h264: factor out pred weight table parsing into a separate file
[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     int i, j;
54
55     memset(pp, 0, sizeof(*pp));
56     /* Configure current picture */
57     fill_picture_entry(&pp->CurrPic,
58                        ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
59                        h->picture_structure == PICT_BOTTOM_FIELD);
60     /* Configure the set of references */
61     pp->UsedForReferenceFlags  = 0;
62     pp->NonExistingFrameFlags  = 0;
63     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
64         const H264Picture *r;
65         if (j < h->short_ref_count) {
66             r = h->short_ref[j++];
67         } else {
68             r = NULL;
69             while (!r && j < h->short_ref_count + 16)
70                 r = h->long_ref[j++ - h->short_ref_count];
71         }
72         if (r) {
73             fill_picture_entry(&pp->RefFrameList[i],
74                                ff_dxva2_get_surface_index(avctx, ctx, r->f),
75                                r->long_ref != 0);
76
77             if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
78                 pp->FieldOrderCntList[i][0] = r->field_poc[0];
79             if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
80                 pp->FieldOrderCntList[i][1] = r->field_poc[1];
81
82             pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
83             if (r->reference & PICT_TOP_FIELD)
84                 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
85             if (r->reference & PICT_BOTTOM_FIELD)
86                 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
87         } else {
88             pp->RefFrameList[i].bPicEntry = 0xff;
89             pp->FieldOrderCntList[i][0]   = 0;
90             pp->FieldOrderCntList[i][1]   = 0;
91             pp->FrameNumList[i]           = 0;
92         }
93     }
94
95     pp->wFrameWidthInMbsMinus1        = h->mb_width  - 1;
96     pp->wFrameHeightInMbsMinus1       = h->mb_height - 1;
97     pp->num_ref_frames                = h->sps.ref_frame_count;
98
99     pp->wBitFields                    = ((h->picture_structure != PICT_FRAME) <<  0) |
100                                         ((h->sps.mb_aff &&
101                                         (h->picture_structure == PICT_FRAME)) <<  1) |
102                                         (h->sps.residual_color_transform_flag <<  2) |
103                                         /* sp_for_switch_flag (not implemented by Libav) */
104                                         (0                                    <<  3) |
105                                         (h->sps.chroma_format_idc             <<  4) |
106                                         ((h->nal_ref_idc != 0)                <<  6) |
107                                         (h->pps.constrained_intra_pred        <<  7) |
108                                         (h->pps.weighted_pred                 <<  8) |
109                                         (h->pps.weighted_bipred_idc           <<  9) |
110                                         /* MbsConsecutiveFlag */
111                                         (1                                    << 11) |
112                                         (h->sps.frame_mbs_only_flag           << 12) |
113                                         (h->pps.transform_8x8_mode            << 13) |
114                                         ((h->sps.level_idc >= 31)             << 14) |
115                                         /* IntraPicFlag (Modified if we detect a non
116                                          * intra slice in dxva2_h264_decode_slice) */
117                                         (1                                    << 15);
118
119     pp->bit_depth_luma_minus8         = h->sps.bit_depth_luma - 8;
120     pp->bit_depth_chroma_minus8       = h->sps.bit_depth_chroma - 8;
121     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
122         pp->Reserved16Bits            = 0;
123     else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
124         pp->Reserved16Bits            = 0x34c;
125     else
126         pp->Reserved16Bits            = 3; /* FIXME is there a way to detect the right mode ? */
127     pp->StatusReportFeedbackNumber    = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
128     pp->CurrFieldOrderCnt[0] = 0;
129     if ((h->picture_structure & PICT_TOP_FIELD) &&
130         current_picture->field_poc[0] != INT_MAX)
131         pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
132     pp->CurrFieldOrderCnt[1] = 0;
133     if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
134         current_picture->field_poc[1] != INT_MAX)
135         pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
136     pp->pic_init_qs_minus26           = h->pps.init_qs - 26;
137     pp->chroma_qp_index_offset        = h->pps.chroma_qp_index_offset[0];
138     pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
139     pp->ContinuationFlag              = 1;
140     pp->pic_init_qp_minus26           = h->pps.init_qp - 26;
141     pp->num_ref_idx_l0_active_minus1  = h->pps.ref_count[0] - 1;
142     pp->num_ref_idx_l1_active_minus1  = h->pps.ref_count[1] - 1;
143     pp->Reserved8BitsA                = 0;
144     pp->frame_num                     = h->frame_num;
145     pp->log2_max_frame_num_minus4     = h->sps.log2_max_frame_num - 4;
146     pp->pic_order_cnt_type            = h->sps.poc_type;
