FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/snowenc.c
Date: 2024-07-26 21:54:09
Exec Total Coverage
Lines: 1091 1321 82.6%
Functions: 30 33 90.9%
Branches: 636 838 75.9%
Line Branch Exec Source
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/emms.h"
22 #include "libavutil/intmath.h"
23 #include "libavutil/libm.h"
24 #include "libavutil/log.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "avcodec.h"
29 #include "codec_internal.h"
30 #include "encode.h"
31 #include "internal.h" //For AVCodecInternal.recon_frame
32 #include "me_cmp.h"
33 #include "packet_internal.h"
34 #include "qpeldsp.h"
35 #include "snow_dwt.h"
36 #include "snow.h"
37
38 #include "rangecoder.h"
39 #include "mathops.h"
40
41 #include "mpegvideo.h"
42 #include "h263enc.h"
43
44 #define FF_ME_ITER 3
45
46 typedef struct SnowEncContext {
47 SnowContext com;
48 QpelDSPContext qdsp;
49 MpegvideoEncDSPContext mpvencdsp;
50
51 int lambda;
52 int lambda2;
53 int pass1_rc;
54
55 int pred;
56 int memc_only;
57 int no_bitstream;
58 int intra_penalty;
59 int motion_est;
60 int iterative_dia_size;
61 int scenechange_threshold;
62
63 MECmpContext mecc;
64 MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)
65 MPVPicture cur_pic, last_pic;
66 #define ME_CACHE_SIZE 1024
67 unsigned me_cache[ME_CACHE_SIZE];
68 unsigned me_cache_generation;
69
70 uint64_t encoding_error[SNOW_MAX_PLANES];
71 } SnowEncContext;
72
73 557820 static void init_ref(MotionEstContext *c, const uint8_t *const src[3],
74 uint8_t *const ref[3], uint8_t *const ref2[3],
75 int x, int y, int ref_index)
76 {
77 557820 SnowContext *s = c->avctx->priv_data;
78 557820 const int offset[3] = {
79 557820 y*c-> stride + x,
80 557820 ((y*c->uvstride + x) >> s->chroma_h_shift),
81 557820 ((y*c->uvstride + x) >> s->chroma_h_shift),
82 };
83
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 2231280 for (int i = 0; i < 3; i++) {
84 1673460 c->src[0][i] = src [i];
85 1673460 c->ref[0][i] = ref [i] + offset[i];
86 }
87 av_assert2(!ref_index);
88 557820 }
89
90 2810763 static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed)
91 {
92
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 2810763 if (v) {
93 2212924 const int a = FFABS(v);
94 2212924 const int e = av_log2(a);
95 2212924 const int el = FFMIN(e, 10);
96 int i;
97
98 2212924 put_rac(c, state + 0, 0);
99
100
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101 5323053 put_rac(c, state + 1 + i, 1); //1..10
102
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103 ✗ put_rac(c, state + 1 + 9, 1); //1..10
104
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 2212924 put_rac(c, state + 1 + FFMIN(i, 9), 0);
105
106
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107 ✗ put_rac(c, state + 22 + 9, (a >> i) & 1); //22..31
108
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109 5323053 put_rac(c, state + 22 + i, (a >> i) & 1); //22..31
110
111
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 2212924 if (is_signed)
112 2212501 put_rac(c, state + 11 + el, v < 0); //11..21
113 } else {
114 597839 put_rac(c, state + 0, 1);
115 }
116 2810763 }
117
118 16307034 static inline void put_symbol2(RangeCoder *c, uint8_t *state, int v, int log2)
119 {
120
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 16307034 int r = log2 >= 0 ? 1<<log2 : 1;
121
122 av_assert2(v >= 0);
123 av_assert2(log2 >= -4);
124
125
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 28200207 while (v >= r) {
126 11893173 put_rac(c, state + 4 + log2, 1);
127 11893173 v -= r;
128 11893173 log2++;
129
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 11893173 if (log2 > 0) r += r;
130 }
131 16307034 put_rac(c, state + 4 + log2, 0);
132
133
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 32947191 for (int i = log2 - 1; i >= 0; i--)
134 16640157 put_rac(c, state + 31 - i, (v >> i) & 1);
135 16307034 }
136
137 521 static int get_encode_buffer(SnowContext *s, AVFrame *frame)
138 {
139 int ret;
140
141 521 frame->width = s->avctx->width + 2 * EDGE_WIDTH;
142 521 frame->height = s->avctx->height + 2 * EDGE_WIDTH;
143
144 521 ret = ff_encode_alloc_frame(s->avctx, frame);
145
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 521 if (ret < 0)
146 ✗ return ret;
147
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 2084 for (int i = 0; frame->data[i]; i++) {
148
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 1563 int offset = (EDGE_WIDTH >> (i ? s->chroma_v_shift : 0)) *
149 1563 frame->linesize[i] +
150
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 1563 (EDGE_WIDTH >> (i ? s->chroma_h_shift : 0));
151 1563 frame->data[i] += offset;
152 }
153 521 frame->width = s->avctx->width;
154 521 frame->height = s->avctx->height;
155
156 521 return 0;
157 }
158
159 11 static av_cold int encode_init(AVCodecContext *avctx)
160 {
161 11 SnowEncContext *const enc = avctx->priv_data;
162 11 SnowContext *const s = &enc->com;
163 11 MpegEncContext *const mpv = &enc->m;
164 int plane_index, ret;
165 int i;
166
167
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 11 if (enc->pred == DWT_97
168
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 8 && (avctx->flags & AV_CODEC_FLAG_QSCALE)
169
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 8 && avctx->global_quality == 0){
170 ✗ av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n");
171 ✗ return AVERROR(EINVAL);
172 }
173
174 11 s->spatial_decomposition_type = enc->pred; //FIXME add decorrelator type r transform_type
175
176
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 11 s->mv_scale = (avctx->flags & AV_CODEC_FLAG_QPEL) ? 2 : 4;
177 11 s->block_max_depth= (avctx->flags & AV_CODEC_FLAG_4MV ) ? 1 : 0;
178
179
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 44 for(plane_index=0; plane_index<3; plane_index++){
180 33 s->plane[plane_index].diag_mc= 1;
181 33 s->plane[plane_index].htaps= 6;
182 33 s->plane[plane_index].hcoeff[0]= 40;
183 33 s->plane[plane_index].hcoeff[1]= -10;
184 33 s->plane[plane_index].hcoeff[2]= 2;
185 33 s->plane[plane_index].fast_mc= 1;
186 }
187
188 // Must be before ff_snow_common_init()
189 11 ff_hpeldsp_init(&s->hdsp, avctx->flags);
190
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 11 if ((ret = ff_snow_common_init(avctx)) < 0) {
191 ✗ return ret;
192 }
193
194 #define mcf(dx,dy)\
195 enc->qdsp.put_qpel_pixels_tab [0][dy+dx/4]=\
196 enc->qdsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
197 s->h264qpel.put_h264_qpel_pixels_tab[0][dy+dx/4];\
198 enc->qdsp.put_qpel_pixels_tab [1][dy+dx/4]=\
199 enc->qdsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\
200 s->h264qpel.put_h264_qpel_pixels_tab[1][dy+dx/4];
201
202 11 mcf( 0, 0)
203 11 mcf( 4, 0)
204 11 mcf( 8, 0)
205 11 mcf(12, 0)
206 11 mcf( 0, 4)
207 11 mcf( 4, 4)
208 11 mcf( 8, 4)
209 11 mcf(12, 4)
210 11 mcf( 0, 8)
211 11 mcf( 4, 8)
212 11 mcf( 8, 8)
213 11 mcf(12, 8)
214 11 mcf( 0,12)
215 11 mcf( 4,12)
216 11 mcf( 8,12)
217 11 mcf(12,12)
218
219 11 ff_me_cmp_init(&enc->mecc, avctx);
220 11 ret = ff_me_init(&enc->m.me, avctx, &enc->mecc, 0);
221
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 11 if (ret < 0)
222 ✗ return ret;
223 11 ff_mpegvideoencdsp_init(&enc->mpvencdsp, avctx);
224
225 11 ff_snow_alloc_blocks(s);
226
227 11 s->version=0;
228
229 11 mpv->avctx = avctx;
230 11 mpv->bit_rate= avctx->bit_rate;
231 11 mpv->lmin = avctx->mb_lmin;
232 11 mpv->lmax = avctx->mb_lmax;
233 11 mpv->mb_num = (avctx->width * avctx->height + 255) / 256; // For ratecontrol
234
235 11 mpv->me.temp =
236 11 mpv->me.scratchpad = av_calloc(avctx->width + 64, 2*16*2*sizeof(uint8_t));
237 11 mpv->sc.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t));
238 11 mpv->me.map = av_mallocz(2 * ME_MAP_SIZE * sizeof(*mpv->me.map));
239
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 11 if (!mpv->me.scratchpad || !mpv->me.map || !mpv->sc.obmc_scratchpad)
240 ✗ return AVERROR(ENOMEM);
241 11 mpv->me.score_map = mpv->me.map + ME_MAP_SIZE;
242
243 11 ff_h263_encode_init(mpv); //mv_penalty
244
245 11 s->max_ref_frames = av_clip(avctx->refs, 1, MAX_REF_FRAMES);
246
247
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 11 if(avctx->flags&AV_CODEC_FLAG_PASS1){
248 ✗ if(!avctx->stats_out)
249 ✗ avctx->stats_out = av_mallocz(256);
250
251 ✗ if (!avctx->stats_out)
252 ✗ return AVERROR(ENOMEM);
253 }
254
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 11 if((avctx->flags&AV_CODEC_FLAG_PASS2) || !(avctx->flags&AV_CODEC_FLAG_QSCALE)){
255 ✗ ret = ff_rate_control_init(mpv);
256 ✗ if(ret < 0)
257 ✗ return ret;
258 }
259 11 enc->pass1_rc = !(avctx->flags & (AV_CODEC_FLAG_QSCALE|AV_CODEC_FLAG_PASS2));
260
261
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 11 switch(avctx->pix_fmt){
262 11 case AV_PIX_FMT_YUV444P:
263 // case AV_PIX_FMT_YUV422P:
264 case AV_PIX_FMT_YUV420P:
265 // case AV_PIX_FMT_YUV411P:
266 case AV_PIX_FMT_YUV410P:
267 11 s->nb_planes = 3;
268 11 s->colorspace_type= 0;
269 11 break;
270 ✗ case AV_PIX_FMT_GRAY8:
271 ✗ s->nb_planes = 1;
272 ✗ s->colorspace_type = 1;
273 ✗ break;
274 /* case AV_PIX_FMT_RGB32:
275 s->colorspace= 1;
276 break;*/
277 }
278
279 11 ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift,
280 &s->chroma_v_shift);
281
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 11 if (ret)
282 ✗ return ret;
283
284 11 s->input_picture = av_frame_alloc();
285
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 11 if (!s->input_picture)
286 ✗ return AVERROR(ENOMEM);
287
288
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 11 if ((ret = get_encode_buffer(s, s->input_picture)) < 0)
289 ✗ return ret;
290
291
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 11 if (enc->motion_est == FF_ME_ITER) {
292 6 int size= s->b_width * s->b_height << 2*s->block_max_depth;
293
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 12 for(i=0; i<s->max_ref_frames; i++){
294 6 s->ref_mvs[i] = av_calloc(size, sizeof(*s->ref_mvs[i]));
295 6 s->ref_scores[i] = av_calloc(size, sizeof(*s->ref_scores[i]));
296
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 6 if (!s->ref_mvs[i] || !s->ref_scores[i])
297 ✗ return AVERROR(ENOMEM);
298 }
299 }
300
301 11 return 0;
302 }
303
304 //near copy & paste from dsputil, FIXME
305 1673460 static int pix_sum(const uint8_t * pix, int line_size, int w, int h)
306 {
307 int s, i, j;
308
309 1673460 s = 0;
310
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311
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 109918080 for (j = 0; j < w; j++) {
312 98496000 s += pix[0];
313 98496000 pix ++;
314 }
315 11422080 pix += line_size - w;
316 }
317 1673460 return s;
318 }
319
320 //near copy & paste from dsputil, FIXME
321 557820 static int pix_norm1(const uint8_t * pix, int line_size, int w)
322 {
323 int s, i, j;
324 557820 const uint32_t *sq = ff_square_tab + 256;
325
326 557820 s = 0;
327
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328
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 71375040 for (j = 0; j < w; j ++) {
329 65664000 s += sq[pix[0]];
330 65664000 pix ++;
331 }
332 5711040 pix += line_size - w;
333 }
334 557820 return s;
335 }
336
337 1979900 static inline int get_penalty_factor(int lambda, int lambda2, int type){
338
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 1979900 switch(type&0xFF){
339 1374300 default:
340 case FF_CMP_SAD:
341 1374300 return lambda>>FF_LAMBDA_SHIFT;
342 ✗ case FF_CMP_DCT:
343 ✗ return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
344 ✗ case FF_CMP_W53:
345 ✗ return (4*lambda)>>(FF_LAMBDA_SHIFT);
346 323720 case FF_CMP_W97:
347 323720 return (2*lambda)>>(FF_LAMBDA_SHIFT);
348 ✗ case FF_CMP_SATD:
349 case FF_CMP_DCT264:
350 ✗ return (2*lambda)>>FF_LAMBDA_SHIFT;
351 281880 case FF_CMP_RD:
352 case FF_CMP_PSNR:
353 case FF_CMP_SSE:
354 case FF_CMP_NSSE:
355 281880 return lambda2>>FF_LAMBDA_SHIFT;
356 ✗ case FF_CMP_BIT:
357 ✗ return 1;
358 }
359 }
360
361 //FIXME copy&paste
362 #define P_LEFT P[1]
363 #define P_TOP P[2]
