FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vaapi_vc1.c
Date: 2022-07-04 00:18:54
Exec Total Coverage
Lines: 0 310 0.0%
Branches: 0 268 0.0%

Line Branch Exec Source
1 /*
2 * VC-1 HW decode acceleration through VA API
3 *
4 * Copyright (C) 2008-2009 Splitted-Desktop Systems
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 "config_components.h"
24
25 #include "hwconfig.h"
26 #include "mpegvideodec.h"
27 #include "vaapi_decode.h"
28 #include "vc1.h"
29 #include "vc1data.h"
30
31 /** Translate FFmpeg MV modes to VA API */
32 static int get_VAMvModeVC1(enum MVModes mv_mode)
33 {
34 switch (mv_mode) {
35 case MV_PMODE_1MV_HPEL_BILIN: return VAMvMode1MvHalfPelBilinear;
36 case MV_PMODE_1MV: return VAMvMode1Mv;
37 case MV_PMODE_1MV_HPEL: return VAMvMode1MvHalfPel;
38 case MV_PMODE_MIXED_MV: return VAMvModeMixedMv;
39 case MV_PMODE_INTENSITY_COMP: return VAMvModeIntensityCompensation;
40 }
41 return 0;
42 }
43
44 /** Check whether the MVTYPEMB bitplane is present */
45 static inline int vc1_has_MVTYPEMB_bitplane(const VC1Context *v)
46 {
47 if (v->mv_type_is_raw)
48 return 0;
49 return v->fcm == PROGRESSIVE &&
50 (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
51 (v->mv_mode == MV_PMODE_MIXED_MV ||
52 (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
53 v->mv_mode2 == MV_PMODE_MIXED_MV));
54 }
55
56 /** Check whether the SKIPMB bitplane is present */
57 static inline int vc1_has_SKIPMB_bitplane(const VC1Context *v)
58 {
59 if (v->skip_is_raw)
60 return 0;
61 return (v->fcm == PROGRESSIVE || v->fcm == ILACE_FRAME) &&
62 ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
63 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type));
64 }
65
66 /** Check whether the DIRECTMB bitplane is present */
67 static inline int vc1_has_DIRECTMB_bitplane(const VC1Context *v)
68 {
69 if (v->dmb_is_raw)
70 return 0;
71 return (v->fcm == PROGRESSIVE || v->fcm == ILACE_FRAME) &&
72 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
73 }
74
75 /** Check whether the ACPRED bitplane is present */
76 static inline int vc1_has_ACPRED_bitplane(const VC1Context *v)
77 {
78 if (v->acpred_is_raw)
79 return 0;
80 return v->profile == PROFILE_ADVANCED &&
81 (v->s.pict_type == AV_PICTURE_TYPE_I ||
82 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
83 }
84
85 /** Check whether the OVERFLAGS bitplane is present */
86 static inline int vc1_has_OVERFLAGS_bitplane(const VC1Context *v)
87 {
88 if (v->overflg_is_raw)
89 return 0;
90 return v->profile == PROFILE_ADVANCED &&
91 (v->s.pict_type == AV_PICTURE_TYPE_I ||
92 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type)) &&
93 (v->overlap && v->pq <= 8) &&
94 v->condover == CONDOVER_SELECT;
95 }
96
97 /** Check whether the FIELDTX bitplane is present */
98 static inline int vc1_has_FIELDTX_bitplane(const VC1Context *v)
99 {
100 if (v->fieldtx_is_raw)
101 return 0;
102 return v->fcm == ILACE_FRAME &&
103 (v->s.pict_type == AV_PICTURE_TYPE_I ||
104 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
105 }
106
107 /** Check whether the FORWARDMB bitplane is present */
108 static inline int vc1_has_FORWARDMB_bitplane(const VC1Context *v)
109 {
110 if (v->fmb_is_raw)
111 return 0;
112 return v->fcm == ILACE_FIELD &&
113 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
114 }
115
116 /** Reconstruct bitstream PTYPE (7.1.1.4, index into Table-35) */
