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path: root/libavcodec/vaapi_vc1.c (plain)
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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 "hwaccel.h"
24#include "internal.h"
25#include "vaapi_decode.h"
26#include "vc1.h"
27#include "vc1data.h"
28
29/** Translate FFmpeg MV modes to VA API */
30static int get_VAMvModeVC1(enum MVModes mv_mode)
31{
32 switch (mv_mode) {
33 case MV_PMODE_1MV_HPEL_BILIN: return VAMvMode1MvHalfPelBilinear;
34 case MV_PMODE_1MV: return VAMvMode1Mv;
35 case MV_PMODE_1MV_HPEL: return VAMvMode1MvHalfPel;
36 case MV_PMODE_MIXED_MV: return VAMvModeMixedMv;
37 case MV_PMODE_INTENSITY_COMP: return VAMvModeIntensityCompensation;
38 }
39 return 0;
40}
41
42/** Check whether the MVTYPEMB bitplane is present */
43static inline int vc1_has_MVTYPEMB_bitplane(const VC1Context *v)
44{
45 if (v->mv_type_is_raw)
46 return 0;
47 return v->s.pict_type == AV_PICTURE_TYPE_P &&
48 (v->mv_mode == MV_PMODE_MIXED_MV ||
49 (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
50 v->mv_mode2 == MV_PMODE_MIXED_MV));
51}
52
53/** Check whether the SKIPMB bitplane is present */
54static inline int vc1_has_SKIPMB_bitplane(const VC1Context *v)
55{
56 if (v->skip_is_raw)
57 return 0;
58 return v->s.pict_type == AV_PICTURE_TYPE_P ||
59 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
60}
61
62/** Check whether the DIRECTMB bitplane is present */
63static inline int vc1_has_DIRECTMB_bitplane(const VC1Context *v)
64{
65 if (v->dmb_is_raw)
66 return 0;
67 return v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
68}
69
70/** Check whether the ACPRED bitplane is present */
71static inline int vc1_has_ACPRED_bitplane(const VC1Context *v)
72{
73 if (v->acpred_is_raw)
74 return 0;
75 return v->profile == PROFILE_ADVANCED &&
76 (v->s.pict_type == AV_PICTURE_TYPE_I ||
77 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
78}
79
80/** Check whether the OVERFLAGS bitplane is present */
81static inline int vc1_has_OVERFLAGS_bitplane(const VC1Context *v)
82{
83 if (v->overflg_is_raw)
84 return 0;
85 return v->profile == PROFILE_ADVANCED &&
86 (v->s.pict_type == AV_PICTURE_TYPE_I ||
87 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type)) &&
88 (v->overlap && v->pq <= 8) &&
89 v->condover == CONDOVER_SELECT;
90}
91
92/** Reconstruct bitstream PTYPE (7.1.1.4, index into Table-35) */
93static int vc1_get_PTYPE(const VC1Context *v)
94{
95 const MpegEncContext *s = &v->s;
96 switch (s->pict_type) {
97 case AV_PICTURE_TYPE_I: return 0;
98 case AV_PICTURE_TYPE_P: return v->p_frame_skipped ? 4 : 1;
99 case AV_PICTURE_TYPE_B: return v->bi_type ? 3 : 2;
100 }
101 return 0;
102}
103
104/** Reconstruct bitstream MVMODE (7.1.1.32) */
105static inline VAMvModeVC1 vc1_get_MVMODE(const VC1Context *v)
106{
107 if (v->s.pict_type == AV_PICTURE_TYPE_P ||
108 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type))
109 return get_VAMvModeVC1(v->mv_mode);
110 return 0;
111}
112
113/** Reconstruct bitstream MVMODE2 (7.1.1.33) */
114static inline VAMvModeVC1 vc1_get_MVMODE2(const VC1Context *v)
115{
116 if (v->s.pict_type == AV_PICTURE_TYPE_P && v->mv_mode == MV_PMODE_INTENSITY_COMP)
117 return get_VAMvModeVC1(v->mv_mode2);
118 return 0;
119}
120
121/** Reconstruct bitstream TTFRM (7.1.1.41, Table-53) */
