dxva2: Directly use AVFrames
[libav.git] / libavcodec / dxva2_vc1.c
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1/*
2 * DXVA2 WMV3/VC-1 HW acceleration.
3 *
4 * copyright (c) 2010 Laurent Aimar
5 *
2912e87a 6 * This file is part of Libav.
f0f86627 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
23#include "dxva2_internal.h"
e0c16e4e 24#include "mpegutils.h"
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25#include "vc1.h"
26#include "vc1data.h"
27
28struct dxva2_picture_context {
29 DXVA_PictureParameters pp;
30 DXVA_SliceInfo si;
31
32 const uint8_t *bitstream;
33 unsigned bitstream_size;
34};
35
36static void fill_picture_parameters(AVCodecContext *avctx,
37 struct dxva_context *ctx, const VC1Context *v,
38 DXVA_PictureParameters *pp)
39{
40 const MpegEncContext *s = &v->s;
41 const Picture *current_picture = s->current_picture_ptr;
42
43 memset(pp, 0, sizeof(*pp));
44 pp->wDecodedPictureIndex =
678e455f 45 pp->wDeblockedPictureIndex = ff_dxva2_get_surface_index(ctx, &current_picture->f);
b2b0aa70 46 if (s->pict_type != AV_PICTURE_TYPE_I && !v->bi_type)
678e455f 47 pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->last_picture.f);
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48 else
49 pp->wForwardRefPictureIndex = 0xffff;
b2b0aa70 50 if (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)
678e455f 51 pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->next_picture.f);
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52 else
53 pp->wBackwardRefPictureIndex = 0xffff;
54 if (v->profile == PROFILE_ADVANCED) {
55 /* It is the cropped width/height -1 of the frame */
56 pp->wPicWidthInMBminus1 = avctx->width - 1;
57 pp->wPicHeightInMBminus1= avctx->height - 1;
58 } else {
59 /* It is the coded width/height in macroblock -1 of the frame */
60 pp->wPicWidthInMBminus1 = s->mb_width - 1;
61 pp->wPicHeightInMBminus1= s->mb_height - 1;
62 }
63 pp->bMacroblockWidthMinus1 = 15;
64 pp->bMacroblockHeightMinus1 = 15;
65 pp->bBlockWidthMinus1 = 7;
66 pp->bBlockHeightMinus1 = 7;
67 pp->bBPPminus1 = 7;
68 if (s->picture_structure & PICT_TOP_FIELD)
69 pp->bPicStructure |= 0x01;
70 if (s->picture_structure & PICT_BOTTOM_FIELD)
71 pp->bPicStructure |= 0x02;
1f948745 72 pp->bSecondField = v->interlace && v->fcm != ILACE_FIELD && !s->first_field;
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73 pp->bPicIntra = s->pict_type == AV_PICTURE_TYPE_I || v->bi_type;
74 pp->bPicBackwardPrediction = s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
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75 pp->bBidirectionalAveragingMode = (1 << 7) |
76 ((ctx->cfg->ConfigIntraResidUnsigned != 0) << 6) |
77 ((ctx->cfg->ConfigResidDiffAccelerator != 0) << 5) |
78 ((v->lumscale != 32 || v->lumshift != 0) << 4) |
79 ((v->profile == PROFILE_ADVANCED) << 3);
80 pp->bMVprecisionAndChromaRelation = ((v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) << 3) |
81 (1 << 2) |
82 (0 << 1) |
83 (!s->quarter_sample );
84 pp->bChromaFormat = v->chromaformat;
85 ctx->report_id++;
86 if (ctx->report_id >= (1 << 16))
87 ctx->report_id = 1;
88 pp->bPicScanFixed = ctx->report_id >> 8;
89 pp->bPicScanMethod = ctx->report_id & 0xff;
90 pp->bPicReadbackRequests = 0;
91 pp->bRcontrol = v->rnd;
92 pp->bPicSpatialResid8 = (v->panscanflag << 7) |
93 (v->refdist_flag << 6) |
94 (s->loop_filter << 5) |
95 (v->fastuvmc << 4) |
96 (v->extended_mv << 3) |
97 (v->dquant << 1) |
98 (v->vstransform );
99 pp->bPicOverflowBlocks = (v->quantizer_mode << 6) |
100 (v->multires << 5) |
c2f7417e 101 (v->resync_marker << 4) |
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102 (v->rangered << 3) |
103 (s->max_b_frames );
1f948745 104 pp->bPicExtrapolation = (!v->interlace || v->fcm == PROGRESSIVE) ? 1 : 2;
