Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / libavcodec / vaapi_vc1.c
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 "vaapi_internal.h"
24 #include "vc1.h"
25 #include "vc1data.h"
26
27 /** Translate FFmpeg MV modes to VA API */
28 static int get_VAMvModeVC1(enum MVModes mv_mode)
29 {
30     switch (mv_mode) {
31     case MV_PMODE_1MV_HPEL_BILIN: return VAMvMode1MvHalfPelBilinear;
32     case MV_PMODE_1MV:            return VAMvMode1Mv;
33     case MV_PMODE_1MV_HPEL:       return VAMvMode1MvHalfPel;
34     case MV_PMODE_MIXED_MV:       return VAMvModeMixedMv;
35     case MV_PMODE_INTENSITY_COMP: return VAMvModeIntensityCompensation;
36     }
37     return 0;
38 }
39
40 /** Check whether the MVTYPEMB bitplane is present */
41 static inline int vc1_has_MVTYPEMB_bitplane(VC1Context *v)
42 {
43     if (v->mv_type_is_raw)
44         return 0;
45     return v->s.pict_type == AV_PICTURE_TYPE_P &&
46            (v->mv_mode == MV_PMODE_MIXED_MV ||
47             (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
48              v->mv_mode2 == MV_PMODE_MIXED_MV));
49 }
50
51 /** Check whether the SKIPMB bitplane is present */
52 static inline int vc1_has_SKIPMB_bitplane(VC1Context *v)
53 {
54     if (v->skip_is_raw)
55         return 0;
56     return v->s.pict_type == AV_PICTURE_TYPE_P ||
57            (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
58 }
59
60 /** Check whether the DIRECTMB bitplane is present */
61 static inline int vc1_has_DIRECTMB_bitplane(VC1Context *v)
62 {
63     if (v->dmb_is_raw)
64         return 0;
65     return v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
66 }
67
68 /** Check whether the ACPRED bitplane is present */
69 static inline int vc1_has_ACPRED_bitplane(VC1Context *v)
70 {
71     if (v->acpred_is_raw)
72         return 0;
73     return v->profile == PROFILE_ADVANCED &&
74            (v->s.pict_type == AV_PICTURE_TYPE_I ||
75             (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
76 }
77
78 /** Check whether the OVERFLAGS bitplane is present */
79 static inline int vc1_has_OVERFLAGS_bitplane(VC1Context *v)
80 {
81     if (v->overflg_is_raw)
82         return 0;
83     return v->profile == PROFILE_ADVANCED &&
84            (v->s.pict_type == AV_PICTURE_TYPE_I ||
85             (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type)) &&
86            (v->overlap && v->pq <= 8) &&
87            v->condover == CONDOVER_SELECT;
88 }
89
90 /** Reconstruct bitstream PTYPE (7.1.1.4, index into Table-35) */
91 static int vc1_get_PTYPE(VC1Context *v)
92 {
93     MpegEncContext * const s = &v->s;
94     switch (s->pict_type) {
95     case AV_PICTURE_TYPE_I: return 0;
96     case AV_PICTURE_TYPE_P: return v->p_frame_skipped ? 4 : 1;
97     case AV_PICTURE_TYPE_B: return v->bi_type         ? 3 : 2;
98     }
99     return 0;
100 }
101
102 /** Reconstruct bitstream MVMODE (7.1.1.32) */
103 static inline VAMvModeVC1 vc1_get_MVMODE(VC1Context *v)
104 {
105     if (v->s.pict_type == AV_PICTURE_TYPE_P ||
106         (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type))
107         return get_VAMvModeVC1(v->mv_mode);
108     return 0;
109 }
110
111 /** Reconstruct bitstream MVMODE2 (7.1.1.33) */
112 static inline VAMvModeVC1 vc1_get_MVMODE2(VC1Context *v)
113 {
114     if (v->s.pict_type == AV_PICTURE_TYPE_P && v->mv_mode == MV_PMODE_INTENSITY_COMP)
115         return get_VAMvModeVC1(v->mv_mode2);
116     return 0;
117 }
118
119 /** Reconstruct bitstream TTFRM (7.1.1.41, Table-53) */
120 static inline int vc1_get_TTFRM(VC1Context *v)
121 {
122     switch (v->ttfrm) {
123     case TT_8X8: return 0;
