2 * DXVA2 WMV3/VC-1 HW acceleration.
4 * copyright (c) 2010 Laurent Aimar
6 * This file is part of FFmpeg.
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.
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.
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
23 #include "dxva2_internal.h"
24 #include "mpegutils.h"
28 #define MAX_SLICES 1024
30 struct dxva2_picture_context {
31 DXVA_PictureParameters pp;
33 DXVA_SliceInfo slice[MAX_SLICES];
35 const uint8_t *bitstream;
36 unsigned bitstream_size;
39 static void fill_picture_parameters(AVCodecContext *avctx,
40 AVDXVAContext *ctx, const VC1Context *v,
41 DXVA_PictureParameters *pp)
43 const MpegEncContext *s = &v->s;
44 const Picture *current_picture = s->current_picture_ptr;
47 // determine if intensity compensation is needed
48 if (s->pict_type == AV_PICTURE_TYPE_P) {
49 if ((v->fcm == ILACE_FRAME && v->intcomp) || (v->fcm != ILACE_FRAME && v->mv_mode == MV_PMODE_INTENSITY_COMP)) {
50 if (v->lumscale != 32 || v->lumshift != 0 || (s->picture_structure != PICT_FRAME && (v->lumscale2 != 32 || v->lumshift2 != 0)))
55 memset(pp, 0, sizeof(*pp));
56 pp->wDecodedPictureIndex =
57 pp->wDeblockedPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, current_picture->f);
58 if (s->pict_type != AV_PICTURE_TYPE_I && !v->bi_type)
59 pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->last_picture.f);
61 pp->wForwardRefPictureIndex = 0xffff;
62 if (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)
63 pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->next_picture.f);
65 pp->wBackwardRefPictureIndex = 0xffff;
66 if (v->profile == PROFILE_ADVANCED) {
67 /* It is the cropped width/height -1 of the frame */
68 pp->wPicWidthInMBminus1 = avctx->width - 1;
69 pp->wPicHeightInMBminus1= avctx->height - 1;
71 /* It is the coded width/height in macroblock -1 of the frame */
72 pp->wPicWidthInMBminus1 = s->mb_width - 1;
73 pp->wPicHeightInMBminus1= s->mb_height - 1;
75 pp->bMacroblockWidthMinus1 = 15;
76 pp->bMacroblockHeightMinus1 = 15;
77 pp->bBlockWidthMinus1 = 7;
78 pp->bBlockHeightMinus1 = 7;
80 if (s->picture_structure & PICT_TOP_FIELD)
81 pp->bPicStructure |= 0x01;
82 if (s->picture_structure & PICT_BOTTOM_FIELD)
83 pp->bPicStructure |= 0x02;
84 pp->bSecondField = v->interlace && v->fcm == ILACE_FIELD && v->second_field;
85 pp->bPicIntra = s->pict_type == AV_PICTURE_TYPE_I || v->bi_type;
86 pp->bPicBackwardPrediction = s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
87 pp->bBidirectionalAveragingMode = (1 << 7) |
88 ((DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) != 0) << 6) |
89 ((DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) != 0) << 5) |
91 ((v->profile == PROFILE_ADVANCED) << 3);
92 pp->bMVprecisionAndChromaRelation = ((v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) << 3) |
95 (!s->quarter_sample );
96 pp->bChromaFormat = v->chromaformat;
97 DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
98 if (DXVA_CONTEXT_REPORT_ID(avctx, ctx) >= (1 << 16))
99 DXVA_CONTEXT_REPORT_ID(avctx, ctx) = 1;
100 pp->bPicScanFixed = DXVA_CONTEXT_REPORT_ID(avctx, ctx) >> 8;
101 pp->bPicScanMethod = DXVA_CONTEXT_REPORT_ID(avctx, ctx) & 0xff;
102 pp->bPicReadbackRequests = 0;
103 pp->bRcontrol = v->rnd;
104 pp->bPicSpatialResid8 = (v->panscanflag << 7) |
105 (v->refdist_flag << 6) |
106 (s->loop_filter << 5) |
108 (v->extended_mv << 3) |
111 pp->bPicOverflowBlocks = (v->quantizer_mode << 6) |
113 (v->resync_marker << 4) |
