32 |
* |
* |
33 |
* History: |
* History: |
34 |
* |
* |
35 |
|
* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
36 |
|
* MinChen <chenm001@163.com> |
37 |
|
* 10.07.2002 added BFRAMES_DEC_DEBUG support |
38 |
|
* Fix a little bug for low_delay flage |
39 |
|
* MinChen <chenm001@163.com> |
40 |
* 28.06.2002 added basic resync support to iframe/pframe_decode() |
* 28.06.2002 added basic resync support to iframe/pframe_decode() |
41 |
* 22.06.2002 added primative N_VOP support |
* 22.06.2002 added primative N_VOP support |
42 |
* #define BFRAMES_DEC now enables Minchenm's bframe decoder |
* #define BFRAMES_DEC now enables Minchen's bframe decoder |
43 |
* 08.05.2002 add low_delay support for B_VOP decode |
* 08.05.2002 add low_delay support for B_VOP decode |
44 |
* MinChen <chenm001@163.com> |
* MinChen <chenm001@163.com> |
45 |
* 05.05.2002 fix some B-frame decode problem |
* 05.05.2002 fix some B-frame decode problem |
62 |
#include <stdlib.h> |
#include <stdlib.h> |
63 |
#include <string.h> |
#include <string.h> |
64 |
|
|
65 |
|
#ifdef BFRAMES_DEC_DEBUG |
66 |
|
#define BFRAMES_DEC |
67 |
|
#endif |
68 |
|
|
69 |
#include "xvid.h" |
#include "xvid.h" |
70 |
#include "portab.h" |
#include "portab.h" |
71 |
|
|
348 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
349 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
350 |
|
|
351 |
|
if (dec->quarterpel) |
352 |
|
{ |
353 |
|
uv_dx = (uv_dx >> 1) | (uv_dx & 1); |
354 |
|
uv_dy = (uv_dy >> 1) | (uv_dy & 1); |
355 |
|
} |
356 |
|
|
357 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
358 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
359 |
} else { |
} else { |
360 |
int sum; |
int sum; |
|
|
|
361 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
362 |
uv_dx = |
|
363 |
(sum == |
if (dec->quarterpel) |
364 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
365 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
366 |
|
} |
367 |
|
|
368 |
|
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
369 |
|
|
370 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
371 |
uv_dy = |
|
372 |
(sum == |
if (dec->quarterpel) |
373 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
374 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
375 |
|
} |
376 |
|
|
377 |
|
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
378 |
} |
} |
379 |
|
|
380 |
start_timer(); |
start_timer(); |
381 |
|
if(dec->quarterpel) { |
382 |
|
DEBUG("QUARTERPEL"); |
383 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
384 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
385 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
386 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
387 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
388 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
389 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
390 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
391 |
|
} |
392 |
|
else { |
393 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
394 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
395 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
396 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
397 |
rounding); |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
398 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
399 |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
400 |
rounding); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
401 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
} |
402 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
|
|
rounding); |
|
403 |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
404 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
405 |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
502 |
} |
} |
503 |
} |
} |
504 |
mb->quant = quant; |
mb->quant = quant; |
505 |
|
mb->mvs[0].x = mb->mvs[0].y = |
506 |
|
mb->mvs[1].x = mb->mvs[1].y = |
507 |
|
mb->mvs[2].x = mb->mvs[2].y = |
508 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
509 |
|
|
510 |
if (dec->interlacing) { |
if (dec->interlacing) { |
511 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