147     if (h->sps.poc_type == 0)
148         pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
149     else if (h->sps.poc_type == 1)
150         pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
151     pp->direct_8x8_inference_flag     = h->sps.direct_8x8_inference_flag;
152     pp->entropy_coding_mode_flag      = h->pps.cabac;
153     pp->pic_order_present_flag        = h->pps.pic_order_present;
154     pp->num_slice_groups_minus1       = h->pps.slice_group_count - 1;
155     pp->slice_group_map_type          = h->pps.mb_slice_group_map_type;
156     pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
157     pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
158     pp->Reserved8BitsB                = 0;
159     pp->slice_group_change_rate_minus1= 0;  /* XXX not implemented by Libav */
160     //pp->SliceGroupMap[810];               /* XXX not implemented by Libav */
161 }
162
163 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
164 {
165     unsigned i, j;
166     memset(qm, 0, sizeof(*qm));
167     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
168         for (i = 0; i < 6; i++)
169             for (j = 0; j < 16; j++)
170                 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][j];
171
172         for (i = 0; i < 64; i++) {
173             qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][i];
174             qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][i];
175         }
176     } else {
177         for (i = 0; i < 6; i++)
178             for (j = 0; j < 16; j++)
179                 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][ff_zigzag_scan[j]];
180
181         for (i = 0; i < 64; i++) {
182             qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][ff_zigzag_direct[i]];
183             qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][ff_zigzag_direct[i]];
184         }
185     }
186 }
187
188 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
189 {
190     assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
191            DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
192     return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
193 }
194
195 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
196                              unsigned position, unsigned size)
197 {
198     memset(slice, 0, sizeof(*slice));
199     slice->BSNALunitDataLocation = position;
200     slice->SliceBytesInBuffer    = size;
201     slice->wBadSliceChopping     = 0;
202 }
203
204 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
205 {
206     int i;
207     for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
208         if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
209           return i;
210     }
211     return 0x7f;
212 }
213
214 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
215                             const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
216 {
217     const H264Context *h = avctx->priv_data;
218     H264SliceContext *sl = &h->slice_ctx[0];
219     AVDXVAContext *ctx = avctx->hwaccel_context;
220     unsigned list;
221
222     memset(slice, 0, sizeof(*slice));
223     slice->BSNALunitDataLocation = position;
224     slice->SliceBytesInBuffer    = size;
225     slice->wBadSliceChopping     = 0;
226
227     slice->first_mb_in_slice     = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
228     slice->NumMbsForSlice        = 0; /* XXX it is set once we have all slices */
229     slice->BitOffsetToSliceData  = get_bits_count(&sl->gb);
230     slice->slice_type            = ff_h264_get_slice_type(sl);
231     if (sl->slice_type_fixed)
232         slice->slice_type += 5;
233     slice->luma_log2_weight_denom       = sl->pwt.luma_log2_weight_denom;
234     slice->chroma_log2_weight_denom     = sl->pwt.chroma_log2_weight_denom;
235     if (sl->list_count > 0)
236         slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
237     if (sl->list_count > 1)
238         slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
239     slice->slice_alpha_c0_offset_div2   = sl->slice_alpha_c0_offset / 2;
240     slice->slice_beta_offset_div2       = sl->slice_beta_offset     / 2;
241     slice->Reserved8Bits                = 0;
242
243     for (list = 0; list < 2; list++) {
244         unsigned i;
245         for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
246             if (list < sl->list_count && i < sl->ref_count[list]) {
247                 const H264Picture *r = sl->ref_list[list][i].parent;
248                 unsigned plane;
249                 unsigned index;
250                 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
251                     index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
252                 else
253                     index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
254                 fill_picture_entry(&slice->RefPicList[list][i], index,
255                                    r->reference == PICT_BOTTOM_FIELD);
256                 for (plane = 0; plane < 3; plane++) {
257                     int w, o;
258                     if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
259                         w = sl->pwt.luma_weight[i][list][0];
260                         o = sl->pwt.luma_weight[i][list][1];
261                     } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
262                         w = sl->pwt.chroma_weight[i][list][plane-1][0];
263                         o = sl->pwt.chroma_weight[i][list][plane-1][1];
