FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/rv60dec.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 1311 1448 90.5%
Functions: 87 89 97.8%
Branches: 870 1090 79.8%
Line Branch Exec Source
1 /*
2 * RV60 decoder
3 * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov
4 * Copyright (C) 2023 Peter Ross
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 "avcodec.h"
24 #include "codec_internal.h"
25 #include "decode.h"
26 #include "get_bits.h"
27 #include "golomb.h"
28 #include "libavutil/mem.h"
29 #include "rv60data.h"
30 #include "rv60dsp.h"
31 #include "rv60vlcs.h"
32 #include "threadprogress.h"
33 #include "unary.h"
34 #include "videodsp.h"
35
36 static const int8_t frame_types[4] = {AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_NONE};
37
38 enum CUType {
39 CU_INTRA = 0,
40 CU_INTER_MV,
41 CU_SKIP,
42 CU_INTER
43 };
44
45 enum PUType {
46 PU_FULL = 0,
47 PU_N2HOR,
48 PU_N2VER,
49 PU_QUARTERS,
50 PU_N4HOR,
51 PU_N34HOR,
52 PU_N4VER,
53 PU_N34VER
54 };
55
56 enum IntraMode {
57 INTRAMODE_INDEX = 0,
58 INTRAMODE_DC64,
59 INTRAMODE_PLANE64,
60 INTRAMODE_MODE
61 };
62
63 enum MVRefEnum {
64 MVREF_NONE,
65 MVREF_REF0,
66 MVREF_REF1,
67 MVREF_BREF,
68 MVREF_REF0ANDBREF,
69 MVREF_SKIP0,
70 MVREF_SKIP1,
71 MVREF_SKIP2,
72 MVREF_SKIP3
73 };
74
75 static const uint8_t skip_mv_ref[4] = {MVREF_SKIP0, MVREF_SKIP1, MVREF_SKIP2, MVREF_SKIP3};
76
77 enum {
78 TRANSFORM_NONE = 0,
79 TRANSFORM_16X16,
80 TRANSFORM_8X8,
81 TRANSFORM_4X4
82 };
83
84 static const VLCElem * cbp8_vlc[7][4];
85 static const VLCElem * cbp16_vlc[7][3][4];
86
87 typedef struct {
88 const VLCElem * l0[2];
89 const VLCElem * l12[2];
90 const VLCElem * l3[2];
91 const VLCElem * esc;
92 } CoeffVLCs;
93
94 static CoeffVLCs intra_coeff_vlc[5];
95 static CoeffVLCs inter_coeff_vlc[7];
96
97 #define MAX_VLC_SIZE 864
98 static VLCElem table_data[129148];
99
100 /* 32-bit version of rv34_gen_vlc */
101 392 static const VLCElem * gen_vlc(const uint8_t * bits, int size, VLCInitState * state)
102 {
103 392 int counts[17] = {0};
104 uint32_t codes[18];
105 uint32_t cw[MAX_VLC_SIZE];
106
107
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 67336 for (int i = 0; i < size; i++)
108 66944 counts[bits[i]]++;
109
110 392 codes[0] = counts[0] = 0;
111
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112 6664 codes[i+1] = (codes[i] + counts[i]) << 1;
113
114
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 67336 for (int i = 0; i < size; i++)
115 66944 cw[i] = codes[bits[i]]++;
116
117 392 return ff_vlc_init_tables(state, 9, size,
118 bits, 1, 1,
119 cw, 4, 4, 0);
120 }
121
122 4 static void build_coeff_vlc(const CoeffLens * lens, CoeffVLCs * vlc, int count, VLCInitState * state)
123 {
124
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 28 for (int i = 0; i < count; i++) {
125
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 72 for (int j = 0; j < 2; j++) {
126 48 vlc[i].l0[j] = gen_vlc(lens[i].l0[j], 864, state);
127 48 vlc[i].l12[j] = gen_vlc(lens[i].l12[j], 108, state);
128 48 vlc[i].l3[j] = gen_vlc(lens[i].l3[j], 108, state);
129 }
130 24 vlc[i].esc = gen_vlc(lens[i].esc, 32, state);
131 }
132 4 }
133
134 2 static av_cold void rv60_init_static_data(void)
135 {
136 2 VLCInitState state = VLC_INIT_STATE(table_data);
137
138
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139
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 70 for (int j = 0; j < 4; j++)
140 56 cbp8_vlc[i][j] = gen_vlc(rv60_cbp8_lens[i][j], 64, &state);
141
142
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144
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 210 for (int k = 0; k < 4; k++)
145 168 cbp16_vlc[i][j][k] = gen_vlc(rv60_cbp16_lens[i][j][k], 64, &state);
146
147 2 build_coeff_vlc(rv60_intra_lens, intra_coeff_vlc, 5, &state);
148 2 build_coeff_vlc(rv60_inter_lens, inter_coeff_vlc, 7, &state);
149 2 }
150
151 typedef struct {
152 int sign;
153 int size;
154 const uint8_t * data;
155 int data_size;
156 } Slice;
157
158 typedef struct {
159 int cu_split_pos;
160 uint8_t cu_split[1+4+16+64];
161
162 uint8_t coded_blk[64];
163
164 uint8_t avg_buffer[64*64 + 32*32*2];
165 uint8_t * avg_data[3];
166 int avg_linesize[3];
167 } ThreadContext;
168
169 typedef struct {
170 int16_t x;
171 int16_t y;
172 } MV;
173
174 typedef struct {
175 enum MVRefEnum mvref;
176 MV f_mv;
177 MV b_mv;
178 } MVInfo;
179
180 typedef struct {
181 enum IntraMode imode;
182 MVInfo mv;
183 } BlockInfo;
184
185 typedef struct {
186 enum CUType cu_type;
187 enum PUType pu_type;
188 } PUInfo;
189
190 typedef struct RV60Context {
191 AVCodecContext * avctx;
192 VideoDSPContext vdsp;
193
194 #define CUR_PIC 0
195 #define LAST_PIC 1
196 #define NEXT_PIC 2
197 AVFrame *last_frame[3];
198
199 int pict_type;
200 int qp;
201 int osvquant;
202 int ts;
203 int two_f_refs;
204 int qp_off_type;
205 int deblock;
206 int deblock_chroma;
207 int awidth;
208 int aheight;
209 int cu_width;
210 int cu_height;
211
212 Slice * slice;
213
214 int pu_stride;
215 PUInfo * pu_info;
216
217 int blk_stride;
218 BlockInfo * blk_info;
219
220 int dblk_stride;
221 uint8_t * left_str;
222 uint8_t * top_str;
223
224 uint64_t ref_pts[2], ts_scale;
225 uint32_t ref_ts[2];
226
227 struct ThreadProgress *progress;
228 unsigned nb_progress;
229 } RV60Context;
230
231 39 static int progress_init(RV60Context *s, unsigned count)
232 {
233
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 39 if (s->nb_progress < count) {
234 2 void *tmp = av_realloc_array(s->progress, count, sizeof(*s->progress));
235
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 2 if (!tmp)
236 ✗ return AVERROR(ENOMEM);
237 2 s->progress = tmp;
238 2 memset(s->progress + s->nb_progress, 0, (count - s->nb_progress) * sizeof(*s->progress));
239
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 12 for (int i = s->nb_progress; i < count; i++) {
240 10 int ret = ff_thread_progress_init(&s->progress[i], 1);
241
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 10 if (ret < 0)
242 ✗ return ret;
243 10 s->nb_progress = i + 1;
244 }
245 }
246
247
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 141 for (int i = 0; i < count; i++)
248 102 ff_thread_progress_reset(&s->progress[i]);
249
250 39 return 0;
251 }
252
253 4 static av_cold int rv60_decode_init(AVCodecContext * avctx)
254 {
255 static AVOnce init_static_once = AV_ONCE_INIT;
256 4 RV60Context *s = avctx->priv_data;
257
258 4 s->avctx = avctx;
259
260 4 ff_videodsp_init(&s->vdsp, 8);
261
262 4 avctx->pix_fmt = AV_PIX_FMT_YUV420P;
263
264
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 16 for (int i = 0; i < 3; i++) {
265 12 s->last_frame[i] = av_frame_alloc();
266
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 12 if (!s->last_frame[i])
267 ✗ return AVERROR(ENOMEM);
268 }
269
270 4 ff_thread_once(&init_static_once, rv60_init_static_data);
271
272 4 return 0;
273 }
274
275 39 static int update_dimensions_clear_info(RV60Context *s, int width, int height)
276 {
277 int ret;
278
279
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 39 if (width != s->avctx->width || height != s->avctx->height) {
280
281 ✗ av_log(s->avctx, AV_LOG_INFO, "changing dimensions to %dx%d\n", width, height);
282
283 ✗ for (int i = 0; i < 3; i++)
284 ✗ av_frame_unref(s->last_frame[i]);
285
286 ✗ if ((ret = ff_set_dimensions(s->avctx, width, height)) < 0)
287 ✗ return ret;
288
289 ✗ if (s->avctx->width <= 64 || s->avctx->height <= 64)
290 ✗ av_log(s->avctx, AV_LOG_WARNING, "unable to faithfully reproduce emulated edges; expect visual artefacts\n");
291 }
292
293 39 s->awidth = FFALIGN(width, 16);
294 39 s->aheight = FFALIGN(height, 16);
295
296 39 s->cu_width = (width + 63) >> 6;
297 39 s->cu_height = (height + 63) >> 6;
298
299 39 s->pu_stride = s->cu_width << 3;
300 39 s->blk_stride = s->cu_width << 4;
301
302
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 39 if ((ret = av_reallocp_array(&s->slice, s->cu_height, sizeof(s->slice[0]))) < 0)
303 ✗ return ret;
304
305
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 39 if ((ret = av_reallocp_array(&s->pu_info, s->pu_stride * (s->cu_height << 3), sizeof(s->pu_info[0]))) < 0)
306 ✗ return ret;
307
308
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 39 if ((ret = av_reallocp_array(&s->blk_info, s->blk_stride * (s->cu_height << 4), sizeof(s->blk_info[0]))) < 0)
309 ✗ return ret;
310
311
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 1671 for (int j = 0; j < s->cu_height << 4; j++)
312
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 103008 for (int i = 0; i < s->cu_width << 4; i++)
313 101376 s->blk_info[j*s->blk_stride + i].mv.mvref = MVREF_NONE;
314
315
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 39 if (s->deblock) {
316 int size;
317
318 39 s->dblk_stride = s->awidth >> 2;
319
320 39 size = s->dblk_stride * (s->aheight >> 2);
321
322
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 39 if ((ret = av_reallocp_array(&s->top_str, size, sizeof(s->top_str[0]))) < 0)
323 ✗ return ret;
324
325
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 39 if ((ret = av_reallocp_array(&s->left_str, size, sizeof(s->left_str[0]))) < 0)
326 ✗ return ret;
327
328 39 memset(s->top_str, 0, size);
329 39 memset(s->left_str, 0, size);
330 }
331
332 39 return 0;
333 }
334
335 4039 static int read_code012(GetBitContext * gb)
336 {
337
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 4039 if (!get_bits1(gb))
338 2755 return 0;
339 1284 return get_bits1(gb) + 1;
340 }
341
342 39 static int read_frame_header(RV60Context *s, GetBitContext *gb, int * width, int * height)
343 {
344
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 39 if (get_bits(gb, 2) != 3)
345 ✗ return AVERROR_INVALIDDATA;
346
347 39 skip_bits(gb, 2);
348 39 skip_bits(gb, 4);
349
350 39 s->pict_type = frame_types[get_bits(gb, 2)];
351
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 39 if (s->pict_type == AV_PICTURE_TYPE_NONE)
352 ✗ return AVERROR_INVALIDDATA;
353
354 39 s->qp = get_bits(gb, 6);
355 39 skip_bits1(gb);
356 39 skip_bits(gb, 2);
357 39 s->osvquant = get_bits(gb, 2);
358 39 skip_bits1(gb);
359 39 skip_bits(gb, 2);
360 39 s->ts = get_bits(gb, 24);
361 39 *width = (get_bits(gb, 11) + 1) * 4;
362 39 *height = get_bits(gb, 11) * 4;
363 39 skip_bits1(gb);
364
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 39 if (s->pict_type == AV_PICTURE_TYPE_I) {
365 2 s->two_f_refs = 0;
366 } else {
367
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 37 if (get_bits1(gb))
368 ✗ skip_bits(gb, 3);
369 37 s->two_f_refs = get_bits1(gb);
370 }
371 39 read_code012(gb);
372 39 read_code012(gb);
373 39 s->qp_off_type = read_code012(gb);
374 39 s->deblock = get_bits1(gb);
375
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 39 s->deblock_chroma = s->deblock && !get_bits1(gb);
376
377
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 39 if (get_bits1(gb)) {
378 ✗ int count = get_bits(gb, 2);
379 ✗ if (count) {
380 ✗ skip_bits(gb, 2);
381 ✗ for (int i = 0; i < count; i++)
382 ✗ for (int j = 0; j < 2 << i; j++)
383 ✗ skip_bits(gb, 8);
384 }
385 }
386
387 39 return 0;
388 }
389
390 39 static int read_slice_sizes(RV60Context *s, GetBitContext *gb)
391 {
392 39 int nbits = get_bits(gb, 5) + 1;
393 39 int last_size, sum = 0;
394
395
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 141 for (int i = 0; i < s->cu_height; i++)
396 102 s->slice[i].sign = get_bits1(gb);
397
398 39 s->slice[0].size = last_size = sum = get_bits(gb, nbits);
399
400
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 102 for (int i = 1; i < s->cu_height; i++) {
401 63 int diff = get_bits(gb, nbits);
402
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 63 if (s->slice[i].sign)
403 8 last_size += diff;
404 else
405 55 last_size -= diff;
406
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 63 if (last_size <= 0)
407 ✗ return AVERROR_INVALIDDATA;
408 63 s->slice[i].size = last_size;
409 63 sum += s->slice[i].size;
410 }
411
412 39 align_get_bits(gb);
413 39 return 0;
414 }
415
416 4447 static int read_intra_mode(GetBitContext * gb, int * param)
417 {
418
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 4447 if (get_bits1(gb)) {
419 3922 *param = read_code012(gb);
420 3922 return INTRAMODE_INDEX;
421 } else {
422 525 *param = get_bits(gb, 5);
423 525 return INTRAMODE_MODE;
424 }
425 }
426
427 15476 static int has_top_block(const RV60Context * s, int xpos, int ypos, int dx, int dy, int size)
428 {
429
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 15476 return ypos + dy && xpos + dx + size <= s->awidth;
430 }
431
432 13316 static int has_left_block(const RV60Context * s, int xpos, int ypos, int dx, int dy, int size)
433 {
434
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 13316 return xpos + dx && ypos + dy + size <= s->aheight;
435 }
436
437 8848 static int has_top_right_block(const RV60Context * s, int xpos, int ypos, int dx, int dy, int size)
438 {
439
