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1 | /* |
2 | * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "libavutil/intmath.h" | |
22 | #include "libavutil/log.h" | |
23 | #include "libavutil/opt.h" | |
24 | #include "avcodec.h" | |
25 | #include "me_cmp.h" | |
26 | #include "snow_dwt.h" | |
27 | #include "internal.h" | |
28 | #include "snow.h" | |
29 | #include "snowdata.h" | |
30 | ||
31 | #include "rangecoder.h" | |
32 | #include "mathops.h" | |
33 | #include "h263.h" | |
34 | ||
35 | ||
36 | void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, | |
37 | int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){ | |
38 | int y, x; | |
39 | IDWTELEM * dst; | |
40 | for(y=0; y<b_h; y++){ | |
41 | //FIXME ugly misuse of obmc_stride | |
42 | const uint8_t *obmc1= obmc + y*obmc_stride; | |
43 | const uint8_t *obmc2= obmc1+ (obmc_stride>>1); | |
44 | const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); | |
45 | const uint8_t *obmc4= obmc3+ (obmc_stride>>1); | |
46 | dst = slice_buffer_get_line(sb, src_y + y); | |
47 | for(x=0; x<b_w; x++){ | |
48 | int v= obmc1[x] * block[3][x + y*src_stride] | |
49 | +obmc2[x] * block[2][x + y*src_stride] | |
50 | +obmc3[x] * block[1][x + y*src_stride] | |
51 | +obmc4[x] * block[0][x + y*src_stride]; | |
52 | ||
53 | v <<= 8 - LOG2_OBMC_MAX; | |
54 | if(FRAC_BITS != 8){ | |
55 | v >>= 8 - FRAC_BITS; | |
56 | } | |
57 | if(add){ | |
58 | v += dst[x + src_x]; | |
59 | v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; | |
60 | if(v&(~255)) v= ~(v>>31); | |
61 | dst8[x + y*src_stride] = v; | |
62 | }else{ | |
63 | dst[x + src_x] -= v; | |
64 | } | |
65 | } | |
66 | } | |
67 | } | |
68 | ||
69 | int ff_snow_get_buffer(SnowContext *s, AVFrame *frame) | |
70 | { | |
71 | int ret, i; | |
72 | int edges_needed = av_codec_is_encoder(s->avctx->codec); | |
73 | ||
74 | frame->width = s->avctx->width ; | |
75 | frame->height = s->avctx->height; | |
76 | if (edges_needed) { | |
77 | frame->width += 2 * EDGE_WIDTH; | |
78 | frame->height += 2 * EDGE_WIDTH; | |
79 | } | |
80 | if ((ret = ff_get_buffer(s->avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) | |
81 | return ret; | |
82 | if (edges_needed) { | |
83 | for (i = 0; frame->data[i]; i++) { | |
84 | int offset = (EDGE_WIDTH >> (i ? s->chroma_v_shift : 0)) * | |
85 | frame->linesize[i] + | |
86 | (EDGE_WIDTH >> (i ? s->chroma_h_shift : 0)); | |
87 | frame->data[i] += offset; | |
88 | } | |
89 | frame->width = s->avctx->width; | |
90 | frame->height = s->avctx->height; | |
91 | } | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | void ff_snow_reset_contexts(SnowContext *s){ //FIXME better initial contexts | |
97 | int plane_index, level, orientation; | |
98 | ||
99 | for(plane_index=0; plane_index<3; plane_index++){ | |
100 | for(level=0; level<MAX_DECOMPOSITIONS; level++){ | |
101 | for(orientation=level ? 1:0; orientation<4; orientation++){ | |
102 | memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state)); | |
103 | } | |
104 | } | |
105 | } | |
106 | memset(s->header_state, MID_STATE, sizeof(s->header_state)); | |
107 | memset(s->block_state, MID_STATE, sizeof(s->block_state)); | |
