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1 : | suxen_drol | 942 | /****************************************************************************** |
2 : | * | ||
3 : | * XviD Bit Rate Controller Library | ||
4 : | * - VBR 2 pass bitrate controler implementation - | ||
5 : | * | ||
6 : | * Copyright (C) 2002 Edouard Gomez <ed.gomez@wanadoo.fr> | ||
7 : | * | ||
8 : | * The curve treatment algorithm is the one implemented by Foxer <email?> and | ||
9 : | * Dirk Knop <dknop@gwdg.de> for the XviD vfw dynamic library. | ||
10 : | * | ||
11 : | * This program is free software; you can redistribute it and/or modify | ||
12 : | * it under the terms of the GNU General Public License as published by | ||
13 : | * the Free Software Foundation; either version 2 of the License, or | ||
14 : | * (at your option) any later version. | ||
15 : | * | ||
16 : | * This program is distributed in the hope that it will be useful, | ||
17 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
19 : | * GNU General Public License for more details. | ||
20 : | * | ||
21 : | * You should have received a copy of the GNU General Public License | ||
22 : | * along with this program; if not, write to the Free Software | ||
23 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
24 : | * | ||
25 : | suxen_drol | 1014 | * $Id: plugin_2pass2.c,v 1.1.2.3 2003-05-12 12:33:16 suxen_drol Exp $ |
26 : | suxen_drol | 942 | * |
27 : | *****************************************************************************/ | ||
28 : | |||
29 : | #include <stdio.h> | ||
30 : | #include <math.h> | ||
31 : | |||
32 : | #define RAD2DEG 57.295779513082320876798154814105 | ||
33 : | #define DEG2RAD 0.017453292519943295769236907684886 | ||
34 : | |||
35 : | #include "../xvid.h" | ||
36 : | #include "../image/image.h" | ||
37 : | |||
38 : | typedef struct { | ||
39 : | int type; /* first pass type */ | ||
40 : | int quant; /* first pass quant */ | ||
41 : | suxen_drol | 977 | int blks[3]; /* k,m,y blks */ |
42 : | suxen_drol | 942 | int length; /* first pass length */ |
43 : | int scaled_length; /* scaled length */ | ||
44 : | int desired_length; | ||
45 : | } stat_t; | ||
46 : | |||
47 : | |||
48 : | |||
49 : | |||
50 : | /* context struct */ | ||
51 : | typedef struct | ||
52 : | { | ||
53 : | xvid_plugin_2pass2_t param; | ||
54 : | |||
55 : | /* constant statistical data */ | ||
56 : | suxen_drol | 977 | int num_frames; |
57 : | suxen_drol | 942 | int num_keyframes; |
58 : | suxen_drol | 977 | uint64_t target; /* target bitrate */ |
59 : | |||
60 : | suxen_drol | 942 | int count[3]; /* count of each frame types */ |
61 : | uint64_t tot_length[3]; /* total length of each frame types */ | ||
62 : | double avg_length[3]; /* avg */ | ||
63 : | int min_length[3]; /* min frame length of each frame types */ | ||
64 : | uint64_t tot_scaled_length[3]; /* total scaled length of each frame type */ | ||
65 : | int max_length; /* max frame size */ | ||
66 : | |||
67 : | double curve_comp_scale; | ||
68 : | double movie_curve; | ||
69 : | |||
70 : | double alt_curve_low; | ||
71 : | double alt_curve_high; | ||
72 : | double alt_curve_low_diff; | ||
73 : | double alt_curve_high_diff; | ||
74 : | double alt_curve_curve_bias_bonus; | ||
75 : | double alt_curve_mid_qual; | ||
76 : | double alt_curve_qual_dev; | ||
77 : | |||
78 : | /* dynamic */ | ||
79 : | |||
80 : | int * keyframe_locations; | ||
81 : | stat_t * stats; | ||
82 : | |||
83 : | double pquant_error[32]; | ||
84 : | double bquant_error[32]; | ||
85 : | int quant_count[32]; | ||
86 : | int last_quant[3]; | ||
87 : | |||
88 : | double curve_comp_error; | ||
89 : | int overflow; | ||
90 : | int KFoverflow; | ||
91 : | int KFoverflow_partial; | ||
92 : | int KF_idx; | ||
93 : | } rc_2pass2_t; | ||
94 : | |||
95 : | |||
96 : | |||
97 : | #define BUF_SZ 1024 | ||
98 : | #define MAX_COLS 5 | ||
99 : | |||
100 : | |||
101 : | /* open stats file, and count num frames */ | ||
102 : | |||
103 : | static int det_stats_length(rc_2pass2_t * rc, char * filename) | ||
104 : | { | ||
105 : | FILE * f; | ||
106 : | int n, ignore; | ||
107 : | char type; | ||
108 : | |||
109 : | rc->num_frames = 0; | ||
110 : | rc->num_keyframes = 0; | ||
111 : | |||
112 : | if ((f = fopen(filename, "rt")) == NULL) | ||
113 : | return 0; | ||
114 : | |||
115 : | suxen_drol | 977 | while((n = fscanf(f, "%c %d %d %d %d %d %d\n", |
116 : | &type, &ignore, &ignore, &ignore, &ignore, &ignore, &ignore)) != EOF) { | ||
117 : | suxen_drol | 942 | if (type == 'i') { |
118 : | rc->num_frames++; | ||
119 : | rc->num_keyframes++; | ||
120 : | }else if (type == 'p' || type == 'b' || type == 's') { | ||
121 : | rc->num_frames++; | ||
122 : | } | ||
123 : | } | ||
124 : | |||
125 : | fclose(f); | ||
126 : | |||
127 : | return 1; | ||
128 : | } | ||
129 : | |||
130 : | |||
131 : | suxen_drol | 977 | /* scale the curve */ |
132 : | suxen_drol | 942 | |
133 : | suxen_drol | 977 | static void internal_scale(rc_2pass2_t *rc) |
134 : | suxen_drol | 942 | { |
135 : | suxen_drol | 977 | int64_t target = rc->target; |
136 : | int64_t tot_length = rc->tot_length[0] + rc->tot_length[1] + rc->tot_length[2]; | ||
137 : | int min_size[3]; | ||
138 : | double scaler; | ||
139 : | int i; | ||
140 : | |||
141 : | if (target <= 0 || target >= tot_length) { | ||
142 : | printf("undersize warning\n"); | ||
143 : | } | ||
144 : | suxen_drol | 942 | |
145 : | suxen_drol | 977 | /* perform an initial scale pass. |
146 : | if a frame size is scaled underneath our hardcoded minimums, then we force the | ||
