23 |
* |
* |
24 |
* History: |
* History: |
25 |
* |
* |
26 |
|
* 17.04.2002 changed 1st pass quant to always be 2 (2pass_update()) |
27 |
|
* 07.04.2002 added max bitrate constraint, overflow controls (foxer) |
28 |
* 31.03.2002 inital version; |
* 31.03.2002 inital version; |
29 |
* |
* |
30 |
*************************************************************************/ |
*************************************************************************/ |
47 |
|
|
48 |
double total1 = 0.0; |
double total1 = 0.0; |
49 |
double total2 = 0.0; |
double total2 = 0.0; |
50 |
|
double dbytes, dbytes2; |
51 |
|
|
52 |
if (codec->config.hinted_me) |
if (codec->config.hinted_me) |
53 |
{ |
{ |
162 |
{ |
{ |
163 |
if (twopass->nns1.quant & NNSTATS_KEYFRAME) |
if (twopass->nns1.quant & NNSTATS_KEYFRAME) |
164 |
{ |
{ |
165 |
i_boost_total = twopass->nns2.bytes * codec->config.keyframe_boost / 100; |
i_boost_total += twopass->nns2.bytes * codec->config.keyframe_boost / 100; |
166 |
i_total += twopass->nns2.bytes; |
i_total += twopass->nns2.bytes; |
167 |
|
twopass->keyframe_locations[i_frames] = frames; |
168 |
++i_frames; |
++i_frames; |
169 |
} |
} |
170 |
|
|
176 |
|
|
177 |
++frames; |
++frames; |
178 |
} |
} |
179 |
|
twopass->keyframe_locations[i_frames] = frames; |
180 |
|
|
181 |
twopass->movie_curve = ((double)(total_ext + i_boost_total) / total_ext); |
twopass->movie_curve = ((double)(total_ext + i_boost_total) / total_ext); |
182 |
twopass->average_frame = ((double)(total_ext - i_total) / (frames - credits_frames - i_frames) / twopass->movie_curve); |
twopass->average_frame = ((double)(total_ext - i_total) / (frames - credits_frames - i_frames) / twopass->movie_curve); |
253 |
} |
} |
254 |
} |
} |
255 |
|
|
256 |
|
if (frames == 0) |
257 |
|
{ |
258 |
|
twopass->minpsize = (twopass->nns1.kblk + 88) / 8; |
259 |
|
twopass->minisize = ((twopass->nns1.kblk * 22) + 240) / 8; |
260 |
|
} |
261 |
|
|
262 |
if (!codec_is_in_credits(&codec->config, frames) && |
if (!codec_is_in_credits(&codec->config, frames) && |
263 |
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
264 |
{ |
{ |
265 |
double dbytes = twopass->nns2.bytes / twopass->movie_curve; |
dbytes = twopass->nns2.bytes / twopass->movie_curve; |
266 |
total1 += dbytes; |
total1 += dbytes; |
267 |
|
|
268 |
if (codec->config.use_alt_curve) |
if (codec->config.use_alt_curve) |
270 |
if (dbytes > twopass->average_frame) |
if (dbytes > twopass->average_frame) |
271 |
{ |
{ |
272 |
if (dbytes >= twopass->alt_curve_high) |
if (dbytes >= twopass->alt_curve_high) |
273 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
274 |
else |
else |
275 |
{ |
{ |
276 |
switch(codec->config.alt_curve_type) |
switch(codec->config.alt_curve_type) |
277 |
{ |
{ |
278 |
case 2: |
case 2: |
279 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
280 |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
281 |
break; |
break; |
282 |
case 1: |
case 1: |
283 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
284 |
(dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
(dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
285 |