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 8848 if (has_top_block(s, xpos, ypos, dx, dy, size * 2)) {
440 8603 int cxpos = ((xpos + dx) & 63) >> ff_log2(size);
441 8603 int cypos = ((ypos + dy) & 63) >> ff_log2(size);
442 8603 return !(rv60_avail_mask[cxpos] & cypos);
443 }
444 245 return 0;
445 }
446
447 8869 static int has_left_down_block(const RV60Context * s, int xpos, int ypos, int dx, int dy, int size)
448 {
449
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 8869 if (has_left_block(s, xpos, ypos, dx, dy, size * 2)) {
450 8717 int cxpos = (~(xpos + dx) & 63) >> ff_log2(size);
451 8717 int cypos = (~(ypos + dy) & 63) >> ff_log2(size);
452 8717 return rv60_avail_mask[cxpos] & cypos;
453 }
454 152 return 0;
455 }
456
457 typedef struct {
458 uint8_t t[129];
459 uint8_t l[129];
460 int has_t;
461 int has_tr;
462 int has_l;
463 int has_ld;
464 } IntraPredContext;
465
466 typedef struct {
467 int xpos;
468 int ypos;
469 int pu_pos;
470 int blk_pos;
471
472 enum CUType cu_type;
473 enum PUType pu_type;
474 enum IntraMode imode[4];
475 int imode_param[4];
476 MVInfo mv[4];
477
478 IntraPredContext ipred;
479 } CUContext;
480
481 9033 static void ipred_init(IntraPredContext * i)
482 {
483 9033 memset(i->t, 0x80, sizeof(i->t));
484 9033 memset(i->l, 0x80, sizeof(i->l));
485 9033 i->has_t = i->has_tr = i->has_l = i->has_ld = 0;
486 9033 }
487
488 9033 static void populate_ipred(const RV60Context * s, CUContext * cu, const uint8_t * src, int stride, int xoff, int yoff, int size, int is_luma)
489 {
490
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 9033 if (is_luma)
491 4447 src += (cu->ypos + yoff) * stride + cu->xpos + xoff;
492 else
493 4586 src += (cu->ypos >> 1) * stride + (cu->xpos >> 1);
494
495 9033 ipred_init(&cu->ipred);
496
497
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 9033 if (cu->ypos + yoff > 0) {
498 8848 cu->ipred.has_t = 1;
499
500 8848 memcpy(cu->ipred.t + 1, src - stride, size);
501
502
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 8848 if ((is_luma && has_top_right_block(s, cu->xpos, cu->ypos, xoff, yoff, size)) ||
503
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 4478 (!is_luma && has_top_right_block(s, cu->xpos, cu->ypos, 0, 0, size << 1))) {
504 5697 cu->ipred.has_tr = 1;
505 5697 memcpy(cu->ipred.t + size + 1, src - stride + size, size);
506 } else
507 3151 memset(cu->ipred.t + size + 1, cu->ipred.t[size], size);
508
509
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 8848 if (cu->xpos + xoff > 0)
510 8690 cu->ipred.t[0] = src[-stride - 1];
511 }
512
513
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 9033 if (cu->xpos + xoff > 0) {
514 8869 cu->ipred.has_l = 1;
515
516
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 63029 for (int y = 0; y < size; y++)
517 54160 cu->ipred.l[y + 1] = src[y*stride - 1];
518
519
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 8869 if ((is_luma && has_left_down_block(s, cu->xpos, cu->ypos, xoff, yoff, size)) ||
520
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 4484 (!is_luma && has_left_down_block(s, cu->xpos, cu->ypos, 0, 0, size << 1))) {
521 2759 cu->ipred.has_ld = 1;
522
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 19791 for (int y = size; y < size * 2; y++)
523 17032 cu->ipred.l[y + 1] = src[y*stride - 1];
524 } else
525 6110 memset(cu->ipred.l + size + 1, cu->ipred.l[size], size);
526
527
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 8869 if (cu->ypos + yoff > 0)
528 8690 cu->ipred.l[0] = src[-stride - 1];
529 }
530 9033 }
531
532 1492 static void pred_plane(const IntraPredContext * p, uint8_t * dst, int stride, int size)
533 {
534 1492 int lastl = p->l[size + 1];
535 1492 int lastt = p->t[size + 1];
536 int tmp1[64], tmp2[64];
537 int top_ref[64], left_ref[64];
538 int shift;
539
540
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 8148 for (int i = 0; i < size; i++) {
541 6656 tmp1[i] = lastl - p->t[i + 1];
542 6656 tmp2[i] = lastt - p->l[i + 1];
543 }
544
545 1492 shift = ff_log2(size) + 1;
546
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 8148 for (int i = 0; i < size; i++) {
547 6656 top_ref[i] = p->t[i + 1] << (shift - 1);
548 6656 left_ref[i] = p->l[i + 1] << (shift - 1);
549 }
550
551
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 8148 for (int y = 0; y < size; y++) {
552 6656 int add = tmp2[y];
553 6656 int sum = left_ref[y] + size;
554
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 41472 for (int x = 0; x < size; x++) {
555 34816 int v = tmp1[x] + top_ref[x];
556 34816 sum += add;
557 34816 top_ref[x] = v;
558 34816 dst[y*stride + x] = (sum + v) >> shift;
559 }
560 }
561 1492 }
562
563 5606 static void pred_dc(const IntraPredContext * p, uint8_t * dst, int stride, int size, int filter)
564 {
565 int dc;
566
567
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 5606 if (!p->has_t && !p->has_l)
568 ✗ dc = 0x80;
569 else {
570 5606 int sum = 0;
571
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 5606 if (p->has_t)
572
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 43045 for (int x = 0; x < size; x++)
573 37568 sum += p->t[x + 1];
574
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 5606 if (p->has_l)
575
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 42762 for (int y = 0; y < size; y++)
576 37304 sum += p->l[y + 1];
577
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 5606 if (p->has_t && p->has_l)
578 5329 dc = (sum + size) / (size * 2);
579 else
580 277 dc = (sum + size / 2) / size;
581 }
582
583
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 44122 for (int y = 0; y < size; y++)
584 38516 memset(dst + y*stride, dc, size);
585
586
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 5606 if (filter && p->has_t && p->has_l) {
587 2373 dst[0] = (p->t[1] + p->l[1] + 2 * dst[0] + 2) >> 2;
588
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 19284 for (int x = 1; x < size; x++)
589 16911 dst[x] = (p->t[x + 1] + 3 * dst[x] + 2) >> 2;
590
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 19284 for (int y = 1; y < size; y++)
591 16911 dst[y*stride] = (p->l[y + 1] + 3 * dst[y*stride] + 2) >> 2;
592 }
593 5606 }
594
595 1762 static void filter_weak(uint8_t * dst, const uint8_t * src, int size)
596 {
597 1762 dst[0] = src[0];
598
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 8292 for (int i = 1; i < size - 1; i++)
599 6530 dst[i] = (src[i - 1] + 2*src[i] + src[i + 1] + 2) >> 2;
600 1762 dst[size - 1] = src[size - 1];
601 1762 }
602
603 ✗ static void filter_bilin32(uint8_t * dst, int v0, int v1, int size)
604 {
605 ✗ int diff = v1 - v0;
606 ✗ int sum = (v0 << 5) + (1 << (5 - 1));
607 ✗ for (int i = 0; i < size; i++) {
608 ✗ dst[i] = sum >> 5;
609 ✗ sum += diff;
610 }
611 ✗ }
612
613 355 static void pred_hor_angle(uint8_t * dst, int stride, int size, int weight, const uint8_t * src)
614 {
615 355 int sum = 0;
616
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 1775 for (int x = 0; x < size; x++) {
617 int off, frac;
618 1420 sum += weight;
619 1420 off = (sum >> 5) + 32;
620 1420 frac = sum & 0x1F;
621
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 1420 if (!frac)
622 ✗ for (int y = 0; y < size; y++)
623 ✗ dst[y*stride + x] = src[off + y];
624 else {
625
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 7100 for (int y = 0; y < size; y++) {
626 5680 int a = src[off + y];
627 5680 int b = src[off + y + 1];
628 5680 dst[y*stride + x] = ((32 - frac) * a + frac * b + 16) >> 5;
629 }
630 }
631 }
632 355 }
633
634 351 static void pred_ver_angle(uint8_t * dst, int stride, int size, int weight, const uint8_t * src)
635 {
636 351 int sum = 0;
637
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 1867 for (int y = 0; y < size; y++) {
638 int off, frac;
639 1516 sum += weight;
640 1516 off = (sum >> 5) + 32;
641 1516 frac = sum & 0x1F;
642
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 1516 if (!frac)
643 208 memcpy(dst + y*stride, src + off, size);
644 else {
645
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 6540 for (int x = 0; x < size; x++) {
646 5232 int a = src[off + x];
647 5232 int b = src[off + x + 1];
648 5232 dst[y*stride + x] = ((32 - frac) * a + frac * b + 16) >> 5;
649 }
650 }
651 }
652 351 }
653
654 9033 static int pred_angle(const IntraPredContext * p, uint8_t * dst, int stride, int size, int imode, int filter)
655 {
656 uint8_t filtered1[96], filtered2[96];
657
658
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 9033 if (!imode) {
659 1492 pred_plane(p, dst, stride, size);
660
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 7541 } else if (imode == 1) {
661 5606 pred_dc(p, dst, stride, size, filter);
662
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 1935 } else if (imode <= 9) {
663 323 int ang_weight = rv60_ipred_angle[10 - imode];
664 323 int add_size = (size * ang_weight + 31) >> 5;
665
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 323 if (size <= 16) {
666 323 filter_weak(filtered1 + 32, &p->l[1], size + add_size);
667 } else {
668 ✗ filter_bilin32(filtered1 + 32, p->l[1], p->l[33], 32);
669 ✗ filter_bilin32(filtered1 + 64, p->l[32], p->l[64], add_size);
670 }
671 323 pred_hor_angle(dst, stride, size, ang_weight, filtered1);
672
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 1612 } else if (imode == 10) {
673
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 357 if (size <= 16)
674 357 filter_weak(filtered1 + 32, &p->l[1], size);
675 else
676 ✗ filter_bilin32(filtered1 + 32, p->l[1], p->l[33], 32);
677
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 2589 for (int y = 0; y < size; y++)
678
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 20568 for (int x = 0; x < size; x++)
679 18336 dst[y*stride + x] = filtered1[32 + y];
680
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 357 if (filter) {
681 165 int tl = p->t[0];
682
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 1381 for (int x = 0; x < size; x++)
683 1216 dst[x] = av_clip_uint8(dst[x] + ((p->t[x + 1] - tl) >> 1));
684 }
685
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 1255 } else if (imode <= 17) {
686 32 int ang_weight = rv60_ipred_angle[imode - 10];
687 32 int inv_angle = rv60_ipred_inv_angle[imode - 10];
688 32 int add_size = (size * ang_weight + 31) >> 5;
689
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 32 if (size <= 16) {
690 32 memcpy(filtered1 + 32 - 1, p->l, size + 1);
691 32 memcpy(filtered2 + 32 - 1, p->t, size + 1);
692 } else {
693 ✗ filtered1[32 - 1] = p->l[0];
694 ✗ filter_bilin32(filtered1 + 32, p->l[0], p->l[32], 32);
695 ✗ filtered2[32 - 1] = p->t[0];
696 ✗ filter_bilin32(filtered2 + 32, p->t[0], p->t[32], 32);
697 }
698
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 32 if (add_size > 1) {
699 10 int sum = 0x80;
700
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 28 for (int i = 1; i < add_size; i++) {
701 18 sum += inv_angle;
702 18 filtered1[32 - 1 - i] = filtered2[32 - 1 + (sum >> 8)];
703 }
704 }
705 32 pred_hor_angle(dst, stride, size, -ang_weight, filtered1);
706
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 1223 } else if (imode <= 25) {
707 141 int ang_weight = rv60_ipred_angle[26 - imode];
708 141 int inv_angle = rv60_ipred_inv_angle[26 - imode];
709 141 int add_size = (size * ang_weight + 31) >> 5;
710
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 141 if (size <= 16) {
711 141 memcpy(filtered1 + 32 - 1, p->t, size + 1);
712 141 memcpy(filtered2 + 32 - 1, p->l, size + 1);
713 } else {
714 ✗ filtered1[32 - 1] = p->t[0];
715 ✗ filter_bilin32(filtered1 + 32, p->t[0], p->t[32], 32);
716 ✗ filtered2[32 - 1] = p->l[0];
717 ✗ filter_bilin32(filtered2 + 32, p->l[0], p->l[32], 32);
718 }
719
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 141 if (add_size > 1) {
720 65 int sum = 0x80;
721
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 307 for (int i = 1; i < add_size; i++) {
722 242 sum += inv_angle;
723 242 filtered1[32 - 1 - i] = filtered2[32 - 1 + (sum >> 8)];
724 }
725 }
726 141 pred_ver_angle(dst, stride, size, -ang_weight, filtered1);
727
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 1082 } else if (imode == 26) {
728
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 872 if (size <= 16)
729 872 filter_weak(&filtered1[32], &p->t[1], size);
730 else
731 ✗ filter_bilin32(filtered1 + 32, p->t[1], p->t[33], 32);
732
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 5972 for (int i = 0; i < size; i++)
733 5100 memcpy(dst + i*stride, filtered1 + 32, size);
734
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 872 if (filter) {
735 396 int tl = p->l[0];
736
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 3240 for (int y = 0; y < size; y++)
737 2844 dst[y*stride] = av_clip_uint8(dst[y*stride] + ((p->l[y+1] - tl) >> 1));
738 }
739
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 210 } else if (imode <= 34) {
740 210 int ang_weight = rv60_ipred_angle[imode - 26];
