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1 | /* | ||
2 | * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> | ||
3 | * | ||
4 | * This file is part of FFmpeg. | ||
5 | * | ||
6 | * FFmpeg is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU Lesser General Public | ||
8 | * License as published by the Free Software Foundation; either | ||
9 | * version 2.1 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * FFmpeg is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * Lesser General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU Lesser General Public | ||
17 | * License along with FFmpeg; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file | ||
23 | * VP5 and VP6 compatible video decoder (common features) | ||
24 | */ | ||
25 | |||
26 | #include "libavutil/mem.h" | ||
27 | #include "avcodec.h" | ||
28 | #include "bytestream.h" | ||
29 | #include "decode.h" | ||
30 | #include "h264chroma.h" | ||
31 | #include "vp56.h" | ||
32 | #include "vp56data.h" | ||
33 | #include "vpx_rac.h" | ||
34 | |||
35 | |||
36 | 961 | void ff_vp56_init_dequant(VP56Context *s, int quantizer) | |
37 | { | ||
38 |
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961 | if (s->quantizer != quantizer) |
39 | 408 | ff_vp3dsp_set_bounding_values(s->bounding_values_array, ff_vp56_filter_threshold[quantizer]); | |
40 | 961 | s->quantizer = quantizer; | |
41 | 961 | s->dequant_dc = ff_vp56_dc_dequant[quantizer] << 2; | |
42 | 961 | s->dequant_ac = ff_vp56_ac_dequant[quantizer] << 2; | |
43 | 961 | } | |
44 | |||
45 | 238244 | static int vp56_get_vectors_predictors(VP56Context *s, int row, int col, | |
46 | VP56Frame ref_frame) | ||
47 | { | ||
48 | 238244 | int nb_pred = 0; | |
49 | 238244 | VP56mv vect[2] = {{0,0}, {0,0}}; | |
50 | int pos, offset; | ||
51 | VP56mv mvp; | ||
52 | |||
53 |
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2439515 | for (pos=0; pos<12; pos++) { |
54 | 2278280 | mvp.x = col + ff_vp56_candidate_predictor_pos[pos][0]; | |
55 | 2278280 | mvp.y = row + ff_vp56_candidate_predictor_pos[pos][1]; | |
56 |
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2278280 | if (mvp.x < 0 || mvp.x >= s->mb_width || |
57 |
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2130905 | mvp.y < 0 || mvp.y >= s->mb_height) |
58 | 362852 | continue; | |
59 | 1915428 | offset = mvp.x + s->mb_width*mvp.y; | |
60 | |||
61 |
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1915428 | if (ff_vp56_reference_frame[s->macroblocks[offset].type] != ref_frame) |
62 | 331678 | continue; | |
63 |
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1583750 | if ((s->macroblocks[offset].mv.x == vect[0].x && |
64 |
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1293327 | s->macroblocks[offset].mv.y == vect[0].y) || |
65 |
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366433 | (s->macroblocks[offset].mv.x == 0 && |
66 |
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207800 | s->macroblocks[offset].mv.y == 0)) |
67 | 1394381 | continue; | |
68 | |||
69 | 189369 | vect[nb_pred++] = s->macroblocks[offset].mv; | |
70 |
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189369 | if (nb_pred > 1) { |
71 | 77009 | nb_pred = -1; | |
72 | 77009 | break; | |
73 | } | ||
74 | 112360 | s->vector_candidate_pos = pos; | |
75 | } | ||
76 | |||
77 | 238244 | s->vector_candidate[0] = vect[0]; | |
78 | 238244 | s->vector_candidate[1] = vect[1]; | |
79 | |||
80 | 238244 | return nb_pred+1; | |
81 | } | ||
82 | |||
83 | 917 | static void vp56_parse_mb_type_models(VP56Context *s) | |
84 | { | ||
85 | 917 | VPXRangeCoder *c = &s->c; | |
86 | 917 | VP56Model *model = s->modelp; | |
87 | int i, ctx, type; | ||
88 | |||
89 |
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3668 | for (ctx=0; ctx<3; ctx++) { |
90 |
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2751 | if (vpx_rac_get_prob_branchy(c, 174)) { |
91 | 730 | int idx = vp56_rac_gets(c, 4); | |
92 | 730 | memcpy(model->mb_types_stats[ctx], | |
93 | 730 | ff_vp56_pre_def_mb_type_stats[idx][ctx], | |
94 | sizeof(model->mb_types_stats[ctx])); | ||
95 | } | ||
96 |
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2751 | if (vpx_rac_get_prob_branchy(c, 254)) { |
97 |
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1287 | for (type=0; type<10; type++) { |
98 |
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3510 | for(i=0; i<2; i++) { |
99 |
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2340 | if (vpx_rac_get_prob_branchy(c, 205)) { |
100 | 915 | int delta, sign = vpx_rac_get(c); | |
101 | |||
102 | 915 | delta = vp56_rac_get_tree(c, ff_vp56_pmbtm_tree, | |
103 | ff_vp56_mb_type_model_model); | ||
104 |
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915 | if (!delta) |
105 | 139 | delta = 4 * vp56_rac_gets(c, 7); | |
106 | 915 | model->mb_types_stats[ctx][type][i] += (delta ^ -sign) + sign; | |