break; |
break; |
286 |
case 0: |
case 0: |
287 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
288 |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
289 |
} |
} |
290 |
} |
} |
292 |
else |
else |
293 |
{ |
{ |
294 |
if (dbytes <= twopass->alt_curve_low) |
if (dbytes <= twopass->alt_curve_low) |
295 |
total2 += dbytes; |
dbytes2 = dbytes; |
296 |
else |
else |
297 |
{ |
{ |
298 |
switch(codec->config.alt_curve_type) |
switch(codec->config.alt_curve_type) |
299 |
{ |
{ |
300 |
case 2: |
case 2: |
301 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
302 |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
303 |
break; |
break; |
304 |
case 1: |
case 1: |
305 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
306 |
(dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
(dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
307 |
break; |
break; |
308 |
case 0: |
case 0: |
309 |
total2 += dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
310 |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
311 |
} |
} |
312 |
} |
} |
316 |
{ |
{ |
317 |
if (dbytes > twopass->average_frame) |
if (dbytes > twopass->average_frame) |
318 |
{ |
{ |
319 |
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
320 |
codec->config.curve_compression_high / 100.0); |
codec->config.curve_compression_high / 100.0); |
321 |
} |
} |
322 |
else |
else |
323 |
{ |
{ |
324 |
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
325 |
codec->config.curve_compression_low / 100.0); |
codec->config.curve_compression_low / 100.0); |
326 |
} |
} |
327 |
} |
} |
328 |
|
|
329 |
|
if (dbytes2 < twopass->minpsize) |
330 |
|
dbytes2 = twopass->minpsize; |
331 |
|
|
332 |
|
total2 += dbytes2; |
333 |
} |
} |
334 |
|
|
335 |
++frames; |
++frames; |
385 |
{ |
{ |
386 |
i_total += twopass->nns1.bytes + twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
i_total += twopass->nns1.bytes + twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
387 |
total += twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
total += twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
388 |
|
twopass->keyframe_locations[i_frames] = frames; |
389 |
++i_frames; |
++i_frames; |
390 |
} |
} |
391 |
|
|
393 |
|
|
394 |
++frames; |
++frames; |
395 |
} |
} |
396 |
|
twopass->keyframe_locations[i_frames] = frames; |
397 |
|
|
398 |
// compensate for avi frame overhead |
// compensate for avi frame overhead |
399 |
desired -= frames * 24; |
desired -= frames * 24; |
523 |
} |
} |
524 |
} |
} |
525 |
|
|
526 |
|
if (frames == 0) |
527 |
|
{ |
528 |
|
twopass->minpsize = (twopass->nns1.kblk + 88) / 8; |
529 |
|
twopass->minisize = ((twopass->nns1.kblk * 22) + 240) / 8; |
530 |
|
} |
531 |
|
|
532 |
if (!codec_is_in_credits(&codec->config, frames) && |
if (!codec_is_in_credits(&codec->config, frames) && |
533 |
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
534 |
{ |
{ |
535 |
double dbytes = twopass->nns1.bytes / twopass->movie_curve; |
dbytes = twopass->nns1.bytes / twopass->movie_curve; |
536 |
total1 += dbytes; |
total1 += dbytes; |
537 |
|
|
538 |
if (codec->config.use_alt_curve) |