264                     } else {
265                         w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
266                                                sl->pwt.chroma_log2_weight_denom);
267                         o = 0;
268                     }
269                     slice->Weights[list][i][plane][0] = w;
270                     slice->Weights[list][i][plane][1] = o;
271                 }
272             } else {
273                 unsigned plane;
274                 slice->RefPicList[list][i].bPicEntry = 0xff;
275                 for (plane = 0; plane < 3; plane++) {
276                     slice->Weights[list][i][plane][0] = 0;
277                     slice->Weights[list][i][plane][1] = 0;
278                 }
279             }
280         }
281     }
282     slice->slice_qs_delta    = 0; /* XXX not implemented by Libav */
283     slice->slice_qp_delta    = sl->qscale - h->pps.init_qp;
284     slice->redundant_pic_cnt = sl->redundant_pic_count;
285     if (sl->slice_type == AV_PICTURE_TYPE_B)
286         slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
287     slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
288     if (sl->deblocking_filter < 2)
289         slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
290     else
291         slice->disable_deblocking_filter_idc = sl->deblocking_filter;
292     slice->slice_id = h->current_slice - 1;
293 }
294
295 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
296                                              DECODER_BUFFER_DESC *bs,
297                                              DECODER_BUFFER_DESC *sc)
298 {
299     const H264Context *h = avctx->priv_data;
300     const unsigned mb_count = h->mb_width * h->mb_height;
301     AVDXVAContext *ctx = avctx->hwaccel_context;
302     const H264Picture *current_picture = h->cur_pic_ptr;
303     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
304     DXVA_Slice_H264_Short *slice = NULL;
305     void     *dxva_data_ptr;
306     uint8_t  *dxva_data, *current, *end;
307     unsigned dxva_size;
308     void     *slice_data;
309     unsigned slice_size;
310     unsigned padding;
311     unsigned i;
312     unsigned type;
313
314     /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
315 #if CONFIG_D3D11VA
316     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
317         type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
318         if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
319                                                        D3D11VA_CONTEXT(ctx)->decoder,
320                                                        type,
321                                                        &dxva_size, &dxva_data_ptr)))
322             return -1;
323     }
324 #endif
325 #if CONFIG_DXVA2
326     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
327         type = DXVA2_BitStreamDateBufferType;
328         if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
329                                                   type,
330                                                   &dxva_data_ptr, &dxva_size)))
331             return -1;
332     }
333 #endif
334
335     dxva_data = dxva_data_ptr;
336     current = dxva_data;
337     end = dxva_data + dxva_size;
338
339     for (i = 0; i < ctx_pic->slice_count; i++) {
340         static const uint8_t start_code[] = { 0, 0, 1 };
341         static const unsigned start_code_size = sizeof(start_code);
342         unsigned position, size;
343
344         assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
345                offsetof(DXVA_Slice_H264_Long,  BSNALunitDataLocation));
346         assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
347                offsetof(DXVA_Slice_H264_Long,  SliceBytesInBuffer));
348
349         if (is_slice_short(avctx, ctx))
350             slice = &ctx_pic->slice_short[i];
351         else
352             slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
353
354         position = slice->BSNALunitDataLocation;
355         size     = slice->SliceBytesInBuffer;
356         if (start_code_size + size > end - current) {
357             av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
358             break;
359         }
360
361         slice->BSNALunitDataLocation = current - dxva_data;
362         slice->SliceBytesInBuffer    = start_code_size + size;
363
364         if (!is_slice_short(avctx, ctx)) {
365             DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
366             if (i < ctx_pic->slice_count - 1)
367                 slice_long->NumMbsForSlice =
368                     slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
369             else
370                 slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
371         }
372
373         memcpy(current, start_code, start_code_size);
374         current += start_code_size;
375
376         memcpy(current, &ctx_pic->bitstream[position], size);
377         current += size;
378     }
379     padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
380     if (slice && padding > 0) {
381         memset(current, 0, padding);
382         current += padding;
383
384         slice->SliceBytesInBuffer += padding;
385     }
386 #if CONFIG_D3D11VA
387     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
388         if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
389             return -1;
390 #endif
391 #if CONFIG_DXVA2
392     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