107 | } | ||
108 | } | ||
109 | } | ||
110 | } | ||
111 | } | ||
112 | |||
113 | /* compute MB type probability tables based on previous MB type */ | ||
114 |
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3668 | for (ctx=0; ctx<3; ctx++) { |
115 | int p[10]; | ||
116 | |||
117 |
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30261 | for (type=0; type<10; type++) |
118 | 27510 | p[type] = 100 * model->mb_types_stats[ctx][type][1]; | |
119 | |||
120 |
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30261 | for (type=0; type<10; type++) { |
121 | int p02, p34, p0234, p17, p56, p89, p5689, p156789; | ||
122 | |||
123 | /* conservative MB type probability */ | ||
124 | 27510 | model->mb_type[ctx][type][0] = 255 - (255 * model->mb_types_stats[ctx][type][0]) / (1 + model->mb_types_stats[ctx][type][0] + model->mb_types_stats[ctx][type][1]); | |
125 | |||
126 | 27510 | p[type] = 0; /* same MB type => weight is null */ | |
127 | |||
128 | /* binary tree parsing probabilities */ | ||
129 | 27510 | p02 = p[0] + p[2]; | |
130 | 27510 | p34 = p[3] + p[4]; | |
131 | 27510 | p0234 = p02 + p34; | |
132 | 27510 | p17 = p[1] + p[7]; | |
133 | 27510 | p56 = p[5] + p[6]; | |
134 | 27510 | p89 = p[8] + p[9]; | |
135 | 27510 | p5689 = p56 + p89; | |
136 | 27510 | p156789 = p17 + p5689; | |
137 | |||
138 | 27510 | model->mb_type[ctx][type][1] = 1 + 255 * p0234/(1+p0234+p156789); | |
139 | 27510 | model->mb_type[ctx][type][2] = 1 + 255 * p02 / (1+p0234); | |
140 | 27510 | model->mb_type[ctx][type][3] = 1 + 255 * p17 / (1+p156789); | |
141 | 27510 | model->mb_type[ctx][type][4] = 1 + 255 * p[0] / (1+p02); | |
142 | 27510 | model->mb_type[ctx][type][5] = 1 + 255 * p[3] / (1+p34); | |
143 | 27510 | model->mb_type[ctx][type][6] = 1 + 255 * p[1] / (1+p17); | |
144 | 27510 | model->mb_type[ctx][type][7] = 1 + 255 * p56 / (1+p5689); | |
145 | 27510 | model->mb_type[ctx][type][8] = 1 + 255 * p[5] / (1+p56); | |
146 | 27510 | model->mb_type[ctx][type][9] = 1 + 255 * p[8] / (1+p89); | |
147 | |||
148 | /* restore initial value */ | ||
149 | 27510 | p[type] = 100 * model->mb_types_stats[ctx][type][1]; | |
150 | } | ||
151 | } | ||
152 | 917 | } | |
153 | |||
154 | 235607 | static VP56mb vp56_parse_mb_type(VP56Context *s, | |
155 | VP56mb prev_type, int ctx) | ||
156 | { | ||
157 | 235607 | uint8_t *mb_type_model = s->modelp->mb_type[ctx][prev_type]; | |
158 | 235607 | VPXRangeCoder *c = &s->c; | |
159 | |||
160 |
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235607 | if (vpx_rac_get_prob_branchy(c, mb_type_model[0])) |
161 | 178921 | return prev_type; | |
162 | else | ||
163 | 56686 | return vp56_rac_get_tree(c, ff_vp56_pmbt_tree, mb_type_model); | |
164 | } | ||
165 | |||
166 | 10514 | static void vp56_decode_4mv(VP56Context *s, int row, int col) | |
167 | { | ||
168 | 10514 | VP56mv mv = {0,0}; | |
169 | int type[4]; | ||
170 | int b; | ||
171 | |||
172 | /* parse each block type */ | ||
173 |
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52570 | for (b=0; b<4; b++) { |
174 | 42056 | type[b] = vp56_rac_gets(&s->c, 2); | |
175 |
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42056 | if (type[b]) |
176 | 33494 | type[b]++; /* only returns 0, 2, 3 or 4 (all INTER_PF) */ | |
177 | } | ||
178 | |||
179 | /* get vectors */ | ||
180 |
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52570 | for (b=0; b<4; b++) { |
181 |
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42056 | switch (type[b]) { |
182 | 8562 | case VP56_MB_INTER_NOVEC_PF: | |
183 | 8562 | s->mv[b] = (VP56mv) {0,0}; | |
184 | 8562 | break; | |
185 | 12581 | case VP56_MB_INTER_DELTA_PF: | |
186 | 12581 | s->parse_vector_adjustment(s, &s->mv[b]); | |
187 | 12581 | break; | |
188 | 12473 | case VP56_MB_INTER_V1_PF: | |
189 | 12473 | s->mv[b] = s->vector_candidate[0]; | |
190 | 12473 | break; | |
191 | 8440 | case VP56_MB_INTER_V2_PF: | |
192 | 8440 | s->mv[b] = s->vector_candidate[1]; | |
193 | 8440 | break; | |
194 | } | ||
195 | 42056 | mv.x += s->mv[b].x; | |
196 | 42056 | mv.y += s->mv[b].y; | |
197 | } | ||
198 | |||
199 | /* this is the one selected for the whole MB for prediction */ | ||
200 | 10514 | s->macroblocks[row * s->mb_width + col].mv = s->mv[3]; | |
201 | |||
202 | /* chroma vectors are average luma vectors */ | ||
203 |
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10514 | s->mv[4].x = s->mv[5].x = RSHIFT(mv.x,2); |
204 |
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10514 | s->mv[4].y = s->mv[5].y = RSHIFT(mv.y,2); |
205 | 10514 | } | |
206 | |||
207 | 235607 | static VP56mb vp56_decode_mv(VP56Context *s, int row, int col) | |
208 | { | ||
209 | 235607 | VP56mv *mv, vect = {0,0}; | |
210 | int ctx, b; | ||
211 | |||
212 | 235607 | ctx = vp56_get_vectors_predictors(s, row, col, VP56_FRAME_PREVIOUS); | |
213 | 235607 | s->mb_type = vp56_parse_mb_type(s, s->mb_type, ctx); | |
