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1 | /* |
2 | * RV30/40 decoder common data | |
3 | * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /** | |
23 | * @file | |
24 | * RV30/40 decoder common data | |
25 | */ | |
26 | ||
27 | #include "libavutil/imgutils.h" | |
28 | #include "libavutil/internal.h" | |
29 | ||
30 | #include "avcodec.h" | |
31 | #include "error_resilience.h" | |
32 | #include "mpegutils.h" | |
33 | #include "mpegvideo.h" | |
34 | #include "golomb.h" | |
35 | #include "internal.h" | |
36 | #include "mathops.h" | |
37 | #include "mpeg_er.h" | |
38 | #include "qpeldsp.h" | |
39 | #include "rectangle.h" | |
40 | #include "thread.h" | |
41 | ||
42 | #include "rv34vlc.h" | |
43 | #include "rv34data.h" | |
44 | #include "rv34.h" | |
45 | ||
46 | static inline void ZERO8x2(void* dst, int stride) | |
47 | { | |
48 | fill_rectangle(dst, 1, 2, stride, 0, 4); | |
49 | fill_rectangle(((uint8_t*)(dst))+4, 1, 2, stride, 0, 4); | |
50 | } | |
51 | ||
52 | /** translation of RV30/40 macroblock types to lavc ones */ | |
53 | static const int rv34_mb_type_to_lavc[12] = { | |
54 | MB_TYPE_INTRA, | |
55 | MB_TYPE_INTRA16x16 | MB_TYPE_SEPARATE_DC, | |
56 | MB_TYPE_16x16 | MB_TYPE_L0, | |
57 | MB_TYPE_8x8 | MB_TYPE_L0, | |
58 | MB_TYPE_16x16 | MB_TYPE_L0, | |
59 | MB_TYPE_16x16 | MB_TYPE_L1, | |
60 | MB_TYPE_SKIP, | |
61 | MB_TYPE_DIRECT2 | MB_TYPE_16x16, | |
62 | MB_TYPE_16x8 | MB_TYPE_L0, | |
63 | MB_TYPE_8x16 | MB_TYPE_L0, | |
64 | MB_TYPE_16x16 | MB_TYPE_L0L1, | |
65 | MB_TYPE_16x16 | MB_TYPE_L0 | MB_TYPE_SEPARATE_DC | |
66 | }; | |
67 | ||
68 | ||
69 | static RV34VLC intra_vlcs[NUM_INTRA_TABLES], inter_vlcs[NUM_INTER_TABLES]; | |
70 | ||
71 | static int rv34_decode_mv(RV34DecContext *r, int block_type); | |
72 | ||
73 | /** | |
74 | * @name RV30/40 VLC generating functions | |
75 | * @{ | |
76 | */ | |
77 | ||
78 | static const int table_offs[] = { | |
79 | 0, 1818, 3622, 4144, 4698, 5234, 5804, 5868, 5900, 5932, | |
80 | 5996, 6252, 6316, 6348, 6380, 7674, 8944, 10274, 11668, 12250, | |
81 | 14060, 15846, 16372, 16962, 17512, 18148, 18180, 18212, 18244, 18308, | |
82 | 18564, 18628, 18660, 18692, 20036, 21314, 22648, 23968, 24614, 26384, | |
83 | 28190, 28736, 29366, 29938, 30608, 30640, 30672, 30704, 30768, 31024, | |
84 | 31088, 31120, 31184, 32570, 33898, 35236, 36644, 37286, 39020, 40802, | |
85 | 41368, 42052, 42692, 43348, 43380, 43412, 43444, 43476, 43604, 43668, | |
86 | 43700, 43732, 45100, 46430, 47778, 49160, 49802, 51550, 53340, 53972, | |
87 | 54648, 55348, 55994, 56122, 56154, 56186, 56218, 56346, 56410, 56442, | |
88 | 56474, 57878, 59290, 60636, 62036, 62682, 64460, 64524, 64588, 64716, | |
89 | 64844, 66076, 67466, 67978, 68542, 69064, 69648, 70296, 72010, 72074, | |
90 | 72138, 72202, 72330, 73572, 74936, 75454, 76030, 76566, 77176, 77822, | |
91 | 79582, 79646, 79678, 79742, 79870, 81180, 82536, 83064, 83672, 84242, | |
92 | 84934, 85576, 87384, 87448, 87480, 87544, 87672, 88982, 90340, 90902, | |
93 | 91598, 92182, 92846, 93488, 95246, 95278, 95310, 95374, 95502, 96878, | |
94 | 98266, 98848, 99542, 100234, 100884, 101524, 103320, 103352, 103384, 103416, | |
95 | 103480, 104874, 106222, 106910, 107584, 108258, 108902, 109544, 111366, 111398, | |
96 | 111430, 111462, 111494, 112878, 114320, 114988, 115660, 116310, 116950, 117592 | |
97 | }; | |
98 | ||
99 | static VLC_TYPE table_data[117592][2]; | |
100 | ||
101 | /** | |
102 | * Generate VLC from codeword lengths. | |
103 | * @param bits codeword lengths (zeroes are accepted) | |
104 | * @param size length of input data | |
105 | * @param vlc output VLC | |
106 | * @param insyms symbols for input codes (NULL for default ones) | |
107 | * @param num VLC table number (for static initialization) | |
108 | */ | |
109 | static void rv34_gen_vlc(const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms, | |
110 | const int num) | |
111 | { | |
112 | int i; | |
113 | int counts[17] = {0}, codes[17]; | |
114 | uint16_t cw[MAX_VLC_SIZE], syms[MAX_VLC_SIZE]; | |
115 | uint8_t bits2[MAX_VLC_SIZE]; | |
116 | int maxbits = 0, realsize = 0; | |
117 | ||
118 | for(i = 0; i < size; i++){ | |
119 | if(bits[i]){ | |
120 | bits2[realsize] = bits[i]; | |
121 | syms[realsize] = insyms ? insyms[i] : i; | |
122 | realsize++; | |
123 | maxbits = FFMAX(maxbits, bits[i]); | |
124 | counts[bits[i]]++; | |
125 | } | |
126 | } | |
127 | ||
128 | codes[0] = 0; | |
129 | for(i = 0; i < 16; i++) | |
130 | codes[i+1] = (codes[i] + counts[i]) << 1; | |
131 | for(i = 0; i < realsize; i++) | |
132 | cw[i] = codes[bits2[i]]++; | |
133 | ||
134 | vlc->table = &table_data[table_offs[num]]; | |
135 | vlc->table_allocated = table_offs[num + 1] - table_offs[num]; | |
136 | ff_init_vlc_sparse(vlc, FFMIN(maxbits, 9), realsize, | |
137 | bits2, 1, 1, | |
138 | cw, 2, 2, | |
139 | syms, 2, 2, INIT_VLC_USE_NEW_STATIC); | |
140 | } | |
141 | ||
142 | /** | |
143 | * Initialize all tables. | |
144 | */ | |
145 | static av_cold void rv34_init_tables(void) | |
146 | { | |
147 | int i, j, k; | |
148 | ||
149 | for(i = 0; i < NUM_INTRA_TABLES; i++){ | |
150 | for(j = 0; j < 2; j++){ | |
151 | rv34_gen_vlc(rv34_table_intra_cbppat [i][j], CBPPAT_VLC_SIZE, &intra_vlcs[i].cbppattern[j], NULL, 19*i + 0 + j); | |
152 | rv34_gen_vlc(rv34_table_intra_secondpat[i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].second_pattern[j], NULL, 19*i + 2 + j); | |
153 | rv34_gen_vlc(rv34_table_intra_thirdpat [i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].third_pattern[j], NULL, 19*i + 4 + j); | |
154 | for(k = 0; k < 4; k++){ | |
155 | rv34_gen_vlc(rv34_table_intra_cbp[i][j+k*2], CBP_VLC_SIZE, &intra_vlcs[i].cbp[j][k], rv34_cbp_code, 19*i + 6 + j*4 + k); | |
156 | } | |
157 | } | |
158 | for(j = 0; j < 4; j++){ | |
159 | rv34_gen_vlc(rv34_table_intra_firstpat[i][j], FIRSTBLK_VLC_SIZE, &intra_vlcs[i].first_pattern[j], NULL, 19*i + 14 + j); | |
160 | } | |
161 | rv34_gen_vlc(rv34_intra_coeff[i], COEFF_VLC_SIZE, &intra_vlcs[i].coefficient, NULL, 19*i + 18); | |
162 | } | |
163 | ||
164 | for(i = 0; i < NUM_INTER_TABLES; i++){ | |
165 | rv34_gen_vlc(rv34_inter_cbppat[i], CBPPAT_VLC_SIZE, &inter_vlcs[i].cbppattern[0], NULL, i*12 + 95); | |
166 | for(j = 0; j < 4; j++){ | |
167 | rv34_gen_vlc(rv34_inter_cbp[i][j], CBP_VLC_SIZE, &inter_vlcs[i].cbp[0][j], rv34_cbp_code, i*12 + 96 + j); | |
168 | } | |
169 | for(j = 0; j < 2; j++){ | |
170 | rv34_gen_vlc(rv34_table_inter_firstpat [i][j], FIRSTBLK_VLC_SIZE, &inter_vlcs[i].first_pattern[j], NULL, i*12 + 100 + j); | |
171 | rv34_gen_vlc(rv34_table_inter_secondpat[i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].second_pattern[j], NULL, i*12 + 102 + j); | |
172 | rv34_gen_vlc(rv34_table_inter_thirdpat [i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].third_pattern[j], NULL, i*12 + 104 + j); | |
173 | } | |
174 | rv34_gen_vlc(rv34_inter_coeff[i], COEFF_VLC_SIZE, &inter_vlcs[i].coefficient, NULL, i*12 + 106); | |
175 | } | |
176 | } | |
177 | ||
178 | /** @} */ // vlc group | |
179 | ||
180 | /** | |
181 | * @name RV30/40 4x4 block decoding functions | |
182 | * @{ | |
183 | */ | |
184 | ||
185 | /** | |
186 | * Decode coded block pattern. | |
187 | */ | |
188 | static int rv34_decode_cbp(GetBitContext *gb, RV34VLC *vlc, int table) | |
189 | { | |
190 | int pattern, code, cbp=0; | |
191 | int ones; | |
192 | static const int cbp_masks[3] = {0x100000, 0x010000, 0x110000}; | |
193 | static const int shifts[4] = { 0, 2, 8, 10 }; | |
194 | const int *curshift = shifts; | |
195 | int i, t, mask; | |
196 | ||
197 | code = get_vlc2(gb, vlc->cbppattern[table].table, 9, 2); | |
198 | pattern = code & 0xF; | |
199 | code >>= 4; | |
200 | ||
201 | ones = rv34_count_ones[pattern]; | |
202 | ||
203 | for(mask = 8; mask; mask >>= 1, curshift++){ | |
204 | if(pattern & mask) | |
205 | cbp |= get_vlc2(gb, vlc->cbp[table][ones].table, vlc->cbp[table][ones].bits, 1) << curshift[0]; | |
206 | } | |
207 | ||
208 | for(i = 0; i < 4; i++){ | |
209 | t = (modulo_three_table[code] >> (6 - 2*i)) & 3; | |
210 | if(t == 1) | |
211 | cbp |= cbp_masks[get_bits1(gb)] << i; | |
212 | if(t == 2) | |
213 | cbp |= cbp_masks[2] << i; | |
214 | } | |
215 | return cbp; | |
216 | } | |
217 | ||
218 | /** | |
219 | * Get one coefficient value from the bitstream and store it. | |
220 | */ | |
221 | static inline void decode_coeff(int16_t *dst, int coef, int esc, GetBitContext *gb, VLC* vlc, int q) | |
222 | { | |
223 | if(coef){ | |
224 | if(coef == esc){ | |
225 | coef = get_vlc2(gb, vlc->table, 9, 2); | |
226 | if(coef > 23){ | |
227 | coef -= 23; | |
228 | coef = 22 + ((1 << coef) | get_bits(gb, coef)); | |
229 | } | |
230 | coef += esc; | |
231 | } | |
232 | if(get_bits1(gb)) | |