if (codec->config.use_alt_curve) |
540 |
if (dbytes > twopass->average_frame) |
if (dbytes > twopass->average_frame) |
541 |
{ |
{ |
542 |
if (dbytes >= twopass->alt_curve_high) |
if (dbytes >= twopass->alt_curve_high) |
543 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
544 |
else |
else |
545 |
{ |
{ |
546 |
switch(codec->config.alt_curve_type) |
switch(codec->config.alt_curve_type) |
547 |
{ |
{ |
548 |
case 2: |
case 2: |
549 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
550 |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
551 |
break; |
break; |
552 |
case 1: |
case 1: |
553 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
554 |
(dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
(dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
555 |
break; |
break; |
556 |
case 0: |
case 0: |
557 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
558 |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
559 |
} |
} |
560 |
} |
} |
562 |
else |
else |
563 |
{ |
{ |
564 |
if (dbytes <= twopass->alt_curve_low) |
if (dbytes <= twopass->alt_curve_low) |
565 |
total2 += dbytes; |
dbytes2 = dbytes; |
566 |
else |
else |
567 |
{ |
{ |
568 |
switch(codec->config.alt_curve_type) |
switch(codec->config.alt_curve_type) |
569 |
{ |
{ |
570 |
case 2: |
case 2: |
571 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
572 |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
573 |
break; |
break; |
574 |
case 1: |
case 1: |
575 |
total2 += dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
576 |
(dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
(dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
577 |
break; |
break; |
578 |
case 0: |
case 0: |
579 |
total2 += dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
dbytes2 = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
580 |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
(1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
581 |
} |
} |
582 |
} |
} |
586 |
{ |
{ |
587 |
if (dbytes > twopass->average_frame) |
if (dbytes > twopass->average_frame) |
588 |
{ |
{ |
589 |
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
590 |
codec->config.curve_compression_high / 100.0); |
codec->config.curve_compression_high / 100.0); |
591 |
} |
} |
592 |
else |
else |
593 |
{ |
{ |
594 |
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
595 |
codec->config.curve_compression_low / 100.0); |
codec->config.curve_compression_low / 100.0); |
596 |
} |
} |
597 |
} |
} |
598 |
|
|
599 |
|
if (dbytes2 < twopass->minpsize) |
600 |
|
dbytes2 = twopass->minpsize; |
601 |
|
|
602 |
|
total2 += dbytes2; |
603 |
} |
} |
604 |
|
|
605 |
++frames; |
++frames; |
709 |
} |
} |
710 |
|
|
711 |
twopass->overflow = 0; |
twopass->overflow = 0; |
712 |
|
twopass->KFoverflow = 0; |
713 |
|
twopass->KFoverflow_partial = 0; |
714 |
|
twopass->KF_idx = 1; |
715 |
|
|
716 |
break; |
break; |
717 |
} |
} |
732 |
int bytes1, bytes2; |
int bytes1, bytes2; |
733 |
int overflow; |
int overflow; |
734 |
int credits_pos; |
int credits_pos; |
735 |
|
int capped_to_max_framesize = 0; |
736 |
|