741 210 int add_size = (size * ang_weight + 31) >> 5;
742
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 210 if (size <= 16)
743 210 filter_weak(&filtered1[32], &p->t[1], size + add_size);
744 else {
745 ✗ filter_bilin32(filtered1 + 32, p->t[1], p->t[33], 32);
746 ✗ filter_bilin32(filtered1 + 64, p->t[32], p->t[64], add_size);
747 }
748 210 pred_ver_angle(dst, stride, size, ang_weight, filtered1);
749 } else
750 ✗ return AVERROR_INVALIDDATA;
751 9033 return 0;
752 }
753
754 12986 static int pu_is_intra(const PUInfo * pu)
755 {
756 12986 return pu->cu_type == CU_INTRA;
757 }
758
759 1355 static int ipm_compar(const void * a, const void * b)
760 {
761 1355 return *(const enum IntraMode *)a - *(const enum IntraMode *)b;
762 }
763
764 #define MK_UNIQUELIST(name, type, max_size) \
765 typedef struct { \
766 type list[max_size]; \
767 int size; \
768 } unique_list_##name; \
769 \
770 static void unique_list_##name##_init(unique_list_##name * s) \
771 { \
772 memset(s->list, 0, sizeof(s->list)); \
773 s->size = 0; \
774 } \
775 \
776 static void unique_list_##name##_add(unique_list_##name * s, type cand) \
777 { \
778 if (s->size == max_size) \
779 return; \
780 \
781 for (int i = 0; i < s->size; i++) { \
782 if (!memcmp(&s->list[i], &cand, sizeof(type))) { \
783 return; \
784 } \
785 } \
786 s->list[s->size++] = cand; \
787 }
788
789
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 114034 MK_UNIQUELIST(intramode, enum IntraMode, 3)
790
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 28116 MK_UNIQUELIST(mvinfo, MVInfo, 4)
791
792 4447 static int reconstruct_intra(const RV60Context * s, const CUContext * cu, int size, int sub)
793 {
794 int blk_pos, tl_x, tl_y;
795 unique_list_intramode ipm_cand;
796
797
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 4447 if (cu->imode[0] == INTRAMODE_DC64)
798 ✗ return 1;
799
800
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 4447 if (cu->imode[0] == INTRAMODE_PLANE64)
801 ✗ return 0;
802
803 4447 unique_list_intramode_init(&ipm_cand);
804
805
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 4447 if (has_top_block(s, cu->xpos, cu->ypos, (sub & 1) * 4, 0, size)) {
806 4324 const PUInfo * pu = &s->pu_info[cu->pu_pos - s->pu_stride];
807
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 4324 if (pu_is_intra(pu))
808 3612 unique_list_intramode_add(&ipm_cand, s->blk_info[cu->blk_pos - s->blk_stride + (sub & 1)].imode);
809 }
810
811 4447 blk_pos = cu->blk_pos + (sub >> 1) * s->blk_stride + (sub & 1);
812
813
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 4447 if (has_left_block(s, cu->xpos, cu->ypos, 0, (sub & 2) * 2, size)) {
814 4363 const PUInfo * pu = &s->pu_info[cu->pu_pos - 1];
815
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 4363 if (pu_is_intra(pu))
816 3678 unique_list_intramode_add(&ipm_cand, s->blk_info[blk_pos - 1 - (sub & 1)].imode);
817 }
818
819
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 4447 tl_x = !(sub & 2) ? (cu->xpos + (sub & 1) * 4) : cu->xpos;
820 4447 tl_y = cu->ypos + (sub & 2) * 4;
821
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 4447 if (tl_x > 0 && tl_y > 0) {
822 const PUInfo * pu;
823
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 4299 switch (sub) {
824 2190 case 0: pu = &s->pu_info[cu->pu_pos - s->pu_stride - 1]; break;
825 695 case 1: pu = &s->pu_info[cu->pu_pos - s->pu_stride]; break;
826 1414 default: pu = &s->pu_info[cu->pu_pos - 1];
827 }
828
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 4299 if (pu_is_intra(pu)) {
829
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 3616 if (sub != 3)
830 3046 unique_list_intramode_add(&ipm_cand, s->blk_info[blk_pos - s->blk_stride - 1].imode);
831 else
832 570 unique_list_intramode_add(&ipm_cand, s->blk_info[blk_pos - s->blk_stride - 2].imode);
833 }
834 }
835
836
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 31129 for (int i = 0; i < FF_ARRAY_ELEMS(rv60_candidate_intra_angles); i++)
837 26682 unique_list_intramode_add(&ipm_cand, rv60_candidate_intra_angles[i]);
838
839
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 4447 if (cu->imode[sub] == INTRAMODE_INDEX)
840 3922 return ipm_cand.list[cu->imode_param[sub]];
841
842
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 525 if (cu->imode[sub] == INTRAMODE_MODE) {
843 525 enum IntraMode imode = cu->imode_param[sub];
844 525 qsort(ipm_cand.list, 3, sizeof(ipm_cand.list[0]), ipm_compar);
845
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 2100 for (int i = 0; i < 3; i++)
846
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 1575 if (imode >= ipm_cand.list[i])
847 1175 imode++;
848 525 return imode;
849 }
850
851 ✗ av_assert0(0); // should never reach here
852 return 0;
853 }
854
855 1812 static int get_skip_mv_index(enum MVRefEnum mvref)
856 {
857
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 1812 switch (mvref) {
858 287 case MVREF_SKIP1: return 1;
859 61 case MVREF_SKIP2: return 2;
860 15 case MVREF_SKIP3: return 3;
861 1449 default: return 0;
862 }
863 }
864
865 10767 static void add_if_valid(unique_list_mvinfo * skip_cand, const MVInfo * mvi)
866 {
867
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 10767 if (mvi->mvref != MVREF_NONE)
868 8846 unique_list_mvinfo_add(skip_cand, *mvi);
869 10767 }
870
871 1812 static void fill_mv_skip_cand(RV60Context * s, const CUContext * cu, unique_list_mvinfo * skip_cand, int size)
872 {
873 1812 int mv_size = size >> 2;
874
875
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 1812 if (cu->xpos)
876 1649 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos - 1].mv);
877
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 1812 if (cu->ypos)
878 1562 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos - s->blk_stride].mv);
879
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 1812 if (cu->ypos && cu->xpos + size < s->awidth)
880 1418 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos - s->blk_stride + mv_size].mv);
881
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 1812 if (cu->xpos && cu->ypos + size < s->aheight)
882 1503 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos + s->blk_stride * mv_size - 1].mv);
883
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 1812 if (cu->xpos)
884 1649 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos + s->blk_stride * (mv_size - 1) - 1].mv);
885
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 1812 if (cu->ypos)
886 1562 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos - s->blk_stride + mv_size - 1].mv);
887
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 1812 if (cu->xpos && cu->ypos)
888 1424 add_if_valid(skip_cand, &s->blk_info[cu->blk_pos - s->blk_stride - 1].mv);
889
890
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 5694 for (int i = skip_cand->size; i < 4; i++)
891 3882 skip_cand->list[i] = (MVInfo){.mvref=MVREF_REF0,.f_mv={0,0},.b_mv={0,0}};
892 1812 }
893
894 typedef struct {
895 int w, h;
896 } Dimensions;
897
898 5808 static void get_mv_dimensions(Dimensions * dim, enum PUType pu_type, int part_no, int size)
899 {
900 5808 int mv_size = size >> 2;
901
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 5808 switch (pu_type) {
902 2920 case PU_FULL:
903 2920 dim->w = dim->h = mv_size;
904 2920 break;
905 380 case PU_N2HOR:
906 380 dim->w = mv_size;
907 380 dim->h = mv_size >> 1;
908 380 break;
909 356 case PU_N2VER:
910 356 dim->w = mv_size >> 1;
911 356 dim->h = mv_size;
912 356 break;
913 2152 case PU_QUARTERS:
914 2152 dim->w = dim->h = mv_size >> 1;
915 2152 break;
916 ✗ case PU_N4HOR:
917 ✗ dim->w = mv_size;
918 ✗ dim->h = !part_no ? (mv_size >> 2) : ((3 * mv_size) >> 2);
919 ✗ break;
920 ✗ case PU_N34HOR:
921 ✗ dim->w = mv_size;
922 ✗ dim->h = !part_no ? ((3 * mv_size) >> 2) : (mv_size >> 2);
923 ✗ break;
924 ✗ case PU_N4VER:
925 ✗ dim->w = !part_no ? (mv_size >> 2) : ((3 * mv_size) >> 2);
926 ✗ dim->h = mv_size;
927 ✗ break;
928 ✗ case PU_N34VER:
929 ✗ dim->w = !part_no ? ((3 * mv_size) >> 2) : (mv_size >> 2);
930 ✗ dim->h = mv_size;
931 ✗ break;
932 }
933 5808 }
934
935 3656 static int has_hor_split(enum PUType pu_type)
936 {
937
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 3656 return pu_type == PU_N2HOR || pu_type == PU_N4HOR || pu_type == PU_N34HOR || pu_type == PU_QUARTERS;
938 }
939
940 3276 static int has_ver_split(enum PUType pu_type)
941 {
942
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 3276 return pu_type == PU_N2VER || pu_type == PU_N4VER || pu_type == PU_N34VER || pu_type == PU_QUARTERS;
943 }
944
945 4833 static int pu_type_num_parts(enum PUType pu_type)
946 {
947
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 4833 switch (pu_type) {
948 3474 case PU_FULL: return 1;
949 807 case PU_QUARTERS: return 4;
950 552 default: return 2;
951 }
952 }
953
954 5808 static void get_next_mv(const RV60Context * s, const Dimensions * dim, enum PUType pu_type, int part_no, int * mv_pos, int * mv_x, int * mv_y)
955 {
956
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 5808 if (pu_type == PU_QUARTERS) {
957
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 2152 if (part_no != 1) {
958 1614 *mv_pos += dim->w;
959 1614 *mv_x += dim->w;
960 } else {
961 538 *mv_pos += dim->h*s->blk_stride - dim->w;
962 538 *mv_x -= dim->w;
963 538 *mv_y += dim->h;
964 }
965
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 3656 } else if (has_hor_split(pu_type)) {
966 380 *mv_pos += dim->h * s->blk_stride;
967 380 *mv_y += dim->h;
968
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 3276 } else if (has_ver_split(pu_type)) {
969 356 *mv_pos += dim->w;
970 356 *mv_x += dim->w;
971 }
972 5808 }
973
974 2915 static int mv_is_ref0(enum MVRefEnum mvref)
975 {
976
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 2915 return mvref == MVREF_REF0 || mvref == MVREF_REF0ANDBREF;
977 }
978
979 24675 static int mv_is_forward(enum MVRefEnum mvref)
980 {
981
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 24675 return mvref == MVREF_REF0 || mvref == MVREF_REF1 || mvref == MVREF_REF0ANDBREF;
982 }
983
984 27282 static int mv_is_backward(enum MVRefEnum mvref)
985 {
986
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 27282 return mvref == MVREF_BREF || mvref == MVREF_REF0ANDBREF;
987 }
988
989 4408 static int mvinfo_matches_forward(const MVInfo * a, const MVInfo * b)
990 {
991
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 4408 return a->mvref == b->mvref || (mv_is_ref0(a->mvref) && mv_is_ref0(b->mvref));
992 }
993
994 1819 static int mvinfo_matches_backward(const MVInfo * a, const MVInfo * b)
995 {
996
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 1819 return mv_is_backward(a->mvref) && mv_is_backward(b->mvref);
997 }
998
999 24452 static int mvinfo_is_deblock_cand(const MVInfo * a, const MVInfo * b)
1000 {
1001 int diff;
1002
1003
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 24452 if (a->mvref != b->mvref)
1004 1775 return 1;
1005
1006 22677 diff = 0;
1007
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 22677 if (mv_is_forward(a->mvref)) {
1008 19370 int dx = a->f_mv.x - b->f_mv.x;
1009 19370 int dy = a->f_mv.y - b->f_mv.y;
1010 19370 diff += FFABS(dx) + FFABS(dy);
1011 }
1012
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 22677 if (mv_is_backward(a->mvref)) {
1013 4331 int dx = a->b_mv.x - b->b_mv.x;
1014 4331 int dy = a->b_mv.y - b->b_mv.y;
1015 4331 diff += FFABS(dx) + FFABS(dy);
1016 }
1017 22677 return diff > 4;
1018 }
1019
1020 367 static void mv_pred(MV * ret, MV a, MV b, MV c)
1021 {
1022 #define MEDIAN(x) \
1023 if (a.x < b.x) \
1024 if (b.x < c.x) \
1025 ret->x = b.x; \
1026 else \
1027 ret->x = a.x < c.x ? c.x : a.x; \
1028 else \
1029 if (b.x < c.x) \
1030 ret->x = a.x < c.x ? a.x : c.x; \
1031 else \
1032 ret->x = b.x; \
1033
1034
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 367 MEDIAN(x)
1035
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 367 MEDIAN(y)
1036 367 }
1037
1038 1998 static void predict_mv(const RV60Context * s, MVInfo * dst, int mv_x, int mv_y, int mv_w, const MVInfo * src)
1039 {
1040 1998 int mv_pos = mv_y * s->blk_stride + mv_x;
1041 MV f_mv, b_mv;
1042
1043 1998 dst->mvref = src->mvref;
1044
1045
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 1998 if (mv_is_forward(src->mvref)) {
1046 1537 MV cand[3] = {0};
1047 1537 int cand_size = 0;
1048
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 1537 if (mv_x > 0) {
1049 1426 const MVInfo * mv = &s->blk_info[mv_pos - 1].mv;
1050
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 1426 if (mvinfo_matches_forward(mv, src))
1051 906 cand[cand_size++] = mv->f_mv;
1052 }
1053
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 1537 if (mv_y > 0) {
1054 1515 const MVInfo * mv = &s->blk_info[mv_pos - s->blk_stride].mv;
1055
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 1515 if (mvinfo_matches_forward(mv, src))
1056 936 cand[cand_size++] = mv->f_mv;
1057 }
1058