108 | } | |
109 | ||
110 | int ff_snow_alloc_blocks(SnowContext *s){ | |
111 | int w= FF_CEIL_RSHIFT(s->avctx->width, LOG2_MB_SIZE); | |
112 | int h= FF_CEIL_RSHIFT(s->avctx->height, LOG2_MB_SIZE); | |
113 | ||
114 | s->b_width = w; | |
115 | s->b_height= h; | |
116 | ||
117 | av_free(s->block); | |
118 | s->block= av_mallocz_array(w * h, sizeof(BlockNode) << (s->block_max_depth*2)); | |
119 | if (!s->block) | |
120 | return AVERROR(ENOMEM); | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
125 | static av_cold void init_qexp(void){ | |
126 | int i; | |
127 | double v=128; | |
128 | ||
129 | for(i=0; i<QROOT; i++){ | |
130 | ff_qexp[i]= lrintf(v); | |
131 | v *= pow(2, 1.0 / QROOT); | |
132 | } | |
133 | } | |
134 | static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy){ | |
135 | static const uint8_t weight[64]={ | |
136 | 8,7,6,5,4,3,2,1, | |
137 | 7,7,0,0,0,0,0,1, | |
138 | 6,0,6,0,0,0,2,0, | |
139 | 5,0,0,5,0,3,0,0, | |
140 | 4,0,0,0,4,0,0,0, | |
141 | 3,0,0,5,0,3,0,0, | |
142 | 2,0,6,0,0,0,2,0, | |
143 | 1,7,0,0,0,0,0,1, | |
144 | }; | |
145 | ||
146 | static const uint8_t brane[256]={ | |
147 | 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12, | |
148 | 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52, | |
149 | 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc, | |
150 | 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc, | |
151 | 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc, | |
152 | 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc, | |
153 | 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc, | |
154 | 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16, | |
155 | 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56, | |
156 | 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96, | |
157 | 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc, | |
158 | 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc, | |
159 | 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc, | |
160 | 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc, | |
161 | 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc, | |
162 | 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A, | |
163 | }; | |
164 | ||
165 | static const uint8_t needs[16]={ | |
166 | 0,1,0,0, | |
167 | 2,4,2,0, | |
168 | 0,1,0,0, | |
169 | 15 | |
170 | }; | |
171 | ||
172 | int x, y, b, r, l; | |
173 | int16_t tmpIt [64*(32+HTAPS_MAX)]; | |
174 | uint8_t tmp2t[3][64*(32+HTAPS_MAX)]; | |
175 | int16_t *tmpI= tmpIt; | |
176 | uint8_t *tmp2= tmp2t[0]; | |
177 | const uint8_t *hpel[11]; | |
178 | av_assert2(dx<16 && dy<16); | |
179 | r= brane[dx + 16*dy]&15; | |
180 | l= brane[dx + 16*dy]>>4; | |
181 | ||
182 | b= needs[l] | needs[r]; | |
183 | if(p && !p->diag_mc) | |
184 | b= 15; | |
185 | ||
186 | if(b&5){ | |
187 | for(y=0; y < b_h+HTAPS_MAX-1; y++){ | |
188 | for(x=0; x < b_w; x++){ | |
189 | int a_1=src[x + HTAPS_MAX/2-4]; | |
190 | int a0= src[x + HTAPS_MAX/2-3]; | |
191 | int a1= src[x + HTAPS_MAX/2-2]; | |
192 | int a2= src[x + HTAPS_MAX/2-1]; | |
193 | int a3= src[x + HTAPS_MAX/2+0]; | |
194 | int a4= src[x + HTAPS_MAX/2+1]; | |