214 | 235607 | s->macroblocks[row * s->mb_width + col].type = s->mb_type; | |
215 | |||
216 |
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235607 | switch (s->mb_type) { |
217 | 36890 | case VP56_MB_INTER_V1_PF: | |
218 | 36890 | mv = &s->vector_candidate[0]; | |
219 | 36890 | break; | |
220 | |||
221 | 11522 | case VP56_MB_INTER_V2_PF: | |
222 | 11522 | mv = &s->vector_candidate[1]; | |
223 | 11522 | break; | |
224 | |||
225 | 1037 | case VP56_MB_INTER_V1_GF: | |
226 | 1037 | vp56_get_vectors_predictors(s, row, col, VP56_FRAME_GOLDEN); | |
227 | 1037 | mv = &s->vector_candidate[0]; | |
228 | 1037 | break; | |
229 | |||
230 | 160 | case VP56_MB_INTER_V2_GF: | |
231 | 160 | vp56_get_vectors_predictors(s, row, col, VP56_FRAME_GOLDEN); | |
232 | 160 | mv = &s->vector_candidate[1]; | |
233 | 160 | break; | |
234 | |||
235 | 14427 | case VP56_MB_INTER_DELTA_PF: | |
236 | 14427 | s->parse_vector_adjustment(s, &vect); | |
237 | 14427 | mv = &vect; | |
238 | 14427 | break; | |
239 | |||
240 | 1440 | case VP56_MB_INTER_DELTA_GF: | |
241 | 1440 | vp56_get_vectors_predictors(s, row, col, VP56_FRAME_GOLDEN); | |
242 | 1440 | s->parse_vector_adjustment(s, &vect); | |
243 | 1440 | mv = &vect; | |
244 | 1440 | break; | |
245 | |||
246 | 10514 | case VP56_MB_INTER_4V: | |
247 | 10514 | vp56_decode_4mv(s, row, col); | |
248 | 10514 | return s->mb_type; | |
249 | |||
250 | 159617 | default: | |
251 | 159617 | mv = &vect; | |
252 | 159617 | break; | |
253 | } | ||
254 | |||
255 | 225093 | s->macroblocks[row*s->mb_width + col].mv = *mv; | |
256 | |||
257 | /* same vector for all blocks */ | ||
258 |
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1575651 | for (b=0; b<6; b++) |
259 | 1350558 | s->mv[b] = *mv; | |
260 | |||
261 | 225093 | return s->mb_type; | |
262 | } | ||
263 | |||
264 | 363 | static VP56mb vp56_conceal_mv(VP56Context *s, int row, int col) | |
265 | { | ||
266 | 363 | VP56mv *mv, vect = {0,0}; | |
267 | int b; | ||
268 | |||
269 | 363 | s->mb_type = VP56_MB_INTER_NOVEC_PF; | |
270 | 363 | s->macroblocks[row * s->mb_width + col].type = s->mb_type; | |
271 | |||
272 | 363 | mv = &vect; | |
273 | |||
274 | 363 | s->macroblocks[row*s->mb_width + col].mv = *mv; | |
275 | |||
276 | /* same vector for all blocks */ | ||
277 |
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2541 | for (b=0; b<6; b++) |
278 | 2178 | s->mv[b] = *mv; | |
279 | |||
280 | 363 | return s->mb_type; | |
281 | } | ||
282 | |||
283 | 245780 | static void vp56_add_predictors_dc(VP56Context *s, VP56Frame ref_frame) | |
284 | { | ||
285 | 245780 | int idx = s->idct_scantable[0]; | |
286 | int b; | ||
287 | |||
288 |
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1720460 | for (b=0; b<6; b++) { |
289 | 1474680 | VP56RefDc *ab = &s->above_blocks[s->above_block_idx[b]]; | |
290 | 1474680 | VP56RefDc *lb = &s->left_block[ff_vp56_b6to4[b]]; | |
291 | 1474680 | int count = 0; | |
292 | 1474680 | int dc = 0; | |
293 | int i; | ||
294 | |||
295 |
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1474680 | if (ref_frame == lb->ref_frame) { |
296 | 1389024 | dc += lb->dc_coeff; | |
297 | 1389024 | count++; | |
298 | } | ||
299 |
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1474680 | if (ref_frame == ab->ref_frame) { |
300 | 1357452 | dc += ab->dc_coeff; | |
301 | 1357452 | count++; | |
302 | } | ||
303 |
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1474680 | if (s->avctx->codec->id == AV_CODEC_ID_VP5) |
304 |
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305 |
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1802112 | if (count < 2 && ref_frame == ab[-1+2*i].ref_frame) { |
306 | 72112 | dc += ab[-1+2*i].dc_coeff; | |
307 | 72112 | count++; | |
308 | } | ||
309 |
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1474680 | if (count == 0) |
310 | 18295 | dc = s->prev_dc[ff_vp56_b2p[b]][ref_frame]; | |
311 |
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1456385 | else if (count == 2) |
312 | 1362203 | dc /= 2; | |
313 | |||
314 | 1474680 | s->block_coeff[b][idx] += dc; | |
315 | 1474680 | s->prev_dc[ff_vp56_b2p[b]][ref_frame] = s->block_coeff[b][idx]; | |
316 | 1474680 | ab->dc_coeff = s->block_coeff[b][idx]; | |
317 | 1474680 | ab->ref_frame = ref_frame; | |
318 | 1474680 | lb->dc_coeff = s->block_coeff[b][idx]; | |
319 | 1474680 | lb->ref_frame = ref_frame; | |
320 | 1474680 | s->block_coeff[b][idx] *= s->dequant_dc; | |
321 | } | ||
322 | 245780 | } | |
323 | |||
324 | 423352 | static void vp56_deblock_filter(VP56Context *s, uint8_t *yuv, | |
325 | ptrdiff_t stride, int dx, int dy) | ||
326 | { | ||
327 |
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423352 | if (s->avctx->codec->id == AV_CODEC_ID_VP5) { |
328 | 249618 | int t = ff_vp56_filter_threshold[s->quantizer]; | |
329 |