147 : | frame size to the minimum, and deduct the original & scaled frmae length from the | ||
148 : | original and target total lengths */ | ||
149 : | suxen_drol | 942 | |
150 : | suxen_drol | 977 | min_size[0] = ((rc->stats[0].blks[0]*22) + 240) / 8; |
151 : | min_size[1] = (rc->stats[0].blks[0] + 88) / 8; | ||
152 : | min_size[2] = 8; | ||
153 : | suxen_drol | 942 | |
154 : | |||
155 : | suxen_drol | 977 | scaler = (double)target / (double)tot_length; |
156 : | //printf("target=%i, tot_length=%i, scaler=%f\n", (int)target, (int)tot_length, scaler); | ||
157 : | suxen_drol | 942 | |
158 : | suxen_drol | 977 | for (i=0; i<rc->num_frames; i++) { |
159 : | stat_t * s = &rc->stats[i]; | ||
160 : | int len; | ||
161 : | |||
162 : | len = (int)((double)s->length * scaler); | ||
163 : | if (len < min_size[s->type]) { /* force frame size */ | ||
164 : | s->scaled_length = min_size[s->type]; | ||
165 : | target -= s->scaled_length; | ||
166 : | tot_length -= s->length; | ||
167 : | }else{ | ||
168 : | s->scaled_length = 0; | ||
169 : | } | ||
170 : | } | ||
171 : | suxen_drol | 942 | |
172 : | suxen_drol | 977 | if (target <= 0 || target >= tot_length) { |
173 : | printf("undersize warning\n"); | ||
174 : | return; | ||
175 : | } | ||
176 : | suxen_drol | 942 | |
177 : | suxen_drol | 977 | scaler = (double)target / (double)tot_length; |
178 : | //printf("target=%i, tot_length=%i, scaler=%f\n", (int)target, (int)tot_length, scaler); | ||
179 : | suxen_drol | 942 | |
180 : | suxen_drol | 977 | for (i=0; i<rc->num_frames; i++) { |
181 : | stat_t * s = &rc->stats[i]; | ||
182 : | |||
183 : | if (s->scaled_length==0) { /* ignore frame with forced frame sizes */ | ||
184 : | s->scaled_length = (int)((double)s->length * scaler); | ||
185 : | } | ||
186 : | } | ||
187 : | |||
188 : | suxen_drol | 942 | } |
189 : | |||
190 : | |||
191 : | suxen_drol | 977 | |
192 : | |||
193 : | |||
194 : | /* static void internal_scale(rc_2pass2_t *rc) | ||
195 : | suxen_drol | 942 | { |
196 : | const double avg_pvop = rc->avg_length[XVID_TYPE_PVOP-1]; | ||
197 : | const double avg_bvop = rc->avg_length[XVID_TYPE_BVOP-1]; | ||
198 : | const uint64_t tot_pvop = rc->tot_length[XVID_TYPE_PVOP-1]; | ||
199 : | const uint64_t tot_bvop = rc->tot_length[XVID_TYPE_BVOP-1]; | ||
200 : | uint64_t i_total = 0; | ||
201 : | double total1,total2; | ||
202 : | int i; | ||
203 : | |||
204 : | for (i=0; i<rc->num_frames; i++) { | ||
205 : | stat_t * s = &rc->stats[i]; | ||
206 : | |||
207 : | if (s->type == XVID_TYPE_IVOP) { | ||
208 : | i_total += s->length + s->length * rc->param.keyframe_boost / 100; | ||
209 : | } | ||
210 : | } | ||
211 : | |||
212 : | // compensate for avi frame overhead | ||
213 : | rc->target_size -= rc->num_frames * 24; | ||
214 : | |||
215 : | // perform prepass to compensate for over/undersizing | ||
216 : | |||
217 : | if (rc->param.use_alt_curve) { | ||
218 : | |||
219 : | rc->alt_curve_low = avg_pvop - avg_pvop * (double)rc->param.alt_curve_low_dist / 100.0; | ||
220 : | rc->alt_curve_low_diff = avg_pvop - rc->alt_curve_low; | ||
221 : | rc->alt_curve_high = avg_pvop + avg_pvop * (double)rc->param.alt_curve_high_dist / 100.0; | ||
222 : | rc->alt_curve_high_diff = rc->alt_curve_high - avg_pvop; | ||
223 : | if (rc->alt_curve_use_auto) { | ||
224 : | if (rc->movie_curve > 1.0) { | ||
225 : | rc->param.alt_curve_min_rel_qual = (int)(100.0 - (100.0 - 100.0 / rc->movie_curve) * (double)rc->param.alt_curve_auto_str / 100.0); | ||
226 : | if (rc->param.alt_curve_min_rel_qual < 20) | ||
227 : | rc->param.alt_curve_min_rel_qual = 20; | ||
228 : | }else{ | ||
229 : | rc->param.alt_curve_min_rel_qual = 100; | ||
230 : | } | ||
231 : | } | ||
232 : | rc->alt_curve_mid_qual = (1.0 + (double)rc->param.alt_curve_min_rel_qual / 100.0) / 2.0; | ||
233 : | rc->alt_curve_qual_dev = 1.0 - rc->alt_curve_mid_qual; | ||
234 : | |||
235 : | if (rc->param.alt_curve_low_dist > 100) { | ||
236 : | switch(rc->param.alt_curve_type) { | ||
237 : | case XVID_CURVE_SINE : // Sine Curve (high aggressiveness) | ||
238 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + sin(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff))); | ||
239 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * sin(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff)); | ||
240 : | break; | ||
241 : | case XVID_CURVE_LINEAR : // Linear (medium aggressiveness) | ||
242 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + avg_pvop / rc->alt_curve_low_diff); | ||
243 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * avg_pvop / rc->alt_curve_low_diff; | ||
244 : | break; | ||
245 : | case XVID_CURVE_COSINE : // Cosine Curve (low aggressiveness) | ||
246 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + (1.0 - cos(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff)))); | ||
247 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff))); | ||
248 : | } | ||
249 : | } | ||
250 : | } | ||
251 : | |||
252 : | total1 = 0; | ||
253 : | total2 = 0; | ||
254 : | |||
255 : | for (i=0; i<rc->num_frames; i++) { | ||
256 : | stat_t * s = &rc->stats[i]; | ||
257 : | |||
258 : | if (s->type != XVID_TYPE_IVOP) { | ||
259 : | |||
260 : | double dbytes = s->length / rc->movie_curve; | ||
261 : | double dbytes2; | ||
262 : | total1 += dbytes; | ||
263 : | |||
264 : | if (s->type == XVID_TYPE_BVOP) | ||
265 : | dbytes *= avg_pvop / avg_bvop; | ||
266 : | |||
267 : | if (rc->param.use_alt_curve) { | ||
268 : | if (dbytes > avg_pvop) { | ||