195 | int a5= src[x + HTAPS_MAX/2+2]; | |
196 | int a6= src[x + HTAPS_MAX/2+3]; | |
197 | int am=0; | |
198 | if(!p || p->fast_mc){ | |
199 | am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); | |
200 | tmpI[x]= am; | |
201 | am= (am+16)>>5; | |
202 | }else{ | |
203 | am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6); | |
204 | tmpI[x]= am; | |
205 | am= (am+32)>>6; | |
206 | } | |
207 | ||
208 | if(am&(~255)) am= ~(am>>31); | |
209 | tmp2[x]= am; | |
210 | } | |
211 | tmpI+= 64; | |
212 | tmp2+= 64; | |
213 | src += stride; | |
214 | } | |
215 | src -= stride*y; | |
216 | } | |
217 | src += HTAPS_MAX/2 - 1; | |
218 | tmp2= tmp2t[1]; | |
219 | ||
220 | if(b&2){ | |
221 | for(y=0; y < b_h; y++){ | |
222 | for(x=0; x < b_w+1; x++){ | |
223 | int a_1=src[x + (HTAPS_MAX/2-4)*stride]; | |
224 | int a0= src[x + (HTAPS_MAX/2-3)*stride]; | |
225 | int a1= src[x + (HTAPS_MAX/2-2)*stride]; | |
226 | int a2= src[x + (HTAPS_MAX/2-1)*stride]; | |
227 | int a3= src[x + (HTAPS_MAX/2+0)*stride]; | |
228 | int a4= src[x + (HTAPS_MAX/2+1)*stride]; | |
229 | int a5= src[x + (HTAPS_MAX/2+2)*stride]; | |
230 | int a6= src[x + (HTAPS_MAX/2+3)*stride]; | |
231 | int am=0; | |
232 | if(!p || p->fast_mc) | |
233 | am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5; | |
234 | else | |
235 | am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6; | |
236 | ||
237 | if(am&(~255)) am= ~(am>>31); | |
238 | tmp2[x]= am; | |
239 | } | |
240 | src += stride; | |
241 | tmp2+= 64; | |
242 | } | |
243 | src -= stride*y; | |
244 | } | |
245 | src += stride*(HTAPS_MAX/2 - 1); | |
246 | tmp2= tmp2t[2]; | |
247 | tmpI= tmpIt; | |
248 | if(b&4){ | |
249 | for(y=0; y < b_h; y++){ | |
250 | for(x=0; x < b_w; x++){ | |
251 | int a_1=tmpI[x + (HTAPS_MAX/2-4)*64]; | |
252 | int a0= tmpI[x + (HTAPS_MAX/2-3)*64]; | |
253 | int a1= tmpI[x + (HTAPS_MAX/2-2)*64]; | |
254 | int a2= tmpI[x + (HTAPS_MAX/2-1)*64]; | |
255 | int a3= tmpI[x + (HTAPS_MAX/2+0)*64]; | |
256 | int a4= tmpI[x + (HTAPS_MAX/2+1)*64]; | |
257 | int a5= tmpI[x + (HTAPS_MAX/2+2)*64]; | |
258 | int a6= tmpI[x + (HTAPS_MAX/2+3)*64]; | |
259 | int am=0; | |
260 | if(!p || p->fast_mc) | |
261 | am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10; | |
262 | else | |
263 | am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12; | |
264 | if(am&(~255)) am= ~(am>>31); | |
265 | tmp2[x]= am; | |
266 | } | |
267 | tmpI+= 64; | |
268 | tmp2+= 64; | |
269 | } | |
270 | } | |
271 | ||
272 | hpel[ 0]= src; | |
273 | hpel[ 1]= tmp2t[0] + 64*(HTAPS_MAX/2-1); | |
274 | hpel[ 2]= src + 1; | |
275 | ||
276 | hpel[ 4]= tmp2t[1]; | |
277 | hpel[ 5]= tmp2t[2]; | |
278 | hpel[ 6]= tmp2t[1] + 1; | |
279 | ||
280 | hpel[ 8]= src + stride; | |
281 | hpel[ 9]= hpel[1] + 64; | |
282 | hpel[10]= hpel[8] + 1; | |
283 | ||
284 | #define MC_STRIDE(x) (needs[x] ? 64 : stride) | |
285 | ||
286 | if(b==15){ | |
287 | int dxy = dx / 8 + dy / 8 * 4; | |
288 | const uint8_t *src1 = hpel[dxy ]; | |
289 | const uint8_t *src2 = hpel[dxy + 1]; | |
290 | const uint8_t *src3 = hpel[dxy + 4]; | |
291 | const uint8_t *src4 = hpel[dxy + 5]; | |
292 | int stride1 = MC_STRIDE(dxy); | |