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249618 | if (dx) s->vp56dsp.edge_filter_hor(yuv + 10-dx , stride, t); |
330 |
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249618 | if (dy) s->vp56dsp.edge_filter_ver(yuv + stride*(10-dy), stride, t); |
331 | } else { | ||
332 | 173734 | int * bounding_values = s->bounding_values_array + 127; | |
333 |
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173734 | if (dx) |
334 | 66268 | ff_vp3dsp_h_loop_filter_12(yuv + 10-dx, stride, bounding_values); | |
335 |
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173734 | if (dy) |
336 | 63282 | ff_vp3dsp_v_loop_filter_12(yuv + stride*(10-dy), stride, bounding_values); | |
337 | } | ||
338 | 423352 | } | |
339 | |||
340 | 443626 | static void vp56_mc(VP56Context *s, int b, int plane, uint8_t *src, | |
341 | ptrdiff_t stride, int x, int y) | ||
342 | { | ||
343 | 443626 | uint8_t *dst = s->frames[VP56_FRAME_CURRENT]->data[plane] + s->block_offset[b]; | |
344 | uint8_t *src_block; | ||
345 | int src_offset; | ||
346 | 443626 | int overlap_offset = 0; | |
347 | 443626 | int mask = s->vp56_coord_div[b] - 1; | |
348 | 443626 | int deblock_filtering = s->deblock_filtering; | |
349 | int dx; | ||
350 | int dy; | ||
351 | |||
352 |
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443626 | if (s->avctx->skip_loop_filter >= AVDISCARD_ALL || |
353 |
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443626 | (s->avctx->skip_loop_filter >= AVDISCARD_NONKEY |
354 | ✗ | && !(s->frames[VP56_FRAME_CURRENT]->flags & AV_FRAME_FLAG_KEY))) | |
355 | ✗ | deblock_filtering = 0; | |
356 | |||
357 | 443626 | dx = s->mv[b].x / s->vp56_coord_div[b]; | |
358 | 443626 | dy = s->mv[b].y / s->vp56_coord_div[b]; | |
359 | |||
360 |
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443626 | if (b >= 4) { |
361 | 139670 | x /= 2; | |
362 | 139670 | y /= 2; | |
363 | } | ||
364 | 443626 | x += dx - 2; | |
365 | 443626 | y += dy - 2; | |
366 | |||
367 |
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443626 | if (x<0 || x+12>=s->plane_width[plane] || |
368 |
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413182 | y<0 || y+12>=s->plane_height[plane]) { |
369 | 49860 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer, | |
370 | 49860 | src + s->block_offset[b] + (dy-2)*stride + (dx-2), | |
371 | stride, stride, | ||
372 | 12, 12, x, y, | ||
373 | s->plane_width[plane], | ||
374 | s->plane_height[plane]); | ||
375 | 49860 | src_block = s->edge_emu_buffer; | |
376 | 49860 | src_offset = 2 + 2*stride; | |
377 |
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393766 | } else if (deblock_filtering) { |
378 | /* only need a 12x12 block, but there is no such dsp function, */ | ||
379 | /* so copy a 16x12 block */ | ||
380 | 375310 | s->hdsp.put_pixels_tab[0][0](s->edge_emu_buffer, | |
381 | 375310 | src + s->block_offset[b] + (dy-2)*stride + (dx-2), | |
382 | stride, 12); | ||
383 | 375310 | src_block = s->edge_emu_buffer; | |
384 | 375310 | src_offset = 2 + 2*stride; | |
385 | } else { | ||
386 | 18456 | src_block = src; | |
387 | 18456 | src_offset = s->block_offset[b] + dy*stride + dx; | |
388 | } | ||
389 | |||
390 |
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443626 | if (deblock_filtering) |
391 | 423352 | vp56_deblock_filter(s, src_block, stride, dx&7, dy&7); | |
392 | |||
393 |
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443626 | if (s->mv[b].x & mask) |
394 |
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282743 | overlap_offset += (s->mv[b].x > 0) ? 1 : -1; |
395 |
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443626 | if (s->mv[b].y & mask) |
396 |
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277885 | overlap_offset += (s->mv[b].y > 0) ? stride : -stride; |
397 | |||
398 |
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443626 | if (overlap_offset) { |
399 |
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387482 | if (s->filter) |
400 | 171363 | s->filter(s, dst, src_block, src_offset, src_offset+overlap_offset, | |
401 | stride, s->mv[b], mask, s->filter_selection, b<4); | ||
402 | else | ||
403 | 216119 | s->vp3dsp.put_no_rnd_pixels_l2(dst, src_block+src_offset, | |
404 | 216119 | src_block+src_offset+overlap_offset, | |
405 | stride, 8); | ||
406 | } else { | ||
407 | 56144 | s->hdsp.put_pixels_tab[1][0](dst, src_block+src_offset, stride, 8); | |
408 | } | ||
409 | 443626 | } | |
410 | |||
411 | 197664 | static void vp56_idct_put(VP56Context *s, uint8_t * dest, ptrdiff_t stride, int16_t *block, int selector) | |
412 | { | ||
413 |
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197664 | if (selector > 10 || selector == 1) |
414 | 162720 | s->vp3dsp.idct_put(dest, stride, block); | |
415 | else | ||
416 | 34944 | ff_vp3dsp_idct10_put(dest, stride, block); | |
417 | 197664 | } | |
418 | |||