233 | coef = -coef; | |
234 | *dst = (coef*q + 8) >> 4; | |
235 | } | |
236 | } | |
237 | ||
238 | /** | |
239 | * Decode 2x2 subblock of coefficients. | |
240 | */ | |
241 | static inline void decode_subblock(int16_t *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q) | |
242 | { | |
243 | int flags = modulo_three_table[code]; | |
244 | ||
245 | decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q); | |
246 | if(is_block2){ | |
247 | decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q); | |
248 | decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q); | |
249 | }else{ | |
250 | decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q); | |
251 | decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q); | |
252 | } | |
253 | decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q); | |
254 | } | |
255 | ||
256 | /** | |
257 | * Decode a single coefficient. | |
258 | */ | |
259 | static inline void decode_subblock1(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q) | |
260 | { | |
261 | int coeff = modulo_three_table[code] >> 6; | |
262 | decode_coeff(dst, coeff, 3, gb, vlc, q); | |
263 | } | |
264 | ||
265 | static inline void decode_subblock3(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, | |
266 | int q_dc, int q_ac1, int q_ac2) | |
267 | { | |
268 | int flags = modulo_three_table[code]; | |
269 | ||
270 | decode_coeff(dst+0*4+0, (flags >> 6) , 3, gb, vlc, q_dc); | |
271 | decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1); | |
272 | decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q_ac1); | |
273 | decode_coeff(dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q_ac2); | |
274 | } | |
275 | ||
276 | /** | |
277 | * Decode coefficients for 4x4 block. | |
278 | * | |
279 | * This is done by filling 2x2 subblocks with decoded coefficients | |
280 | * in this order (the same for subblocks and subblock coefficients): | |
281 | * o--o | |
282 | * / | |
283 | * / | |
284 | * o--o | |
285 | */ | |
286 | ||
287 | static int rv34_decode_block(int16_t *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2) | |
288 | { | |
289 | int code, pattern, has_ac = 1; | |
290 | ||
291 | code = get_vlc2(gb, rvlc->first_pattern[fc].table, 9, 2); | |
292 | ||
293 | pattern = code & 0x7; | |
294 | ||
295 | code >>= 3; | |
296 | ||
297 | if (modulo_three_table[code] & 0x3F) { | |
298 | decode_subblock3(dst, code, gb, &rvlc->coefficient, q_dc, q_ac1, q_ac2); | |
299 | } else { | |
300 | decode_subblock1(dst, code, gb, &rvlc->coefficient, q_dc); | |
301 | if (!pattern) | |
302 | return 0; | |
303 | has_ac = 0; | |
304 | } | |
305 | ||
306 | if(pattern & 4){ | |
307 | code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); | |
308 | decode_subblock(dst + 4*0+2, code, 0, gb, &rvlc->coefficient, q_ac2); | |
309 | } | |
310 | if(pattern & 2){ // Looks like coefficients 1 and 2 are swapped for this block | |
311 | code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); | |
312 | decode_subblock(dst + 4*2+0, code, 1, gb, &rvlc->coefficient, q_ac2); | |
313 | } | |
314 | if(pattern & 1){ | |
315 | code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2); | |
316 | decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2); | |
317 | } | |
318 | return has_ac | pattern; | |
319 | } | |
320 | ||
321 | /** | |
322 | * @name RV30/40 bitstream parsing | |
323 | * @{ | |
324 | */ | |
325 | ||
326 | /** | |
327 | * Decode starting slice position. | |
328 | * @todo Maybe replace with ff_h263_decode_mba() ? | |
329 | */ | |
330 | int ff_rv34_get_start_offset(GetBitContext *gb, int mb_size) | |
331 | { | |
332 | int i; | |
333 | for(i = 0; i < 5; i++) | |
334 | if(rv34_mb_max_sizes[i] >= mb_size - 1) | |
335 | break; | |
336 | return rv34_mb_bits_sizes[i]; | |
337 | } | |
338 | ||
339 | /** | |
340 | * Select VLC set for decoding from current quantizer, modifier and frame type. | |
341 | */ | |
342 | static inline RV34VLC* choose_vlc_set(int quant, int mod, int type) | |
343 | { | |
344 | if(mod == 2 && quant < 19) quant += 10; | |
345 | else if(mod && quant < 26) quant += 5; | |
346 | return type ? &inter_vlcs[rv34_quant_to_vlc_set[1][av_clip(quant, 0, 30)]] | |
347 | : &intra_vlcs[rv34_quant_to_vlc_set[0][av_clip(quant, 0, 30)]]; | |
348 | } | |
349 | ||
350 | /** | |
351 | * Decode intra macroblock header and return CBP in case of success, -1 otherwise. | |
352 | */ | |
353 | static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types) | |
354 | { | |
355 | MpegEncContext *s = &r->s; | |
356 | GetBitContext *gb = &s->gb; | |
357 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; | |
358 | int t; | |
359 | ||
360 | r->is16 = get_bits1(gb); | |
361 | if(r->is16){ | |
362 | s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA16x16; | |
363 | r->block_type = RV34_MB_TYPE_INTRA16x16; | |
364 | t = get_bits(gb, 2); | |
365 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); | |
366 | r->luma_vlc = 2; | |
367 | }else{ | |
368 | if(!r->rv30){ | |
369 | if(!get_bits1(gb)) | |
370 | av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n"); | |
371 | } | |
372 | s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA; | |
373 | r->block_type = RV34_MB_TYPE_INTRA; | |
374 | if(r->decode_intra_types(r, gb, intra_types) < 0) | |
375 | return -1; | |
376 | r->luma_vlc = 1; | |
377 | } | |
378 | ||
379 | r->chroma_vlc = 0; | |
380 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); | |
381 | ||
382 | return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); | |
383 | } | |
384 | ||
385 | /** | |
386 | * Decode inter macroblock header and return CBP in case of success, -1 otherwise. | |
387 | */ | |
388 | static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types) | |
389 | { | |
390 | MpegEncContext *s = &r->s; | |
391 | GetBitContext *gb = &s->gb; | |
392 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; | |
393 | int i, t; | |
394 | ||
395 | r->block_type = r->decode_mb_info(r); | |
396 | if(r->block_type == -1) | |
397 | return -1; | |
398 | s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type]; | |
399 | r->mb_type[mb_pos] = r->block_type; | |
400 | if(r->block_type == RV34_MB_SKIP){ | |
401 | if(s->pict_type == AV_PICTURE_TYPE_P) | |
402 | r->mb_type[mb_pos] = RV34_MB_P_16x16; | |
403 | if(s->pict_type == AV_PICTURE_TYPE_B) | |
404 | r->mb_type[mb_pos] = RV34_MB_B_DIRECT; | |
405 | } | |
406 | r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]); | |
407 | rv34_decode_mv(r, r->block_type); | |
408 | if(r->block_type == RV34_MB_SKIP){ | |
409 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0])); | |
410 | return 0; | |
411 | } | |
412 | r->chroma_vlc = 1; | |
413 | r->luma_vlc = 0; | |
414 | ||
415 | if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ | |
416 | if(r->is16){ | |
417 | t = get_bits(gb, 2); | |
418 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); | |
419 | r->luma_vlc = 2; | |
420 | }else{ | |
421 | if(r->decode_intra_types(r, gb, intra_types) < 0) | |
422 | return -1; | |
423 | r->luma_vlc = 1; | |
424 | } | |
425 | r->chroma_vlc = 0; | |
426 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); | |
427 | }else{ | |
428 | for(i = 0; i < 16; i++) | |
429 | intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0; | |
430 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); | |
431 | if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){ | |
432 | r->is16 = 1; | |
433 | r->chroma_vlc = 1; | |
434 | r->luma_vlc = 2; | |
435 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); | |
436 | } | |
437 | } | |
438 | ||
439 | return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); | |
440 | } | |
441 | ||
442 | /** @} */ //bitstream functions | |
443 | ||
444 | /** | |
445 | * @name motion vector related code (prediction, reconstruction, motion compensation) | |
446 | * @{ | |
447 | */ | |
448 | ||
449 | /** macroblock partition width in 8x8 blocks */ | |
450 | static const uint8_t part_sizes_w[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 }; | |
451 | ||
452 | /** macroblock partition height in 8x8 blocks */ | |
453 | static const uint8_t part_sizes_h[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 }; | |
454 | ||
455 | /** availability index for subblocks */ | |
456 | static const uint8_t avail_indexes[4] = { 6, 7, 10, 11 }; | |
457 | ||
458 | /** | |
459 | * motion vector prediction | |
460 | * | |
461 | * Motion prediction performed for the block by using median prediction of | |
462 | * motion vectors from the left, top and right top blocks but in corner cases | |
463 | * some other vectors may be used instead. | |
464 | */ | |
465 | static void rv34_pred_mv(RV34DecContext *r, int block_type, int subblock_no, int dmv_no) | |
