D3D11va: add a Direct3D11 video decoder similar to DXVA2
[libav.git] / libavcodec / dxva2_h264.c
CommitLineData
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1/*
2 * DXVA2 H264 HW acceleration.
3 *
4 * copyright (c) 2009 Laurent Aimar
5 *
2912e87a 6 * This file is part of Libav.
92c6a099 7 *
2912e87a 8 * Libav is free software; you can redistribute it and/or
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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 *
2912e87a 13 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 19 * License along with Libav; if not, write to the Free Software
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20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
85167c46 23#include "dxva2_internal.h"
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24#include "h264.h"
25#include "h264data.h"
e0c16e4e 26#include "mpegutils.h"
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27
28struct dxva2_picture_context {
29 DXVA_PicParams_H264 pp;
30 DXVA_Qmatrix_H264 qm;
31 unsigned slice_count;
32 DXVA_Slice_H264_Short slice_short[MAX_SLICES];
33 DXVA_Slice_H264_Long slice_long[MAX_SLICES];
34 const uint8_t *bitstream;
35 unsigned bitstream_size;
36};
37
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38static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
39 unsigned index, unsigned flag)
40{
41 assert((index&0x7f) == index && (flag&0x01) == flag);
42 pic->bPicEntry = index | (flag << 7);
43}
44
d8039ef8 45static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
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46 DXVA_PicParams_H264 *pp)
47{
9b749c82 48 const H264Picture *current_picture = h->cur_pic_ptr;
efb816ef 49 int i, j;
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50
51 memset(pp, 0, sizeof(*pp));
52 /* Configure current picture */
53 fill_picture_entry(&pp->CurrPic,
d8039ef8 54 ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
2c541554 55 h->picture_structure == PICT_BOTTOM_FIELD);
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56 /* Configure the set of references */
57 pp->UsedForReferenceFlags = 0;
58 pp->NonExistingFrameFlags = 0;
efb816ef 59 for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
9b749c82 60 const H264Picture *r;
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61 if (j < h->short_ref_count) {
62 r = h->short_ref[j++];
63 } else {
64 r = NULL;
65 while (!r && j < h->short_ref_count + 16)
66 r = h->long_ref[j++ - h->short_ref_count];
67 }
efb816ef 68 if (r) {
92c6a099 69 fill_picture_entry(&pp->RefFrameList[i],
d8039ef8 70 ff_dxva2_get_surface_index(avctx, ctx, r->f),
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71 r->long_ref != 0);
72
759001c5 73 if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
92c6a099 74 pp->FieldOrderCntList[i][0] = r->field_poc[0];
759001c5 75 if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
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76 pp->FieldOrderCntList[i][1] = r->field_poc[1];
77
78 pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
759001c5 79 if (r->reference & PICT_TOP_FIELD)
92c6a099 80 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
759001c5 81 if (r->reference & PICT_BOTTOM_FIELD)
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82 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
83 } else {
84 pp->RefFrameList[i].bPicEntry = 0xff;
85 pp->FieldOrderCntList[i][0] = 0;
86 pp->FieldOrderCntList[i][1] = 0;
87 pp->FrameNumList[i] = 0;
88 }
89 }
90
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91 pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
92 pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
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93 pp->num_ref_frames = h->sps.ref_frame_count;
94
2c541554 95 pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
ea1c5011 96 ((h->sps.mb_aff &&
2c541554 97 (h->picture_structure == PICT_FRAME)) << 1) |
92c6a099 98 (h->sps.residual_color_transform_flag << 2) |
6001dad6 99 /* sp_for_switch_flag (not implemented by Libav) */
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100 (0 << 3) |
101 (h->sps.chroma_format_idc << 4) |
102 ((h->nal_ref_idc != 0) << 6) |
103 (h->pps.constrained_intra_pred << 7) |
104 (h->pps.weighted_pred << 8) |
105 (h->pps.weighted_bipred_idc << 9) |
106 /* MbsConsecutiveFlag */
107 (1 << 11) |
108 (h->sps.frame_mbs_only_flag << 12) |
109 (h->pps.transform_8x8_mode << 13) |
110 ((h->sps.level_idc >= 31) << 14) |
111 /* IntraPicFlag (Modified if we detect a non