419 | 1234608 | static void vp56_idct_add(VP56Context *s, uint8_t * dest, ptrdiff_t stride, int16_t *block, int selector) | |
420 | { | ||
421 |
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1234608 | if (selector > 10) |
422 | 865309 | s->vp3dsp.idct_add(dest, stride, block); | |
423 |
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369299 | else if (selector > 1) |
424 | 369299 | ff_vp3dsp_idct10_add(dest, stride, block); | |
425 | else | ||
426 | ✗ | s->vp3dsp.idct_dc_add(dest, stride, block); | |
427 | 1234608 | } | |
428 | |||
429 | 245780 | static av_always_inline void vp56_render_mb(VP56Context *s, int row, int col, int is_alpha, VP56mb mb_type) | |
430 | { | ||
431 | int b, ab, b_max, plane, off; | ||
432 | AVFrame *frame_current, *frame_ref; | ||
433 | 245780 | VP56Frame ref_frame = ff_vp56_reference_frame[mb_type]; | |
434 | |||
435 | 245780 | vp56_add_predictors_dc(s, ref_frame); | |
436 | |||
437 | 245780 | frame_current = s->frames[VP56_FRAME_CURRENT]; | |
438 | 245780 | frame_ref = s->frames[ref_frame]; | |
439 |
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245780 | if (mb_type != VP56_MB_INTRA && !frame_ref->data[0]) |
440 | ✗ | return; | |
441 | |||
442 | 245780 | ab = 6*is_alpha; | |
443 | 245780 | b_max = 6 - 2*is_alpha; | |
444 | |||
445 |
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245780 | switch (mb_type) { |
446 | 33512 | case VP56_MB_INTRA: | |
447 |
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231176 | for (b=0; b<b_max; b++) { |
448 | 197664 | plane = ff_vp56_b2p[b+ab]; | |
449 | 197664 | vp56_idct_put(s, frame_current->data[plane] + s->block_offset[b], | |
450 | 197664 | s->stride[plane], s->block_coeff[b], s->idct_selector[b]); | |
451 | } | ||
452 | 33512 | break; | |
453 | |||
454 | 136279 | case VP56_MB_INTER_NOVEC_PF: | |
455 | case VP56_MB_INTER_NOVEC_GF: | ||
456 |
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927261 | for (b=0; b<b_max; b++) { |
457 | 790982 | plane = ff_vp56_b2p[b+ab]; | |
458 | 790982 | off = s->block_offset[b]; | |
459 | 790982 | s->hdsp.put_pixels_tab[1][0](frame_current->data[plane] + off, | |
460 | 790982 | frame_ref->data[plane] + off, | |
461 | s->stride[plane], 8); | ||
462 | 790982 | vp56_idct_add(s, frame_current->data[plane] + off, | |
463 | 790982 | s->stride[plane], s->block_coeff[b], s->idct_selector[b]); | |
464 | } | ||
465 | 136279 | break; | |
466 | |||
467 | 75989 | case VP56_MB_INTER_DELTA_PF: | |
468 | case VP56_MB_INTER_V1_PF: | ||
469 | case VP56_MB_INTER_V2_PF: | ||
470 | case VP56_MB_INTER_DELTA_GF: | ||
471 | case VP56_MB_INTER_4V: | ||
472 | case VP56_MB_INTER_V1_GF: | ||
473 | case VP56_MB_INTER_V2_GF: | ||
474 |
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519615 | for (b=0; b<b_max; b++) { |
475 |
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443626 | int x_off = b==1 || b==3 ? 8 : 0; |
476 |
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443626 | int y_off = b==2 || b==3 ? 8 : 0; |
477 | 443626 | plane = ff_vp56_b2p[b+ab]; | |
478 | 443626 | vp56_mc(s, b, plane, frame_ref->data[plane], s->stride[plane], | |
479 | 443626 | 16*col+x_off, 16*row+y_off); | |
480 | 443626 | vp56_idct_add(s, frame_current->data[plane] + s->block_offset[b], | |
481 | 443626 | s->stride[plane], s->block_coeff[b], s->idct_selector[b]); | |
482 | } | ||
483 | 75989 | break; | |
484 | } | ||
485 | |||
486 |
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245780 | if (is_alpha) { |
487 | 21204 | s->block_coeff[4][0] = 0; | |
488 | 21204 | s->block_coeff[5][0] = 0; | |
489 | } | ||
490 | } | ||
491 | |||
492 | 245418 | static int vp56_decode_mb(VP56Context *s, int row, int col, int is_alpha) | |
493 | { | ||
494 | VP56mb mb_type; | ||
495 | int ret; | ||
496 | |||
497 |
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245418 | if (s->frames[VP56_FRAME_CURRENT]->flags & AV_FRAME_FLAG_KEY) |
498 | 9811 | mb_type = VP56_MB_INTRA; | |
499 | else | ||
500 | 235607 | mb_type = vp56_decode_mv(s, row, col); | |
501 | |||
502 | 245418 | ret = s->parse_coeff(s); | |
503 |
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245418 | if (ret < 0) |
504 | 1 | return ret; | |
505 | |||
506 | 245417 | vp56_render_mb(s, row, col, is_alpha, mb_type); | |
507 | |||
508 | 245417 | return 0; | |
509 | } | ||
510 | |||
511 | 363 | static int vp56_conceal_mb(VP56Context *s, int row, int col, int is_alpha) | |
512 | { | ||
513 | VP56mb mb_type; | ||
514 | |||
515 |
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363 | if (s->frames[VP56_FRAME_CURRENT]->flags & AV_FRAME_FLAG_KEY) |
516 | ✗ | mb_type = VP56_MB_INTRA; | |
517 | else | ||
518 | 363 | mb_type = vp56_conceal_mv(s, row, col); | |
519 | |||
520 | 363 | vp56_render_mb(s, row, col, is_alpha, mb_type); | |
521 | |||
522 | 363 | return 0; | |
523 | } | ||
524 | |||
525 | 14 | static int vp56_size_changed(VP56Context *s) | |
526 | { | ||
527 | 14 | AVCodecContext *avctx = s->avctx; | |
