23 |
* |
* |
24 |
* History: |
* History: |
25 |
* |
* |
26 |
|
* 12.07.2002 num_threads |
27 |
|
* 23.06.2002 XVID_CPU_CHKONLY; loading speed up |
28 |
|
* 25.04.2002 ICDECOMPRESS_PREROLL |
29 |
|
* 17.04.2002 re-enabled lumi masking for 1st pass |
30 |
|
* 15.04.2002 updated cbr support |
31 |
|
* 04.04.2002 separated 2-pass code to 2pass.c |
32 |
|
* interlacing support |
33 |
|
* hinted ME support |
34 |
|
* 23.03.2002 daniel smith <danielsmith@astroboymail.com> |
35 |
|
* changed inter4v to only be in modes 5 or 6 |
36 |
|
* fixed null mode crash ? |
37 |
|
* merged foxer's alternative 2-pass code |
38 |
|
* added DEBUGERR output on errors instead of returning |
39 |
* 16.03.2002 daniel smith <danielsmith@astroboymail.com> |
* 16.03.2002 daniel smith <danielsmith@astroboymail.com> |
40 |
* changed BITMAPV4HEADER to BITMAPINFOHEADER |
* changed BITMAPV4HEADER to BITMAPINFOHEADER |
41 |
* - prevents memcpy crash in compress_get_format() |
* - prevents memcpy crash in compress_get_format() |
43 |
* motion search precision = 0 now effective in 2-pass |
* motion search precision = 0 now effective in 2-pass |
44 |
* modulated quantization |
* modulated quantization |
45 |
* added DX50 fourcc |
* added DX50 fourcc |
46 |
* 01.12.2001 inital version; (c)2001 peter ross <suxen_drol@hotmail.com> |
* 01.12.2001 inital version; (c)2001 peter ross <pross@xvid.org> |
47 |
* |
* |
48 |
*************************************************************************/ |
*************************************************************************/ |
49 |
|
|
51 |
#include <vfw.h> |
#include <vfw.h> |
52 |
|
|
53 |
#include "codec.h" |
#include "codec.h" |
54 |
#include <math.h> // fabs() |
#include "2pass.h" |
55 |
|
|
56 |
int pmvfast_presets[7] = { |
int pmvfast_presets[7] = { |
57 |
0, PMV_QUICKSTOP16, PMV_EARLYSTOP16, PMV_EARLYSTOP16 | PMV_EARLYSTOP8, |
0, PMV_QUICKSTOP16, 0, 0, |
58 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 | PMV_HALFPELDIAMOND8, |
0 | PMV_HALFPELREFINE16 | PMV_HALFPELDIAMOND8, |
59 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 | PMV_HALFPELDIAMOND8, |
0 | PMV_HALFPELREFINE16 | PMV_HALFPELDIAMOND8 | |
60 |
PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | |
PMV_ADVANCEDDIAMOND16, PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | |
61 |
PMV_EARLYSTOP8 | PMV_HALFPELREFINE8 | PMV_HALFPELDIAMOND8 |
PMV_HALFPELREFINE8 | PMV_HALFPELDIAMOND8 | PMV_USESQUARES16 |
62 |
}; |
}; |
63 |
|
|
64 |
/* return xvid compatbile colorspace, |
/* return xvid compatbile colorspace, |
67 |
|
|
68 |
int get_colorspace(BITMAPINFOHEADER * hdr) |
int get_colorspace(BITMAPINFOHEADER * hdr) |
69 |
{ |
{ |
70 |
if (hdr->biHeight < 0) |
/* rgb only: negative height specifies top down image */ |
71 |
{ |
int rgb_flip = (hdr->biHeight < 0 ? 0 : XVID_CSP_VFLIP); |
|
DEBUG("colorspace: inverted input format not supported"); |
|
|
return XVID_CSP_NULL; |
|
|
} |
|
72 |
|
|
73 |
switch(hdr->biCompression) |
switch(hdr->biCompression) |
74 |
{ |
{ |
76 |
if (hdr->biBitCount == 16) |
if (hdr->biBitCount == 16) |
77 |
{ |
{ |
78 |
DEBUG("RGB16 (RGB555)"); |
DEBUG("RGB16 (RGB555)"); |
79 |
return XVID_CSP_VFLIP | XVID_CSP_RGB555; |
return rgb_flip | XVID_CSP_RGB555; |
80 |
} |
} |
81 |
if (hdr->biBitCount == 24) |
if (hdr->biBitCount == 24) |
82 |
{ |
{ |
83 |
DEBUG("RGB24"); |
DEBUG("RGB24"); |
84 |
return XVID_CSP_VFLIP | XVID_CSP_RGB24; |
return rgb_flip | XVID_CSP_RGB24; |
85 |
} |
} |
86 |
if (hdr->biBitCount == 32) |
if (hdr->biBitCount == 32) |
87 |
{ |
{ |
88 |
DEBUG("RGB32"); |
DEBUG("RGB32"); |
89 |
return XVID_CSP_VFLIP | XVID_CSP_RGB32; |
return rgb_flip | XVID_CSP_RGB32; |
90 |
} |
} |
91 |
|
|
92 |
DEBUG1("BI_RGB unsupported", hdr->biBitCount); |
DEBUG1("unsupported BI_RGB biBitCount", hdr->biBitCount); |
93 |
return XVID_CSP_NULL; |
return XVID_CSP_NULL; |
94 |
|
|
95 |
// how do these work in BITMAPINFOHEADER ??? |
case BI_BITFIELDS : |
96 |
/* case BI_BITFIELDS : |
if (hdr->biSize >= sizeof(BITMAPV4HEADER)) |
97 |
if (hdr->biBitCount == 16 |
{ |
98 |
if(hdr->biBitCount == 16 && |
BITMAPV4HEADER * hdr4 = (BITMAPV4HEADER *)hdr; |
99 |
hdr->bV4RedMask == 0x7c00 && |
|
100 |
hdr->bV4GreenMask == 0x3e0 && |
if (hdr4->bV4BitCount == 16 && |
101 |
hdr->bV4BlueMask == 0x1f) |
hdr4->bV4RedMask == 0x7c00 && |
102 |
|
hdr4->bV4GreenMask == 0x3e0 && |
103 |
|
hdr4->bV4BlueMask == 0x1f) |
104 |
{ |
{ |
105 |
DEBUG("RGB555"); |
DEBUG("RGB555"); |
106 |
return XVID_CSP_VFLIP | XVID_CSP_RGB555; |
return rgb_flip | XVID_CSP_RGB555; |
107 |
} |
} |
108 |
if(hdr->bV4BitCount == 16 && |
|
109 |
hdr->bV4RedMask == 0xf800 && |
if(hdr4->bV4BitCount == 16 && |
110 |
hdr->bV4GreenMask == 0x7e0 && |
hdr4->bV4RedMask == 0xf800 && |
111 |
hdr->bV4BlueMask == 0x1f) |
hdr4->bV4GreenMask == 0x7e0 && |
112 |
|
hdr4->bV4BlueMask == 0x1f) |
113 |
{ |
{ |
114 |
DEBUG("RGB565"); |
DEBUG("RGB565"); |
115 |
return XVID_CSP_VFLIP | XVID_CSP_RGB565; |
return rgb_flip | XVID_CSP_RGB565; |
116 |
} |
} |
117 |
|
|
118 |
DEBUG1("BI_FIELDS unsupported", hdr->bV4BitCount); |
DEBUG("unsupported BI_BITFIELDS mode"); |
119 |
return XVID_CSP_NULL; |
return XVID_CSP_NULL; |
120 |
*/ |
} |
121 |
|
|
122 |
|
DEBUG("unsupported BI_BITFIELDS/BITMAPHEADER combination"); |
123 |
|
return XVID_CSP_NULL; |
124 |
|
|
125 |
case FOURCC_I420: |
case FOURCC_I420: |
126 |
case FOURCC_IYUV: |
case FOURCC_IYUV: |
127 |
DEBUG("IYUY"); |
DEBUG("IYUY"); |
133 |
|
|
134 |
case FOURCC_YUYV : |
case FOURCC_YUYV : |
135 |
case FOURCC_YUY2 : |
case FOURCC_YUY2 : |
|
case FOURCC_V422 : |
|
136 |
DEBUG("YUY2"); |
DEBUG("YUY2"); |
137 |
return XVID_CSP_YUY2; |
return XVID_CSP_YUY2; |
138 |
|
|
144 |
DEBUG("UYVY"); |
DEBUG("UYVY"); |
145 |
return XVID_CSP_UYVY; |
return XVID_CSP_UYVY; |
146 |
|
|
147 |
} |
default : |
148 |
DEBUGFOURCC("colorspace: unknown", hdr->biCompression); |
DEBUGFOURCC("unsupported colorspace", hdr->biCompression); |
149 |
return XVID_CSP_NULL; |
return XVID_CSP_NULL; |
150 |
} |
} |
151 |
|
} |
152 |
|
|
153 |
|
|
154 |
/* compressor */ |
/* compressor */ |
172 |
} |
} |
173 |
|
|
174 |
if (inhdr->biWidth != outhdr->biWidth || inhdr->biHeight != outhdr->biHeight || |
if (inhdr->biWidth != outhdr->biWidth || inhdr->biHeight != outhdr->biHeight || |
175 |
(outhdr->biCompression != FOURCC_XVID && outhdr->biCompression != FOURCC_DIVX)) |
(outhdr->biCompression != FOURCC_XVID && outhdr->biCompression != FOURCC_DIVX && outhdr->biCompression != FOURCC_DX50)) |
176 |
{ |
{ |
177 |
return ICERR_BADFORMAT; |
return ICERR_BADFORMAT; |
178 |
} |
} |
198 |