124     case TT_8X4: return 1;
125     case TT_4X8: return 2;
126     case TT_4X4: return 3;
127     }
128     return 0;
129 }
130
131 /** Pack FFmpeg bitplanes into a VABitPlaneBuffer element */
132 static inline void vc1_pack_bitplanes(uint8_t *bitplane, int n, const uint8_t *ff_bp[3], int x, int y, int stride)
133 {
134     const int bitplane_index = n / 2;
135     const int ff_bp_index = y * stride + x;
136     uint8_t v = 0;
137     if (ff_bp[0])
138         v = ff_bp[0][ff_bp_index];
139     if (ff_bp[1])
140         v |= ff_bp[1][ff_bp_index] << 1;
141     if (ff_bp[2])
142         v |= ff_bp[2][ff_bp_index] << 2;
143     bitplane[bitplane_index] = (bitplane[bitplane_index] << 4) | v;
144 }
145
146 static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
147 {
148     VC1Context * const v = avctx->priv_data;
149     MpegEncContext * const s = &v->s;
150     struct vaapi_context * const vactx = avctx->hwaccel_context;
151     VAPictureParameterBufferVC1 *pic_param;
152
153     av_dlog(avctx, "vaapi_vc1_start_frame()\n");
154
155     vactx->slice_param_size = sizeof(VASliceParameterBufferVC1);
156
157     /* Fill in VAPictureParameterBufferVC1 */
158     pic_param = ff_vaapi_alloc_pic_param(vactx, sizeof(VAPictureParameterBufferVC1));
159     if (!pic_param)
160         return -1;
161     pic_param->forward_reference_picture                            = VA_INVALID_ID;
162     pic_param->backward_reference_picture                           = VA_INVALID_ID;
163     pic_param->inloop_decoded_picture                               = VA_INVALID_ID;
164     pic_param->sequence_fields.value                                = 0; /* reset all bits */
165     pic_param->sequence_fields.bits.pulldown                        = v->broadcast;
166     pic_param->sequence_fields.bits.interlace                       = v->interlace;
167     pic_param->sequence_fields.bits.tfcntrflag                      = v->tfcntrflag;
168     pic_param->sequence_fields.bits.finterpflag                     = v->finterpflag;
169     pic_param->sequence_fields.bits.psf                             = v->psf;
170     pic_param->sequence_fields.bits.multires                        = v->multires;
171     pic_param->sequence_fields.bits.overlap                         = v->overlap;
172     pic_param->sequence_fields.bits.syncmarker                      = s->resync_marker;
173     pic_param->sequence_fields.bits.rangered                        = v->rangered;
174     pic_param->sequence_fields.bits.max_b_frames                    = s->avctx->max_b_frames;
175 #if VA_CHECK_VERSION(0,32,0)
176     pic_param->sequence_fields.bits.profile                         = v->profile;
177 #endif
178     pic_param->coded_width                                          = s->avctx->coded_width;
179     pic_param->coded_height                                         = s->avctx->coded_height;
180     pic_param->entrypoint_fields.value                              = 0; /* reset all bits */
181     pic_param->entrypoint_fields.bits.broken_link                   = v->broken_link;
182     pic_param->entrypoint_fields.bits.closed_entry                  = v->closed_entry;
183     pic_param->entrypoint_fields.bits.panscan_flag                  = v->panscanflag;
184     pic_param->entrypoint_fields.bits.loopfilter                    = s->loop_filter;
185     pic_param->conditional_overlap_flag                             = v->condover;
186     pic_param->fast_uvmc_flag                                       = v->fastuvmc;
187     pic_param->range_mapping_fields.value                           = 0; /* reset all bits */