c57a5936 112 * intra slice in dxva2_h264_decode_slice) */
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113 (1 << 15);
114
115 pp->bit_depth_luma_minus8 = h->sps.bit_depth_luma - 8;
116 pp->bit_depth_chroma_minus8 = h->sps.bit_depth_chroma - 8;
d8039ef8 117 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
dcce09d6 118 pp->Reserved16Bits = 0;
d8039ef8 119 else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
ed4b7571 120 pp->Reserved16Bits = 0x34c;
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121 else
122 pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
d8039ef8 123 pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
92c6a099 124 pp->CurrFieldOrderCnt[0] = 0;
2c541554 125 if ((h->picture_structure & PICT_TOP_FIELD) &&
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126 current_picture->field_poc[0] != INT_MAX)
127 pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
128 pp->CurrFieldOrderCnt[1] = 0;
2c541554 129 if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
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130 current_picture->field_poc[1] != INT_MAX)
131 pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
132 pp->pic_init_qs_minus26 = h->pps.init_qs - 26;
133 pp->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
134 pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
135 pp->ContinuationFlag = 1;
136 pp->pic_init_qp_minus26 = h->pps.init_qp - 26;
137 pp->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
138 pp->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
139 pp->Reserved8BitsA = 0;
140 pp->frame_num = h->frame_num;
141 pp->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
142 pp->pic_order_cnt_type = h->sps.poc_type;
143 if (h->sps.poc_type == 0)
144 pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
145 else if (h->sps.poc_type == 1)
146 pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
147 pp->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
148 pp->entropy_coding_mode_flag = h->pps.cabac;
149 pp->pic_order_present_flag = h->pps.pic_order_present;
150 pp->num_slice_groups_minus1 = h->pps.slice_group_count - 1;
151 pp->slice_group_map_type = h->pps.mb_slice_group_map_type;
152 pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
153 pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
154 pp->Reserved8BitsB = 0;
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155 pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by Libav */
156 //pp->SliceGroupMap[810]; /* XXX not implemented by Libav */
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157}
158
d8039ef8 159static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
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160{
161 unsigned i, j;
162 memset(qm, 0, sizeof(*qm));
d8039ef8 163 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
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164 for (i = 0; i < 6; i++)
165 for (j = 0; j < 16; j++)
166 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][j];
167
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168 for (i = 0; i < 64; i++) {
169 qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][i];
170 qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][i];
171 }
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172 } else {
173 for (i = 0; i < 6; i++)
174 for (j = 0; j < 16; j++)
175 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][zigzag_scan[j]];
92c6a099 176
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177 for (i = 0; i < 64; i++) {
178 qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][ff_zigzag_direct[i]];
179 qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][ff_zigzag_direct[i]];
180 }
dcce09d6 181 }
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182}
183
d8039ef8 184static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
92c6a099 185{
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186 assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
187 DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
188 return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
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189}
190
191static void fill_slice_short(DXVA_Slice_H264_Short *slice,
192 unsigned position, unsigned size)
193{
194 memset(slice, 0, sizeof(*slice));
195 slice->BSNALunitDataLocation = position;
196 slice->SliceBytesInBuffer = size;
197 slice->wBadSliceChopping = 0;
198}
199
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200static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