269 : | if (dbytes >= rc->alt_curve_high) { | ||
270 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev); | ||
271 : | }else{ | ||
272 : | switch(rc->param.alt_curve_type){ | ||
273 : | case XVID_CURVE_SINE : | ||
274 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - avg_pvop) * 90.0 / rc->alt_curve_high_diff))); | ||
275 : | break; | ||
276 : | case XVID_CURVE_LINEAR : | ||
277 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - avg_pvop) / rc->alt_curve_high_diff); | ||
278 : | break; | ||
279 : | case XVID_CURVE_COSINE : | ||
280 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - avg_pvop) * 90.0 / rc->alt_curve_high_diff)))); | ||
281 : | } | ||
282 : | } | ||
283 : | }else{ | ||
284 : | if (dbytes <= rc->alt_curve_low){ | ||
285 : | dbytes2 = dbytes; | ||
286 : | }else{ | ||
287 : | switch(rc->param.alt_curve_type){ | ||
288 : | case XVID_CURVE_SINE : | ||
289 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - avg_pvop) * 90.0 / rc->alt_curve_low_diff))); | ||
290 : | break; | ||
291 : | case XVID_CURVE_LINEAR : | ||
292 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - avg_pvop) / rc->alt_curve_low_diff); | ||
293 : | break; | ||
294 : | case XVID_CURVE_COSINE : | ||
295 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual + rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - avg_pvop) * 90.0 / rc->alt_curve_low_diff)))); | ||
296 : | } | ||
297 : | } | ||
298 : | } | ||
299 : | }else{ | ||
300 : | if (dbytes > avg_pvop) { | ||
301 : | dbytes2 = ((double)dbytes + (avg_pvop - dbytes) * | ||
302 : | rc->param.curve_compression_high / 100.0); | ||
303 : | }else{ | ||
304 : | dbytes2 = ((double)dbytes + (avg_pvop - dbytes) * | ||
305 : | rc->param.curve_compression_low / 100.0); | ||
306 : | } | ||
307 : | } | ||
308 : | |||
309 : | if (s->type == XVID_TYPE_BVOP) { | ||
310 : | dbytes2 *= avg_bvop / avg_pvop; | ||
311 : | } | ||
312 : | |||
313 : | if (dbytes2 < rc->min_length[s->type-1]) { | ||
314 : | dbytes = rc->min_length[s->type-1]; | ||
315 : | } | ||
316 : | |||
317 : | total2 += dbytes2; | ||
318 : | } | ||
319 : | } | ||
320 : | |||
321 : | rc->curve_comp_scale = total1 / total2; | ||
322 : | |||
323 : | if (!rc->param.use_alt_curve) { | ||
324 : | printf("middle frame size for asymmetric curve compression: %i", | ||
325 : | (int)(avg_pvop * rc->curve_comp_scale)); | ||
326 : | } | ||
327 : | }*/ | ||
328 : | |||
329 : | |||
330 : | |||
331 : | suxen_drol | 977 | /* open stats file(s) and read into rc->stats array */ |
332 : | suxen_drol | 942 | |
333 : | suxen_drol | 977 | static int load_stats(rc_2pass2_t *rc, char * filename) |
334 : | { | ||
335 : | FILE * f; | ||
336 : | int i, not_scaled; | ||
337 : | |||
338 : | |||
339 : | if ((f = fopen(filename, "rt"))==NULL) | ||
340 : | return 0; | ||
341 : | |||
342 : | i = 0; | ||
343 : | not_scaled = 0; | ||
344 : | while(i < rc->num_frames) { | ||
345 : | stat_t * s = &rc->stats[i]; | ||
346 : | int n; | ||
347 : | char type; | ||
348 : | |||
349 : | s->scaled_length = 0; | ||
350 : | n = fscanf(f, "%c %d %d %d %d %d %d\n", &type, &s->quant, &s->blks[0], &s->blks[1], &s->blks[2], &s->length, &s->scaled_length); | ||
351 : | if (n == EOF) break; | ||
352 : | if (n < 7) { | ||
353 : | not_scaled = 1; | ||
354 : | } | ||
355 : | |||
356 : | if (type == 'i') { | ||
357 : | s->type = XVID_TYPE_IVOP; | ||
358 : | }else if (type == 'p' || type == 's') { | ||
359 : | s->type = XVID_TYPE_PVOP; | ||
360 : | }else if (type == 'b') { | ||
361 : | s->type = XVID_TYPE_BVOP; | ||
362 : | }else{ /* unknown type */ | ||
363 : | printf("unk\n"); | ||
364 : | continue; | ||
365 : | } | ||
366 : | |||
367 : | i++; | ||
368 : | } | ||
369 : | rc->num_frames = i; | ||
370 : | |||
371 : | fclose(f); | ||
372 : | |||
373 : | return 1; | ||
374 : | } | ||
375 : | |||
376 : | |||
377 : | |||
378 : | |||
379 : | |||
380 : | suxen_drol | 942 | static void print_stats(rc_2pass2_t * rc) |
381 : | { | ||
382 : | int i; | ||
383 : | for (i = 0; i < rc->num_frames; i++) { | ||
384 : | stat_t * s = &rc->stats[i]; | ||
385 : | printf("%i %i %i %i\n", s->type, s->quant, s->length, s->scaled_length); | ||
386 : | |||
387 : | } | ||
388 : | } | ||
389 : | |||
390 : | |||
391 : | /* pre-process the statistics data | ||
392 : | this is a clone of vfw/src/2pass.c:codec_2pass_init minus file reading, alt_curve, internal scale | ||
393 : | */ | ||
394 : | |||
395 : | suxen_drol | 977 | void pre_process0(rc_2pass2_t * rc) |
396 : | suxen_drol | 942 | { |
397 : | int i,j; | ||
398 : | |||
399 : | for (i=0; i<3; i++) { | ||
400 : | rc->count[i]=0; | ||
401 : | rc->tot_length[i] = 0; | ||
402 : | rc->last_quant[i] = 0; | ||
403 : | } | ||
404 : | |||
405 : | for (i=0; i<32;i++) { | ||
406 : | rc->pquant_error[i] = 0; | ||
407 : | rc->bquant_error[i] = 0; | ||
408 : | rc->quant_count[i] = 0; | ||
409 : | } | ||
410 : | |||
411 : | for (i=j=0; i<rc->num_frames; i++) { | ||
412 : | stat_t * s = &rc->stats[i]; | ||
413 : | |||
414 : | rc->count[s->type-1]++; | ||
415 : | rc->tot_length[s->type-1] += s->length; | ||
416 : | |||
417 : | if (i == 0 || s->length < rc->min_length[s->type-1]) { | ||
418 : | rc->min_length[s->type-1] = s->length; | ||
419 : | } | ||
420 : | |||
421 : | if (i == 0 || s->length > rc->max_length) { | ||
422 : | rc->max_length = s->length; | ||
423 : | } | ||
424 : | |||
425 : | if (s->type == XVID_TYPE_IVOP) { | ||
426 : | rc->keyframe_locations[j] = i; | ||
427 : | j++; | ||
428 : | } | ||
429 : | } | ||