116 pp->bPicExtrapolation = (!v->interlace || v->fcm == PROGRESSIVE) ? 1 : 2;
117 pp->bPicDeblocked = ((!pp->bPicBackwardPrediction && v->overlap) << 6) |
118 ((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) |
119 (s->loop_filter << 1);
120 pp->bPicDeblockConfined = (v->postprocflag << 7) |
121 (v->broadcast << 6) |
122 (v->interlace << 5) |
123 (v->tfcntrflag << 4) |
124 (v->finterpflag << 3) |
125 ((s->pict_type != AV_PICTURE_TYPE_B) << 2) |
128 if (s->pict_type != AV_PICTURE_TYPE_I)
129 pp->bPic4MVallowed = v->mv_mode == MV_PMODE_MIXED_MV ||
130 (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
131 v->mv_mode2 == MV_PMODE_MIXED_MV);
132 if (v->profile == PROFILE_ADVANCED)
133 pp->bPicOBMC = (v->range_mapy_flag << 7) |
134 (v->range_mapy << 4) |
135 (v->range_mapuv_flag << 3) |
138 pp->bMV_RPS = (v->fcm == ILACE_FIELD && pp->bPicBackwardPrediction) ? v->refdist + 9 : 0;
139 pp->bReservedBits = v->pq;
140 if (s->picture_structure == PICT_FRAME) {
142 pp->wBitstreamFcodes = v->lumscale;
143 pp->wBitstreamPCEelements = v->lumshift;
145 pp->wBitstreamFcodes = 32;
146 pp->wBitstreamPCEelements = 0;
149 /* Syntax: (top_field_param << 8) | bottom_field_param */
151 pp->wBitstreamFcodes = (v->lumscale << 8) | v->lumscale2;
152 pp->wBitstreamPCEelements = (v->lumshift << 8) | v->lumshift2;
154 pp->wBitstreamFcodes = (32 << 8) | 32;
155 pp->wBitstreamPCEelements = 0;
158 pp->bBitstreamConcealmentNeed = 0;
159 pp->bBitstreamConcealmentMethod = 0;
162 static void fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice,
163 unsigned position, unsigned size)
165 const VC1Context *v = avctx->priv_data;
166 const MpegEncContext *s = &v->s;
168 memset(slice, 0, sizeof(*slice));
169 slice->wHorizontalPosition = 0;
170 slice->wVerticalPosition = s->mb_y;
171 slice->dwSliceBitsInBuffer = 8 * size;
172 slice->dwSliceDataLocation = position;
173 slice->bStartCodeBitOffset = 0;
174 slice->bReservedBits = (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type) ? v->bfraction_lut_index + 9 : 0;
175 slice->wMBbitOffset = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb) + (avctx->codec_id == AV_CODEC_ID_VC1 ? 32 : 0);
176 /* XXX We store the index of the first MB and it will be fixed later */
177 slice->wNumberMBsInSlice = (s->mb_y >> v->field_mode) * s->mb_width + s->mb_x;
178 slice->wQuantizerScaleCode = v->pq;
179 slice->wBadSliceChopping = 0;
182 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
183 DECODER_BUFFER_DESC *bs,
184 DECODER_BUFFER_DESC *sc)
186 const VC1Context *v = avctx->priv_data;
187 AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
188 const MpegEncContext *s = &v->s;
189 struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
191 static const uint8_t start_code[] = { 0, 0, 1, 0x0d };
192 const unsigned start_code_size = avctx->codec_id == AV_CODEC_ID_VC1 ? sizeof(start_code) : 0;
193 const unsigned mb_count = s->mb_width * (s->mb_height >> v->field_mode);
194 DXVA_SliceInfo *slice = NULL;
196 uint8_t *dxva_data, *current, *end;
203 if (ff_dxva2_is_d3d11(avctx)) {
204 type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
205 if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
206 D3D11VA_CONTEXT(ctx)->decoder,
208 &dxva_size, &dxva_data_ptr)))
213 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
214 type = DXVA2_BitStreamDateBufferType;
215 if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
217 &dxva_data_ptr, &dxva_size)))
222 dxva_data = dxva_data_ptr;
224 end = dxva_data + dxva_size;
226 for (i = 0; i < ctx_pic->slice_count; i++) {