188     pic_param->range_mapping_fields.bits.luma_flag                  = v->range_mapy_flag;
189     pic_param->range_mapping_fields.bits.luma                       = v->range_mapy;
190     pic_param->range_mapping_fields.bits.chroma_flag                = v->range_mapuv_flag;
191     pic_param->range_mapping_fields.bits.chroma                     = v->range_mapuv;
192     pic_param->b_picture_fraction                                   = v->bfraction_lut_index;
193     pic_param->cbp_table                                            = v->cbpcy_vlc ? v->cbpcy_vlc - ff_vc1_cbpcy_p_vlc : 0;
194     pic_param->mb_mode_table                                        = 0; /* XXX: interlaced frame */
195     pic_param->range_reduction_frame                                = v->rangeredfrm;
196     pic_param->rounding_control                                     = v->rnd;
197     pic_param->post_processing                                      = v->postproc;
198     pic_param->picture_resolution_index                             = v->respic;
199     pic_param->luma_scale                                           = v->lumscale;
200     pic_param->luma_shift                                           = v->lumshift;
201     pic_param->picture_fields.value                                 = 0; /* reset all bits */
202     pic_param->picture_fields.bits.picture_type                     = vc1_get_PTYPE(v);
203     pic_param->picture_fields.bits.frame_coding_mode                = v->fcm;
204     pic_param->picture_fields.bits.top_field_first                  = v->tff;
205     pic_param->picture_fields.bits.is_first_field                   = v->fcm == 0; /* XXX: interlaced frame */
206     pic_param->picture_fields.bits.intensity_compensation           = v->mv_mode == MV_PMODE_INTENSITY_COMP;
207     pic_param->raw_coding.value                                     = 0; /* reset all bits */
208     pic_param->raw_coding.flags.mv_type_mb                          = v->mv_type_is_raw;
209     pic_param->raw_coding.flags.direct_mb                           = v->dmb_is_raw;
210     pic_param->raw_coding.flags.skip_mb                             = v->skip_is_raw;
211     pic_param->raw_coding.flags.field_tx                            = 0; /* XXX: interlaced frame */
212     pic_param->raw_coding.flags.forward_mb                          = 0; /* XXX: interlaced frame */
213     pic_param->raw_coding.flags.ac_pred                             = v->acpred_is_raw;
214     pic_param->raw_coding.flags.overflags                           = v->overflg_is_raw;
215     pic_param->bitplane_present.value                               = 0; /* reset all bits */
216     pic_param->bitplane_present.flags.bp_mv_type_mb                 = vc1_has_MVTYPEMB_bitplane(v);
217     pic_param->bitplane_present.flags.bp_direct_mb                  = vc1_has_DIRECTMB_bitplane(v);
218     pic_param->bitplane_present.flags.bp_skip_mb                    = vc1_has_SKIPMB_bitplane(v);
219     pic_param->bitplane_present.flags.bp_field_tx                   = 0; /* XXX: interlaced frame */
220     pic_param->bitplane_present.flags.bp_forward_mb                 = 0; /* XXX: interlaced frame */
221     pic_param->bitplane_present.flags.bp_ac_pred                    = vc1_has_ACPRED_bitplane(v);
222     pic_param->bitplane_present.flags.bp_overflags                  = vc1_has_OVERFLAGS_bitplane(v);
223     pic_param->reference_fields.value                               = 0; /* reset all bits */
224     pic_param->reference_fields.bits.reference_distance_flag        = v->refdist_flag;
225     pic_param->reference_fields.bits.reference_distance             = 0; /* XXX: interlaced frame */