|
|
199 |
memcpy(outhdr, inhdr, sizeof(BITMAPINFOHEADER)); |
memcpy(outhdr, inhdr, sizeof(BITMAPINFOHEADER)); |
200 |
outhdr->biSize = sizeof(BITMAPINFOHEADER); |
outhdr->biSize = sizeof(BITMAPINFOHEADER); |
|
outhdr->biBitCount = 24; // or 16 |
|
201 |
outhdr->biSizeImage = compress_get_size(codec, lpbiInput, lpbiOutput); |
outhdr->biSizeImage = compress_get_size(codec, lpbiInput, lpbiOutput); |
202 |
outhdr->biXPelsPerMeter = 0; |
outhdr->biXPelsPerMeter = 0; |
203 |
outhdr->biYPelsPerMeter = 0; |
outhdr->biYPelsPerMeter = 0; |
223 |
|
|
224 |
LRESULT compress_get_size(CODEC * codec, BITMAPINFO * lpbiInput, BITMAPINFO * lpbiOutput) |
LRESULT compress_get_size(CODEC * codec, BITMAPINFO * lpbiInput, BITMAPINFO * lpbiOutput) |
225 |
{ |
{ |
226 |
return lpbiOutput->bmiHeader.biWidth * lpbiOutput->bmiHeader.biHeight * 3; |
return 2 * lpbiOutput->bmiHeader.biWidth * lpbiOutput->bmiHeader.biHeight * 3; |
227 |
} |
} |
228 |
|
|
229 |
|
|
244 |
switch (codec->config.mode) |
switch (codec->config.mode) |
245 |
{ |
{ |
246 |
case DLG_MODE_CBR : |
case DLG_MODE_CBR : |
247 |
DEBUG1("bitrate: ", codec->config.bitrate); |
param.rc_bitrate = codec->config.rc_bitrate; |
248 |
param.bitrate = codec->config.bitrate; |
param.rc_reaction_delay_factor = codec->config.rc_reaction_delay_factor; |
249 |
param.rc_buffersize = codec->config.rc_buffersize; |
param.rc_averaging_period = codec->config.rc_averaging_period; |
250 |
|
param.rc_buffer = codec->config.rc_buffer; |
251 |
break; |
break; |
252 |
|
|
253 |
case DLG_MODE_VBR_QUAL : |
case DLG_MODE_VBR_QUAL : |
254 |
codec->config.fquant = 0; |
codec->config.fquant = 0; |
255 |
param.bitrate = 0; |
param.rc_bitrate = 0; |
256 |
break; |
break; |
257 |
|
|
258 |
case DLG_MODE_VBR_QUANT : |
case DLG_MODE_VBR_QUANT : |
259 |
codec->config.fquant = (float) codec->config.quant; |
codec->config.fquant = (float) codec->config.quant; |
260 |
param.bitrate = 0; |
param.rc_bitrate = 0; |
261 |
break; |
break; |
262 |
|
|
263 |
case DLG_MODE_2PASS_1: |
case DLG_MODE_2PASS_1: |
264 |
case DLG_MODE_2PASS_2_INT: |
case DLG_MODE_2PASS_2_INT: |
265 |
case DLG_MODE_2PASS_2_EXT: |
case DLG_MODE_2PASS_2_EXT: |
266 |
param.bitrate = 0; |
param.rc_bitrate = 0; |
267 |
|
codec->twopass.max_framesize = (int)((double)codec->config.twopass_max_bitrate / 8.0 / ((double)codec->fbase / (double)codec->fincr)); |
268 |
break; |
break; |
269 |
|
|
270 |
|
case DLG_MODE_NULL : |
271 |
|
return ICERR_OK; |
272 |
|
|
273 |
default : |
default : |
274 |
break; |
break; |
275 |
} |
} |
290 |
param.fincr = codec->fincr; |
param.fincr = codec->fincr; |
291 |
param.fbase = codec->fbase; |
param.fbase = codec->fbase; |
292 |
|
|
|
param.rc_buffersize = codec->config.rc_buffersize; |
|
|
|
|
293 |
param.min_quantizer = codec->config.min_pquant; |
param.min_quantizer = codec->config.min_pquant; |
294 |
param.max_quantizer = codec->config.max_pquant; |
param.max_quantizer = codec->config.max_pquant; |
295 |
param.max_key_interval = codec->config.max_key_interval; |
param.max_key_interval = codec->config.max_key_interval; |
296 |
|
|
297 |
|
#ifdef _SMP |
298 |
|
param.num_threads = codec->config.num_threads; |
299 |
|
#endif |
300 |
|
|
301 |
|
param.global = 0; |
302 |
|
if (codec->config.packed) param.global |= XVID_GLOBAL_PACKED; |
303 |
|
if (codec->config.dx50bvop) param.global |= XVID_GLOBAL_DX50BVOP; |
304 |
|
if (codec->config.debug) param.global |= XVID_GLOBAL_DEBUG; |
305 |
|
if (codec->config.reduced_resolution) param.global |= XVID_GLOBAL_REDUCED; |
306 |
|
param.max_bframes = codec->config.max_bframes; |
307 |
|
param.bquant_ratio = codec->config.bquant_ratio; |
308 |
|
param.bquant_offset = codec->config.bquant_offset; |
309 |
|
param.frame_drop_ratio = codec->config.frame_drop_ratio; |
310 |
|
|
311 |
switch(xvid_encore(0, XVID_ENC_CREATE, ¶m, NULL)) |
switch(xvid_encore(0, XVID_ENC_CREATE, ¶m, NULL)) |
312 |
{ |
{ |
313 |
case XVID_ERR_FAIL : |
case XVID_ERR_FAIL : |
324 |
codec->framenum = 0; |
codec->framenum = 0; |
325 |
codec->keyspacing = 0; |
codec->keyspacing = 0; |
326 |
|
|
327 |
codec->twopass.stats1 = codec->twopass.stats2 = INVALID_HANDLE_VALUE; |
codec->twopass.hints = codec->twopass.stats1 = codec->twopass.stats2 = INVALID_HANDLE_VALUE; |
328 |
|
codec->twopass.hintstream = NULL; |
329 |
|
|
330 |
return ICERR_OK; |
return ICERR_OK; |
331 |
} |
} |
336 |
if (codec->ehandle != NULL) |
if (codec->ehandle != NULL) |
337 |
{ |
{ |
338 |
xvid_encore(codec->ehandle, XVID_ENC_DESTROY, NULL, NULL); |
xvid_encore(codec->ehandle, XVID_ENC_DESTROY, NULL, NULL); |
339 |
|
|
340 |
|
if (codec->twopass.hints != INVALID_HANDLE_VALUE) |
341 |
|
{ |
342 |
|
CloseHandle(codec->twopass.hints); |
343 |
|
} |
344 |
if (codec->twopass.stats1 != INVALID_HANDLE_VALUE) |
if (codec->twopass.stats1 != INVALID_HANDLE_VALUE) |
345 |
{ |
{ |
346 |
CloseHandle(codec->twopass.stats1); |
CloseHandle(codec->twopass.stats1); |
349 |
{ |
{ |
350 |
CloseHandle(codec->twopass.stats2); |
CloseHandle(codec->twopass.stats2); |
351 |
} |
} |
352 |
|
if (codec->twopass.hintstream != NULL) |
353 |
|
{ |
354 |
|
free(codec->twopass.hintstream); |
355 |
|
} |
356 |
|
|
357 |
codec->ehandle = NULL; |
codec->ehandle = NULL; |
358 |
|
|
359 |
|
codec_2pass_finish(codec); |
360 |
} |
} |
361 |
|
|
362 |
return ICERR_OK; |
return ICERR_OK; |
384 |
frame.intra = -1; |
frame.intra = -1; |
385 |
|
|
386 |
frame.general |= XVID_HALFPEL; |
frame.general |= XVID_HALFPEL; |
387 |
|
// frame.general |= XVID_ME_EPZS; |
388 |
|
|
389 |
if(codec->config.motion_search > 3) |
frame.general |= XVID_HQACPRED; |
390 |
|
|
391 |
|
if (codec->config.motion_search > 4) |
392 |
frame.general |= XVID_INTER4V; |
frame.general |= XVID_INTER4V; |
393 |
|
|
394 |
if(((codec->config.mode == DLG_MODE_2PASS_1) ? 0 : codec->config.lum_masking) == 1) |
if (codec->config.lum_masking) |
395 |
frame.general |= XVID_LUMIMASKING; |
frame.general |= XVID_LUMIMASKING; |
396 |
|
|
397 |
frame.motion = pmvfast_presets[codec->config.motion_search]; |
if (codec->config.interlacing) |
398 |
|
frame.general |= XVID_INTERLACING; |
399 |
|
|
400 |
|
if (codec->config.qpel) { |
401 |
|
frame.general |= XVID_QUARTERPEL; |
402 |
|
frame.motion |= PMV_QUARTERPELREFINE16 | PMV_QUARTERPELREFINE8; |
403 |
|
} |
404 |
|
|
405 |
|
if (codec->config.gmc) |
406 |
|
frame.general |= XVID_GMC; |
407 |
|
|
408 |
|
if (codec->config.chromame) |
409 |
|
frame.motion |= PMV_CHROMA16 + PMV_CHROMA8; |
410 |
|
|
411 |
|
if (codec->config.reduced_resolution) |
412 |
|
frame.general |= XVID_REDUCED; |