364 #define P_TOPRIGHT P[3]
365 #define P_MEDIAN P[4]
366 #define P_MV1 P[9]
367 #define FLAG_QPEL 1 //must be 1
368
369 567000 static int encode_q_branch(SnowEncContext *enc, int level, int x, int y)
370 {
371 567000 SnowContext *const s = &enc->com;
372 567000 MotionEstContext *const c = &enc->m.me;
373 uint8_t p_buffer[1024];
374 uint8_t i_buffer[1024];
375 uint8_t p_state[sizeof(s->block_state)];
376 uint8_t i_state[sizeof(s->block_state)];
377 RangeCoder pc, ic;
378 567000 uint8_t *pbbak= s->c.bytestream;
379 567000 uint8_t *pbbak_start= s->c.bytestream_start;
380 int score, score2, iscore, i_len, p_len, block_s, sum, base_bits;
381 567000 const int w= s->b_width << s->block_max_depth;
382 567000 const int h= s->b_height << s->block_max_depth;
383 567000 const int rem_depth= s->block_max_depth - level;
384 567000 const int index= (x + y*w) << rem_depth;
385 567000 const int block_w= 1<<(LOG2_MB_SIZE - level);
386 567000 int trx= (x+1)<<rem_depth;
387 567000 int try= (y+1)<<rem_depth;
388
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 567000 const BlockNode *left = x ? &s->block[index-1] : &null_block;
389
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 567000 const BlockNode *top = y ? &s->block[index-w] : &null_block;
390
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 567000 const BlockNode *right = trx<w ? &s->block[index+1] : &null_block;
391
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 567000 const BlockNode *bottom= try<h ? &s->block[index+w] : &null_block;
392
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 567000 const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
393
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 567000 const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
394 567000 int pl = left->color[0];
395 567000 int pcb= left->color[1];
396 567000 int pcr= left->color[2];
397 int pmx, pmy;
398 567000 int mx=0, my=0;
399 int l,cr,cb;
400 567000 const int stride= s->current_picture->linesize[0];
401 567000 const int uvstride= s->current_picture->linesize[1];
402 567000 const uint8_t *const current_data[3] = { s->input_picture->data[0] + (x + y* stride)*block_w,
403 567000 s->input_picture->data[1] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift),
404 567000 s->input_picture->data[2] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift)};
405 int P[10][2];
406 int16_t last_mv[3][2];
407 567000 int qpel= !!(s->avctx->flags & AV_CODEC_FLAG_QPEL); //unused
408 567000 const int shift= 1+qpel;
409 567000 int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
410 567000 int mx_context= av_log2(2*FFABS(left->mx - top->mx));
411 567000 int my_context= av_log2(2*FFABS(left->my - top->my));
412 567000 int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
413 int ref, best_ref, ref_score, ref_mx, ref_my;
414 567000 int range = MAX_MV >> (1 + qpel);
415
416 av_assert0(sizeof(s->block_state) >= 256);
417
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 567000 if(s->keyframe){
418 9180 set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
419 9180 return 0;
420 }
421
422 // clip predictors / edge ?
423
424 557820 P_LEFT[0]= left->mx;
425 557820 P_LEFT[1]= left->my;
426 557820 P_TOP [0]= top->mx;
427 557820 P_TOP [1]= top->my;
428 557820 P_TOPRIGHT[0]= tr->mx;
429 557820 P_TOPRIGHT[1]= tr->my;
430
431 557820 last_mv[0][0]= s->block[index].mx;
432 557820 last_mv[0][1]= s->block[index].my;
433 557820 last_mv[1][0]= right->mx;
434 557820 last_mv[1][1]= right->my;
435 557820 last_mv[2][0]= bottom->mx;
436 557820 last_mv[2][1]= bottom->my;
437
438 557820 enc->m.mb_stride = 2;
439 557820 enc->m.mb_x =
440 557820 enc->m.mb_y = 0;
441 557820 c->skip= 0;
442
443 av_assert1(c-> stride == stride);
444 av_assert1(c->uvstride == uvstride);
445
446 557820 c->penalty_factor = get_penalty_factor(enc->lambda, enc->lambda2, c->avctx->me_cmp);
447 557820 c->sub_penalty_factor= get_penalty_factor(enc->lambda, enc->lambda2, c->avctx->me_sub_cmp);
448 557820 c->mb_penalty_factor = get_penalty_factor(enc->lambda, enc->lambda2, c->avctx->mb_cmp);
449 557820 c->current_mv_penalty = c->mv_penalty[enc->m.f_code=1] + MAX_DMV;
450
451 557820 c->xmin = - x*block_w - 16+3;
452 557820 c->ymin = - y*block_w - 16+3;
453 557820 c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
454 557820 c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;
455
456 557820 c->xmin = FFMAX(c->xmin,-range);
457 557820 c->xmax = FFMIN(c->xmax, range);
458 557820 c->ymin = FFMAX(c->ymin,-range);
459 557820 c->ymax = FFMIN(c->ymax, range);
460
461
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 557820 if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
462
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 557820 if(P_LEFT[1] > (c->ymax<<shift)) P_LEFT[1] = (c->ymax<<shift);
463
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 557820 if(P_TOP[0] > (c->xmax<<shift)) P_TOP[0] = (c->xmax<<shift);
464
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 557820 if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
465
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 557820 if(P_TOPRIGHT[0] < (c->xmin * (1<<shift))) P_TOPRIGHT[0]= (c->xmin * (1<<shift));
466
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 557820 if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift); //due to pmx no clip
467
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 557820 if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
468
469 557820 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
470 557820 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
471
472
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 557820 if (!y) {
473 16290 c->pred_x= P_LEFT[0];
474 16290 c->pred_y= P_LEFT[1];
475 } else {
476 541530 c->pred_x = P_MEDIAN[0];
477 541530 c->pred_y = P_MEDIAN[1];
478 }
479
480 557820 score= INT_MAX;
481 557820 best_ref= 0;
482
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 1115640 for(ref=0; ref<s->ref_frames; ref++){
483 557820 init_ref(c, current_data, s->last_picture[ref]->data, NULL, block_w*x, block_w*y, 0);
484
485 557820 ref_score= ff_epzs_motion_search(&enc->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv,
486 (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w);
487
488 av_assert2(ref_mx >= c->xmin);
489 av_assert2(ref_mx <= c->xmax);
490 av_assert2(ref_my >= c->ymin);
491 av_assert2(ref_my <= c->ymax);
492
493 557820 ref_score= c->sub_motion_search(&enc->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w);
494 557820 ref_score= ff_get_mb_score(&enc->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0);
495 557820 ref_score+= 2*av_log2(2*ref)*c->penalty_factor;
496
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 557820 if(s->ref_mvs[ref]){
497 8640 s->ref_mvs[ref][index][0]= ref_mx;
498 8640 s->ref_mvs[ref][index][1]= ref_my;
499 8640 s->ref_scores[ref][index]= ref_score;
500 }
501
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 557820 if(score > ref_score){
502 557820 score= ref_score;
503 557820 best_ref= ref;
504 557820 mx= ref_mx;
505 557820 my= ref_my;
506 }
507 }
508 //FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2
509
510 // subpel search
511 557820 base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start);
512 557820 pc= s->c;
513 557820 pc.bytestream_start=
514 557820 pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo
515 557820 memcpy(p_state, s->block_state, sizeof(s->block_state));
516
517
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 557820 if(level!=s->block_max_depth)
518 100440 put_rac(&pc, &p_state[4 + s_context], 1);
519 557820 put_rac(&pc, &p_state[1 + left->type + top->type], 0);
520
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 557820 if(s->ref_frames > 1)
521 ✗ put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0);
522 557820 pred_mv(s, &pmx, &pmy, best_ref, left, top, tr);
523
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 557820 put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1);
524
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 557820 put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1);
525 557820 p_len= pc.bytestream - pc.bytestream_start;
526 557820 score += (enc->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT;
527
528 557820 block_s= block_w*block_w;
529 557820 sum = pix_sum(current_data[0], stride, block_w, block_w);
530 557820 l= (sum + block_s/2)/block_s;
531 557820 iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s;
532
533
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 557820 if (s->nb_planes > 2) {
534 557820 block_s= block_w*block_w>>(s->chroma_h_shift + s->chroma_v_shift);
535 557820 sum = pix_sum(current_data[1], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);
536 557820 cb= (sum + block_s/2)/block_s;
537 // iscore += pix_norm1(&current_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;
538 557820 sum = pix_sum(current_data[2], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);
539 557820 cr= (sum + block_s/2)/block_s;
540 // iscore += pix_norm1(&current_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;
541 }else
542 ✗ cb = cr = 0;
543
544 557820 ic= s->c;
545 557820 ic.bytestream_start=
546 557820 ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo
547 557820 memcpy(i_state, s->block_state, sizeof(s->block_state));
548
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 557820 if(level!=s->block_max_depth)
549 100440 put_rac(&ic, &i_state[4 + s_context], 1);
550 557820 put_rac(&ic, &i_state[1 + left->type + top->type], 1);
551 557820 put_symbol(&ic, &i_state[32], l-pl , 1);
552
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 557820 if (s->nb_planes > 2) {
553 557820 put_symbol(&ic, &i_state[64], cb-pcb, 1);
554 557820 put_symbol(&ic, &i_state[96], cr-pcr, 1);
555 }
556 557820 i_len= ic.bytestream - ic.bytestream_start;
557 557820 iscore += (enc->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT;
558
559 av_assert1(iscore < 255*255*256 + enc->lambda2*10);
560 av_assert1(iscore >= 0);
561 av_assert1(l>=0 && l<=255);
562 av_assert1(pl>=0 && pl<=255);
563
564
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 557820 if(level==0){
565 156060 int varc= iscore >> 8;
566 156060 int vard= score >> 8;
567
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 156060 if (vard <= 64 || vard < varc)
568 134302 c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
569 else
570 21758 c->scene_change_score += enc->m.qscale;
571 }
572
573
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 557820 if(level!=s->block_max_depth){
574 100440 put_rac(&s->c, &s->block_state[4 + s_context], 0);
575 100440 score2 = encode_q_branch(enc, level+1, 2*x+0, 2*y+0);
576 100440 score2+= encode_q_branch(enc, level+1, 2*x+1, 2*y+0);
577 100440 score2+= encode_q_branch(enc, level+1, 2*x+0, 2*y+1);
578 100440 score2+= encode_q_branch(enc, level+1, 2*x+1, 2*y+1);
579 100440 score2+= enc->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead
580
581
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 100440 if(score2 < score && score2 < iscore)
582 88580 return score2;
583 }
584
585
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 469240 if(iscore < score){
586 82082 pred_mv(s, &pmx, &pmy, 0, left, top, tr);
587 82082 memcpy(pbbak, i_buffer, i_len);
588 82082 s->c= ic;
589 82082 s->c.bytestream_start= pbbak_start;
590 82082 s->c.bytestream= pbbak + i_len;
591 82082 set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA);
592 82082 memcpy(s->block_state, i_state, sizeof(s->block_state));
593 82082 return iscore;
594 }else{
595 387158 memcpy(pbbak, p_buffer, p_len);
596 387158 s->c= pc;
597 387158 s->c.bytestream_start= pbbak_start;
598 387158 s->c.bytestream= pbbak + p_len;
599 387158 set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0);
600 387158 memcpy(s->block_state, p_state, sizeof(s->block_state));
601 387158 return score;