515 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
516 |
intra_dc_threshold, bound); |
intra_dc_threshold, bound); |
517 |
} |
} |
518 |
|
if(dec->out_frm) |
519 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,dec->mb_width); |
520 |
|
|
521 |
} |
} |
522 |
|
|
523 |
} |
} |
581 |
|
|
582 |
uint32_t x, y; |
uint32_t x, y; |
583 |
uint32_t bound; |
uint32_t bound; |
584 |
|
int cp_mb, st_mb; |
585 |
|
|
586 |
start_timer(); |
start_timer(); |
587 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
591 |
bound = 0; |
bound = 0; |
592 |
|
|
593 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
594 |
|
cp_mb = st_mb = 0; |
595 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
596 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
597 |
|
|
619 |
uint32_t cbp; |
uint32_t cbp; |
620 |
uint32_t intra; |
uint32_t intra; |
621 |
|
|
622 |
|
cp_mb++; |
623 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
624 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
625 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
746 |
dec->refn[0].v + |
dec->refn[0].v + |
747 |
(8 * y) * dec->edged_width / 2 + (8 * x), |
(8 * y) * dec->edged_width / 2 + (8 * x), |
748 |
dec->edged_width / 2); |
dec->edged_width / 2); |
|
|
|
749 |
stop_transfer_timer(); |
stop_transfer_timer(); |
750 |
|
if(dec->out_frm && cp_mb > 0) { |
751 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
752 |
|
cp_mb = 0; |
753 |
|
} |
754 |
|
st_mb = x+1; |
755 |
} |
} |
756 |
} |
} |
757 |
|
if(dec->out_frm && cp_mb > 0) |
758 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
759 |
} |
} |
760 |
} |
} |
761 |
|
|
833 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
834 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
835 |
|
|
836 |
|
|
837 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
838 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
839 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
927 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
928 |
const uint32_t x_pos, |
const uint32_t x_pos, |
929 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
930 |
Bitstream * bs) |
Bitstream * bs) |
931 |
{ |
{ |
932 |
|
|
941 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
942 |
uint32_t i; |
uint32_t i; |
943 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
944 |
|
const uint32_t cbp = pMB->cbp; |
945 |
|
|
946 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
947 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
948 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
949 |
|
|
950 |
|
|
951 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
952 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
953 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1037 |
stride2); |
stride2); |
1038 |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
1039 |
stride2); |
stride2); |
|
|
|
1040 |
stop_comp_timer(); |
stop_comp_timer(); |
1041 |
|
|
1042 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1127 |
int fcode_forward, |
int fcode_forward, |
1128 |
int fcode_backward) |
int fcode_backward) |
1129 |
{ |
{ |
|
|
|
1130 |
uint32_t x, y; |
uint32_t x, y; |
1131 |
VECTOR mv, zeromv; |
VECTOR mv; |
1132 |
|
const VECTOR zeromv = {0,0}; |
1133 |
|
#ifdef BFRAMES_DEC_DEBUG |
1134 |
|
FILE *fp; |
1135 |
|
static char first=0; |
1136 |
|
#define BFRAME_DEBUG if (!first && fp){ \ |
1137 |
|
fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ |
1138 |
|
} |
1139 |
|
#endif |
1140 |
|
|
1141 |
start_timer(); |
start_timer(); |
1142 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1143 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height, dec->interlacing); |
1144 |
//image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1145 |
|
dec->width, dec->height, dec->interlacing); |
1146 |
stop_edges_timer(); |
stop_edges_timer(); |
1147 |
|
|
1148 |
|
#ifdef BFRAMES_DEC_DEBUG |
1149 |
|
if (!first){ |
1150 |
|
fp=fopen("C:\\XVIDDBG.TXT","w"); |
1151 |
|
} |
1152 |
|
#endif |
1153 |
|
|
1154 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1155 |
// Initialize Pred Motion Vector |
// Initialize Pred Motion Vector |