293 | int stride2 = MC_STRIDE(dxy + 1); | |
294 | int stride3 = MC_STRIDE(dxy + 4); | |
295 | int stride4 = MC_STRIDE(dxy + 5); | |
296 | dx&=7; | |
297 | dy&=7; | |
298 | for(y=0; y < b_h; y++){ | |
299 | for(x=0; x < b_w; x++){ | |
300 | dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+ | |
301 | (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6; | |
302 | } | |
303 | src1+=stride1; | |
304 | src2+=stride2; | |
305 | src3+=stride3; | |
306 | src4+=stride4; | |
307 | dst +=stride; | |
308 | } | |
309 | }else{ | |
310 | const uint8_t *src1= hpel[l]; | |
311 | const uint8_t *src2= hpel[r]; | |
312 | int stride1 = MC_STRIDE(l); | |
313 | int stride2 = MC_STRIDE(r); | |
314 | int a= weight[((dx&7) + (8*(dy&7)))]; | |
315 | int b= 8-a; | |
316 | for(y=0; y < b_h; y++){ | |
317 | for(x=0; x < b_w; x++){ | |
318 | dst[x]= (a*src1[x] + b*src2[x] + 4)>>3; | |
319 | } | |
320 | src1+=stride1; | |
321 | src2+=stride2; | |
322 | dst +=stride; | |
323 | } | |
324 | } | |
325 | } | |
326 | ||
f6fa7814 | 327 | void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, const BlockNode *block, int plane_index, int w, int h){ |
2ba45a60 DM |
328 | if(block->type & BLOCK_INTRA){ |
329 | int x, y; | |
330 | const unsigned color = block->color[plane_index]; | |
331 | const unsigned color4 = color*0x01010101; | |
332 | if(b_w==32){ | |
333 | for(y=0; y < b_h; y++){ | |
334 | *(uint32_t*)&dst[0 + y*stride]= color4; | |
335 | *(uint32_t*)&dst[4 + y*stride]= color4; | |
336 | *(uint32_t*)&dst[8 + y*stride]= color4; | |
337 | *(uint32_t*)&dst[12+ y*stride]= color4; | |
338 | *(uint32_t*)&dst[16+ y*stride]= color4; | |
339 | *(uint32_t*)&dst[20+ y*stride]= color4; | |
340 | *(uint32_t*)&dst[24+ y*stride]= color4; | |
341 | *(uint32_t*)&dst[28+ y*stride]= color4; | |
342 | } | |
343 | }else if(b_w==16){ | |
344 | for(y=0; y < b_h; y++){ | |
345 | *(uint32_t*)&dst[0 + y*stride]= color4; | |
346 | *(uint32_t*)&dst[4 + y*stride]= color4; | |
347 | *(uint32_t*)&dst[8 + y*stride]= color4; | |
348 | *(uint32_t*)&dst[12+ y*stride]= color4; | |
349 | } | |
350 | }else if(b_w==8){ | |
351 | for(y=0; y < b_h; y++){ | |
352 | *(uint32_t*)&dst[0 + y*stride]= color4; | |
353 | *(uint32_t*)&dst[4 + y*stride]= color4; | |
354 | } | |
355 | }else if(b_w==4){ | |
356 | for(y=0; y < b_h; y++){ | |
357 | *(uint32_t*)&dst[0 + y*stride]= color4; | |
358 | } | |
359 | }else{ | |
360 | for(y=0; y < b_h; y++){ | |
361 | for(x=0; x < b_w; x++){ | |
362 | dst[x + y*stride]= color; | |
363 | } | |
364 | } | |
365 | } | |
366 | }else{ | |
367 | uint8_t *src= s->last_picture[block->ref]->data[plane_index]; | |
368 | const int scale= plane_index ? (2*s->mv_scale)>>s->chroma_h_shift : 2*s->mv_scale; | |
369 | int mx= block->mx*scale; | |
370 | int my= block->my*scale; | |
371 | const int dx= mx&15; | |
372 | const int dy= my&15; | |
373 | const int tab_index= 3 - (b_w>>2) + (b_w>>4); | |
374 | sx += (mx>>4) - (HTAPS_MAX/2-1); | |
375 | sy += (my>>4) - (HTAPS_MAX/2-1); | |
376 | src += sx + sy*stride; | |
377 | if( (unsigned)sx >= FFMAX(w - b_w - (HTAPS_MAX-2), 0) | |
378 | || (unsigned)sy >= FFMAX(h - b_h - (HTAPS_MAX-2), 0)){ | |