227 unsigned position, size;
228 slice = &ctx_pic->slice[i];
229 position = slice->dwSliceDataLocation;
230 size = slice->dwSliceBitsInBuffer / 8;
231 if (start_code_size + size > end - current) {
232 av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
235 slice->dwSliceDataLocation = current - dxva_data;
237 if (i < ctx_pic->slice_count - 1)
238 slice->wNumberMBsInSlice =
239 slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;
241 slice->wNumberMBsInSlice =
242 mb_count - slice[0].wNumberMBsInSlice;
244 /* write the appropriate frame, field or slice start code */
245 if (start_code_size) {
246 memcpy(current, start_code, start_code_size);
247 if (i == 0 && v->second_field)
252 current += start_code_size;
253 slice->dwSliceBitsInBuffer += start_code_size * 8;
256 memcpy(current, &ctx_pic->bitstream[position], size);
259 padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
260 if (slice && padding > 0) {
261 memset(current, 0, padding);
263 slice->dwSliceBitsInBuffer += padding * 8;
267 if (ff_dxva2_is_d3d11(avctx))
268 if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
272 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
273 if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
276 if (i < ctx_pic->slice_count)
280 if (ff_dxva2_is_d3d11(avctx)) {
281 D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
282 memset(dsc11, 0, sizeof(*dsc11));
283 dsc11->BufferType = type;
284 dsc11->DataSize = current - dxva_data;
285 dsc11->NumMBsInBuffer = mb_count;
287 type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
291 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
292 DXVA2_DecodeBufferDesc *dsc2 = bs;
293 memset(dsc2, 0, sizeof(*dsc2));
294 dsc2->CompressedBufferType = type;
295 dsc2->DataSize = current - dxva_data;
296 dsc2->NumMBsInBuffer = mb_count;
298 type = DXVA2_SliceControlBufferType;
302 return ff_dxva2_commit_buffer(avctx, ctx, sc,
305 ctx_pic->slice_count * sizeof(*ctx_pic->slice),
309 static int dxva2_vc1_start_frame(AVCodecContext *avctx,
310 av_unused const uint8_t *buffer,
311 av_unused uint32_t size)
313 const VC1Context *v = avctx->priv_data;
314 AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
315 struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
317 if (!DXVA_CONTEXT_VALID(avctx, ctx))
321 fill_picture_parameters(avctx, ctx, v, &ctx_pic->pp);
323 ctx_pic->slice_count = 0;
324 ctx_pic->bitstream_size = 0;
325 ctx_pic->bitstream = NULL;
329 static int dxva2_vc1_decode_slice(AVCodecContext *avctx,
330 const uint8_t *buffer,
333 const VC1Context *v = avctx->priv_data;
334 const Picture *current_picture = v->s.current_picture_ptr;
335 struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
338 if (ctx_pic->slice_count >= MAX_SLICES) {
339 avpriv_request_sample(avctx, "%d slices in dxva2",
340 ctx_pic->slice_count);
344 if (avctx->codec_id == AV_CODEC_ID_VC1 &&
345 size >= 4 && IS_MARKER(AV_RB32(buffer))) {
350 if (!ctx_pic->bitstream)
351 ctx_pic->bitstream = buffer;
352 ctx_pic->bitstream_size += size;
354 position = buffer - ctx_pic->bitstream;
355 fill_slice(avctx, &ctx_pic->slice[ctx_pic->slice_count++], position, size);
359 static int dxva2_vc1_end_frame(AVCodecContext *avctx)
361 VC1Context *v = avctx->priv_data;
362 struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
365 if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
368 ret = ff_dxva2_common_end_frame(avctx, v->s.current_picture_ptr->f,
369 &ctx_pic->pp, sizeof(ctx_pic->pp),
371 commit_bitstream_and_slice_buffer);