413 |
|
|
414 |
|
if (codec->config.chroma_opt) |
415 |
|
frame.general |= XVID_CHROMAOPT; |
416 |
|
// added by koepi for credits greyscale |
417 |
|
|
418 |
|
check_greyscale_mode(&codec->config, &frame, codec->framenum); |
419 |
|
|
420 |
|
// end of koepi's addition |
421 |
|
|
422 |
|
|
423 |
|
// fix 1pass modes/hinted MV by koepi |
424 |
|
if (codec->config.hinted_me && (codec->config.mode == DLG_MODE_CBR || codec->config.mode == DLG_MODE_VBR_QUAL || codec->config.mode == DLG_MODE_VBR_QUANT)) |
425 |
|
{ |
426 |
|
codec->config.hinted_me = 0; |
427 |
|
} |
428 |
|
// end of ugly hack |
429 |
|
|
430 |
|
if (codec->config.hinted_me && codec->config.mode == DLG_MODE_2PASS_1) |
431 |
|
{ |
432 |
|
frame.hint.hintstream = codec->twopass.hintstream; |
433 |
|
frame.hint.rawhints = 0; |
434 |
|
frame.general |= XVID_HINTEDME_GET; |
435 |
|
} |
436 |
|
else if (codec->config.hinted_me && (codec->config.mode == DLG_MODE_2PASS_2_EXT || codec->config.mode == DLG_MODE_2PASS_2_INT)) |
437 |
|
{ |
438 |
|
DWORD read; |
439 |
|
DWORD blocksize; |
440 |
|
|
441 |
|
frame.hint.hintstream = codec->twopass.hintstream; |
442 |
|
frame.hint.rawhints = 0; |
443 |
|
frame.general |= XVID_HINTEDME_SET; |
444 |
|
|
445 |
|
if (codec->twopass.hints == INVALID_HANDLE_VALUE) |
446 |
|
{ |
447 |
|
codec->twopass.hints = CreateFile(codec->config.hintfile, GENERIC_READ, 0, 0, OPEN_EXISTING, 0, 0); |
448 |
|
if (codec->twopass.hints == INVALID_HANDLE_VALUE) |
449 |
|
{ |
450 |
|
DEBUGERR("couldn't open hints file"); |
451 |
|
return ICERR_ERROR; |
452 |
|
} |
453 |
|
} |
454 |
|
if (!ReadFile(codec->twopass.hints, &blocksize, sizeof(DWORD), &read, 0) || read != sizeof(DWORD) || |
455 |
|
!ReadFile(codec->twopass.hints, frame.hint.hintstream, blocksize, &read, 0) || read != blocksize) |
456 |
|
{ |
457 |
|
DEBUGERR("couldn't read from hints file"); |
458 |
|
return ICERR_ERROR; |
459 |
|
} |
460 |
|
} |
461 |
|
|
462 |
|
frame.motion |= pmvfast_presets[codec->config.motion_search]; |
463 |
|
|
464 |
|
switch (codec->config.vhq_mode) |
465 |
|
{ |
466 |
|
case VHQ_MODE_DECISION : |
467 |
|
frame.general |= XVID_MODEDECISION_BITS; |
468 |
|
break; |
469 |
|
|
470 |
|
case VHQ_LIMITED_SEARCH : |
471 |
|
frame.general |= XVID_MODEDECISION_BITS; |
472 |
|
frame.motion |= HALFPELREFINE16_BITS; |
473 |
|
frame.motion |= QUARTERPELREFINE16_BITS; |
474 |
|
break; |
475 |
|
|
476 |
|
case VHQ_MEDIUM_SEARCH : |
477 |
|
frame.general |= XVID_MODEDECISION_BITS; |
478 |
|
frame.motion |= HALFPELREFINE16_BITS; |
479 |
|
frame.motion |= HALFPELREFINE8_BITS; |
480 |
|
frame.motion |= QUARTERPELREFINE16_BITS; |
481 |
|
frame.motion |= QUARTERPELREFINE8_BITS; |
482 |
|
frame.motion |= CHECKPREDICTION_BITS; |
483 |
|
break; |
484 |
|
|
485 |
|
case VHQ_WIDE_SEARCH : |
486 |
|
frame.general |= XVID_MODEDECISION_BITS; |
487 |
|
frame.motion |= HALFPELREFINE16_BITS; |
488 |
|
frame.motion |= HALFPELREFINE8_BITS; |
489 |
|
frame.motion |= QUARTERPELREFINE16_BITS; |
490 |
|
frame.motion |= QUARTERPELREFINE8_BITS; |
491 |
|
frame.motion |= CHECKPREDICTION_BITS; |
492 |
|
frame.motion |= EXTSEARCH_BITS; |
493 |
|
break; |
494 |
|
|
495 |
|
default : |
496 |
|
break; |
497 |
|
} |
498 |
|
|
499 |
frame.image = icc->lpInput; |
frame.image = icc->lpInput; |
500 |
|
frame.stride = (((icc->lpbiInput->biWidth * icc->lpbiInput->biBitCount) + 31) & ~31) >> 3; |
501 |
|
|
502 |
if ((frame.colorspace = get_colorspace(inhdr)) == XVID_CSP_NULL) |
if ((frame.colorspace = get_colorspace(inhdr)) == XVID_CSP_NULL) |
503 |
return ICERR_BADFORMAT; |
return ICERR_BADFORMAT; |
504 |
|
|
505 |
|
if (frame.colorspace == XVID_CSP_I420 || frame.colorspace == XVID_CSP_YV12) |
506 |
|
frame.stride = (frame.stride*2)/3; |
507 |
|
|
508 |
frame.bitstream = icc->lpOutput; |
frame.bitstream = icc->lpOutput; |
509 |
frame.length = icc->lpbiOutput->biSizeImage; |
frame.length = icc->lpbiOutput->biSizeImage; |
510 |
|
|
543 |
return ICERR_OK; |
return ICERR_OK; |
544 |
|
|
545 |
default : |
default : |
546 |
DEBUG("Invalid encoding mode"); |
DEBUGERR("Invalid encoding mode"); |
547 |
return ICERR_ERROR; |
return ICERR_ERROR; |
548 |
} |
} |
549 |
|
|
575 |
{ |
{ |
576 |
frame.intra = 1; |
frame.intra = 1; |
577 |
} |
} |
578 |
else if ((codec->keyspacing < codec->config.min_key_interval && codec->framenum) && |
else if (codec->keyspacing < codec->config.min_key_interval && codec->framenum) |
|
(codec->config.mode == DLG_MODE_2PASS_1)) |
|
579 |
{ |
{ |
580 |
DEBUG("current frame forced to p-frame"); |
DEBUG("current frame forced to p-frame"); |
581 |
frame.intra = 0; |
frame.intra = 0; |
582 |
} |
} |
583 |
|
|
584 |
|
frame.bquant = 0; |
585 |
|
|
586 |
|
// OutputDebugString(" "); |
587 |
switch (xvid_encore(codec->ehandle, XVID_ENC_ENCODE, &frame, &stats)) |
switch (xvid_encore(codec->ehandle, XVID_ENC_ENCODE, &frame, &stats)) |
588 |
{ |
{ |
589 |
case XVID_ERR_FAIL : |
case XVID_ERR_FAIL : |
596 |
return ICERR_BADFORMAT; |
return ICERR_BADFORMAT; |
597 |
} |
} |
598 |
|
|
599 |
if (frame.intra) |
if (frame.intra==1) |
600 |
{ |
{ |
601 |
codec->keyspacing = 0; |
codec->keyspacing = 0; |
602 |
*icc->lpdwFlags = AVIIF_KEYFRAME; |
*icc->lpdwFlags = AVIIF_KEYFRAME; |
613 |
outhdr->biSizeImage = 0; |
outhdr->biSizeImage = 0; |
614 |
} |
} |
615 |
|
|
616 |
|
if (frame.general & XVID_HINTEDME_GET) |
617 |
|
{ |
618 |
|
DWORD wrote; |
619 |
|
DWORD blocksize = frame.hint.hintlength; |
620 |
|
|
621 |
|
if (codec->twopass.hints == INVALID_HANDLE_VALUE) |
622 |
|
{ |
623 |
|
codec->twopass.hints = CreateFile(codec->config.hintfile, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0); |
624 |
|
if (codec->twopass.hints == INVALID_HANDLE_VALUE) |
625 |
|
{ |
626 |
|
DEBUGERR("couldn't create hints file"); |
627 |
|
return ICERR_ERROR; |
628 |
|
} |
629 |
|
} |
630 |
|
if (!WriteFile(codec->twopass.hints, &frame.hint.hintlength, sizeof(int), &wrote, 0) || wrote != sizeof(int) || |
631 |
|
!WriteFile(codec->twopass.hints, frame.hint.hintstream, blocksize, &wrote, 0) || wrote != blocksize) |
632 |
|
{ |
633 |
|
DEBUGERR("couldn't write to hints file"); |
634 |
|
return ICERR_ERROR; |
635 |
|
} |
636 |
|
} |
637 |
|
|
638 |
|
//quick fix for delayed frames |
639 |
|
// if (frame.intra != 5) |
640 |
codec_2pass_update(codec, &frame, &stats); |
codec_2pass_update(codec, &frame, &stats); |
641 |
|
|
642 |
++codec->framenum; |
++codec->framenum; |
659 |
return ICERR_ERROR; |
return ICERR_ERROR; |
660 |
} |
} |
661 |
|
|
662 |
if (inhdr->biCompression != FOURCC_XVID && inhdr->biCompression != FOURCC_DIVX) |