379 | s->vdsp.emulated_edge_mc(tmp + MB_SIZE, src, | |
380 | stride, stride, | |
381 | b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, | |
382 | sx, sy, w, h); | |
383 | src= tmp + MB_SIZE; | |
384 | } | |
385 | ||
386 | av_assert2(s->chroma_h_shift == s->chroma_v_shift); // only one mv_scale | |
387 | ||
388 | av_assert2((tab_index>=0 && tab_index<4) || b_w==32); | |
389 | if( (dx&3) || (dy&3) | |
390 | || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) | |
391 | || (b_w&(b_w-1)) | |
392 | || b_w == 1 | |
393 | || b_h == 1 | |
394 | || !s->plane[plane_index].fast_mc ) | |
395 | mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy); | |
396 | else if(b_w==32){ | |
397 | int y; | |
398 | for(y=0; y<b_h; y+=16){ | |
399 | s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride); | |
400 | s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride); | |
401 | } | |
402 | }else if(b_w==b_h) | |
403 | s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride); | |
404 | else if(b_w==2*b_h){ | |
405 | s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride); | |
406 | s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride); | |
407 | }else{ | |
408 | av_assert2(2*b_w==b_h); | |
409 | s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride); | |
410 | s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride); | |
411 | } | |
412 | } | |
413 | } | |
414 | ||
415 | #define mca(dx,dy,b_w)\ | |
416 | static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h){\ | |
417 | av_assert2(h==b_w);\ | |
418 | mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\ | |
419 | } | |
420 | ||
421 | mca( 0, 0,16) | |
422 | mca( 8, 0,16) | |
423 | mca( 0, 8,16) | |
424 | mca( 8, 8,16) | |
425 | mca( 0, 0,8) | |
426 | mca( 8, 0,8) | |
427 | mca( 0, 8,8) | |
428 | mca( 8, 8,8) | |
429 | ||
430 | av_cold int ff_snow_common_init(AVCodecContext *avctx){ | |
431 | SnowContext *s = avctx->priv_data; | |
432 | int width, height; | |
433 | int i, j; | |
434 | ||
435 | s->avctx= avctx; | |
436 | s->max_ref_frames=1; //just make sure it's not an invalid value in case of no initial keyframe | |
437 | ||
438 | ff_me_cmp_init(&s->mecc, avctx); | |
439 | ff_hpeldsp_init(&s->hdsp, avctx->flags); | |
440 | ff_videodsp_init(&s->vdsp, 8); | |
441 | ff_dwt_init(&s->dwt); | |
442 | ff_h264qpel_init(&s->h264qpel, 8); | |
443 | ||
444 | #define mcf(dx,dy)\ | |
445 | s->qdsp.put_qpel_pixels_tab [0][dy+dx/4]=\ | |
446 | s->qdsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ | |
447 | s->h264qpel.put_h264_qpel_pixels_tab[0][dy+dx/4];\ | |
448 | s->qdsp.put_qpel_pixels_tab [1][dy+dx/4]=\ | |
449 | s->qdsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\ | |
450 | s->h264qpel.put_h264_qpel_pixels_tab[1][dy+dx/4]; | |
451 | ||
452 | mcf( 0, 0) | |
453 | mcf( 4, 0) | |
454 | mcf( 8, 0) | |
455 | mcf(12, 0) | |
456 | mcf( 0, 4) | |
457 | mcf( 4, 4) | |
458 | mcf( 8, 4) | |
459 | mcf(12, 4) | |
460 | mcf( 0, 8) | |
461 | mcf( 4, 8) | |
462 | mcf( 8, 8) | |
463 | mcf(12, 8) | |
464 | mcf( 0,12) | |
465 | mcf( 4,12) | |
466 | mcf( 8,12) | |
467 | mcf(12,12) | |
468 | ||
469 | #define mcfh(dx,dy)\ | |
