ref_count[1] - 1;
146  pp->Reserved8BitsA = 0;
147  pp->frame_num = h->poc.frame_num;
148  pp->log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4;
149  pp->pic_order_cnt_type = sps->poc_type;
150  if (sps->poc_type == 0)
151  pp->log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4;
152  else if (sps->poc_type == 1)
153  pp->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
154  pp->direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
155  pp->entropy_coding_mode_flag = pps->cabac;
156  pp->pic_order_present_flag = pps->pic_order_present;
157  pp->num_slice_groups_minus1 = pps->slice_group_count - 1;
158  pp->slice_group_map_type = pps->mb_slice_group_map_type;
159  pp->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
160  pp->redundant_pic_cnt_present_flag= pps->redundant_pic_cnt_present;
161  pp->Reserved8BitsB = 0;
162  pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by Libav */
163  //pp->SliceGroupMap[810]; /* XXX not implemented by Libav */
164 }
165 
166 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
167 {
168  unsigned i, j;
169  const PPS *pps = h->ps.pps;
170  memset(qm, 0, sizeof(*qm));
171  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
172  for (i = 0; i < 6; i++)
173  for (j = 0; j < 16; j++)
174  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][j];
175 
176  for (i = 0; i < 64; i++) {
177  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][i];
178  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][i];
179  }
180  } else {
181  for (i = 0; i < 6; i++)
182  for (j = 0; j < 16; j++)
183  qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][ff_zigzag_scan[j]];
184 
185  for (i = 0; i < 64; i++) {
186  qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][ff_zigzag_direct[i]];
187  qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][ff_zigzag_direct[i]];
188  }
189  }
190 }
191 
192 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
193 {
194  assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
195  DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
196  return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
197 }
198 
199 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
200  unsigned position, unsigned size)
201 {
202  memset(slice, 0, sizeof(*slice));
203  slice->BSNALunitDataLocation = position;
204  slice->SliceBytesInBuffer = size;
205  slice->wBadSliceChopping = 0;
206 }
207 
208 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
209 {
210  int i;
211  for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
212  if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
213  return i;
214  }
215  return 0x7f;
216 }
217 
218 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
219  const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
220 {
221  const H264Context *h = avctx->priv_data;
222  H264SliceContext *sl = &h->slice_ctx[0];
224  unsigned list;
225 
226  memset(slice, 0, sizeof(*slice));
227  slice->BSNALunitDataLocation = position;
228  slice->SliceBytesInBuffer = size;
229  slice->wBadSliceChopping = 0;
230 
231  slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
232  slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
233  slice->BitOffsetToSliceData = get_bits_count(&sl->gb);
234  slice->slice_type = ff_h264_get_slice_type(sl);
235  if (sl->slice_type_fixed)
236  slice->slice_type += 5;
237  slice->luma_log2_weight_denom = sl->pwt.luma_log2_weight_denom;
238  slice->chroma_log2_weight_denom = sl->pwt.chroma_log2_weight_denom;
239  if (sl->list_count > 0)
240  slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
241  if (sl->list_count > 1)
242  slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
243  slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
244  slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
245  slice->Reserved8Bits = 0;
246 
247  for (list = 0; list < 2; list++) {
248  unsigned i;
249  for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
250  if (list < sl->list_count && i < sl->ref_count[list]) {
251  const H264Picture *r = sl->ref_list[list][i].parent;
252  unsigned plane;
253  unsigned index;
254  if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
255  index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
256  else
257  index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
258  fill_picture_entry(&slice->RefPicList[list][i], index,
260  for (plane = 0; plane < 3; plane++) {
261  int w, o;
262  if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
263  w = sl->pwt.luma_weight[i][list][0];
264  o = sl->pwt.luma_weight[i][list][1];
265  } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
266  w = sl->pwt.chroma_weight[i][list][plane-1][0];
267  o = sl->pwt.chroma_weight[i][list][plane-1][1];
268  } else {
269  w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
271  o = 0;
272  }
273  slice->Weights[list][i][plane][0] = w;
274  slice->Weights[list][i][plane][1] = o;
275  }
276  } else {
277  unsigned plane;