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 1537 if (has_top_block(s, mv_x << 2, mv_y << 2, mv_w << 2, 0, 4)) {
1059 1467 const MVInfo * mv = &s->blk_info[mv_pos - s->blk_stride + mv_w].mv;
1060
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 1467 if (mvinfo_matches_forward(mv, src))
1061 561 cand[cand_size++] = mv->f_mv;
1062 }
1063
1064
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 1537 switch (cand_size) {
1065 481 case 1:
1066 481 f_mv.x = cand[0].x;
1067 481 f_mv.y = cand[0].y;
1068 481 break;
1069 523 case 2:
1070 523 f_mv.x = (cand[0].x + cand[1].x) >> 1;
1071 523 f_mv.y = (cand[0].y + cand[1].y) >> 1;
1072 523 break;
1073 292 case 3:
1074 292 mv_pred(&f_mv, cand[0], cand[1], cand[2]);
1075 292 break;
1076 241 default:
1077 241 f_mv = (MV){0,0};
1078 241 break;
1079 }
1080 } else {
1081 461 f_mv = (MV){0,0};
1082 }
1083
1084 1998 dst->f_mv.x = src->f_mv.x + f_mv.x;
1085 1998 dst->f_mv.y = src->f_mv.y + f_mv.y;
1086
1087
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 1998 if (mv_is_backward(src->mvref)) {
1088 644 MV cand[3] = {0};
1089 644 int cand_size = 0;
1090
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 644 if (mv_x > 0) {
1091 587 const MVInfo * mv = &s->blk_info[mv_pos - 1].mv;
1092
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 587 if (mvinfo_matches_backward(mv, src))
1093 296 cand[cand_size++] = mv->b_mv;
1094 }
1095
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 644 if (mv_y > 0) {
1096 628 const MVInfo * mv = &s->blk_info[mv_pos - s->blk_stride].mv;
1097
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 628 if (mvinfo_matches_backward(mv, src))
1098 297 cand[cand_size++] = mv->b_mv;
1099 }
1100
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 644 if (has_top_block(s, mv_x << 2, mv_y << 2, mv_w << 2, 0, 4)) {
1101 604 const MVInfo * mv = &s->blk_info[mv_pos - s->blk_stride + mv_w].mv;
1102
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 604 if (mvinfo_matches_backward(mv, src))
1103 195 cand[cand_size++] = mv->b_mv;
1104 }
1105
1106
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 644 switch (cand_size) {
1107 219 case 1:
1108 219 b_mv.x = cand[0].x;
1109 219 b_mv.y = cand[0].y;
1110 219 break;
1111 172 case 2:
1112 172 b_mv.x = (cand[0].x + cand[1].x) >> 1;
1113 172 b_mv.y = (cand[0].y + cand[1].y) >> 1;
1114 172 break;
1115 75 case 3:
1116 75 mv_pred(&b_mv, cand[0], cand[1], cand[2]);
1117 75 break;
1118 178 default:
1119 178 b_mv = (MV){0,0};
1120 178 break;
1121 }
1122 } else {
1123 1354 b_mv = (MV){0,0};
1124 }
1125
1126 1998 dst->b_mv.x = src->b_mv.x + b_mv.x;
1127 1998 dst->b_mv.y = src->b_mv.y + b_mv.y;
1128 1998 }
1129
1130 5112 static void reconstruct(RV60Context * s, const CUContext * cu, int size)
1131 {
1132 5112 int pu_size = size >> 3;
1133 PUInfo pui;
1134 int imode, mv_x, mv_y, mv_pos, count, mv_size;
1135 unique_list_mvinfo skip_cand;
1136 Dimensions dim;
1137 MVInfo mv;
1138
1139 5112 pui.cu_type = cu->cu_type;
1140 5112 pui.pu_type = cu->pu_type;
1141
1142
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 5112 if (cu->cu_type == CU_INTRA && cu->pu_type == PU_QUARTERS) {
1143 718 s->pu_info[cu->pu_pos] = pui;
1144
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 2154 for (int y = 0; y < 2; y++)
1145
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 4308 for (int x = 0; x < 2; x++)
1146 2872 s->blk_info[cu->blk_pos + y*s->blk_stride + x].imode =
1147 2872 reconstruct_intra(s, cu, 4, y*2 + x);
1148 718 return;
1149 }
1150
1151
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 4394 switch (cu->cu_type) {
1152 1575 case CU_INTRA:
1153 1575 imode = reconstruct_intra(s, cu, size, 0);
1154
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 6351 for (int y = 0; y < size >> 2; y++)
1155
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 20832 for (int x = 0; x < size >> 2; x++)
1156 16056 s->blk_info[cu->blk_pos + y*s->blk_stride + x].imode = imode;
1157 1575 break;
1158 1007 case CU_INTER_MV:
1159 1007 mv_x = cu->xpos >> 2;
1160 1007 mv_y = cu->ypos >> 2;
1161 1007 mv_pos = cu->blk_pos;
1162 1007 count = pu_type_num_parts(cu->pu_type);
1163
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 3005 for (int part_no = 0; part_no < count; part_no++) {
1164 MVInfo mv;
1165 1998 get_mv_dimensions(&dim, cu->pu_type, part_no, size);
1166 1998 predict_mv(s, &mv, mv_x, mv_y, dim.w, &cu->mv[part_no]);
1167
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 5454 for (int y = 0; y < dim.h; y++)
1168
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 10364 for (int x = 0; x < dim.w; x++)
1169 6908 s->blk_info[mv_pos + y*s->blk_stride + x].mv = mv;
1170 1998 get_next_mv(s, &dim, cu->pu_type, part_no, &mv_pos, &mv_x, &mv_y);
1171 }
1172 1007 break;
1173 1812 default:
1174 1812 unique_list_mvinfo_init(&skip_cand);
1175 1812 fill_mv_skip_cand(s, cu, &skip_cand, size);
1176 1812 mv = skip_cand.list[get_skip_mv_index(cu->mv[0].mvref)];
1177 1812 mv_size = size >> 2;
1178
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 9318 for (int y = 0; y < mv_size; y++)
1179
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 61206 for (int x = 0; x < mv_size; x++)
1180 53700 s->blk_info[cu->blk_pos + y*s->blk_stride + x].mv = mv;
1181 }
1182
1183
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 11766 for (int y = 0; y < pu_size; y++)
1184
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 26538 for (int x = 0; x < pu_size; x++)
1185 19166 s->pu_info[cu->pu_pos + y*s->pu_stride + x] = pui;
1186 }
1187
1188 2181 static void read_mv(GetBitContext * gb, MV * mv)
1189 {
1190 2181 mv->x = get_interleaved_se_golomb(gb);
1191 2181 mv->y = get_interleaved_se_golomb(gb);
1192 2181 }
1193
1194 1998 static void read_mv_info(RV60Context *s, GetBitContext * gb, MVInfo * mvinfo, int size, enum PUType pu_type)
1195 {
1196
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 1998 if (s->pict_type != AV_PICTURE_TYPE_B) {
1197
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 866 if (s->two_f_refs && get_bits1(gb))
1198 192 mvinfo->mvref = MVREF_REF1;
1199 else
1200 674 mvinfo->mvref = MVREF_REF0;
1201 866 read_mv(gb, &mvinfo->f_mv);
1202 866 mvinfo->b_mv.x = mvinfo->b_mv.y = 0;
1203 } else {
1204
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 1132 if ((size <= 8 && (size != 8 || pu_type != PU_FULL)) || get_bits1(gb)) {
1205
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 1898 if (!get_bits1(gb)) {
1206 488 mvinfo->mvref = MVREF_REF0;
1207 488 read_mv(gb, &mvinfo->f_mv);
1208 488 mvinfo->b_mv.x = mvinfo->b_mv.y = 0;
1209 } else {
1210 461 mvinfo->mvref = MVREF_BREF;
1211 461 mvinfo->f_mv.x = mvinfo->f_mv.y = 0;
1212 461 read_mv(gb, &mvinfo->b_mv);
1213 }
1214 } else {
1215 183 mvinfo->mvref = MVREF_REF0ANDBREF;
1216 183 read_mv(gb, &mvinfo->f_mv);
1217 183 read_mv(gb, &mvinfo->b_mv);
1218 }
1219 }
1220 1998 }
1221
1222 #define FILTER1(src, src_stride, src_y_ofs, step) \
1223 ( (src)[(y + src_y_ofs)*(src_stride) + x - 2*step] \
1224 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x - 1*step] \
1225 +52 * (src)[(y + src_y_ofs)*(src_stride) + x ] \
1226 +20 * (src)[(y + src_y_ofs)*(src_stride) + x + 1*step] \
1227 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x + 2*step] \
1228 + (src)[(y + src_y_ofs)*(src_stride) + x + 3*step] + 32) >> 6
1229
1230 #define FILTER2(src, src_stride, src_y_ofs, step) \
1231 ( (src)[(y + src_y_ofs)*(src_stride) + x - 2*step] \
1232 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x - 1*step] \
1233 +20 * (src)[(y + src_y_ofs)*(src_stride) + x ] \
1234 +20 * (src)[(y + src_y_ofs)*(src_stride) + x + 1*step] \
1235 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x + 2*step] \
1236 + (src)[(y + src_y_ofs)*(src_stride) + x + 3*step] + 16) >> 5
1237
1238 #define FILTER3(src, src_stride, src_y_ofs, step) \
1239 ( (src)[(y + src_y_ofs)*(src_stride) + x - 2*step] \
1240 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x - 1*step] \
1241 +20 * (src)[(y + src_y_ofs)*(src_stride) + x ] \
1242 +52 * (src)[(y + src_y_ofs)*(src_stride) + x + 1*step] \
1243 - 5 * (src)[(y + src_y_ofs)*(src_stride) + x + 2*step] \
1244 + (src)[(y + src_y_ofs)*(src_stride) + x + 3*step] + 32) >> 6
1245
1246 #define FILTER_CASE(idx, dst, dst_stride, filter, w, h) \
1247 case idx: \
1248 for (int y = 0; y < h; y++) \
1249 for (int x = 0; x < w; x++) \
1250 (dst)[y*dst_stride + x] = av_clip_uint8(filter); \
1251 break;
1252
1253 #define FILTER_BLOCK(dst, dst_stride, src, src_stride, src_y_ofs, w, h, cond, step) \
1254 switch (cond) { \
1255 FILTER_CASE(1, dst, dst_stride, FILTER1(src, src_stride, src_y_ofs, step), w, h) \
1256 FILTER_CASE(2, dst, dst_stride, FILTER2(src, src_stride, src_y_ofs, step), w, h) \
1257 FILTER_CASE(3, dst, dst_stride, FILTER3(src, src_stride, src_y_ofs, step), w, h) \
1258 }
1259
1260 4117 static void luma_mc(uint8_t * dst, int dst_stride, const uint8_t * src, int src_stride, int w, int h, int cx, int cy)
1261 {
1262
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 4117 if (!cx && !cy) {
1263
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 51461 for (int y = 0; y < h; y++)
1264 47344 memcpy(dst + y*dst_stride, src + y*src_stride, w);
1265 ✗ } else if (!cy) {
1266 ✗ FILTER_BLOCK(dst, dst_stride, src, src_stride, 0, w, h, cx, 1)
1267 ✗ } else if (!cx) {
1268 ✗ FILTER_BLOCK(dst, dst_stride, src, src_stride, 0, w, h, cy, src_stride)
1269 ✗ } else if (cx != 3 || cy != 3) {
1270 uint8_t tmp[70 * 64];
1271 ✗ FILTER_BLOCK(tmp, 64, src - src_stride * 2, src_stride, 0, w, h + 5, cx, 1)
1272 ✗ FILTER_BLOCK(dst, dst_stride, tmp + 2*64, 64, 0, w, h, cy, 64)
1273 } else {
1274 ✗ for (int j = 0; j < h; j++)
1275 ✗ for (int i = 0; i < w; i++)
1276 ✗ dst[j*dst_stride + i] = (
1277 ✗ src[j*src_stride + i] +
1278 ✗ src[j*src_stride + i + 1] +
1279 ✗ src[(j + 1)*src_stride + i] +
1280 ✗ src[(j + 1)*src_stride + i + 1] + 2) >> 2;
1281 }
1282 4117 }
1283
1284 8234 static void chroma_mc(uint8_t * dst, int dst_stride, const uint8_t * src, int src_stride, int w, int h, int x, int y)
1285 {
1286
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 8234 if (!x && !y) {
1287
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 51648 for (int j = 0; j < h; j++)
1288 44208 memcpy(dst + j*dst_stride, src + j*src_stride, w);
1289
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 876 } else if (x > 0 && y > 0) {
1290 int a, b, c, d;
1291
1292
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 82 if (x == 3 && y == 3)
1293 ✗ y = 2; //reproduce bug in rv60 decoder. tested with realplayer version 18.1.7.344 and 22.0.0.321
1294
1295 82 a = (4 - x) * (4 - y);
1296 82 b = x * (4 - y);
1297 82 c = (4 - x) * y;
1298 82 d = x * y;
1299
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 382 for (int j = 0; j < h; j++)
1300
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 1404 for (int i = 0; i < w; i++)
1301 1104 dst[j*dst_stride + i] =
1302 1104 (a * src[j*src_stride + i] +
1303 1104 b * src[j*src_stride + i + 1] +
1304 1104 c * src[(j + 1)*src_stride + i] +
1305 1104 d * src[(j + 1)*src_stride + i + 1] + 8) >> 4;
1306 } else {
1307 712 int a = (4 - x) * (4 - y);
1308 712 int e = x * (4 - y) + (4 - x) * y;
1309
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 712 int step = y > 0 ? src_stride : 1;
1310
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 3548 for (int j = 0; j < h; j++)
1311
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 17348 for (int i = 0; i < w; i++)
1312 14512 dst[j*dst_stride + i] =
1313 14512 (a * src[j*src_stride + i] +
1314 14512 e * src[j*src_stride + i + step] + 8) >> 4;
1315 }
1316 8234 }
1317
1318 12351 static int check_pos(int x, int y, int cw, int ch, int w, int h, int dx, int dy, int e0, int e1, int e2, int e3)
1319 {
1320 12351 int x2 = x + dx;
1321 12351 int y2 = y + dy;
1322
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 12351 return x2 - e0 >= 0 && x2 + cw + e1 <= w && y2 - e2 >= 0 && y2 + ch + e3 <= h;
1323 }
1324
1325 4117 static void mc(RV60Context * s, uint8_t * frame_data[3], int frame_linesize[3], const AVFrame * ref, int x, int y, int w, int h, MV mv, int avg)
1326 {
1327 {
1328
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 4117 int off = !avg ? y * frame_linesize[0] + x : 0;
1329 4117 int fw = s->awidth;
1330 4117 int fh = s->aheight;
1331 4117 int dx = mv.x >> 2;
1332 4117 int cx = mv.x & 3;
1333 4117 int dy = mv.y >> 2;
1334 4117 int cy = mv.y & 3;
1335
1336
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 4117 if (check_pos(x, y, w, h, fw, fh, dx, dy, rv60_edge1[cx], rv60_edge2[cx], rv60_edge1[cy], rv60_edge2[cy])) {
1337 4041 luma_mc(
1338 4041 frame_data[0] + off,
1339 frame_linesize[0],
1340 4041 ref->data[0] + (y + dy) * ref->linesize[0] + x + dx,
1341 4041 ref->linesize[0],
1342 w, h, cx, cy);
1343 } else {
1344 uint8_t buf[70*70];
1345 76 int xoff = x + dx - 2;
1346 76 int yoff = y + dy - 2;
1347 76 s->vdsp.emulated_edge_mc(buf,