602 }
603 }
604
605 9600 static void encode_q_branch2(SnowContext *s, int level, int x, int y){
606 9600 const int w= s->b_width << s->block_max_depth;
607 9600 const int rem_depth= s->block_max_depth - level;
608 9600 const int index= (x + y*w) << rem_depth;
609 9600 int trx= (x+1)<<rem_depth;
610 9600 BlockNode *b= &s->block[index];
611
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 9600 const BlockNode *left = x ? &s->block[index-1] : &null_block;
612
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 9600 const BlockNode *top = y ? &s->block[index-w] : &null_block;
613
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 9600 const BlockNode *tl = y && x ? &s->block[index-w-1] : left;
614
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 9600 const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
615 9600 int pl = left->color[0];
616 9600 int pcb= left->color[1];
617 9600 int pcr= left->color[2];
618 int pmx, pmy;
619 9600 int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
620
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 9600 int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref;
621
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 9600 int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref;
622 9600 int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
623
624
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 9600 if(s->keyframe){
625 960 set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);
626 960 return;
627 }
628
629
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 8640 if(level!=s->block_max_depth){
630 ✗ if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){
631 ✗ put_rac(&s->c, &s->block_state[4 + s_context], 1);
632 }else{
633 ✗ put_rac(&s->c, &s->block_state[4 + s_context], 0);
634 ✗ encode_q_branch2(s, level+1, 2*x+0, 2*y+0);
635 ✗ encode_q_branch2(s, level+1, 2*x+1, 2*y+0);
636 ✗ encode_q_branch2(s, level+1, 2*x+0, 2*y+1);
637 ✗ encode_q_branch2(s, level+1, 2*x+1, 2*y+1);
638 ✗ return;
639 }
640 }
641
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 8640 if(b->type & BLOCK_INTRA){
642 47 pred_mv(s, &pmx, &pmy, 0, left, top, tr);
643 47 put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1);
644 47 put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1);
645
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 47 if (s->nb_planes > 2) {
646 47 put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1);
647 47 put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1);
648 }
649 47 set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA);
650 }else{
651 8593 pred_mv(s, &pmx, &pmy, b->ref, left, top, tr);
652 8593 put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0);
653
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 8593 if(s->ref_frames > 1)
654 ✗ put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0);
655 8593 put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1);
656 8593 put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1);
657 8593 set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0);
658 }
659 }
660
661 54714 static int get_dc(SnowEncContext *enc, int mb_x, int mb_y, int plane_index)
662 {
663 54714 SnowContext *const s = &enc->com;
664 int i, x2, y2;
665 54714 Plane *p= &s->plane[plane_index];
666 54714 const int block_size = MB_SIZE >> s->block_max_depth;
667
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 54714 const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
668
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 54714 const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
669
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 54714 const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth];
670
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 54714 const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
671 54714 const int ref_stride= s->current_picture->linesize[plane_index];
672 54714 const uint8_t *src = s->input_picture->data[plane_index];
673 54714 IDWTELEM *dst= (IDWTELEM*)enc->m.sc.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned
674 54714 const int b_stride = s->b_width << s->block_max_depth;
675 54714 const int w= p->width;
676 54714 const int h= p->height;
677 54714 int index= mb_x + mb_y*b_stride;
678 54714 BlockNode *b= &s->block[index];
679 54714 BlockNode backup= *b;
680 54714 int ab=0;
681 54714 int aa=0;
682
683 av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc stuff above
684
685 54714 b->type|= BLOCK_INTRA;
686 54714 b->color[plane_index]= 0;
687 54714 memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM));
688
689
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 273570 for(i=0; i<4; i++){
690 218856 int mb_x2= mb_x + (i &1) - 1;
691 218856 int mb_y2= mb_y + (i>>1) - 1;
692 218856 int x= block_w*mb_x2 + block_w/2;
693 218856 int y= block_h*mb_y2 + block_h/2;
694
695 218856 add_yblock(s, 0, NULL, dst + (i&1)*block_w + (i>>1)*obmc_stride*block_h, NULL, obmc,
696 x, y, block_w, block_h, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index);
697
698
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 2283432 for(y2= FFMAX(y, 0); y2<FFMIN(h, y+block_h); y2++){
699
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 25475808 for(x2= FFMAX(x, 0); x2<FFMIN(w, x+block_w); x2++){
700 23411232 int index= x2-(block_w*mb_x - block_w/2) + (y2-(block_h*mb_y - block_h/2))*obmc_stride;
701 23411232 int obmc_v= obmc[index];
702 int d;
703
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 23411232 if(y<0) obmc_v += obmc[index + block_h*obmc_stride];
704
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 23411232 if(x<0) obmc_v += obmc[index + block_w];
705
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 23411232 if(y+block_h>h) obmc_v += obmc[index - block_h*obmc_stride];
706
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 23411232 if(x+block_w>w) obmc_v += obmc[index - block_w];
707 //FIXME precalculate this or simplify it somehow else
708
709 23411232 d = -dst[index] + (1<<(FRAC_BITS-1));
710 23411232 dst[index] = d;
711 23411232 ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v;
712 23411232 aa += obmc_v * obmc_v; //FIXME precalculate this
713 }
714 }
715 }
716 54714 *b= backup;
717
718
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 54714 return av_clip_uint8( ROUNDED_DIV(ab<<LOG2_OBMC_MAX, aa) ); //FIXME we should not need clipping
719 }
720
721 1263062 static inline int get_block_bits(SnowContext *s, int x, int y, int w){
722 1263062 const int b_stride = s->b_width << s->block_max_depth;
723 1263062 const int b_height = s->b_height<< s->block_max_depth;
724 1263062 int index= x + y*b_stride;
725 1263062 const BlockNode *b = &s->block[index];
726
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 1263062 const BlockNode *left = x ? &s->block[index-1] : &null_block;
727
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 1263062 const BlockNode *top = y ? &s->block[index-b_stride] : &null_block;
728
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 1263062 const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left;
729
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 1263062 const BlockNode *tr = y && x+w<b_stride ? &s->block[index-b_stride+w] : tl;
730 int dmx, dmy;
731 // int mx_context= av_log2(2*FFABS(left->mx - top->mx));
732 // int my_context= av_log2(2*FFABS(left->my - top->my));
733
734
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 1263062 if(x<0 || x>=b_stride || y>=b_height)
735 187848 return 0;
736 /*
737 1 0 0
738 01X 1-2 1
739 001XX 3-6 2-3
740 0001XXX 7-14 4-7
741 00001XXXX 15-30 8-15
742 */
743 //FIXME try accurate rate
744 //FIXME intra and inter predictors if surrounding blocks are not the same type
745
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 1075214 if(b->type & BLOCK_INTRA){
746 22775 return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0]))
747 22775 + av_log2(2*FFABS(left->color[1] - b->color[1]))
748 22775 + av_log2(2*FFABS(left->color[2] - b->color[2])));
749 }else{
750 1052439 pred_mv(s, &dmx, &dmy, b->ref, left, top, tr);
751 1052439 dmx-= b->mx;
752 1052439 dmy-= b->my;
753 1052439 return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda
754 1052439 + av_log2(2*FFABS(dmy))
755 1052439 + av_log2(2*b->ref));
756 }
757 }
758
759 306440 static int get_block_rd(SnowEncContext *enc, int mb_x, int mb_y,
760 int plane_index, uint8_t (*obmc_edged)[MB_SIZE * 2])
761 {
762 306440 SnowContext *const s = &enc->com;
763 306440 Plane *p= &s->plane[plane_index];
764 306440 const int block_size = MB_SIZE >> s->block_max_depth;
765
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 306440 const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
766
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 306440 const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
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 306440 const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
768 306440 const int ref_stride= s->current_picture->linesize[plane_index];
769 306440 uint8_t *dst= s->current_picture->data[plane_index];
770 306440 const uint8_t *src = s->input_picture->data[plane_index];
771 306440 IDWTELEM *pred= (IDWTELEM*)enc->m.sc.obmc_scratchpad + plane_index*block_size*block_size*4;
772 306440 uint8_t *cur = s->scratchbuf;
773 306440 uint8_t *tmp = s->emu_edge_buffer;
774 306440 const int b_stride = s->b_width << s->block_max_depth;
775 306440 const int b_height = s->b_height<< s->block_max_depth;
776 306440 const int w= p->width;
777 306440 const int h= p->height;
778 int distortion;
779 306440 int rate= 0;
780 306440 const int penalty_factor = get_penalty_factor(enc->lambda, enc->lambda2, s->avctx->me_cmp);
781 306440 int sx= block_w*mb_x - block_w/2;
782 306440 int sy= block_h*mb_y - block_h/2;
783 306440 int x0= FFMAX(0,-sx);
784 306440 int y0= FFMAX(0,-sy);
785 306440 int x1= FFMIN(block_w*2, w-sx);
786 306440 int y1= FFMIN(block_h*2, h-sy);
787 int i,x,y;
788
789 av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below chckinhg only block_w
790
791 306440 ff_snow_pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_h*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h);
792
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 8982168 for(y=y0; y<y1; y++){
794 8675728 const uint8_t *obmc1= obmc_edged[y];
795 8675728 const IDWTELEM *pred1 = pred + y*obmc_stride;
796 8675728 uint8_t *cur1 = cur + y*ref_stride;
797 8675728 uint8_t *dst1 = dst + sx + (sy+y)*ref_stride;
798
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 270677392 for(x=x0; x<x1; x++){
799 #if FRAC_BITS >= LOG2_OBMC_MAX
800 int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX);
801 #else
802 262001664 int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS);
803 #endif
804 262001664 v = (v + pred1[x]) >> FRAC_BITS;
805
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 262001664 if(v&(~255)) v= ~(v>>31);
806 262001664 dst1[x] = v;
807 }
808 }
809
810 /* copy the regions where obmc[] = (uint8_t)256 */
811
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812
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 68803 && (mb_y == 0 || mb_y == b_height-1)){
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 31124 if(mb_x == 0)
815 17393 x1 = block_w;
816 else
817 13731 x0 = block_w;
818
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 31124 if(mb_y == 0)
819 18162 y1 = block_h;
820 else
821 12962 y0 = block_h;
822
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 280116 for(y=y0; y<y1; y++)
823 248992 memcpy(dst + sx+x0 + (sy+y)*ref_stride, cur + x0 + y*ref_stride, x1-x0);
824 }
825
826
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 306440 if(block_w==16){
827 /* FIXME rearrange dsputil to fit 32x32 cmp functions */
828 /* FIXME check alignment of the cmp wavelet vs the encoding wavelet */
829 /* FIXME cmps overlap but do not cover the wavelet's whole support.
