4 |
* - Decoder Module - |
* - Decoder Module - |
5 |
* |
* |
6 |
* Copyright(C) 2002 MinChen <chenm001@163.com> |
* Copyright(C) 2002 MinChen <chenm001@163.com> |
7 |
* 2002-2003 Peter Ross <pross@xvid.org> |
* 2002-2004 Peter Ross <pross@xvid.org> |
8 |
* |
* |
9 |
* This program is free software ; you can redistribute it and/or modify |
* This program is free software ; you can redistribute it and/or modify |
10 |
* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
77 |
xvid_free(dec->last_mbs); |
xvid_free(dec->last_mbs); |
78 |
if (dec->mbs) |
if (dec->mbs) |
79 |
xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
80 |
|
if (dec->qscale) |
81 |
|
xvid_free(dec->qscale); |
82 |
|
|
83 |
/* realloc */ |
/* realloc */ |
84 |
dec->mb_width = (dec->width + 15) / 16; |
dec->mb_width = (dec->width + 15) / 16; |
163 |
|
|
164 |
memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
165 |
|
|
166 |
|
/* nothing happens if that fails */ |
167 |
|
dec->qscale = |
168 |
|
xvid_malloc(sizeof(int) * dec->mb_width * dec->mb_height, CACHE_LINE); |
169 |
|
|
170 |
|
if (dec->qscale) |
171 |
|
memset(dec->qscale, 0, sizeof(int) * dec->mb_width * dec->mb_height); |
172 |
|
|
173 |
return 0; |
return 0; |
174 |
} |
} |
175 |
|
|
209 |
/* image based GMC */ |
/* image based GMC */ |
210 |
image_null(&dec->gmc); |
image_null(&dec->gmc); |
211 |
|
|
|
|
|
212 |
dec->mbs = NULL; |
dec->mbs = NULL; |
213 |
dec->last_mbs = NULL; |
dec->last_mbs = NULL; |
214 |
|
dec->qscale = NULL; |
215 |
|
|
216 |
init_timer(); |
init_timer(); |
217 |
init_postproc(&dec->postproc); |
init_postproc(&dec->postproc); |
222 |
dec->time = dec->time_base = dec->last_time_base = 0; |
dec->time = dec->time_base = dec->last_time_base = 0; |
223 |
dec->low_delay = 0; |
dec->low_delay = 0; |
224 |
dec->packed_mode = 0; |
dec->packed_mode = 0; |
225 |
|
dec->time_inc_resolution = 1; /* until VOL header says otherwise */ |
226 |
|
|
227 |
dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
228 |
|
|
238 |
{ |
{ |
239 |
xvid_free(dec->last_mbs); |
xvid_free(dec->last_mbs); |
240 |
xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
241 |
|
xvid_free(dec->qscale); |
242 |
|
|
243 |
/* image based GMC */ |
/* image based GMC */ |
244 |
image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
339 |
stop_coding_timer(); |
stop_coding_timer(); |
340 |
|
|
341 |
start_timer(); |
start_timer(); |
342 |
add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors); |
add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors, dec->bs_version); |
343 |
stop_prediction_timer(); |
stop_prediction_timer(); |
344 |
|
|
345 |
start_timer(); |
start_timer(); |
497 |
mv[i] = pMB->mvs[i]; |
mv[i] = pMB->mvs[i]; |
498 |
} |
} |
499 |
|
|
500 |
|
for (i = 0; i < 4; i++) { |
501 |
|
/* clip to valid range */ |
502 |
|
int border = (int)(dec->mb_width - x_pos) << (5 + dec->quarterpel); |
503 |
|
if (mv[i].x > border) { |
504 |
|
DPRINTF(XVID_DEBUG_MV, "mv.x > max -- %d > %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); |
505 |
|
mv[i].x = border; |
506 |
|
} else { |
507 |
|
border = (-(int)x_pos-1) << (5 + dec->quarterpel); |
508 |
|
if (mv[i].x < border) { |
509 |
|
DPRINTF(XVID_DEBUG_MV, "mv.x < min -- %d < %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); |
510 |
|
mv[i].x = border; |
511 |
|
} |
512 |
|
} |
513 |
|
|
514 |
|
border = (int)(dec->mb_height - y_pos) << (5 + dec->quarterpel); |
515 |
|
if (mv[i].y > border) { |
516 |
|
DPRINTF(XVID_DEBUG_MV, "mv.y > max -- %d > %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); |
517 |
|
mv[i].y = border; |
518 |
|
} else { |
519 |
|
border = (-(int)y_pos-1) << (5 + dec->quarterpel); |
520 |
|
if (mv[i].y < border) { |
521 |
|
DPRINTF(XVID_DEBUG_MV, "mv.y < min -- %d < %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); |
522 |
|
mv[i].y = border; |
523 |
|
} |
524 |
|
} |
525 |
|
} |
526 |
|
|
527 |
start_timer(); |
start_timer(); |
528 |
|
|
529 |
if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ |
if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ |
815 |
mb_height = (dec->height + 31) / 32; |
mb_height = (dec->height + 31) / 32; |