int KFdistance, KF_min_size; |
737 |
|
|
738 |
if (codec->framenum == 0) |
if (codec->framenum == 0) |
739 |
{ |
{ |
742 |
for (i=0 ; i<32 ; ++i) |
for (i=0 ; i<32 ; ++i) |
743 |
{ |
{ |
744 |
quant_error[i] = 0.0; |
quant_error[i] = 0.0; |
745 |
|
twopass->quant_count[i] = 0; |
746 |
} |
} |
747 |
|
|
748 |
curve_comp_error = 0.0; |
curve_comp_error = 0.0; |
817 |
} |
} |
818 |
else // DLG_MODE_2PASS_2_EXT |
else // DLG_MODE_2PASS_2_EXT |
819 |
{ |
{ |
820 |
|
if (codec->config.credits_mode == CREDITS_MODE_QUANT) |
821 |
|
{ |
822 |
|
if (codec->config.credits_quant_i != codec->config.credits_quant_p) |
823 |
|
{ |
824 |
|
frame->quant = frame->intra ? |
825 |
|
codec->config.credits_quant_i : |
826 |
|
codec->config.credits_quant_p; |
827 |
|
} |
828 |
|
else |
829 |
|
{ |
830 |
|
frame->quant = codec->config.credits_quant_p; |
831 |
|
frame->intra = -1; |
832 |
|
} |
833 |
|
|
834 |
|
twopass->bytes1 = bytes1; |
835 |
|
twopass->bytes2 = bytes1; |
836 |
|
twopass->desired_bytes2 = bytes1; |
837 |
|
return ICERR_OK; |
838 |
|
} |
839 |
|
else |
840 |
bytes2 = twopass->nns2.bytes; |
bytes2 = twopass->nns2.bytes; |
841 |
} |
} |
842 |
} |
} |
958 |
bytes2 += ((int)dbytes); |
bytes2 += ((int)dbytes); |
959 |
} |
} |
960 |
|
|
961 |
|
if (frame->intra) |
962 |
|
{ |
963 |
|
if (bytes2 < twopass->minisize) |
964 |
|
{ |
965 |
|
curve_comp_error -= twopass->minisize - bytes2; |
966 |
|
bytes2 = twopass->minisize; |
967 |
|
} |
968 |
|
} |
969 |
|
else |
970 |
|
{ |
971 |
// cap bytes2 to first pass size, lowers number of quant=1 frames |
// cap bytes2 to first pass size, lowers number of quant=1 frames |
972 |
if (bytes2 > bytes1) |
if (bytes2 > bytes1) |
973 |
{ |
{ |
974 |
curve_comp_error += bytes2 - bytes1; |
curve_comp_error += bytes2 - bytes1; |
975 |
bytes2 = bytes1; |
bytes2 = bytes1; |
976 |
} |
} |
977 |
else if (bytes2 < 1) |
else if (bytes2 < twopass->minpsize) |
978 |
{ |
bytes2 = twopass->minpsize; |
|
curve_comp_error += --bytes2; |
|
|
bytes2 = 1; |
|
979 |
} |
} |
980 |
} |
} |
981 |
|
|
982 |
twopass->desired_bytes2 = bytes2; |
twopass->desired_bytes2 = bytes2; |
983 |
|
|
984 |
|
// if this keyframe is too close to the next, |
985 |
|
// reduce it's byte allotment |
986 |
|
if (frame->intra && !credits_pos) |
987 |
|
{ |
988 |
|
KFdistance = codec->twopass.keyframe_locations[codec->twopass.KF_idx] - |
989 |
|
codec->twopass.keyframe_locations[codec->twopass.KF_idx - 1]; |
990 |
|
|
991 |
|
if (KFdistance < codec->config.kftreshold) |
992 |
|
{ |
993 |
|
KFdistance = KFdistance - codec->config.min_key_interval; |
994 |
|
|
995 |
|
if (KFdistance >= 0) |
996 |
|
{ |
997 |
|
KF_min_size = bytes2 * (100 - codec->config.kfreduction) / 100; |
998 |
|
if (KF_min_size < 1) |
999 |
|
KF_min_size = 1; |
1000 |
|
|
1001 |
|
bytes2 = KF_min_size + (bytes2 - KF_min_size) * KFdistance / |
1002 |
|
(codec->config.kftreshold - codec->config.min_key_interval); |
1003 |
|
|
1004 |
|
if (bytes2 < 1) |
1005 |
|
bytes2 = 1; |
1006 |
|
} |
1007 |
|
} |
1008 |
|
} |
1009 |
|
|
1010 |
// Foxer: scale overflow in relation to average size, so smaller frames don't get |