1348 76 ref->data[0] + yoff * ref->linesize[0] + xoff,
1349 76 70, ref->linesize[0],
1350 w + 5, h + 5,
1351 xoff, yoff,
1352 fw, fh);
1353
1354 76 luma_mc(frame_data[0] + off, frame_linesize[0],
1355 buf + 70 * 2 + 2, 70, w, h, cx, cy);
1356 }
1357 }
1358 {
1359 4117 int fw = s->awidth >> 1;
1360 4117 int fh = s->aheight >> 1;
1361 4117 int mvx = mv.x / 2;
1362 4117 int mvy = mv.y / 2;
1363 4117 int dx = mvx >> 2;
1364 4117 int cx = mvx & 3;
1365 4117 int dy = mvy >> 2;
1366 4117 int cy = mvy & 3;
1367 4117 int cw = w >> 1;
1368 4117 int ch = h >> 1;
1369
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 12351 for (int plane = 1; plane < 3; plane++) {
1371
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 8234 int off = !avg ? (y >> 1) * frame_linesize[plane] + (x >> 1) : 0;
1372
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 8234 if (check_pos(x >> 1, y >> 1, cw, ch, fw, fh, dx, dy, 0, 1, 0, 1)) {
1373 7310 chroma_mc(
1374 7310 frame_data[plane] + off,
1375 7310 frame_linesize[plane],
1376 7310 ref->data[plane] + ((y >> 1) + dy) * ref->linesize[plane] + (x >> 1) + dx,
1377 7310 ref->linesize[plane],
1378 cw, ch, cx, cy);
1379 } else {
1380 uint8_t buf[40*40];
1381 924 s->vdsp.emulated_edge_mc(buf,
1382 924 ref->data[plane] + ((y >> 1) + dy) * ref->linesize[plane] + (x >> 1) + dx,
1383 924 40, ref->linesize[plane],
1384 cw + 1, ch + 1,
1385 924 (x >> 1) + dx, (y >> 1) + dy,
1386 fw, fh);
1387 924 chroma_mc(frame_data[plane] + off, frame_linesize[plane], buf, 40, cw, ch, cx, cy);
1388 }
1389 }
1390 }
1391 4117 }
1392
1393 921 static void avg_plane(uint8_t * dst, int dst_stride, const uint8_t * src, int src_stride, int w, int h)
1394 {
1395
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 7913 for (int j = 0; j < h; j++)
1396
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 101936 for (int i = 0; i < w; i++)
1397 94944 dst[j*dst_stride + i] = (dst[j*dst_stride + i] + src[j*src_stride + i]) >> 1;
1398 921 }
1399
1400 307 static void avg(AVFrame * frame, uint8_t * prev_frame_data[3], int prev_frame_linesize[3], int x, int y, int w, int h)
1401 {
1402
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 1228 for (int plane = 0; plane < 3; plane++) {
1403 921 int shift = !plane ? 0 : 1;
1404 921 avg_plane(frame->data[plane] + (y >> shift) * frame->linesize[plane] + (x >> shift), frame->linesize[plane],
1405 921 prev_frame_data[plane], prev_frame_linesize[plane],
1406 w >> shift, h >> shift);
1407 }
1408 307 }
1409
1410 2253 static int get_c4x4_set(int qp, int is_intra)
1411 {
1412
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 2253 if (is_intra)
1413 1166 return rv60_qp_to_idx[qp + 32];
1414 else
1415 1087 return rv60_qp_to_idx[qp];
1416 }
1417
1418 137688 static int quant(int v, int q)
1419 {
1420 137688 return (v * q + 8) >> 4;
1421 }
1422
1423 137688 static int decode_coeff(GetBitContext * gb, const CoeffVLCs * vlcs, int inval, int val)
1424 {
1425 int esc_sym;
1426
1427
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 137688 if (inval != val)
1428
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 73186 return inval && get_bits1(gb) ? -inval : inval;
1429
1430 64502 esc_sym = get_vlc2(gb, vlcs->esc, 9, 2);
1431
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 64502 if (esc_sym > 23) {
1432 2214 int esc_bits = esc_sym - 23;
1433 2214 val += (1 << esc_bits) + get_bits(gb, esc_bits) + 22;
1434 } else
1435 62288 val += esc_sym;
1436
1437
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 64502 return get_bits1(gb) ? -val : val;
1438 }
1439
1440 4396 static void decode_2x2_dc(GetBitContext * gb, const CoeffVLCs * vlcs, int16_t * coeffs, int stride, int block2, int dsc, int q_dc, int q_ac)
1441 {
1442 const uint8_t * lx;
1443
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 4396 if (!dsc)
1444 ✗ return;
1445
1446 4396 lx = rv60_dsc_to_lx[dsc - 1];
1447
1448 4396 coeffs[0] = quant(decode_coeff(gb, vlcs, lx[0], 3), q_dc);
1449
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 4396 if (!block2) {
1450 4396 coeffs[1] = quant(decode_coeff(gb, vlcs, lx[1], 2), q_ac);
1451 4396 coeffs[stride] = quant(decode_coeff(gb, vlcs, lx[2], 2), q_ac);
1452 } else {
1453 ✗ coeffs[stride] = quant(decode_coeff(gb, vlcs, lx[1], 2), q_ac);
1454 ✗ coeffs[1] = quant(decode_coeff(gb, vlcs, lx[2], 2), q_ac);
1455 }
1456 4396 coeffs[stride + 1] = quant(decode_coeff(gb, vlcs, lx[3], 2), q_ac);
1457 }
1458
1459 30026 static void decode_2x2(GetBitContext * gb, const CoeffVLCs * vlcs, int16_t * coeffs, int stride, int block2, int dsc, int q_ac)
1460 {
1461 const uint8_t * lx;
1462
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 30026 if (!dsc)
1463 ✗ return;
1464
1465 30026 lx = rv60_dsc_to_lx[dsc - 1];
1466
1467 30026 coeffs[0] = quant(decode_coeff(gb, vlcs, lx[0], 3), q_ac);
1468
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 30026 if (!block2) {
1469 22293 coeffs[1] = quant(decode_coeff(gb, vlcs, lx[1], 2), q_ac);
1470 22293 coeffs[stride] = quant(decode_coeff(gb, vlcs, lx[2], 2), q_ac);
1471 } else {
1472 7733 coeffs[stride] = quant(decode_coeff(gb, vlcs, lx[1], 2), q_ac);
1473 7733 coeffs[1] = quant(decode_coeff(gb, vlcs, lx[2], 2), q_ac);
1474 }
1475 30026 coeffs[stride + 1] = quant(decode_coeff(gb, vlcs, lx[3], 2), q_ac);
1476 }
1477
1478 4548 static void decode_4x4_block_dc(GetBitContext * gb, const CoeffVLCs * vlcs, int is_luma, int16_t * coeffs, int stride, int q_dc, int q_ac)
1479 {
1480 4548 int sym0 = get_vlc2(gb, vlcs->l0[!is_luma], 9, 2);
1481 4548 int grp0 = sym0 >> 3;
1482
1483
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 4548 if (grp0)
1484 4396 decode_2x2_dc(gb, vlcs, coeffs, stride, 0, grp0, q_dc, q_ac);
1485
1486
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 4548 if (sym0 & 4) {
1487 3242 int grp = get_vlc2(gb, vlcs->l12[!is_luma], 9, 2);
1488 3242 decode_2x2(gb, vlcs, coeffs + 2, stride, 0, grp, q_ac);
1489 }
1490
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 4548 if (sym0 & 2) {
1491 2779 int grp = get_vlc2(gb, vlcs->l12[!is_luma], 9, 2);
1492 2779 decode_2x2(gb, vlcs, coeffs + 2*stride, stride, 1, grp, q_ac);
1493 }
1494
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 4548 if (sym0 & 1) {
1495 2478 int grp = get_vlc2(gb, vlcs->l3[!is_luma], 9, 2);
1496 2478 decode_2x2(gb, vlcs, coeffs + 2*stride + 2, stride, 0, grp, q_ac);
1497 }
1498 4548 }
1499
1500 7219 static void decode_4x4_block(GetBitContext * gb, const CoeffVLCs * vlcs, int is_luma, int16_t * coeffs, int stride, int q_ac)
1501 {
1502 7219 int sym0 = get_vlc2(gb, vlcs->l0[!is_luma], 9, 2);
1503 7219 int grp0 = (sym0 >> 3);
1504
1505
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 7219 if (grp0)
1506 6761 decode_2x2(gb, vlcs, coeffs, stride, 0, grp0, q_ac);
1507
1508
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 7219 if (sym0 & 4) {
1509 5569 int grp = get_vlc2(gb, vlcs->l12[!is_luma], 9, 2);
1510 5569 decode_2x2(gb, vlcs, coeffs + 2, stride, 0, grp, q_ac);
1511 }
1512
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 7219 if (sym0 & 2) {
1513 4954 int grp = get_vlc2(gb, vlcs->l12[!is_luma], 9, 2);
1514 4954 decode_2x2(gb, vlcs, coeffs + 2*stride, stride, 1, grp, q_ac);
1515 }
1516
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 7219 if (sym0 & 1) {
1517 4243 int grp = get_vlc2(gb, vlcs->l3[!is_luma], 9, 2);
1518 4243 decode_2x2(gb, vlcs, coeffs + 2*stride + 2, stride, 0, grp, q_ac);
1519 }
1520 7219 }
1521
1522 139 static void decode_cu_4x4in16x16(GetBitContext * gb, int is_intra, int qp, int sel_qp, int16_t * y_coeffs, int16_t * u_coeffs, int16_t * v_coeffs, int cbp)
1523 {
1524 139 int cb_set = get_c4x4_set(sel_qp, is_intra);
1525
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 139 const CoeffVLCs * vlc = is_intra ? &intra_coeff_vlc[cb_set] : &inter_coeff_vlc[cb_set];
1526 139 int q_y = rv60_quants_b[qp];
1527 139 int q_c_dc = rv60_quants_b[rv60_chroma_quant_dc[qp]];
1528 139 int q_c_ac = rv60_quants_b[rv60_chroma_quant_ac[qp]];
1529
1530 139 memset(y_coeffs, 0, sizeof(y_coeffs[0])*256);
1531
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 2363 for (int i = 0; i < 16; i++)
1532
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 2224 if ((cbp >> i) & 1)
1533 979 decode_4x4_block(gb, vlc, 1, y_coeffs + i * 16 , 4, q_y);
1534
1535 139 memset(u_coeffs, 0, sizeof(u_coeffs[0])*64);
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 695 for (int i = 0; i < 4; i++)
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 556 if ((cbp >> (16 + i)) & 1)
1538 341 decode_4x4_block_dc(gb, vlc, 0, u_coeffs + i * 16, 4, q_c_dc, q_c_ac);
1539
1540 139 memset(v_coeffs, 0, sizeof(v_coeffs[0])*64);
1541
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 695 for (int i = 0; i < 4; i++)
1542
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 556 if ((cbp >> (20 + i)) & 1)
1543 335 decode_4x4_block_dc(gb, vlc, 0, v_coeffs + i * 16, 4, q_c_dc, q_c_ac);
1544 139 }
1545
1546 2387 static int decode_cbp8(GetBitContext * gb, int subset, int qp)
1547 {
1548 2387 int cb_set = rv60_qp_to_idx[qp];
1549 2387 return get_vlc2(gb, cbp8_vlc[cb_set][subset], 9, 2);
1550 }
1551
1552 1901 static void decode_cu_8x8(GetBitContext * gb, int is_intra, int qp, int sel_qp, int16_t * y_coeffs, int16_t * u_coeffs, int16_t * v_coeffs, int ccbp, int mode4x4)
1553 {
1554 1901 int cb_set = get_c4x4_set(sel_qp, is_intra);
1555
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 1901 const CoeffVLCs * vlc = is_intra ? &intra_coeff_vlc[cb_set] : &inter_coeff_vlc[cb_set];
1556 1901 int q_y = rv60_quants_b[qp];
1557 1901 int q_c_dc = rv60_quants_b[rv60_chroma_quant_dc[qp]];
1558 1901 int q_c_ac = rv60_quants_b[rv60_chroma_quant_ac[qp]];
1559
1560 1901 memset(y_coeffs, 0, sizeof(y_coeffs[0])*64);
1561
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 9505 for (int i = 0; i < 4; i++) {
1562
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 7604 if ((ccbp >> i) & 1) {
1563 int offset, stride;
1564
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 4514 if (mode4x4) {
1565 2468 offset = i*16;
1566 2468 stride = 4;
1567 } else {
1568 2046 offset = (i & 1) * 4 + (i & 2) * 2 * 8;
1569 2046 stride = 8;
1570 }
1571 4514 decode_4x4_block(gb, vlc, 1, y_coeffs + offset, stride, q_y);
1572 }
1573 }
1574
1575
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 1901 if ((ccbp >> 4) & 1) {
1576 1741 memset(u_coeffs, 0, sizeof(u_coeffs[0])*16);
1577 1741 decode_4x4_block_dc(gb, vlc, 0, u_coeffs, 4, q_c_dc, q_c_ac);
1578 }
1579
1580
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 1901 if ((ccbp >> 5) & 1) {
1581 1778 memset(v_coeffs, 0, sizeof(u_coeffs[0])*16);
1582 1778 decode_4x4_block_dc(gb, vlc, 0, v_coeffs, 4, q_c_dc, q_c_ac);
1583 }
1584 1901 }
1585
1586 213 static void decode_cu_16x16(GetBitContext * gb, int is_intra, int qp, int sel_qp, int16_t * y_coeffs, int16_t * u_coeffs, int16_t * v_coeffs, int ccbp)
1587 {
1588 213 int cb_set = get_c4x4_set(sel_qp, is_intra);
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 213 const CoeffVLCs * vlc = is_intra ? &intra_coeff_vlc[cb_set] : &inter_coeff_vlc[cb_set];
1590 213 int q_y = rv60_quants_b[qp];
1591 213 int q_c_dc = rv60_quants_b[rv60_chroma_quant_dc[qp]];
1592 213 int q_c_ac = rv60_quants_b[rv60_chroma_quant_ac[qp]];
1593
1594 213 memset(y_coeffs, 0, sizeof(y_coeffs[0])*256);
1595
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 3621 for (int i = 0; i < 16; i++)
1596
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 3408 if ((ccbp >> i) & 1) {
1597 1230 int off = (i & 3) * 4 + (i >> 2) * 4 * 16;
1598 1230 decode_4x4_block(gb, vlc, 1, y_coeffs + off, 16, q_y);
1599 }
1600
1601 213 memset(u_coeffs, 0, sizeof(u_coeffs[0])*64);
1602
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 1065 for (int i = 0; i < 4; i++)
1603
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 852 if ((ccbp >> (16 + i)) & 1) {
1604 428 int off = (i & 1) * 4 + (i & 2) * 2 * 8;
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 428 if (!i)
1606 161 decode_4x4_block_dc(gb, vlc, 0, u_coeffs + off, 8, q_c_dc, q_c_ac);
1607 else
1608 267 decode_4x4_block(gb, vlc, 0, u_coeffs + off, 8, q_c_ac);
1609 }
1610
1611 213 memset(v_coeffs, 0, sizeof(v_coeffs[0])*64);
1612
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 1065 for (int i = 0; i < 4; i++)
1613
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 852 if ((ccbp >> (20 + i)) & 1) {
1614 421 int off = (i & 1) * 4 + (i & 2) * 2 * 8;
1615
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 421 if (!i)
1616 192 decode_4x4_block_dc(gb, vlc, 0, v_coeffs + off, 8, q_c_dc, q_c_ac);
1617 else
1618 229 decode_4x4_block(gb, vlc, 0, v_coeffs + off, 8, q_c_ac);
1619 }
1620 213 }
1621
1622 352 static int decode_super_cbp(GetBitContext * gb, const VLCElem * vlc[4])
1623 {
1624 352 int sym0 = get_vlc2(gb, vlc[0], 9, 2);
1625 352 int sym1 = get_vlc2(gb, vlc[1], 9, 2);
1626 352 int sym2 = get_vlc2(gb, vlc[2], 9, 2);
1627 352 int sym3 = get_vlc2(gb, vlc[3], 9, 2);