466 | { | |
467 | MpegEncContext *s = &r->s; | |
468 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; | |
469 | int A[2] = {0}, B[2], C[2]; | |
470 | int i, j; | |
471 | int mx, my; | |
472 | int* avail = r->avail_cache + avail_indexes[subblock_no]; | |
473 | int c_off = part_sizes_w[block_type]; | |
474 | ||
475 | mv_pos += (subblock_no & 1) + (subblock_no >> 1)*s->b8_stride; | |
476 | if(subblock_no == 3) | |
477 | c_off = -1; | |
478 | ||
479 | if(avail[-1]){ | |
480 | A[0] = s->current_picture_ptr->motion_val[0][mv_pos-1][0]; | |
481 | A[1] = s->current_picture_ptr->motion_val[0][mv_pos-1][1]; | |
482 | } | |
483 | if(avail[-4]){ | |
484 | B[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][0]; | |
485 | B[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][1]; | |
486 | }else{ | |
487 | B[0] = A[0]; | |
488 | B[1] = A[1]; | |
489 | } | |
490 | if(!avail[c_off-4]){ | |
491 | if(avail[-4] && (avail[-1] || r->rv30)){ | |
492 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][0]; | |
493 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][1]; | |
494 | }else{ | |
495 | C[0] = A[0]; | |
496 | C[1] = A[1]; | |
497 | } | |
498 | }else{ | |
499 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][0]; | |
500 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][1]; | |
501 | } | |
502 | mx = mid_pred(A[0], B[0], C[0]); | |
503 | my = mid_pred(A[1], B[1], C[1]); | |
504 | mx += r->dmv[dmv_no][0]; | |
505 | my += r->dmv[dmv_no][1]; | |
506 | for(j = 0; j < part_sizes_h[block_type]; j++){ | |
507 | for(i = 0; i < part_sizes_w[block_type]; i++){ | |
508 | s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][0] = mx; | |
509 | s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][1] = my; | |
510 | } | |
511 | } | |
512 | } | |
513 | ||
514 | #define GET_PTS_DIFF(a, b) (((a) - (b) + 8192) & 0x1FFF) | |
515 | ||
516 | /** | |
517 | * Calculate motion vector component that should be added for direct blocks. | |
518 | */ | |
519 | static int calc_add_mv(RV34DecContext *r, int dir, int val) | |
520 | { | |
521 | int mul = dir ? -r->mv_weight2 : r->mv_weight1; | |
522 | ||
523 | return (val * mul + 0x2000) >> 14; | |
524 | } | |
525 | ||
526 | /** | |
527 | * Predict motion vector for B-frame macroblock. | |
528 | */ | |
529 | static inline void rv34_pred_b_vector(int A[2], int B[2], int C[2], | |
530 | int A_avail, int B_avail, int C_avail, | |
531 | int *mx, int *my) | |
532 | { | |
533 | if(A_avail + B_avail + C_avail != 3){ | |
534 | *mx = A[0] + B[0] + C[0]; | |
535 | *my = A[1] + B[1] + C[1]; | |
536 | if(A_avail + B_avail + C_avail == 2){ | |
537 | *mx /= 2; | |
538 | *my /= 2; | |
539 | } | |
540 | }else{ | |
541 | *mx = mid_pred(A[0], B[0], C[0]); | |
542 | *my = mid_pred(A[1], B[1], C[1]); | |
543 | } | |
544 | } | |
545 | ||
546 | /** | |
547 | * motion vector prediction for B-frames | |
548 | */ | |
549 | static void rv34_pred_mv_b(RV34DecContext *r, int block_type, int dir) | |
550 | { | |
551 | MpegEncContext *s = &r->s; | |
552 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; | |
553 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; | |
554 | int A[2] = { 0 }, B[2] = { 0 }, C[2] = { 0 }; | |
555 | int has_A = 0, has_B = 0, has_C = 0; | |
556 | int mx, my; | |
557 | int i, j; | |
558 | Picture *cur_pic = s->current_picture_ptr; | |
559 | const int mask = dir ? MB_TYPE_L1 : MB_TYPE_L0; | |
560 | int type = cur_pic->mb_type[mb_pos]; | |
561 | ||
562 | if((r->avail_cache[6-1] & type) & mask){ | |
563 | A[0] = cur_pic->motion_val[dir][mv_pos - 1][0]; | |
564 | A[1] = cur_pic->motion_val[dir][mv_pos - 1][1]; | |
565 | has_A = 1; | |
566 | } | |
567 | if((r->avail_cache[6-4] & type) & mask){ | |
568 | B[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][0]; | |
569 | B[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][1]; | |
570 | has_B = 1; | |
571 | } | |
572 | if(r->avail_cache[6-4] && (r->avail_cache[6-2] & type) & mask){ | |
573 | C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][0]; | |
574 | C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][1]; | |
575 | has_C = 1; | |
576 | }else if((s->mb_x+1) == s->mb_width && (r->avail_cache[6-5] & type) & mask){ | |
577 | C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][0]; | |
578 | C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][1]; | |
579 | has_C = 1; | |
580 | } | |
581 | ||
582 | rv34_pred_b_vector(A, B, C, has_A, has_B, has_C, &mx, &my); | |
583 | ||
584 | mx += r->dmv[dir][0]; | |
585 | my += r->dmv[dir][1]; | |
586 | ||
587 | for(j = 0; j < 2; j++){ | |
588 | for(i = 0; i < 2; i++){ | |
589 | cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][0] = mx; | |
590 | cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][1] = my; | |
591 | } | |
592 | } | |
593 | if(block_type == RV34_MB_B_BACKWARD || block_type == RV34_MB_B_FORWARD){ | |
594 | ZERO8x2(cur_pic->motion_val[!dir][mv_pos], s->b8_stride); | |
595 | } | |
596 | } | |
597 | ||
598 | /** | |
599 | * motion vector prediction - RV3 version | |
600 | */ | |
601 | static void rv34_pred_mv_rv3(RV34DecContext *r, int block_type, int dir) | |
602 | { | |
603 | MpegEncContext *s = &r->s; | |
604 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; | |
605 | int A[2] = {0}, B[2], C[2]; | |
606 | int i, j, k; | |
607 | int mx, my; | |
608 | int* avail = r->avail_cache + avail_indexes[0]; | |
609 | ||
610 | if(avail[-1]){ | |
611 | A[0] = s->current_picture_ptr->motion_val[0][mv_pos - 1][0]; | |
612 | A[1] = s->current_picture_ptr->motion_val[0][mv_pos - 1][1]; | |
613 | } | |
614 | if(avail[-4]){ | |
615 | B[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][0]; | |
616 | B[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][1]; | |
617 | }else{ | |
618 | B[0] = A[0]; | |
619 | B[1] = A[1]; | |
620 | } | |
621 | if(!avail[-4 + 2]){ | |
622 | if(avail[-4] && (avail[-1])){ | |
623 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][0]; | |
624 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][1]; | |
625 | }else{ | |
626 | C[0] = A[0]; | |
627 | C[1] = A[1]; | |
628 | } | |
629 | }else{ | |
630 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][0]; | |
631 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][1]; | |
632 | } | |
633 | mx = mid_pred(A[0], B[0], C[0]); | |
634 | my = mid_pred(A[1], B[1], C[1]); | |
635 | mx += r->dmv[0][0]; | |
636 | my += r->dmv[0][1]; | |
637 | for(j = 0; j < 2; j++){ | |
638 | for(i = 0; i < 2; i++){ | |
639 | for(k = 0; k < 2; k++){ | |
640 | s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][0] = mx; | |
641 | s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][1] = my; | |
642 | } | |
643 | } | |
644 | } | |
645 | } | |
646 | ||
647 | static const int chroma_coeffs[3] = { 0, 3, 5 }; | |
648 | ||
649 | /** | |
650 | * generic motion compensation function | |
651 | * | |
652 | * @param r decoder context | |
653 | * @param block_type type of the current block | |
654 | * @param xoff horizontal offset from the start of the current block | |
655 | * @param yoff vertical offset from the start of the current block | |
656 | * @param mv_off offset to the motion vector information | |
657 | * @param width width of the current partition in 8x8 blocks | |
658 | * @param height height of the current partition in 8x8 blocks | |
659 | * @param dir motion compensation direction (i.e. from the last or the next reference frame) | |
660 | * @param thirdpel motion vectors are specified in 1/3 of pixel | |
661 | * @param qpel_mc a set of functions used to perform luma motion compensation | |
662 | * @param chroma_mc a set of functions used to perform chroma motion compensation | |
663 | */ | |
664 | static inline void rv34_mc(RV34DecContext *r, const int block_type, | |
665 | const int xoff, const int yoff, int mv_off, | |
666 | const int width, const int height, int dir, | |
667 | const int thirdpel, int weighted, | |
668 | qpel_mc_func (*qpel_mc)[16], | |
669 | h264_chroma_mc_func (*chroma_mc)) | |
670 | { | |
671 | MpegEncContext *s = &r->s; | |
672 | uint8_t *Y, *U, *V, *srcY, *srcU, *srcV; | |
673 | int dxy, mx, my, umx, umy, lx, ly, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; | |
674 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride + mv_off; | |
675 | int is16x16 = 1; | |
676 | int emu = 0; | |
677 | ||
678 | if(thirdpel){ | |
679 | int chroma_mx, chroma_my; | |
680 | mx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) / 3 - (1 << 24); | |
681 | my = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) / 3 - (1 << 24); | |
682 | lx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) % 3; | |
683 | ly = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) % 3; | |
