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 |
* 10.07.2002 added BFRAMES_DEC_DEBUG support |
38 |
* Fix a little bug for low_delay flage |
* Fix a little bug for low_delay flage |
39 |
* MinChen <chenm001@163.com> |
* MinChen <chenm001@163.com> |
55 |
* 22.12.2001 lock based interpolation |
* 22.12.2001 lock based interpolation |
56 |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
57 |
* |
* |
58 |
* $Id: decoder.c,v 1.28 2002-07-12 00:49:59 chenm001 Exp $ |
* $Id: decoder.c,v 1.37 2002-09-04 03:23:23 h Exp $ |
59 |
* |
* |
60 |
*************************************************************************/ |
*************************************************************************/ |
61 |
|
|
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); |
653 |
mb->quant = quant; |
mb->quant = quant; |
654 |
|
|
655 |
if (dec->interlacing) { |
if (dec->interlacing) { |
656 |
|
if (cbp || intra) { |
657 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
658 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
659 |
|
} |
660 |
|
|
661 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
662 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
685 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
686 |
mb->mvs[0].y; |
mb->mvs[0].y; |
687 |
} |
} |
688 |
} else if (mb->mode == |
} else if (mb->mode == MODE_INTER4V ) { |
689 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
|
690 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
691 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
692 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
706 |
rounding); |
rounding); |
707 |
} else // not coded |
} else // not coded |
708 |
{ |
{ |
709 |
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
DEBUG2("P-frame MB at (X,Y)=",x,y); |
710 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
711 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
712 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
748 |
dec->refn[0].v + |
dec->refn[0].v + |
749 |
(8 * y) * dec->edged_width / 2 + (8 * x), |
(8 * y) * dec->edged_width / 2 + (8 * x), |
750 |
dec->edged_width / 2); |
dec->edged_width / 2); |
|
|
|
751 |
stop_transfer_timer(); |
stop_transfer_timer(); |
752 |
|
if(dec->out_frm && cp_mb > 0) { |
753 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
754 |
|
cp_mb = 0; |
755 |
|
} |
756 |
|
st_mb = x+1; |
757 |
} |
} |
758 |
} |
} |
759 |
|
if(dec->out_frm && cp_mb > 0) |
760 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
761 |
} |
} |
762 |
} |
} |
763 |
|
|
835 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
836 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
837 |
|
|
838 |
|
|
839 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
840 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
841 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
929 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
930 |
const uint32_t x_pos, |
const uint32_t x_pos, |
931 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
932 |
Bitstream * bs) |
Bitstream * bs) |
933 |
{ |
{ |
934 |
|
|
943 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
944 |
uint32_t i; |
uint32_t i; |
945 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
946 |
|
const uint32_t cbp = pMB->cbp; |
947 |
|
|
948 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
949 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
950 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
951 |
|
|
952 |
|
|
953 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
954 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
955 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1039 |
stride2); |
stride2); |
1040 |
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, |
1041 |
stride2); |
stride2); |
|
|
|
1042 |
stop_comp_timer(); |
stop_comp_timer(); |
1043 |
|
|
1044 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1129 |
int fcode_forward, |
int fcode_forward, |
1130 |
int fcode_backward) |
int fcode_backward) |
1131 |
{ |
{ |
|
|
|
1132 |
uint32_t x, y; |
uint32_t x, y; |
1133 |
VECTOR mv, zeromv; |
VECTOR mv; |
1134 |
|
const VECTOR zeromv = {0,0}; |
1135 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1136 |
FILE *fp; |
FILE *fp; |
1137 |
static char first=0; |
static char first=0; |
1143 |
start_timer(); |
start_timer(); |
1144 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1145 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height, dec->interlacing); |
1146 |
//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, |
1147 |
|
dec->width, dec->height, dec->interlacing); |
1148 |
stop_edges_timer(); |
stop_edges_timer(); |
1149 |
|
|
1150 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1155 |
|
|
1156 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1157 |
// Initialize Pred Motion Vector |
// Initialize Pred Motion Vector |
1158 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1159 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1160 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1161 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1162 |
|
|
1163 |
mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = 0; |
mv = |
1164 |
|
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1165 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1166 |
|
|
1167 |
// the last P_VOP is skip macroblock ? |
// the last P_VOP is skip macroblock ? |
1168 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1169 |
//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_NOT_CODED; |
|
1170 |
mb->cbp = 0; |
mb->cbp = 0; |
1171 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1172 |
|
mb->mb_type = MODE_NOT_CODED; |
1173 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1174 |
#endif |
#endif |
1175 |
mb->mb_type = MODE_FORWARD; |
mb->mb_type = MODE_FORWARD; |
1176 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
mb->quant = last_mb->quant; |
1177 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1178 |
mb->quant = 8; |
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1179 |
|
|
1180 |
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); |
