vp9: assert -> av_assert and fix associated compile error.
[ffmpeg.git] / libavcodec / dxva2_h264.c
1 /*
2  * DXVA2 H.264 HW acceleration.
3  *
4  * copyright (c) 2009 Laurent Aimar
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22
23 #include "libavutil/avassert.h"
24
25 #include "h264dec.h"
26 #include "h264data.h"
27 #include "h264_ps.h"
28 #include "mpegutils.h"
29
30 // The headers above may include w32threads.h, which uses the original
31 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
32 // potentially newer version.
33 #include "dxva2_internal.h"
34
35 struct dxva2_picture_context {
36     DXVA_PicParams_H264   pp;
37     DXVA_Qmatrix_H264     qm;
38     unsigned              slice_count;
39     DXVA_Slice_H264_Short slice_short[MAX_SLICES];
40     DXVA_Slice_H264_Long  slice_long[MAX_SLICES];
41     const uint8_t         *bitstream;
42     unsigned              bitstream_size;
43 };
44
45 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
46                                unsigned index, unsigned flag)
47 {
48     assert((index&0x7f) == index && (flag&0x01) == flag);
49     pic->bPicEntry = index | (flag << 7);
50 }
51
52 static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
53                                     DXVA_PicParams_H264 *pp)
54 {
55     const H264Picture *current_picture = h->cur_pic_ptr;
56     const SPS *sps = h->ps.sps;
57     const PPS *pps = h->ps.pps;
58     int i, j;
59
60     memset(pp, 0, sizeof(*pp));
61     /* Configure current picture */
62     fill_picture_entry(&pp->CurrPic,
63                        ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
64                        h->picture_structure == PICT_BOTTOM_FIELD);
65     /* Configure the set of references */
66     pp->UsedForReferenceFlags  = 0;
67     pp->NonExistingFrameFlags  = 0;
68     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
69         const H264Picture *r;
70         if (j < h->short_ref_count) {
71             r = h->short_ref[j++];
72         } else {
73             r = NULL;
74             while (!r && j < h->short_ref_count + 16)
75                 r = h->long_ref[j++ - h->short_ref_count];
76         }
77         if (r) {
78             fill_picture_entry(&pp->RefFrameList[i],
79                                ff_dxva2_get_surface_index(avctx, ctx, r->f),
80                                r->long_ref != 0);
81
82             if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
83                 pp->FieldOrderCntList[i][0] = r->field_poc[0];
84             if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
85                 pp->FieldOrderCntList[i][1] = r->field_poc[1];
86
87             pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
88             if (r->reference & PICT_TOP_FIELD)
89                 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
90             if (r->reference & PICT_BOTTOM_FIELD)
91                 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
92         } else {
93             pp->RefFrameList[i].bPicEntry = 0xff;
94             pp->FieldOrderCntList[i][0]   = 0;
95             pp->FieldOrderCntList[i][1]   = 0;
96             pp->FrameNumList[i]           = 0;
97         }
98     }
99
100     pp->wFrameWidthInMbsMinus1        = h->mb_width  - 1;
101     pp->wFrameHeightInMbsMinus1       = h->mb_height - 1;
102     pp->num_ref_frames                = sps->ref_frame_count;
103
104     pp->wBitFields                    = ((h->picture_structure != PICT_FRAME) <<  0) |
105                                         ((sps->mb_aff &&
106                                         (h->picture_structure == PICT_FRAME)) <<  1) |
107                                         (sps->residual_color_transform_flag   <<  2) |
108                                         /* sp_for_switch_flag (not implemented by FFmpeg) */
109                                         (0                                    <<  3) |
110                                         (sps->chroma_format_idc               <<  4) |
111                                         ((h->nal_ref_idc != 0)                <<  6) |
112                                         (pps->constrained_intra_pred          <<  7) |
113                                         (pps->weighted_pred                   <<  8) |
114                                         (pps->weighted_bipred_idc             <<  9) |
115                                         /* MbsConsecutiveFlag */
116                                         (1                                    << 11) |
117                                         (sps->frame_mbs_only_flag             << 12) |
118                                         (pps->transform_8x8_mode              << 13) |
119                                         ((sps->level_idc >= 31)               << 14) |