201{
202 int i;
203 for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
204 if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
205 return i;
206 }
207 return 0x7f;
208}
209
92c6a099 210static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
2fcef90b 211 const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
92c6a099 212{
34fecc9a 213 const H264Context *h = avctx->priv_data;
92c6c2a6 214 H264SliceContext *sl = &h->slice_ctx[0];
d8039ef8 215 AVDXVAContext *ctx = avctx->hwaccel_context;
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216 unsigned list;
217
218 memset(slice, 0, sizeof(*slice));
219 slice->BSNALunitDataLocation = position;
220 slice->SliceBytesInBuffer = size;
221 slice->wBadSliceChopping = 0;
222
d4d9068c 223 slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
92c6a099 224 slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
ae4f5d94 225 slice->BitOffsetToSliceData = get_bits_count(&sl->gb);
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226 slice->slice_type = ff_h264_get_slice_type(sl);
227 if (sl->slice_type_fixed)
92c6a099 228 slice->slice_type += 5;
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229 slice->luma_log2_weight_denom = sl->luma_log2_weight_denom;
230 slice->chroma_log2_weight_denom = sl->chroma_log2_weight_denom;
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231 if (sl->list_count > 0)
232 slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
233 if (sl->list_count > 1)
234 slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
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235 slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
236 slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
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237 slice->Reserved8Bits = 0;
238
239 for (list = 0; list < 2; list++) {
240 unsigned i;
241 for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
95eb35f3 242 if (list < sl->list_count && i < sl->ref_count[list]) {
a12d3188 243 const H264Picture *r = sl->ref_list[list][i].parent;
92c6a099 244 unsigned plane;
ed4b7571 245 unsigned index;
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SL
246 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
247 index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
ed4b7571 248 else
d8039ef8 249 index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
2fcef90b 250 fill_picture_entry(&slice->RefPicList[list][i], index,
759001c5 251 r->reference == PICT_BOTTOM_FIELD);
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252 for (plane = 0; plane < 3; plane++) {
253 int w, o;
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AK
254 if (plane == 0 && sl->luma_weight_flag[list]) {
255 w = sl->luma_weight[i][list][0];
256 o = sl->luma_weight[i][list][1];
257 } else if (plane >= 1 && sl->chroma_weight_flag[list]) {
258 w = sl->chroma_weight[i][list][plane-1][0];
259 o = sl->chroma_weight[i][list][plane-1][1];
92c6a099 260 } else {
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261 w = 1 << (plane == 0 ? sl->luma_log2_weight_denom :
262 sl->chroma_log2_weight_denom);
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263 o = 0;
264 }
265 slice->Weights[list][i][plane][0] = w;
266 slice->Weights[list][i][plane][1] = o;
267 }
268 } else {
269 unsigned plane;
270 slice->RefPicList[list][i].bPicEntry = 0xff;
271 for (plane = 0; plane < 3; plane++) {
272 slice->Weights[list][i][plane][0] = 0;
273 slice->Weights[list][i][plane][1] = 0;
274 }
275 }
276 }
277 }
6001dad6 278 slice->slice_qs_delta = 0; /* XXX not implemented by Libav */
d231e84b 279 slice->slice_qp_delta = sl->qscale - h->pps.init_qp;
9951907f 280 slice->redundant_pic_cnt = sl->redundant_pic_count;
56febc99 281 if (sl->slice_type == AV_PICTURE_TYPE_B)
066aafce 282 slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
a9b201ca 283 slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
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284 if (sl->deblocking_filter < 2)
285 slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
92c6a099 286 else
e6c90ce9 287 slice->disable_deblocking_filter_idc = sl->deblocking_filter;
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288 slice->slice_id = h->current_slice - 1;
289}
290
92c6a099 291static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
d8039ef8
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292 DECODER_BUFFER_DESC *bs,
293 DECODER_BUFFER_DESC *sc)
92c6a099 294{