1181 |
continue; |
continue; |
1182 |
} |
} |
|
//t=BitstreamShowBits(bs,32); |
|
1183 |
|
|
1184 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { // modb=='0' |
1185 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1199 |
} else if (quant < 1) { |
} else if (quant < 1) { |
1200 |
quant = 1; |
quant = 1; |
1201 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1202 |
} |
} |
|
mb->quant = quant; |
|
1203 |
} else { |
} else { |
1204 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1205 |
mb->cbp = 0; |
mb->cbp = 0; |
1206 |
} |
} |
1207 |
|
|
1208 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1209 |
|
mb->mode = MODE_INTER4V; |
1210 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
//DEBUG1("Switch bm_type=",mb->mb_type); |
1211 |
|
|
1212 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1213 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1214 |
#endif |
#endif |
1215 |
|
|
1216 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1217 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1218 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1219 |
|
|
1220 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1221 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1222 |
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; |
|
1223 |
int i; |
int i; |
1224 |
|
|
1225 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1226 |
mb->mvs[i].x = |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1227 |
(int32_t) ((TRB * last_mb->mvs[i].x) / TRD + |
/ TRD + mv.x); |
1228 |
mb->mvs[0].x); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1229 |
mb->b_mvs[i].x = |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1230 |
(int32_t) ((mb->mvs[0].x == |
/ TRD |
1231 |
0) ? ((TRB - |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1232 |
TRD) * last_mb->mvs[i].x) / |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1233 |
TRD : mb->mvs[i].x - last_mb->mvs[i].x); |
/ TRD + mv.y); |
1234 |
mb->mvs[i].y = |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1235 |
(int32_t) ((TRB * last_mb->mvs[i].y) / TRD + |
? ((TRB - TRD) * last_mb->mvs[i].y) |
1236 |
mb->mvs[0].y); |
/ TRD |
1237 |
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); |
|
1238 |
} |
} |
1239 |
//DEBUG("B-frame Direct!\n"); |
//DEBUG("B-frame Direct!\n"); |
1240 |
} |
} |
|
mb->mode = MODE_INTER4V; |
|
1241 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1242 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1243 |
break; |
break; |
1244 |
|
|
1245 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1246 |
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, |
1247 |
dec->p_fmv); |
dec->p_fmv); |
1248 |
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; |
|
1249 |
|
|
1250 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1251 |
fcode_backward, dec->p_bmv); |
fcode_backward, dec->p_bmv); |
1252 |
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] = |
1253 |
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; |
|
1254 |
|
|
1255 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1256 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1257 |
//DEBUG("B-frame Bidir!\n"); |
//DEBUG("B-frame Bidir!\n"); |
1258 |
break; |
break; |
1259 |
|
|
1260 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1261 |
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, |
1262 |
dec->p_bmv); |
dec->p_bmv); |
1263 |
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; |
|
1264 |
|
|
1265 |
|
mb->mode = MODE_INTER; |
1266 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1267 |
//DEBUG("B-frame Backward!\n"); |
//DEBUG("B-frame Backward!\n"); |
1268 |
break; |
break; |
1270 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1271 |
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, |
1272 |
dec->p_fmv); |
dec->p_fmv); |
1273 |
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; |
|
1274 |
|
|
1275 |
|
mb->mode = MODE_INTER; |
1276 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1277 |
//DEBUG("B-frame Forward!\n"); |
//DEBUG("B-frame Forward!\n"); |
1278 |
break; |
break; |
1279 |
|
|
1280 |
default: |
default: |
1281 |
//DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
|
; |
|
1282 |
} |
} |
1283 |
|
|
1284 |
} // end of FOR |
} // end of FOR |
1318 |
|
|
1319 |
start_global_timer(); |
start_global_timer(); |
1320 |
|
|
1321 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1322 |
|
|
1323 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1324 |
|
|
1325 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1379 |
|
|
1380 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1381 |
// test if no B_VOP |
// test if no B_VOP |
1382 |
if (dec->low_delay) { |
if (dec->low_delay || dec->frames == 0) { |
1383 |
#endif |
#endif |
1384 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1385 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1386 |
|
|
1387 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1388 |
} else { |
} else { |
1389 |
if (dec->frames >= 0) { |
if (dec->frames >= 1) { |
1390 |
start_timer(); |
start_timer(); |
1391 |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
1392 |
image_output(&dec->refn[0], dec->width, dec->height, |
image_output(&dec->refn[0], dec->width, dec->height, |
1405 |
if (vop_type == I_VOP || vop_type == P_VOP) { |
if (vop_type == I_VOP || vop_type == P_VOP) { |
1406 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1407 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1408 |
|
|
1409 |
// swap MACROBLOCK |
// swap MACROBLOCK |
1410 |
if (!dec->low_delay && vop_type == P_VOP) |
// the Divx will not set the low_delay flage some times |
1411 |
|
// so follow code will wrong to not swap at that time |
1412 |
|
// this will broken bitstream! so I'm change it, |
1413 |
|
// But that is not the best way! can anyone tell me how |
1414 |
|
// to do another way? |
1415 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1416 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1417 |
|
if (vop_type == P_VOP) |
1418 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1419 |
} |
} |
1420 |
|
|