684 | chroma_mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; | |
685 | chroma_my = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; | |
686 | umx = (chroma_mx + (3 << 24)) / 3 - (1 << 24); | |
687 | umy = (chroma_my + (3 << 24)) / 3 - (1 << 24); | |
688 | uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3]; | |
689 | uvmy = chroma_coeffs[(chroma_my + (3 << 24)) % 3]; | |
690 | }else{ | |
691 | int cx, cy; | |
692 | mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] >> 2; | |
693 | my = s->current_picture_ptr->motion_val[dir][mv_pos][1] >> 2; | |
694 | lx = s->current_picture_ptr->motion_val[dir][mv_pos][0] & 3; | |
695 | ly = s->current_picture_ptr->motion_val[dir][mv_pos][1] & 3; | |
696 | cx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; | |
697 | cy = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; | |
698 | umx = cx >> 2; | |
699 | umy = cy >> 2; | |
700 | uvmx = (cx & 3) << 1; | |
701 | uvmy = (cy & 3) << 1; | |
702 | //due to some flaw RV40 uses the same MC compensation routine for H2V2 and H3V3 | |
703 | if(uvmx == 6 && uvmy == 6) | |
704 | uvmx = uvmy = 4; | |
705 | } | |
706 | ||
707 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) { | |
708 | /* wait for the referenced mb row to be finished */ | |
709 | int mb_row = s->mb_y + ((yoff + my + 5 + 8 * height) >> 4); | |
710 | ThreadFrame *f = dir ? &s->next_picture_ptr->tf : &s->last_picture_ptr->tf; | |
711 | ff_thread_await_progress(f, mb_row, 0); | |
712 | } | |
713 | ||
714 | dxy = ly*4 + lx; | |
715 | srcY = dir ? s->next_picture_ptr->f->data[0] : s->last_picture_ptr->f->data[0]; | |
716 | srcU = dir ? s->next_picture_ptr->f->data[1] : s->last_picture_ptr->f->data[1]; | |
717 | srcV = dir ? s->next_picture_ptr->f->data[2] : s->last_picture_ptr->f->data[2]; | |
718 | src_x = s->mb_x * 16 + xoff + mx; | |
719 | src_y = s->mb_y * 16 + yoff + my; | |
720 | uvsrc_x = s->mb_x * 8 + (xoff >> 1) + umx; | |
721 | uvsrc_y = s->mb_y * 8 + (yoff >> 1) + umy; | |
722 | srcY += src_y * s->linesize + src_x; | |
723 | srcU += uvsrc_y * s->uvlinesize + uvsrc_x; | |
724 | srcV += uvsrc_y * s->uvlinesize + uvsrc_x; | |
725 | if(s->h_edge_pos - (width << 3) < 6 || s->v_edge_pos - (height << 3) < 6 || | |
726 | (unsigned)(src_x - !!lx*2) > s->h_edge_pos - !!lx*2 - (width <<3) - 4 || | |
727 | (unsigned)(src_y - !!ly*2) > s->v_edge_pos - !!ly*2 - (height<<3) - 4) { | |
728 | srcY -= 2 + 2*s->linesize; | |
729 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, | |
730 | s->linesize, s->linesize, | |
731 | (width << 3) + 6, (height << 3) + 6, | |
732 | src_x - 2, src_y - 2, | |
733 | s->h_edge_pos, s->v_edge_pos); | |
734 | srcY = s->edge_emu_buffer + 2 + 2*s->linesize; | |
735 | emu = 1; | |
736 | } | |
737 | if(!weighted){ | |
738 | Y = s->dest[0] + xoff + yoff *s->linesize; | |
739 | U = s->dest[1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; | |
740 | V = s->dest[2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; | |
741 | }else{ | |
742 | Y = r->tmp_b_block_y [dir] + xoff + yoff *s->linesize; | |
743 | U = r->tmp_b_block_uv[dir*2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; | |
744 | V = r->tmp_b_block_uv[dir*2+1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; | |
745 | } | |
746 | ||
747 | if(block_type == RV34_MB_P_16x8){ | |
748 | qpel_mc[1][dxy](Y, srcY, s->linesize); | |
749 | Y += 8; | |
750 | srcY += 8; | |
751 | }else if(block_type == RV34_MB_P_8x16){ | |
752 | qpel_mc[1][dxy](Y, srcY, s->linesize); | |
753 | Y += 8 * s->linesize; | |
754 | srcY += 8 * s->linesize; | |
755 | } | |
756 | is16x16 = (block_type != RV34_MB_P_8x8) && (block_type != RV34_MB_P_16x8) && (block_type != RV34_MB_P_8x16); | |
757 | qpel_mc[!is16x16][dxy](Y, srcY, s->linesize); | |
758 | if (emu) { | |
759 | uint8_t *uvbuf = s->edge_emu_buffer; | |
760 | ||
761 | s->vdsp.emulated_edge_mc(uvbuf, srcU, | |
762 | s->uvlinesize, s->uvlinesize, | |
763 | (width << 2) + 1, (height << 2) + 1, | |
764 | uvsrc_x, uvsrc_y, | |
765 | s->h_edge_pos >> 1, s->v_edge_pos >> 1); | |
766 | srcU = uvbuf; | |
767 | uvbuf += 9*s->uvlinesize; | |
768 | ||
769 | s->vdsp.emulated_edge_mc(uvbuf, srcV, | |
770 | s->uvlinesize, s->uvlinesize, | |
771 | (width << 2) + 1, (height << 2) + 1, | |
772 | uvsrc_x, uvsrc_y, | |
773 | s->h_edge_pos >> 1, s->v_edge_pos >> 1); | |
774 | srcV = uvbuf; | |
775 | } | |
776 | chroma_mc[2-width] (U, srcU, s->uvlinesize, height*4, uvmx, uvmy); | |
777 | chroma_mc[2-width] (V, srcV, s->uvlinesize, height*4, uvmx, uvmy); | |
778 | } | |
779 | ||
780 | static void rv34_mc_1mv(RV34DecContext *r, const int block_type, | |
781 | const int xoff, const int yoff, int mv_off, | |
782 | const int width, const int height, int dir) | |
783 | { | |
784 | rv34_mc(r, block_type, xoff, yoff, mv_off, width, height, dir, r->rv30, 0, | |
785 | r->rdsp.put_pixels_tab, | |
786 | r->rdsp.put_chroma_pixels_tab); | |
787 | } | |
788 | ||
789 | static void rv4_weight(RV34DecContext *r) | |
790 | { | |
791 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][0](r->s.dest[0], | |
792 | r->tmp_b_block_y[0], | |
793 | r->tmp_b_block_y[1], | |
794 | r->weight1, | |
795 | r->weight2, | |
796 | r->s.linesize); | |
797 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[1], | |
798 | r->tmp_b_block_uv[0], | |
799 | r->tmp_b_block_uv[2], | |
800 | r->weight1, | |
801 | r->weight2, | |
802 | r->s.uvlinesize); | |
803 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[2], | |
804 | r->tmp_b_block_uv[1], | |
805 | r->tmp_b_block_uv[3], | |
806 | r->weight1, | |
807 | r->weight2, | |
808 | r->s.uvlinesize); | |
809 | } | |
810 | ||
811 | static void rv34_mc_2mv(RV34DecContext *r, const int block_type) | |
812 | { | |
813 | int weighted = !r->rv30 && block_type != RV34_MB_B_BIDIR && r->weight1 != 8192; | |
814 | ||
815 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 0, r->rv30, weighted, | |
816 | r->rdsp.put_pixels_tab, | |
817 | r->rdsp.put_chroma_pixels_tab); | |
818 | if(!weighted){ | |
819 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 0, | |
820 | r->rdsp.avg_pixels_tab, | |
821 | r->rdsp.avg_chroma_pixels_tab); | |
822 | }else{ | |
823 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 1, | |
824 | r->rdsp.put_pixels_tab, | |
825 | r->rdsp.put_chroma_pixels_tab); | |
826 | rv4_weight(r); | |
827 | } | |
828 | } | |
829 | ||
830 | static void rv34_mc_2mv_skip(RV34DecContext *r) | |
831 | { | |
832 | int i, j; | |
833 | int weighted = !r->rv30 && r->weight1 != 8192; | |
834 | ||
835 | for(j = 0; j < 2; j++) | |
836 | for(i = 0; i < 2; i++){ | |
837 | rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 0, r->rv30, | |
838 | weighted, | |
839 | r->rdsp.put_pixels_tab, | |
840 | r->rdsp.put_chroma_pixels_tab); | |
841 | rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 1, r->rv30, | |
842 | weighted, | |
843 | weighted ? r->rdsp.put_pixels_tab : r->rdsp.avg_pixels_tab, | |
844 | weighted ? r->rdsp.put_chroma_pixels_tab : r->rdsp.avg_chroma_pixels_tab); | |
845 | } | |
846 | if(weighted) | |
847 | rv4_weight(r); | |
848 | } | |
849 | ||
850 | /** number of motion vectors in each macroblock type */ | |
851 | static const int num_mvs[RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 }; | |
852 | ||
853 | /** | |
854 | * Decode motion vector differences | |
855 | * and perform motion vector reconstruction and motion compensation. | |
856 | */ | |
857 | static int rv34_decode_mv(RV34DecContext *r, int block_type) | |
858 | { | |
859 | MpegEncContext *s = &r->s; | |
860 | GetBitContext *gb = &s->gb; | |
861 | int i, j, k, l; | |
862 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; | |
863 | int next_bt; | |
864 | ||
865 | memset(r->dmv, 0, sizeof(r->dmv)); | |
866 | for(i = 0; i < num_mvs[block_type]; i++){ | |
867 | r->dmv[i][0] = svq3_get_se_golomb(gb); | |
868 | r->dmv[i][1] = svq3_get_se_golomb(gb); | |
869 | } | |
870 | switch(block_type){ | |
871 | case RV34_MB_TYPE_INTRA: | |
872 | case RV34_MB_TYPE_INTRA16x16: | |
873 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); | |
874 | return 0; | |
875 | case RV34_MB_SKIP: | |
876 | if(s->pict_type == AV_PICTURE_TYPE_P){ | |
877 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); | |
878 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); | |
879 | break; | |
880 | } | |
881 | case RV34_MB_B_DIRECT: | |
882 | //surprisingly, it uses motion scheme from next reference frame | |
883 | /* wait for the current mb row to be finished */ | |
884 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) | |
885 | ff_thread_await_progress(&s->next_picture_ptr->tf, FFMAX(0, s->mb_y-1), 0); | |
886 | ||
887 | next_bt = s->next_picture_ptr->mb_type[s->mb_x + s->mb_y * s->mb_stride]; | |