430 : | rc->keyframe_locations[j] = i; | ||
431 : | suxen_drol | 977 | } |
432 : | suxen_drol | 942 | |
433 : | suxen_drol | 977 | |
434 : | |||
435 : | void pre_process1(rc_2pass2_t * rc) | ||
436 : | { | ||
437 : | int i; | ||
438 : | double total1, total2; | ||
439 : | uint64_t ivop_boost_total; | ||
440 : | |||
441 : | ivop_boost_total = 0; | ||
442 : | rc->curve_comp_error = 0; | ||
443 : | |||
444 : | for (i=0; i<3; i++) { | ||
445 : | rc->tot_scaled_length[i] = 0; | ||
446 : | } | ||
447 : | |||
448 : | for (i=0; i<rc->num_frames; i++) { | ||
449 : | stat_t * s = &rc->stats[i]; | ||
450 : | |||
451 : | rc->tot_scaled_length[s->type-1] += s->scaled_length; | ||
452 : | |||
453 : | if (s->type == XVID_TYPE_IVOP) { | ||
454 : | ivop_boost_total += s->scaled_length * rc->param.keyframe_boost / 100; | ||
455 : | } | ||
456 : | } | ||
457 : | |||
458 : | suxen_drol | 942 | rc->movie_curve = ((double)(rc->tot_scaled_length[XVID_TYPE_PVOP-1] + rc->tot_scaled_length[XVID_TYPE_BVOP-1] + ivop_boost_total) / |
459 : | (rc->tot_scaled_length[XVID_TYPE_PVOP-1] + rc->tot_scaled_length[XVID_TYPE_BVOP-1])); | ||
460 : | |||
461 : | for(i=0; i<3; i++) { | ||
462 : | if (rc->count[i] == 0 || rc->movie_curve == 0) { | ||
463 : | rc->avg_length[i] = 1; | ||
464 : | }else{ | ||
465 : | rc->avg_length[i] = rc->tot_scaled_length[i] / rc->count[i] / rc->movie_curve; | ||
466 : | } | ||
467 : | } | ||
468 : | |||
469 : | /* alt curve stuff here */ | ||
470 : | |||
471 : | if (rc->param.use_alt_curve) { | ||
472 : | const double avg_pvop = rc->avg_length[XVID_TYPE_PVOP-1]; | ||
473 : | const uint64_t tot_pvop = rc->tot_length[XVID_TYPE_PVOP-1]; | ||
474 : | const uint64_t tot_bvop = rc->tot_length[XVID_TYPE_BVOP-1]; | ||
475 : | const uint64_t tot_scaled_pvop = rc->tot_scaled_length[XVID_TYPE_PVOP-1]; | ||
476 : | const uint64_t tot_scaled_bvop = rc->tot_scaled_length[XVID_TYPE_BVOP-1]; | ||
477 : | |||
478 : | rc->alt_curve_low = avg_pvop - avg_pvop * (double)rc->param.alt_curve_low_dist / 100.0; | ||
479 : | rc->alt_curve_low_diff = avg_pvop - rc->alt_curve_low; | ||
480 : | rc->alt_curve_high = avg_pvop + avg_pvop * (double)rc->param.alt_curve_high_dist / 100.0; | ||
481 : | rc->alt_curve_high_diff = rc->alt_curve_high - avg_pvop; | ||
482 : | |||
483 : | if (rc->param.alt_curve_use_auto) { | ||
484 : | if (tot_bvop + tot_pvop > tot_scaled_bvop + tot_scaled_pvop) { | ||
485 : | rc->param.alt_curve_min_rel_qual = (int)(100.0 - (100.0 - 100.0 / | ||
486 : | ((double)(tot_pvop + tot_bvop) / (double)(tot_scaled_pvop + tot_scaled_bvop))) * (double)rc->param.alt_curve_auto_str / 100.0); | ||
487 : | |||
488 : | if (rc->param.alt_curve_min_rel_qual < 20) | ||
489 : | rc->param.alt_curve_min_rel_qual = 20; | ||
490 : | }else{ | ||
491 : | rc->param.alt_curve_min_rel_qual = 100; | ||
492 : | } | ||
493 : | } | ||
494 : | rc->alt_curve_mid_qual = (1.0 + (double)rc->param.alt_curve_min_rel_qual / 100.0) / 2.0; | ||
495 : | rc->alt_curve_qual_dev = 1.0 - rc->alt_curve_mid_qual; | ||
496 : | |||
497 : | if (rc->param.alt_curve_low_dist > 100) { | ||
498 : | switch(rc->param.alt_curve_type) { | ||
499 : | case XVID_CURVE_SINE: // Sine Curve (high aggressiveness) | ||
500 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + sin(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff))); | ||
501 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * sin(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff)); | ||
502 : | break; | ||
503 : | case XVID_CURVE_LINEAR: // Linear (medium aggressiveness) | ||
504 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + avg_pvop / rc->alt_curve_low_diff); | ||
505 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * avg_pvop / rc->alt_curve_low_diff; | ||
506 : | break; | ||
507 : | case XVID_CURVE_COSINE: // Cosine Curve (low aggressiveness) | ||
508 : | rc->alt_curve_qual_dev *= 2.0 / (1.0 + (1.0 - cos(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff)))); | ||
509 : | rc->alt_curve_mid_qual = 1.0 - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * (avg_pvop * 90.0 / rc->alt_curve_low_diff))); | ||
510 : | } | ||
511 : | } | ||
512 : | } | ||
513 : | /* --- */ | ||
514 : | |||
515 : | |||
516 : | total1=total2=0; | ||
517 : | suxen_drol | 977 | for (i=0; i<rc->num_frames; i++) { |
518 : | suxen_drol | 942 | stat_t * s = &rc->stats[i]; |
519 : | |||
520 : | if (s->type != XVID_TYPE_IVOP) { | ||
521 : | double dbytes,dbytes2; | ||
522 : | |||
523 : | dbytes = s->scaled_length / rc->movie_curve; | ||
524 : | dbytes2 = 0; /* XXX: warning */ | ||
525 : | total1 += dbytes; | ||
526 : | if (s->type == XVID_TYPE_BVOP) | ||
527 : | dbytes *= rc->avg_length[XVID_TYPE_PVOP-1] / rc->avg_length[XVID_TYPE_BVOP-1]; | ||
528 : | |||
529 : | if (rc->param.use_alt_curve) { | ||
530 : | if (dbytes > rc->avg_length[XVID_TYPE_PVOP-1]) { | ||
531 : | |||
532 : | if (dbytes >= rc->alt_curve_high) { | ||
533 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev); | ||
534 : | }else{ | ||
535 : | switch(rc->param.alt_curve_type) { | ||
536 : | case XVID_CURVE_SINE : | ||
537 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff))); | ||
538 : | break; | ||
539 : | case XVID_CURVE_LINEAR : | ||
540 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_high_diff); | ||
541 : | break; | ||
542 : | case XVID_CURVE_COSINE : | ||
543 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff)))); | ||
544 : | } | ||
545 : | } | ||
546 : | }else{ | ||
547 : | if (dbytes <= rc->alt_curve_low) { | ||