120                                         /* IntraPicFlag (Modified if we detect a non
121                                          * intra slice in dxva2_h264_decode_slice) */
122                                         (1                                    << 15);
123
124     pp->bit_depth_luma_minus8         = sps->bit_depth_luma - 8;
125     pp->bit_depth_chroma_minus8       = sps->bit_depth_chroma - 8;
126     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
127         pp->Reserved16Bits            = 0;
128     else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
129         pp->Reserved16Bits            = 0x34c;
130     else
131         pp->Reserved16Bits            = 3; /* FIXME is there a way to detect the right mode ? */
132     pp->StatusReportFeedbackNumber    = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
133     pp->CurrFieldOrderCnt[0] = 0;
134     if ((h->picture_structure & PICT_TOP_FIELD) &&
135         current_picture->field_poc[0] != INT_MAX)
136         pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
137     pp->CurrFieldOrderCnt[1] = 0;
138     if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
139         current_picture->field_poc[1] != INT_MAX)
140         pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
141     pp->pic_init_qs_minus26           = pps->init_qs - 26;
142     pp->chroma_qp_index_offset        = pps->chroma_qp_index_offset[0];
143     pp->second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1];
144     pp->ContinuationFlag              = 1;
145     pp->pic_init_qp_minus26           = pps->init_qp - 26;
146     pp->num_ref_idx_l0_active_minus1  = pps->ref_count[0] - 1;
147     pp->num_ref_idx_l1_active_minus1  = pps->ref_count[1] - 1;
148     pp->Reserved8BitsA                = 0;
149     pp->frame_num                     = h->poc.frame_num;
150     pp->log2_max_frame_num_minus4     = sps->log2_max_frame_num - 4;
151     pp->pic_order_cnt_type            = sps->poc_type;
152     if (sps->poc_type == 0)
153         pp->log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4;
154     else if (sps->poc_type == 1)
155         pp->delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
156     pp->direct_8x8_inference_flag     = sps->direct_8x8_inference_flag;
157     pp->entropy_coding_mode_flag      = pps->cabac;
158     pp->pic_order_present_flag        = pps->pic_order_present;
159     pp->num_slice_groups_minus1       = pps->slice_group_count - 1;
160     pp->slice_group_map_type          = pps->mb_slice_group_map_type;
161     pp->deblocking_filter_control_present_flag = pps->deblocking_filter_parameters_present;
162     pp->redundant_pic_cnt_present_flag= pps->redundant_pic_cnt_present;
163     pp->Reserved8BitsB                = 0;
164     pp->slice_group_change_rate_minus1= 0;  /* XXX not implemented by FFmpeg */
165     //pp->SliceGroupMap[810];               /* XXX not implemented by FFmpeg */
166 }
167
168 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
169 {
170     const PPS *pps = h->ps.pps;
171     unsigned i, j;
172     memset(qm, 0, sizeof(*qm));
173     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
174         for (i = 0; i < 6; i++)
175             for (j = 0; j < 16; j++)
176                 qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][j];
177
178         for (i = 0; i < 64; i++) {
179             qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][i];
180             qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][i];
181         }
182     } else {
183         for (i = 0; i < 6; i++)
184             for (j = 0; j < 16; j++)
185                 qm->bScalingLists4x4[i][j] = pps->scaling_matrix4[i][ff_zigzag_scan[j]];
186
187         for (i = 0; i < 64; i++) {
188             qm->bScalingLists8x8[0][i] = pps->scaling_matrix8[0][ff_zigzag_direct[i]];
189             qm->bScalingLists8x8[1][i] = pps->scaling_matrix8[3][ff_zigzag_direct[i]];
190         }
191     }
192 }
193
194 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
195 {
196     assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
197            DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
198     return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
199 }
200
201 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
202                              unsigned position, unsigned size)
203 {
204     memset(slice, 0, sizeof(*slice));
205     slice->BSNALunitDataLocation = position;
206     slice->SliceBytesInBuffer    = size;
207     slice->wBadSliceChopping     = 0;
208 }
209
210 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
211 {
212     int i;
213     for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
214         if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
215           return i;
216     }
217     return 0x7f;