830 * So improving the score of one block is not strictly guaranteed
831 * to improve the score of the whole frame, thus iterative motion
832 * estimation does not always converge. */
833
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 306440 if(s->avctx->me_cmp == FF_CMP_W97)
834 306440 distortion = ff_w97_32_c(&enc->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
835 ✗ else if(s->avctx->me_cmp == FF_CMP_W53)
836 ✗ distortion = ff_w53_32_c(&enc->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
837 else{
838 ✗ distortion = 0;
839 ✗ for(i=0; i<4; i++){
840 ✗ int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride;
841 ✗ distortion += enc->m.me.me_cmp[0](&enc->m, src + off, dst + off, ref_stride, 16);
842 }
843 }
844 }else{
845 av_assert2(block_w==8);
846 ✗ distortion = enc->m.me.me_cmp[0](&enc->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2);
847 }
848
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850
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 1532200 for(i=0; i<4; i++){
851 /* ..RRr
852 * .RXx.
853 * rxx..
854 */
855 1225760 rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1);
856 }
857
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 306440 if(mb_x == b_stride-2)
858 37302 rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1);
859 }
860 306440 return distortion + rate*penalty_factor;
861 }
862
863 ✗ static int get_4block_rd(SnowEncContext *enc, int mb_x, int mb_y, int plane_index)
864 {
865 ✗ SnowContext *const s = &enc->com;
866 int i, y2;
867 ✗ Plane *p= &s->plane[plane_index];
868 ✗ const int block_size = MB_SIZE >> s->block_max_depth;
869 ✗ const int block_w = plane_index ? block_size>>s->chroma_h_shift : block_size;
870 ✗ const int block_h = plane_index ? block_size>>s->chroma_v_shift : block_size;
871 ✗ const uint8_t *obmc = plane_index ? ff_obmc_tab[s->block_max_depth+s->chroma_h_shift] : ff_obmc_tab[s->block_max_depth];
872 ✗ const int obmc_stride= plane_index ? (2*block_size)>>s->chroma_h_shift : 2*block_size;
873 ✗ const int ref_stride= s->current_picture->linesize[plane_index];
874 ✗ uint8_t *dst= s->current_picture->data[plane_index];
875 ✗ const uint8_t *src = s->input_picture->data[plane_index];
876 //FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst
877 // const has only been removed from zero_dst to suppress a warning
878 static IDWTELEM zero_dst[4096]; //FIXME
879 ✗ const int b_stride = s->b_width << s->block_max_depth;
880 ✗ const int w= p->width;
881 ✗ const int h= p->height;
882 ✗ int distortion= 0;
883 ✗ int rate= 0;
884 ✗ const int penalty_factor= get_penalty_factor(enc->lambda, enc->lambda2, s->avctx->me_cmp);
885
886 av_assert2(s->chroma_h_shift == s->chroma_v_shift); //obmc and square assumtions below
887
888 ✗ for(i=0; i<9; i++){
889 ✗ int mb_x2= mb_x + (i%3) - 1;
890 ✗ int mb_y2= mb_y + (i/3) - 1;
891 ✗ int x= block_w*mb_x2 + block_w/2;
892 ✗ int y= block_h*mb_y2 + block_h/2;
893
894 ✗ add_yblock(s, 0, NULL, zero_dst, dst, obmc,
895 x, y, block_w, block_h, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index);
896
897 //FIXME find a cleaner/simpler way to skip the outside stuff
898 ✗ for(y2= y; y2<0; y2++)
899 ✗ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
900 ✗ for(y2= h; y2<y+block_h; y2++)
901 ✗ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w);
902 ✗ if(x<0){
903 ✗ for(y2= y; y2<y+block_h; y2++)
904 ✗ memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, -x);
905 }
906 ✗ if(x+block_w > w){
907 ✗ for(y2= y; y2<y+block_h; y2++)
908 ✗ memcpy(dst + w + y2*ref_stride, src + w + y2*ref_stride, x+block_w - w);
909 }
910
911 av_assert1(block_w== 8 || block_w==16);
912 ✗ distortion += enc->m.me.me_cmp[block_w==8](&enc->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_h);
913 }
914
915 ✗ if(plane_index==0){
916 ✗ BlockNode *b= &s->block[mb_x+mb_y*b_stride];
917 ✗ int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1);
918
919 /* ..RRRr
920 * .RXXx.
921 * .RXXx.
922 * rxxx.
923 */
924 ✗ if(merged)
925 ✗ rate = get_block_bits(s, mb_x, mb_y, 2);
926 ✗ for(i=merged?4:0; i<9; i++){
927 static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}};
928 ✗ rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1);
929 }
930 }
931 ✗ return distortion + rate*penalty_factor;
932 }
933
934 21600 static int encode_subband_c0run(SnowContext *s, SubBand *b, const IDWTELEM *src, const IDWTELEM *parent, int stride, int orientation){
935 21600 const int w= b->width;
936 21600 const int h= b->height;
937 int x, y;
938
939 if(1){
940 21600 int run=0;
941 21600 int *runs = s->run_buffer;
942 21600 int run_index=0;
943 int max_index;
944
945
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946
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947 26496000 int v, p=0;
948 26496000 int /*ll=0, */l=0, lt=0, t=0, rt=0;
949 26496000 v= src[x + y*stride];
950
951
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952 25960200 t= src[x + (y-1)*stride];
953
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954 25615200 lt= src[x - 1 + (y-1)*stride];
955 }
956
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957 25615200 rt= src[x + 1 + (y-1)*stride];
958 }
959 }
960
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 26496000 if(x){
961 26129400 l= src[x - 1 + y*stride];
962 /*if(x > 1){
963 if(orientation==1) ll= src[y + (x-2)*stride];
964 else ll= src[x - 2 + y*stride];
965 }*/
966 }
967
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 26496000 if(parent){
968 26392500 int px= x>>1;
969 26392500 int py= y>>1;
970
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 26392500 if(px<b->parent->width && py<b->parent->height)
971 26380800 p= parent[px + py*2*stride];
972 }
973
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974
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 2820074 if(v){
975 291706 runs[run_index++]= run;
976 291706 run=0;
977 }else{
978 2528368 run++;
979 }
980 }
981 }
982 }
983 21600 max_index= run_index;
984 21600 runs[run_index++]= run;
985 21600 run_index=0;
986 21600 run= runs[run_index++];
987
988 21600 put_symbol2(&s->c, b->state[30], max_index, 0);
989
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 21600 if(run_index <= max_index)
990 16975 put_symbol2(&s->c, b->state[1], run, 3);
991
992
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993
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 366600 if(s->c.bytestream_end - s->c.bytestream < w*40){
994 ✗ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
995 ✗ return AVERROR(ENOMEM);
996 }
997
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998 26496000 int v, p=0;
999 26496000 int /*ll=0, */l=0, lt=0, t=0, rt=0;
1000 26496000 v= src[x + y*stride];
1001
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1003 25960200 t= src[x + (y-1)*stride];
1004
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1005 25615200 lt= src[x - 1 + (y-1)*stride];
1006 }
1007
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1008 25615200 rt= src[x + 1 + (y-1)*stride];
1009 }
1010 }
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 26496000 if(x){
1012 26129400 l= src[x - 1 + y*stride];
1013 /*if(x > 1){
1014 if(orientation==1) ll= src[y + (x-2)*stride];
1015 else ll= src[x - 2 + y*stride];
1016 }*/
1017 }
1018
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 26496000 if(parent){
1019 26392500 int px= x>>1;
1020 26392500 int py= y>>1;
1021
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 26392500 if(px<b->parent->width && py<b->parent->height)
1022 26380800 p= parent[px + py*2*stride];
1023 }
1024
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 26496000 if(/*ll|*/l|lt|t|rt|p){
1025 23675926 int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
1026
1027 23675926 put_rac(&s->c, &b->state[0][context], !!v);
1028 }else{
1029
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1030 291706 run= runs[run_index++];
1031
1032
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 291706 if(run_index <= max_index)
1033 274731 put_symbol2(&s->c, b->state[1], run, 3);
1034 av_assert2(v);
1035 }else{
1036 2528368 run--;
1037 av_assert2(!v);
1038 }
1039 }
1040
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 26496000 if(v){
1041 15993728 int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p));
1042 15993728 int l2= 2*FFABS(l) + (l<0);
1043 15993728 int t2= 2*FFABS(t) + (t<0);
1044
1045 15993728 put_symbol2(&s->c, b->state[context + 2], FFABS(v)-1, context-4);
1046 15993728 put_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l2&0xFF] + 3*ff_quant3bA[t2&0xFF]], v<0);
1047 }
1048 }
1049 }
1050 }
1051 21600 return 0;
1052 }
1053
1054 21600 static int encode_subband(SnowContext *s, SubBand *b, const IDWTELEM *src, const IDWTELEM *parent, int stride, int orientation){
1055 // encode_subband_qtree(s, b, src, parent, stride, orientation);
1056 // encode_subband_z0run(s, b, src, parent, stride, orientation);
1057 21600 return encode_subband_c0run(s, b, src, parent, stride, orientation);
1058 // encode_subband_dzr(s, b, src, parent, stride, orientation);
1059 }
1060
1061 18314 static av_always_inline int check_block_intra(SnowEncContext *enc, int mb_x, int mb_y, int p[3],
1062 uint8_t (*obmc_edged)[MB_SIZE * 2], int *best_rd)
1063 {
1064 18314 SnowContext *const s = &enc->com;
1065 18314 const int b_stride= s->b_width << s->block_max_depth;
1066 18314 BlockNode *block= &s->block[mb_x + mb_y * b_stride];
1067 18314 BlockNode backup= *block;
1068 int rd;
1069
1070 av_assert2(mb_x>=0 && mb_y>=0);
1071 av_assert2(mb_x<b_stride);
1072
1073 18314 block->color[0] = p[0];
1074 18314 block->color[1] = p[1];
1075 18314 block->color[2] = p[2];
1076 18314 block->type |= BLOCK_INTRA;
1077
1078 18314 rd = get_block_rd(enc, mb_x, mb_y, 0, obmc_edged) + enc->intra_penalty;
1079
1080 //FIXME chroma
1081
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 18314 if(rd < *best_rd){
1082 135 *best_rd= rd;
1083 135 return 1;
1084 }else{
1085 18179 *block= backup;
1086 18179 return 0;
1087 }
1088 }
1089
1090 /* special case for int[2] args we discard afterwards,
1091 * fixes compilation problem with gcc 2.95 */
1092 404968 static av_always_inline int check_block_inter(SnowEncContext *enc,
1093 int mb_x, int mb_y, int p0, int p1,
1094 uint8_t (*obmc_edged)[MB_SIZE * 2], int *best_rd)
1095 {
1096 404968 SnowContext *const s = &enc->com;
1097 404968 const int b_stride = s->b_width << s->block_max_depth;
1098 404968 BlockNode *block = &s->block[mb_x + mb_y * b_stride];
1099 404968 BlockNode backup = *block;
1100 unsigned value;
1101 int rd, index;
1102
1103 av_assert2(mb_x >= 0 && mb_y >= 0);
1104 av_assert2(mb_x < b_stride);
1105
1106 404968 index = (p0 + 31 * p1) & (ME_CACHE_SIZE-1);
1107 404968 value = enc->me_cache_generation + (p0 >> 10) + p1 * (1 << 6) + (block->ref << 12);
1108
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 404968 if (enc->me_cache[index] == value)
1109 116842 return 0;
1110 288126 enc->me_cache[index] = value;
1111
1112 288126 block->mx = p0;
1113 288126 block->my = p1;
1114 288126 block->type &= ~BLOCK_INTRA;
1115
1116 288126 rd = get_block_rd(enc, mb_x, mb_y, 0, obmc_edged);
1117
1118 //FIXME chroma
1119
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 288126 if (rd < *best_rd) {
1120 63690 *best_rd = rd;
1121 63690 return 1;
1122 } else {
1123 224436 *block = backup;
1124 224436 return 0;
1125 }
1126 }
1127
1128 ✗ static av_always_inline int check_4block_inter(SnowEncContext *enc, int mb_x, int mb_y,
1129 int p0, int p1, int ref, int *best_rd)
1130 {
1131 ✗ SnowContext *const s = &enc->com;
1132 ✗ const int b_stride= s->b_width << s->block_max_depth;
1133 ✗ BlockNode *block= &s->block[mb_x + mb_y * b_stride];
1134 BlockNode backup[4];
1135 unsigned value;
1136 int rd, index;
1137
1138 /* We don't initialize backup[] during variable declaration, because
1139 * that fails to compile on MSVC: "cannot convert from 'BlockNode' to
1140 * 'int16_t'". */
1141 ✗ backup[0] = block[0];
1142 ✗ backup[1] = block[1];
1143 ✗ backup[2] = block[b_stride];
1144 ✗ backup[3] = block[b_stride + 1];
1145
1146 av_assert2(mb_x>=0 && mb_y>=0);
1147 av_assert2(mb_x<b_stride);
1148 av_assert2(((mb_x|mb_y)&1) == 0);
1149
1150 ✗ index= (p0 + 31*p1) & (ME_CACHE_SIZE-1);
1151 ✗ value = enc->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12);