888 | if(IS_INTRA(next_bt) || IS_SKIP(next_bt)){ | |
889 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); | |
890 | ZERO8x2(s->current_picture_ptr->motion_val[1][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); | |
891 | }else | |
892 | for(j = 0; j < 2; j++) | |
893 | for(i = 0; i < 2; i++) | |
894 | for(k = 0; k < 2; k++) | |
895 | for(l = 0; l < 2; l++) | |
896 | s->current_picture_ptr->motion_val[l][mv_pos + i + j*s->b8_stride][k] = calc_add_mv(r, l, s->next_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][k]); | |
897 | if(!(IS_16X8(next_bt) || IS_8X16(next_bt) || IS_8X8(next_bt))) //we can use whole macroblock MC | |
898 | rv34_mc_2mv(r, block_type); | |
899 | else | |
900 | rv34_mc_2mv_skip(r); | |
901 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); | |
902 | break; | |
903 | case RV34_MB_P_16x16: | |
904 | case RV34_MB_P_MIX16x16: | |
905 | rv34_pred_mv(r, block_type, 0, 0); | |
906 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); | |
907 | break; | |
908 | case RV34_MB_B_FORWARD: | |
909 | case RV34_MB_B_BACKWARD: | |
910 | r->dmv[1][0] = r->dmv[0][0]; | |
911 | r->dmv[1][1] = r->dmv[0][1]; | |
912 | if(r->rv30) | |
913 | rv34_pred_mv_rv3(r, block_type, block_type == RV34_MB_B_BACKWARD); | |
914 | else | |
915 | rv34_pred_mv_b (r, block_type, block_type == RV34_MB_B_BACKWARD); | |
916 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, block_type == RV34_MB_B_BACKWARD); | |
917 | break; | |
918 | case RV34_MB_P_16x8: | |
919 | case RV34_MB_P_8x16: | |
920 | rv34_pred_mv(r, block_type, 0, 0); | |
921 | rv34_pred_mv(r, block_type, 1 + (block_type == RV34_MB_P_16x8), 1); | |
922 | if(block_type == RV34_MB_P_16x8){ | |
923 | rv34_mc_1mv(r, block_type, 0, 0, 0, 2, 1, 0); | |
924 | rv34_mc_1mv(r, block_type, 0, 8, s->b8_stride, 2, 1, 0); | |
925 | } | |
926 | if(block_type == RV34_MB_P_8x16){ | |
927 | rv34_mc_1mv(r, block_type, 0, 0, 0, 1, 2, 0); | |
928 | rv34_mc_1mv(r, block_type, 8, 0, 1, 1, 2, 0); | |
929 | } | |
930 | break; | |
931 | case RV34_MB_B_BIDIR: | |
932 | rv34_pred_mv_b (r, block_type, 0); | |
933 | rv34_pred_mv_b (r, block_type, 1); | |
934 | rv34_mc_2mv (r, block_type); | |
935 | break; | |
936 | case RV34_MB_P_8x8: | |
937 | for(i=0;i< 4;i++){ | |
938 | rv34_pred_mv(r, block_type, i, i); | |
939 | rv34_mc_1mv (r, block_type, (i&1)<<3, (i&2)<<2, (i&1)+(i>>1)*s->b8_stride, 1, 1, 0); | |
940 | } | |
941 | break; | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | /** @} */ // mv group | |
947 | ||
948 | /** | |
949 | * @name Macroblock reconstruction functions | |
950 | * @{ | |
951 | */ | |
952 | /** mapping of RV30/40 intra prediction types to standard H.264 types */ | |
953 | static const int ittrans[9] = { | |
954 | DC_PRED, VERT_PRED, HOR_PRED, DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_LEFT_PRED, | |
955 | VERT_RIGHT_PRED, VERT_LEFT_PRED, HOR_UP_PRED, HOR_DOWN_PRED, | |
956 | }; | |
957 | ||
958 | /** mapping of RV30/40 intra 16x16 prediction types to standard H.264 types */ | |
959 | static const int ittrans16[4] = { | |
960 | DC_PRED8x8, VERT_PRED8x8, HOR_PRED8x8, PLANE_PRED8x8, | |
961 | }; | |
962 | ||
963 | /** | |
964 | * Perform 4x4 intra prediction. | |
965 | */ | |
966 | static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right) | |
967 | { | |
968 | uint8_t *prev = dst - stride + 4; | |
969 | uint32_t topleft; | |
970 | ||
971 | if(!up && !left) | |
972 | itype = DC_128_PRED; | |
973 | else if(!up){ | |
974 | if(itype == VERT_PRED) itype = HOR_PRED; | |
975 | if(itype == DC_PRED) itype = LEFT_DC_PRED; | |
976 | }else if(!left){ | |
977 | if(itype == HOR_PRED) itype = VERT_PRED; | |
978 | if(itype == DC_PRED) itype = TOP_DC_PRED; | |
979 | if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; | |
980 | } | |
981 | if(!down){ | |
982 | if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; | |
983 | if(itype == HOR_UP_PRED) itype = HOR_UP_PRED_RV40_NODOWN; | |
984 | if(itype == VERT_LEFT_PRED) itype = VERT_LEFT_PRED_RV40_NODOWN; | |
985 | } | |
986 | if(!right && up){ | |
987 | topleft = dst[-stride + 3] * 0x01010101u; | |
988 | prev = (uint8_t*)&topleft; | |
989 | } | |
990 | r->h.pred4x4[itype](dst, prev, stride); | |
991 | } | |
992 | ||
993 | static inline int adjust_pred16(int itype, int up, int left) | |
994 | { | |
995 | if(!up && !left) | |
996 | itype = DC_128_PRED8x8; | |
997 | else if(!up){ | |
998 | if(itype == PLANE_PRED8x8)itype = HOR_PRED8x8; | |
999 | if(itype == VERT_PRED8x8) itype = HOR_PRED8x8; | |
1000 | if(itype == DC_PRED8x8) itype = LEFT_DC_PRED8x8; | |
1001 | }else if(!left){ | |
1002 | if(itype == PLANE_PRED8x8)itype = VERT_PRED8x8; | |
1003 | if(itype == HOR_PRED8x8) itype = VERT_PRED8x8; | |
1004 | if(itype == DC_PRED8x8) itype = TOP_DC_PRED8x8; | |
1005 | } | |
1006 | return itype; | |
1007 | } | |
1008 | ||
1009 | static inline void rv34_process_block(RV34DecContext *r, | |
1010 | uint8_t *pdst, int stride, | |
1011 | int fc, int sc, int q_dc, int q_ac) | |
1012 | { | |
1013 | MpegEncContext *s = &r->s; | |
1014 | int16_t *ptr = s->block[0]; | |
1015 | int has_ac = rv34_decode_block(ptr, &s->gb, r->cur_vlcs, | |
1016 | fc, sc, q_dc, q_ac, q_ac); | |
1017 | if(has_ac){ | |
1018 | r->rdsp.rv34_idct_add(pdst, stride, ptr); | |
1019 | }else{ | |
1020 | r->rdsp.rv34_idct_dc_add(pdst, stride, ptr[0]); | |
1021 | ptr[0] = 0; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp) | |
1026 | { | |
1027 | LOCAL_ALIGNED_16(int16_t, block16, [16]); | |
1028 | MpegEncContext *s = &r->s; | |
1029 | GetBitContext *gb = &s->gb; | |
1030 | int q_dc = rv34_qscale_tab[ r->luma_dc_quant_i[s->qscale] ], | |
1031 | q_ac = rv34_qscale_tab[s->qscale]; | |
1032 | uint8_t *dst = s->dest[0]; | |
1033 | int16_t *ptr = s->block[0]; | |
1034 | int i, j, itype, has_ac; | |
1035 | ||
1036 | memset(block16, 0, 16 * sizeof(*block16)); | |
1037 | ||
1038 | has_ac = rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac); | |
1039 | if(has_ac) | |
1040 | r->rdsp.rv34_inv_transform(block16); | |
1041 | else | |
1042 | r->rdsp.rv34_inv_transform_dc(block16); | |
1043 | ||
1044 | itype = ittrans16[intra_types[0]]; | |
1045 | itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); | |
1046 | r->h.pred16x16[itype](dst, s->linesize); | |
1047 | ||
1048 | for(j = 0; j < 4; j++){ | |
1049 | for(i = 0; i < 4; i++, cbp >>= 1){ | |
1050 | int dc = block16[i + j*4]; | |
1051 | ||
1052 | if(cbp & 1){ | |
1053 | has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); | |
1054 | }else | |
1055 | has_ac = 0; | |
1056 | ||
1057 | if(has_ac){ | |
1058 | ptr[0] = dc; | |
1059 | r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); | |
1060 | }else | |
1061 | r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); | |
1062 | } | |
1063 | ||
1064 | dst += 4*s->linesize; | |
1065 | } | |
1066 | ||
1067 | itype = ittrans16[intra_types[0]]; | |
1068 | if(itype == PLANE_PRED8x8) itype = DC_PRED8x8; | |
1069 | itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); | |
1070 | ||
1071 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; | |
1072 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; | |
1073 | ||
1074 | for(j = 1; j < 3; j++){ | |
1075 | dst = s->dest[j]; | |
1076 | r->h.pred8x8[itype](dst, s->uvlinesize); | |
1077 | for(i = 0; i < 4; i++, cbp >>= 1){ | |
1078 | uint8_t *pdst; | |
1079 | if(!(cbp & 1)) continue; | |
1080 | pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; | |
1081 | ||
1082 | rv34_process_block(r, pdst, s->uvlinesize, | |
1083 | r->chroma_vlc, 1, q_dc, q_ac); | |
1084 | } | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp) | |
1089 | { | |
1090 | MpegEncContext *s = &r->s; | |
1091 | uint8_t *dst = s->dest[0]; | |
1092 | int avail[6*8] = {0}; | |
1093 | int i, j, k; | |
1094 | int idx, q_ac, q_dc; | |
1095 | ||
1096 | // Set neighbour information. | |
1097 | if(r->avail_cache[1]) | |
1098 | avail[0] = 1; | |
1099 | if(r->avail_cache[2]) | |
1100 | avail[1] = avail[2] = 1; | |
1101 | if(r->avail_cache[3]) | |
1102 | avail[3] = avail[4] = 1; | |
1103 | if(r->avail_cache[4]) | |
1104 | avail[5] = 1; | |
1105 | if(r->avail_cache[5]) | |
1106 | avail[8] = avail[16] = 1; | |
1107 | if(r->avail_cache[9]) | |
1108 | avail[24] = avail[32] = 1; | |
1109 | ||
1110 | q_ac = rv34_qscale_tab[s->qscale]; | |
1111 | for(j = 0; j < 4; j++){ | |
1112 | idx = 9 + j*8; | |
1113 | for(i = 0; i < 4; i++, cbp >>= 1, dst += 4, idx++){ | |
1114 | rv34_pred_4x4_block(r, dst, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]); | |
1115 | avail[idx] = 1; | |
1116 | if(!(cbp & 1)) continue; | |
1117 | ||
1118 | rv34_process_block(r, dst, s->linesize, | |
1119 | r->luma_vlc, 0, q_ac, q_ac); | |