393         if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
394             return -1;
395 #endif
396     if (i < ctx_pic->slice_count)
397         return -1;
398
399 #if CONFIG_D3D11VA
400     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
401         D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
402         memset(dsc11, 0, sizeof(*dsc11));
403         dsc11->BufferType           = type;
404         dsc11->DataSize             = current - dxva_data;
405         dsc11->NumMBsInBuffer       = mb_count;
406
407         type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
408     }
409 #endif
410 #if CONFIG_DXVA2
411     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
412         DXVA2_DecodeBufferDesc *dsc2 = bs;
413         memset(dsc2, 0, sizeof(*dsc2));
414         dsc2->CompressedBufferType = type;
415         dsc2->DataSize             = current - dxva_data;
416         dsc2->NumMBsInBuffer       = mb_count;
417
418         type = DXVA2_SliceControlBufferType;
419     }
420 #endif
421
422     if (is_slice_short(avctx, ctx)) {
423         slice_data = ctx_pic->slice_short;
424         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
425     } else {
426         slice_data = ctx_pic->slice_long;
427         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
428     }
429     assert((bs->DataSize & 127) == 0);
430     return ff_dxva2_commit_buffer(avctx, ctx, sc,
431                                   type,
432                                   slice_data, slice_size, mb_count);
433 }
434
435
436 static int dxva2_h264_start_frame(AVCodecContext *avctx,
437                                   av_unused const uint8_t *buffer,
438                                   av_unused uint32_t size)
439 {
440     const H264Context *h = avctx->priv_data;
441     AVDXVAContext *ctx = avctx->hwaccel_context;
442     struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
443
444     if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
445         DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
446         DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
447         return -1;
448     assert(ctx_pic);
449
450     /* Fill up DXVA_PicParams_H264 */
451     fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
452
453     /* Fill up DXVA_Qmatrix_H264 */
454     fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
455
456     ctx_pic->slice_count    = 0;
457     ctx_pic->bitstream_size = 0;
458     ctx_pic->bitstream      = NULL;
459     return 0;
460 }
461
462 static int dxva2_h264_decode_slice(AVCodecContext *avctx,
463                                    const uint8_t *buffer,
464                                    uint32_t size)
465 {
466     const H264Context *h = avctx->priv_data;
467     const H264SliceContext *sl = &h->slice_ctx[0];
468     AVDXVAContext *ctx = avctx->hwaccel_context;
469     const H264Picture *current_picture = h->cur_pic_ptr;
470     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
471     unsigned position;
472
473     if (ctx_pic->slice_count >= MAX_SLICES)
474         return -1;
475
476     if (!ctx_pic->bitstream)
477         ctx_pic->bitstream = buffer;
478     ctx_pic->bitstream_size += size;
479
480     position = buffer - ctx_pic->bitstream;
481     if (is_slice_short(avctx, ctx))
482         fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
483                          position, size);
484     else
485         fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
486                         &ctx_pic->pp, position, size);
487     ctx_pic->slice_count++;
488
489     if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
490         ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
491     return 0;
492 }
493
494 static int dxva2_h264_end_frame(AVCodecContext *avctx)
495 {
496     H264Context *h = avctx->priv_data;
497     H264SliceContext *sl = &h->slice_ctx[0];
498     struct dxva2_picture_context *ctx_pic =
499         h->cur_pic_ptr->hwaccel_picture_private;
500     int ret;
501
502     if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
503         return -1;
504     ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
505                                     &ctx_pic->pp, sizeof(ctx_pic->pp),
506                                     &ctx_pic->qm, sizeof(ctx_pic->qm),
507                                     commit_bitstream_and_slice_buffer);
508     if (!ret)
509         ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
510     return ret;
511 }
512
513 #if CONFIG_H264_DXVA2_HWACCEL
514 AVHWAccel ff_h264_dxva2_hwaccel = {
515     .name           = "h264_dxva2",
516     .type           = AVMEDIA_TYPE_VIDEO,
517     .id             = AV_CODEC_ID_H264,
518     .pix_fmt        = AV_PIX_FMT_DXVA2_VLD,
519     .start_frame    = dxva2_h264_start_frame,
520     .decode_slice   = dxva2_h264_decode_slice,
521     .end_frame      = dxva2_h264_end_frame,
522     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
523 };
524 #endif
525
526 #if CONFIG_H264_D3D11VA_HWACCEL
527 AVHWAccel ff_h264_d3d11va_hwaccel = {
528     .name           = "h264_d3d11va",
529     .type           = AVMEDIA_TYPE_VIDEO,
530     .id             = AV_CODEC_ID_H264,
531     .pix_fmt        = AV_PIX_FMT_D3D11VA_VLD,
532     .start_frame    = dxva2_h264_start_frame,
533     .decode_slice   = dxva2_h264_decode_slice,
534     .end_frame      = dxva2_h264_end_frame,
535     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
536 };
537 #endif