528 | 14 | int stride = s->frames[VP56_FRAME_CURRENT]->linesize[0]; | |
529 | int i; | ||
530 | |||
531 | 14 | s->plane_width[0] = s->plane_width[3] = avctx->coded_width; | |
532 | 14 | s->plane_width[1] = s->plane_width[2] = avctx->coded_width/2; | |
533 | 14 | s->plane_height[0] = s->plane_height[3] = avctx->coded_height; | |
534 | 14 | s->plane_height[1] = s->plane_height[2] = avctx->coded_height/2; | |
535 | |||
536 | 14 | s->have_undamaged_frame = 0; | |
537 | |||
538 |
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70 | for (i=0; i<4; i++) |
539 | 56 | s->stride[i] = s->flip * s->frames[VP56_FRAME_CURRENT]->linesize[i]; | |
540 | |||
541 | 14 | s->mb_width = (avctx->coded_width +15) / 16; | |
542 | 14 | s->mb_height = (avctx->coded_height+15) / 16; | |
543 | |||
544 |
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14 | if (s->mb_width > 1000 || s->mb_height > 1000) { |
545 | ✗ | ff_set_dimensions(avctx, 0, 0); | |
546 | ✗ | av_log(avctx, AV_LOG_ERROR, "picture too big\n"); | |
547 | ✗ | return AVERROR_INVALIDDATA; | |
548 | } | ||
549 | |||
550 | 14 | av_reallocp_array(&s->above_blocks, 4*s->mb_width+6, | |
551 | sizeof(*s->above_blocks)); | ||
552 | 14 | av_reallocp_array(&s->macroblocks, s->mb_width*s->mb_height, | |
553 | sizeof(*s->macroblocks)); | ||
554 | 14 | av_free(s->edge_emu_buffer_alloc); | |
555 | 14 | s->edge_emu_buffer_alloc = av_malloc(16*stride); | |
556 | 14 | s->edge_emu_buffer = s->edge_emu_buffer_alloc; | |
557 |
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14 | if (!s->above_blocks || !s->macroblocks || !s->edge_emu_buffer_alloc) |
558 | ✗ | return AVERROR(ENOMEM); | |
559 |
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14 | if (s->flip < 0) |
560 | 8 | s->edge_emu_buffer += 15 * stride; | |
561 | |||
562 |
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14 | if (s->alpha_context) |
563 | 2 | return vp56_size_changed(s->alpha_context); | |
564 | |||
565 | 12 | return 0; | |
566 | } | ||
567 | |||
568 | static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *, int, int); | ||
569 | |||
570 | 868 | int ff_vp56_decode_frame(AVCodecContext *avctx, AVFrame *rframe, | |
571 | int *got_frame, AVPacket *avpkt) | ||
572 | { | ||
573 | 868 | const uint8_t *buf = avpkt->data; | |
574 | 868 | VP56Context *s = avctx->priv_data; | |
575 | 868 | AVFrame *const p = s->frames[VP56_FRAME_CURRENT]; | |
576 | 868 | int remaining_buf_size = avpkt->size; | |
577 | 868 | int alpha_offset = remaining_buf_size; | |
578 | int i, res; | ||
579 | int ret; | ||
580 | |||
581 |
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868 | if (s->has_alpha) { |
582 |
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186 | if (remaining_buf_size < 3) |
583 | ✗ | return AVERROR_INVALIDDATA; | |
584 | 186 | alpha_offset = bytestream_get_be24(&buf); | |
585 | 186 | remaining_buf_size -= 3; | |
586 |
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186 | if (remaining_buf_size < alpha_offset) |
587 | ✗ | return AVERROR_INVALIDDATA; | |
588 | } | ||
589 | |||
590 | 868 | res = s->parse_header(s, buf, alpha_offset); | |
591 |
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868 | if (res < 0) |
592 | ✗ | return res; | |
593 | |||
594 |
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868 | if (res == VP56_SIZE_CHANGE) { |
595 |
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60 | for (i = 0; i < 4; i++) { |
596 | 48 | av_frame_unref(s->frames[i]); | |
597 |
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48 | if (s->alpha_context) |
598 | 8 | av_frame_unref(s->alpha_context->frames[i]); | |
599 | } | ||
600 | 12 | s->frames[VP56_FRAME_CURRENT]->flags |= AV_FRAME_FLAG_KEY; //FIXME | |
601 | } | ||
602 | |||
603 | 868 | ret = ff_get_buffer(avctx, p, AV_GET_BUFFER_FLAG_REF); | |
604 |
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868 | if (ret < 0) { |
605 | ✗ | if (res == VP56_SIZE_CHANGE) | |
606 | ✗ | ff_set_dimensions(avctx, 0, 0); | |
607 | ✗ | return ret; | |
608 | } | ||
609 | |||
610 |
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868 | if (avctx->pix_fmt == AV_PIX_FMT_YUVA420P) { |
611 |
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93 | if ((ret = av_frame_replace(s->alpha_context->frames[VP56_FRAME_CURRENT], p)) < 0) { |
612 | ✗ | av_frame_unref(p); | |
613 | ✗ | if (res == VP56_SIZE_CHANGE) | |
614 | ✗ | ff_set_dimensions(avctx, 0, 0); | |
615 | ✗ | return ret; | |
616 | } | ||
617 | } | ||
618 | |||
619 |
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868 | if (res == VP56_SIZE_CHANGE) { |
620 |
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12 | if (vp56_size_changed(s)) { |
621 | ✗ | av_frame_unref(p); | |
622 | ✗ | return AVERROR_INVALIDDATA; | |
623 | } | ||
624 | } | ||
625 | |||
626 |
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868 | if (avctx->pix_fmt == AV_PIX_FMT_YUVA420P) { |