470 | s->hdsp.put_pixels_tab [0][dy/4+dx/8]=\ | |
471 | s->hdsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ | |
472 | mc_block_hpel ## dx ## dy ## 16;\ | |
473 | s->hdsp.put_pixels_tab [1][dy/4+dx/8]=\ | |
474 | s->hdsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\ | |
475 | mc_block_hpel ## dx ## dy ## 8; | |
476 | ||
477 | mcfh(0, 0) | |
478 | mcfh(8, 0) | |
479 | mcfh(0, 8) | |
480 | mcfh(8, 8) | |
481 | ||
482 | init_qexp(); | |
483 | ||
484 | // dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); | |
485 | ||
486 | width= s->avctx->width; | |
487 | height= s->avctx->height; | |
488 | ||
489 | FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->spatial_idwt_buffer, width, height * sizeof(IDWTELEM), fail); | |
490 | FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->spatial_dwt_buffer, width, height * sizeof(DWTELEM), fail); //FIXME this does not belong here | |
491 | FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->temp_dwt_buffer, width, sizeof(DWTELEM), fail); | |
492 | FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->temp_idwt_buffer, width, sizeof(IDWTELEM), fail); | |
493 | FF_ALLOC_ARRAY_OR_GOTO(avctx, s->run_buffer, ((width + 1) >> 1), ((height + 1) >> 1) * sizeof(*s->run_buffer), fail); | |
494 | ||
495 | for(i=0; i<MAX_REF_FRAMES; i++) { | |
496 | for(j=0; j<MAX_REF_FRAMES; j++) | |
497 | ff_scale_mv_ref[i][j] = 256*(i+1)/(j+1); | |
498 | s->last_picture[i] = av_frame_alloc(); | |
499 | if (!s->last_picture[i]) | |
500 | goto fail; | |
501 | } | |
502 | ||
503 | s->mconly_picture = av_frame_alloc(); | |
504 | s->current_picture = av_frame_alloc(); | |
505 | if (!s->mconly_picture || !s->current_picture) | |
506 | goto fail; | |
507 | ||
508 | return 0; | |
509 | fail: | |
510 | return AVERROR(ENOMEM); | |
511 | } | |
512 | ||
513 | int ff_snow_common_init_after_header(AVCodecContext *avctx) { | |
514 | SnowContext *s = avctx->priv_data; | |
515 | int plane_index, level, orientation; | |
516 | int ret, emu_buf_size; | |
517 | ||
518 | if(!s->scratchbuf) { | |
519 | if ((ret = ff_get_buffer(s->avctx, s->mconly_picture, | |
520 | AV_GET_BUFFER_FLAG_REF)) < 0) | |
521 | return ret; | |
522 | FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->scratchbuf, FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256), 7*MB_SIZE, fail); | |
523 | emu_buf_size = FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1); | |
524 | FF_ALLOC_OR_GOTO(avctx, s->emu_edge_buffer, emu_buf_size, fail); | |
525 | } | |
526 | ||
527 | if(s->mconly_picture->format != avctx->pix_fmt) { | |
528 | av_log(avctx, AV_LOG_ERROR, "pixel format changed\n"); | |
529 | return AVERROR_INVALIDDATA; | |
530 | } | |
531 | ||
532 | for(plane_index=0; plane_index < s->nb_planes; plane_index++){ | |
533 | int w= s->avctx->width; | |
534 | int h= s->avctx->height; | |
535 | ||
536 | if(plane_index){ | |
537 | w>>= s->chroma_h_shift; | |
538 | h>>= s->chroma_v_shift; | |
539 | } | |
540 | s->plane[plane_index].width = w; | |
541 | s->plane[plane_index].height= h; | |
542 | ||
543 | for(level=s->spatial_decomposition_count-1; level>=0; level--){ | |
