dxva: Include last the internal header
[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
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23#include "h264.h"
24#include "h264data.h"
e0c16e4e 25#include "mpegutils.h"
92c6a099 26
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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
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32struct 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
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42static 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
d8039ef8 49static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
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50 DXVA_PicParams_H264 *pp)
51{
9b749c82 52 const H264Picture *current_picture = h->cur_pic_ptr;
efb816ef 53 int i, j;
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54
55 memset(pp, 0, sizeof(*pp));
56 /* Configure current picture */
57 fill_picture_entry(&pp->CurrPic,
d8039ef8 58 ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
2c541554 59 h->picture_structure == PICT_BOTTOM_FIELD);
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60 /* Configure the set of references */
61 pp->UsedForReferenceFlags = 0;
62 pp->NonExistingFrameFlags = 0;
efb816ef 63 for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
9b749c82 64 const H264Picture *r;
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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 }
efb816ef 72 if (r) {
92c6a099 73 fill_picture_entry(&pp->RefFrameList[i],
d8039ef8 74 ff_dxva2_get_surface_index(avctx, ctx, r->f),
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75 r->long_ref != 0);
76
759001c5 77 if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
92c6a099 78 pp->FieldOrderCntList[i][0] = r->field_poc[0];
759001c5 79 if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
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80 pp->FieldOrderCntList[i][1] = r->field_poc[1];
81
82 pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
759001c5 83 if (r->reference & PICT_TOP_FIELD)
92c6a099 84 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
759001c5 85 if (r->reference & PICT_BOTTOM_FIELD)
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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
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95 pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
96 pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
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97 pp->num_ref_frames = h->sps.ref_frame_count;
98
2c541554 99 pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
ea1c5011 100 ((h->sps.mb_aff &&
2c541554 101 (h->picture_structure == PICT_FRAME)) << 1) |
92c6a099 102 (h->sps.residual_color_transform_flag << 2) |
6001dad6 103 /* sp_for_switch_flag (not implemented by Libav) */
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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
c57a5936 116 * intra slice in dxva2_h264_decode_slice) */
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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;
d8039ef8 121 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
dcce09d6 122 pp->Reserved16Bits = 0;
d8039ef8 123 else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
ed4b7571 124 pp->Reserved16Bits = 0x34c;
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JP
125 else
126 pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
d8039ef8 127 pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
92c6a099 128 pp->CurrFieldOrderCnt[0] = 0;
2c541554 129 if ((h->picture_structure & PICT_TOP_FIELD) &&
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130 current_picture->field_poc[0] != INT_MAX)
131 pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
132 pp->CurrFieldOrderCnt[1] = 0;
2c541554 133 if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
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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;
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159 pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by Libav */
160 //pp->SliceGroupMap[810]; /* XXX not implemented by Libav */
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161}
162
d8039ef8 163static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
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164{
165 unsigned i, j;
166 memset(qm, 0, sizeof(*qm));
d8039ef8 167 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
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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
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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 }
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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][zigzag_scan[j]];
92c6a099 180
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CEH
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 }
dcce09d6 185 }
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186}
187
d8039ef8 188static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
92c6a099 189{
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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;
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193}
194
195static 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
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HL
204static 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
92c6a099 214static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
2fcef90b 215 const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
92c6a099 216{
34fecc9a 217 const H264Context *h = avctx->priv_data;
92c6c2a6 218 H264SliceContext *sl = &h->slice_ctx[0];
d8039ef8 219 AVDXVAContext *ctx = avctx->hwaccel_context;
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220 unsigned list;
221
222 memset(slice, 0, sizeof(*slice));
223 slice->BSNALunitDataLocation = position;
224 slice->SliceBytesInBuffer = size;
225 slice->wBadSliceChopping = 0;
226
d4d9068c 227 slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
92c6a099 228 slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
ae4f5d94 229 slice->BitOffsetToSliceData = get_bits_count(&sl->gb);
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230 slice->slice_type = ff_h264_get_slice_type(sl);
231 if (sl->slice_type_fixed)
92c6a099 232 slice->slice_type += 5;
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233 slice->luma_log2_weight_denom = sl->luma_log2_weight_denom;
234 slice->chroma_log2_weight_denom = sl->chroma_log2_weight_denom;
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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;
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239 slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
240 slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
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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++) {
95eb35f3 246 if (list < sl->list_count && i < sl->ref_count[list]) {