122static inline int vc1_get_TTFRM(const VC1Context *v)
123{
124 switch (v->ttfrm) {
125 case TT_8X8: return 0;
126 case TT_8X4: return 1;
127 case TT_4X8: return 2;
128 case TT_4X4: return 3;
129 }
130 return 0;
131}
132
133/** Pack FFmpeg bitplanes into a VABitPlaneBuffer element */
134static inline void vc1_pack_bitplanes(uint8_t *bitplane, int n, const uint8_t *ff_bp[3], int x, int y, int stride)
135{
136 const int bitplane_index = n / 2;
137 const int ff_bp_index = y * stride + x;
138 uint8_t v = 0;
139 if (ff_bp[0])
140 v = ff_bp[0][ff_bp_index];
141 if (ff_bp[1])
142 v |= ff_bp[1][ff_bp_index] << 1;
143 if (ff_bp[2])
144 v |= ff_bp[2][ff_bp_index] << 2;
145 bitplane[bitplane_index] = (bitplane[bitplane_index] << 4) | v;
146}
147
148static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
149{
150 const VC1Context *v = avctx->priv_data;
151 const MpegEncContext *s = &v->s;
152 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
153 VAPictureParameterBufferVC1 pic_param;
154 int err;
155
156 pic->output_surface = ff_vaapi_get_surface_id(s->current_picture_ptr->f);
157
158 pic_param = (VAPictureParameterBufferVC1) {
159 .forward_reference_picture = VA_INVALID_ID,
160 .backward_reference_picture = VA_INVALID_ID,
161 .inloop_decoded_picture = VA_INVALID_ID,
162 .sequence_fields.bits = {
163 .pulldown = v->broadcast,
164 .interlace = v->interlace,
165 .tfcntrflag = v->tfcntrflag,
166 .finterpflag = v->finterpflag,
167 .psf = v->psf,
168 .multires = v->multires,
169 .overlap = v->overlap,
170 .syncmarker = v->resync_marker,
171 .rangered = v->rangered,
172 .max_b_frames = s->avctx->max_b_frames,
173 .profile = v->profile,
174 },
175 .coded_width = s->avctx->coded_width,
176 .coded_height = s->avctx->coded_height,
177 .entrypoint_fields.bits = {
178 .broken_link = v->broken_link,
179 .closed_entry = v->closed_entry,
180 .panscan_flag = v->panscanflag,
181 .loopfilter = s->loop_filter,
182 },
183 .conditional_overlap_flag = v->condover,
184 .fast_uvmc_flag = v->fastuvmc,
185 .range_mapping_fields.bits = {
186 .luma_flag = v->range_mapy_flag,
187 .luma = v->range_mapy,
188 .chroma_flag = v->range_mapuv_flag,
189 .chroma = v->range_mapuv,
190 },
191 .b_picture_fraction = v->bfraction_lut_index,
192 .cbp_table = v->cbpcy_vlc ? v->cbpcy_vlc - ff_vc1_cbpcy_p_vlc : 0,
193 .mb_mode_table = 0, /* XXX: interlaced frame */
194 .range_reduction_frame = v->rangeredfrm,
195 .rounding_control = v->rnd,
196 .post_processing = v->postproc,
197 .picture_resolution_index = v->respic,
198 .luma_scale = v->lumscale,
199 .luma_shift = v->lumshift,
200 .picture_fields.bits = {
201 .picture_type = vc1_get_PTYPE(v),
202 .frame_coding_mode = v->fcm,
203 .top_field_first = v->tff,
204 .is_first_field = v->fcm == 0, /* XXX: interlaced frame */
205 .intensity_compensation = v->mv_mode == MV_PMODE_INTENSITY_COMP,
206 },
207 .raw_coding.flags = {
208 .mv_type_mb = v->mv_type_is_raw,
209 .direct_mb = v->dmb_is_raw,
210 .skip_mb = v->skip_is_raw,
211 .field_tx = 0, /* XXX: interlaced frame */
212 .forward_mb = 0, /* XXX: interlaced frame */
213 .ac_pred = v->acpred_is_raw,
214 .overflags = v->overflg_is_raw,
215 },
216 .bitplane_present.flags = {
217 .bp_mv_type_mb = vc1_has_MVTYPEMB_bitplane(v),
