dxva2_h264: Unbreak compilation after 3176217c6
[ffmpeg.git] / libavcodec / dxva2_h264.c
1 /*
2  * DXVA2 H264 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 "h264.h"
24 #include "h264data.h"
25 #include "mpegutils.h"
26
27 // The headers above may include w32threads.h, which uses the original
28 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
29 // potentially newer version.
30 #include "dxva2_internal.h"
31
32 struct dxva2_picture_context {
33     DXVA_PicParams_H264   pp;
34     DXVA_Qmatrix_H264     qm;
35     unsigned              slice_count;
36     DXVA_Slice_H264_Short slice_short[MAX_SLICES];
37     DXVA_Slice_H264_Long  slice_long[MAX_SLICES];
38     const uint8_t         *bitstream;
39     unsigned              bitstream_size;
40 };
41
42 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
43                                unsigned index, unsigned flag)
44 {
45     assert((index&0x7f) == index && (flag&0x01) == flag);
46     pic->bPicEntry = index | (flag << 7);
47 }
48
49 static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
50                                     DXVA_PicParams_H264 *pp)
51 {
52     const H264Picture *current_picture = h->cur_pic_ptr;
53     const SPS *sps = h->ps.sps;
54     const PPS *pps = h->ps.pps;
55     int i, j;
56
57     memset(pp, 0, sizeof(*pp));
58     /* Configure current picture */
59     fill_picture_entry(&pp->CurrPic,
60                        ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
61                        h->picture_structure == PICT_BOTTOM_FIELD);
62     /* Configure the set of references */
63     pp->UsedForReferenceFlags  = 0;
64     pp->NonExistingFrameFlags  = 0;
65     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
66         const H264Picture *r;
67         if (j < h->short_ref_count) {
68             r = h->short_ref[j++];
69         } else {
70             r = NULL;
71             while (!r && j < h->short_ref_count + 16)
72                 r = h->long_ref[j++ - h->short_ref_count];
73         }
74         if (r) {
75             fill_picture_entry(&pp->RefFrameList[i],
76                                ff_dxva2_get_surface_index(avctx, ctx, r->f),
77                                r->long_ref != 0);
78
79             if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
80                 pp->FieldOrderCntList[i][0] = r->field_poc[0];
81             if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
82                 pp->FieldOrderCntList[i][1] = r->field_poc[1];
83
84             pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
85             if (r->reference & PICT_TOP_FIELD)
86                 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
87             if (r->reference & PICT_BOTTOM_FIELD)
88                 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
89         } else {
90             pp->RefFrameList[i].bPicEntry = 0xff;
91             pp->FieldOrderCntList[i][0]   = 0;
92             pp->FieldOrderCntList[i][1]   = 0;
93             pp->FrameNumList[i]           = 0;
94         }
95     }
96
97     pp->wFrameWidthInMbsMinus1        = h->mb_width  - 1;
98     pp->wFrameHeightInMbsMinus1       = h->mb_height - 1;
99     pp->num_ref_frames                = sps->ref_frame_count;
100
101     pp->wBitFields                    = ((h->picture_structure != PICT_FRAME) <<  0) |
102                                         ((sps->mb_aff &&
103                                         (h->picture_structure == PICT_FRAME)) <<  1) |
104                                         (sps->residual_color_transform_flag   <<  2) |
105                                         /* sp_for_switch_flag (not implemented by Libav) */
106                                         (0                                    <<  3) |
107                                         (sps->chroma_format_idc               <<  4) |
108                                         ((h->nal_ref_idc != 0)                <<  6) |
109                                         (pps->constrained_intra_pred          <<  7) |
110                                         (pps->weighted_pred                   <<  8) |
111                                         (pps->weighted_bipred_idc             <<  9) |
112                                         /* MbsConsecutiveFlag */
113                                         (1                                    << 11) |
114                                         (sps->frame_mbs_only_flag             << 12) |
115                                         (pps->transform_8x8_mode              << 13) |
116                                         ((sps->level_idc >= 31)               << 14) |
117                                         /* IntraPicFlag (Modified if we detect a non
118                                          * intra slice in dxva2_h264_decode_slice) */