816 |
} |
} |
817 |
|
|
818 |
|
if (!dec->is_edged[0]) { |
819 |
start_timer(); |
start_timer(); |
820 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
821 |
dec->width, dec->height, dec->bs_version); |
dec->width, dec->height, dec->bs_version); |
822 |
|
dec->is_edged[0] = 1; |
823 |
stop_edges_timer(); |
stop_edges_timer(); |
824 |
|
} |
825 |
|
|
826 |
if (gmc_warp) { |
if (gmc_warp) { |
827 |
/* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
/* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
978 |
get_b_motion_vector(Bitstream * bs, |
get_b_motion_vector(Bitstream * bs, |
979 |
VECTOR * mv, |
VECTOR * mv, |
980 |
int fcode, |
int fcode, |
981 |
const VECTOR pmv) |
const VECTOR pmv, |
982 |
|
const DECODER * const dec, |
983 |
|
const int x, const int y) |
984 |
{ |
{ |
985 |
const int scale_fac = 1 << (fcode - 1); |
const int scale_fac = 1 << (fcode - 1); |
986 |
const int high = (32 * scale_fac) - 1; |
const int high = (32 * scale_fac) - 1; |
1095 |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1096 |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
1097 |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1098 |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos + 8, |
1099 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1100 |
} |
} |
1101 |
|
|
1102 |
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
1218 |
uint32_t x, y; |
uint32_t x, y; |
1219 |
VECTOR mv; |
VECTOR mv; |
1220 |
const VECTOR zeromv = {0,0}; |
const VECTOR zeromv = {0,0}; |
|
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
|
1221 |
int i; |
int i; |
1222 |
|
|
1223 |
|
if (!dec->is_edged[0]) { |
1224 |
start_timer(); |
start_timer(); |
1225 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1226 |
dec->width, dec->height, dec->bs_version); |
dec->width, dec->height, dec->bs_version); |
1227 |
|
dec->is_edged[0] = 1; |
1228 |
|
stop_edges_timer(); |
1229 |
|
} |
1230 |
|
|
1231 |
|
if (!dec->is_edged[1]) { |
1232 |
|
start_timer(); |
1233 |
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1234 |
dec->width, dec->height, dec->bs_version); |
dec->width, dec->height, dec->bs_version); |
1235 |
|
dec->is_edged[1] = 1; |
1236 |
stop_edges_timer(); |
stop_edges_timer(); |
1237 |
|
} |
1238 |
|
|
1239 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1240 |
/* Initialize Pred Motion Vector */ |
/* Initialize Pred Motion Vector */ |
1317 |
|
|
1318 |
switch (mb->mode) { |
switch (mb->mode) { |
1319 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1320 |
get_b_motion_vector(bs, &mv, 1, zeromv); |
get_b_motion_vector(bs, &mv, 1, zeromv, dec, x, y); |
1321 |
|
|
1322 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1323 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1324 |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) / TRD + mv.x); |
mb->mvs[i].x = last_mb->mvs[i].x*dec->time_bp/dec->time_pp + mv.x; |
1325 |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
mb->mvs[i].y = last_mb->mvs[i].y*dec->time_bp/dec->time_pp + mv.y; |
1326 |
? ((TRB - TRD) * last_mb->mvs[i].x) / TRD |
|
1327 |
: mb->mvs[i].x - last_mb->mvs[i].x); |
mb->b_mvs[i].x = (mv.x) |
1328 |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) / TRD + mv.y); |
? mb->mvs[i].x - last_mb->mvs[i].x |
1329 |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
: last_mb->mvs[i].x*(dec->time_bp - dec->time_pp)/dec->time_pp; |
1330 |
? ((TRB - TRD) * last_mb->mvs[i].y) / TRD |
mb->b_mvs[i].y = (mv.y) |
1331 |
: mb->mvs[i].y - last_mb->mvs[i].y); |
? mb->mvs[i].y - last_mb->mvs[i].y |
1332 |
|
: last_mb->mvs[i].y*(dec->time_bp - dec->time_pp)/dec->time_pp; |
1333 |
} |
} |
1334 |
|
|
1335 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1337 |
break; |
break; |
1338 |
|
|
1339 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1340 |
get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv); |
get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1341 |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1342 |
|
|
1343 |
get_b_motion_vector(bs, &mb->b_mvs[0], fcode_backward, dec->p_bmv); |