548 : | dbytes2 = dbytes; | ||
549 : | }else{ | ||
550 : | switch(rc->param.alt_curve_type) { | ||
551 : | case XVID_CURVE_SINE : | ||
552 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff))); | ||
553 : | break; | ||
554 : | case XVID_CURVE_LINEAR : | ||
555 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_low_diff); | ||
556 : | break; | ||
557 : | case XVID_CURVE_COSINE : | ||
558 : | dbytes2 = dbytes * (rc->alt_curve_mid_qual + rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff)))); | ||
559 : | } | ||
560 : | } | ||
561 : | |||
562 : | } | ||
563 : | |||
564 : | |||
565 : | }else{ | ||
566 : | if (dbytes > rc->avg_length[XVID_TYPE_PVOP-1]) { | ||
567 : | dbytes2=((double)dbytes + (rc->avg_length[XVID_TYPE_PVOP-1] - dbytes) * rc->param.curve_compression_high / 100.0); | ||
568 : | }else{ | ||
569 : | dbytes2 = ((double)dbytes + (rc->avg_length[XVID_TYPE_PVOP-1] - dbytes) * rc->param.curve_compression_low / 100.0); | ||
570 : | } | ||
571 : | } | ||
572 : | |||
573 : | if (s->type == XVID_TYPE_BVOP) { | ||
574 : | dbytes2 *= rc->avg_length[XVID_TYPE_BVOP-1] / rc->avg_length[XVID_TYPE_PVOP-1]; | ||
575 : | if (dbytes2 < rc->min_length[XVID_TYPE_BVOP-1]) | ||
576 : | dbytes2 = rc->min_length[XVID_TYPE_BVOP-1]; | ||
577 : | }else{ | ||
578 : | if (dbytes2 < rc->min_length[XVID_TYPE_PVOP-1]) | ||
579 : | dbytes2 = rc->min_length[XVID_TYPE_PVOP-1]; | ||
580 : | } | ||
581 : | total2 += dbytes2; | ||
582 : | } | ||
583 : | } | ||
584 : | |||
585 : | rc->curve_comp_scale = total1 / total2; | ||
586 : | |||
587 : | if (!rc->param.use_alt_curve) { | ||
588 : | printf("middle frame size for asymmetric curve compression: %i\n", | ||
589 : | (int)(rc->avg_length[XVID_TYPE_PVOP-1] * rc->curve_comp_scale)); | ||
590 : | } | ||
591 : | |||
592 : | if (rc->param.use_alt_curve) { | ||
593 : | int bonus_bias = rc->param.alt_curve_bonus_bias; | ||
594 : | int oldquant = 1; | ||
595 : | |||
596 : | if (rc->param.alt_curve_use_auto_bonus_bias) | ||
597 : | bonus_bias = rc->param.alt_curve_min_rel_qual; | ||
598 : | |||
599 : | rc->alt_curve_curve_bias_bonus = (total1 - total2) * (double)bonus_bias / 100.0 / (double)(rc->num_frames /* - credits_frames */ - rc->num_keyframes); | ||
600 : | rc->curve_comp_scale = ((total1 - total2) * (1.0 - (double)bonus_bias / 100.0) + total2) / total2; | ||
601 : | |||
602 : | |||
603 : | /* special info for alt curve: bias bonus and quantizer thresholds */ | ||
604 : | |||
605 : | printf("avg scaled framesize:%i", (int)rc->avg_length[XVID_TYPE_PVOP-1]); | ||
606 : | printf("bias bonus:%i bytes", (int)rc->alt_curve_curve_bias_bonus); | ||
607 : | |||
608 : | for (i=1; i <= (int)(rc->alt_curve_high*2)+1; i++) { | ||
609 : | double curve_temp, dbytes; | ||
610 : | int newquant; | ||
611 : | |||
612 : | dbytes = i; | ||
613 : | if (dbytes > rc->avg_length[XVID_TYPE_PVOP-1]) { | ||
614 : | if (dbytes >= rc->alt_curve_high) { | ||
615 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev); | ||
616 : | }else{ | ||
617 : | switch(rc->param.alt_curve_type) | ||
618 : | { | ||
619 : | case XVID_CURVE_SINE : | ||
620 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff))); | ||
621 : | break; | ||
622 : | case XVID_CURVE_LINEAR : | ||
623 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_high_diff); | ||
624 : | break; | ||
625 : | case XVID_CURVE_COSINE : | ||
626 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff)))); | ||
627 : | } | ||
628 : | } | ||
629 : | }else{ | ||
630 : | if (dbytes <= rc->alt_curve_low) { | ||
631 : | curve_temp = dbytes; | ||
632 : | }else{ | ||
633 : | switch(rc->param.alt_curve_type) | ||
634 : | { | ||
635 : | case XVID_CURVE_SINE : | ||
636 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff))); | ||
637 : | break; | ||
638 : | case XVID_CURVE_LINEAR : | ||
639 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_low_diff); | ||
640 : | break; | ||
641 : | case XVID_CURVE_COSINE : | ||
642 : | curve_temp = dbytes * (rc->alt_curve_mid_qual + rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff)))); | ||
643 : | } | ||
644 : | } | ||
645 : | } | ||
646 : | |||
647 : | if (rc->movie_curve > 1.0) | ||
648 : | dbytes *= rc->movie_curve; | ||
649 : | |||
650 : | newquant = (int)(dbytes * 2.0 / (curve_temp * rc->curve_comp_scale + rc->alt_curve_curve_bias_bonus)); | ||
651 : | if (newquant > 1) { | ||
652 : | if (newquant != oldquant) { | ||
653 : | int percent = (int)((i - rc->avg_length[XVID_TYPE_PVOP-1]) * 100.0 / rc->avg_length[XVID_TYPE_PVOP-1]); | ||
654 : | oldquant = newquant; | ||
655 : | printf("quant:%i threshold at %i : %i percent", newquant, i, percent); | ||
656 : | } | ||
657 : | } | ||
658 : | } | ||
659 : | |||
660 : | } | ||
661 : | |||
662 : | rc->overflow = 0; | ||
663 : | rc->KFoverflow = 0; | ||
664 : | rc->KFoverflow_partial = 0; | ||
665 : | rc->KF_idx = 1; | ||
666 : | } | ||
667 : | |||
668 : | |||
669 : | |||
670 : | |||
671 : | static int rc_2pass2_create(xvid_plg_create_t * create, rc_2pass2_t ** handle) | ||
672 : | { | ||
673 : | xvid_plugin_2pass2_t * param = (xvid_plugin_2pass2_t *)create->param; | ||
674 : | rc_2pass2_t * rc; | ||
675 : | |||
676 : | rc = malloc(sizeof(rc_2pass2_t)); | ||
677 : | if (rc == NULL) | ||
678 : | return XVID_ERR_MEMORY; | ||
679 : | |||
680 : | rc->param = *param; | ||
681 : | |||
682 : | if (rc->param.keyframe_boost <= 0) rc->param.keyframe_boost = 0; | ||
683 : | if (rc->param.payback_method <= 0) rc->param.payback_method = XVID_PAYBACK_PROP; | ||