1120 | } | |
1121 | dst += s->linesize * 4 - 4*4; | |
1122 | intra_types += r->intra_types_stride; | |
1123 | } | |
1124 | ||
1125 | intra_types -= r->intra_types_stride * 4; | |
1126 | ||
1127 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; | |
1128 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; | |
1129 | ||
1130 | for(k = 0; k < 2; k++){ | |
1131 | dst = s->dest[1+k]; | |
1132 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4); | |
1133 | ||
1134 | for(j = 0; j < 2; j++){ | |
1135 | int* acache = r->avail_cache + 6 + j*4; | |
1136 | for(i = 0; i < 2; i++, cbp >>= 1, acache++){ | |
1137 | int itype = ittrans[intra_types[i*2+j*2*r->intra_types_stride]]; | |
1138 | rv34_pred_4x4_block(r, dst+4*i, s->uvlinesize, itype, acache[-4], acache[-1], !i && !j, acache[-3]); | |
1139 | acache[0] = 1; | |
1140 | ||
1141 | if(!(cbp&1)) continue; | |
1142 | ||
1143 | rv34_process_block(r, dst + 4*i, s->uvlinesize, | |
1144 | r->chroma_vlc, 1, q_dc, q_ac); | |
1145 | } | |
1146 | ||
1147 | dst += 4*s->uvlinesize; | |
1148 | } | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step) | |
1153 | { | |
1154 | int d; | |
1155 | d = motion_val[0][0] - motion_val[-step][0]; | |
1156 | if(d < -3 || d > 3) | |
1157 | return 1; | |
1158 | d = motion_val[0][1] - motion_val[-step][1]; | |
1159 | if(d < -3 || d > 3) | |
1160 | return 1; | |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | static int rv34_set_deblock_coef(RV34DecContext *r) | |
1165 | { | |
1166 | MpegEncContext *s = &r->s; | |
1167 | int hmvmask = 0, vmvmask = 0, i, j; | |
1168 | int midx = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; | |
1169 | int16_t (*motion_val)[2] = &s->current_picture_ptr->motion_val[0][midx]; | |
1170 | for(j = 0; j < 16; j += 8){ | |
1171 | for(i = 0; i < 2; i++){ | |
1172 | if(is_mv_diff_gt_3(motion_val + i, 1)) | |
1173 | vmvmask |= 0x11 << (j + i*2); | |
1174 | if((j || s->mb_y) && is_mv_diff_gt_3(motion_val + i, s->b8_stride)) | |
1175 | hmvmask |= 0x03 << (j + i*2); | |
1176 | } | |
1177 | motion_val += s->b8_stride; | |
1178 | } | |
1179 | if(s->first_slice_line) | |
1180 | hmvmask &= ~0x000F; | |
1181 | if(!s->mb_x) | |
1182 | vmvmask &= ~0x1111; | |
1183 | if(r->rv30){ //RV30 marks both subblocks on the edge for filtering | |
1184 | vmvmask |= (vmvmask & 0x4444) >> 1; | |
1185 | hmvmask |= (hmvmask & 0x0F00) >> 4; | |
1186 | if(s->mb_x) | |
1187 | r->deblock_coefs[s->mb_x - 1 + s->mb_y*s->mb_stride] |= (vmvmask & 0x1111) << 3; | |
1188 | if(!s->first_slice_line) | |
1189 | r->deblock_coefs[s->mb_x + (s->mb_y - 1)*s->mb_stride] |= (hmvmask & 0xF) << 12; | |
1190 | } | |
1191 | return hmvmask | vmvmask; | |
1192 | } | |
1193 | ||
1194 | static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types) | |
1195 | { | |
1196 | MpegEncContext *s = &r->s; | |
1197 | GetBitContext *gb = &s->gb; | |
1198 | uint8_t *dst = s->dest[0]; | |
1199 | int16_t *ptr = s->block[0]; | |
1200 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; | |
1201 | int cbp, cbp2; | |
1202 | int q_dc, q_ac, has_ac; | |
1203 | int i, j; | |
1204 | int dist; | |
1205 | ||
1206 | // Calculate which neighbours are available. Maybe it's worth optimizing too. | |
1207 | memset(r->avail_cache, 0, sizeof(r->avail_cache)); | |
1208 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); | |
1209 | dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; | |
1210 | if(s->mb_x && dist) | |
1211 | r->avail_cache[5] = | |
1212 | r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; | |
1213 | if(dist >= s->mb_width) | |
1214 | r->avail_cache[2] = | |
1215 | r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; | |
1216 | if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) | |
1217 | r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; | |
1218 | if(s->mb_x && dist > s->mb_width) | |
1219 | r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; | |
1220 | ||
1221 | s->qscale = r->si.quant; | |
1222 | cbp = cbp2 = rv34_decode_inter_mb_header(r, intra_types); | |
1223 | r->cbp_luma [mb_pos] = cbp; | |
1224 | r->cbp_chroma[mb_pos] = cbp >> 16; | |
1225 | r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos]; | |
1226 | s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; | |
1227 | ||
1228 | if(cbp == -1) | |
1229 | return -1; | |
1230 | ||
1231 | if (IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ | |
1232 | if(r->is16) rv34_output_i16x16(r, intra_types, cbp); | |
1233 | else rv34_output_intra(r, intra_types, cbp); | |
1234 | return 0; | |
1235 | } | |
1236 | ||
1237 | if(r->is16){ | |
1238 | // Only for RV34_MB_P_MIX16x16 | |
1239 | LOCAL_ALIGNED_16(int16_t, block16, [16]); | |
1240 | memset(block16, 0, 16 * sizeof(*block16)); | |
1241 | q_dc = rv34_qscale_tab[ r->luma_dc_quant_p[s->qscale] ]; | |
1242 | q_ac = rv34_qscale_tab[s->qscale]; | |
1243 | if (rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac)) | |
1244 | r->rdsp.rv34_inv_transform(block16); | |
1245 | else | |
1246 | r->rdsp.rv34_inv_transform_dc(block16); | |
1247 | ||
1248 | q_ac = rv34_qscale_tab[s->qscale]; | |
1249 | ||
1250 | for(j = 0; j < 4; j++){ | |
1251 | for(i = 0; i < 4; i++, cbp >>= 1){ | |
1252 | int dc = block16[i + j*4]; | |
1253 | ||
1254 | if(cbp & 1){ | |
1255 | has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); | |
1256 | }else | |
1257 | has_ac = 0; | |
1258 | ||
1259 | if(has_ac){ | |
1260 | ptr[0] = dc; | |
1261 | r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); | |
1262 | }else | |
1263 | r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); | |
1264 | } | |
1265 | ||
1266 | dst += 4*s->linesize; | |
1267 | } | |
1268 | ||
1269 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); | |
1270 | }else{ | |
1271 | q_ac = rv34_qscale_tab[s->qscale]; | |
1272 | ||
1273 | for(j = 0; j < 4; j++){ | |
1274 | for(i = 0; i < 4; i++, cbp >>= 1){ | |
1275 | if(!(cbp & 1)) continue; | |
1276 | ||
1277 | rv34_process_block(r, dst + 4*i, s->linesize, | |
1278 | r->luma_vlc, 0, q_ac, q_ac); | |
1279 | } | |
1280 | dst += 4*s->linesize; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; | |
1285 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; | |
1286 | ||
1287 | for(j = 1; j < 3; j++){ | |
1288 | dst = s->dest[j]; | |
1289 | for(i = 0; i < 4; i++, cbp >>= 1){ | |
1290 | uint8_t *pdst; | |
1291 | if(!(cbp & 1)) continue; | |
1292 | pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; | |
1293 | ||
1294 | rv34_process_block(r, pdst, s->uvlinesize, | |
1295 | r->chroma_vlc, 1, q_dc, q_ac); | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | return 0; | |
1300 | } | |
1301 | ||
1302 | static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types) | |
1303 | { | |
1304 | MpegEncContext *s = &r->s; | |
1305 | int cbp, dist; | |
1306 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; | |
1307 | ||
1308 | // Calculate which neighbours are available. Maybe it's worth optimizing too. | |
1309 | memset(r->avail_cache, 0, sizeof(r->avail_cache)); | |
1310 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); | |
1311 | dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; | |
1312 | if(s->mb_x && dist) | |
1313 | r->avail_cache[5] = | |
1314 | r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; | |
1315 | if(dist >= s->mb_width) | |
1316 | r->avail_cache[2] = | |
1317 | r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; | |
1318 | if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) | |
1319 | r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; | |
1320 | if(s->mb_x && dist > s->mb_width) | |
1321 | r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; | |
1322 | ||
1323 | s->qscale = r->si.quant; | |
1324 | cbp = rv34_decode_intra_mb_header(r, intra_types); | |
1325 | r->cbp_luma [mb_pos] = cbp; | |
1326 | r->cbp_chroma[mb_pos] = cbp >> 16; | |
1327 | r->deblock_coefs[mb_pos] = 0xFFFF; | |
1328 | s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; | |
1329 | ||
1330 | if(cbp == -1) | |
1331 | return -1; | |
1332 | ||
1333 | if(r->is16){ | |
1334 | rv34_output_i16x16(r, intra_types, cbp); | |
1335 | return 0; | |
1336 | } | |
1337 | ||
1338 | rv34_output_intra(r, intra_types, cbp); | |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | static int check_slice_end(RV34DecContext *r, MpegEncContext *s) | |
1343 | { | |
1344 | int bits; | |
1345 | if(s->mb_y >= s->mb_height) | |
1346 | return 1; | |
1347 | if(!s->mb_num_left) | |
1348 | return 1; | |
1349 | if(r->s.mb_skip_run > 1) | |
1350 | return 0; | |
1351 | bits = get_bits_left(&s->gb); | |
1352 | if(bits <= 0 || (bits < 8 && !show_bits(&s->gb, bits))) | |
1353 | return 1; | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1357 | ||