1628 return 0
1629 352 + ((sym0 & 0x03) << 0)
1630 352 + ((sym0 & 0x0C) << 2)
1631 352 + ((sym0 & 0x10) << 12)
1632 352 + ((sym0 & 0x20) << 15)
1633 352 + ((sym1 & 0x03) << 2)
1634 352 + ((sym1 & 0x0C) << 4)
1635 352 + ((sym1 & 0x10) << 13)
1636 352 + ((sym1 & 0x20) << 16)
1637 352 + ((sym2 & 0x03) << 8)
1638 352 + ((sym2 & 0x0C) << 10)
1639 352 + ((sym2 & 0x10) << 14)
1640 352 + ((sym2 & 0x20) << 17)
1641 352 + ((sym3 & 0x03) << 10)
1642 352 + ((sym3 & 0x0C) << 12)
1643 352 + ((sym3 & 0x10) << 15)
1644 352 + ((sym3 & 0x20) << 18);
1645 }
1646
1647 352 static int decode_cbp16(GetBitContext * gb, int subset, int qp)
1648 {
1649 352 int cb_set = rv60_qp_to_idx[qp];
1650
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 352 if (!subset)
1651 ✗ return decode_super_cbp(gb, cbp8_vlc[cb_set]);
1652 else
1653 352 return decode_super_cbp(gb, cbp16_vlc[cb_set][subset - 1]);
1654 }
1655
1656 7524 static int decode_cu_r(RV60Context * s, AVFrame * frame, ThreadContext * thread, GetBitContext * gb, int xpos, int ypos, int log_size, int qp, int sel_qp)
1657 {
1658 7524 int size = 1 << log_size;
1659 int split, ret, ttype, count, is_intra, cu_pos, subset, cbp8, imode, split_i4x4, num_clusters, cl_cbp, super_cbp, mv_x, mv_y, mv_pos;
1660 int16_t y_coeffs[16*16], u_coeffs[8*8], v_coeffs[8*8];
1661 CUContext cu;
1662
1663
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 7524 if (xpos >= s->awidth || ypos >= s->aheight)
1664 630 return 0;
1665
1666
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 6894 split = xpos + size > s->awidth || ypos + size > s->aheight || (size > 8 && get_bits1(gb));
1667 6894 thread->cu_split[thread->cu_split_pos++] = split;
1668
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 6894 if (split) {
1669 1782 size >>= 1;
1670 1782 log_size -= 1;
1671
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 3564 if ((ret = decode_cu_r(s, frame, thread, gb, xpos, ypos, log_size, qp, sel_qp)) < 0 ||
1672
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 3564 (ret = decode_cu_r(s, frame, thread, gb, xpos + size, ypos, log_size, qp, sel_qp)) < 0 ||
1673
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 3564 (ret = decode_cu_r(s, frame, thread, gb, xpos, ypos + size, log_size, qp, sel_qp)) < 0 ||
1674 1782 (ret = decode_cu_r(s, frame, thread, gb, xpos + size, ypos + size, log_size, qp, sel_qp)) < 0)
1675 ✗ return ret;
1676 1782 return 0;
1677 }
1678
1679 5112 cu.xpos = xpos;
1680 5112 cu.ypos = ypos;
1681 5112 cu.pu_pos = (xpos >> 3) + (ypos >> 3) * s->pu_stride;
1682 5112 cu.blk_pos = (xpos >> 2) + (ypos >> 2) * s->blk_stride;
1683
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 5112 cu.cu_type = s->pict_type != AV_PICTURE_TYPE_I ? get_bits(gb, 2) : CU_INTRA;
1684
1685
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 5112 switch (cu.cu_type) {
1686 2293 case CU_INTRA:
1687
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 2293 cu.pu_type = size == 8 && get_bits1(gb) ? PU_QUARTERS : PU_FULL;
1688
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 2293 if (cu.pu_type == PU_QUARTERS)
1689
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 3590 for (int i = 0; i < 4; i++)
1690 2872 cu.imode[i] = read_intra_mode(gb, &cu.imode_param[i]);
1691
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 1575 else if (size <= 32)
1692 1575 cu.imode[0] = read_intra_mode(gb, &cu.imode_param[0]);
1693 else
1694 ✗ cu.imode[0] = get_bits1(gb) ? INTRAMODE_PLANE64 : INTRAMODE_DC64;
1695 2293 break;
1696 1007 case CU_INTER_MV:
1697
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 1007 cu.pu_type = get_bits(gb, size == 8 ? 2 : 3);
1698 1007 count = pu_type_num_parts(cu.pu_type);
1699
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 3005 for (int i = 0; i < count; i++)
1700 1998 read_mv_info(s, gb, &cu.mv[i], size, cu.pu_type);
1701 1007 break;
1702 1812 default:
1703 1812 cu.pu_type = PU_FULL;
1704 1812 cu.mv[0].mvref = skip_mv_ref[get_unary(gb, 0, 3)];
1705 1812 break;
1706 }
1707
1708 5112 reconstruct(s, &cu, size);
1709
1710
6/6
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 5112 split_i4x4 = cu.cu_type == CU_INTRA && size == 8 && cu.pu_type == PU_QUARTERS;
1711
1712
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 5112 switch (cu.cu_type) {
1713 2293 case CU_INTRA:
1714 2293 imode = s->blk_info[cu.blk_pos].imode;
1715
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 2293 if (!split_i4x4) {
1716 1575 int off = ypos * frame->linesize[0] + xpos;
1717 1575 populate_ipred(s, &cu, frame->data[0], frame->linesize[0], 0, 0, size, 1);
1718
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 1575 if (pred_angle(&cu.ipred, frame->data[0] + off, frame->linesize[0], size, imode, 1) < 0)
1719 ✗ return AVERROR_INVALIDDATA;
1720 }
1721
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 6879 for (int plane = 1; plane < 3; plane++) {
1722 4586 int off = (ypos >> 1) * frame->linesize[plane] + (xpos >> 1);
1723 4586 populate_ipred(s, &cu, frame->data[plane], frame->linesize[plane], 0, 0, size >> 1, 0);
1724
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 4586 if (pred_angle(&cu.ipred, frame->data[plane] + off, frame->linesize[plane], size >> 1, imode, 0) < 0)
1725 ✗ return AVERROR_INVALIDDATA;
1726 }
1727 2293 break;
1728 2819 default:
1729 2819 mv_x = xpos >> 2;
1730 2819 mv_y = ypos >> 2;
1731 2819 mv_pos = mv_y * s->blk_stride + mv_x;
1732 2819 count = pu_type_num_parts(cu.pu_type);
1733
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 6629 for (int part_no = 0; part_no < count; part_no++) {
1734 MVInfo mv;
1735 Dimensions dim;
1736 int bw, bh, bx, by;
1737
1738 3810 mv = s->blk_info[mv_pos].mv;
1739 3810 get_mv_dimensions(&dim, cu.pu_type, part_no, size);
1740 3810 bw = dim.w << 2;
1741 3810 bh = dim.h << 2;
1742 3810 bx = mv_x << 2;
1743 3810 by = mv_y << 2;
1744
1745
4/5
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 3810 switch (mv.mvref) {
1746 2418 case MVREF_REF0:
1747 2418 mc(s, frame->data, frame->linesize, s->last_frame[LAST_PIC], bx, by, bw, bh, mv.f_mv, 0);
1748 2418 break;
1749 207 case MVREF_REF1:
1750
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 207 if (!s->last_frame[NEXT_PIC]->data[0]) {
1751 ✗ av_log(s->avctx, AV_LOG_ERROR, "missing reference frame\n");
1752 ✗ return AVERROR_INVALIDDATA;
1753 }
1754 207 mc(s, frame->data, frame->linesize, s->last_frame[NEXT_PIC], bx, by, bw, bh, mv.f_mv, 0);
1755 207 break;
1756 878 case MVREF_BREF:
1757 878 mc(s, frame->data, frame->linesize, s->last_frame[NEXT_PIC], bx, by, bw, bh, mv.b_mv, 0);
1758 878 break;
1759 307 case MVREF_REF0ANDBREF:
1760 307 mc(s, frame->data, frame->linesize, s->last_frame[LAST_PIC], bx, by, bw, bh, mv.f_mv, 0);
1761 307 mc(s, thread->avg_data, thread->avg_linesize, s->last_frame[NEXT_PIC], bx, by, bw, bh, mv.b_mv, 1);
1762 307 avg(frame, thread->avg_data, thread->avg_linesize, bx, by, bw, bh);
1763 307 break;
1764 ✗ default:
1765 ✗ av_assert0(0); //should never reach here
1766 }
1767 3810 get_next_mv(s, &dim, cu.pu_type, part_no, &mv_pos, &mv_x, &mv_y);
1768 }
1769 2819 break;
1770 }
1771
1772
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 5112 if (cu.cu_type == CU_SKIP)
1773 1639 ttype = TRANSFORM_NONE;
1774
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 3473 else if (size >= 32)
1775 28 ttype = TRANSFORM_16X16;
1776
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 3445 else if (size == 16)
1777
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 1058 ttype = cu.cu_type == CU_INTRA || cu.pu_type == PU_FULL ? TRANSFORM_16X16 : TRANSFORM_4X4;
1778 else
1779
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 2387 ttype = cu.pu_type == PU_FULL ? TRANSFORM_8X8 : TRANSFORM_4X4;
1780
1781 5112 is_intra = cu.cu_type == CU_INTRA;
1782 5112 cu_pos = ((xpos & 63) >> 3) + ((ypos & 63) >> 3) * 8;
1783
1784
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 5112 switch (ttype) {
1785 1165 case TRANSFORM_4X4:
1786
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 1165 subset = is_intra ? 0 : 2;
1787
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 1165 if (size == 16) {
1788
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 148 int cbp16 = get_bits1(gb) ? decode_cbp16(gb, subset, sel_qp) : 0;
1789
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 148 if (cbp16) {
1790 139 decode_cu_4x4in16x16(gb, is_intra, qp, sel_qp, y_coeffs, u_coeffs, v_coeffs, cbp16);
1791
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 695 for (int y = 0; y < 4; y++)
1792
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 2780 for (int x = 0; x < 4; x++) {
1793 2224 int i = y*4 + x;
1794
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 2224 if ((cbp16 >> i) & 1) {
1795 979 int off = (ypos + y * 4)*frame->linesize[0] + xpos + x * 4;
1796 979 ff_rv60_idct4x4_add(y_coeffs + i*16, frame->data[0] + off, frame->linesize[0]);
1797 979 thread->coded_blk[cu_pos + (y/2)*8 + (x/2)] = 1;
1798 }
1799 }
1800
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 417 for (int y = 0; y < 2; y++)
1801
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 834 for (int x = 0; x < 2; x++) {
1802 556 int i = y * 2 + x;
1803 556 int xoff = (xpos >> 1) + x * 4;
1804 556 int yoff = (ypos >> 1) + y * 4;
1805
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 556 if ((cbp16 >> (16 + i)) & 1) {
1806 341 int off = yoff * frame->linesize[1] + xoff;
1807 341 ff_rv60_idct4x4_add(u_coeffs + i * 16, frame->data[1] + off, frame->linesize[1]);
1808 341 thread->coded_blk[cu_pos + y*8 + x] = 1;
1809 }
1810
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 556 if ((cbp16 >> (20 + i)) & 1) {
1811 335 int off = yoff * frame->linesize[2] + xoff;
1812 335 ff_rv60_idct4x4_add(v_coeffs + i * 16, frame->data[2] + off, frame->linesize[2]);
1813 335 thread->coded_blk[cu_pos + y*8 + x] = 1;
1814 }
1815 }
1816 }
1817 } else {
1818 1017 cbp8 = decode_cbp8(gb, subset, sel_qp);
1819
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 1017 if (cbp8) {
1820 967 thread->coded_blk[cu_pos] = 1;
1821 967 decode_cu_8x8(gb, is_intra, qp, sel_qp, y_coeffs, u_coeffs, v_coeffs, cbp8, 1);
1822 }
1823
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 5085 for (int i = 0; i < 4; i++) {
1824 4068 int xoff = (i & 1) << 2;
1825 4068 int yoff = (i & 2) << 1;
1826
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 4068 if (split_i4x4) {
1827 2872 int off = (ypos + yoff) * frame->linesize[0] + xpos + xoff;
1828 2872 int imode = s->blk_info[cu.blk_pos + (i >> 1) * s->blk_stride + (i & 1)].imode;
1829 2872 populate_ipred(s, &cu, frame->data[0], frame->linesize[0], xoff, yoff, 4, 1);
1830
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 2872 if (pred_angle(&cu.ipred, frame->data[0] + off, frame->linesize[0], 4, imode, 1) < 0)
1831 ✗ return AVERROR_INVALIDDATA;
1832 }
1833
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 4068 if ((cbp8 >> i) & 1) {
1834 2468 int off = (ypos + yoff) * frame->linesize[0] + xpos + xoff;
1835 2468 ff_rv60_idct4x4_add(y_coeffs + i * 16, frame->data[0] + off, frame->linesize[0]);
1836 }
1837 }
1838
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 1017 if ((cbp8 >> 4) & 1) {
1839 935 int off = (ypos >> 1) * frame->linesize[1] + (xpos >> 1);
1840 935 ff_rv60_idct4x4_add(u_coeffs, frame->data[1] + off, frame->linesize[1]);
1841 }
1842
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 1017 if ((cbp8 >> 5) & 1) {
1843 936 int off = (ypos >> 1) * frame->linesize[2] + (xpos >> 1);
1844 936 ff_rv60_idct4x4_add(v_coeffs, frame->data[2] + off, frame->linesize[2]);
1845 }
1846 }
1847 1165 break;
1848 1370 case TRANSFORM_8X8:
1849
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 1370 subset = is_intra ? 1 : 3;
1850 1370 cbp8 = decode_cbp8(gb, subset, sel_qp);
1851
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 1370 if (cbp8) {
1852 934 thread->coded_blk[cu_pos] = 1;
1853 934 decode_cu_8x8(gb, is_intra, qp, sel_qp, y_coeffs, u_coeffs, v_coeffs, cbp8, 0);
1854
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 934 if (cbp8 & 0xF) {
1855 851 int off = ypos * frame->linesize[0] + xpos;
1856 851 ff_rv60_idct8x8_add(y_coeffs, frame->data[0] + off, frame->linesize[0]);
1857 }
1858
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 934 if ((cbp8 >> 4) & 1) {
1859 806 int off = (ypos >> 1) * frame->linesize[1] + (xpos >> 1);
1860 806 ff_rv60_idct4x4_add(u_coeffs, frame->data[1] + off, frame->linesize[1]);
1861 }
1862
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 934 if ((cbp8 >> 5) & 1) {
1863 842 int off = (ypos >> 1) * frame->linesize[2] + (xpos >> 1);
1864 842 ff_rv60_idct4x4_add(v_coeffs, frame->data[2] + off, frame->linesize[2]);
1865 }
1866 }
1867 1370 break;
1868 938 case TRANSFORM_16X16:
1869
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 938 subset = is_intra ? 1 : 3;
1870 938 num_clusters = size >> 4;
1871 938 cl_cbp = get_bits(gb, num_clusters * num_clusters);
1872