if (inhdr->biCompression != FOURCC_XVID && inhdr->biCompression != FOURCC_DIVX && inhdr->biCompression != FOURCC_DX50 && get_colorspace(inhdr) == XVID_CSP_NULL) |
663 |
{ |
{ |
664 |
return ICERR_BADFORMAT; |
return ICERR_BADFORMAT; |
665 |
} |
} |
691 |
return sizeof(BITMAPINFOHEADER); |
return sizeof(BITMAPINFOHEADER); |
692 |
} |
} |
693 |
|
|
694 |
result = decompress_query(codec, lpbiInput, lpbiOutput); |
/* --- yv12 --- */ |
695 |
|
|
696 |
|
if (get_colorspace(inhdr) != XVID_CSP_NULL) { |
697 |
|
memcpy(outhdr, inhdr, sizeof(BITMAPINFOHEADER)); |
698 |
|
// XXX: should we set outhdr->biSize ?? |
699 |
|
return ICERR_OK; |
700 |
|
} |
701 |
|
/* --- yv12 --- */ |
702 |
|
|
703 |
|
result = decompress_query(codec, lpbiInput, NULL); |
704 |
if (result != ICERR_OK) |
if (result != ICERR_OK) |
705 |
{ |
{ |
706 |
return result; |
return result; |
707 |
} |
} |
708 |
|
|
|
memcpy(outhdr, inhdr, sizeof(BITMAPINFOHEADER)); |
|
709 |
outhdr->biSize = sizeof(BITMAPINFOHEADER); |
outhdr->biSize = sizeof(BITMAPINFOHEADER); |
710 |
outhdr->biCompression = FOURCC_YUY2; |
outhdr->biWidth = inhdr->biWidth; |
711 |
|
outhdr->biHeight = inhdr->biHeight; |
712 |
|
outhdr->biPlanes = 1; |
713 |
|
outhdr->biBitCount = 24; |
714 |
|
outhdr->biCompression = BI_RGB; /* sonic foundry vegas video v3 only supports BI_RGB */ |
715 |
outhdr->biSizeImage = outhdr->biWidth * outhdr->biHeight * outhdr->biBitCount; |
outhdr->biSizeImage = outhdr->biWidth * outhdr->biHeight * outhdr->biBitCount; |
716 |
outhdr->biXPelsPerMeter = 0; |
outhdr->biXPelsPerMeter = 0; |
717 |
outhdr->biYPelsPerMeter = 0; |
outhdr->biYPelsPerMeter = 0; |
772 |
|
|
773 |
frame.bitstream = icd->lpInput; |
frame.bitstream = icd->lpInput; |
774 |
frame.length = icd->lpbiInput->biSizeImage; |
frame.length = icd->lpbiInput->biSizeImage; |
775 |
|
frame.general = XVID_DEC_LOWDELAY; /* force low_delay_default mode */ |
776 |
|
if (codec->config.deblock_y) |
777 |
|
frame.general |= XVID_DEC_DEBLOCKY; |
778 |
|
if (codec->config.deblock_uv) |
779 |
|
frame.general |= XVID_DEC_DEBLOCKUV; |
780 |
|
|
781 |
frame.image = icd->lpOutput; |
frame.image = icd->lpOutput; |
782 |
frame.stride = icd->lpbiOutput->biWidth; |
frame.stride = (((icd->lpbiOutput->biWidth * icd->lpbiOutput->biBitCount) + 31) & ~31) >> 3; |
783 |
|
|
784 |
if (~((icd->dwFlags & ICDECOMPRESS_HURRYUP) | (icd->dwFlags & ICDECOMPRESS_UPDATE))) |
/* --- yv12 --- */ |
785 |
|
if (icd->lpbiInput->biCompression != FOURCC_XVID && |
786 |
|
icd->lpbiInput->biCompression != FOURCC_DIVX && |
787 |
|
icd->lpbiInput->biCompression != FOURCC_DX50) |
788 |
|
{ |
789 |
|
XVID_INIT_CONVERTINFO convert; |
790 |
|
DEBUGFOURCC("input", icd->lpbiInput->biCompression); |
791 |
|
DEBUGFOURCC("output", icd->lpbiOutput->biCompression); |
792 |
|
convert.input.colorspace = get_colorspace(icd->lpbiInput); |
793 |
|
convert.input.y = icd->lpInput; |
794 |
|
convert.input.y_stride = (((icd->lpbiInput->biWidth *icd->lpbiInput->biBitCount) + 31) & ~31) >> 3; |
795 |
|
if (convert.input.colorspace == XVID_CSP_I420 || convert.input.colorspace == XVID_CSP_YV12) |
796 |
|
convert.input.y_stride = (convert.input.y_stride*2)/3; |
797 |
|
|
798 |
|
convert.output.colorspace = get_colorspace(icd->lpbiOutput); |
799 |
|
convert.output.y = icd->lpOutput; |
800 |
|
convert.output.y_stride = (((icd->lpbiOutput->biWidth *icd->lpbiOutput->biBitCount) + 31) & ~31) >> 3; |
801 |
|
if (convert.output.colorspace == XVID_CSP_I420 || convert.output.colorspace == XVID_CSP_YV12) |
802 |
|
convert.output.y_stride = (convert.output.y_stride*2)/3; |
803 |
|
|
804 |
|
convert.width = icd->lpbiInput->biWidth; |
805 |
|
convert.height = icd->lpbiInput->biHeight; |
806 |
|
convert.interlacing = 0; |
807 |
|
if (convert.input.colorspace == XVID_CSP_NULL || |
808 |
|
convert.output.colorspace == XVID_CSP_NULL || |
809 |
|
xvid_init(NULL, XVID_INIT_CONVERT, &convert, NULL) != XVID_ERR_OK) |
810 |
|
{ |
811 |
|
return ICERR_BADFORMAT; |
812 |
|
} |
813 |
|
return ICERR_OK; |
814 |
|
} |
815 |
|
/* --- yv12 --- */ |
816 |
|
|
817 |
|
|
818 |
|
if (~((icd->dwFlags & ICDECOMPRESS_HURRYUP) | (icd->dwFlags & ICDECOMPRESS_UPDATE) | (icd->dwFlags & ICDECOMPRESS_PREROLL))) |
819 |
{ |
{ |
820 |
if ((frame.colorspace = get_colorspace(icd->lpbiOutput)) == XVID_CSP_NULL) |
if ((frame.colorspace = get_colorspace(icd->lpbiOutput)) == XVID_CSP_NULL) |
821 |
{ |
{ |
827 |
frame.colorspace = XVID_CSP_NULL; |
frame.colorspace = XVID_CSP_NULL; |
828 |
} |
} |
829 |
|
|
830 |
|
if (frame.colorspace == XVID_CSP_I420 || frame.colorspace == XVID_CSP_YV12) |
831 |
|
frame.stride = (frame.stride*2)/3; |
832 |
|
|
833 |
switch (xvid_decore(codec->dhandle, XVID_DEC_DECODE, &frame, NULL)) |
switch (xvid_decore(codec->dhandle, XVID_DEC_DECODE, &frame, NULL)) |
834 |
{ |
{ |
835 |
case XVID_ERR_FAIL : |
case XVID_ERR_FAIL : |
845 |
return ICERR_OK; |
return ICERR_OK; |
846 |
} |
} |
847 |
|
|
848 |
int codec_2pass_init(CODEC* codec) |
int codec_get_quant(CODEC* codec, XVID_ENC_FRAME* frame) |
849 |
{ |
{ |
|
TWOPASS *twopass = &codec->twopass; |
|
|
DWORD version = -20; |
|
|
DWORD read, wrote; |
|
|
|
|
|
int frames = 0, credits_frames = 0, i_frames = 0; |
|
|
__int64 total = 0, i_total = 0, i_boost_total = 0, start = 0, end = 0, start_curved = 0, end_curved = 0; |
|
|
__int64 desired = codec->config.desired_size * 1024; |
|
|
|
|
|
double total1 = 0.0; |
|
|
double total2 = 0.0; |
|
|
|
|
850 |
switch (codec->config.mode) |
switch (codec->config.mode) |
851 |
{ |
{ |
852 |
case DLG_MODE_2PASS_1 : |
case DLG_MODE_VBR_QUAL : |
853 |
twopass->stats1 = CreateFile(codec->config.stats1, GENERIC_WRITE, FILE_SHARE_READ, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); |
if (codec_is_in_credits(&codec->config, codec->framenum)) |
|
if (twopass->stats1 == INVALID_HANDLE_VALUE) |
|
|
{ |
|
|
DEBUG("2pass init error - couldn't create stats1"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
if (WriteFile(twopass->stats1, &version, sizeof(DWORD), &wrote, 0) == 0 || wrote != sizeof(DWORD)) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - couldn't write to stats1"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
break; |
|
|
|
|
|
case DLG_MODE_2PASS_2_INT : |
|
|
case DLG_MODE_2PASS_2_EXT : |
|
|
twopass->stats1 = CreateFile(codec->config.stats1, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); |
|
|
if (twopass->stats1 == INVALID_HANDLE_VALUE) |
|
|
{ |
|
|
DEBUG("2pass init error - couldn't open stats1"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