117 static int vc1_get_PTYPE(const VC1Context *v)
118 {
119 const MpegEncContext *s = &v->s;
120 switch (s->pict_type) {
121 case AV_PICTURE_TYPE_I: return 0;
122 case AV_PICTURE_TYPE_P: return v->p_frame_skipped ? 4 : 1;
123 case AV_PICTURE_TYPE_B: return v->bi_type ? 3 : 2;
124 }
125 return 0;
126 }
127
128 /** Reconstruct bitstream FPTYPE (9.1.1.42, index into Table-105) */
129 static int vc1_get_FPTYPE(const VC1Context *v)
130 {
131 const MpegEncContext *s = &v->s;
132 switch (s->pict_type) {
133 case AV_PICTURE_TYPE_I: return 0;
134 case AV_PICTURE_TYPE_P: return 3;
135 case AV_PICTURE_TYPE_B: return v->bi_type ? 7 : 4;
136 }
137 return 0;
138 }
139
140 /** Reconstruct bitstream MVMODE (7.1.1.32) */
141 static inline VAMvModeVC1 vc1_get_MVMODE(const VC1Context *v)
142 {
143 if ((v->fcm == PROGRESSIVE || v->fcm == ILACE_FIELD) &&
144 ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
145 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type)))
146 return get_VAMvModeVC1(v->mv_mode);
147 return 0;
148 }
149
150 /** Reconstruct bitstream MVMODE2 (7.1.1.33) */
151 static inline VAMvModeVC1 vc1_get_MVMODE2(const VC1Context *v)
152 {
153 if ((v->fcm == PROGRESSIVE || v->fcm == ILACE_FIELD) &&
154 (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
155 v->mv_mode == MV_PMODE_INTENSITY_COMP)
156 return get_VAMvModeVC1(v->mv_mode2);
157 return 0;
158 }
159
160 av_unused static inline int vc1_get_INTCOMPFIELD(const VC1Context *v)
161 {
162 if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
163 v->fcm == ILACE_FIELD &&
164 v->mv_mode == MV_PMODE_INTENSITY_COMP)
165 switch (v->intcompfield) {
166 case 1: return 1;
167 case 2: return 2;
168 case 3: return 0;
169 }
170 return 0;
171 }
172
173 static inline int vc1_get_LUMSCALE(const VC1Context *v)
174 {
175 if (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) {
176 if ((v->fcm == PROGRESSIVE && v->mv_mode == MV_PMODE_INTENSITY_COMP) ||
177 (v->fcm == ILACE_FRAME && v->intcomp))
178 return v->lumscale;
179 else if (v->fcm == ILACE_FIELD && v->mv_mode == MV_PMODE_INTENSITY_COMP)
180 switch (v->intcompfield) {
181 case 1: return v->lumscale;
182 case 2: return v->lumscale2;
183 case 3: return v->lumscale;
184 }
185 }
186 return 0;
187 }
188
189 static inline int vc1_get_LUMSHIFT(const VC1Context *v)
190 {
191 if (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) {
192 if ((v->fcm == PROGRESSIVE && v->mv_mode == MV_PMODE_INTENSITY_COMP) ||
193 (v->fcm == ILACE_FRAME && v->intcomp))
194 return v->lumshift;
195 else if (v->fcm == ILACE_FIELD && v->mv_mode == MV_PMODE_INTENSITY_COMP)
196 switch (v->intcompfield) {
197 case 1: return v->lumshift;
198 case 2: return v->lumshift2;
199 case 3: return v->lumshift;
200 }
201 }
202 return 0;
203 }
204
205 av_unused static inline int vc1_get_LUMSCALE2(const VC1Context *v)
206 {
207 if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
208 v->fcm == ILACE_FIELD &&
209 v->mv_mode == MV_PMODE_INTENSITY_COMP &&
210 v->intcompfield == 3)
211 return v->lumscale2;
212 return 0;
213 }
214
215 av_unused static inline int vc1_get_LUMSHIFT2(const VC1Context *v)
216 {
217 if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
218 v->fcm == ILACE_FIELD &&
219 v->mv_mode == MV_PMODE_INTENSITY_COMP &&
220 v->intcompfield == 3)
221 return v->lumshift2;
222 return 0;
223 }
224
225 /** Reconstruct bitstream TTFRM (7.1.1.41, Table-53) */