1156 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1157 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1158 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1159 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1160 |
|
|
1161 |
mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = |
mv = |
1162 |
0; |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1163 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1164 |
|
|
1165 |
// the last P_VOP is skip macroblock ? |
// the last P_VOP is skip macroblock ? |
1166 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1167 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
|
mb->mb_type = MODE_FORWARD; |
|
1168 |
mb->cbp = 0; |
mb->cbp = 0; |
1169 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
#ifdef BFRAMES_DEC_DEBUG |
1170 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mb_type = MODE_NOT_CODED; |
1171 |
mb->quant = 8; |
BFRAME_DEBUG |
1172 |
|
#endif |
1173 |
|
mb->mb_type = MODE_FORWARD; |
1174 |
|
mb->quant = last_mb->quant; |
1175 |
|
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1176 |
|
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1177 |
|
|
1178 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1179 |
continue; |
continue; |
1180 |
} |
} |
|
//t=BitstreamShowBits(bs,32); |
|
1181 |
|
|
1182 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { // modb=='0' |
1183 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1197 |
} else if (quant < 1) { |
} else if (quant < 1) { |
1198 |
quant = 1; |
quant = 1; |
1199 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1200 |
} |
} |
|
mb->quant = quant; |
|
1201 |
} else { |
} else { |
1202 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1203 |
mb->cbp = 0; |
mb->cbp = 0; |
1204 |
} |
} |
1205 |
|
|
1206 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1207 |
|
mb->mode = MODE_INTER4V; |
1208 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
//DEBUG1("Switch bm_type=",mb->mb_type); |
1209 |
|
|
1210 |
|
#ifdef BFRAMES_DEC_DEBUG |
1211 |
|
BFRAME_DEBUG |
1212 |
|
#endif |
1213 |
|
|
1214 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1215 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1216 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1217 |
|
|
1218 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1219 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1220 |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
|
dec->time_pp; |
|
1221 |
int i; |
int i; |
1222 |
|
|
1223 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1224 |
mb->mvs[i].x = |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1225 |
(int32_t) ((TRB * last_mb->mvs[i].x) / TRD + |
/ TRD + mv.x); |
1226 |
mb->mvs[0].x); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1227 |
mb->b_mvs[i].x = |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1228 |
(int32_t) ((mb->mvs[0].x == |
/ TRD |
1229 |
0) ? ((TRB - |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1230 |
TRD) * last_mb->mvs[i].x) / |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1231 |
TRD : mb->mvs[i].x - last_mb->mvs[i].x); |
/ TRD + mv.y); |
1232 |
mb->mvs[i].y = |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1233 |
(int32_t) ((TRB * last_mb->mvs[i].y) / TRD + |
? ((TRB - TRD) * last_mb->mvs[i].y) |
1234 |
mb->mvs[0].y); |
/ TRD |
1235 |
mb->b_mvs[i].y = |
: mb->mvs[i].y - last_mb->mvs[i].y); |
|
(int32_t) ((mb->mvs[0].y == |
|
|
0) ? ((TRB - |
|
|
TRD) * last_mb->mvs[i].y) / |
|
|
TRD : mb->mvs[i].y - last_mb->mvs[i].y); |
|
1236 |
} |
} |
1237 |
//DEBUG("B-frame Direct!\n"); |
//DEBUG("B-frame Direct!\n"); |
1238 |
} |
} |
|
mb->mode = MODE_INTER4V; |
|
1239 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1240 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1241 |
break; |
break; |
1242 |
|
|
1243 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1244 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1245 |
dec->p_fmv); |
dec->p_fmv); |
1246 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1247 |
|
|
1248 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1249 |
fcode_backward, dec->p_bmv); |
fcode_backward, dec->p_bmv); |
1250 |