if (ReadFile(twopass->stats1, &version, sizeof(DWORD), &read, 0) == 0 || read != sizeof(DWORD)) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - couldn't read from stats1"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
if (version != -20) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - wrong .stats version"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
|
|
|
if (codec->config.mode == DLG_MODE_2PASS_2_EXT) |
|
|
{ |
|
|
if (twopass->stats2 != INVALID_HANDLE_VALUE) |
|
|
{ |
|
|
CloseHandle(twopass->stats2); |
|
|
} |
|
|
|
|
|
twopass->stats2 = CreateFile(codec->config.stats2, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); |
|
|
|
|
|
if (twopass->stats2 == INVALID_HANDLE_VALUE) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - couldn't open stats2"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
if (ReadFile(twopass->stats2, &version, sizeof(DWORD), &read, 0) == 0 || read != sizeof(DWORD)) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
CloseHandle(twopass->stats2); |
|
|
twopass->stats2 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - couldn't read from stats2"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
if (version != -20) |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
CloseHandle(twopass->stats2); |
|
|
twopass->stats2 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - wrong .stats version"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
|
|
|
while (1) |
|
|
{ |
|
|
if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS) || |
|
|
!ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) |
|
|
{ |
|
|
DWORD err = GetLastError(); |
|
|
|
|
|
if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
else |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
CloseHandle(twopass->stats2); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
twopass->stats2 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - incomplete stats1/stats2 record?"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
} |
|
|
|
|
|
if (!codec_is_in_credits(&codec->config, frames)) |
|
|
{ |
|
|
if (twopass->nns1.quant & NNSTATS_KEYFRAME) |
|
|
{ |
|
|
i_boost_total = twopass->nns2.bytes * codec->config.keyframe_boost / 100; |
|
|
i_total += twopass->nns2.bytes; |
|
|
++i_frames; |
|
|
} |
|
|
|
|
|
total += twopass->nns2.bytes; |
|
|
} |
|
|
else |
|
|
++credits_frames; |
|
|
|
|
|
++frames; |
|
|
} |
|
|
|
|
|
twopass->movie_curve = ((float)(total + i_boost_total) / total); |
|
|
twopass->average_frame = ((double)(total - i_total) / (frames - credits_frames - i_frames) / twopass->movie_curve); |
|
|
|
|
|
SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
SetFilePointer(twopass->stats2, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
|
|
|
// perform prepass to compensate for over/undersizing |
|
|
frames = 0; |
|
|
|
|
|
while (1) |
|
|
{ |
|
|
if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS) || |
|
|
!ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) |
|
|
{ |
|
|
DWORD err = GetLastError(); |
|
|
|
|
|
if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
else |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
CloseHandle(twopass->stats2); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
twopass->stats2 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - incomplete stats1/stats2 record?"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
} |
|
|
|
|
|
if (!codec_is_in_credits(&codec->config, frames) && |
|
|
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
|
|
{ |
|
|
double dbytes = twopass->nns2.bytes / twopass->movie_curve; |
|
|
total1 += dbytes; |
|
|
|
|
|
if (dbytes > twopass->average_frame) |
|
|
{ |
|
|
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
|
|
codec->config.curve_compression_high / 100.0); |
|
|
} |
|
|
else |
|
|
{ |
|
|
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
|
|
codec->config.curve_compression_low / 100.0); |
|
|
} |
|
|
} |
|
|
|
|
|
++frames; |
|
|
} |
|
|
|
|
|
twopass->curve_comp_scale = total1 / total2; |
|
|
|
|
|
{ |
|
|
int asymmetric_average_frame; |
|
|
char s[100]; |
|
|
|
|
|
asymmetric_average_frame = (int)(twopass->average_frame * twopass->curve_comp_scale); |
|
|
wsprintf(s, "middle frame size for asymmetric curve compression: %i", asymmetric_average_frame); |
|
|
DEBUG2P(s); |
|
|
} |
|
|
|
|
|
SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
SetFilePointer(twopass->stats2, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
} |
|
|
else // DLG_MODE_2PASS_2_INT |
|
|
{ |
|
|
while (1) |
|
|
{ |
|
|
if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) |
|
|
{ |
|
|
DWORD err = GetLastError(); |
|
|
|
|
|
if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
else |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - incomplete stats2 record?"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
} |
|
|
|
|
|
if (codec_is_in_credits(&codec->config, frames) == CREDITS_START) |
|
|
{ |
|
|
start += twopass->nns1.bytes; |
|
|
++credits_frames; |
|
|
} |
|
|
else if (codec_is_in_credits(&codec->config, frames) == CREDITS_END) |
|
|
{ |
|
|
end += twopass->nns1.bytes; |
|
|
++credits_frames; |
|
|
} |
|
|
else if (twopass->nns1.quant & NNSTATS_KEYFRAME) |
|
854 |
{ |
{ |
855 |
i_total += twopass->nns1.bytes + twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
// added by koepi for credits greyscale |
|
total += twopass->nns1.bytes * codec->config.keyframe_boost / 100; |
|
|
++i_frames; |
|
|
} |
|
856 |
|
|
857 |
total += twopass->nns1.bytes; |
check_greyscale_mode(&codec->config, frame, codec->framenum); |
858 |
|
|
859 |
++frames; |
// end of koepi's addition |
|
} |
|
|
|
|
|
// compensate for avi frame overhead |
|
|
desired -= frames * 24; |
|
860 |
|
|
861 |
switch (codec->config.credits_mode) |
switch (codec->config.credits_mode) |
862 |
{ |
{ |
863 |
case CREDITS_MODE_RATE : |
case CREDITS_MODE_RATE : |
864 |
|
frame->quant = codec_get_vbr_quant(&codec->config, codec->config.quality * codec->config.credits_rate / 100); |
|
// credits curve = (total / desired_size) * (100 / credits_rate) |
|
|
twopass->credits_start_curve = twopass->credits_end_curve = |
|
|
((float)total / desired) * ((float)100 / codec->config.credits_rate); |
|
|
|
|
|
start_curved = (__int64)(start / twopass->credits_start_curve); |
|
|
end_curved = (__int64)(end / twopass->credits_end_curve); |
|
|
|
|
|
// movie curve = (total - credits) / (desired_size - curved credits) |
|
|
twopass->movie_curve = (float) |
|
|
(total - start - end) / |