34fecc9a 295 const H264Context *h = avctx->priv_data;
2c541554 296 const unsigned mb_count = h->mb_width * h->mb_height;
d8039ef8 297 AVDXVAContext *ctx = avctx->hwaccel_context;
9b749c82 298 const H264Picture *current_picture = h->cur_pic_ptr;
ad0c9f2d 299 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
92c6a099 300 DXVA_Slice_H264_Short *slice = NULL;
4600a85e 301 void *dxva_data_ptr;
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302 uint8_t *dxva_data, *current, *end;
303 unsigned dxva_size;
304 void *slice_data;
305 unsigned slice_size;
306 unsigned padding;
307 unsigned i;
d8039ef8 308 unsigned type;
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LA
309
310 /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
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SL
311#if CONFIG_D3D11VA
312 if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
313 type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
314 if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
315 D3D11VA_CONTEXT(ctx)->decoder,
316 type,
317 &dxva_size, &dxva_data_ptr)))
318 return -1;
319 }
320#endif
321#if CONFIG_DXVA2
322 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
323 type = DXVA2_BitStreamDateBufferType;
324 if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
325 type,
326 &dxva_data_ptr, &dxva_size)))
327 return -1;
328 }
329#endif
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DB
330
331 dxva_data = dxva_data_ptr;
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332 current = dxva_data;
333 end = dxva_data + dxva_size;
334
335 for (i = 0; i < ctx_pic->slice_count; i++) {
336 static const uint8_t start_code[] = { 0, 0, 1 };
337 static const unsigned start_code_size = sizeof(start_code);
338 unsigned position, size;
339
340 assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
341 offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
342 assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
343 offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
344
d8039ef8 345 if (is_slice_short(avctx, ctx))
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346 slice = &ctx_pic->slice_short[i];
347 else
348 slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
349
350 position = slice->BSNALunitDataLocation;
351 size = slice->SliceBytesInBuffer;
352 if (start_code_size + size > end - current) {
353 av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
354 break;
355 }
356
357 slice->BSNALunitDataLocation = current - dxva_data;
358 slice->SliceBytesInBuffer = start_code_size + size;
359
d8039ef8 360 if (!is_slice_short(avctx, ctx)) {
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361 DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
362 if (i < ctx_pic->slice_count - 1)
363 slice_long->NumMbsForSlice =
364 slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
365 else
366 slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
367 }
368
369 memcpy(current, start_code, start_code_size);
370 current += start_code_size;
371
372 memcpy(current, &ctx_pic->bitstream[position], size);
373 current += size;
374 }
375 padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
376 if (slice && padding > 0) {
377 memset(current, 0, padding);
378 current += padding;
379
380 slice->SliceBytesInBuffer += padding;
381 }
d8039ef8
SL
382#if CONFIG_D3D11VA
383 if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
384 if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
385 return -1;
386#endif
387#if CONFIG_DXVA2
388 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
389 if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
390 return -1;
391#endif
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392 if (i < ctx_pic->slice_count)
393 return -1;
394
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395#if CONFIG_D3D11VA
396 if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
397 D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
398 memset(dsc11, 0, sizeof(*dsc11));
399 dsc11->BufferType = type;
400 dsc11->DataSize = current - dxva_data;
401 dsc11->NumMBsInBuffer = mb_count;
92c6a099 402
d8039ef8
SL
403 type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
404 }
405#endif
406#if CONFIG_DXVA2
407 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
408 DXVA2_DecodeBufferDesc *dsc2 = bs;
409 memset(dsc2, 0, sizeof(*dsc2));
410 dsc2->CompressedBufferType = type;
411 dsc2->DataSize = current - dxva_data;
412 dsc2->NumMBsInBuffer = mb_count;
413
414 type = DXVA2_SliceControlBufferType;
415 }