218 }
219
220 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
221                             const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
222 {
223     const H264Context *h = avctx->priv_data;
224     H264SliceContext *sl = &h->slice_ctx[0];
225     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
226     unsigned list;
227
228     memset(slice, 0, sizeof(*slice));
229     slice->BSNALunitDataLocation = position;
230     slice->SliceBytesInBuffer    = size;
231     slice->wBadSliceChopping     = 0;
232
233     slice->first_mb_in_slice     = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
234     slice->NumMbsForSlice        = 0; /* XXX it is set once we have all slices */
235     slice->BitOffsetToSliceData  = get_bits_count(&sl->gb) - 8;
236     slice->slice_type            = ff_h264_get_slice_type(sl);
237     if (sl->slice_type_fixed)
238         slice->slice_type += 5;
239     slice->luma_log2_weight_denom       = sl->pwt.luma_log2_weight_denom;
240     slice->chroma_log2_weight_denom     = sl->pwt.chroma_log2_weight_denom;
241     if (sl->list_count > 0)
242         slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
243     if (sl->list_count > 1)
244         slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
245     slice->slice_alpha_c0_offset_div2   = sl->slice_alpha_c0_offset / 2;
246     slice->slice_beta_offset_div2       = sl->slice_beta_offset     / 2;
247     slice->Reserved8Bits                = 0;
248
249     for (list = 0; list < 2; list++) {
250         unsigned i;
251         for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
252             if (list < sl->list_count && i < sl->ref_count[list]) {
253                 const H264Picture *r = sl->ref_list[list][i].parent;
254                 unsigned plane;
255                 unsigned index;
256                 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
257                     index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
258                 else
259                     index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
260                 fill_picture_entry(&slice->RefPicList[list][i], index,
261                                    sl->ref_list[list][i].reference == PICT_BOTTOM_FIELD);
262                 for (plane = 0; plane < 3; plane++) {
263                     int w, o;
264                     if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
265                         w = sl->pwt.luma_weight[i][list][0];
266                         o = sl->pwt.luma_weight[i][list][1];
267                     } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
268                         w = sl->pwt.chroma_weight[i][list][plane-1][0];
269                         o = sl->pwt.chroma_weight[i][list][plane-1][1];
270                     } else {
271                         w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
272                                                sl->pwt.chroma_log2_weight_denom);
273                         o = 0;
274                     }
275                     slice->Weights[list][i][plane][0] = w;
276                     slice->Weights[list][i][plane][1] = o;
277                 }
278             } else {
279                 unsigned plane;
280                 slice->RefPicList[list][i].bPicEntry = 0xff;
281                 for (plane = 0; plane < 3; plane++) {
282                     slice->Weights[list][i][plane][0] = 0;
283                     slice->Weights[list][i][plane][1] = 0;
284                 }
285             }
286         }
287     }
288     slice->slice_qs_delta    = 0; /* XXX not implemented by FFmpeg */
289     slice->slice_qp_delta    = sl->qscale - h->ps.pps->init_qp;
290     slice->redundant_pic_cnt = sl->redundant_pic_count;
291     if (sl->slice_type == AV_PICTURE_TYPE_B)
292         slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
293     slice->cabac_init_idc = h->ps.pps->cabac ? sl->cabac_init_idc : 0;
294     if (sl->deblocking_filter < 2)
295         slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
296     else
297         slice->disable_deblocking_filter_idc = sl->deblocking_filter;
298     slice->slice_id = h->current_slice - 1;
299 }
300
301 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
302                                              DECODER_BUFFER_DESC *bs,
303                                              DECODER_BUFFER_DESC *sc)
304 {
305     const H264Context *h = avctx->priv_data;
306     const unsigned mb_count = h->mb_width * h->mb_height;
307     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
308     const H264Picture *current_picture = h->cur_pic_ptr;
309     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
310     DXVA_Slice_H264_Short *slice = NULL;
311     void     *dxva_data_ptr = NULL;