218 .bp_direct_mb = vc1_has_DIRECTMB_bitplane(v),
219 .bp_skip_mb = vc1_has_SKIPMB_bitplane(v),
220 .bp_field_tx = 0, /* XXX: interlaced frame */
221 .bp_forward_mb = 0, /* XXX: interlaced frame */
222 .bp_ac_pred = vc1_has_ACPRED_bitplane(v),
223 .bp_overflags = vc1_has_OVERFLAGS_bitplane(v),
224 },
225 .reference_fields.bits = {
226 .reference_distance_flag = v->refdist_flag,
227 .reference_distance = 0, /* XXX: interlaced frame */
228 .num_reference_pictures = 0, /* XXX: interlaced frame */
229 .reference_field_pic_indicator = 0, /* XXX: interlaced frame */
230 },
231 .mv_fields.bits = {
232 .mv_mode = vc1_get_MVMODE(v),
233 .mv_mode2 = vc1_get_MVMODE2(v),
234 .mv_table = s->mv_table_index,
235 .two_mv_block_pattern_table = 0, /* XXX: interlaced frame */
236 .four_mv_switch = 0, /* XXX: interlaced frame */
237 .four_mv_block_pattern_table = 0, /* XXX: interlaced frame */
238 .extended_mv_flag = v->extended_mv,
239 .extended_mv_range = v->mvrange,
240 .extended_dmv_flag = v->extended_dmv,
241 .extended_dmv_range = 0, /* XXX: interlaced frame */
242 },
243 .pic_quantizer_fields.bits = {
244 .dquant = v->dquant,
245 .quantizer = v->quantizer_mode,
246 .half_qp = v->halfpq,
247 .pic_quantizer_scale = v->pq,
248 .pic_quantizer_type = v->pquantizer,
249 .dq_frame = v->dquantfrm,
250 .dq_profile = v->dqprofile,
251 .dq_sb_edge = v->dqprofile == DQPROFILE_SINGLE_EDGE ? v->dqsbedge : 0,
252 .dq_db_edge = v->dqprofile == DQPROFILE_DOUBLE_EDGES ? v->dqsbedge : 0,
253 .dq_binary_level = v->dqbilevel,
254 .alt_pic_quantizer = v->altpq,
255 },
256 .transform_fields.bits = {
257 .variable_sized_transform_flag = v->vstransform,
258 .mb_level_transform_type_flag = v->ttmbf,
259 .frame_level_transform_type = vc1_get_TTFRM(v),
260 .transform_ac_codingset_idx1 = v->c_ac_table_index,
261 .transform_ac_codingset_idx2 = v->y_ac_table_index,
262 .intra_transform_dc_table = v->s.dc_table_index,
263 },
264 };
265
266 switch (s->pict_type) {
267 case AV_PICTURE_TYPE_B:
268 pic_param.backward_reference_picture = ff_vaapi_get_surface_id(s->next_picture.f);
269 // fall-through
270 case AV_PICTURE_TYPE_P:
271 pic_param.forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
272 break;
273 }
274
275 err = ff_vaapi_decode_make_param_buffer(avctx, pic,
276 VAPictureParameterBufferType,
277 &pic_param, sizeof(pic_param));
278 if (err)
279 goto fail;
280
281 if (pic_param.bitplane_present.value) {
282 uint8_t *bitplane;
283 const uint8_t *ff_bp[3];
284 int x, y, n;
285 size_t size = (s->mb_width * s->mb_height + 1) / 2;
286
287 bitplane = av_mallocz(size);
288 if (!bitplane) {
289 err = AVERROR(ENOMEM);
290 goto fail;
291 }
292
293 switch (s->pict_type) {
294 case AV_PICTURE_TYPE_P:
295 ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL;
296 ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL;
297 ff_bp[2] = pic_param.bitplane_present.flags.bp_mv_type_mb ? v->mv_type_mb_plane : NULL;
298 break;
299 case AV_PICTURE_TYPE_B:
300 if (!v->bi_type) {
301 ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL;
302 ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL;
303 ff_bp[2] = NULL; /* XXX: interlaced frame (FORWARD plane) */
304 break;
305 }
306 /* fall-through (BI-type) */
307 case AV_PICTURE_TYPE_I:
308 ff_bp[0] = NULL; /* XXX: interlaced frame (FIELDTX plane) */