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 1904 for (int y = 0; y < num_clusters; y++) {
1873
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 1988 for (int x = 0; x < num_clusters; x++) {
1874
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 1022 if (!((cl_cbp >> (y*num_clusters + x)) & 1))
1875 809 continue;
1876 213 thread->coded_blk[cu_pos + y*2*8 + x*2 + 0] = 1;
1877 213 thread->coded_blk[cu_pos + y*2*8 + x*2 + 1] = 1;
1878 213 thread->coded_blk[cu_pos + y*2*8 + x*2 + 8] = 1;
1879 213 thread->coded_blk[cu_pos + y*2*8 + x*2 + 9] = 1;
1880 213 super_cbp = decode_cbp16(gb, subset, sel_qp);
1881
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 213 if (super_cbp) {
1882 213 decode_cu_16x16(gb, is_intra, qp, sel_qp, y_coeffs, u_coeffs, v_coeffs, super_cbp);
1883
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 213 if (super_cbp & 0xFFFF) {
1884 171 int off = (ypos + y * 16) * frame->linesize[0] + xpos + x * 16;
1885 171 ff_rv60_idct16x16_add(y_coeffs, frame->data[0] + off, frame->linesize[0]);
1886 }
1887
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 213 if ((super_cbp >> 16) & 0xF) {
1888 162 int off = ((ypos >> 1) + y * 8) * frame->linesize[1] + (xpos >> 1) + x * 8;
1889 162 ff_rv60_idct8x8_add(u_coeffs, frame->data[1] + off, frame->linesize[1]);
1890 }
1891
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 213 if ((super_cbp >> 20) & 0xF) {
1892 194 int off = ((ypos >> 1) + y * 8) * frame->linesize[2] + (xpos >> 1) + x * 8;
1893 194 ff_rv60_idct8x8_add(v_coeffs, frame->data[2] + off, frame->linesize[2]);
1894 }
1895 }
1896 }
1897 }
1898 938 break;
1899 }
1900
1901 5112 return 0;
1902 }
1903
1904 19711 static int deblock_get_pos(RV60Context * s, int xpos, int ypos)
1905 {
1906 19711 return (ypos >> 2) * s->dblk_stride + (xpos >> 2);
1907 }
1908
1909 7779 static void deblock_set_strength(RV60Context * s, int xpos, int ypos, int size, int q, int strength)
1910 {
1911 7779 int pos = deblock_get_pos(s, xpos, ypos);
1912 7779 int dsize = size >> 2;
1913 7779 int dval = (q << 2) + strength;
1914
1915
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 31407 for (int x = 0; x < dsize; x++) {
1916 23628 s->top_str[pos + x] = dval;
1917 23628 s->top_str[pos + (dsize - 1)*s->dblk_stride + x] = dval;
1918 }
1919
1920
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 31407 for (int y = 0; y < dsize; y++) {
1921 23628 s->left_str[pos + y*s->dblk_stride] = dval;
1922 23628 s->left_str[pos + y*s->dblk_stride + dsize - 1] = dval;
1923 }
1924 7779 }
1925
1926 13514 static int deblock_get_top_strength(const RV60Context * s, int pos)
1927 {
1928 13514 return s->top_str[pos] & 3;
1929 }
1930
1931 13716 static int deblock_get_left_strength(const RV60Context * s, int pos)
1932 {
1933 13716 return s->left_str[pos] & 3;
1934 }
1935
1936 1770 static void deblock_set_top_strength(RV60Context * s, int pos, int strength)
1937 {
1938 1770 s->top_str[pos] |= strength;
1939 1770 }
1940
1941 1216 static void deblock_set_left_strength(RV60Context * s, int pos, int strength)
1942 {
1943 1216 s->left_str[pos] |= strength;
1944 1216 }
1945
1946 4153 static void derive_deblock_strength(RV60Context * s, int xpos, int ypos, int size)
1947 {
1948 4153 int blk_pos = (ypos >> 2) * s->blk_stride + (xpos >> 2);
1949 4153 int dblk_pos = deblock_get_pos(s, xpos, ypos);
1950
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 4153 if (ypos > 0)
1951
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 17364 for (int i = 0; i < size; i++)
1952
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 13514 if (!deblock_get_top_strength(s, dblk_pos - s->dblk_stride + i) && mvinfo_is_deblock_cand(&s->blk_info[blk_pos + i].mv, &s->blk_info[blk_pos - s->blk_stride + i].mv))
1953 1770 deblock_set_top_strength(s, dblk_pos + i, 1);
1954
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 4153 if (xpos > 0)
1955
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 17621 for (int i = 0; i < size; i++)
1956
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 13716 if (!deblock_get_left_strength(s, dblk_pos + i *s->dblk_stride - 1) && mvinfo_is_deblock_cand(&s->blk_info[blk_pos + i*s->blk_stride].mv, &s->blk_info[blk_pos + i*s->blk_stride - 1].mv))
1957 1216 deblock_set_left_strength(s, dblk_pos + i *s->dblk_stride, 1);
1958 4153 }
1959
1960 #define STRENGTH(el, lim) (FFABS(el) < (lim) ? 3 : 1)
1961 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
1962
1963 23366 static void filter_luma_edge(uint8_t * dst, int step, int stride, int mode1, int mode2, int lim1, int lim2)
1964 {
1965 int16_t diff_q1q0[4];
1966 int16_t diff_p1p0[4];
1967 int str_p, str_q, msum, maxprod, weak;
1968
1969
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 116830 for (int i = 0; i < 4; i++) {
1970 93464 diff_q1q0[i] = dst[i * stride - 2*step] - dst[i*stride - step];
1971 93464 diff_p1p0[i] = dst[i * stride + step] - dst[i*stride];
1972 }
1973
1974
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 23366 str_p = STRENGTH(diff_q1q0[0] + diff_q1q0[1] + diff_q1q0[2] + diff_q1q0[3], lim2);
1975
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 23366 str_q = STRENGTH(diff_p1p0[0] + diff_p1p0[1] + diff_p1p0[2] + diff_p1p0[3], lim2);
1976
1977
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 23366 if (str_p + str_q <= 2)
1978 22045 return;
1979
1980 1321 msum = (mode1 + mode2 + str_q + str_p) >> 1;
1981
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 1321 if (str_q == 1 || str_p == 1) {
1982 102 maxprod = 384;
1983 102 weak = 1;
1984 } else {
1985 1219 maxprod = 256;
1986 1219 weak = 0;
1987 }
1988
1989
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 6605 for (int y = 0; y < 4; y++) {
1990 5284 int diff_p0q0 = dst[0] - dst[-step];
1991 5284 int result = (lim1 * FFABS(diff_p0q0)) & -128;
1992
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 5284 if (diff_p0q0 && result <= maxprod) {
1993 2011 int diff_q1q2 = dst[-2*step] - dst[-3*step];
1994 2011 int diff_p1p2 = dst[step] - dst[2*step];
1995 int delta;
1996
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 2011 if (weak) {
1997 126 delta = CLIP_SYMM((diff_p0q0 + 1) >> 1, msum >> 1);
1998 } else {
1999 1885 int diff_strg = (dst[-2*step] - dst[step] + 4 * diff_p0q0 + 4) >> 3;
2000 1885 delta = CLIP_SYMM(diff_strg, msum);
2001 }
2002 2011 dst[-step] = av_clip_uint8(dst[-step] + delta);
2003 2011 dst[0] = av_clip_uint8(dst[0] - delta);
2004
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 2011 if (str_p != 1 && FFABS(diff_q1q2) <= (lim2 >> 2)) {
2005 1253 int diff = (diff_q1q0[y] + diff_q1q2 - delta) >> 1;
2006
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 1253 int delta_q1 = weak ? CLIP_SYMM(diff, mode1 >> 1) : CLIP_SYMM(diff, mode1);
2007 1253 dst[-2 * step] = av_clip_uint8(dst[-2*step] - delta_q1);
2008 }
2009
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 2011 if (str_q != 1 && FFABS(diff_p1p2) <= (lim2 >> 2)) {
2010 1733 int diff = (diff_p1p0[y] + diff_p1p2 + delta) >> 1;
2011
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 1733 int delta_p1 = weak ? CLIP_SYMM(diff, mode2 >> 1) : CLIP_SYMM(diff, mode2);
2012 1733 dst[step] = av_clip_uint8(dst[step] - delta_p1);
2013 }
2014 }
2015 5284 dst += stride;
2016 }
2017 }
2018
2019 26792 static void filter_chroma_edge(uint8_t * dst, int step, int stride, int mode1, int mode2, int lim1, int lim2)
2020 {
2021 26792 int diff_q = 4 * FFABS(dst[-2*step] - dst[-step]);
2022 26792 int diff_p = 4 * FFABS(dst[ step] - dst[0]);
2023
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 26792 int str_q = STRENGTH(diff_q, lim2);
2024
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 26792 int str_p = STRENGTH(diff_p, lim2);
2025 int msum, maxprod, weak;
2026
2027
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 26792 if (str_p + str_q <= 2)
2028 26545 return;
2029
2030 247 msum = (mode1 + mode2 + str_q + str_p) >> 1;
2031
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 247 if (str_q == 1 || str_p == 1) {
2032 145 maxprod = 384;
2033 145 weak = 1;
2034 } else {
2035 102 maxprod = 256;
2036 102 weak = 0;
2037 }
2038
2039
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 741 for (int y = 0; y < 2; y++) {
2040 494 int diff_pq = dst[0] - dst[-step];
2041 494 int result = (lim1 * FFABS(diff_pq)) & -128;
2042
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 494 if (diff_pq && result <= maxprod) {
2043 int delta;
2044
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 195 if (weak) {
2045 111 delta = CLIP_SYMM((diff_pq + 1) >> 1, msum >> 1);
2046 } else {
2047 84 int diff_strg = (dst[-2*step] - dst[step] + 4 * diff_pq + 4) >> 3;
2048 84 delta = CLIP_SYMM(diff_strg, msum);
2049 }
2050 195 dst[-step] = av_clip_uint8(dst[-step] + delta);
2051 195 dst[ 0 ] = av_clip_uint8(dst[ 0 ] - delta);
2052 }
2053 494 dst += stride;
2054 }
2055 }
2056
2057 11120 static void deblock_edge_ver(AVFrame * frame, int xpos, int ypos, int dblk_l, int dblk_r, int deblock_chroma)
2058 {
2059 11120 int qp_l = dblk_l >> 2;
2060 11120 int str_l = dblk_l & 3;
2061 11120 int qp_r = dblk_r >> 2;
2062 11120 int str_r = dblk_r & 3;
2063 11120 const uint8_t * dl_l = rv60_deblock_limits[qp_l];
2064 11120 const uint8_t * dl_r = rv60_deblock_limits[qp_r];
2065
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 11120 int mode_l = str_l ? dl_l[str_l - 1] : 0;
2066
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 11120 int mode_r = str_r ? dl_r[str_r - 1] : 0;
2067 11120 int lim1 = dl_r[2];
2068 11120 int lim2 = dl_r[3] * 4;
2069
2070 11120 filter_luma_edge(frame->data[0] + ypos * frame->linesize[0] + xpos, 1, frame->linesize[0], mode_l, mode_r, lim1, lim2);
2071
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 11120 if ((str_l | str_r) >= 2 && deblock_chroma)
2072
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 19980 for (int plane = 1; plane < 3; plane++)
2073 13320 filter_chroma_edge(frame->data[plane] + (ypos >> 1) * frame->linesize[plane] + (xpos >> 1), 1, frame->linesize[plane], mode_l, mode_r, lim1, lim2);
2074 11120 }
2075
2076 12246 static void deblock_edge_hor(AVFrame * frame, int xpos, int ypos, int dblk_t, int dblk_d, int deblock_chroma)
2077 {
2078 12246 int qp_t = dblk_t >> 2;
2079 12246 int str_t = dblk_t & 3;
2080 12246 int qp_d = dblk_d >> 2;
2081 12246 int str_d = dblk_d & 3;
2082 12246 const uint8_t * dl_t = rv60_deblock_limits[qp_t];
2083 12246 const uint8_t * dl_d = rv60_deblock_limits[qp_d];
2084
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 12246 int mode_t = str_t ? dl_t[str_t - 1] : 0;
2085
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 12246 int mode_d = str_d ? dl_d[str_d - 1] : 0;
2086 12246 int lim1 = dl_d[2];
2087 12246 int lim2 = dl_d[3] * 4;
2088
2089 12246 filter_luma_edge(frame->data[0] + ypos * frame->linesize[0] + xpos, frame->linesize[0], 1, mode_t, mode_d, lim1, lim2);
2090
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 12246 if ((str_t | str_d) >= 2 && deblock_chroma)
2091
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 20208 for (int plane = 1; plane < 3; plane++)
2092 13472 filter_chroma_edge(frame->data[plane] + (ypos >> 1) * frame->linesize[plane] + (xpos >> 1), frame->linesize[plane], 1, mode_t, mode_d, lim1, lim2);
2093 12246 }
2094
2095 15849 static void deblock8x8(const RV60Context * s, AVFrame * frame, int xpos, int ypos, int dblkpos)
2096 {
2097
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 15849 if (xpos > 0) {
2098
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 15243 if (ypos > 0) {
2099 14676 int str_l = s->left_str[dblkpos - s->dblk_stride - 1];
2100 14676 int str_r = s->left_str[dblkpos - s->dblk_stride];
2101
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 14676 if ((str_l | str_r) & 3)
2102 5422 deblock_edge_ver(frame, xpos, ypos - 4, str_l, str_r, s->deblock_chroma);
2103 }
2104 {
2105 15243 int str_l = s->left_str[dblkpos - 1];
2106 15243 int str_r = s->left_str[dblkpos];
2107
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 15243 if ((str_l | str_r) & 3)
2108 5563 deblock_edge_ver(frame, xpos, ypos, str_l, str_r, s->deblock_chroma);
2109 }
2110
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 15243 if (ypos + 8 >= s->aheight) {
2111 312 int str_l = s->left_str[dblkpos + s->dblk_stride - 1];
2112 312 int str_r = s->left_str[dblkpos + s->dblk_stride];
2113
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 312 if ((str_l | str_r) & 3)
2114 135 deblock_edge_ver(frame, xpos, ypos + 4, str_l, str_r, s->deblock_chroma);
2115 }
2116 }
2117
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 15849 if (ypos > 0) {
2118
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 15243 if (xpos > 0) {
2119 14676 int str_t = s->top_str[dblkpos - s->dblk_stride - 1];
2120 14676 int str_d = s->top_str[dblkpos - 1];
2121
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 14676 if ((str_t | str_d) & 3)
2122 5906 deblock_edge_hor(frame, xpos - 4, ypos, str_t, str_d, s->deblock_chroma);