312     uint8_t  *dxva_data, *current, *end;
313     unsigned dxva_size = 0;
314     void     *slice_data;
315     unsigned slice_size;
316     unsigned padding;
317     unsigned i;
318     unsigned type;
319
320     /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
321 #if CONFIG_D3D11VA
322     if (ff_dxva2_is_d3d11(avctx)) {
323         type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
324         if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
325                                                        D3D11VA_CONTEXT(ctx)->decoder,
326                                                        type,
327                                                        &dxva_size, &dxva_data_ptr)))
328             return -1;
329     }
330 #endif
331 #if CONFIG_DXVA2
332     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
333         type = DXVA2_BitStreamDateBufferType;
334         if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
335                                                   type,
336                                                   &dxva_data_ptr, &dxva_size)))
337             return -1;
338     }
339 #endif
340
341     dxva_data = dxva_data_ptr;
342     current = dxva_data;
343     end = dxva_data + dxva_size;
344
345     for (i = 0; i < ctx_pic->slice_count; i++) {
346         static const uint8_t start_code[] = { 0, 0, 1 };
347         static const unsigned start_code_size = sizeof(start_code);
348         unsigned position, size;
349
350         assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
351                offsetof(DXVA_Slice_H264_Long,  BSNALunitDataLocation));
352         assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
353                offsetof(DXVA_Slice_H264_Long,  SliceBytesInBuffer));
354
355         if (is_slice_short(avctx, ctx))
356             slice = &ctx_pic->slice_short[i];
357         else
358             slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
359
360         position = slice->BSNALunitDataLocation;
361         size     = slice->SliceBytesInBuffer;
362         if (start_code_size + size > end - current) {
363             av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
364             break;
365         }
366
367         slice->BSNALunitDataLocation = current - dxva_data;
368         slice->SliceBytesInBuffer    = start_code_size + size;
369
370         if (!is_slice_short(avctx, ctx)) {
371             DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
372             if (i < ctx_pic->slice_count - 1)
373                 slice_long->NumMbsForSlice =
374                     slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
375             else
376                 slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
377         }
378
379         memcpy(current, start_code, start_code_size);
380         current += start_code_size;
381
382         memcpy(current, &ctx_pic->bitstream[position], size);
383         current += size;
384     }
385     padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
386     if (slice && padding > 0) {
387         memset(current, 0, padding);
388         current += padding;
389
390         slice->SliceBytesInBuffer += padding;
391     }
392 #if CONFIG_D3D11VA
393     if (ff_dxva2_is_d3d11(avctx))
394         if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
395             return -1;
396 #endif
397 #if CONFIG_DXVA2
398     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
399         if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
400             return -1;
401 #endif
402     if (i < ctx_pic->slice_count)
403         return -1;
404
405 #if CONFIG_D3D11VA
406     if (ff_dxva2_is_d3d11(avctx)) {
407         D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
408         memset(dsc11, 0, sizeof(*dsc11));
409         dsc11->BufferType           = type;
410         dsc11->DataSize             = current - dxva_data;
411         dsc11->NumMBsInBuffer       = mb_count;
412
413         type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
414
415         av_assert0((dsc11->DataSize & 127) == 0);
416     }
417 #endif
418 #if CONFIG_DXVA2
419     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
420         DXVA2_DecodeBufferDesc *dsc2 = bs;
421         memset(dsc2, 0, sizeof(*dsc2));
422         dsc2->CompressedBufferType = type;
423         dsc2->DataSize             = current - dxva_data;
424         dsc2->NumMBsInBuffer       = mb_count;
425
426         type = DXVA2_SliceControlBufferType;
427
428         av_assert0((dsc2->DataSize & 127) == 0);
429     }
430 #endif
431
432     if (is_slice_short(avctx, ctx)) {
433         slice_data = ctx_pic->slice_short;
434         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
435     } else {
436         slice_data = ctx_pic->slice_long;