1358 | static void rv34_decoder_free(RV34DecContext *r) | |
1359 | { | |
1360 | av_freep(&r->intra_types_hist); | |
1361 | r->intra_types = NULL; | |
1362 | av_freep(&r->tmp_b_block_base); | |
1363 | av_freep(&r->mb_type); | |
1364 | av_freep(&r->cbp_luma); | |
1365 | av_freep(&r->cbp_chroma); | |
1366 | av_freep(&r->deblock_coefs); | |
1367 | } | |
1368 | ||
1369 | ||
1370 | static int rv34_decoder_alloc(RV34DecContext *r) | |
1371 | { | |
1372 | r->intra_types_stride = r->s.mb_width * 4 + 4; | |
1373 | ||
1374 | r->cbp_chroma = av_mallocz(r->s.mb_stride * r->s.mb_height * | |
1375 | sizeof(*r->cbp_chroma)); | |
1376 | r->cbp_luma = av_mallocz(r->s.mb_stride * r->s.mb_height * | |
1377 | sizeof(*r->cbp_luma)); | |
1378 | r->deblock_coefs = av_mallocz(r->s.mb_stride * r->s.mb_height * | |
1379 | sizeof(*r->deblock_coefs)); | |
1380 | r->intra_types_hist = av_malloc(r->intra_types_stride * 4 * 2 * | |
1381 | sizeof(*r->intra_types_hist)); | |
1382 | r->mb_type = av_mallocz(r->s.mb_stride * r->s.mb_height * | |
1383 | sizeof(*r->mb_type)); | |
1384 | ||
1385 | if (!(r->cbp_chroma && r->cbp_luma && r->deblock_coefs && | |
1386 | r->intra_types_hist && r->mb_type)) { | |
1387 | rv34_decoder_free(r); | |
1388 | return AVERROR(ENOMEM); | |
1389 | } | |
1390 | ||
1391 | r->intra_types = r->intra_types_hist + r->intra_types_stride * 4; | |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | ||
1397 | static int rv34_decoder_realloc(RV34DecContext *r) | |
1398 | { | |
1399 | rv34_decoder_free(r); | |
1400 | return rv34_decoder_alloc(r); | |
1401 | } | |
1402 | ||
1403 | ||
1404 | static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int buf_size) | |
1405 | { | |
1406 | MpegEncContext *s = &r->s; | |
1407 | GetBitContext *gb = &s->gb; | |
1408 | int mb_pos, slice_type; | |
1409 | int res; | |
1410 | ||
1411 | init_get_bits(&r->s.gb, buf, buf_size*8); | |
1412 | res = r->parse_slice_header(r, gb, &r->si); | |
1413 | if(res < 0){ | |
1414 | av_log(s->avctx, AV_LOG_ERROR, "Incorrect or unknown slice header\n"); | |
1415 | return -1; | |
1416 | } | |
1417 | ||
1418 | slice_type = r->si.type ? r->si.type : AV_PICTURE_TYPE_I; | |
1419 | if (slice_type != s->pict_type) { | |
1420 | av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n"); | |
1421 | return AVERROR_INVALIDDATA; | |
1422 | } | |
1423 | if (s->width != r->si.width || s->height != r->si.height) { | |
1424 | av_log(s->avctx, AV_LOG_ERROR, "Size mismatch\n"); | |
1425 | return AVERROR_INVALIDDATA; | |
1426 | } | |
1427 | ||
1428 | r->si.end = end; | |
1429 | s->qscale = r->si.quant; | |
1430 | s->mb_num_left = r->si.end - r->si.start; | |
1431 | r->s.mb_skip_run = 0; | |
1432 | ||
1433 | mb_pos = s->mb_x + s->mb_y * s->mb_width; | |
1434 | if(r->si.start != mb_pos){ | |
1435 | av_log(s->avctx, AV_LOG_ERROR, "Slice indicates MB offset %d, got %d\n", r->si.start, mb_pos); | |
1436 | s->mb_x = r->si.start % s->mb_width; | |
1437 | s->mb_y = r->si.start / s->mb_width; | |
1438 | } | |
1439 | memset(r->intra_types_hist, -1, r->intra_types_stride * 4 * 2 * sizeof(*r->intra_types_hist)); | |
1440 | s->first_slice_line = 1; | |
1441 | s->resync_mb_x = s->mb_x; | |
1442 | s->resync_mb_y = s->mb_y; | |
1443 | ||
1444 | ff_init_block_index(s); | |
1445 | while(!check_slice_end(r, s)) { | |
1446 | ff_update_block_index(s); | |
1447 | ||
1448 | if(r->si.type) | |
1449 | res = rv34_decode_inter_macroblock(r, r->intra_types + s->mb_x * 4 + 4); | |
1450 | else | |
1451 | res = rv34_decode_intra_macroblock(r, r->intra_types + s->mb_x * 4 + 4); | |
1452 | if(res < 0){ | |
1453 | ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_ERROR); | |
1454 | return -1; | |
1455 | } | |
1456 | if (++s->mb_x == s->mb_width) { | |
1457 | s->mb_x = 0; | |
1458 | s->mb_y++; | |
1459 | ff_init_block_index(s); | |
1460 | ||
1461 | memmove(r->intra_types_hist, r->intra_types, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); | |
1462 | memset(r->intra_types, -1, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); | |
1463 | ||
1464 | if(r->loop_filter && s->mb_y >= 2) | |
1465 | r->loop_filter(r, s->mb_y - 2); | |
1466 | ||
1467 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) | |
1468 | ff_thread_report_progress(&s->current_picture_ptr->tf, | |
1469 | s->mb_y - 2, 0); | |
1470 | ||
1471 | } | |
1472 | if(s->mb_x == s->resync_mb_x) | |
1473 | s->first_slice_line=0; | |
1474 | s->mb_num_left--; | |
1475 | } | |
1476 | ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END); | |
1477 | ||
1478 | return s->mb_y == s->mb_height; | |
1479 | } | |
1480 | ||
1481 | /** @} */ // recons group end | |
1482 | ||
1483 | /** | |
1484 | * Initialize decoder. | |
1485 | */ | |
1486 | av_cold int ff_rv34_decode_init(AVCodecContext *avctx) | |
1487 | { | |
1488 | RV34DecContext *r = avctx->priv_data; | |
1489 | MpegEncContext *s = &r->s; | |
1490 | int ret; | |
1491 | ||
1492 | ff_mpv_decode_defaults(s); | |
1493 | ff_mpv_decode_init(s, avctx); | |
1494 | s->out_format = FMT_H263; | |
1495 | ||
1496 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; | |
1497 | avctx->has_b_frames = 1; | |
1498 | s->low_delay = 0; | |
1499 | ||
1500 | ff_mpv_idct_init(s); | |
1501 | if ((ret = ff_mpv_common_init(s)) < 0) | |
1502 | return ret; | |
1503 | ||
1504 | ff_h264_pred_init(&r->h, AV_CODEC_ID_RV40, 8, 1); | |
1505 | ||
1506 | #if CONFIG_RV30_DECODER | |
1507 | if (avctx->codec_id == AV_CODEC_ID_RV30) | |
1508 | ff_rv30dsp_init(&r->rdsp); | |
1509 | #endif | |
1510 | #if CONFIG_RV40_DECODER | |
1511 | if (avctx->codec_id == AV_CODEC_ID_RV40) | |
1512 | ff_rv40dsp_init(&r->rdsp); | |
1513 | #endif | |
1514 | ||
1515 | if ((ret = rv34_decoder_alloc(r)) < 0) { | |
1516 | ff_mpv_common_end(&r->s); | |
1517 | return ret; | |
1518 | } | |
1519 | ||
1520 | if(!intra_vlcs[0].cbppattern[0].bits) | |
1521 | rv34_init_tables(); | |
1522 | ||
1523 | avctx->internal->allocate_progress = 1; | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx) | |
1529 | { | |
1530 | int err; | |
1531 | RV34DecContext *r = avctx->priv_data; | |
1532 | ||
1533 | r->s.avctx = avctx; | |
1534 | ||
1535 | if (avctx->internal->is_copy) { | |
1536 | r->tmp_b_block_base = NULL; | |
1537 | ff_mpv_idct_init(&r->s); | |
1538 | if ((err = ff_mpv_common_init(&r->s)) < 0) | |
1539 | return err; | |
1540 | if ((err = rv34_decoder_alloc(r)) < 0) { | |
1541 | ff_mpv_common_end(&r->s); | |
1542 | return err; | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) | |
1550 | { | |
1551 | RV34DecContext *r = dst->priv_data, *r1 = src->priv_data; | |
1552 | MpegEncContext * const s = &r->s, * const s1 = &r1->s; | |
1553 | int err; | |
1554 | ||
1555 | if (dst == src || !s1->context_initialized) | |
1556 | return 0; | |
1557 | ||
1558 | if (s->height != s1->height || s->width != s1->width) { | |
1559 | s->height = s1->height; | |
1560 | s->width = s1->width; | |
1561 | if ((err = ff_mpv_common_frame_size_change(s)) < 0) | |
1562 | return err; | |
1563 | if ((err = rv34_decoder_realloc(r)) < 0) | |
1564 | return err; | |
1565 | } | |
1566 | ||
1567 | r->cur_pts = r1->cur_pts; | |
1568 | r->last_pts = r1->last_pts; | |
1569 | r->next_pts = r1->next_pts; | |
1570 | ||
1571 | memset(&r->si, 0, sizeof(r->si)); | |
1572 | ||
1573 | // Do no call ff_mpeg_update_thread_context on a partially initialized | |
1574 | // decoder context. | |
1575 | if (!s1->linesize) | |
1576 | return 0; | |
1577 | ||
1578 | return ff_mpeg_update_thread_context(dst, src); | |
1579 | } | |
1580 | ||
1581 | static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n) | |
1582 | { | |
1583 | if(avctx->slice_count) return avctx->slice_offset[n]; | |
1584 | else return AV_RL32(buf + n*8 - 4) == 1 ? AV_RL32(buf + n*8) : AV_RB32(buf + n*8); | |
1585 | } | |
1586 | ||
1587 | static int finish_frame(AVCodecContext *avctx, AVFrame *pict) | |
1588 | { | |
1589 | RV34DecContext *r = avctx->priv_data; | |
1590 | MpegEncContext *s = &r->s; | |
1591 | int got_picture = 0, ret; | |
1592 | ||
1593 | ff_er_frame_end(&s->er); | |
1594 | ff_mpv_frame_end(s); | |
1595 | s->mb_num_left = 0; | |
1596 | ||
1597 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) | |
1598 | ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); | |
1599 | ||
1600 | if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) { | |
1601 | if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0) | |
1602 | return ret; | |
1603 | ff_print_debug_info(s, s->current_picture_ptr, pict); | |
1604 | ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1); | |
1605 | got_picture = 1; | |
1606 | } else if (s->last_picture_ptr) { | |
1607 | if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0) | |
1608 | return ret; | |
1609 | ff_print_debug_info(s, s->last_picture_ptr, pict); | |