226 static inline int vc1_get_TTFRM(const VC1Context *v)
227 {
228 switch (v->ttfrm) {
229 case TT_8X8: return 0;
230 case TT_8X4: return 1;
231 case TT_4X8: return 2;
232 case TT_4X4: return 3;
233 }
234 return 0;
235 }
236
237 /** Pack FFmpeg bitplanes into a VABitPlaneBuffer element */
238 static inline void vc1_pack_bitplanes(uint8_t *bitplane, int n, const uint8_t *ff_bp[3], int x, int y, int stride)
239 {
240 const int bitplane_index = n / 2;
241 const int ff_bp_index = y * stride + x;
242 uint8_t v = 0;
243 if (ff_bp[0])
244 v = ff_bp[0][ff_bp_index];
245 if (ff_bp[1])
246 v |= ff_bp[1][ff_bp_index] << 1;
247 if (ff_bp[2])
248 v |= ff_bp[2][ff_bp_index] << 2;
249 bitplane[bitplane_index] = (bitplane[bitplane_index] << 4) | v;
250 }
251
252 static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
253 {
254 const VC1Context *v = avctx->priv_data;
255 const MpegEncContext *s = &v->s;
256 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
257 VAPictureParameterBufferVC1 pic_param;
258 int err;
259
260 pic->output_surface = ff_vaapi_get_surface_id(s->current_picture_ptr->f);
261
262 pic_param = (VAPictureParameterBufferVC1) {
263 .forward_reference_picture = VA_INVALID_ID,
264 .backward_reference_picture = VA_INVALID_ID,
265 .inloop_decoded_picture = VA_INVALID_ID,
266 .sequence_fields.bits = {
267 .pulldown = v->broadcast,
268 .interlace = v->interlace,
269 .tfcntrflag = v->tfcntrflag,
270 .finterpflag = v->finterpflag,
271 .psf = v->psf,
272 .multires = v->multires,
273 .overlap = v->overlap,
274 .syncmarker = v->resync_marker,
275 .rangered = v->rangered,
276 .max_b_frames = s->avctx->max_b_frames,
277 .profile = v->profile,
278 },
279 .coded_width = s->avctx->coded_width,
280 .coded_height = s->avctx->coded_height,
281 .entrypoint_fields.bits = {
282 .broken_link = v->broken_link,
283 .closed_entry = v->closed_entry,
284 .panscan_flag = v->panscanflag,
285 .loopfilter = s->loop_filter,
286 },
287 .conditional_overlap_flag = v->condover,
288 .fast_uvmc_flag = v->fastuvmc,
289 .range_mapping_fields.bits = {
290 .luma_flag = v->range_mapy_flag,
291 .luma = v->range_mapy,
292 .chroma_flag = v->range_mapuv_flag,
293 .chroma = v->range_mapuv,
294 },
295 .b_picture_fraction = v->bfraction_lut_index,
296 .cbp_table = (v->fcm == PROGRESSIVE ? v->cbptab : v->icbptab),
297 .mb_mode_table = v->mbmodetab,
298 .range_reduction_frame = v->rangeredfrm,
299 .rounding_control = v->rnd,
300 .post_processing = v->postproc,
301 .picture_resolution_index = v->respic,
302 .picture_fields.bits = {
303 .picture_type = (v->fcm == ILACE_FIELD ? vc1_get_FPTYPE(v) : vc1_get_PTYPE(v)),
304 .frame_coding_mode = v->fcm,
305 .top_field_first = v->tff,
306 .is_first_field = !v->second_field,
307 .intensity_compensation = v->intcomp,
308 },
309 .luma_scale = vc1_get_LUMSCALE(v),
310 .luma_shift = vc1_get_LUMSHIFT(v),
311 #if VA_CHECK_VERSION(1, 1, 0)
312 .luma_scale2 = vc1_get_LUMSCALE2(v),
313 .luma_shift2 = vc1_get_LUMSHIFT2(v),
314 .intensity_compensation_field = vc1_get_INTCOMPFIELD(v),
315 #endif
316 .raw_coding.flags = {
317 .mv_type_mb = v->mv_type_is_raw,
318 .direct_mb = v->dmb_is_raw,
319 .skip_mb = v->skip_is_raw,
320 .field_tx = v->fieldtx_is_raw,
321 .forward_mb = v->fmb_is_raw,
322 .ac_pred = v->acpred_is_raw,
323 .overflags = v->overflg_is_raw,
324 },
325 .bitplane_present.flags = {
326 .bp_mv_type_mb = vc1_has_MVTYPEMB_bitplane(v),