544 | for(orientation=level ? 1 : 0; orientation<4; orientation++){ | |
545 | SubBand *b= &s->plane[plane_index].band[level][orientation]; | |
546 | ||
547 | b->buf= s->spatial_dwt_buffer; | |
548 | b->level= level; | |
549 | b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); | |
550 | b->width = (w + !(orientation&1))>>1; | |
551 | b->height= (h + !(orientation>1))>>1; | |
552 | ||
553 | b->stride_line = 1 << (s->spatial_decomposition_count - level); | |
554 | b->buf_x_offset = 0; | |
555 | b->buf_y_offset = 0; | |
556 | ||
557 | if(orientation&1){ | |
558 | b->buf += (w+1)>>1; | |
559 | b->buf_x_offset = (w+1)>>1; | |
560 | } | |
561 | if(orientation>1){ | |
562 | b->buf += b->stride>>1; | |
563 | b->buf_y_offset = b->stride_line >> 1; | |
564 | } | |
565 | b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer); | |
566 | ||
567 | if(level) | |
568 | b->parent= &s->plane[plane_index].band[level-1][orientation]; | |
569 | //FIXME avoid this realloc | |
570 | av_freep(&b->x_coeff); | |
571 | b->x_coeff=av_mallocz_array(((b->width+1) * b->height+1), sizeof(x_and_coeff)); | |
572 | if (!b->x_coeff) | |
573 | goto fail; | |
574 | } | |
575 | w= (w+1)>>1; | |
576 | h= (h+1)>>1; | |
577 | } | |
578 | } | |
579 | ||
580 | return 0; | |
581 | fail: | |
582 | return AVERROR(ENOMEM); | |
583 | } | |
584 | ||
585 | #define USE_HALFPEL_PLANE 0 | |
586 | ||
587 | static int halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){ | |
588 | int p,x,y; | |
589 | ||
590 | for(p=0; p < s->nb_planes; p++){ | |
591 | int is_chroma= !!p; | |
592 | int w= is_chroma ? s->avctx->width >>s->chroma_h_shift : s->avctx->width; | |
593 | int h= is_chroma ? s->avctx->height>>s->chroma_v_shift : s->avctx->height; | |
594 | int ls= frame->linesize[p]; | |
595 | uint8_t *src= frame->data[p]; | |
596 | ||
597 | halfpel[1][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); | |
598 | halfpel[2][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); | |
599 | halfpel[3][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); | |
600 | if (!halfpel[1][p] || !halfpel[2][p] || !halfpel[3][p]) | |
601 | return AVERROR(ENOMEM); | |
602 | ||
603 | halfpel[0][p]= src; | |
604 | for(y=0; y<h; y++){ | |
605 | for(x=0; x<w; x++){ | |
606 | int i= y*ls + x; | |
607 | ||
608 | halfpel[1][p][i]= (20*(src[i] + src[i+1]) - 5*(src[i-1] + src[i+2]) + (src[i-2] + src[i+3]) + 16 )>>5; | |
609 | } | |
610 | } | |
611 | for(y=0; y<h; y++){ | |
612 | for(x=0; x<w; x++){ | |
613 | int i= y*ls + x; | |
614 | ||
615 | halfpel[2][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; | |
616 | } | |
617 | } | |
618 | src= halfpel[1][p]; | |
619 | for(y=0; y<h; y++){ | |
620 | for(x=0; x<w; x++){ | |
621 | int i= y*ls + x; | |
622 | ||
623 | halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; | |
624 | } | |
625 | } | |
626 | ||
627 | //FIXME border! | |
628 | } | |
629 | return 0; | |
630 | } | |
631 | ||
632 | void ff_snow_release_buffer(AVCodecContext *avctx) | |
633 | { | |
634 | SnowContext *s = avctx->priv_data; | |
635 | int i; | |
636 | ||
637 | if(s->last_picture[s->max_ref_frames-1]->data[0]){ | |