309 ff_bp[1] = pic_param.bitplane_present.flags.bp_ac_pred ? v->acpred_plane : NULL;
310 ff_bp[2] = pic_param.bitplane_present.flags.bp_overflags ? v->over_flags_plane : NULL;
311 break;
312 default:
313 ff_bp[0] = NULL;
314 ff_bp[1] = NULL;
315 ff_bp[2] = NULL;
316 break;
317 }
318
319 n = 0;
320 for (y = 0; y < s->mb_height; y++)
321 for (x = 0; x < s->mb_width; x++, n++)
322 vc1_pack_bitplanes(bitplane, n, ff_bp, x, y, s->mb_stride);
323 if (n & 1) /* move last nibble to the high order */
324 bitplane[n/2] <<= 4;
325
326 err = ff_vaapi_decode_make_param_buffer(avctx, pic,
327 VABitPlaneBufferType,
328 bitplane, size);
329 av_free(bitplane);
330 if (err)
331 goto fail;
332 }
333 return 0;
334
335fail:
336 ff_vaapi_decode_cancel(avctx, pic);
337 return err;
338}
339
340static int vaapi_vc1_end_frame(AVCodecContext *avctx)
341{
342 VC1Context *v = avctx->priv_data;
343 MpegEncContext *s = &v->s;
344 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
345 int ret;
346
347 ret = ff_vaapi_decode_issue(avctx, pic);
348 if (ret < 0)
349 goto fail;
350
351 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
352
353fail:
354 return ret;
355}
356
357static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
358{
359 const VC1Context *v = avctx->priv_data;
360 const MpegEncContext *s = &v->s;
361 VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
362 VASliceParameterBufferVC1 slice_param;
363 int err;
364
365 /* Current bit buffer is beyond any marker for VC-1, so skip it */
366 if (avctx->codec_id == AV_CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
367 buffer += 4;
368 size -= 4;
369 }
370
371 slice_param = (VASliceParameterBufferVC1) {
372 .slice_data_size = size,
373 .slice_data_offset = 0,
374 .slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
375 .macroblock_offset = get_bits_count(&s->gb),
376 .slice_vertical_position = s->mb_y,
377 };
378
379 err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
380 &slice_param, sizeof(slice_param),
381 buffer, size);
382 if (err < 0) {
383 ff_vaapi_decode_cancel(avctx, pic);
384 return err;
385 }
386
387 return 0;
388}
389
390#if CONFIG_WMV3_VAAPI_HWACCEL
391AVHWAccel ff_wmv3_vaapi_hwaccel = {
392 .name = "wmv3_vaapi",
393 .type = AVMEDIA_TYPE_VIDEO,
394 .id = AV_CODEC_ID_WMV3,
395 .pix_fmt = AV_PIX_FMT_VAAPI,
396 .start_frame = &vaapi_vc1_start_frame,
397 .end_frame = &vaapi_vc1_end_frame,
398 .decode_slice = &vaapi_vc1_decode_slice,
399 .frame_priv_data_size = sizeof(VAAPIDecodePicture),
400 .init = &ff_vaapi_decode_init,
401 .uninit = &ff_vaapi_decode_uninit,
402 .priv_data_size = sizeof(VAAPIDecodeContext),
403 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
404};
405#endif
406
407AVHWAccel ff_vc1_vaapi_hwaccel = {
408 .name = "vc1_vaapi",
409 .type = AVMEDIA_TYPE_VIDEO,
410 .id = AV_CODEC_ID_VC1,
411 .pix_fmt = AV_PIX_FMT_VAAPI,
412 .start_frame = &vaapi_vc1_start_frame,
413 .end_frame = &vaapi_vc1_end_frame,
414 .decode_slice = &vaapi_vc1_decode_slice,
415 .frame_priv_data_size = sizeof(VAAPIDecodePicture),
416 .init = &ff_vaapi_decode_init,
417 .uninit = &ff_vaapi_decode_uninit,
418 .priv_data_size = sizeof(VAAPIDecodeContext),
419 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
420};
421
generated by cgit at 2024-05-17 03:31:41 (GMT)