437         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
438     }
439     return ff_dxva2_commit_buffer(avctx, ctx, sc,
440                                   type,
441                                   slice_data, slice_size, mb_count);
442 }
443
444
445 static int dxva2_h264_start_frame(AVCodecContext *avctx,
446                                   av_unused const uint8_t *buffer,
447                                   av_unused uint32_t size)
448 {
449     const H264Context *h = avctx->priv_data;
450     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
451     struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
452
453     if (!DXVA_CONTEXT_VALID(avctx, ctx))
454         return -1;
455     assert(ctx_pic);
456
457     /* Fill up DXVA_PicParams_H264 */
458     fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
459
460     /* Fill up DXVA_Qmatrix_H264 */
461     fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
462
463     ctx_pic->slice_count    = 0;
464     ctx_pic->bitstream_size = 0;
465     ctx_pic->bitstream      = NULL;
466     return 0;
467 }
468
469 static int dxva2_h264_decode_slice(AVCodecContext *avctx,
470                                    const uint8_t *buffer,
471                                    uint32_t size)
472 {
473     const H264Context *h = avctx->priv_data;
474     const H264SliceContext *sl = &h->slice_ctx[0];
475     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
476     const H264Picture *current_picture = h->cur_pic_ptr;
477     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
478     unsigned position;
479
480     if (ctx_pic->slice_count >= MAX_SLICES)
481         return -1;
482
483     if (!ctx_pic->bitstream)
484         ctx_pic->bitstream = buffer;
485     ctx_pic->bitstream_size += size;
486
487     position = buffer - ctx_pic->bitstream;
488     if (is_slice_short(avctx, ctx))
489         fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
490                          position, size);
491     else
492         fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
493                         &ctx_pic->pp, position, size);
494     ctx_pic->slice_count++;
495
496     if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
497         ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
498     return 0;
499 }
500
501 static int dxva2_h264_end_frame(AVCodecContext *avctx)
502 {
503     H264Context *h = avctx->priv_data;
504     H264SliceContext *sl = &h->slice_ctx[0];
505     struct dxva2_picture_context *ctx_pic =
506         h->cur_pic_ptr->hwaccel_picture_private;
507     int ret;
508
509     if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
510         return -1;
511     ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
512                                     &ctx_pic->pp, sizeof(ctx_pic->pp),
513                                     &ctx_pic->qm, sizeof(ctx_pic->qm),
514                                     commit_bitstream_and_slice_buffer);
515     if (!ret)
516         ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
517     return ret;
518 }
519
520 #if CONFIG_H264_DXVA2_HWACCEL
521 AVHWAccel ff_h264_dxva2_hwaccel = {
522     .name           = "h264_dxva2",
523     .type           = AVMEDIA_TYPE_VIDEO,
524     .id             = AV_CODEC_ID_H264,
525     .pix_fmt        = AV_PIX_FMT_DXVA2_VLD,
526     .init           = ff_dxva2_decode_init,
527     .uninit         = ff_dxva2_decode_uninit,
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     .priv_data_size = sizeof(FFDXVASharedContext),
533 };
534 #endif
535
536 #if CONFIG_H264_D3D11VA_HWACCEL
537 AVHWAccel ff_h264_d3d11va_hwaccel = {
538     .name           = "h264_d3d11va",
539     .type           = AVMEDIA_TYPE_VIDEO,
540     .id             = AV_CODEC_ID_H264,
541     .pix_fmt        = AV_PIX_FMT_D3D11VA_VLD,
542     .init           = ff_dxva2_decode_init,
543     .uninit         = ff_dxva2_decode_uninit,
544     .start_frame    = dxva2_h264_start_frame,
545     .decode_slice   = dxva2_h264_decode_slice,
546     .end_frame      = dxva2_h264_end_frame,
547     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
548     .priv_data_size = sizeof(FFDXVASharedContext),
549 };
550 #endif
551
552 #if CONFIG_H264_D3D11VA2_HWACCEL
553 AVHWAccel ff_h264_d3d11va2_hwaccel = {
554     .name           = "h264_d3d11va2",
555     .type           = AVMEDIA_TYPE_VIDEO,
556     .id             = AV_CODEC_ID_H264,
557     .pix_fmt        = AV_PIX_FMT_D3D11,
558     .init           = ff_dxva2_decode_init,
559     .uninit         = ff_dxva2_decode_uninit,
560     .start_frame    = dxva2_h264_start_frame,
561     .decode_slice   = dxva2_h264_decode_slice,
562     .end_frame      = dxva2_h264_end_frame,
563     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
564     .priv_data_size = sizeof(FFDXVASharedContext),
565 };
566 #endif