416#endif
417
418 if (is_slice_short(avctx, ctx)) {
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419 slice_data = ctx_pic->slice_short;
420 slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
421 } else {
422 slice_data = ctx_pic->slice_long;
423 slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
424 }
425 assert((bs->DataSize & 127) == 0);
e4833b5d 426 return ff_dxva2_commit_buffer(avctx, ctx, sc,
d8039ef8 427 type,
e4833b5d 428 slice_data, slice_size, mb_count);
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LA
429}
430
431
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DB
432static int dxva2_h264_start_frame(AVCodecContext *avctx,
433 av_unused const uint8_t *buffer,
434 av_unused uint32_t size)
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LA
435{
436 const H264Context *h = avctx->priv_data;
d8039ef8 437 AVDXVAContext *ctx = avctx->hwaccel_context;
ad0c9f2d 438 struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
92c6a099 439
d8039ef8
SL
440 if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
441 DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
442 DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
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LA
443 return -1;
444 assert(ctx_pic);
445
446 /* Fill up DXVA_PicParams_H264 */
d8039ef8 447 fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
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448
449 /* Fill up DXVA_Qmatrix_H264 */
d8039ef8 450 fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
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LA
451
452 ctx_pic->slice_count = 0;
453 ctx_pic->bitstream_size = 0;
454 ctx_pic->bitstream = NULL;
455 return 0;
456}
457
c57a5936
DB
458static int dxva2_h264_decode_slice(AVCodecContext *avctx,
459 const uint8_t *buffer,
460 uint32_t size)
92c6a099 461{
34fecc9a 462 const H264Context *h = avctx->priv_data;
56febc99 463 const H264SliceContext *sl = &h->slice_ctx[0];
d8039ef8 464 AVDXVAContext *ctx = avctx->hwaccel_context;
9b749c82 465 const H264Picture *current_picture = h->cur_pic_ptr;
ad0c9f2d 466 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
92c6a099
LA
467 unsigned position;
468
469 if (ctx_pic->slice_count >= MAX_SLICES)
470 return -1;
471
472 if (!ctx_pic->bitstream)
473 ctx_pic->bitstream = buffer;
474 ctx_pic->bitstream_size += size;
475
476 position = buffer - ctx_pic->bitstream;
d8039ef8 477 if (is_slice_short(avctx, ctx))
92c6a099
LA
478 fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
479 position, size);
480 else
481 fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
2fcef90b 482 &ctx_pic->pp, position, size);
92c6a099
LA
483 ctx_pic->slice_count++;
484
56febc99 485 if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
92c6a099
LA
486 ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
487 return 0;
488}
489
c57a5936 490static int dxva2_h264_end_frame(AVCodecContext *avctx)
8db7ee09
LA
491{
492 H264Context *h = avctx->priv_data;
95eb35f3 493 H264SliceContext *sl = &h->slice_ctx[0];
8db7ee09 494 struct dxva2_picture_context *ctx_pic =
ad0c9f2d 495 h->cur_pic_ptr->hwaccel_picture_private;
2c541554 496 int ret;
8db7ee09
LA
497
498 if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
499 return -1;
a0f29460 500 ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
2c541554
AK
501 &ctx_pic->pp, sizeof(ctx_pic->pp),
502 &ctx_pic->qm, sizeof(ctx_pic->qm),
503 commit_bitstream_and_slice_buffer);
504 if (!ret)
95eb35f3 505 ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
2c541554 506 return ret;
8db7ee09
LA
507}
508
d8039ef8 509#if CONFIG_H264_DXVA2_HWACCEL
d1b6f33b 510AVHWAccel ff_h264_dxva2_hwaccel = {
92c6a099 511 .name = "h264_dxva2",
72415b2a 512 .type = AVMEDIA_TYPE_VIDEO,
36ef5369 513 .id = AV_CODEC_ID_H264,
716d413c 514 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
c57a5936
DB
515 .start_frame = dxva2_h264_start_frame,
516 .decode_slice = dxva2_h264_decode_slice,
517 .end_frame = dxva2_h264_end_frame,
a871ef0c 518 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
92c6a099 519};
d8039ef8
SL
520#endif
521
522#if CONFIG_H264_D3D11VA_HWACCEL
523AVHWAccel ff_h264_d3d11va_hwaccel = {
524 .name = "h264_d3d11va",
525 .type = AVMEDIA_TYPE_VIDEO,
526 .id = AV_CODEC_ID_H264,
527 .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
528 .start_frame = dxva2_h264_start_frame,
529 .decode_slice = dxva2_h264_decode_slice,
530 .end_frame = dxva2_h264_end_frame,
531 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
532};
533#endif