373 ff_mpeg_draw_horiz_band(&v->s, 0, avctx->height);
377 #if CONFIG_WMV3_DXVA2_HWACCEL
378 const AVHWAccel ff_wmv3_dxva2_hwaccel = {
379 .name = "wmv3_dxva2",
380 .type = AVMEDIA_TYPE_VIDEO,
381 .id = AV_CODEC_ID_WMV3,
382 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
383 .init = ff_dxva2_decode_init,
384 .uninit = ff_dxva2_decode_uninit,
385 .start_frame = dxva2_vc1_start_frame,
386 .decode_slice = dxva2_vc1_decode_slice,
387 .end_frame = dxva2_vc1_end_frame,
388 .frame_params = ff_dxva2_common_frame_params,
389 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
390 .priv_data_size = sizeof(FFDXVASharedContext),
394 #if CONFIG_VC1_DXVA2_HWACCEL
395 const AVHWAccel ff_vc1_dxva2_hwaccel = {
397 .type = AVMEDIA_TYPE_VIDEO,
398 .id = AV_CODEC_ID_VC1,
399 .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
400 .init = ff_dxva2_decode_init,
401 .uninit = ff_dxva2_decode_uninit,
402 .start_frame = dxva2_vc1_start_frame,
403 .decode_slice = dxva2_vc1_decode_slice,
404 .end_frame = dxva2_vc1_end_frame,
405 .frame_params = ff_dxva2_common_frame_params,
406 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
407 .priv_data_size = sizeof(FFDXVASharedContext),
411 #if CONFIG_WMV3_D3D11VA_HWACCEL
412 const AVHWAccel ff_wmv3_d3d11va_hwaccel = {
413 .name = "wmv3_d3d11va",
414 .type = AVMEDIA_TYPE_VIDEO,
415 .id = AV_CODEC_ID_WMV3,
416 .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
417 .init = ff_dxva2_decode_init,
418 .uninit = ff_dxva2_decode_uninit,
419 .start_frame = dxva2_vc1_start_frame,
420 .decode_slice = dxva2_vc1_decode_slice,
421 .end_frame = dxva2_vc1_end_frame,
422 .frame_params = ff_dxva2_common_frame_params,
423 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
424 .priv_data_size = sizeof(FFDXVASharedContext),
428 #if CONFIG_WMV3_D3D11VA2_HWACCEL
429 const AVHWAccel ff_wmv3_d3d11va2_hwaccel = {
430 .name = "wmv3_d3d11va2",
431 .type = AVMEDIA_TYPE_VIDEO,
432 .id = AV_CODEC_ID_WMV3,
433 .pix_fmt = AV_PIX_FMT_D3D11,
434 .init = ff_dxva2_decode_init,
435 .uninit = ff_dxva2_decode_uninit,
436 .start_frame = dxva2_vc1_start_frame,
437 .decode_slice = dxva2_vc1_decode_slice,
438 .end_frame = dxva2_vc1_end_frame,
439 .frame_params = ff_dxva2_common_frame_params,
440 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
441 .priv_data_size = sizeof(FFDXVASharedContext),
445 #if CONFIG_VC1_D3D11VA_HWACCEL
446 const AVHWAccel ff_vc1_d3d11va_hwaccel = {
447 .name = "vc1_d3d11va",
448 .type = AVMEDIA_TYPE_VIDEO,
449 .id = AV_CODEC_ID_VC1,
450 .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
451 .init = ff_dxva2_decode_init,
452 .uninit = ff_dxva2_decode_uninit,
453 .start_frame = dxva2_vc1_start_frame,
454 .decode_slice = dxva2_vc1_decode_slice,
455 .end_frame = dxva2_vc1_end_frame,
456 .frame_params = ff_dxva2_common_frame_params,
457 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
458 .priv_data_size = sizeof(FFDXVASharedContext),
462 #if CONFIG_VC1_D3D11VA2_HWACCEL
463 const AVHWAccel ff_vc1_d3d11va2_hwaccel = {
464 .name = "vc1_d3d11va2",
465 .type = AVMEDIA_TYPE_VIDEO,
466 .id = AV_CODEC_ID_VC1,
467 .pix_fmt = AV_PIX_FMT_D3D11,
468 .init = ff_dxva2_decode_init,
469 .uninit = ff_dxva2_decode_uninit,
470 .start_frame = dxva2_vc1_start_frame,
471 .decode_slice = dxva2_vc1_decode_slice,
472 .end_frame = dxva2_vc1_end_frame,
473 .frame_params = ff_dxva2_common_frame_params,
474 .frame_priv_data_size = sizeof(struct dxva2_picture_context),
475 .priv_data_size = sizeof(FFDXVASharedContext),