226     pic_param->reference_fields.bits.num_reference_pictures         = 0; /* XXX: interlaced frame */
227     pic_param->reference_fields.bits.reference_field_pic_indicator  = 0; /* XXX: interlaced frame */
228     pic_param->mv_fields.value                                      = 0; /* reset all bits */
229     pic_param->mv_fields.bits.mv_mode                               = vc1_get_MVMODE(v);
230     pic_param->mv_fields.bits.mv_mode2                              = vc1_get_MVMODE2(v);
231     pic_param->mv_fields.bits.mv_table                              = s->mv_table_index;
232     pic_param->mv_fields.bits.two_mv_block_pattern_table            = 0; /* XXX: interlaced frame */
233     pic_param->mv_fields.bits.four_mv_switch                        = 0; /* XXX: interlaced frame */
234     pic_param->mv_fields.bits.four_mv_block_pattern_table           = 0; /* XXX: interlaced frame */
235     pic_param->mv_fields.bits.extended_mv_flag                      = v->extended_mv;
236     pic_param->mv_fields.bits.extended_mv_range                     = v->mvrange;
237     pic_param->mv_fields.bits.extended_dmv_flag                     = v->extended_dmv;
238     pic_param->mv_fields.bits.extended_dmv_range                    = 0; /* XXX: interlaced frame */
239     pic_param->pic_quantizer_fields.value                           = 0; /* reset all bits */
240     pic_param->pic_quantizer_fields.bits.dquant                     = v->dquant;
241     pic_param->pic_quantizer_fields.bits.quantizer                  = v->quantizer_mode;
242     pic_param->pic_quantizer_fields.bits.half_qp                    = v->halfpq;
243     pic_param->pic_quantizer_fields.bits.pic_quantizer_scale        = v->pq;
244     pic_param->pic_quantizer_fields.bits.pic_quantizer_type         = v->pquantizer;
245     pic_param->pic_quantizer_fields.bits.dq_frame                   = v->dquantfrm;
246     pic_param->pic_quantizer_fields.bits.dq_profile                 = v->dqprofile;
247     pic_param->pic_quantizer_fields.bits.dq_sb_edge                 = v->dqprofile == DQPROFILE_SINGLE_EDGE  ? v->dqsbedge : 0;
248     pic_param->pic_quantizer_fields.bits.dq_db_edge                 = v->dqprofile == DQPROFILE_DOUBLE_EDGES ? v->dqsbedge : 0;
249     pic_param->pic_quantizer_fields.bits.dq_binary_level            = v->dqbilevel;
250     pic_param->pic_quantizer_fields.bits.alt_pic_quantizer          = v->altpq;
251     pic_param->transform_fields.value                               = 0; /* reset all bits */
252     pic_param->transform_fields.bits.variable_sized_transform_flag  = v->vstransform;
253     pic_param->transform_fields.bits.mb_level_transform_type_flag   = v->ttmbf;
254     pic_param->transform_fields.bits.frame_level_transform_type     = vc1_get_TTFRM(v);
255     pic_param->transform_fields.bits.transform_ac_codingset_idx1    = v->c_ac_table_index;
256     pic_param->transform_fields.bits.transform_ac_codingset_idx2    = v->y_ac_table_index;
257     pic_param->transform_fields.bits.intra_transform_dc_table       = v->s.dc_table_index;
258
259     switch (s->pict_type) {
260     case AV_PICTURE_TYPE_B:
261         pic_param->backward_reference_picture = ff_vaapi_get_surface_id(&s->next_picture);
262         // fall-through
263     case AV_PICTURE_TYPE_P:
264         pic_param->forward_reference_picture = ff_vaapi_get_surface_id(&s->last_picture);
265         break;
266     }
267
268     if (pic_param->bitplane_present.value) {
269         uint8_t *bitplane;
270         const uint8_t *ff_bp[3];
271         int x, y, n;
272
273         switch (s->pict_type) {
274         case AV_PICTURE_TYPE_P:
275             ff_bp[0] = pic_param->bitplane_present.flags.bp_direct_mb  ? v->direct_mb_plane    : NULL;
276             ff_bp[1] = pic_param->bitplane_present.flags.bp_skip_mb    ? s->mbskip_table       : NULL;
277             ff_bp[2] = pic_param->bitplane_present.flags.bp_mv_type_mb ? v->mv_type_mb_plane   : NULL;
278             break;
279         case AV_PICTURE_TYPE_B:
280             if (!v->bi_type) {
281                 ff_bp[0] = pic_param->bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL;
282                 ff_bp[1] = pic_param->bitplane_present.flags.bp_skip_mb   ? s->mbskip_table    : NULL;
283                 ff_bp[2] = NULL; /* XXX: interlaced frame (FORWARD plane) */
284                 break;
285             }
286             /* fall-through (BI-type) */
287         case AV_PICTURE_TYPE_I:
288             ff_bp[0] = NULL; /* XXX: interlaced frame (FIELDTX plane) */
289             ff_bp[1] = pic_param->bitplane_present.flags.bp_ac_pred    ? v->acpred_plane       : NULL;
290             ff_bp[2] = pic_param->bitplane_present.flags.bp_overflags  ? v->over_flags_plane   : NULL;
291             break;
292         default:
293             ff_bp[0] = NULL;
294             ff_bp[1] = NULL;
295             ff_bp[2] = NULL;
296             break;
297         }
298
299         bitplane = ff_vaapi_alloc_bitplane(vactx, (s->mb_width * s->mb_height + 1) / 2);
300         if (!bitplane)
301             return -1;
302
303         n = 0;
304         for (y = 0; y < s->mb_height; y++)
305             for (x = 0; x < s->mb_width; x++, n++)
306                 vc1_pack_bitplanes(bitplane, n, ff_bp, x, y, s->mb_stride);
307         if (n & 1) /* move last nibble to the high order */
308             bitplane[n/2] <<= 4;
309     }
310     return 0;
311 }
312
313 static int vaapi_vc1_end_frame(AVCodecContext *avctx)
314 {
315     VC1Context * const v = avctx->priv_data;
316
317     return ff_vaapi_common_end_frame(&v->s);
318 }
319
320 static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
321 {
322     VC1Context * const v = avctx->priv_data;
323     MpegEncContext * const s = &v->s;
324     VASliceParameterBufferVC1 *slice_param;
325
326     av_dlog(avctx, "vaapi_vc1_decode_slice(): buffer %p, size %d\n", buffer, size);
327
328     /* Current bit buffer is beyond any marker for VC-1, so skip it */
329     if (avctx->codec_id == CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
330         buffer += 4;
331         size -= 4;
332     }
333
334     /* Fill in VASliceParameterBufferVC1 */
335     slice_param = (VASliceParameterBufferVC1 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
336     if (!slice_param)
337         return -1;
338     slice_param->macroblock_offset       = get_bits_count(&s->gb);
339     slice_param->slice_vertical_position = s->mb_y;
340     return 0;
341 }
342
343 #if CONFIG_WMV3_VAAPI_HWACCEL
344 AVHWAccel ff_wmv3_vaapi_hwaccel = {
345     .name           = "wmv3_vaapi",
346     .type           = AVMEDIA_TYPE_VIDEO,
347     .id             = CODEC_ID_WMV3,
348     .pix_fmt        = PIX_FMT_VAAPI_VLD,
349     .start_frame    = vaapi_vc1_start_frame,
350     .end_frame      = vaapi_vc1_end_frame,
351     .decode_slice   = vaapi_vc1_decode_slice,
352 };
353 #endif
354
355 AVHWAccel ff_vc1_vaapi_hwaccel = {
356     .name           = "vc1_vaapi",
357     .type           = AVMEDIA_TYPE_VIDEO,
358     .id             = CODEC_ID_VC1,
359     .pix_fmt        = PIX_FMT_VAAPI_VLD,
360     .start_frame    = vaapi_vc1_start_frame,
361     .end_frame      = vaapi_vc1_end_frame,
362     .decode_slice   = vaapi_vc1_decode_slice,
363 };