119                                         (1                                    << 15);
120
121     pp->bit_depth_luma_minus8         = sps->bit_depth_luma - 8;
122     pp->bit_depth_chroma_minus8       = sps->bit_depth_chroma - 8;
123     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
124         pp->Reserved16Bits            = 0;
125     else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
126         pp->Reserved16Bits            = 0x34c;
127     else
128         pp->Reserved16Bits            = 3; /* FIXME is there a way to detect the right mode ? */
129     pp->StatusReportFeedbackNumber    = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
130     pp->CurrFieldOrderCnt[0] = 0;
131     if ((h->picture_structure & PICT_TOP_FIELD) &&
132         current_picture->field_poc[0] != INT_MAX)
133         pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
134     pp->CurrFieldOrderCnt[1] = 0;
135     if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
136         current_picture->field_poc[1] != INT_MAX)
137         pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
138     pp->pic_init_qs_minus26           = pps->init_qs - 26;
139     pp->chroma_qp_index_offset        = pps->chroma_qp_index_offset[0];
140     pp->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
141     pp->ContinuationFlag              = 1;
142     pp->pic_init_qp_minus26           = pps->init_qp - 26;
143     pp->num_ref_idx_l0_active_minus1  = pps->ref_count[0] - 1;
144     pp->num_ref_idx_l1_active_minus1  = pps->ref_count[1] - 1;
145     pp->Reserved8BitsA                = 0;
146     pp->frame_num                     = h->poc.frame_num;
147     pp->log2_max_frame_num_minus4     = sps->log2_max_frame_num - 4;
148     pp->pic_order_cnt_type            = sps->poc_type;
149     if (sps->poc_type == 0)
150         pp->log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4;
151     else if (sps->poc_type == 1)
152         pp->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
153     pp->direct_8x8_inference_flag     = sps->direct_8x8_inference_flag;
154     pp->entropy_coding_mode_flag      = pps->cabac;
155     pp->pic_order_present_flag        = pps->pic_order_present;
156     pp->num_slice_groups_minus1       = pps->slice_group_count - 1;
157     pp->slice_group_map_type          = pps->mb_slice_group_map_type;
158     pp->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
159     pp->redundant_pic_cnt_present_flag= pps->redundant_pic_cnt_present;
160     pp->Reserved8BitsB                = 0;
161     pp->slice_group_change_rate_minus1= 0;  /* XXX not implemented by Libav */
162     //pp->SliceGroupMap[810];               /* XXX not implemented by Libav */
163 }
164
165 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
166 {
167     unsigned i, j;
168     const SPS *sps = h->ps.sps;
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];
223     AVDXVAContext *ctx = avctx->hwaccel_context;
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,
259                                    r->reference == PICT_BOTTOM_FIELD);
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 :
270                                                sl->pwt.chroma_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
299 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
300                                              DECODER_BUFFER_DESC *bs,
301                                              DECODER_BUFFER_DESC *sc)
302 {
303     const H264Context *h = avctx->priv_data;
304     const unsigned mb_count = h->mb_width * h->mb_height;
305     AVDXVAContext *ctx = avctx->hwaccel_context;
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
440 static int dxva2_h264_start_frame(AVCodecContext *avctx,
441                                   av_unused const uint8_t *buffer,
442                                   av_unused uint32_t size)
443 {
444     const H264Context *h = avctx->priv_data;
445     AVDXVAContext *ctx = avctx->hwaccel_context;
446     struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
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
466 static int dxva2_h264_decode_slice(AVCodecContext *avctx,
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];
472     AVDXVAContext *ctx = avctx->hwaccel_context;
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
493     if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
494         ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
495     return 0;
496 }
497
498 static int dxva2_h264_end_frame(AVCodecContext *avctx)
499 {
500     H264Context *h = avctx->priv_data;
501     H264SliceContext *sl = &h->slice_ctx[0];
502     struct dxva2_picture_context *ctx_pic =
503         h->cur_pic_ptr->hwaccel_picture_private;
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),
511                                     commit_bitstream_and_slice_buffer);
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