// Foxer: scale overflow in relation to average size, so smaller frames don't get |
1011 |
// too much/little bitrate |
// too much/little bitrate |
1012 |
overflow = (int)((double)overflow * bytes2 / twopass->average_frame); |
overflow = (int)((double)overflow * bytes2 / twopass->average_frame * |
1013 |
|
(bytes1 - bytes2) / bytes1); |
1014 |
|
|
1015 |
// Foxer: reign in overflow with huge frames |
// Foxer: reign in overflow with huge frames |
1016 |
if (labs(overflow) > labs(twopass->overflow)) |
if (labs(overflow) > labs(twopass->overflow)) |
1019 |
} |
} |
1020 |
|
|
1021 |
// Foxer: make sure overflow doesn't run away |
// Foxer: make sure overflow doesn't run away |
1022 |
if (overflow > bytes2 * 6 / 10) |
if (overflow > bytes2 * codec->config.twopass_max_overflow_improvement / 100) |
1023 |
{ |
{ |
1024 |
bytes2 += (overflow <= bytes2) ? bytes2 * 6 / 10 : overflow * 6 / 10; |
bytes2 += (overflow <= bytes2) ? bytes2 * codec->config.twopass_max_overflow_improvement / 100 : |
1025 |
|
overflow * codec->config.twopass_max_overflow_improvement / 100; |
1026 |
} |
} |
1027 |
else if (overflow < bytes2 * -6 / 10) |
else if (overflow < bytes2 * codec->config.twopass_max_overflow_degradation / -100) |
1028 |
{ |
{ |
1029 |
bytes2 += bytes2 * -6 / 10; |
bytes2 += bytes2 * codec->config.twopass_max_overflow_degradation / -100; |
1030 |
} |
} |
1031 |
else |
else |
1032 |
{ |
{ |
1033 |
bytes2 += overflow; |
bytes2 += overflow; |
1034 |
} |
} |
1035 |
|
|
1036 |
|
if (bytes2 > twopass->max_framesize) |
1037 |
|
{ |
1038 |
|
capped_to_max_framesize = 1; |
1039 |
|
bytes2 = twopass->max_framesize; |
1040 |
|
} |
1041 |
|
|
1042 |
if (bytes2 < 1) |
if (bytes2 < 1) |
1043 |
{ |
{ |
1044 |
bytes2 = 1; |
bytes2 = 1; |
1102 |
} |
} |
1103 |
|
|
1104 |
// subsequent frame quants can only be +- 2 |
// subsequent frame quants can only be +- 2 |
1105 |
if (last_quant) |
if (last_quant && capped_to_max_framesize == 0) |
1106 |
{ |
{ |
1107 |
if (frame->quant > last_quant + 2) |
if (frame->quant > last_quant + 2) |
1108 |
{ |
{ |
1117 |
} |
} |
1118 |
} |
} |
1119 |
|
|
1120 |
|
if (capped_to_max_framesize == 0) |
1121 |
last_quant = frame->quant; |
last_quant = frame->quant; |
1122 |
|
|
1123 |
if (codec->config.quant_type == QUANT_MODE_MOD) |
if (codec->config.quant_type == QUANT_MODE_MOD) |
1136 |
|
|
1137 |
NNSTATS nns1; |
NNSTATS nns1; |
1138 |
DWORD wrote; |
DWORD wrote; |
1139 |
|
int credits_pos, tempdiv; |
1140 |
char* quant_type; |
char* quant_type; |
1141 |
|
|
1142 |
if (codec->framenum == 0) |
if (codec->framenum == 0) |
1159 |
nns1.md_u = nns1.md_y = 0; |
nns1.md_u = nns1.md_y = 0; |
1160 |
nns1.mk_u = nns1.mk_y = 0; |
nns1.mk_u = nns1.mk_y = 0; |
1161 |
|
|
1162 |
nns1.quant = stats->quant; |
// nns1.quant = stats->quant; |
1163 |
|
nns1.quant = 2; // ugly fix for lumi masking in 1st pass returning new quant |
1164 |
if (frame->intra) |
if (frame->intra) |
1165 |
{ |
{ |
1166 |
nns1.quant |= NNSTATS_KEYFRAME; |
nns1.quant |= NNSTATS_KEYFRAME; |
1183 |
|
|
1184 |
case DLG_MODE_2PASS_2_INT : |
case DLG_MODE_2PASS_2_INT : |
1185 |
case DLG_MODE_2PASS_2_EXT : |