278  slice->RefPicList[list][i].bPicEntry = 0xff;
279  for (plane = 0; plane < 3; plane++) {
280  slice->Weights[list][i][plane][0] = 0;
281  slice->Weights[list][i][plane][1] = 0;
282  }
283  }
284  }
285  }
286  slice->slice_qs_delta = 0; /* XXX not implemented by Libav */
287  slice->slice_qp_delta = sl->qscale - h->ps.pps->init_qp;
288  slice->redundant_pic_cnt = sl->redundant_pic_count;
289  if (sl->slice_type == AV_PICTURE_TYPE_B)
290  slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
291  slice->cabac_init_idc = h->ps.pps->cabac ? sl->cabac_init_idc : 0;
292  if (sl->deblocking_filter < 2)
293  slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
294  else
295  slice->disable_deblocking_filter_idc = sl->deblocking_filter;
296  slice->slice_id = h->current_slice - 1;
297 }
298 
302 {
303  const H264Context *h = avctx->priv_data;
304  const unsigned mb_count = h->mb_width * h->mb_height;
306  const H264Picture *current_picture = h->cur_pic_ptr;
307  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
308  DXVA_Slice_H264_Short *slice = NULL;
309  void *dxva_data_ptr;
310  uint8_t *dxva_data, *current, *end;
311  unsigned dxva_size;
312  void *slice_data;
313  unsigned slice_size;
314  unsigned padding;
315  unsigned i;
316  unsigned type;
317 
318  /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
319 #if CONFIG_D3D11VA
320  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
321  type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
322  if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
323  D3D11VA_CONTEXT(ctx)->decoder,
324  type,
325  &dxva_size, &dxva_data_ptr)))
326  return -1;
327  }
328 #endif
329 #if CONFIG_DXVA2
330  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
331  type = DXVA2_BitStreamDateBufferType;
332  if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
333  type,
334  &dxva_data_ptr, &dxva_size)))
335  return -1;
336  }
337 #endif
338 
339  dxva_data = dxva_data_ptr;
340  current = dxva_data;
341  end = dxva_data + dxva_size;
342 
343  for (i = 0; i < ctx_pic->slice_count; i++) {
344  static const uint8_t start_code[] = { 0, 0, 1 };
345  static const unsigned start_code_size = sizeof(start_code);
346  unsigned position, size;
347 
348  assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
349  offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
350  assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
351  offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
352 
353  if (is_slice_short(avctx, ctx))
354  slice = &ctx_pic->slice_short[i];
355  else
356  slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
357 
358  position = slice->BSNALunitDataLocation;
359  size = slice->SliceBytesInBuffer;
360  if (start_code_size + size > end - current) {
361  av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
362  break;
363  }
364 
365  slice->BSNALunitDataLocation = current - dxva_data;
366  slice->SliceBytesInBuffer = start_code_size + size;
367 
368  if (!is_slice_short(avctx, ctx)) {
369  DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
370  if (i < ctx_pic->slice_count - 1)
371  slice_long->NumMbsForSlice =
372  slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
373  else
374  slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
375  }
376 
377  memcpy(current, start_code, start_code_size);
378  current += start_code_size;
379 
380  memcpy(current, &ctx_pic->bitstream[position], size);
381  current += size;
382  }
383  padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
384  if (slice && padding > 0) {
385  memset(current, 0, padding);
386  current += padding;
387 
388  slice->SliceBytesInBuffer += padding;
389  }
390 #if CONFIG_D3D11VA
391  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
392  if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
393  return -1;
394 #endif
395 #if CONFIG_DXVA2
396  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
397  if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
398  return -1;
399 #endif
400  if (i < ctx_pic->slice_count)
401  return -1;
402 
403 #if CONFIG_D3D11VA
404  if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
405  D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
406  memset(dsc11, 0, sizeof(*dsc11));
407  dsc11->BufferType = type;
408  dsc11->DataSize = current - dxva_data;
409  dsc11->NumMBsInBuffer = mb_count;
410 
411  type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
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 #endif
425 
426  if (is_slice_short(avctx, ctx)) {
427  slice_data = ctx_pic->slice_short;
428  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
429  } else {
430  slice_data = ctx_pic->slice_long;
431  slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
432  }
433  assert((bs->DataSize & 127) == 0);
434  return ff_dxva2_commit_buffer(avctx, ctx, sc,
435  type,
436  slice_data, slice_size, mb_count);
437 }
438 
439 
441  av_unused const uint8_t *buffer,
442  av_unused uint32_t size)
443 {