1152 ✗ if (enc->me_cache[index] == value)
1153 ✗ return 0;
1154 ✗ enc->me_cache[index] = value;
1155
1156 ✗ block->mx= p0;
1157 ✗ block->my= p1;
1158 ✗ block->ref= ref;
1159 ✗ block->type &= ~BLOCK_INTRA;
1160 ✗ block[1]= block[b_stride]= block[b_stride+1]= *block;
1161
1162 ✗ rd = get_4block_rd(enc, mb_x, mb_y, 0);
1163
1164 //FIXME chroma
1165 ✗ if(rd < *best_rd){
1166 ✗ *best_rd= rd;
1167 ✗ return 1;
1168 }else{
1169 ✗ block[0]= backup[0];
1170 ✗ block[1]= backup[1];
1171 ✗ block[b_stride]= backup[2];
1172 ✗ block[b_stride+1]= backup[3];
1173 ✗ return 0;
1174 }
1175 }
1176
1177 270 static void iterative_me(SnowEncContext *enc)
1178 {
1179 270 SnowContext *const s = &enc->com;
1180 int pass, mb_x, mb_y;
1181 270 const int b_width = s->b_width << s->block_max_depth;
1182 270 const int b_height= s->b_height << s->block_max_depth;
1183 270 const int b_stride= b_width;
1184 int color[3];
1185
1186 {
1187 270 RangeCoder r = s->c;
1188 uint8_t state[sizeof(s->block_state)];
1189 270 memcpy(state, s->block_state, sizeof(s->block_state));
1190
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 1350 for(mb_y= 0; mb_y<s->b_height; mb_y++)
1191
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 9720 for(mb_x= 0; mb_x<s->b_width; mb_x++)
1192 8640 encode_q_branch(enc, 0, mb_x, mb_y);
1193 270 s->c = r;
1194 270 memcpy(s->block_state, state, sizeof(s->block_state));
1195 }
1196
1197
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 933 for(pass=0; pass<25; pass++){
1198 933 int change= 0;
1199
1200
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 4665 for(mb_y= 0; mb_y<b_height; mb_y++){
1201
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 33588 for(mb_x= 0; mb_x<b_width; mb_x++){
1202 int dia_change, i, j, ref;
1203 29856 int best_rd= INT_MAX, ref_rd;
1204 BlockNode backup, ref_b;
1205 29856 const int index= mb_x + mb_y * b_stride;
1206 29856 BlockNode *block= &s->block[index];
1207
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 29856 BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL;
1208
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 29856 BlockNode *lb = mb_x ? &s->block[index -1] : NULL;
1209
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 29856 BlockNode *rb = mb_x+1<b_width ? &s->block[index +1] : NULL;
1210
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 29856 BlockNode *bb = mb_y+1<b_height ? &s->block[index+b_stride ] : NULL;
1211
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 29856 BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL;
1212
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 29856 BlockNode *trb= mb_x+1<b_width && mb_y ? &s->block[index-b_stride+1] : NULL;
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 29856 BlockNode *blb= mb_x && mb_y+1<b_height ? &s->block[index+b_stride-1] : NULL;
1214
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 29856 BlockNode *brb= mb_x+1<b_width && mb_y+1<b_height ? &s->block[index+b_stride+1] : NULL;
1215 29856 const int b_w= (MB_SIZE >> s->block_max_depth);
1216 uint8_t obmc_edged[MB_SIZE * 2][MB_SIZE * 2];
1217
1218
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 29856 if(pass && (block->type & BLOCK_OPT))
1219 11618 continue;
1220 18238 block->type |= BLOCK_OPT;
1221
1222 18238 backup= *block;
1223
1224
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 18238 if (!enc->me_cache_generation)
1225 21 memset(enc->me_cache, 0, sizeof(enc->me_cache));
1226 18238 enc->me_cache_generation += 1<<22;
1227
1228 //FIXME precalculate
1229 {
1230 int x, y;
1231
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 601854 for (y = 0; y < b_w * 2; y++)
1232 583616 memcpy(obmc_edged[y], ff_obmc_tab[s->block_max_depth] + y * b_w * 2, b_w * 2);
1233
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 18238 if(mb_x==0)
1234
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 73953 for(y=0; y<b_w*2; y++)
1235 71712 memset(obmc_edged[y], obmc_edged[y][0] + obmc_edged[y][b_w-1], b_w);
1236
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 18238 if(mb_x==b_stride-1)
1237
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 58179 for(y=0; y<b_w*2; y++)
1238 56416 memset(obmc_edged[y]+b_w, obmc_edged[y][b_w] + obmc_edged[y][b_w*2-1], b_w);
1239
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 18238 if(mb_y==0){
1240
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 163086 for(x=0; x<b_w*2; x++)
1241 158144 obmc_edged[0][x] += obmc_edged[b_w-1][x];
1242
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 79072 for(y=1; y<b_w; y++)
1243 74130 memcpy(obmc_edged[y], obmc_edged[0], b_w*2);
1244 }
1245
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 18238 if(mb_y==b_height-1){
1246
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 115236 for(x=0; x<b_w*2; x++)
1247 111744 obmc_edged[b_w*2-1][x] += obmc_edged[b_w][x];
1248
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 55872 for(y=b_w; y<b_w*2-1; y++)
1249 52380 memcpy(obmc_edged[y], obmc_edged[b_w*2-1], b_w*2);
1250 }
1251 }
1252
1253 //skip stuff outside the picture
1254
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 18238 if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){
1255 10627 const uint8_t *src = s->input_picture->data[0];
1256 10627 uint8_t *dst= s->current_picture->data[0];
1257 10627 const int stride= s->current_picture->linesize[0];
1258 10627 const int block_w= MB_SIZE >> s->block_max_depth;
1259 10627 const int block_h= MB_SIZE >> s->block_max_depth;
1260 10627 const int sx= block_w*mb_x - block_w/2;
1261 10627 const int sy= block_h*mb_y - block_h/2;
1262 10627 const int w= s->plane[0].width;
1263 10627 const int h= s->plane[0].height;
1264 int y;
1265
1266
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 50163 for(y=sy; y<0; y++)
1267 39536 memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
1268
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 38563 for(y=h; y<sy+block_h*2; y++)
1269 27936 memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
1270
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 10627 if(sx<0){
1271
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 73953 for(y=sy; y<sy+block_h*2; y++)
1272 71712 memcpy(dst + sx + y*stride, src + sx + y*stride, -sx);
1273 }
1274
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 10627 if(sx+block_w*2 > w){
1275
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 58179 for(y=sy; y<sy+block_h*2; y++)
1276 56416 memcpy(dst + w + y*stride, src + w + y*stride, sx+block_w*2 - w);
1277 }
1278 }
1279
1280 // intra(black) = neighbors' contribution to the current block
1281
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 72952 for(i=0; i < s->nb_planes; i++)
1282 54714 color[i]= get_dc(enc, mb_x, mb_y, i);
1283
1284 // get previous score (cannot be cached due to OBMC)
1285
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 18314 if(pass > 0 && (block->type&BLOCK_INTRA)){
1286 76 int color0[3]= {block->color[0], block->color[1], block->color[2]};
1287 76 check_block_intra(enc, mb_x, mb_y, color0, obmc_edged, &best_rd);
1288 }else
1289 18162 check_block_inter(enc, mb_x, mb_y, block->mx, block->my, obmc_edged, &best_rd);
1290
1291 18238 ref_b= *block;
1292 18238 ref_rd= best_rd;
1293
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 36476 for(ref=0; ref < s->ref_frames; ref++){
1294 18238 int16_t (*mvr)[2]= &s->ref_mvs[ref][index];
1295
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 18238 if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold
1296 ✗ continue;
1297 18238 block->ref= ref;
1298 18238 best_rd= INT_MAX;
1299
1300 18238 check_block_inter(enc, mb_x, mb_y, mvr[0][0], mvr[0][1], obmc_edged, &best_rd);
1301 18238 check_block_inter(enc, mb_x, mb_y, 0, 0, obmc_edged, &best_rd);
1302
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 18238 if(tb)
1303 13296 check_block_inter(enc, mb_x, mb_y, mvr[-b_stride][0], mvr[-b_stride][1], obmc_edged, &best_rd);
1304
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 18238 if(lb)
1305 15997 check_block_inter(enc, mb_x, mb_y, mvr[-1][0], mvr[-1][1], obmc_edged, &best_rd);
1306
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 18238 if(rb)
1307 16475 check_block_inter(enc, mb_x, mb_y, mvr[1][0], mvr[1][1], obmc_edged, &best_rd);
1308
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 18238 if(bb)
1309 14746 check_block_inter(enc, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], obmc_edged, &best_rd);
1310
1311 /* fullpel ME */
1312 //FIXME avoid subpel interpolation / round to nearest integer
1313 do{
1314 18658 int newx = block->mx;
1315 18658 int newy = block->my;
1316
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 18658 int dia_size = enc->iterative_dia_size ? enc->iterative_dia_size : FFMAX(s->avctx->dia_size, 1);
1317 18658 dia_change=0;
1318
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 55974 for(i=0; i < dia_size; i++){
1319
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 55974 for(j=0; j<i; j++){
1320 18658 dia_change |= check_block_inter(enc, mb_x, mb_y, newx+4*(i-j), newy+(4*j), obmc_edged, &best_rd);
1321 18658 dia_change |= check_block_inter(enc, mb_x, mb_y, newx-4*(i-j), newy-(4*j), obmc_edged, &best_rd);
1322 18658 dia_change |= check_block_inter(enc, mb_x, mb_y, newx-(4*j), newy+4*(i-j), obmc_edged, &best_rd);
1323 18658 dia_change |= check_block_inter(enc, mb_x, mb_y, newx+(4*j), newy-4*(i-j), obmc_edged, &best_rd);
1324 }
1325 }
1326
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 18658 }while(dia_change);
1327 /* subpel ME */
1328 do{
1329 static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},};
1330 26898 dia_change=0;
1331
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 242082 for(i=0; i<8; i++)
1332 215184 dia_change |= check_block_inter(enc, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], obmc_edged, &best_rd);
1333
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 26898 }while(dia_change);
1334 //FIXME or try the standard 2 pass qpel or similar
1335
1336 18238 mvr[0][0]= block->mx;
1337 18238 mvr[0][1]= block->my;
1338
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 18238 if(ref_rd > best_rd){
1339 4362 ref_rd= best_rd;
1340 4362 ref_b= *block;
1341 }
1342 }
1343 18238 best_rd= ref_rd;
1344 18238 *block= ref_b;
1345 18238 check_block_intra(enc, mb_x, mb_y, color, obmc_edged, &best_rd);
1346 //FIXME RD style color selection
1347
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 18238 if(!same_block(block, &backup)){
1348
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 4386 if(tb ) tb ->type &= ~BLOCK_OPT;
1349
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 4386 if(lb ) lb ->type &= ~BLOCK_OPT;
1350
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 4386 if(rb ) rb ->type &= ~BLOCK_OPT;
1351
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 4386 if(bb ) bb ->type &= ~BLOCK_OPT;
1352
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 4386 if(tlb) tlb->type &= ~BLOCK_OPT;
1353
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 4386 if(trb) trb->type &= ~BLOCK_OPT;
1354
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 4386 if(blb) blb->type &= ~BLOCK_OPT;
1355
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 4386 if(brb) brb->type &= ~BLOCK_OPT;
1356 4386 change ++;
1357 }
1358 }
1359 }
1360 933 av_log(s->avctx, AV_LOG_DEBUG, "pass:%d changed:%d\n", pass, change);
1361
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 933 if(!change)
1362 270 break;
1363 }
1364
1365
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 270 if(s->block_max_depth == 1){
1366 ✗ int change= 0;
1367 ✗ for(mb_y= 0; mb_y<b_height; mb_y+=2){
1368 ✗ for(mb_x= 0; mb_x<b_width; mb_x+=2){
1369 int i;
1370 int best_rd, init_rd;
1371 ✗ const int index= mb_x + mb_y * b_stride;
1372 BlockNode *b[4];
1373
1374 ✗ b[0]= &s->block[index];
1375 ✗ b[1]= b[0]+1;
1376 ✗ b[2]= b[0]+b_stride;
1377 ✗ b[3]= b[2]+1;
1378 ✗ if(same_block(b[0], b[1]) &&
1379 ✗ same_block(b[0], b[2]) &&
1380 ✗ same_block(b[0], b[3]))
1381 ✗ continue;
1382
1383 ✗ if (!enc->me_cache_generation)
1384 ✗ memset(enc->me_cache, 0, sizeof(enc->me_cache));
1385 ✗ enc->me_cache_generation += 1<<22;
1386
1387 ✗ init_rd = best_rd = get_4block_rd(enc, mb_x, mb_y, 0);
1388
1389 //FIXME more multiref search?