2123 }
2124 {
2125 15243 int str_t = s->top_str[dblkpos - s->dblk_stride];
2126 15243 int str_d = s->top_str[dblkpos];
2127
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 15243 if ((str_t | str_d) & 3)
2128 6120 deblock_edge_hor(frame, xpos, ypos, str_t, str_d, s->deblock_chroma);
2129 }
2130
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 15243 if (xpos + 8 >= s->awidth) {
2131 345 int str_t = s->top_str[dblkpos - s->dblk_stride + 1];
2132 345 int str_d = s->top_str[dblkpos + 1];
2133
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 345 if ((str_t | str_d) & 3)
2134 220 deblock_edge_hor(frame, xpos + 4, ypos, str_t, str_d, s->deblock_chroma);
2135 }
2136 }
2137 15849 }
2138
2139 7779 static void deblock(const RV60Context * s, AVFrame * frame, int xpos, int ypos, int size, int dpos)
2140 {
2141
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 19593 for (int x = 0; x < size >> 3; x++)
2142 11814 deblock8x8(s, frame, xpos + x * 8, ypos, dpos + x * 2);
2143
2144
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 11814 for (int y = 1; y < size >> 3; y++)
2145 4035 deblock8x8(s, frame, xpos, ypos + y * 8, dpos + y * 2 * s->dblk_stride);
2146 7779 }
2147
2148 7524 static void deblock_cu_r(RV60Context * s, AVFrame * frame, ThreadContext * thread, int xpos, int ypos, int log_size, int qp)
2149 {
2150 int pu_pos, tsize, ntiles;
2151 enum CUType cu_type;
2152
2153
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 7524 if (xpos >= s->awidth || ypos >= s->aheight)
2154 630 return;
2155
2156
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 6894 if (thread->cu_split[thread->cu_split_pos++]) {
2157 1782 int hsize = 1 << (log_size - 1);
2158 1782 log_size--;
2159 1782 deblock_cu_r(s, frame, thread, xpos, ypos, log_size, qp);
2160 1782 deblock_cu_r(s, frame, thread, xpos + hsize, ypos, log_size, qp);
2161 1782 deblock_cu_r(s, frame, thread, xpos, ypos + hsize, log_size, qp);
2162 1782 deblock_cu_r(s, frame, thread, xpos + hsize, ypos + hsize, log_size, qp);
2163 1782 return;
2164 }
2165
2166 5112 pu_pos = (ypos >> 3) * s->pu_stride + (xpos >> 3);
2167 5112 cu_type = s->pu_info[pu_pos].cu_type;
2168
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 5112 switch (log_size) {
2169 3152 case 3: tsize = 3; break;
2170
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 1683 case 4: tsize = cu_type && s->pu_info[pu_pos].pu_type ? 3 : 4; break;
2171 277 case 5:
2172 277 case 6: tsize = 4; break;
2173 }
2174 5112 ntiles = 1 << (log_size - tsize);
2175
2176
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 10881 for (int ty = 0; ty < ntiles; ty++)
2177
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 13548 for (int tx = 0; tx < ntiles; tx++) {
2178 7779 int x = xpos + (tx << tsize);
2179 7779 int y = ypos + (ty << tsize);
2180 7779 int cu_pos = ((y & 63) >> 3) * 8 + ((x & 63) >> 3);
2181
2182
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 7779 if (cu_type == CU_INTRA)
2183 2293 deblock_set_strength(s, x, y, 1 << tsize, qp, 2);
2184
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 5486 else if (cu_type != CU_SKIP && thread->coded_blk[cu_pos])
2185 1333 deblock_set_strength(s, x, y, 1 << tsize, qp, 1);
2186 else {
2187 4153 deblock_set_strength(s, x, y, 1 << tsize, qp, 0);
2188 4153 derive_deblock_strength(s, x, y, 1 << (tsize - 2));
2189 }
2190
2191 7779 deblock(s, frame, x, y, 1 << tsize, deblock_get_pos(s, x, y));
2192 }
2193 }
2194
2195 396 static int read_qp_offset(GetBitContext *gb, int qp_off_type)
2196 {
2197 int val;
2198
2199
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 396 switch (qp_off_type) {
2200 396 case 0:
2201 396 return 0;
2202 ✗ case 1:
2203 ✗ val = read_code012(gb);
2204 ✗ return val != 2 ? val : -1;
2205 ✗ default:
2206 ✗ if (!get_bits1(gb))
2207 ✗ return 0;
2208 ✗ val = get_bits(gb, 2);
2209 ✗ if (!(val & 2))
2210 ✗ return val + 1;
2211 else
2212 ✗ return -((val & 1) + 1);
2213 }
2214 }
2215
2216 396 static int calc_sel_qp(int osvquant, int qp)
2217 {
2218
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 396 switch (osvquant) {
2219 140 case 0: return qp;
2220 ✗ case 1: return qp <= 25 ? qp + 5 : qp;
2221 256 default:
2222
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 256 if (qp <= 18)
2223 256 return qp + 10;
2224 ✗ else if (qp <= 25)
2225 ✗ return qp + 5;
2226 else
2227 ✗ return qp;
2228 }
2229 }
2230
2231 102 static int decode_slice(AVCodecContext *avctx, void *tdata, int cu_y, int threadnr)
2232 {
2233 102 RV60Context *s = avctx->priv_data;
2234 102 AVFrame * frame = tdata;
2235 ThreadContext thread;
2236 GetBitContext gb;
2237 int qp, sel_qp, ret;
2238
2239 102 thread.avg_data[0] = thread.avg_buffer;
2240 102 thread.avg_data[1] = thread.avg_buffer + 64*64;
2241 102 thread.avg_data[2] = thread.avg_buffer + 64*64 + 32*32;
2242 102 thread.avg_linesize[0] = 64;
2243 102 thread.avg_linesize[1] = 32;
2244 102 thread.avg_linesize[2] = 32;
2245
2246
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 102 if ((ret = init_get_bits8(&gb, s->slice[cu_y].data, s->slice[cu_y].size)) < 0)
2247 ✗ return ret;
2248
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 498 for (int cu_x = 0; cu_x < s->cu_width; cu_x++) {
2250
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 396 if ((s->avctx->active_thread_type & FF_THREAD_SLICE) && cu_y)
2251 ✗ ff_thread_progress_await(&s->progress[cu_y - 1], cu_x + 2);
2252
2253 396 qp = s->qp + read_qp_offset(&gb, s->qp_off_type);
2254
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 396 if (qp < 0) {
2255 ✗ ret = AVERROR_INVALIDDATA;
2256 ✗ break;
2257 }
2258 396 sel_qp = calc_sel_qp(s->osvquant, qp);
2259
2260 396 memset(thread.coded_blk, 0, sizeof(thread.coded_blk));
2261 396 thread.cu_split_pos = 0;
2262
2263
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 396 if ((ret = decode_cu_r(s, frame, &thread, &gb, cu_x << 6, cu_y << 6, 6, qp, sel_qp)) < 0)
2264 ✗ break;
2265
2266
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 396 if (s->deblock) {
2267 396 thread.cu_split_pos = 0;
2268 396 deblock_cu_r(s, frame, &thread, cu_x << 6, cu_y << 6, 6, qp);
2269 }
2270
2271
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 396 if (s->avctx->active_thread_type & FF_THREAD_SLICE)
2272 ✗ ff_thread_progress_report(&s->progress[cu_y], cu_x + 1);
2273 }
2274
2275
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 102 if (s->avctx->active_thread_type & FF_THREAD_SLICE)
2276 ✗ ff_thread_progress_report(&s->progress[cu_y], INT_MAX);
2277
2278 102 return ret;
2279 }
2280
2281 43 static int rv60_decode_frame(AVCodecContext *avctx, AVFrame * frame,
2282 int * got_frame, AVPacket * avpkt)
2283 {
2284 43 RV60Context *s = avctx->priv_data;
2285 GetBitContext gb;
2286 int ret, header_size, width, height, ofs;
2287
2288
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 43 if (avpkt->size == 0) {
2289
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 4 if (s->last_frame[NEXT_PIC]->data[0]) {
2290 2 av_frame_move_ref(frame, s->last_frame[NEXT_PIC]);
2291 2 *got_frame = 1;
2292 }
2293 4 return 0;
2294 }
2295
2296
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 39 if (avpkt->size < 9)
2297 ✗ return AVERROR_INVALIDDATA;
2298
2299 39 header_size = avpkt->data[0] * 8 + 9;
2300
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 39 if (avpkt->size < header_size)
2301 ✗ return AVERROR_INVALIDDATA;
2302
2303
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 39 if ((ret = init_get_bits8(&gb, avpkt->data + header_size, avpkt->size - header_size)) < 0)
2304 ✗ return ret;
2305
2306
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 39 if ((ret = read_frame_header(s, &gb, &width, &height)) < 0)
2307 ✗ return ret;
2308
2309
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 39 if (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B ||
2310
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 39 avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I ||
2311
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 39 avctx->skip_frame >= AVDISCARD_ALL)
2312 ✗ return avpkt->size;
2313
2314
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 39 if (s->pict_type != AV_PICTURE_TYPE_B)
2315 15 FFSWAP(AVFrame *, s->last_frame[NEXT_PIC], s->last_frame[LAST_PIC]);
2316
2317
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 39 if ((s->pict_type == AV_PICTURE_TYPE_P && !s->last_frame[LAST_PIC]->data[0]) ||
2318
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 39 (s->pict_type == AV_PICTURE_TYPE_B && (!s->last_frame[LAST_PIC]->data[0] || !s->last_frame[NEXT_PIC]->data[0]))) {
2319 ✗ av_log(s->avctx, AV_LOG_ERROR, "missing reference frame\n");
2320 ✗ return AVERROR_INVALIDDATA;
2321 }
2322
2323 39 s->last_frame[CUR_PIC]->pict_type = s->pict_type;
2324
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 39 if (s->pict_type == AV_PICTURE_TYPE_I)
2325 2 s->last_frame[CUR_PIC]->flags |= AV_FRAME_FLAG_KEY;
2326
2327
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 39 if ((ret = update_dimensions_clear_info(s, width, height)) < 0)
2328 ✗ return ret;
2329
2330
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 39 if (!s->last_frame[CUR_PIC]->data[0])
2331
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 39 if ((ret = ff_get_buffer(avctx, s->last_frame[CUR_PIC], 0)) < 0)
2332 ✗ return ret;
2333
2334
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 39 if ((ret = read_slice_sizes(s, &gb)) < 0)
2335 ✗ return ret;
2336
2337 39 ofs = get_bits_count(&gb) / 8;
2338
2339
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 141 for (int i = 0; i < s->cu_height; i++) {
2340
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 102 if (header_size + ofs >= avpkt->size)
2341 ✗ return AVERROR_INVALIDDATA;
2342 102 s->slice[i].data = avpkt->data + header_size + ofs;
2343 102 s->slice[i].data_size = FFMIN(s->slice[i].size, avpkt->size - header_size - ofs);
2344 102 ofs += s->slice[i].size;
2345 }
2346
2347 39 ret = progress_init(s, s->cu_height);
2348
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 39 if (ret < 0)
2349 ✗ return ret;
2350
2351 39 s->avctx->execute2(s->avctx, decode_slice, s->last_frame[CUR_PIC], NULL, s->cu_height);
2352
2353 39 ret = 0;
2354
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 39 if (s->pict_type == AV_PICTURE_TYPE_B)
2355 24 av_frame_move_ref(frame, s->last_frame[CUR_PIC]);
2356
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 15 else if (s->last_frame[LAST_PIC]->data[0])
2357 13 ret = av_frame_ref(frame, s->last_frame[LAST_PIC]);
2358
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 39 if (ret < 0)
2359 ✗ return ret;
2360
2361
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 39 if (frame->data[0])
2362 37 *got_frame = 1;
2363
2364
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 39 if (s->pict_type != AV_PICTURE_TYPE_B) {
2365 15 av_frame_unref(s->last_frame[NEXT_PIC]);
2366 15 FFSWAP(AVFrame *, s->last_frame[CUR_PIC], s->last_frame[NEXT_PIC]);
2367 }
2368
2369
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 39 if (s->pict_type != AV_PICTURE_TYPE_B) {
2370 15 s->ref_pts[0] = s->ref_pts[1];
2371 15 s->ref_pts[1] = avpkt->pts;
2372
2373 15 s->ref_ts[0] = s->ref_ts[1];
2374 15 s->ref_ts[1] = s->ts;
2375
2376
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 15 if (s->ref_pts[1] > s->ref_pts[0] && s->ref_ts[1] > s->ref_ts[0])
2377 13 s->ts_scale = (s->ref_pts[1] - s->ref_pts[0]) / (s->ref_ts[1] - s->ref_ts[0]);
2378 } else {
2379 24 frame->pts = s->ref_pts[0] + (s->ts - s->ref_ts[0]) * s->ts_scale;
2380 }
2381
2382 39 return avpkt->size;
2383 }
2384
2385 ✗ static void rv60_flush(AVCodecContext *avctx)
2386 {
2387 ✗ RV60Context *s = avctx->priv_data;
2388
2389 ✗ for (int i = 0; i < 3; i++)
2390 ✗ av_frame_unref(s->last_frame[i]);
2391 ✗ }
2392
2393 4 static av_cold int rv60_decode_end(AVCodecContext * avctx)
2394 {
2395 4 RV60Context *s = avctx->priv_data;
2396
2397
2/2
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 16 for (int i = 0; i < 3; i++)
2398 12 av_frame_free(&s->last_frame[i]);
2399
2400 4 av_freep(&s->slice);
2401 4 av_freep(&s->pu_info);
2402 4 av_freep(&s->blk_info);
2403 4 av_freep(&s->top_str);
2404 4 av_freep(&s->left_str);
2405
2406
2/2
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 14 for (int i = 0; i < s->nb_progress; i++)
2407 10 ff_thread_progress_destroy(&s->progress[i]);
2408 4 av_freep(&s->progress);
2409
2410 4 return 0;
2411 }
2412
2413 const FFCodec ff_rv60_decoder = {
2414 .p.name = "rv60",
2415 CODEC_LONG_NAME("RealVideo 6.0"),
2416 .p.type = AVMEDIA_TYPE_VIDEO,
2417 .p.id = AV_CODEC_ID_RV60,
2418 .priv_data_size = sizeof(RV60Context),
2419 .init = rv60_decode_init,
2420 .close = rv60_decode_end,
2421 FF_CODEC_DECODE_CB(rv60_decode_frame),
2422 .flush = rv60_flush,
2423 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SLICE_THREADS,
2424 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
2425 };
2426