627 | 93 | int bak_w = avctx->width; | |
628 | 93 | int bak_h = avctx->height; | |
629 | 93 | int bak_cw = avctx->coded_width; | |
630 | 93 | int bak_ch = avctx->coded_height; | |
631 | 93 | buf += alpha_offset; | |
632 | 93 | remaining_buf_size -= alpha_offset; | |
633 | |||
634 | 93 | res = s->alpha_context->parse_header(s->alpha_context, buf, remaining_buf_size); | |
635 |
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93 | if (res != 0) { |
636 | ✗ | if(res==VP56_SIZE_CHANGE) { | |
637 | ✗ | av_log(avctx, AV_LOG_ERROR, "Alpha reconfiguration\n"); | |
638 | ✗ | avctx->width = bak_w; | |
639 | ✗ | avctx->height = bak_h; | |
640 | ✗ | avctx->coded_width = bak_cw; | |
641 | ✗ | avctx->coded_height = bak_ch; | |
642 | } | ||
643 | ✗ | av_frame_unref(p); | |
644 | ✗ | return AVERROR_INVALIDDATA; | |
645 | } | ||
646 | } | ||
647 | |||
648 | 868 | s->discard_frame = 0; | |
649 |
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868 | avctx->execute2(avctx, ff_vp56_decode_mbs, 0, 0, (avctx->pix_fmt == AV_PIX_FMT_YUVA420P) + 1); |
650 | |||
651 |
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868 | if (s->discard_frame) |
652 | ✗ | return AVERROR_INVALIDDATA; | |
653 | |||
654 |
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868 | if ((res = av_frame_ref(rframe, p)) < 0) |
655 | ✗ | return res; | |
656 | 868 | *got_frame = 1; | |
657 | |||
658 | 868 | return avpkt->size; | |
659 | } | ||
660 | |||
661 | 961 | static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *data, | |
662 | int jobnr, int threadnr) | ||
663 | { | ||
664 | 961 | VP56Context *s0 = avctx->priv_data; | |
665 | 961 | int is_alpha = (jobnr == 1); | |
666 |
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961 | VP56Context *s = is_alpha ? s0->alpha_context : s0; |
667 | 961 | AVFrame *const p = s->frames[VP56_FRAME_CURRENT]; | |
668 | 961 | int mb_row, mb_col, mb_row_flip, mb_offset = 0; | |
669 | int block, y, uv; | ||
670 | ptrdiff_t stride_y, stride_uv; | ||
671 | int res; | ||
672 | 961 | int damaged = 0; | |
673 | |||
674 |
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961 | if (p->flags & AV_FRAME_FLAG_KEY) { |
675 | 44 | p->pict_type = AV_PICTURE_TYPE_I; | |
676 | 44 | s->default_models_init(s); | |
677 |
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9855 | for (block=0; block<s->mb_height*s->mb_width; block++) |
678 | 9811 | s->macroblocks[block].type = VP56_MB_INTRA; | |
679 | } else { | ||
680 | 917 | p->pict_type = AV_PICTURE_TYPE_P; | |
681 | 917 | vp56_parse_mb_type_models(s); | |
682 | 917 | s->parse_vector_models(s); | |
683 | 917 | s->mb_type = VP56_MB_INTER_NOVEC_PF; | |
684 | } | ||
685 | |||
686 |
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961 | if (s->parse_coeff_models(s)) |
687 | ✗ | goto next; | |
688 | |||
689 | 961 | memset(s->prev_dc, 0, sizeof(s->prev_dc)); | |
690 | 961 | s->prev_dc[1][VP56_FRAME_CURRENT] = 128; | |
691 | 961 | s->prev_dc[2][VP56_FRAME_CURRENT] = 128; | |
692 | |||
693 |
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74483 | for (block=0; block < 4*s->mb_width+6; block++) { |
694 | 73522 | s->above_blocks[block].ref_frame = VP56_FRAME_NONE; | |
695 | 73522 | s->above_blocks[block].dc_coeff = 0; | |
696 | 73522 | s->above_blocks[block].not_null_dc = 0; | |
697 | } | ||
698 | 961 | s->above_blocks[2*s->mb_width + 2].ref_frame = VP56_FRAME_CURRENT; | |
699 | 961 | s->above_blocks[3*s->mb_width + 4].ref_frame = VP56_FRAME_CURRENT; | |
700 | |||
701 | 961 | stride_y = p->linesize[0]; | |
702 | 961 | stride_uv = p->linesize[1]; | |
703 | |||
704 |
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961 | if (s->flip < 0) |
705 | 507 | mb_offset = 7; | |
706 | |||
707 | /* main macroblocks loop */ | ||
708 |
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12370 | for (mb_row=0; mb_row<s->mb_height; mb_row++) { |
709 |
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11409 | if (s->flip < 0) |
710 | 7186 | mb_row_flip = s->mb_height - mb_row - 1; | |
711 | else | ||
712 | 4223 | mb_row_flip = mb_row; | |
713 | |||
714 |
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57045 | for (block=0; block<4; block++) { |
715 | 45636 | s->left_block[block].ref_frame = VP56_FRAME_NONE; | |
716 | 45636 | s->left_block[block].dc_coeff = 0; | |
717 | 45636 | s->left_block[block].not_null_dc = 0; | |
718 | } | ||
719 | 11409 | memset(s->coeff_ctx, 0, sizeof(s->coeff_ctx)); | |
720 | 11409 | memset(s->coeff_ctx_last, 24, sizeof(s->coeff_ctx_last)); | |
721 | |||
722 | 11409 | s->above_block_idx[0] = 1; | |
723 | 11409 | s->above_block_idx[1] = 2; | |
724 | 11409 | s->above_block_idx[2] = 1; | |
725 | 11409 | s->above_block_idx[3] = 2; | |
726 | 11409 | s->above_block_idx[4] = 2*s->mb_width + 2 + 1; | |
727 | 11409 | s->above_block_idx[5] = 3*s->mb_width + 4 + 1; | |
728 | |||