684 : | if (rc->param.bitrate_payback_delay <= 0) rc->param.bitrate_payback_delay = 250; | ||
685 : | if (rc->param.curve_compression_high <= 0) rc->param.curve_compression_high = 0; | ||
686 : | if (rc->param.curve_compression_low <= 0) rc->param.curve_compression_low = 0; | ||
687 : | if (rc->param.max_overflow_improvement <= 0) rc->param.max_overflow_improvement = 60; | ||
688 : | if (rc->param.max_overflow_degradation <= 0) rc->param.max_overflow_degradation = 60; | ||
689 : | |||
690 : | if (rc->param.use_alt_curve <= 0) rc->param.use_alt_curve = 0; | ||
691 : | if (rc->param.alt_curve_high_dist <= 0) rc->param.alt_curve_high_dist = 500; | ||
692 : | if (rc->param.alt_curve_low_dist <= 0) rc->param.alt_curve_low_dist = 90; | ||
693 : | if (rc->param.alt_curve_use_auto <= 0) rc->param.alt_curve_use_auto = 1; | ||
694 : | if (rc->param.alt_curve_auto_str <= 0) rc->param.alt_curve_auto_str = 30; | ||
695 : | if (rc->param.alt_curve_type <= 0) rc->param.alt_curve_type = XVID_CURVE_LINEAR; | ||
696 : | if (rc->param.alt_curve_min_rel_qual <= 0) rc->param.alt_curve_min_rel_qual = 50; | ||
697 : | if (rc->param.alt_curve_use_auto_bonus_bias <= 0) rc->param.alt_curve_use_auto_bonus_bias = 1; | ||
698 : | if (rc->param.alt_curve_bonus_bias <= 0) rc->param.alt_curve_bonus_bias = 50; | ||
699 : | |||
700 : | if (rc->param.kftreshold <= 0) rc->param.kftreshold = 10; | ||
701 : | if (rc->param.kfreduction <= 0) rc->param.kfreduction = 20; | ||
702 : | if (rc->param.min_key_interval <= 0) rc->param.min_key_interval = 300; | ||
703 : | |||
704 : | suxen_drol | 977 | if (!det_stats_length(rc, param->filename)){ |
705 : | DPRINTF(DPRINTF_RC,"fopen %s failed\n", param->filename); | ||
706 : | suxen_drol | 942 | free(rc); |
707 : | return XVID_ERR_FAIL; | ||
708 : | } | ||
709 : | |||
710 : | if ((rc->stats = malloc(rc->num_frames * sizeof(stat_t))) == NULL) { | ||
711 : | free(rc); | ||
712 : | return XVID_ERR_MEMORY; | ||
713 : | } | ||
714 : | |||
715 : | /* XXX: do we need an addition location */ | ||
716 : | if ((rc->keyframe_locations = malloc((rc->num_keyframes + 1) * sizeof(int))) == NULL) { | ||
717 : | free(rc->stats); | ||
718 : | free(rc); | ||
719 : | return XVID_ERR_MEMORY; | ||
720 : | } | ||
721 : | |||
722 : | suxen_drol | 977 | if (!load_stats(rc, param->filename)) { |
723 : | DPRINTF(DPRINTF_RC,"fopen %s failed\n", param->filename); | ||
724 : | suxen_drol | 942 | free(rc->keyframe_locations); |
725 : | free(rc->stats); | ||
726 : | free(rc); | ||
727 : | return XVID_ERR_FAIL; | ||
728 : | } | ||
729 : | |||
730 : | /* pre-process our stats */ | ||
731 : | suxen_drol | 977 | |
732 : | { | ||
733 : | if (rc->num_frames < create->fbase/create->fincr) { | ||
734 : | rc->target = rc->param.bitrate / 8; /* one second */ | ||
735 : | }else{ | ||
736 : | rc->target = (rc->param.bitrate * rc->num_frames * create->fincr) / (create->fbase * 8); | ||
737 : | } | ||
738 : | |||
739 : | |||
740 : | rc->target -= rc->num_frames*24; /* avi file header */ | ||
741 : | |||
742 : | } | ||
743 : | suxen_drol | 942 | |
744 : | suxen_drol | 977 | |
745 : | pre_process0(rc); | ||
746 : | if (rc->param.bitrate) { | ||
747 : | internal_scale(rc); | ||
748 : | } | ||
749 : | pre_process1(rc);pre_process1(rc);pre_process1(rc); | ||
750 : | |||
751 : | suxen_drol | 942 | *handle = rc; |
752 : | return(0); | ||
753 : | } | ||
754 : | |||
755 : | |||
756 : | static int rc_2pass2_destroy(rc_2pass2_t * rc, xvid_plg_destroy_t * destroy) | ||
757 : | { | ||
758 : | free(rc->keyframe_locations); | ||
759 : | free(rc->stats); | ||
760 : | free(rc); | ||
761 : | return(0); | ||
762 : | } | ||
763 : | |||
764 : | |||
765 : | |||
766 : | static int rc_2pass2_before(rc_2pass2_t * rc, xvid_plg_data_t * data) | ||
767 : | { | ||
768 : | stat_t * s = &rc->stats[data->frame_num]; | ||
769 : | int overflow; | ||
770 : | int desired; | ||
771 : | double dbytes; | ||
772 : | double curve_temp; | ||
773 : | int capped_to_max_framesize = 0; | ||
774 : | |||
775 : | if (data->frame_num >= rc->num_frames) { | ||
776 : | /* insufficent stats data */ | ||
777 : | return 0; | ||
778 : | } | ||
779 : | |||
780 : | overflow = rc->overflow / 8; /* XXX: why by 8 */ | ||
781 : | |||
782 : | if (s->type == XVID_TYPE_IVOP) { /* XXX: why */ | ||
783 : | overflow = 0; | ||
784 : | } | ||
785 : | |||
786 : | desired = s->scaled_length; | ||
787 : | |||
788 : | dbytes = desired; | ||
789 : | if (s->type == XVID_TYPE_IVOP) { | ||
790 : | dbytes += desired * rc->param.keyframe_boost / 100; | ||
791 : | } | ||
792 : | dbytes /= rc->movie_curve; | ||
793 : | suxen_drol | 977 | |
794 : | suxen_drol | 942 | if (s->type == XVID_TYPE_BVOP) { |
795 : | dbytes *= rc->avg_length[XVID_TYPE_PVOP-1] / rc->avg_length[XVID_TYPE_BVOP-1]; | ||
796 : | } | ||
797 : | |||
798 : | if (rc->param.payback_method == XVID_PAYBACK_BIAS) { | ||
799 : | desired =(int)(rc->curve_comp_error / rc->param.bitrate_payback_delay); | ||
800 : | }else{ | ||
801 : | suxen_drol | 977 | //printf("desired=%i, dbytes=%i\n", desired,dbytes); |
802 : | suxen_drol | 942 | desired = (int)(rc->curve_comp_error * dbytes / |
803 : | rc->avg_length[XVID_TYPE_PVOP-1] / rc->param.bitrate_payback_delay); | ||
804 : | suxen_drol | 977 | //printf("desired=%i\n", desired); |
805 : | suxen_drol | 942 | |
806 : | if (labs(desired) > fabs(rc->curve_comp_error)) { | ||
807 : | desired = (int)rc->curve_comp_error; | ||
808 : | } | ||
809 : | } | ||
810 : | |||
811 : | rc->curve_comp_error -= desired; | ||
812 : | |||