638 | av_frame_unref(s->last_picture[s->max_ref_frames-1]); | |
639 | for(i=0; i<9; i++) | |
f6fa7814 | 640 | if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) { |
2ba45a60 | 641 | av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture->linesize[i%3])); |
f6fa7814 DM |
642 | s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] = NULL; |
643 | } | |
2ba45a60 DM |
644 | } |
645 | } | |
646 | ||
647 | int ff_snow_frame_start(SnowContext *s){ | |
648 | AVFrame *tmp; | |
649 | int i, ret; | |
650 | ||
651 | ff_snow_release_buffer(s->avctx); | |
652 | ||
653 | tmp= s->last_picture[s->max_ref_frames-1]; | |
654 | for(i=s->max_ref_frames-1; i>0; i--) | |
655 | s->last_picture[i] = s->last_picture[i-1]; | |
656 | memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4); | |
657 | if(USE_HALFPEL_PLANE && s->current_picture->data[0]) { | |
658 | if((ret = halfpel_interpol(s, s->halfpel_plane[0], s->current_picture)) < 0) | |
659 | return ret; | |
660 | } | |
661 | s->last_picture[0] = s->current_picture; | |
662 | s->current_picture = tmp; | |
663 | ||
664 | if(s->keyframe){ | |
665 | s->ref_frames= 0; | |
666 | }else{ | |
667 | int i; | |
668 | for(i=0; i<s->max_ref_frames && s->last_picture[i]->data[0]; i++) | |
669 | if(i && s->last_picture[i-1]->key_frame) | |
670 | break; | |
671 | s->ref_frames= i; | |
672 | if(s->ref_frames==0){ | |
673 | av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n"); | |
674 | return -1; | |
675 | } | |
676 | } | |
677 | if ((ret = ff_snow_get_buffer(s, s->current_picture)) < 0) | |
678 | return ret; | |
679 | ||
680 | s->current_picture->key_frame= s->keyframe; | |
681 | ||
682 | return 0; | |
683 | } | |
684 | ||
685 | av_cold void ff_snow_common_end(SnowContext *s) | |
686 | { | |
687 | int plane_index, level, orientation, i; | |
688 | ||
689 | av_freep(&s->spatial_dwt_buffer); | |
690 | av_freep(&s->temp_dwt_buffer); | |
691 | av_freep(&s->spatial_idwt_buffer); | |
692 | av_freep(&s->temp_idwt_buffer); | |
693 | av_freep(&s->run_buffer); | |
694 | ||
695 | s->m.me.temp= NULL; | |
696 | av_freep(&s->m.me.scratchpad); | |
697 | av_freep(&s->m.me.map); | |
698 | av_freep(&s->m.me.score_map); | |
699 | av_freep(&s->m.obmc_scratchpad); | |
700 | ||
701 | av_freep(&s->block); | |
702 | av_freep(&s->scratchbuf); | |
703 | av_freep(&s->emu_edge_buffer); | |
704 | ||
705 | for(i=0; i<MAX_REF_FRAMES; i++){ | |
706 | av_freep(&s->ref_mvs[i]); | |
707 | av_freep(&s->ref_scores[i]); | |
708 | if(s->last_picture[i] && s->last_picture[i]->data[0]) { | |
709 | av_assert0(s->last_picture[i]->data[0] != s->current_picture->data[0]); | |
710 | } | |
711 | av_frame_free(&s->last_picture[i]); | |
712 | } | |
713 | ||
714 | for(plane_index=0; plane_index < s->nb_planes; plane_index++){ | |
715 | for(level=s->spatial_decomposition_count-1; level>=0; level--){ | |
716 | for(orientation=level ? 1 : 0; orientation<4; orientation++){ | |
717 | SubBand *b= &s->plane[plane_index].band[level][orientation]; | |
718 | ||
719 | av_freep(&b->x_coeff); | |
720 | } | |
721 | } | |
722 | } | |
723 | av_frame_free(&s->mconly_picture); | |
724 | av_frame_free(&s->current_picture); | |
725 | } |