20 |
* along with this program ; if not, write to the Free Software |
* along with this program ; if not, write to the Free Software |
21 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 |
* |
* |
23 |
* $Id: decoder.c,v 1.49.2.34 2004-02-29 12:57:58 edgomez Exp $ |
* $Id: decoder.c,v 1.49.2.35 2004-03-03 13:18:08 syskin Exp $ |
24 |
* |
* |
25 |
****************************************************************************/ |
****************************************************************************/ |
26 |
|
|
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); |
237 |
{ |
{ |
238 |
xvid_free(dec->last_mbs); |
xvid_free(dec->last_mbs); |
239 |
xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
240 |
|
xvid_free(dec->qscale); |
241 |
|
|
242 |
/* image based GMC */ |
/* image based GMC */ |
243 |
image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
761 |
mv.y -= range; |
mv.y -= range; |
762 |
} |
} |
763 |
|
|
764 |
|
/* clip to valid range */ |
765 |
|
|
766 |
|
if (mv.x > ((int)(dec->mb_width - x) << (5 + dec->quarterpel)) ) |
767 |
|
mv.x = (int)(dec->mb_width - x) << (5 + dec->quarterpel); |
768 |
|
|
769 |
|
else if (mv.x < (int)(-x-1) << (5 + dec->quarterpel)) |
770 |
|
mv.x = (int)(-x-1) << (5 + dec->quarterpel); |
771 |
|
|
772 |
|
if (mv.y > ((int)(dec->mb_height - y) << (5 + dec->quarterpel)) ) |
773 |
|
mv.y = (int)(dec->mb_height - y) << (5 + dec->quarterpel); |
774 |
|
|
775 |
|
else if (mv.y < ((int)(-y-1)) << (5 + dec->quarterpel) ) |
776 |
|
mv.y = (int)(-y-1) << (5 + dec->quarterpel); |
777 |
|
|
778 |
ret_mv->x = mv.x; |
ret_mv->x = mv.x; |
779 |
ret_mv->y = mv.y; |
ret_mv->y = mv.y; |
780 |
} |
} |
961 |
get_b_motion_vector(Bitstream * bs, |
get_b_motion_vector(Bitstream * bs, |
962 |
VECTOR * mv, |
VECTOR * mv, |
963 |
int fcode, |
int fcode, |
964 |
const VECTOR pmv) |
const VECTOR pmv, |
965 |
|
const DECODER * const dec, |
966 |
|
const int x, const int y) |
967 |
{ |
{ |
968 |
const int scale_fac = 1 << (fcode - 1); |
const int scale_fac = 1 << (fcode - 1); |
969 |
const int high = (32 * scale_fac) - 1; |
const int high = (32 * scale_fac) - 1; |
986 |
else if (mv_y > high) |
else if (mv_y > high) |
987 |
mv_y -= range; |
mv_y -= range; |
988 |
|
|
989 |
|
|
990 |
|
/* clip to valid range */ |
991 |
|
if (mv_x > ((int)(dec->mb_width - x) << (5 + dec->quarterpel)) ) |
992 |
|
mv_x = (int)(dec->mb_width - x) << (5 + dec->quarterpel); |
993 |
|
|
994 |
|
else if (mv_x < (int)(-x-1) << (5 + dec->quarterpel)) |
995 |
|
mv_x = (int)(-x-1) << (5 + dec->quarterpel); |
996 |
|
|
997 |
|
if (mv_y > ((int)(dec->mb_height - y) << (5 + dec->quarterpel)) ) |
998 |
|
mv_y = (int)(dec->mb_height - y) << (5 + dec->quarterpel); |
999 |
|
|
1000 |
|
else if (mv_y < ((int)(-y-1)) << (5 + dec->quarterpel) ) |
1001 |
|
mv_y = (int)(-y-1) << (5 + dec->quarterpel); |
1002 |
|
|
1003 |
mv->x = mv_x; |
mv->x = mv_x; |
1004 |
mv->y = mv_y; |
mv->y = mv_y; |
1005 |
} |
} |
1092 |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1093 |
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, |
1094 |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1095 |
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, |
1096 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1097 |
} |
} |
1098 |
|
|
1099 |
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, |
1306 |
|
|
1307 |
switch (mb->mode) { |
switch (mb->mode) { |
1308 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1309 |
get_b_motion_vector(bs, &mv, 1, zeromv); |
get_b_motion_vector(bs, &mv, 1, zeromv, dec, x, y); |
1310 |
|
|
1311 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1312 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1325 |
break; |
break; |
1326 |
|
|
1327 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1328 |
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); |
1329 |
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]; |
1330 |
|
|
1331 |
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); |
1332 |
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]; |
1333 |
|
|
1334 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1336 |
break; |
break; |
1337 |
|
|
1338 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1339 |
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); |
1340 |
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]; |
1341 |
|
|
1342 |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
1343 |
break; |
break; |
1344 |
|
|
1345 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1346 |
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); |
1347 |
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]; |
1348 |
|
|
1349 |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
1382 |
stats->type = coding2type(coding_type); |
stats->type = coding2type(coding_type); |
1383 |
stats->data.vop.time_base = (int)dec->time_base; |
stats->data.vop.time_base = (int)dec->time_base; |
1384 |
stats->data.vop.time_increment = 0; /* XXX: todo */ |
stats->data.vop.time_increment = 0; /* XXX: todo */ |
1385 |
|
stats->data.vop.qscale_stride = dec->mb_width; |
1386 |
|
stats->data.vop.qscale = dec->qscale; |
1387 |
|
if (stats->data.vop.qscale != NULL && mbs != NULL) { |
1388 |
|
int i; |
1389 |
|
for (i = 0; i < dec->mb_width*dec->mb_height; i++) |
1390 |
|
stats->data.vop.qscale[i] = mbs[i].quant; |
1391 |
|
} else |
1392 |
|
stats->data.vop.qscale = NULL; |
1393 |
} |
} |
1394 |
} |
} |
1395 |
|
|
1402 |
Bitstream bs; |
Bitstream bs; |
1403 |
uint32_t rounding; |
uint32_t rounding; |
1404 |
uint32_t reduced_resolution; |
uint32_t reduced_resolution; |
1405 |
uint32_t quant; |
uint32_t quant = 2; |
1406 |
uint32_t fcode_forward; |
uint32_t fcode_forward; |
1407 |
uint32_t fcode_backward; |
uint32_t fcode_backward; |
1408 |
uint32_t intra_dc_threshold; |
uint32_t intra_dc_threshold; |