a12d3188 247 const H264Picture *r = sl->ref_list[list][i].parent;
92c6a099 248 unsigned plane;
ed4b7571 249 unsigned index;
d8039ef8
SL
250 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
251 index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
ed4b7571 252 else
d8039ef8 253 index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
2fcef90b 254 fill_picture_entry(&slice->RefPicList[list][i], index,
759001c5 255 r->reference == PICT_BOTTOM_FIELD);
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256 for (plane = 0; plane < 3; plane++) {
257 int w, o;
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AK
258 if (plane == 0 && sl->luma_weight_flag[list]) {
259 w = sl->luma_weight[i][list][0];
260 o = sl->luma_weight[i][list][1];
261 } else if (plane >= 1 && sl->chroma_weight_flag[list]) {
262 w = sl->chroma_weight[i][list][plane-1][0];
263 o = sl->chroma_weight[i][list][plane-1][1];
92c6a099 264 } else {
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265 w = 1 << (plane == 0 ? sl->luma_log2_weight_denom :
266 sl->chroma_log2_weight_denom);
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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 }
6001dad6 282 slice->slice_qs_delta = 0; /* XXX not implemented by Libav */
d231e84b 283 slice->slice_qp_delta = sl->qscale - h->pps.init_qp;
9951907f 284 slice->redundant_pic_cnt = sl->redundant_pic_count;
56febc99 285 if (sl->slice_type == AV_PICTURE_TYPE_B)
066aafce 286 slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
a9b201ca 287 slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
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288 if (sl->deblocking_filter < 2)
289 slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
92c6a099 290 else
e6c90ce9 291 slice->disable_deblocking_filter_idc = sl->deblocking_filter;
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292 slice->slice_id = h->current_slice - 1;
293}
294
92c6a099 295static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
d8039ef8
SL
296 DECODER_BUFFER_DESC *bs,
297 DECODER_BUFFER_DESC *sc)
92c6a099 298{
34fecc9a 299 const H264Context *h = avctx->priv_data;
2c541554 300 const unsigned mb_count = h->mb_width * h->mb_height;
d8039ef8 301 AVDXVAContext *ctx = avctx->hwaccel_context;
9b749c82 302 const H264Picture *current_picture = h->cur_pic_ptr;
ad0c9f2d 303 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
92c6a099 304 DXVA_Slice_H264_Short *slice = NULL;
4600a85e 305 void *dxva_data_ptr;
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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;
d8039ef8 312 unsigned type;
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LA
313
314 /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
d8039ef8
SL
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
4600a85e
DB
334
335 dxva_data = dxva_data_ptr;
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LA
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
d8039ef8 349 if (is_slice_short(avctx, ctx))
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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
d8039ef8 364 if (!is_slice_short(avctx, ctx)) {
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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 }
d8039ef8
SL
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
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LA
396 if (i < ctx_pic->slice_count)
397 return -1;
398
d8039ef8
SL
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;
92c6a099 406
d8039ef8
SL
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)) {
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LA
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);
e4833b5d 430 return ff_dxva2_commit_buffer(avctx, ctx, sc,
d8039ef8 431 type,
e4833b5d 432 slice_data, slice_size, mb_count);
92c6a099
LA
433}
434
435
c57a5936
DB
436static int dxva2_h264_start_frame(AVCodecContext *avctx,
437 av_unused const uint8_t *buffer,
438 av_unused uint32_t size)
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LA
439{
440 const H264Context *h = avctx->priv_data;
d8039ef8 441 AVDXVAContext *ctx = avctx->hwaccel_context;
ad0c9f2d 442 struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
92c6a099 443
d8039ef8
SL
444 if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
445 DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
446 DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
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LA
447 return -1;
448 assert(ctx_pic);
449
450 /* Fill up DXVA_PicParams_H264 */
d8039ef8 451 fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
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LA
452
453 /* Fill up DXVA_Qmatrix_H264 */
d8039ef8 454 fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
92c6a099
LA
455
456 ctx_pic->slice_count = 0;
457 ctx_pic->bitstream_size = 0;
458 ctx_pic->bitstream = NULL;
459 return 0;
460}
461
c57a5936
DB
462static int dxva2_h264_decode_slice(AVCodecContext *avctx,
463 const uint8_t *buffer,
464 uint32_t size)
92c6a099 465{
34fecc9a 466 const H264Context *h = avctx->priv_data;
56febc99 467 const H264SliceContext *sl = &h->slice_ctx[0];
d8039ef8 468 AVDXVAContext *ctx = avctx->hwaccel_context;
9b749c82 469 const H264Picture *current_picture = h->cur_pic_ptr;
ad0c9f2d 470 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
92c6a099
LA
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;
d8039ef8 481 if (is_slice_short(avctx, ctx))
92c6a099
LA
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],
2fcef90b 486 &ctx_pic->pp, position, size);
92c6a099
LA
487 ctx_pic->slice_count++;
488
56febc99 489 if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
92c6a099
LA
490 ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
491 return 0;
492}
493
c57a5936 494static int dxva2_h264_end_frame(AVCodecContext *avctx)
8db7ee09
LA
495{
496 H264Context *h = avctx->priv_data;
95eb35f3 497 H264SliceContext *sl = &h->slice_ctx[0];
8db7ee09 498 struct dxva2_picture_context *ctx_pic =
ad0c9f2d 499 h->cur_pic_ptr->hwaccel_picture_private;
2c541554 500 int ret;
8db7ee09
LA
501
502 if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
503 return -1;
a0f29460 504 ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
2c541554
AK
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)
95eb35f3 509 ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
2c541554 510 return ret;
8db7ee09
LA
511}
512
d8039ef8 513#if CONFIG_H264_DXVA2_HWACCEL
d1b6f33b 514AVHWAccel ff_h264_dxva2_hwaccel = {
92c6a099 515 .name = "h264_dxva2",
72415b2a 516 .type = AVMEDIA_TYPE_VIDEO,
36ef5369 517 .id = AV_CODEC_ID_H264,
716d413c 518 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
c57a5936
DB
519 .start_frame = dxva2_h264_start_frame,
520 .decode_slice = dxva2_h264_decode_slice,
521 .end_frame = dxva2_h264_end_frame,
a871ef0c 522 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
92c6a099 523};
d8039ef8
SL
524#endif
525
526#if CONFIG_H264_D3D11VA_HWACCEL
527AVHWAccel 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