|
|
(desired - start_curved - end_curved); |
|
|
|
|
865 |
break; |
break; |
866 |
|
|
867 |
case CREDITS_MODE_QUANT : |
case CREDITS_MODE_QUANT : |
868 |
|
frame->quant = codec->config.credits_quant_p; |
|
// movie curve = (total - credits) / (desired_size - credits) |
|
|
twopass->movie_curve = (float) |
|
|
(total - start - end) / (desired - start - end); |
|
|
|
|
|
// aid the average asymmetric frame calculation below |
|
|
start_curved = start; |
|
|
end_curved = end; |
|
|
|
|
869 |
break; |
break; |
870 |
|
|
871 |
case CREDITS_MODE_SIZE : |
default : |
872 |
|
DEBUGERR("Can't use credits size mode in quality mode"); |
|
// start curve = (start / start desired size) |
|
|
twopass->credits_start_curve = (float) |
|
|
(start / 1024) / codec->config.credits_start_size; |
|
|
|
|
|
// end curve = (end / end desired size) |
|
|
twopass->credits_end_curve = (float) |
|
|
(end / 1024) / codec->config.credits_end_size; |
|
|
|
|
|
start_curved = (__int64)(start / twopass->credits_start_curve); |
|
|
end_curved = (__int64)(end / twopass->credits_end_curve); |
|
|
|
|
|
// movie curve = (total - credits) / (desired_size - curved credits) |
|
|
twopass->movie_curve = (float) |
|
|
(total - start - end) / |
|
|
(desired - start_curved - end_curved); |
|
|
|
|
|
break; |
|
|
} |
|
|
|
|
|
// average frame size = (desired - curved credits - curved keyframes) / |
|
|
// (frames - credits frames - keyframes) |
|
|
twopass->average_frame = (double) |
|
|
(desired - start_curved - end_curved - (i_total / twopass->movie_curve)) / |
|
|
(frames - credits_frames - i_frames); |
|
|
|
|
|
SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
|
|
|
// perform prepass to compensate for over/undersizing |
|
|
frames = 0; |
|
|
|
|
|
while (1) |
|
|
{ |
|
|
if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) |
|
|
{ |
|
|
DWORD err = GetLastError(); |
|
|
|
|
|
if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
else |
|
|
{ |
|
|
CloseHandle(twopass->stats1); |
|
|
twopass->stats1 = INVALID_HANDLE_VALUE; |
|
|
DEBUG("2pass init error - incomplete stats2 record?"); |
|
873 |
return ICERR_ERROR; |
return ICERR_ERROR; |
874 |
} |
} |
875 |
} |
} |
|
|
|
|
if (!codec_is_in_credits(&codec->config, frames) && |
|
|
!(twopass->nns1.quant & NNSTATS_KEYFRAME)) |
|
|
{ |
|
|
double dbytes = twopass->nns1.bytes / twopass->movie_curve; |
|
|
total1 += dbytes; |
|
|
|
|
|
if (dbytes > twopass->average_frame) |
|
|
{ |
|
|
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
|
|
codec->config.curve_compression_high / 100.0); |
|
|
} |
|
876 |
else |
else |
877 |
{ |
{ |
878 |
total2 += ((double)dbytes + (twopass->average_frame - dbytes) * |
// added by koepi for credits greyscale |
|
codec->config.curve_compression_low / 100.0); |
|
|
} |
|
|
} |
|
879 |
|
|
880 |
++frames; |
check_greyscale_mode(&codec->config, frame, codec->framenum); |
|
} |
|
|
|
|
|
twopass->curve_comp_scale = total1 / total2; |
|
881 |
|
|
882 |
{ |
// end of koepi's addition |
|
int asymmetric_average_frame; |
|
|
char s[100]; |
|
883 |
|
|
884 |
asymmetric_average_frame = (int)(twopass->average_frame * twopass->curve_comp_scale); |
frame->quant = codec_get_vbr_quant(&codec->config, codec->config.quality); |
|
wsprintf(s, "middle frame size for asymmetric curve compression: %i", asymmetric_average_frame); |
|
|
DEBUG2P(s); |
|
|
} |
|
|
|
|
|
SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); |
|
|
} |
|
|
|
|
|
twopass->overflow = 0; |
|
|
|
|
|
break; |
|
885 |
} |
} |
|
|
|
886 |
return ICERR_OK; |
return ICERR_OK; |
|
} |
|
|
|
|
887 |
|
|
888 |
int codec_get_quant(CODEC* codec, XVID_ENC_FRAME* frame) |
case DLG_MODE_VBR_QUANT : |
|
{ |
|
|
switch (codec->config.mode) |
|
|
{ |
|
|
case DLG_MODE_VBR_QUAL : |
|
889 |
if (codec_is_in_credits(&codec->config, codec->framenum)) |
if (codec_is_in_credits(&codec->config, codec->framenum)) |
890 |
{ |
{ |
891 |
switch (codec->config.credits_mode) |
// added by koepi for credits greyscale |
|
{ |
|
|
case CREDITS_MODE_RATE : |
|
|
frame->quant = codec_get_vbr_quant(&codec->config, codec->config.quality * codec->config.credits_rate / 100); |
|
|
break; |
|
892 |
|
|
893 |
case CREDITS_MODE_QUANT : |
check_greyscale_mode(&codec->config, frame, codec->framenum); |
|
frame->quant = codec->config.credits_quant_p; |
|
|
break; |
|
894 |
|
|
895 |
default : |
// end of koepi's addition |
|
DEBUG("Can't use credits size mode in quality mode"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
frame->quant = codec_get_vbr_quant(&codec->config, codec->config.quality); |
|
|
} |
|
|
return ICERR_OK; |
|
896 |
|
|
|
case DLG_MODE_VBR_QUANT : |
|
|
if (codec_is_in_credits(&codec->config, codec->framenum)) |
|
|
{ |
|
897 |
switch (codec->config.credits_mode) |
switch (codec->config.credits_mode) |
898 |
{ |
{ |
899 |
case CREDITS_MODE_RATE : |
case CREDITS_MODE_RATE : |
907 |
break; |
break; |
908 |
|
|
909 |
default : |
default : |
910 |
DEBUG("Can't use credits size mode in quantizer mode"); |
DEBUGERR("Can't use credits size mode in quantizer mode"); |
911 |
return ICERR_ERROR; |
return ICERR_ERROR; |
912 |
} |
} |
913 |
} |
} |
914 |
else |
else |
915 |
{ |
{ |
916 |
|
// added by koepi for credits greyscale |
917 |
|
|
918 |
|
check_greyscale_mode(&codec->config, frame, codec->framenum); |
919 |
|
|
920 |
|
// end of koepi's addition |
921 |
|
|
922 |
frame->quant = codec->config.quant; |
frame->quant = codec->config.quant; |
923 |
} |
} |
924 |
return ICERR_OK; |
return ICERR_OK; |
925 |
|
|
926 |
case DLG_MODE_2PASS_1 : |
case DLG_MODE_2PASS_1 : |
927 |
|
// added by koepi for credits greyscale |
928 |
|
|
929 |
|
check_greyscale_mode(&codec->config, frame, codec->framenum); |
930 |
|
|
931 |
|
// end of koepi's addition |
932 |
|
|
933 |
if (codec->config.credits_mode == CREDITS_MODE_QUANT) |
if (codec->config.credits_mode == CREDITS_MODE_QUANT) |
934 |
{ |
{ |
935 |
if (codec_is_in_credits(&codec->config, codec->framenum)) |
if (codec_is_in_credits(&codec->config, codec->framenum)) |
948 |
return ICERR_OK; |
return ICERR_OK; |
949 |
|
|
950 |
default: |
default: |
951 |
DEBUG("get quant: invalid mode"); |
DEBUGERR("get quant: invalid mode"); |
952 |
return ICERR_ERROR; |
return ICERR_ERROR; |
953 |
} |
} |
954 |
} |
} |
955 |
|
|
956 |
|
|
957 |
int codec_2pass_get_quant(CODEC* codec, XVID_ENC_FRAME* frame) |
int codec_is_in_credits(CONFIG* config, int framenum) |
|
{ |
|
|
static double quant_error[32]; |
|
|
static double curve_comp_error; |
|
|
static int last_quant; |
|
|
|
|
|