444  const H264Context *h = avctx->priv_data;
447 
448  if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
449  DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
450  DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
451  return -1;
452  assert(ctx_pic);
453 
454  /* Fill up DXVA_PicParams_H264 */
455  fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
456 
457  /* Fill up DXVA_Qmatrix_H264 */
458  fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
459 
460  ctx_pic->slice_count = 0;
461  ctx_pic->bitstream_size = 0;
462  ctx_pic->bitstream = NULL;
463  return 0;
464 }
465 
467  const uint8_t *buffer,
468  uint32_t size)
469 {
470  const H264Context *h = avctx->priv_data;
471  const H264SliceContext *sl = &h->slice_ctx[0];
473  const H264Picture *current_picture = h->cur_pic_ptr;
474  struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
475  unsigned position;
476 
477  if (ctx_pic->slice_count >= MAX_SLICES)
478  return -1;
479 
480  if (!ctx_pic->bitstream)
481  ctx_pic->bitstream = buffer;
482  ctx_pic->bitstream_size += size;
483 
484  position = buffer - ctx_pic->bitstream;
485  if (is_slice_short(avctx, ctx))
486  fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
487  position, size);
488  else
489  fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
490  &ctx_pic->pp, position, size);
491  ctx_pic->slice_count++;
492 
494  ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
495  return 0;
496 }
497 
499 {
500  H264Context *h = avctx->priv_data;
501  H264SliceContext *sl = &h->slice_ctx[0];
502  struct dxva2_picture_context *ctx_pic =
504  int ret;
505 
506  if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
507  return -1;
508  ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
509  &ctx_pic->pp, sizeof(ctx_pic->pp),
510  &ctx_pic->qm, sizeof(ctx_pic->qm),
512  if (!ret)
513  ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
514  return ret;
515 }
516 
517 #if CONFIG_H264_DXVA2_HWACCEL
518 AVHWAccel ff_h264_dxva2_hwaccel = {
519  .name = "h264_dxva2",
520  .type = AVMEDIA_TYPE_VIDEO,
521  .id = AV_CODEC_ID_H264,
522  .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
523  .start_frame = dxva2_h264_start_frame,
524  .decode_slice = dxva2_h264_decode_slice,
525  .end_frame = dxva2_h264_end_frame,
526  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
527 };
528 #endif
529 
530 #if CONFIG_H264_D3D11VA_HWACCEL
531 AVHWAccel ff_h264_d3d11va_hwaccel = {
532  .name = "h264_d3d11va",
533  .type = AVMEDIA_TYPE_VIDEO,
534  .id = AV_CODEC_ID_H264,
535  .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
536  .start_frame = dxva2_h264_start_frame,
537  .decode_slice = dxva2_h264_decode_slice,
538  .end_frame = dxva2_h264_end_frame,
539  .frame_priv_data_size = sizeof(struct dxva2_picture_context),
540 };
541 #endif
int chroma_format_idc
Definition: h264_ps.h:47
int long_ref
1->long term reference 0->short term reference
Definition: h264dec.h:153
H264POCContext poc
Definition: h264dec.h:448
int size
const uint8_t ff_zigzag_scan[16]
Definition: mathtables.c:126
int weighted_bipred_idc
Definition: h264_ps.h:114
int chroma_qp_index_offset[2]
Definition: h264_ps.h:117
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:112
int flag
Definition: cpu.c:35
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
Picture parameter set.
Definition: h264_ps.h:106
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1621
int frame_mbs_only_flag
Definition: h264_ps.h:61
int mb_height
Definition: h264dec.h:425
#define FF_ARRAY_ELEMS(a)
DXVA_PicParams_H264 pp
Definition: dxva2_h264.c:34
H264Context.
Definition: h264dec.h:334
AVFrame * f
Definition: h264dec.h:128
H264Picture * long_ref[32]
Definition: h264dec.h:451
int picture_structure
Definition: h264dec.h:398
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264dec.h:264
Switching Intra.
Definition: avutil.h:264
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:218
DXVA_SliceInfo slice[MAX_SLICES]
Definition: dxva2_mpeg2.c:37
uint8_t scaling_matrix4[6][16]
Definition: h264_ps.h:122
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264_ps.h:118
const PPS * pps
Definition: h264_ps.h:138
static char buffer[20]
Definition: seek.c:32
uint8_t
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:2708
int slice_alpha_c0_offset
Definition: h264dec.h:191
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Definition: h264_ps.h:98
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:192
int cabac
entropy_coding_mode_flag
Definition: h264_ps.h:108
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:182
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264_ps.h:120
int luma_weight[48][2][2]
Definition: h264_parse.h:38
H264Picture * parent
Definition: h264dec.h:171
#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG
Work around for Direct3D11 and old UVD/UVD+ ATI video cards.
Definition: d3d11va.h:48
#define r
Definition: input.c:51
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264dec.c:85
H.264 parameter set handling.