dec->p_bmv.x = mb->b_mvs[1].x = mb->b_mvs[2].x = |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1251 |
mb->b_mvs[3].x = mb->b_mvs[0].x; |
mb->b_mvs[3] = mb->b_mvs[0]; |
|
dec->p_bmv.y = mb->b_mvs[1].y = mb->b_mvs[2].y = |
|
|
mb->b_mvs[3].y = mb->b_mvs[0].y; |
|
1252 |
|
|
1253 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1254 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1255 |
//DEBUG("B-frame Bidir!\n"); |
//DEBUG("B-frame Bidir!\n"); |
1256 |
break; |
break; |
1257 |
|
|
1258 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1259 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1260 |
dec->p_bmv); |
dec->p_bmv); |
1261 |
dec->p_bmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_bmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1262 |
|
|
1263 |
|
mb->mode = MODE_INTER; |
1264 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1265 |
//DEBUG("B-frame Backward!\n"); |
//DEBUG("B-frame Backward!\n"); |
1266 |
break; |
break; |
1268 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1269 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1270 |
dec->p_fmv); |
dec->p_fmv); |
1271 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1272 |
|
|
1273 |
|
mb->mode = MODE_INTER; |
1274 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1275 |
//DEBUG("B-frame Forward!\n"); |
//DEBUG("B-frame Forward!\n"); |
1276 |
break; |
break; |
1277 |
|
|
1278 |
default: |
default: |
1279 |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
1280 |
|
; |
1281 |
|
} |
1282 |
|
|
1283 |
|
if ( (x==19) && (y==8) ) |
1284 |
|
{ |
1285 |
|
fprintf(stderr,"D %d %d %d %d %d %d \n",0, mb->mb_type, |
1286 |
|
mb->mvs[0].x, mb->mvs[0].y,mb->b_mvs[0].x, mb->b_mvs[0].y ); |
1287 |
} |
} |
1288 |
|
|
1289 |
|
|
1290 |
|
|
1291 |
} // end of FOR |
} // end of FOR |
1292 |
} |
} |
1293 |
|
#ifdef BFRAMES_DEC_DEBUG |
1294 |
|
if (!first){ |
1295 |
|
first=1; |
1296 |
|
if (fp) |
1297 |
|
fclose(fp); |
1298 |
|
} |
1299 |
|
#endif |
1300 |
} |
} |
1301 |
|
|
1302 |
// swap two MACROBLOCK array |
// swap two MACROBLOCK array |
1325 |
|
|
1326 |
start_global_timer(); |
start_global_timer(); |
1327 |
|
|
1328 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1329 |
|
|
1330 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1331 |
|
|
1332 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1376 |
return XVID_ERR_FAIL; |
return XVID_ERR_FAIL; |
1377 |
} |
} |
1378 |
|
|
1379 |
|
#ifdef BFRAMES_DEC_DEBUG |
1380 |
|
if (frame->length != BitstreamPos(&bs) / 8){ |
1381 |
|
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
1382 |
|
} |
1383 |
|
#endif |
1384 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |
1385 |
|
|
1386 |
|
|
1387 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1388 |
// test if no B_VOP |
// test if no B_VOP |
1389 |
if (dec->low_delay) { |
if (dec->low_delay) { |
1390 |
#endif |
#endif |
1391 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1392 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1393 |
|
|
1394 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1395 |
} else { |
} else { |
1396 |
if (dec->frames >= 1) { |
if (dec->frames >= 0) { |
1397 |
start_timer(); |
start_timer(); |
1398 |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
1399 |
image_output(&dec->refn[0], dec->width, dec->height, |
image_output(&dec->refn[0], dec->width, dec->height, |
1412 |
if (vop_type == I_VOP || vop_type == P_VOP) { |
if (vop_type == I_VOP || vop_type == P_VOP) { |
1413 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1414 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1415 |
|
|
1416 |
// swap MACROBLOCK |
// swap MACROBLOCK |
1417 |
if (dec->low_delay && vop_type == P_VOP) |
// the Divx will not set the low_delay flage some times |
1418 |
|
// so follow code will wrong to not swap at that time |
1419 |
|
// this will broken bitstream! so I'm change it, |
1420 |
|
// But that is not the best way! can anyone tell me how |
1421 |
|
// to do another way? |
1422 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1423 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1424 |
|
if (vop_type == P_VOP) |
1425 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1426 |
} |
} |
1427 |
|
|