813 : | /* alt curve */ | ||
814 : | |||
815 : | curve_temp = 0; /* XXX: warning */ | ||
816 : | |||
817 : | if (rc->param.use_alt_curve) { | ||
818 : | if (s->type != XVID_TYPE_IVOP) { | ||
819 : | if (dbytes > rc->avg_length[XVID_TYPE_PVOP-1]) { | ||
820 : | if (dbytes >= rc->alt_curve_high) { | ||
821 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev); | ||
822 : | }else{ | ||
823 : | switch(rc->param.alt_curve_type) { | ||
824 : | case XVID_CURVE_SINE : | ||
825 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff))); | ||
826 : | break; | ||
827 : | case XVID_CURVE_LINEAR : | ||
828 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_high_diff); | ||
829 : | break; | ||
830 : | case XVID_CURVE_COSINE : | ||
831 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_high_diff)))); | ||
832 : | } | ||
833 : | } | ||
834 : | }else{ | ||
835 : | if (dbytes <= rc->alt_curve_low){ | ||
836 : | curve_temp = dbytes; | ||
837 : | }else{ | ||
838 : | switch(rc->param.alt_curve_type) { | ||
839 : | case XVID_CURVE_SINE : | ||
840 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * sin(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff))); | ||
841 : | break; | ||
842 : | case XVID_CURVE_LINEAR : | ||
843 : | curve_temp = dbytes * (rc->alt_curve_mid_qual - rc->alt_curve_qual_dev * (dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) / rc->alt_curve_low_diff); | ||
844 : | break; | ||
845 : | case XVID_CURVE_COSINE : | ||
846 : | curve_temp = dbytes * (rc->alt_curve_mid_qual + rc->alt_curve_qual_dev * (1.0 - cos(DEG2RAD * ((dbytes - rc->avg_length[XVID_TYPE_PVOP-1]) * 90.0 / rc->alt_curve_low_diff)))); | ||
847 : | } | ||
848 : | } | ||
849 : | } | ||
850 : | if (s->type == XVID_TYPE_BVOP) | ||
851 : | curve_temp *= rc->avg_length[XVID_TYPE_BVOP-1] / rc->avg_length[XVID_TYPE_PVOP-1]; | ||
852 : | |||
853 : | curve_temp = curve_temp * rc->curve_comp_scale + rc->alt_curve_curve_bias_bonus; | ||
854 : | |||
855 : | desired += ((int)curve_temp); | ||
856 : | rc->curve_comp_error += curve_temp - (int)curve_temp; | ||
857 : | }else{ | ||
858 : | if (s->type == XVID_TYPE_BVOP) | ||
859 : | dbytes *= rc->avg_length[XVID_TYPE_BVOP-1] / rc->avg_length[XVID_TYPE_PVOP-1]; | ||
860 : | |||
861 : | desired += ((int)dbytes); | ||
862 : | rc->curve_comp_error += dbytes - (int)dbytes; | ||
863 : | } | ||
864 : | |||
865 : | }else if ((rc->param.curve_compression_high + rc->param.curve_compression_low) && s->type != XVID_TYPE_IVOP) { | ||
866 : | |||
867 : | curve_temp = rc->curve_comp_scale; | ||
868 : | if (dbytes > rc->avg_length[XVID_TYPE_PVOP-1]) { | ||
869 : | curve_temp *= ((double)dbytes + (rc->avg_length[XVID_TYPE_PVOP-1] - dbytes) * rc->param.curve_compression_high / 100.0); | ||
870 : | } else { | ||
871 : | curve_temp *= ((double)dbytes + (rc->avg_length[XVID_TYPE_PVOP-1] - dbytes) * rc->param.curve_compression_low / 100.0); | ||
872 : | } | ||
873 : | |||
874 : | if (s->type == XVID_TYPE_BVOP){ | ||
875 : | curve_temp *= rc->avg_length[XVID_TYPE_BVOP-1] / rc->avg_length[XVID_TYPE_PVOP-1]; | ||
876 : | } | ||
877 : | |||
878 : | desired += (int)curve_temp; | ||
879 : | rc->curve_comp_error += curve_temp - (int)curve_temp; | ||
880 : | }else{ | ||
881 : | if (s->type == XVID_TYPE_BVOP){ | ||
882 : | dbytes *= rc->avg_length[XVID_TYPE_BVOP-1] / rc->avg_length[XVID_TYPE_PVOP-1]; | ||
883 : | } | ||
884 : | |||
885 : | desired += (int)dbytes; | ||
886 : | rc->curve_comp_error += dbytes - (int)dbytes; | ||
887 : | } | ||
888 : | |||
889 : | if (desired > s->length){ | ||
890 : | rc->curve_comp_error += desired - s->length; | ||
891 : | desired = s->length; | ||
892 : | }else{ | ||
893 : | if (desired < rc->min_length[s->type-1]) { | ||
894 : | if (s->type == XVID_TYPE_IVOP){ | ||
895 : | rc->curve_comp_error -= rc->min_length[XVID_TYPE_IVOP-1] - desired; | ||
896 : | } | ||
897 : | desired = rc->min_length[s->type-1]; | ||
898 : | } | ||
899 : | } | ||
900 : | |||
901 : | s->desired_length = desired; | ||
902 : | |||
903 : | |||
904 : | /* if this keyframe is too close to the next, reduce it's byte allotment | ||
905 : | XXX: why do we do this after setting the desired length */ | ||
906 : | |||
907 : | if (s->type == XVID_TYPE_IVOP) { | ||
908 : | int KFdistance = rc->keyframe_locations[rc->KF_idx] - rc->keyframe_locations[rc->KF_idx - 1]; | ||
909 : | |||
910 : | if (KFdistance < rc->param.kftreshold) { | ||
911 : | |||
912 : | KFdistance = KFdistance - rc->param.min_key_interval; | ||
913 : | |||
914 : | if (KFdistance >= 0) { | ||
915 : | int KF_min_size; | ||
916 : | |||
917 : | KF_min_size = desired * (100 - rc->param.kfreduction) / 100; | ||
918 : | if (KF_min_size < 1) | ||
919 : | KF_min_size = 1; | ||
920 : | |||
921 : | desired = KF_min_size + (desired - KF_min_size) * KFdistance / | ||
922 : | (rc->param.kftreshold - rc->param.min_key_interval); | ||
923 : | |||
924 : | if (desired < 1) | ||
925 : | desired = 1; | ||
926 : | } | ||
927 : | } | ||
928 : | } | ||
929 : | |||
930 : | overflow = (int)((double)overflow * desired / rc->avg_length[XVID_TYPE_PVOP-1]); | ||
931 : | |||
932 : | // Foxer: reign in overflow with huge frames | ||
933 : | if (labs(overflow) > labs(rc->overflow)) { | ||
934 : | overflow = rc->overflow; | ||
935 : | } | ||
936 : | |||
937 : | // Foxer: make sure overflow doesn't run away | ||
938 : | |||
939 : | if (overflow > desired * rc->param.max_overflow_improvement / 100) { | ||
940 : | desired += (overflow <= desired) ? desired * rc->param.max_overflow_improvement / 100 : | ||