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105 pp->bPicDeblocked = ((!pp->bPicBackwardPrediction && v->overlap) << 6) |
106 ((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) |
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107 (s->loop_filter << 1);
108 pp->bPicDeblockConfined = (v->postprocflag << 7) |
109 (v->broadcast << 6) |
110 (v->interlace << 5) |
111 (v->tfcntrflag << 4) |
112 (v->finterpflag << 3) |
975a1447 113 ((s->pict_type != AV_PICTURE_TYPE_B) << 2) |
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114 (v->psf << 1) |
115 (v->extended_dmv );
975a1447 116 if (s->pict_type != AV_PICTURE_TYPE_I)
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117 pp->bPic4MVallowed = v->mv_mode == MV_PMODE_MIXED_MV ||
118 (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
119 v->mv_mode2 == MV_PMODE_MIXED_MV);
120 if (v->profile == PROFILE_ADVANCED)
121 pp->bPicOBMC = (v->range_mapy_flag << 7) |
122 (v->range_mapy << 4) |
123 (v->range_mapuv_flag << 3) |
124 (v->range_mapuv );
125 pp->bPicBinPB = 0;
126 pp->bMV_RPS = 0;
127 pp->bReservedBits = 0;
128 if (s->picture_structure == PICT_FRAME) {
129 pp->wBitstreamFcodes = v->lumscale;
130 pp->wBitstreamPCEelements = v->lumshift;
131 } else {
132 /* Syntax: (top_field_param << 8) | bottom_field_param */
133 pp->wBitstreamFcodes = (v->lumscale << 8) | v->lumscale;
134 pp->wBitstreamPCEelements = (v->lumshift << 8) | v->lumshift;
135 }
136 pp->bBitstreamConcealmentNeed = 0;
137 pp->bBitstreamConcealmentMethod = 0;
138}
139
140static void fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice,
141 unsigned position, unsigned size)
142{
143 const VC1Context *v = avctx->priv_data;
144 const MpegEncContext *s = &v->s;
145
146 memset(slice, 0, sizeof(*slice));
147 slice->wHorizontalPosition = 0;
148 slice->wVerticalPosition = s->mb_y;
149 slice->dwSliceBitsInBuffer = 8 * size;
150 slice->dwSliceDataLocation = position;
151 slice->bStartCodeBitOffset = 0;
152 slice->bReservedBits = 0;
153 slice->wMBbitOffset = get_bits_count(&s->gb);
154 slice->wNumberMBsInSlice = s->mb_width * s->mb_height; /* XXX We assume 1 slice */
155 slice->wQuantizerScaleCode = v->pq;
156 slice->wBadSliceChopping = 0;
157}
158
159static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
160 DXVA2_DecodeBufferDesc *bs,
161 DXVA2_DecodeBufferDesc *sc)
162{
163 const VC1Context *v = avctx->priv_data;
164 struct dxva_context *ctx = avctx->hwaccel_context;
165 const MpegEncContext *s = &v->s;
ad0c9f2d 166 struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
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167
168 DXVA_SliceInfo *slice = &ctx_pic->si;
169
170 static const uint8_t start_code[] = { 0, 0, 1, 0x0d };
36ef5369 171 const unsigned start_code_size = avctx->codec_id == AV_CODEC_ID_VC1 ? sizeof(start_code) : 0;
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172 const unsigned slice_size = slice->dwSliceBitsInBuffer / 8;
173 const unsigned padding = 128 - ((start_code_size + slice_size) & 127);
174 const unsigned data_size = start_code_size + slice_size + padding;
175
176 uint8_t *dxva_data;
177 unsigned dxva_size;
178 int result;
179
180 if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder,
181 DXVA2_BitStreamDateBufferType,
182 &dxva_data, &dxva_size)))
183 return -1;
184
185 result = data_size <= dxva_size ? 0 : -1;
186 if (!result) {
187 if (start_code_size > 0)
188 memcpy(dxva_data, start_code, start_code_size);
189 memcpy(dxva_data + start_code_size,
190 ctx_pic->bitstream + slice->dwSliceDataLocation, slice_size);
191 if (padding > 0)
192 memset(dxva_data + start_code_size + slice_size, 0, padding);
193 slice->dwSliceBitsInBuffer = 8 * data_size;
194 }
195 if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder,
196 DXVA2_BitStreamDateBufferType)))
197 return -1;