TWOPASS * twopass = &codec->twopass; |
|
|
|
|
|
DWORD read; |
|
|
int bytes1, bytes2; |
|
|
int overflow; |
|
|
int credits_pos; |
|
|
|
|
|
if (codec->framenum == 0) |
|
|
{ |
|
|
int i; |
|
|
|
|
|
for (i=0 ; i<32 ; ++i) |
|
|
{ |
|
|
quant_error[i] = 0.0; |
|
|
} |
|
|
|
|
|
curve_comp_error = 0.0; |
|
|
last_quant = 0; |
|
|
} |
|
|
|
|
|
if (ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, 0) == 0 || read != sizeof(NNSTATS)) |
|
958 |
{ |
{ |
959 |
DEBUG("2ndpass quant: couldn't read from stats1"); |
if (config->credits_start) |
|
return ICERR_ERROR; |
|
|
} |
|
|
if (codec->config.mode == DLG_MODE_2PASS_2_EXT) |
|
960 |
{ |
{ |
961 |
if (ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, 0) == 0 || read != sizeof(NNSTATS)) |
if (framenum >= config->credits_start_begin && |
962 |
|
framenum <= config->credits_start_end) |
963 |
{ |
{ |
964 |
DEBUG("2ndpass quant: couldn't read from stats2"); |
return CREDITS_START; |
|
return ICERR_ERROR; |
|
965 |
} |
} |
966 |
} |
} |
967 |
|
|
968 |
bytes1 = twopass->nns1.bytes; |
if (config->credits_end) |
|
overflow = twopass->overflow / 8; |
|
|
|
|
|
// override codec i-frame choice (reenable in credits) |
|
|
frame->intra = (twopass->nns1.quant & NNSTATS_KEYFRAME); |
|
|
|
|
|
if (frame->intra) |
|
|
{ |
|
|
overflow = 0; |
|
|
} |
|
|
|
|
|
credits_pos = codec_is_in_credits(&codec->config, codec->framenum); |
|
|
|
|
|
if (credits_pos) |
|
|
{ |
|
|
if (codec->config.mode == DLG_MODE_2PASS_2_INT) |
|
|
{ |
|
|
switch (codec->config.credits_mode) |
|
|
{ |
|
|
case CREDITS_MODE_RATE : |
|
|
case CREDITS_MODE_SIZE : |
|
|
if (credits_pos == CREDITS_START) |
|
|
{ |
|
|
bytes2 = (int)(bytes1 / twopass->credits_start_curve); |
|
|
} |
|
|
else // CREDITS_END |
|
969 |
{ |
{ |
970 |
bytes2 = (int)(bytes1 / twopass->credits_end_curve); |
if (framenum >= config->credits_end_begin && |
971 |
} |
framenum <= config->credits_end_end) |
|
|
|
|
frame->intra = -1; |
|
|
break; |
|
|
|
|
|
case CREDITS_MODE_QUANT : |
|
|
if (codec->config.credits_quant_i != codec->config.credits_quant_p) |
|
972 |
{ |
{ |
973 |
frame->quant = frame->intra ? |
return CREDITS_END; |
|
codec->config.credits_quant_i : |
|
|
codec->config.credits_quant_p; |
|
974 |
} |
} |
|
else |
|
|
{ |
|
|
frame->quant = codec->config.credits_quant_p; |
|
|
frame->intra = -1; |
|
975 |
} |
} |
976 |
|
|
977 |
twopass->bytes1 = bytes1; |
return 0; |
|
twopass->bytes2 = bytes1; |
|
|
twopass->desired_bytes2 = bytes1; |
|
|
return ICERR_OK; |
|
|
} |
|
|
} |
|
|
else // DLG_MODE_2PASS_2_EXT |
|
|
{ |
|
|
bytes2 = twopass->nns2.bytes; |
|
|
} |
|
978 |
} |
} |
|
else // Foxer: apply curve compression outside credits |
|
|
{ |
|
|
double dbytes, curve_temp; |
|
|
|
|
|
bytes2 = (codec->config.mode == DLG_MODE_2PASS_2_INT) ? bytes1 : twopass->nns2.bytes; |
|
979 |
|
|
|
if (frame->intra) |
|
|
{ |
|
|
dbytes = ((int)(bytes2 + bytes2 * codec->config.keyframe_boost / 100)) / |
|
|
twopass->movie_curve; |
|
|
} |
|
|
else |
|
|
{ |
|
|
dbytes = bytes2 / twopass->movie_curve; |
|
|
} |
|
980 |
|
|
981 |
// spread the compression error across payback_delay frames |
int codec_get_vbr_quant(CONFIG* config, int quality) |
|
if (codec->config.bitrate_payback_method == 0) |
|
|
{ |
|
|
bytes2 = (int)(curve_comp_error / codec->config.bitrate_payback_delay); |
|
|
} |
|
|
else |
|
982 |
{ |
{ |
983 |
bytes2 = (int)(curve_comp_error * dbytes / |
static float fquant_running = 0; |
984 |
twopass->average_frame / codec->config.bitrate_payback_delay); |
static int my_quality = -1; |
985 |
|
int quant; |
986 |
|
|
987 |
if (labs(bytes2) > fabs(curve_comp_error)) |
// if quality changes, recalculate fquant (credits) |
988 |
|
if (quality != my_quality) |
989 |
{ |
{ |
990 |
bytes2 = (int)curve_comp_error; |
config->fquant = 0; |
|
} |
|
991 |
} |
} |
992 |
|
|
993 |
curve_comp_error -= bytes2; |
my_quality = quality; |
994 |
|
|
995 |
if ((codec->config.curve_compression_high + codec->config.curve_compression_low) && |
// desired quantiser = (maxQ-minQ)/100 * (100-qual) + minQ |
996 |
!frame->intra) |
if (!config->fquant) |
|
{ |
|
|
if (dbytes > twopass->average_frame) |
|
|
{ |
|
|
curve_temp = twopass->curve_comp_scale * |
|
|
((double)dbytes + (twopass->average_frame - dbytes) * |
|
|
codec->config.curve_compression_high / 100.0); |
|
|
} |
|
|
else |
|
997 |
{ |
{ |
998 |
curve_temp = twopass->curve_comp_scale * |
config->fquant = |
999 |
((double)dbytes + (twopass->average_frame - dbytes) * |
((float) (config->max_pquant - config->min_pquant) / 100) * |
1000 |
codec->config.curve_compression_low / 100.0); |
(100 - quality) + |
1001 |
} |
(float) config->min_pquant; |
1002 |
|
|
1003 |
bytes2 += ((int)curve_temp); |
fquant_running = config->fquant; |
|
curve_comp_error += curve_temp - ((int)curve_temp); |
|
|
} |
|
|
else |
|
|
{ |
|
|
curve_comp_error += dbytes - ((int)dbytes); |
|
|
bytes2 += ((int)dbytes); |
|
1004 |
} |
} |
1005 |
|
|
1006 |
// cap bytes2 to first pass size, lowers number of quant=1 frames |
if (fquant_running < config->min_pquant) |
|
if (bytes2 > bytes1) |
|
1007 |
{ |
{ |
1008 |
curve_comp_error += bytes2 - bytes1; |
fquant_running = (float) config->min_pquant; |
|
bytes2 = bytes1; |
|
1009 |
} |
} |
1010 |
else if (bytes2 < 1) |
else if(fquant_running > config->max_pquant) |
1011 |
{ |
{ |
1012 |
curve_comp_error += --bytes2; |
fquant_running = (float) config->max_pquant; |
|
bytes2 = 1; |
|
|
} |
|
1013 |
} |
} |
1014 |
|
|
1015 |
twopass->desired_bytes2 = bytes2; |
quant = (int) fquant_running; |
|
|
|
|
// Foxer: scale overflow in relation to average size, so smaller frames don't get |
|
|
// too much/little bitrate |
|
|
overflow = (int)((double)overflow * bytes2 / twopass->average_frame); |
|
|
|
|
|
// Foxer: reign in overflow with huge frames |
|
|
if (labs(overflow) > labs(twopass->overflow)) |
|
|
{ |
|
|
overflow = twopass->overflow; |
|
|
} |
|
1016 |
|
|
1017 |
// Foxer: make sure overflow doesn't run away |
// add error between fquant and quant to fquant_running |
1018 |
if (overflow > bytes2 * 6 / 10) |
fquant_running += config->fquant - quant; |
|
{ |
|
|
bytes2 += (overflow <= bytes2) ? bytes2 * 6 / 10 : overflow * 6 / 10; |
|
|
} |
|
|
else if (overflow < bytes2 * -6 / 10) |
|
|
{ |
|
|
bytes2 += bytes2 * -6 / 10; |
|
|
} |
|
|
else |
|
|
{ |
|
|
bytes2 += overflow; |
|
|
} |
|
1019 |
|
|
1020 |
if (bytes2 < 1) |
return quant; |
|
{ |
|
|
bytes2 = 1; |
|
1021 |
} |
} |
1022 |
|
|
1023 |
twopass->bytes1 = bytes1; |
// added by koepi for credits greyscale |
|
twopass->bytes2 = bytes2; |