327 .bp_direct_mb = vc1_has_DIRECTMB_bitplane(v),
328 .bp_skip_mb = vc1_has_SKIPMB_bitplane(v),
329 .bp_field_tx = vc1_has_FIELDTX_bitplane(v),
330 .bp_forward_mb = vc1_has_FORWARDMB_bitplane(v),
331 .bp_ac_pred = vc1_has_ACPRED_bitplane(v),
332 .bp_overflags = vc1_has_OVERFLAGS_bitplane(v),
333 },
334 .reference_fields.bits = {
335 .reference_distance_flag = v->refdist_flag,
336 .reference_distance = v->refdist,
337 .num_reference_pictures = v->numref,
338 .reference_field_pic_indicator = v->reffield,
339 },
340 .mv_fields.bits = {
341 .mv_mode = vc1_get_MVMODE(v),
342 .mv_mode2 = vc1_get_MVMODE2(v),
343 .mv_table = (v->fcm == PROGRESSIVE ? s->mv_table_index : v->imvtab),
344 .two_mv_block_pattern_table = v->twomvbptab,
345 .four_mv_switch = v->fourmvswitch,
346 .four_mv_block_pattern_table = v->fourmvbptab,
347 .extended_mv_flag = v->extended_mv,
348 .extended_mv_range = v->mvrange,
349 .extended_dmv_flag = v->extended_dmv,
350 .extended_dmv_range = v->dmvrange,
351 },
352 .pic_quantizer_fields.bits = {
353 .dquant = v->dquant,
354 .quantizer = v->quantizer_mode,
355 .half_qp = v->halfpq,
356 .pic_quantizer_scale = v->pq,
357 .pic_quantizer_type = v->pquantizer,
358 .dq_frame = v->dquantfrm,
359 .dq_profile = v->dqprofile,
360 .dq_sb_edge = v->dqprofile == DQPROFILE_SINGLE_EDGE ? v->dqsbedge : 0,
361 .dq_db_edge = v->dqprofile == DQPROFILE_DOUBLE_EDGES ? v->dqsbedge : 0,
362 .dq_binary_level = v->dqbilevel,
363 .alt_pic_quantizer = v->altpq,
364 },
365 .transform_fields.bits = {
366 .variable_sized_transform_flag = v->vstransform,
367 .mb_level_transform_type_flag = v->ttmbf,
368 .frame_level_transform_type = vc1_get_TTFRM(v),
369 .transform_ac_codingset_idx1 = v->c_ac_table_index,
370 .transform_ac_codingset_idx2 = v->y_ac_table_index,
371 .intra_transform_dc_table = v->s.dc_table_index,
372 },
373 };
374
375 switch (s->pict_type) {
376 case AV_PICTURE_TYPE_B:
377 pic_param.backward_reference_picture = ff_vaapi_get_surface_id(s->next_picture.f);
378 // fall-through
379 case AV_PICTURE_TYPE_P:
380 pic_param.forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
381 break;
382 }
383
384 err = ff_vaapi_decode_make_param_buffer(avctx, pic,
385 VAPictureParameterBufferType,
386 &pic_param, sizeof(pic_param));
387 if (err)
388 goto fail;
389
390 if (pic_param.bitplane_present.value & 0x7f) {
391 uint8_t *bitplane;
392 const uint8_t *ff_bp[3];
393 int x, y, n;
394 size_t size = (s->mb_width * s->mb_height + 1) / 2;
395
396 bitplane = av_mallocz(size);
397 if (!bitplane) {
398 err = AVERROR(ENOMEM);
399 goto fail;
400 }
401
402 switch (s->pict_type) {
403 case AV_PICTURE_TYPE_P:
404 ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL;
405 ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL;
406 ff_bp[2] = pic_param.bitplane_present.flags.bp_mv_type_mb ? v->mv_type_mb_plane : NULL;
407 break;
408 case AV_PICTURE_TYPE_B:
409 if (!v->bi_type) {
410 ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL;
411 ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL;
412 ff_bp[2] = pic_param.bitplane_present.flags.bp_forward_mb ? v->forward_mb_plane : NULL;
413 break;
414 }
415 /* fall-through (BI-type) */
416 case AV_PICTURE_TYPE_I:
417 ff_bp[0] = pic_param.bitplane_present.flags.bp_field_tx ? v->fieldtx_plane : NULL;
418 ff_bp[1] = pic_param.bitplane_present.flags.bp_ac_pred ? v->acpred_plane : NULL;
419 ff_bp[2] = pic_param.bitplane_present.flags.bp_overflags ? v->over_flags_plane : NULL;