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264_ps.h:62
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:124
int poc_type
pic_order_cnt_type
Definition: h264_ps.h:50
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264_ps.h:119
void * hwaccel_picture_private
hardware accelerator private data
Definition: h264dec.h:141
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264dec.h:190
int weighted_pred
weighted_pred_flag
Definition: h264_ps.h:113
#define PICT_TOP_FIELD
Definition: mpegutils.h:37
int direct_spatial_mv_pred
Definition: h264dec.h:248
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264dec.h:148
#define MAX_SLICES
Definition: dxva2_hevc.c:32
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264_ps.h:99
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:1928
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:50
uint8_t scaling_matrix8[6][64]
Definition: h264_ps.h:123
int ref_frame_count
num_ref_frames
Definition: h264_ps.h:56
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:3244
#define FFMIN(a, b)
Definition: common.h:66
int reference
Definition: h264dec.h:159
static const chunk_decoder decoder[8]
Definition: dfa.c:322
int redundant_pic_count
Definition: h264dec.h:241
#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:194
AVFormatContext * ctx
Definition: movenc.c:48
int init_qp
pic_init_qp_minus26 + 26
Definition: h264_ps.h:115
H.264 / AVC / MPEG-4 part10 codec.
H264SliceContext * slice_ctx
Definition: h264dec.h:346
int direct_8x8_inference_flag
Definition: h264_ps.h:63
unsigned bitstream_size
Definition: dxva2_h264.c:40
#define FIELD_OR_MBAFF_PICTURE(h)
Definition: h264dec.h:91
DXVA_Slice_H264_Long slice_long[MAX_SLICES]
Definition: dxva2_h264.c:38
if(ac->has_optimized_func)
int pic_order_present
pic_order_present_flag
Definition: h264_ps.h:109
NULL
Definition: eval.c:55
static void fill_slice_short(DXVA_Slice_H264_Short *slice, unsigned position, unsigned size)
Definition: dxva2_h264.c:199
static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
Definition: dxva2_h264.c:208
AVCodecContext * avctx
Definition: h264dec.h:336
H264Picture * short_ref[32]
Definition: h264dec.h:450
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:146
main external API structure.
Definition: avcodec.h:1409
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
int index
Definition: gxfenc.c:72
H264Picture * cur_pic_ptr
Definition: h264dec.h:343
static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
Definition: dxva2_h264.c:166
const uint8_t ff_zigzag_direct[64]
Definition: mathtables.c:115
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:137
static int dxva2_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: dxva2_h264.c:466
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264_ps.h:121
unsigned int list_count
Definition: h264dec.h:265
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *sc)
Definition: dxva2_h264.c:299
const uint8_t * bitstream
Definition: dxva2_h264.c:39
int init_qs
pic_init_qs_minus26 + 26
Definition: h264_ps.h:116
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: h264dec.h:151
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264_ps.h:49
H264ParamSets ps
Definition: h264dec.h:444
Bi-dir predicted.
Definition: avutil.h:262
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264_ps.h:97
static int dxva2_h264_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: dxva2_h264.c:440
static int dxva2_h264_end_frame(AVCodecContext *avctx)
Definition: dxva2_h264.c:498
void * priv_data
Definition: avcodec.h:1451
#define PICT_FRAME
Definition: mpegutils.h:39
int mb_width
Definition: h264dec.h:425
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264dec.h:474
int slice_group_count
num_slice_groups_minus1 + 1
Definition: h264_ps.h:110
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264dec.h:266
SPS * sps
Definition: h264_ps.h:140
int slice_type_fixed
Definition: h264dec.h:182
HW decoding through Direct3D11, Picture.data[3] contains a ID3D11VideoDecoderOutputView pointer...
Definition: pixfmt.h:222
int slice_beta_offset
Definition: h264dec.h:192
int level_idc
Definition: h264_ps.h:46
DXVA_Slice_H264_Short slice_short[MAX_SLICES]
Definition: dxva2_h264.c:37
int nal_ref_idc
Definition: h264dec.h:432
GetBitContext gb
Definition: h264dec.h:176
int cabac_init_idc
Definition: h264dec.h:317
for(j=16;j >0;--j)
static void fill_picture_entry(DXVA_PicEntry_H264 *pic, unsigned index, unsigned flag)
Definition: dxva2_h264.c:43
#define av_unused
Definition: attributes.h:86
int short_ref_count
number of actual short term references
Definition: h264dec.h:465
int mb_slice_group_map_type
Definition: h264_ps.h:111
DXVA_Qmatrix_H264 qm
Definition: dxva2_h264.c:35