198 if (result)
199 return result;
200
201 memset(bs, 0, sizeof(*bs));
202 bs->CompressedBufferType = DXVA2_BitStreamDateBufferType;
203 bs->DataSize = data_size;
204 bs->NumMBsInBuffer = s->mb_width * s->mb_height;
205 assert((bs->DataSize & 127) == 0);
206
207 return ff_dxva2_commit_buffer(avctx, ctx, sc,
208 DXVA2_SliceControlBufferType,
209 slice, sizeof(*slice), bs->NumMBsInBuffer);
210}
211
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212static int dxva2_vc1_start_frame(AVCodecContext *avctx,
213 av_unused const uint8_t *buffer,
214 av_unused uint32_t size)
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215{
216 const VC1Context *v = avctx->priv_data;
217 struct dxva_context *ctx = avctx->hwaccel_context;
ad0c9f2d 218 struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
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219
220 if (!ctx->decoder || !ctx->cfg || ctx->surface_count <= 0)
221 return -1;
222 assert(ctx_pic);
223
224 fill_picture_parameters(avctx, ctx, v, &ctx_pic->pp);
225
226 ctx_pic->bitstream_size = 0;
227 ctx_pic->bitstream = NULL;
228 return 0;
229}
230
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231static int dxva2_vc1_decode_slice(AVCodecContext *avctx,
232 const uint8_t *buffer,
233 uint32_t size)
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234{
235 const VC1Context *v = avctx->priv_data;
236 const Picture *current_picture = v->s.current_picture_ptr;
ad0c9f2d 237 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
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238
239 if (ctx_pic->bitstream_size > 0)
240 return -1;
241
36ef5369 242 if (avctx->codec_id == AV_CODEC_ID_VC1 &&
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243 size >= 4 && IS_MARKER(AV_RB32(buffer))) {
244 buffer += 4;
245 size -= 4;
246 }
247
248 ctx_pic->bitstream_size = size;
249 ctx_pic->bitstream = buffer;
250
251 fill_slice(avctx, &ctx_pic->si, 0, size);
252 return 0;
253}
254
c57a5936 255static int dxva2_vc1_end_frame(AVCodecContext *avctx)
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256{
257 VC1Context *v = avctx->priv_data;
ad0c9f2d 258 struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
2c541554 259 int ret;
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260
261 if (ctx_pic->bitstream_size <= 0)
262 return -1;
263
678e455f 264 ret = ff_dxva2_common_end_frame(avctx, &v->s.current_picture_ptr->f,
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265 &ctx_pic->pp, sizeof(ctx_pic->pp),
266 NULL, 0,
267 commit_bitstream_and_slice_buffer);
268 if (!ret)
269 ff_mpeg_draw_horiz_band(&v->s, 0, avctx->height);
270 return ret;
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271}
272
273#if CONFIG_WMV3_DXVA2_HWACCEL
d1b6f33b 274AVHWAccel ff_wmv3_dxva2_hwaccel = {
f0f86627 275 .name = "wmv3_dxva2",
72415b2a 276 .type = AVMEDIA_TYPE_VIDEO,
36ef5369 277 .id = AV_CODEC_ID_WMV3,
716d413c 278 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
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279 .start_frame = dxva2_vc1_start_frame,
280 .decode_slice = dxva2_vc1_decode_slice,
281 .end_frame = dxva2_vc1_end_frame,
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282 .priv_data_size = sizeof(struct dxva2_picture_context),
283};
284#endif
285
d1b6f33b 286AVHWAccel ff_vc1_dxva2_hwaccel = {
f0f86627 287 .name = "vc1_dxva2",
72415b2a 288 .type = AVMEDIA_TYPE_VIDEO,
36ef5369 289 .id = AV_CODEC_ID_VC1,
716d413c 290 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
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291 .start_frame = dxva2_vc1_start_frame,
292 .decode_slice = dxva2_vc1_decode_slice,
293 .end_frame = dxva2_vc1_end_frame,
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294 .priv_data_size = sizeof(struct dxva2_picture_context),
295};