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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / vaapi_vc1.c
CommitLineData
2ba45a60
DM		 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 */
28static 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 */
41static 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 */
52static 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 */
61static 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 */
69static 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 */
79static 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) */
91static 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) */
103static 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) */
112static 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) */
120static 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 */
132static 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
146static 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 = v->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.f);
262 // fall-through
263 case AV_PICTURE_TYPE_P:
264 pic_param->forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
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
313static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
314{
315 VC1Context * const v = avctx->priv_data;
316 MpegEncContext * const s = &v->s;
317 VASliceParameterBufferVC1 *slice_param;
318
319 av_dlog(avctx, "vaapi_vc1_decode_slice(): buffer %p, size %d\n", buffer, size);
320
321 /* Current bit buffer is beyond any marker for VC-1, so skip it */
322 if (avctx->codec_id == AV_CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
323 buffer += 4;
324 size -= 4;
325 }
326
327 /* Fill in VASliceParameterBufferVC1 */
328 slice_param = (VASliceParameterBufferVC1 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
329 if (!slice_param)
330 return -1;
331 slice_param->macroblock_offset = get_bits_count(&s->gb);
332 slice_param->slice_vertical_position = s->mb_y;
333 return 0;
334}
335
336#if CONFIG_WMV3_VAAPI_HWACCEL
337AVHWAccel ff_wmv3_vaapi_hwaccel = {
338 .name = "wmv3_vaapi",
339 .type = AVMEDIA_TYPE_VIDEO,
340 .id = AV_CODEC_ID_WMV3,
341 .pix_fmt = AV_PIX_FMT_VAAPI_VLD,
342 .start_frame = vaapi_vc1_start_frame,
343 .end_frame = ff_vaapi_mpeg_end_frame,
344 .decode_slice = vaapi_vc1_decode_slice,
345};
346#endif
347
348AVHWAccel ff_vc1_vaapi_hwaccel = {
349 .name = "vc1_vaapi",
350 .type = AVMEDIA_TYPE_VIDEO,
351 .id = AV_CODEC_ID_VC1,
352 .pix_fmt = AV_PIX_FMT_VAAPI_VLD,
353 .start_frame = vaapi_vc1_start_frame,
354 .end_frame = ff_vaapi_mpeg_end_frame,
355 .decode_slice = vaapi_vc1_decode_slice,
356};
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