1390 ✗ check_4block_inter(enc, mb_x, mb_y,
1391 ✗ (b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2,
1392 ✗ (b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd);
1393
1394 ✗ for(i=0; i<4; i++)
1395 ✗ if(!(b[i]->type&BLOCK_INTRA))
1396 ✗ check_4block_inter(enc, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd);
1397
1398 ✗ if(init_rd != best_rd)
1399 ✗ change++;
1400 }
1401 }
1402 ✗ av_log(s->avctx, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4);
1403 }
1404 270 }
1405
1406 510 static void encode_blocks(SnowEncContext *enc, int search)
1407 {
1408 510 SnowContext *const s = &enc->com;
1409 int x, y;
1410 510 int w= s->b_width;
1411 510 int h= s->b_height;
1412
1413
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 510 if (enc->motion_est == FF_ME_ITER && !s->keyframe && search)
1414 270 iterative_me(enc);
1415
1416
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 6570 for(y=0; y<h; y++){
1417
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 6060 if(s->c.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit
1418 ✗ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
1419 ✗ return;
1420 }
1421
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 172260 for(x=0; x<w; x++){
1422
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 166200 if (enc->motion_est == FF_ME_ITER || !search)
1423 9600 encode_q_branch2(s, 0, x, y);
1424 else
1425 156600 encode_q_branch (enc, 0, x, y);
1426 }
1427 }
1428 }
1429
1430 21600 static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){
1431 21600 const int w= b->width;
1432 21600 const int h= b->height;
1433 21600 const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
1434 21600 const int qmul= ff_qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS);
1435 int x,y, thres1, thres2;
1436
1437
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 21600 if(s->qlog == LOSSLESS_QLOG){
1438
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 261000 for(y=0; y<h; y++)
1439
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 23063400 for(x=0; x<w; x++)
1440 22809600 dst[x + y*stride]= src[x + y*stride];
1441 7200 return;
1442 }
1443
1444
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 14400 bias= bias ? 0 : (3*qmul)>>3;
1445 14400 thres1= ((qmul - bias)>>QEXPSHIFT) - 1;
1446 14400 thres2= 2*thres1;
1447
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 14400 if(!bias){
1449
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 114480 for(y=0; y<h; y++){
1450
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 3419280 for(x=0; x<w; x++){
1451 3317760 int i= src[x + y*stride];
1452
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 3317760 if((unsigned)(i+thres1) > thres2){
1454
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 550371 if(i>=0){
1455 275604 i<<= QEXPSHIFT;
1456 275604 i/= qmul; //FIXME optimize
1457 275604 dst[x + y*stride]= i;
1458 }else{
1459 274767 i= -i;
1460 274767 i<<= QEXPSHIFT;
1461 274767 i/= qmul; //FIXME optimize
1462 274767 dst[x + y*stride]= -i;
1463 }
1464 }else
1465 2767389 dst[x + y*stride]= 0;
1466 }
1467 }
1468 }else{
1469
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 12720 for(y=0; y<h; y++){
1470
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 379920 for(x=0; x<w; x++){
1471 368640 int i= src[x + y*stride];
1472
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 368640 if((unsigned)(i+thres1) > thres2){
1474
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 202458 if(i>=0){
1475 101688 i<<= QEXPSHIFT;
1476 101688 i= (i + bias) / qmul; //FIXME optimize
1477 101688 dst[x + y*stride]= i;
1478 }else{
1479 100770 i= -i;
1480 100770 i<<= QEXPSHIFT;
1481 100770 i= (i + bias) / qmul; //FIXME optimize
1482 100770 dst[x + y*stride]= -i;
1483 }
1484 }else
1485 166182 dst[x + y*stride]= 0;
1486 }
1487 }
1488 }
1489 }
1490
1491 21600 static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){
1492 21600 const int w= b->width;
1493 21600 const int h= b->height;
1494 21600 const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16);
1495 21600 const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
1496 21600 const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
1497 int x,y;
1498
1499
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 21600 if(s->qlog == LOSSLESS_QLOG) return;
1500
1501
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 127200 for(y=0; y<h; y++){
1502
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 3799200 for(x=0; x<w; x++){
1503 3686400 int i= src[x + y*stride];
1504
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 3686400 if(i<0){
1505 375500 src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
1506
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 3310900 }else if(i>0){
1507 377275 src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT));
1508 }
1509 }
1510 }
1511 }
1512
1513 1350 static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
1514 1350 const int w= b->width;
1515 1350 const int h= b->height;
1516 int x,y;
1517
1518
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 5400 for(y=h-1; y>=0; y--){
1519
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 31500 for(x=w-1; x>=0; x--){
1520 27450 int i= x + y*stride;
1521
1522
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 27450 if(x){
1523
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 23400 if(use_median){
1524 ✗ if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
1525 ✗ else src[i] -= src[i - 1];
1526 }else{
1527
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 23400 if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
1528 4500 else src[i] -= src[i - 1];
1529 }
1530 }else{
1531
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 4050 if(y) src[i] -= src[i - stride];
1532 }
1533 }
1534 }
1535 1350 }
1536
1537 1350 static void correlate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){
1538 1350 const int w= b->width;
1539 1350 const int h= b->height;
1540 int x,y;
1541
1542
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 5400 for(y=0; y<h; y++){
1543
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 31500 for(x=0; x<w; x++){
1544 27450 int i= x + y*stride;
1545
1546
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 27450 if(x){
1547
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 23400 if(use_median){
1548 ✗ if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
1549 ✗ else src[i] += src[i - 1];
1550 }else{
1551
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 23400 if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
1552 4500 else src[i] += src[i - 1];
1553 }
1554 }else{
1555
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 4050 if(y) src[i] += src[i - stride];
1556 }
1557 }
1558 }
1559 1350 }
1560
1561 47 static void encode_qlogs(SnowContext *s){
1562 int plane_index, level, orientation;
1563
1564
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 141 for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
1565
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 564 for(level=0; level<s->spatial_decomposition_count; level++){
1566
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 1974 for(orientation=level ? 1:0; orientation<4; orientation++){
1567
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 1504 if(orientation==2) continue;
1568 1034 put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1);
1569 }
1570 }
1571 }
1572 47 }
1573
1574 510 static void encode_header(SnowContext *s){
1575 int plane_index, i;
1576 uint8_t kstate[32];
1577
1578 510 memset(kstate, MID_STATE, sizeof(kstate));
1579
1580 510 put_rac(&s->c, kstate, s->keyframe);
1581
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 510 if(s->keyframe || s->always_reset){
1582 47 ff_snow_reset_contexts(s);
1583 47 s->last_spatial_decomposition_type=
1584 47 s->last_qlog=
1585 47 s->last_qbias=
1586 47 s->last_mv_scale=
1587 47 s->last_block_max_depth= 0;
1588
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 141 for(plane_index=0; plane_index<2; plane_index++){
1589 94 Plane *p= &s->plane[plane_index];
1590 94 p->last_htaps=0;
1591 94 p->last_diag_mc=0;
1592 94 memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff));
1593 }
1594 }
1595
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 510 if(s->keyframe){
1596 47 put_symbol(&s->c, s->header_state, s->version, 0);
1597 47 put_rac(&s->c, s->header_state, s->always_reset);
1598 47 put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0);
1599 47 put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0);
1600 47 put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
1601 47 put_symbol(&s->c, s->header_state, s->colorspace_type, 0);
1602
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 47 if (s->nb_planes > 2) {
1603 47 put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0);
1604 47 put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0);
1605 }
1606 47 put_rac(&s->c, s->header_state, s->spatial_scalability);
1607 // put_rac(&s->c, s->header_state, s->rate_scalability);
1608 47 put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0);
1609
1610 47 encode_qlogs(s);
1611 }
1612
1613
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 510 if(!s->keyframe){
1614 463 int update_mc=0;
1615
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 1389 for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
1616 926 Plane *p= &s->plane[plane_index];
1617 926 update_mc |= p->last_htaps != p->htaps;
1618 926 update_mc |= p->last_diag_mc != p->diag_mc;
1619 926 update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
1620 }
1621 463 put_rac(&s->c, s->header_state, update_mc);
1622
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 463 if(update_mc){
1623
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 141 for(plane_index=0; plane_index<FFMIN(s->nb_planes, 2); plane_index++){
1624 94 Plane *p= &s->plane[plane_index];
1625 94 put_rac(&s->c, s->header_state, p->diag_mc);
1626 94 put_symbol(&s->c, s->header_state, p->htaps/2-1, 0);
1627
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 376 for(i= p->htaps/2; i; i--)
1628 282 put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0);
1629 }
1630 }
1631
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 463 if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
1632 ✗ put_rac(&s->c, s->header_state, 1);
1633 ✗ put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
1634 ✗ encode_qlogs(s);
1635 }else
1636 463 put_rac(&s->c, s->header_state, 0);
1637 }
1638
1639 510 put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1);
1640 510 put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1);
1641 510 put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1);
1642 510 put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1);
1643 510 put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1);
1644
1645 510 }
1646
1647 510 static void update_last_header_values(SnowContext *s){
1648 int plane_index;
1649
1650
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 510 if(!s->keyframe){
1651
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 1389 for(plane_index=0; plane_index<2; plane_index++){
1652 926 Plane *p= &s->plane[plane_index];
1653 926 p->last_diag_mc= p->diag_mc;
1654 926 p->last_htaps = p->htaps;
1655 926 memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
1656 }
1657 }
1658
1659 510 s->last_spatial_decomposition_type = s->spatial_decomposition_type;
1660 510 s->last_qlog = s->qlog;
1661 510 s->last_qbias = s->qbias;
1662 510 s->last_mv_scale = s->mv_scale;
1663 510 s->last_block_max_depth = s->block_max_depth;
1664 510 s->last_spatial_decomposition_count = s->spatial_decomposition_count;
1665 510 }
1666
1667 360 static int qscale2qlog(int qscale){
1668 360 return lrint(QROOT*log2(qscale / (float)FF_QP2LAMBDA))
1669 360 + 61*QROOT/8; ///< 64 > 60
1670 }
1671
1672 ✗ static int ratecontrol_1pass(SnowEncContext *enc, AVFrame *pict)
1673 {
1674 ✗ SnowContext *const s = &enc->com;
1675 /* Estimate the frame's complexity as a sum of weighted dwt coefficients.