420 break;
421 default:
422 ff_bp[0] = NULL;
423 ff_bp[1] = NULL;
424 ff_bp[2] = NULL;
425 break;
426 }
427
428 n = 0;
429 for (y = 0; y < s->mb_height; y++)
430 for (x = 0; x < s->mb_width; x++, n++)
431 vc1_pack_bitplanes(bitplane, n, ff_bp, x, y, s->mb_stride);
432 if (n & 1) /* move last nibble to the high order */
433 bitplane[n/2] <<= 4;
434
435 err = ff_vaapi_decode_make_param_buffer(avctx, pic,
436 VABitPlaneBufferType,
437 bitplane, size);
438 av_free(bitplane);
439 if (err)
440 goto fail;
441 }
442 return 0;
443
444 fail:
445 ff_vaapi_decode_cancel(avctx, pic);
446 return err;
447 }
448
449 static int vaapi_vc1_end_frame(AVCodecContext *avctx)
450 {
451 VC1Context *v = avctx->priv_data;
452 MpegEncContext *s = &v->s;
453 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
454 int ret;
455
456 ret = ff_vaapi_decode_issue(avctx, pic);
457 if (ret < 0)
458 goto fail;
459
460 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
461
462 fail:
463 return ret;
464 }
465
466 static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
467 {
468 const VC1Context *v = avctx->priv_data;
469 const MpegEncContext *s = &v->s;
470 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
471 VASliceParameterBufferVC1 slice_param;
472 int mb_height;
473 int err;
474
475 /* Current bit buffer is beyond any marker for VC-1, so skip it */
476 if (avctx->codec_id == AV_CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
477 buffer += 4;
478 size -= 4;
479 }
480
481 if (v->fcm == ILACE_FIELD)
482 mb_height = avctx->coded_height + 31 >> 5;
483 else
484 mb_height = avctx->coded_height + 15 >> 4;
485
486 slice_param = (VASliceParameterBufferVC1) {
487 .slice_data_size = size,
488 .slice_data_offset = 0,
489 .slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
490 .macroblock_offset = get_bits_count(&s->gb),
491 .slice_vertical_position = s->mb_y % mb_height,
492 };
493
494 err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
495 &slice_param, sizeof(slice_param),
496 buffer, size);
497 if (err < 0) {
498 ff_vaapi_decode_cancel(avctx, pic);
499 return err;
500 }
501
502 return 0;
503 }
504
505 #if CONFIG_WMV3_VAAPI_HWACCEL
506 const AVHWAccel ff_wmv3_vaapi_hwaccel = {
507 .name = "wmv3_vaapi",
508 .type = AVMEDIA_TYPE_VIDEO,
509 .id = AV_CODEC_ID_WMV3,
510 .pix_fmt = AV_PIX_FMT_VAAPI,
511 .start_frame = &vaapi_vc1_start_frame,
512 .end_frame = &vaapi_vc1_end_frame,
513 .decode_slice = &vaapi_vc1_decode_slice,
514 .frame_priv_data_size = sizeof(VAAPIDecodePicture),
515 .init = &ff_vaapi_decode_init,
516 .uninit = &ff_vaapi_decode_uninit,
517 .frame_params = &ff_vaapi_common_frame_params,
518 .priv_data_size = sizeof(VAAPIDecodeContext),
519 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
520 };
521 #endif
522
523 const AVHWAccel ff_vc1_vaapi_hwaccel = {
524 .name = "vc1_vaapi",
525 .type = AVMEDIA_TYPE_VIDEO,
526 .id = AV_CODEC_ID_VC1,
527 .pix_fmt = AV_PIX_FMT_VAAPI,
528 .start_frame = &vaapi_vc1_start_frame,
529 .end_frame = &vaapi_vc1_end_frame,
530 .decode_slice = &vaapi_vc1_decode_slice,
531 .frame_priv_data_size = sizeof(VAAPIDecodePicture),
532 .init = &ff_vaapi_decode_init,
533 .uninit = &ff_vaapi_decode_uninit,
534 .frame_params = &ff_vaapi_common_frame_params,
535 .priv_data_size = sizeof(VAAPIDecodeContext),
536 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
537 };
538