729 | 11409 | s->block_offset[s->frbi] = (mb_row_flip*16 + mb_offset) * stride_y; | |
730 | 11409 | s->block_offset[s->srbi] = s->block_offset[s->frbi] + 8*stride_y; | |
731 | 11409 | s->block_offset[1] = s->block_offset[0] + 8; | |
732 | 11409 | s->block_offset[3] = s->block_offset[2] + 8; | |
733 | 11409 | s->block_offset[4] = (mb_row_flip*8 + mb_offset) * stride_uv; | |
734 | 11409 | s->block_offset[5] = s->block_offset[4]; | |
735 | |||
736 |
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257189 | for (mb_col=0; mb_col<s->mb_width; mb_col++) { |
737 |
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245780 | if (!damaged) { |
738 | 245418 | int ret = vp56_decode_mb(s, mb_row, mb_col, is_alpha); | |
739 |
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245418 | if (ret < 0) { |
740 | 1 | damaged = 1; | |
741 |
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1 | if (!s->have_undamaged_frame || !avctx->error_concealment) { |
742 | ✗ | s->discard_frame = 1; | |
743 | ✗ | return AVERROR_INVALIDDATA; | |
744 | } | ||
745 | } | ||
746 | } | ||
747 |
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245780 | if (damaged) |
748 | 363 | vp56_conceal_mb(s, mb_row, mb_col, is_alpha); | |
749 | |||
750 |
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1228900 | for (y=0; y<4; y++) { |
751 | 983120 | s->above_block_idx[y] += 2; | |
752 | 983120 | s->block_offset[y] += 16; | |
753 | } | ||
754 | |||
755 |
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737340 | for (uv=4; uv<6; uv++) { |
756 | 491560 | s->above_block_idx[uv] += 1; | |
757 | 491560 | s->block_offset[uv] += 8; | |
758 | } | ||
759 | } | ||
760 | } | ||
761 | |||
762 |
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961 | if (!damaged) |
763 | 960 | s->have_undamaged_frame = 1; | |
764 | |||
765 | 1 | next: | |
766 |
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961 | if ((p->flags & AV_FRAME_FLAG_KEY) || s->golden_frame) { |
767 |
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77 | if ((res = av_frame_replace(s->frames[VP56_FRAME_GOLDEN], p)) < 0) |
768 | ✗ | return res; | |
769 | } | ||
770 | |||
771 | 961 | av_frame_unref(s->frames[VP56_FRAME_PREVIOUS]); | |
772 | 961 | FFSWAP(AVFrame *, s->frames[VP56_FRAME_CURRENT], | |
773 | s->frames[VP56_FRAME_PREVIOUS]); | ||
774 | 961 | return 0; | |
775 | } | ||
776 | |||
777 | 21 | av_cold int ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s, | |
778 | int flip, int has_alpha) | ||
779 | { | ||
780 | int i; | ||
781 | |||
782 | 21 | s->avctx = avctx; | |
783 |
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21 | avctx->pix_fmt = has_alpha ? AV_PIX_FMT_YUVA420P : AV_PIX_FMT_YUV420P; |
784 |
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21 | if (avctx->skip_alpha) avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
785 | |||
786 | 21 | ff_h264chroma_init(&s->h264chroma, 8); | |
787 | 21 | ff_hpeldsp_init(&s->hdsp, avctx->flags); | |
788 | 21 | ff_videodsp_init(&s->vdsp, 8); | |
789 | 21 | ff_vp3dsp_init(&s->vp3dsp, avctx->flags); | |
790 |
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1365 | for (i = 0; i < 64; i++) { |
791 | #define TRANSPOSE(x) (((x) >> 3) | (((x) & 7) << 3)) | ||
792 | 1344 | s->idct_scantable[i] = TRANSPOSE(ff_zigzag_direct[i]); | |
793 | #undef TRANSPOSE | ||
794 | } | ||
795 | |||
796 |
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105 | for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) { |
797 | 84 | s->frames[i] = av_frame_alloc(); | |
798 |
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84 | if (!s->frames[i]) |
799 | ✗ | return AVERROR(ENOMEM); | |
800 | } | ||
801 | 21 | s->edge_emu_buffer_alloc = NULL; | |
802 | |||
803 | 21 | s->above_blocks = NULL; | |
804 | 21 | s->macroblocks = NULL; | |
805 | 21 | s->quantizer = -1; | |
806 | 21 | s->deblock_filtering = 1; | |
807 | 21 | s->golden_frame = 0; | |
808 | |||
809 | 21 | s->filter = NULL; | |
810 | |||
811 | 21 | s->has_alpha = has_alpha; | |
812 | |||
813 | 21 | s->modelp = &s->model; | |
814 | |||
815 |
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21 | if (flip) { |
816 | 11 | s->flip = -1; | |
817 | 11 | s->frbi = 2; | |
818 | 11 | s->srbi = 0; | |
819 | } else { | ||
820 | 10 | s->flip = 1; | |
821 | 10 | s->frbi = 0; | |
822 | 10 | s->srbi = 2; | |
823 | } | ||
824 | |||
825 | 21 | return 0; | |
826 | } | ||
827 | |||
828 | 21 | av_cold int ff_vp56_free_context(VP56Context *s) | |
829 | { | ||
830 | int i; | ||
831 | |||
832 | 21 | av_freep(&s->above_blocks); | |
833 | 21 | av_freep(&s->macroblocks); | |
834 | 21 | av_freep(&s->edge_emu_buffer_alloc); | |
835 | |||
836 |
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105 | for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) |
837 | 84 | av_frame_free(&s->frames[i]); | |
838 | |||
839 | 21 | return 0; | |
840 | } | ||
841 |