1676 * FIXME we know exact mv bits at this point,
1677 * but ratecontrol isn't set up to include them. */
1678 ✗ uint32_t coef_sum= 0;
1679 int level, orientation, delta_qlog;
1680
1681 ✗ for(level=0; level<s->spatial_decomposition_count; level++){
1682 ✗ for(orientation=level ? 1 : 0; orientation<4; orientation++){
1683 ✗ SubBand *b= &s->plane[0].band[level][orientation];
1684 ✗ IDWTELEM *buf= b->ibuf;
1685 ✗ const int w= b->width;
1686 ✗ const int h= b->height;
1687 ✗ const int stride= b->stride;
1688 ✗ const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16);
1689 ✗ const int qmul= ff_qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT);
1690 ✗ const int qdiv= (1<<16)/qmul;
1691 int x, y;
1692 //FIXME this is ugly
1693 ✗ for(y=0; y<h; y++)
1694 ✗ for(x=0; x<w; x++)
1695 ✗ buf[x+y*stride]= b->buf[x+y*stride];
1696 ✗ if(orientation==0)
1697 ✗ decorrelate(s, b, buf, stride, 1, 0);
1698 ✗ for(y=0; y<h; y++)
1699 ✗ for(x=0; x<w; x++)
1700 ✗ coef_sum+= abs(buf[x+y*stride]) * qdiv >> 16;
1701 }
1702 }
1703
1704 /* ugly, ratecontrol just takes a sqrt again */
1705 ✗ av_assert0(coef_sum < INT_MAX);
1706 ✗ coef_sum = (uint64_t)coef_sum * coef_sum >> 16;
1707
1708 ✗ if(pict->pict_type == AV_PICTURE_TYPE_I){
1709 ✗ enc->m.mb_var_sum = coef_sum;
1710 ✗ enc->m.mc_mb_var_sum = 0;
1711 }else{
1712 ✗ enc->m.mc_mb_var_sum = coef_sum;
1713 ✗ enc->m.mb_var_sum = 0;
1714 }
1715
1716 ✗ pict->quality= ff_rate_estimate_qscale(&enc->m, 1);
1717 ✗ if (pict->quality < 0)
1718 ✗ return INT_MIN;
1719 ✗ enc->lambda= pict->quality * 3/2;
1720 ✗ delta_qlog= qscale2qlog(pict->quality) - s->qlog;
1721 ✗ s->qlog+= delta_qlog;
1722 ✗ return delta_qlog;
1723 }
1724
1725 33 static void calculate_visual_weight(SnowContext *s, Plane *p){
1726 33 int width = p->width;
1727 33 int height= p->height;
1728 int level, orientation, x, y;
1729
1730
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 198 for(level=0; level<s->spatial_decomposition_count; level++){
1731 165 int64_t error=0;
1732
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 693 for(orientation=level ? 1 : 0; orientation<4; orientation++){
1733 528 SubBand *b= &p->band[level][orientation];
1734 528 IDWTELEM *ibuf= b->ibuf;
1735
1736 528 memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height);
1737 528 ibuf[b->width/2 + b->height/2*b->stride]= 256*16;
1738 528 ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
1739
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 77328 for(y=0; y<height; y++){
1740
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 28462080 for(x=0; x<width; x++){
1741 28385280 int64_t d= s->spatial_idwt_buffer[x + y*width]*16;
1742 28385280 error += d*d;
1743 }
1744 }
1745
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 528 if (orientation == 2)
1746 165 error /= 2;
1747 528 b->qlog= (int)(QROOT * log2(352256.0/sqrt(error)) + 0.5);
1748
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 528 if (orientation != 1)
1749 363 error = 0;
1750 }
1751 165 p->band[level][1].qlog = p->band[level][2].qlog;
1752 }
1753 33 }
1754
1755 510 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1756 const AVFrame *pict, int *got_packet)
1757 {
1758 510 SnowEncContext *const enc = avctx->priv_data;
1759 510 SnowContext *const s = &enc->com;
1760 510 MpegEncContext *const mpv = &enc->m;
1761 510 RangeCoder * const c= &s->c;
1762 510 AVCodecInternal *avci = avctx->internal;
1763 AVFrame *pic;
1764 510 const int width= s->avctx->width;
1765 510 const int height= s->avctx->height;
1766 int level, orientation, plane_index, i, y, ret;
1767 uint8_t rc_header_bak[sizeof(s->header_state)];
1768 uint8_t rc_block_bak[sizeof(s->block_state)];
1769
1770
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 510 if ((ret = ff_alloc_packet(avctx, pkt, s->b_width*s->b_height*MB_SIZE*MB_SIZE*3 + FF_INPUT_BUFFER_MIN_SIZE)) < 0)
1771 ✗ return ret;
1772
1773 510 ff_init_range_encoder(c, pkt->data, pkt->size);
1774 510 ff_build_rac_states(c, (1LL<<32)/20, 256-8);
1775
1776
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 2040 for(i=0; i < s->nb_planes; i++){
1777
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 1530 int hshift= i ? s->chroma_h_shift : 0;
1778
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 1530 int vshift= i ? s->chroma_v_shift : 0;
1779
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 195450 for(y=0; y<AV_CEIL_RSHIFT(height, vshift); y++)
1780 193920 memcpy(&s->input_picture->data[i][y * s->input_picture->linesize[i]],
1781 193920 &pict->data[i][y * pict->linesize[i]],
1782 193920 AV_CEIL_RSHIFT(width, hshift));
1783 1530 enc->mpvencdsp.draw_edges(s->input_picture->data[i], s->input_picture->linesize[i],
1784 1530 AV_CEIL_RSHIFT(width, hshift), AV_CEIL_RSHIFT(height, vshift),
1785 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1786 EDGE_TOP | EDGE_BOTTOM);
1787
1788 }
1789 510 emms_c();
1790 510 pic = s->input_picture;
1791 510 pic->pict_type = pict->pict_type;
1792 510 pic->quality = pict->quality;
1793
1794 510 mpv->picture_number = avctx->frame_num;
1795
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 510 if(avctx->flags&AV_CODEC_FLAG_PASS2){
1796 ✗ mpv->pict_type = pic->pict_type = mpv->rc_context.entry[avctx->frame_num].new_pict_type;
1797 ✗ s->keyframe = pic->pict_type == AV_PICTURE_TYPE_I;
1798 ✗ if(!(avctx->flags&AV_CODEC_FLAG_QSCALE)) {
1799 ✗ pic->quality = ff_rate_estimate_qscale(mpv, 0);
1800 ✗ if (pic->quality < 0)
1801 ✗ return -1;
1802 }
1803 }else{
1804
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 510 s->keyframe= avctx->gop_size==0 || avctx->frame_num % avctx->gop_size == 0;
1805
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 510 mpv->pict_type = pic->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
1806 }
1807
1808
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 510 if (enc->pass1_rc && avctx->frame_num == 0)
1809 ✗ pic->quality = 2*FF_QP2LAMBDA;
1810
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 510 if (pic->quality) {
1811 360 s->qlog = qscale2qlog(pic->quality);
1812 360 enc->lambda = pic->quality * 3/2;
1813 }
1814
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 510 if (s->qlog < 0 || (!pic->quality && (avctx->flags & AV_CODEC_FLAG_QSCALE))) {
1815 150 s->qlog= LOSSLESS_QLOG;
1816 150 enc->lambda = 0;
1817 }//else keep previous frame's qlog until after motion estimation
1818
1819
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 510 if (s->current_picture->data[0]) {
1820 499 int w = s->avctx->width;
1821 499 int h = s->avctx->height;
1822
1823 499 enc->mpvencdsp.draw_edges(s->current_picture->data[0],
1824 499 s->current_picture->linesize[0], w , h ,
1825 EDGE_WIDTH , EDGE_WIDTH , EDGE_TOP | EDGE_BOTTOM);
1826
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 499 if (s->current_picture->data[2]) {
1827 499 enc->mpvencdsp.draw_edges(s->current_picture->data[1],
1828 499 s->current_picture->linesize[1], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
1829 499 EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
1830 499 enc->mpvencdsp.draw_edges(s->current_picture->data[2],
1831 499 s->current_picture->linesize[2], w>>s->chroma_h_shift, h>>s->chroma_v_shift,
1832 499 EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM);
1833 }
1834 499 emms_c();
1835 }
1836
1837 510 ff_snow_frames_prepare(s);
1838 510 ret = get_encode_buffer(s, s->current_picture);
1839
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 510 if (ret < 0)
1840 ✗ return ret;
1841
1842 510 mpv->cur_pic.ptr = &enc->cur_pic;
1843 510 mpv->cur_pic.ptr->f = s->current_picture;
1844 510 mpv->cur_pic.ptr->f->pts = pict->pts;
1845
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 510 if(pic->pict_type == AV_PICTURE_TYPE_P){
1846 463 int block_width = (width +15)>>4;
1847 463 int block_height= (height+15)>>4;
1848 463 int stride= s->current_picture->linesize[0];
1849
1850
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 463 av_assert0(s->current_picture->data[0]);
1851
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 463 av_assert0(s->last_picture[0]->data[0]);
1852
1853 463 mpv->avctx = s->avctx;
1854 463 mpv->last_pic.ptr = &enc->last_pic;
1855 463 mpv->last_pic.ptr->f = s->last_picture[0];
1856 463 mpv-> new_pic = s->input_picture;
1857 463 mpv->linesize = stride;
1858 463 mpv->uvlinesize = s->current_picture->linesize[1];
1859 463 mpv->width = width;
1860 463 mpv->height = height;
1861 463 mpv->mb_width = block_width;
1862 463 mpv->mb_height = block_height;
1863 463 mpv->mb_stride = mpv->mb_width + 1;
1864 463 mpv->b8_stride = 2 * mpv->mb_width + 1;
1865 463 mpv->f_code = 1;
1866 463 mpv->pict_type = pic->pict_type;
1867 463 mpv->motion_est = enc->motion_est;
1868 463 mpv->me.scene_change_score = 0;
1869 463 mpv->me.dia_size = avctx->dia_size;
1870 463 mpv->quarter_sample = (s->avctx->flags & AV_CODEC_FLAG_QPEL)!=0;
1871 463 mpv->out_format = FMT_H263;
1872 463 mpv->unrestricted_mv = 1;
1873
1874 463 mpv->lambda = enc->lambda;
1875 463 mpv->qscale = (mpv->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
1876 463 enc->lambda2 = mpv->lambda2 = (mpv->lambda*mpv->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
1877
1878 463 mpv->qdsp = enc->qdsp; //move
1879 463 mpv->hdsp = s->hdsp;
1880 463 ff_me_init_pic(&enc->m);
1881 463 s->hdsp = mpv->hdsp;
1882 }
1883
1884
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 510 if (enc->pass1_rc) {
1885 ✗ memcpy(rc_header_bak, s->header_state, sizeof(s->header_state));
1886 ✗ memcpy(rc_block_bak, s->block_state, sizeof(s->block_state));
1887 }
1888
1889 510 redo_frame:
1890
1891 510 s->spatial_decomposition_count= 5;
1892
1893 510 while( !(width >>(s->chroma_h_shift + s->spatial_decomposition_count))
1894
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 510 || !(height>>(s->chroma_v_shift + s->spatial_decomposition_count)))
1895 ✗ s->spatial_decomposition_count--;
1896
1897
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 510 if (s->spatial_decomposition_count <= 0) {
1898 ✗ av_log(avctx, AV_LOG_ERROR, "Resolution too low\n");
1899 ✗ return AVERROR(EINVAL);
1900 }
1901
1902 510 mpv->pict_type = pic->pict_type;
1903
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 510 s->qbias = pic->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
1904
1905 510 ff_snow_common_init_after_header(avctx);
1906
1907
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 510 if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
1908
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 44 for(plane_index=0; plane_index < s->nb_planes; plane_index++){
1909 33 calculate_visual_weight(s, &s->plane[plane_index]);
1910 }
1911 }
1912
1913 510 encode_header(s);
1914 510 mpv->misc_bits = 8 * (s->c.bytestream - s->c.bytestream_start);
1915 510 encode_blocks(enc, 1);
1916 510 mpv->mv_bits = 8 * (s->c.bytestream - s->c.bytestream_start) - mpv->misc_bits;
1917
1918
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 2040 for(plane_index=0; plane_index < s->nb_planes; plane_index++){
1919 1530 Plane *p= &s->plane[plane_index];
1920 1530 int w= p->width;
1921 1530 int h= p->height;
1922 int x, y;