get_b_motion_vector(bs, &mb->b_mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1344 |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = mb->b_mvs[0]; |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = mb->b_mvs[0]; |
1345 |
|
|
1346 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1348 |
break; |
break; |
1349 |
|
|
1350 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1351 |
get_b_motion_vector(bs, &mb->mvs[0], fcode_backward, dec->p_bmv); |
get_b_motion_vector(bs, &mb->mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1352 |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1353 |
|
|
1354 |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
1355 |
break; |
break; |
1356 |
|
|
1357 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1358 |
get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv); |
get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1359 |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1360 |
|
|
1361 |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
1373 |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, |
1374 |
int coding_type, int quant) |
int coding_type, int quant) |
1375 |
{ |
{ |
1376 |
|
const int brightness = XVID_VERSION_MINOR(frame->version) >= 1 ? frame->brightness : 0; |
1377 |
|
|
1378 |
if (dec->cartoon_mode) |
if (dec->cartoon_mode) |
1379 |
frame->general &= ~XVID_FILMEFFECT; |
frame->general &= ~XVID_FILMEFFECT; |
1380 |
|
|
1381 |
if (frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) && mbs != NULL) /* post process */ |
if ((frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) || brightness!=0) |
1382 |
|
&& mbs != NULL) /* post process */ |
1383 |
{ |
{ |
1384 |
/* note: image is stored to tmp */ |
/* note: image is stored to tmp */ |
1385 |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
1386 |
image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
1387 |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
1388 |
frame->general, dec->frames, (coding_type == B_VOP)); |
frame->general, brightness, dec->frames, (coding_type == B_VOP)); |
1389 |
img = &dec->tmp; |
img = &dec->tmp; |
1390 |
} |
} |
1391 |
|
|
1397 |
stats->type = coding2type(coding_type); |
stats->type = coding2type(coding_type); |
1398 |
stats->data.vop.time_base = (int)dec->time_base; |
stats->data.vop.time_base = (int)dec->time_base; |
1399 |
stats->data.vop.time_increment = 0; /* XXX: todo */ |
stats->data.vop.time_increment = 0; /* XXX: todo */ |
1400 |
|
stats->data.vop.qscale_stride = dec->mb_width; |
1401 |
|
stats->data.vop.qscale = dec->qscale; |
1402 |
|
if (stats->data.vop.qscale != NULL && mbs != NULL) { |
1403 |
|
int i; |
1404 |
|
for (i = 0; i < dec->mb_width*dec->mb_height; i++) |
1405 |
|
stats->data.vop.qscale[i] = mbs[i].quant; |
1406 |
|
} else |
1407 |
|
stats->data.vop.qscale = NULL; |
1408 |
} |
} |
1409 |
} |
} |
1410 |
|
|
1417 |
Bitstream bs; |
Bitstream bs; |
1418 |
uint32_t rounding; |
uint32_t rounding; |
1419 |
uint32_t reduced_resolution; |
uint32_t reduced_resolution; |
1420 |
uint32_t quant; |
uint32_t quant = 2; |
1421 |
uint32_t fcode_forward; |
uint32_t fcode_forward; |
1422 |
uint32_t fcode_backward; |
uint32_t fcode_backward; |
1423 |
uint32_t intra_dc_threshold; |
uint32_t intra_dc_threshold; |
1505 |
goto repeat; |
goto repeat; |
1506 |
} |
} |
1507 |
|
|
1508 |
|
if(dec->frames == 0 && coding_type != I_VOP) { |
1509 |
|
/* 1st frame is not an i-vop */ |
1510 |
|
goto repeat; |
1511 |
|
} |
1512 |
|
|
1513 |
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
1514 |
|
|
1515 |
/* packed_mode: special-N_VOP treament */ |
/* packed_mode: special-N_VOP treament */ |
1559 |
} |
} |
1560 |
|
|
1561 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1562 |
|
dec->is_edged[1] = dec->is_edged[0]; |
1563 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1564 |
|
dec->is_edged[0] = 0; |
1565 |
SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); |
SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); |
1566 |
dec->last_reduced_resolution = reduced_resolution; |
dec->last_reduced_resolution = reduced_resolution; |
1567 |
dec->last_coding_type = coding_type; |
dec->last_coding_type = coding_type; |