941 : | overflow * rc->param.max_overflow_improvement / 100; | ||
942 : | }else if (overflow < desired * rc->param.max_overflow_degradation / -100){ | ||
943 : | desired += desired * rc->param.max_overflow_degradation / -100; | ||
944 : | }else{ | ||
945 : | desired += overflow; | ||
946 : | } | ||
947 : | |||
948 : | if (desired > rc->max_length) { | ||
949 : | capped_to_max_framesize = 1; | ||
950 : | desired = rc->max_length; | ||
951 : | } | ||
952 : | |||
953 : | // make sure to not scale below the minimum framesize | ||
954 : | if (desired < rc->min_length[s->type-1]) { | ||
955 : | desired = rc->min_length[s->type-1]; | ||
956 : | } | ||
957 : | |||
958 : | |||
959 : | // very 'simple' quant<->filesize relationship | ||
960 : | data->quant= (s->quant * s->length) / desired; | ||
961 : | |||
962 : | if (data->quant < 1) { | ||
963 : | data->quant = 1; | ||
964 : | } else if (data->quant > 31) { | ||
965 : | data->quant = 31; | ||
966 : | } | ||
967 : | else if (s->type != XVID_TYPE_IVOP) | ||
968 : | { | ||
969 : | // Foxer: aid desired quantizer precision by accumulating decision error | ||
970 : | if (s->type== XVID_TYPE_BVOP) { | ||
971 : | rc->bquant_error[data->quant] += ((double)(s->quant * s->length) / desired) - data->quant; | ||
972 : | |||
973 : | if (rc->bquant_error[data->quant] >= 1.0) { | ||
974 : | rc->bquant_error[data->quant] -= 1.0; | ||
975 : | data->quant++; | ||
976 : | } | ||
977 : | }else{ | ||
978 : | rc->pquant_error[data->quant] += ((double)(s->quant * s->length) / desired) - data->quant; | ||
979 : | |||
980 : | if (rc->pquant_error[data->quant] >= 1.0) { | ||
981 : | rc->pquant_error[data->quant] -= 1.0; | ||
982 : | ++data->quant; | ||
983 : | } | ||
984 : | } | ||
985 : | } | ||
986 : | |||
987 : | /* cap to min/max quant */ | ||
988 : | |||
989 : | suxen_drol | 1014 | if (data->quant < data->min_quant[s->type-1]) { |
990 : | data->quant = data->min_quant[s->type-1]; | ||
991 : | }else if (data->quant > data->max_quant[s->type-1]) { | ||
992 : | data->quant = data->max_quant[s->type-1]; | ||
993 : | suxen_drol | 942 | } |
994 : | |||
995 : | /* subsequent p/b frame quants can only be +- 2 */ | ||
996 : | if (s->type != XVID_TYPE_IVOP && rc->last_quant[s->type-1] && capped_to_max_framesize == 0) { | ||
997 : | |||
998 : | if (data->quant > rc->last_quant[s->type-1] + 2) { | ||
999 : | data->quant = rc->last_quant[s->type-1] + 2; | ||
1000 : | DPRINTF(DPRINTF_RC, "p/b-frame quantizer prevented from rising too steeply"); | ||
1001 : | } | ||
1002 : | if (data->quant < rc->last_quant[s->type-1] - 2) { | ||
1003 : | data->quant = rc->last_quant[s->type-1] - 2; | ||
1004 : | DPRINTF(DPRINTF_RC, "p/b-frame quantizer prevented from falling too steeply"); | ||
1005 : | } | ||
1006 : | } | ||
1007 : | |||
1008 : | if (capped_to_max_framesize == 0) { | ||
1009 : | rc->last_quant[s->type-1] = data->quant; | ||
1010 : | } | ||
1011 : | |||
1012 : | return 0; | ||
1013 : | } | ||
1014 : | |||
1015 : | |||
1016 : | |||
1017 : | static int rc_2pass2_after(rc_2pass2_t * rc, xvid_plg_data_t * data) | ||
1018 : | { | ||
1019 : | stat_t * s = &rc->stats[data->frame_num]; | ||
1020 : | |||
1021 : | if (data->frame_num >= rc->num_frames) { | ||
1022 : | /* insufficent stats data */ | ||
1023 : | return 0; | ||
1024 : | } | ||
1025 : | |||
1026 : | rc->quant_count[data->quant]++; | ||
1027 : | |||
1028 : | if (data->type == XVID_TYPE_IVOP) { | ||
1029 : | int kfdiff = (rc->keyframe_locations[rc->KF_idx] - rc->keyframe_locations[rc->KF_idx - 1]); | ||
1030 : | |||
1031 : | rc->overflow += rc->KFoverflow; | ||
1032 : | rc->KFoverflow = s->desired_length - data->length; | ||
1033 : | |||
1034 : | if (kfdiff > 1) { // non-consecutive keyframes | ||
1035 : | rc->KFoverflow_partial = rc->KFoverflow / (kfdiff - 1); | ||
1036 : | }else{ // consecutive keyframes | ||
1037 : | rc->overflow += rc->KFoverflow; | ||
1038 : | rc->KFoverflow = 0; | ||
1039 : | rc->KFoverflow_partial = 0; | ||
1040 : | } | ||
1041 : | rc->KF_idx++; | ||
1042 : | }else{ | ||
1043 : | // distribute part of the keyframe overflow | ||
1044 : | rc->overflow += s->desired_length - data->length + rc->KFoverflow_partial; | ||
1045 : | rc->KFoverflow -= rc->KFoverflow_partial; | ||
1046 : | } | ||
1047 : | |||
1048 : | printf("[%i] quant:%i stats1:%i scaled:%i actual:%i overflow:%i\n", | ||
1049 : | data->frame_num, | ||
1050 : | data->quant, | ||
1051 : | s->length, | ||
1052 : | s->scaled_length, | ||
1053 : | data->length, | ||
1054 : | rc->overflow); | ||
1055 : | |||
1056 : | return(0); | ||
1057 : | } | ||
1058 : | |||
1059 : | |||
1060 : | |||
1061 : | int xvid_plugin_2pass2(void * handle, int opt, void * param1, void * param2) | ||
1062 : | { | ||
1063 : | switch(opt) | ||
1064 : | { | ||
1065 : | case XVID_PLG_INFO : | ||
1066 : | return 0; | ||
1067 : | |||
1068 : | case XVID_PLG_CREATE : | ||
1069 : | return rc_2pass2_create((xvid_plg_create_t*)param1, param2); | ||
1070 : | |||
1071 : | case XVID_PLG_DESTROY : | ||
1072 : | return rc_2pass2_destroy((rc_2pass2_t*)handle, (xvid_plg_destroy_t*)param1); | ||
1073 : | |||
1074 : | case XVID_PLG_BEFORE : | ||
1075 : | return rc_2pass2_before((rc_2pass2_t*)handle, (xvid_plg_data_t*)param1); | ||
1076 : | |||
1077 : | case XVID_PLG_AFTER : | ||
1078 : | return rc_2pass2_after((rc_2pass2_t*)handle, (xvid_plg_data_t*)param1); | ||
1079 : | } | ||
1080 : | |||
1081 : | return XVID_ERR_FAIL; | ||
1082 : | } |
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