|
1024 |
|
|
1025 |
// very 'simple' quant<->filesize relationship |
int check_greyscale_mode(CONFIG* config, XVID_ENC_FRAME* frame, int framenum) |
|
frame->quant = ((twopass->nns1.quant & ~NNSTATS_KEYFRAME) * bytes1) / bytes2; |
|
1026 |
|
|
|
if (frame->quant < 1) |
|
|
{ |
|
|
frame->quant = 1; |
|
|
} |
|
|
else if (frame->quant > 31) |
|
1027 |
{ |
{ |
|
frame->quant = 31; |
|
|
} |
|
|
else if (!frame->intra) |
|
|
{ |
|
|
// Foxer: aid desired quantizer precision by accumulating decision error |
|
|
quant_error[frame->quant] += ((double)((twopass->nns1.quant & ~NNSTATS_KEYFRAME) * |
|
|
bytes1) / bytes2) - frame->quant; |
|
1028 |
|
|
1029 |
if (quant_error[frame->quant] >= 1.0) |
if ((codec_is_in_credits(config, framenum)) && (config->mode!=DLG_MODE_CBR)) |
|
{ |
|
|
quant_error[frame->quant] -= 1.0; |
|
|
++frame->quant; |
|
|
} |
|
|
} |
|
1030 |
|
|
|
// we're done with credits |
|
|
if (codec_is_in_credits(&codec->config, codec->framenum)) |
|
1031 |
{ |
{ |
|
return ICERR_OK; |
|
|
} |
|
1032 |
|
|
1033 |
if (frame->intra) |
if (config->credits_greyscale) |
|
{ |
|
|
if (frame->quant < codec->config.min_iquant) |
|
|
{ |
|
|
frame->quant = codec->config.min_iquant; |
|
|
DEBUG2P("I-frame quantizer raised"); |
|
|
} |
|
|
if (frame->quant > codec->config.max_iquant) |
|
|
{ |
|
|
frame->quant = codec->config.max_iquant; |
|
|
DEBUG2P("I-frame quantizer lowered"); |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
if (frame->quant > codec->config.max_pquant) |
|
|
{ |
|
|
frame->quant = codec->config.max_pquant; |
|
|
} |
|
|
if (frame->quant < codec->config.min_pquant) |
|
|
{ |
|
|
frame->quant = codec->config.min_pquant; |
|
|
} |
|
1034 |
|
|
|
// subsequent frame quants can only be +- 2 |
|
|
if (last_quant) |
|
1035 |
{ |
{ |
|
if (frame->quant > last_quant + 2) |
|
|
{ |
|
|
frame->quant = last_quant + 2; |
|
|
DEBUG2P("P-frame quantizer prevented from rising too steeply"); |
|
|
} |
|
|
if (frame->quant < last_quant - 2) |
|
|
{ |
|
|
frame->quant = last_quant - 2; |
|
|
DEBUG2P("P-frame quantizer prevented from falling too steeply"); |
|
|
} |
|
|
} |
|
|
} |
|
1036 |
|
|
1037 |
last_quant = frame->quant; |
if ((frame->general && XVID_GREYSCALE)) // use only if not already in greyscale |
1038 |
|
|
1039 |
if (codec->config.quant_type == QUANT_MODE_MOD) |
frame->general |= XVID_GREYSCALE; |
|
{ |
|
|
frame->general |= (frame->quant < 4) ? XVID_MPEGQUANT : XVID_H263QUANT; |
|
|
frame->general &= (frame->quant < 4) ? ~XVID_H263QUANT : ~XVID_MPEGQUANT; |
|
|
} |
|
1040 |
|
|
1041 |
return ICERR_OK; |
} else { |
|
} |
|
1042 |
|
|
1043 |
|
if (!(frame->general && XVID_GREYSCALE)) // if movie is in greyscale, switch back |
1044 |
|
|
1045 |
int codec_2pass_update(CODEC* codec, XVID_ENC_FRAME* frame, XVID_ENC_STATS* stats) |
frame->general |= XVID_GREYSCALE; |
|
{ |
|
|
static __int64 total_size; |
|
1046 |
|
|
|
NNSTATS nns1; |
|
|
DWORD wrote; |
|
|
char* quant_type; |
|
|
|
|
|
if (codec->framenum == 0) |
|
|
{ |
|
|
total_size = 0; |
|
1047 |
} |
} |
1048 |
|
|
1049 |
quant_type = (frame->general & XVID_H263QUANT) ? "H.263" : |
} else { |
|
((frame->general & XVID_MPEGQUANT) && (frame->general & XVID_CUSTOM_QMATRIX)) ? |
|
|
"Cust" : "MPEG"; |
|
|
|
|
|
switch (codec->config.mode) |
|
|
{ |
|
|
case DLG_MODE_2PASS_1 : |
|
|
nns1.bytes = frame->length; // total bytes |
|
|
nns1.dd_v = stats->hlength; // header bytes |
|
1050 |
|
|
1051 |
nns1.dd_u = nns1.dd_y = 0; |
if (config->greyscale) |
|
nns1.dk_v = nns1.dk_u = nns1.dk_y = 0; |
|
|
nns1.md_u = nns1.md_y = 0; |
|
|
nns1.mk_u = nns1.mk_y = 0; |
|
1052 |
|
|
|
nns1.quant = stats->quant; |
|
|
if (frame->intra) |
|
1053 |
{ |
{ |
|
nns1.quant |= NNSTATS_KEYFRAME; |
|
|
} |
|
|
nns1.kblk = stats->kblks; |
|
|
nns1.mblk = stats->mblks; |
|
|
nns1.ublk = stats->ublks; |
|
|
nns1.lum_noise[0] = nns1.lum_noise[1] = 1; |
|
|
|
|
|
total_size += frame->length; |
|
1054 |
|
|
1055 |
DEBUG1ST(frame->length, (int)total_size/1024, frame->intra, frame->quant, quant_type, stats->kblks, stats->mblks) |
if ((frame->general && XVID_GREYSCALE)) // use only if not already in greyscale |
1056 |
|
|
1057 |
if (WriteFile(codec->twopass.stats1, &nns1, sizeof(NNSTATS), &wrote, 0) == 0 || wrote != sizeof(NNSTATS)) |
frame->general |= XVID_GREYSCALE; |
|
{ |
|
|
DEBUG("stats1: WriteFile error"); |
|
|
return ICERR_ERROR; |
|
|
} |
|
|
break; |
|
|
|
|
|
case DLG_MODE_2PASS_2_INT : |
|
|
case DLG_MODE_2PASS_2_EXT : |
|
|
codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length; |
|
|
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)) |
|
|
break; |
|
1058 |
|
|
1059 |
default: |
} else { |
|
break; |
|
|
} |
|
1060 |
|
|
1061 |
return ICERR_OK; |
if (!(frame->general && XVID_GREYSCALE)) // if credits is in greyscale, switch back |
|
} |
|
1062 |
|
|
1063 |
|
frame->general |= XVID_GREYSCALE; |
1064 |
|
|
|
int codec_is_in_credits(CONFIG* config, int framenum) |
|
|
{ |
|
|
if (config->credits_start) |
|
|
{ |
|
|
if (framenum >= config->credits_start_begin && |
|
|
framenum <= config->credits_start_end) |
|
|
{ |
|
|
return CREDITS_START; |
|
|
} |
|
1065 |
} |
} |
1066 |
|
|
|
if (config->credits_end) |
|
|
{ |
|
|
if (framenum >= config->credits_end_begin && |
|
|
framenum <= config->credits_end_end) |
|
|
{ |
|
|
return CREDITS_END; |
|
|
} |
|
1067 |
} |
} |
1068 |
|
|
1069 |
return 0; |
return 0; |
|
} |
|
|
|
|
1070 |
|
|
|
int codec_get_vbr_quant(CONFIG* config, int quality) |
|
|
{ |
|
|
static float fquant_running = 0; |
|
|
static int my_quality = -1; |
|
|
int quant; |
|
|
|
|
|
// if quality changes, recalculate fquant (credits) |
|
|
if (quality != my_quality) |
|
|
{ |
|
|
config->fquant = 0; |
|
|
} |
|
|
|
|
|
my_quality = quality; |
|
|
|
|
|
// desired quantiser = (maxQ-minQ)/100 * (100-qual) + minQ |
|
|
if (!config->fquant) |
|
|
{ |
|
|
config->fquant = |
|
|
((float) (config->max_pquant - config->min_pquant) / 100) * |
|
|
(100 - quality) + |
|
|
(float) config->min_pquant; |
|
|
|
|
|
fquant_running = config->fquant; |
|
1071 |
} |
} |
1072 |
|
|
1073 |
if (fquant_running < config->min_pquant) |
// end of koepi's addition |
|
{ |
|
|
fquant_running = (float) config->min_pquant; |
|
|
} |
|
|
else if(fquant_running > config->max_pquant) |
|
|
{ |
|
|
fquant_running = (float) config->max_pquant; |
|
|
} |
|
|
|
|
|
quant = (int) fquant_running; |
|
|
|
|
|
// add error between fquant and quant to fquant_running |
|
|
fquant_running += config->fquant - quant; |
|
|
|
|
|
return quant; |
|
|
} |
|
1074 |
|
|