case DLG_MODE_2PASS_2_EXT : |
1186 |
|
credits_pos = codec_is_in_credits(&codec->config, codec->framenum); |
1187 |
|
if (!credits_pos) |
1188 |
|
{ |
1189 |
|
codec->twopass.quant_count[frame->quant]++; |
1190 |
|
if ((codec->twopass.nns1.quant & NNSTATS_KEYFRAME)) |
1191 |
|
{ |
1192 |
|
// calculate how much to distribute per frame in |
1193 |
|
// order to make up for this keyframe's overflow |
1194 |
|
|
1195 |
|
codec->twopass.overflow += codec->twopass.KFoverflow; |
1196 |
|
codec->twopass.KFoverflow = codec->twopass.desired_bytes2 - frame->length; |
1197 |
|
|
1198 |
|
tempdiv = (codec->twopass.keyframe_locations[codec->twopass.KF_idx] - |
1199 |
|
codec->twopass.keyframe_locations[codec->twopass.KF_idx - 1]); |
1200 |
|
|
1201 |
|
if (tempdiv > 1) |
1202 |
|
{ |
1203 |
|
// non-consecutive keyframes |
1204 |
|
codec->twopass.KFoverflow_partial = codec->twopass.KFoverflow / (tempdiv - 1); |
1205 |
|
} |
1206 |
|
else |
1207 |
|
{ |
1208 |
|
// consecutive keyframes |
1209 |
|
codec->twopass.overflow += codec->twopass.KFoverflow; |
1210 |
|
codec->twopass.KFoverflow = 0; |
1211 |
|
codec->twopass.KFoverflow_partial = 0; |
1212 |
|
} |
1213 |
|
codec->twopass.KF_idx++; |
1214 |
|
} |
1215 |
|
else |
1216 |
|
{ |
1217 |
|
// distribute part of the keyframe overflow |
1218 |
|
|
1219 |
|
codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length + |
1220 |
|
codec->twopass.KFoverflow_partial; |
1221 |
|
codec->twopass.KFoverflow -= codec->twopass.KFoverflow_partial; |
1222 |
|
} |
1223 |
|
} |
1224 |
|
else |
1225 |
|
{ |
1226 |
codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length; |
codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length; |
1227 |
DEBUG2ND(frame->quant, quant_type, frame->intra, codec->twopass.bytes1, codec->twopass.desired_bytes2, frame->length, codec->twopass.overflow, codec_is_in_credits(&codec->config, codec->framenum)) |
|
1228 |
|
// ugly fix for credits.. |
1229 |
|
codec->twopass.overflow += codec->twopass.KFoverflow; |
1230 |
|
codec->twopass.KFoverflow = 0; |
1231 |
|
codec->twopass.KFoverflow_partial = 0; |
1232 |
|
// end of ugly fix. |
1233 |
|
} |
1234 |
|
|
1235 |
|
DEBUG2ND(frame->quant, quant_type, frame->intra, codec->twopass.bytes1, codec->twopass.desired_bytes2, frame->length, codec->twopass.overflow, credits_pos) |
1236 |
break; |
break; |
1237 |
|
|
1238 |
default: |
default: |
1242 |
return ICERR_OK; |
return ICERR_OK; |
1243 |
} |
} |
1244 |
|
|
1245 |
|
void codec_2pass_finish(CODEC* codec) |
1246 |
|
{ |
1247 |
|
int i; |
1248 |
|
char s[100]; |
1249 |
|
if (codec->config.mode == DLG_MODE_2PASS_2_EXT || codec->config.mode == DLG_MODE_2PASS_2_INT) |
1250 |
|
{ |
1251 |
|
// output the quantizer distribution for this encode. |
1252 |
|
|
1253 |
|
OutputDebugString("Quantizer distribution for 2nd pass:"); |
1254 |
|
for (i=1; i<=31; i++) |
1255 |
|
{ |
1256 |
|
if (codec->twopass.quant_count[i]) |
1257 |
|
{ |
1258 |
|
wsprintf(s, "Q:%i:%i", i, codec->twopass.quant_count[i]); |
1259 |
|
OutputDebugString(s); |
1260 |
|
} |
1261 |
|
} |
1262 |
|
return; |
1263 |
|
} |
1264 |
|
} |
1265 |
|
|