1923 // int bits= put_bits_count(&s->c.pb);
1924
1925
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 1530 if (!enc->memc_only) {
1926 //FIXME optimize
1927
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 1350 if(pict->data[plane_index]) //FIXME gray hack
1928
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 126150 for(y=0; y<h; y++){
1929
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 26620800 for(x=0; x<w; x++){
1930 26496000 s->spatial_idwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<FRAC_BITS;
1931 }
1932 }
1933 1350 predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
1934
1935
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 1350 if( plane_index==0
1936
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 450 && pic->pict_type == AV_PICTURE_TYPE_P
1937
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 405 && !(avctx->flags&AV_CODEC_FLAG_PASS2)
1938
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 405 && mpv->me.scene_change_score > enc->scenechange_threshold) {
1939 ✗ ff_init_range_encoder(c, pkt->data, pkt->size);
1940 ✗ ff_build_rac_states(c, (1LL<<32)/20, 256-8);
1941 ✗ pic->pict_type= AV_PICTURE_TYPE_I;
1942 ✗ s->keyframe=1;
1943 ✗ s->current_picture->flags |= AV_FRAME_FLAG_KEY;
1944 ✗ goto redo_frame;
1945 }
1946
1947
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 1350 if(s->qlog == LOSSLESS_QLOG){
1948
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 86850 for(y=0; y<h; y++){
1949
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 22896000 for(x=0; x<w; x++){
1950 22809600 s->spatial_dwt_buffer[y*w + x]= (s->spatial_idwt_buffer[y*w + x] + (1<<(FRAC_BITS-1))-1)>>FRAC_BITS;
1951 }
1952 }
1953 }else{
1954
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 39300 for(y=0; y<h; y++){
1955
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 3724800 for(x=0; x<w; x++){
1956 3686400 s->spatial_dwt_buffer[y*w + x]= s->spatial_idwt_buffer[y*w + x] * (1 << ENCODER_EXTRA_BITS);
1957 }
1958 }
1959 }
1960
1961 1350 ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
1962
1963
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 1350 if (enc->pass1_rc && plane_index==0) {
1964 ✗ int delta_qlog = ratecontrol_1pass(enc, pic);
1965 ✗ if (delta_qlog <= INT_MIN)
1966 ✗ return -1;
1967 ✗ if(delta_qlog){
1968 //reordering qlog in the bitstream would eliminate this reset
1969 ✗ ff_init_range_encoder(c, pkt->data, pkt->size);
1970 ✗ memcpy(s->header_state, rc_header_bak, sizeof(s->header_state));
1971 ✗ memcpy(s->block_state, rc_block_bak, sizeof(s->block_state));
1972 ✗ encode_header(s);
1973 ✗ encode_blocks(enc, 0);
1974 }
1975 }
1976
1977
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 8100 for(level=0; level<s->spatial_decomposition_count; level++){
1978
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 28350 for(orientation=level ? 1 : 0; orientation<4; orientation++){
1979 21600 SubBand *b= &p->band[level][orientation];
1980
1981 21600 quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
1982
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 21600 if(orientation==0)
1983 1350 decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
1984
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 21600 if (!enc->no_bitstream)
1985
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 21600 encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
1986
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 21600 av_assert0(b->parent==NULL || b->parent->stride == b->stride*2);
1987
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 21600 if(orientation==0)
1988 1350 correlate(s, b, b->ibuf, b->stride, 1, 0);
1989 }
1990 }
1991
1992
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 8100 for(level=0; level<s->spatial_decomposition_count; level++){
1993
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 28350 for(orientation=level ? 1 : 0; orientation<4; orientation++){
1994 21600 SubBand *b= &p->band[level][orientation];
1995
1996 21600 dequantize(s, b, b->ibuf, b->stride);
1997 }
1998 }
1999
2000 1350 ff_spatial_idwt(s->spatial_idwt_buffer, s->temp_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
2001
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 1350 if(s->qlog == LOSSLESS_QLOG){
2002
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 86850 for(y=0; y<h; y++){
2003
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 22896000 for(x=0; x<w; x++){
2004 22809600 s->spatial_idwt_buffer[y*w + x] *= 1 << FRAC_BITS;
2005 }
2006 }
2007 }
2008 1350 predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
2009 }else{
2010 //ME/MC only
2011
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 180 if(pic->pict_type == AV_PICTURE_TYPE_I){
2012
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 2310 for(y=0; y<h; y++){
2013
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 1246464 for(x=0; x<w; x++){
2014 1244160 s->current_picture->data[plane_index][y*s->current_picture->linesize[plane_index] + x]=
2015 1244160 pict->data[plane_index][y*pict->linesize[plane_index] + x];
2016 }
2017 }
2018 }else{
2019 174 memset(s->spatial_idwt_buffer, 0, sizeof(IDWTELEM)*w*h);
2020 174 predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
2021 }
2022 }
2023
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 1530 if(s->avctx->flags&AV_CODEC_FLAG_PSNR){
2024 ✗ int64_t error= 0;
2025
2026 ✗ if(pict->data[plane_index]) //FIXME gray hack
2027 ✗ for(y=0; y<h; y++){
2028 ✗ for(x=0; x<w; x++){
2029 ✗ int d= s->current_picture->data[plane_index][y*s->current_picture->linesize[plane_index] + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x];
2030 ✗ error += d*d;
2031 }
2032 }
2033 ✗ s->avctx->error[plane_index] += error;
2034 ✗ enc->encoding_error[plane_index] = error;
2035 }
2036
2037 }
2038 510 emms_c();
2039
2040 510 update_last_header_values(s);
2041
2042 510 ff_snow_release_buffer(avctx);
2043
2044 510 s->current_picture->pict_type = pic->pict_type;
2045 510 s->current_picture->quality = pic->quality;
2046 510 mpv->frame_bits = 8 * (s->c.bytestream - s->c.bytestream_start);
2047 510 mpv->p_tex_bits = mpv->frame_bits - mpv->misc_bits - mpv->mv_bits;
2048 510 mpv->total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
2049 510 enc->cur_pic.display_picture_number =
2050 510 enc->cur_pic.coded_picture_number = avctx->frame_num;
2051 510 enc->cur_pic.f->quality = pic->quality;
2052
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 510 if (enc->pass1_rc)
2053 ✗ if (ff_rate_estimate_qscale(mpv, 0) < 0)
2054 ✗ return -1;
2055
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 510 if(avctx->flags&AV_CODEC_FLAG_PASS1)
2056 ✗ ff_write_pass1_stats(mpv);
2057 510 mpv->last_pict_type = mpv->pict_type;
2058
2059 510 emms_c();
2060
2061 510 ff_side_data_set_encoder_stats(pkt, s->current_picture->quality,
2062 510 enc->encoding_error,
2063 510 (s->avctx->flags&AV_CODEC_FLAG_PSNR) ? SNOW_MAX_PLANES : 0,
2064 510 s->current_picture->pict_type);
2065
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 510 if (s->avctx->flags & AV_CODEC_FLAG_RECON_FRAME) {
2066 60 av_frame_replace(avci->recon_frame, s->current_picture);
2067 }
2068
2069 510 pkt->size = ff_rac_terminate(c, 0);
2070
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✓ Branch 1 taken 463 times.
 510 if (s->current_picture->flags & AV_FRAME_FLAG_KEY)
2071 47 pkt->flags |= AV_PKT_FLAG_KEY;
2072 510 *got_packet = 1;
2073
2074 510 return 0;
2075 }
2076
2077 11 static av_cold int encode_end(AVCodecContext *avctx)
2078 {
2079 11 SnowEncContext *const enc = avctx->priv_data;
2080 11 SnowContext *const s = &enc->com;
2081
2082 11 ff_snow_common_end(s);
2083 11 ff_rate_control_uninit(&enc->m.rc_context);
2084 11 av_frame_free(&s->input_picture);
2085
2086
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 99 for (int i = 0; i < MAX_REF_FRAMES; i++) {
2087 88 av_freep(&s->ref_mvs[i]);
2088 88 av_freep(&s->ref_scores[i]);
2089 }
2090
2091 11 enc->m.me.temp = NULL;
2092 11 av_freep(&enc->m.me.scratchpad);
2093 11 av_freep(&enc->m.me.map);
2094 11 av_freep(&enc->m.sc.obmc_scratchpad);
2095
2096 11 av_freep(&avctx->stats_out);
2097
2098 11 return 0;
2099 }
2100
2101 #define OFFSET(x) offsetof(SnowEncContext, x)
2102 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
2103 static const AVOption options[] = {
2104 {"motion_est", "motion estimation algorithm", OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_ITER, VE, .unit = "motion_est" },
2105 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, VE, .unit = "motion_est" },
2106 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, VE, .unit = "motion_est" },
2107 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, VE, .unit = "motion_est" },
2108 { "iter", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ITER }, 0, 0, VE, .unit = "motion_est" },
2109 { "memc_only", "Only do ME/MC (I frames -> ref, P frame -> ME+MC).", OFFSET(memc_only), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
2110 { "no_bitstream", "Skip final bitstream writeout.", OFFSET(no_bitstream), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
2111 { "intra_penalty", "Penalty for intra blocks in block decission", OFFSET(intra_penalty), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
2112 { "iterative_dia_size", "Dia size for the iterative ME", OFFSET(iterative_dia_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
2113 { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, VE },
2114 { "pred", "Spatial decomposition type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, DWT_97, DWT_53, VE, .unit = "pred" },
2115 { "dwt97", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, .unit = "pred" },
2116 { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "pred" },
2117 { "rc_eq", "Set rate control equation. When computing the expression, besides the standard functions "
2118 "defined in the section 'Expression Evaluation', the following functions are available: "
2119 "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv "
2120 "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.",
2121 OFFSET(m.rc_eq), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VE },
2122 { NULL },
2123 };
2124
2125 static const AVClass snowenc_class = {
2126 .class_name = "snow encoder",
2127 .item_name = av_default_item_name,
2128 .option = options,
2129 .version = LIBAVUTIL_VERSION_INT,
2130 };
2131
2132 const FFCodec ff_snow_encoder = {
2133 .p.name = "snow",
2134 CODEC_LONG_NAME("Snow"),
2135 .p.type = AVMEDIA_TYPE_VIDEO,
2136 .p.id = AV_CODEC_ID_SNOW,
2137 .p.capabilities = AV_CODEC_CAP_DR1 |
2138 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE |
2139 AV_CODEC_CAP_ENCODER_RECON_FRAME,
2140 .priv_data_size = sizeof(SnowEncContext),
2141 .init = encode_init,
2142 FF_CODEC_ENCODE_CB(encode_frame),
2143 .close = encode_end,
2144 .p.pix_fmts = (const enum AVPixelFormat[]){
2145 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV444P,
2146 AV_PIX_FMT_GRAY8,
2147 AV_PIX_FMT_NONE
2148 },
2149 .p.priv_class = &snowenc_class,
2150 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
2151 };
2152