1610 | ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1); | |
1611 | got_picture = 1; | |
1612 | } | |
1613 | ||
1614 | return got_picture; | |
1615 | } | |
1616 | ||
1617 | static AVRational update_sar(int old_w, int old_h, AVRational sar, int new_w, int new_h) | |
1618 | { | |
1619 | // attempt to keep aspect during typical resolution switches | |
1620 | if (!sar.num) | |
1621 | sar = (AVRational){1, 1}; | |
1622 | ||
1623 | sar = av_mul_q(sar, (AVRational){new_h * old_w, new_w * old_h}); | |
1624 | return sar; | |
1625 | } | |
1626 | ||
1627 | int ff_rv34_decode_frame(AVCodecContext *avctx, | |
1628 | void *data, int *got_picture_ptr, | |
1629 | AVPacket *avpkt) | |
1630 | { | |
1631 | const uint8_t *buf = avpkt->data; | |
1632 | int buf_size = avpkt->size; | |
1633 | RV34DecContext *r = avctx->priv_data; | |
1634 | MpegEncContext *s = &r->s; | |
1635 | AVFrame *pict = data; | |
1636 | SliceInfo si; | |
1637 | int i, ret; | |
1638 | int slice_count; | |
1639 | const uint8_t *slices_hdr = NULL; | |
1640 | int last = 0; | |
1641 | ||
1642 | /* no supplementary picture */ | |
1643 | if (buf_size == 0) { | |
1644 | /* special case for last picture */ | |
1645 | if (s->low_delay==0 && s->next_picture_ptr) { | |
1646 | if ((ret = av_frame_ref(pict, s->next_picture_ptr->f)) < 0) | |
1647 | return ret; | |
1648 | s->next_picture_ptr = NULL; | |
1649 | ||
1650 | *got_picture_ptr = 1; | |
1651 | } | |
1652 | return 0; | |
1653 | } | |
1654 | ||
1655 | if(!avctx->slice_count){ | |
1656 | slice_count = (*buf++) + 1; | |
1657 | slices_hdr = buf + 4; | |
1658 | buf += 8 * slice_count; | |
1659 | buf_size -= 1 + 8 * slice_count; | |
1660 | }else | |
1661 | slice_count = avctx->slice_count; | |
1662 | ||
1663 | //parse first slice header to check whether this frame can be decoded | |
1664 | if(get_slice_offset(avctx, slices_hdr, 0) < 0 || | |
1665 | get_slice_offset(avctx, slices_hdr, 0) > buf_size){ | |
1666 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); | |
1667 | return AVERROR_INVALIDDATA; | |
1668 | } | |
1669 | init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8); | |
1670 | if(r->parse_slice_header(r, &r->s.gb, &si) < 0 || si.start){ | |
1671 | av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n"); | |
1672 | return AVERROR_INVALIDDATA; | |
1673 | } | |
1674 | if ((!s->last_picture_ptr || !s->last_picture_ptr->f->data[0]) && | |
1675 | si.type == AV_PICTURE_TYPE_B) { | |
1676 | av_log(avctx, AV_LOG_ERROR, "Invalid decoder state: B-frame without " | |
1677 | "reference data.\n"); | |
1678 | return AVERROR_INVALIDDATA; | |
1679 | } | |
1680 | if( (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B) | |
1681 | || (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I) | |
1682 | || avctx->skip_frame >= AVDISCARD_ALL) | |
1683 | return avpkt->size; | |
1684 | ||
1685 | /* first slice */ | |
1686 | if (si.start == 0) { | |
1687 | if (s->mb_num_left > 0 && s->current_picture_ptr) { | |
1688 | av_log(avctx, AV_LOG_ERROR, "New frame but still %d MB left.\n", | |
1689 | s->mb_num_left); | |
1690 | ff_er_frame_end(&s->er); | |
1691 | ff_mpv_frame_end(s); | |
1692 | } | |
1693 | ||
1694 | if (s->width != si.width || s->height != si.height) { | |
1695 | int err; | |
1696 | ||
1697 | av_log(s->avctx, AV_LOG_WARNING, "Changing dimensions to %dx%d\n", | |
1698 | si.width, si.height); | |
1699 | ||
1700 | if (av_image_check_size(si.width, si.height, 0, s->avctx)) | |
1701 | return AVERROR_INVALIDDATA; | |
1702 | ||
1703 | s->avctx->sample_aspect_ratio = update_sar( | |
1704 | s->width, s->height, s->avctx->sample_aspect_ratio, | |
1705 | si.width, si.height); | |
1706 | s->width = si.width; | |
1707 | s->height = si.height; | |
1708 | ||
1709 | err = ff_set_dimensions(s->avctx, s->width, s->height); | |
1710 | if (err < 0) | |
1711 | return err; | |
1712 | ||
1713 | if ((err = ff_mpv_common_frame_size_change(s)) < 0) | |
1714 | return err; | |
1715 | if ((err = rv34_decoder_realloc(r)) < 0) | |
1716 | return err; | |
1717 | } | |
1718 | s->pict_type = si.type ? si.type : AV_PICTURE_TYPE_I; | |
1719 | if (ff_mpv_frame_start(s, s->avctx) < 0) | |
1720 | return -1; | |
1721 | ff_mpeg_er_frame_start(s); | |
1722 | if (!r->tmp_b_block_base) { | |
1723 | int i; | |
1724 | ||
1725 | r->tmp_b_block_base = av_malloc(s->linesize * 48); | |
1726 | for (i = 0; i < 2; i++) | |
1727 | r->tmp_b_block_y[i] = r->tmp_b_block_base | |
1728 | + i * 16 * s->linesize; | |
1729 | for (i = 0; i < 4; i++) | |
1730 | r->tmp_b_block_uv[i] = r->tmp_b_block_base + 32 * s->linesize | |
1731 | + (i >> 1) * 8 * s->uvlinesize | |
1732 | + (i & 1) * 16; | |
1733 | } | |
1734 | r->cur_pts = si.pts; | |
1735 | if (s->pict_type != AV_PICTURE_TYPE_B) { | |
1736 | r->last_pts = r->next_pts; | |
1737 | r->next_pts = r->cur_pts; | |
1738 | } else { | |
1739 | int refdist = GET_PTS_DIFF(r->next_pts, r->last_pts); | |
1740 | int dist0 = GET_PTS_DIFF(r->cur_pts, r->last_pts); | |
1741 | int dist1 = GET_PTS_DIFF(r->next_pts, r->cur_pts); | |
1742 | ||
1743 | if(!refdist){ | |
1744 | r->mv_weight1 = r->mv_weight2 = r->weight1 = r->weight2 = 8192; | |
1745 | r->scaled_weight = 0; | |
1746 | }else{ | |
1747 | r->mv_weight1 = (dist0 << 14) / refdist; | |
1748 | r->mv_weight2 = (dist1 << 14) / refdist; | |
1749 | if((r->mv_weight1|r->mv_weight2) & 511){ | |
1750 | r->weight1 = r->mv_weight1; | |
1751 | r->weight2 = r->mv_weight2; | |
1752 | r->scaled_weight = 0; | |
1753 | }else{ | |
1754 | r->weight1 = r->mv_weight1 >> 9; | |
1755 | r->weight2 = r->mv_weight2 >> 9; | |
1756 | r->scaled_weight = 1; | |
1757 | } | |
1758 | } | |
1759 | } | |
1760 | s->mb_x = s->mb_y = 0; | |
1761 | ff_thread_finish_setup(s->avctx); | |
1762 | } else if (HAVE_THREADS && | |
1763 | (s->avctx->active_thread_type & FF_THREAD_FRAME)) { | |
1764 | av_log(s->avctx, AV_LOG_ERROR, "Decoder needs full frames in frame " | |
1765 | "multithreading mode (start MB is %d).\n", si.start); | |
1766 | return AVERROR_INVALIDDATA; | |
1767 | } | |
1768 | ||
1769 | for(i = 0; i < slice_count; i++){ | |
1770 | int offset = get_slice_offset(avctx, slices_hdr, i); | |
1771 | int size; | |
1772 | if(i+1 == slice_count) | |
1773 | size = buf_size - offset; | |
1774 | else | |
1775 | size = get_slice_offset(avctx, slices_hdr, i+1) - offset; | |
1776 | ||
1777 | if(offset < 0 || offset > buf_size){ | |
1778 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); | |
1779 | break; | |
1780 | } | |
1781 | ||
1782 | r->si.end = s->mb_width * s->mb_height; | |
1783 | s->mb_num_left = r->s.mb_x + r->s.mb_y*r->s.mb_width - r->si.start; | |
1784 | ||
1785 | if(i+1 < slice_count){ | |
1786 | if (get_slice_offset(avctx, slices_hdr, i+1) < 0 || | |
1787 | get_slice_offset(avctx, slices_hdr, i+1) > buf_size) { | |
1788 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); | |
1789 | break; | |
1790 | } | |
1791 | init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, i+1), (buf_size-get_slice_offset(avctx, slices_hdr, i+1))*8); | |
1792 | if(r->parse_slice_header(r, &r->s.gb, &si) < 0){ | |
1793 | if(i+2 < slice_count) | |
1794 | size = get_slice_offset(avctx, slices_hdr, i+2) - offset; | |
1795 | else | |
1796 | size = buf_size - offset; | |
1797 | }else | |
1798 | r->si.end = si.start; | |
1799 | } | |
1800 | if (size < 0 || size > buf_size - offset) { | |
1801 | av_log(avctx, AV_LOG_ERROR, "Slice size is invalid\n"); | |
1802 | break; | |
1803 | } | |
1804 | last = rv34_decode_slice(r, r->si.end, buf + offset, size); | |
1805 | if(last) | |
1806 | break; | |
1807 | } | |
1808 | ||
1809 | if (s->current_picture_ptr) { | |
1810 | if (last) { | |
1811 | if(r->loop_filter) | |
1812 | r->loop_filter(r, s->mb_height - 1); | |
1813 | ||
1814 | ret = finish_frame(avctx, pict); | |
1815 | if (ret < 0) | |
1816 | return ret; | |
1817 | *got_picture_ptr = ret; | |
1818 | } else if (HAVE_THREADS && | |
1819 | (s->avctx->active_thread_type & FF_THREAD_FRAME)) { | |
1820 | av_log(avctx, AV_LOG_INFO, "marking unfished frame as finished\n"); | |
1821 | /* always mark the current frame as finished, frame-mt supports | |
1822 | * only complete frames */ | |
1823 | ff_er_frame_end(&s->er); | |
1824 | ff_mpv_frame_end(s); | |
1825 | s->mb_num_left = 0; | |
1826 | ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); | |
1827 | return AVERROR_INVALIDDATA; | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | return avpkt->size; | |
1832 | } | |
1833 | ||
1834 | av_cold int ff_rv34_decode_end(AVCodecContext *avctx) | |
1835 | { | |
1836 | RV34DecContext *r = avctx->priv_data; | |
1837 | ||
1838 | ff_mpv_common_end(&r->s); | |
1839 | rv34_decoder_free(r); | |
1840 | ||
1841 | return 0; | |
1842 | } |