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 |
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; |
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dec->time_inc_resolution = 1; /* until VOL header says otherwise */ |
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225 |
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|
226 |
dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
227 |
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|
338 |
stop_coding_timer(); |
stop_coding_timer(); |
339 |
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|
340 |
start_timer(); |
start_timer(); |
341 |
add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors, dec->bs_version); |
add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors); |
342 |
stop_prediction_timer(); |
stop_prediction_timer(); |
343 |
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|
344 |
start_timer(); |
start_timer(); |
459 |
stop_transfer_timer(); |
stop_transfer_timer(); |
460 |
} |
} |
461 |
|
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static void __inline |
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validate_vector(VECTOR * mv, unsigned int x_pos, unsigned int y_pos, const DECODER * dec) |
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{ |
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/* clip a vector to valid range |
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prevents crashes if bitstream is broken |
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*/ |
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int shift = 5 + dec->quarterpel; |
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int xborder_high = (int)(dec->mb_width - x_pos) << shift; |
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int xborder_low = (-(int)x_pos-1) << shift; |
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int yborder_high = (int)(dec->mb_height - y_pos) << shift; |
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int yborder_low = (-(int)y_pos-1) << shift; |
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#define CHECK_MV(mv) \ |
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do { \ |
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if ((mv).x > xborder_high) { \ |
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DPRINTF(XVID_DEBUG_MV, "mv.x > max -- %d > %d, MB %d, %d", (mv).x, xborder_high, x_pos, y_pos); \ |
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(mv).x = xborder_high; \ |
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} else if ((mv).x < xborder_low) { \ |
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DPRINTF(XVID_DEBUG_MV, "mv.x < min -- %d < %d, MB %d, %d", (mv).x, xborder_low, x_pos, y_pos); \ |
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(mv).x = xborder_low; \ |
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} \ |
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if ((mv).y > yborder_high) { \ |
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DPRINTF(XVID_DEBUG_MV, "mv.y > max -- %d > %d, MB %d, %d", (mv).y, yborder_high, x_pos, y_pos); \ |
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(mv).y = yborder_high; \ |
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} else if ((mv).y < yborder_low) { \ |
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DPRINTF(XVID_DEBUG_MV, "mv.y < min -- %d < %d, MB %d, %d", (mv).y, yborder_low, x_pos, y_pos); \ |
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(mv).y = yborder_low; \ |
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} \ |
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} while (0) |
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CHECK_MV(mv[0]); |
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CHECK_MV(mv[1]); |
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CHECK_MV(mv[2]); |
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CHECK_MV(mv[3]); |
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} |
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462 |
/* decode an inter macroblock */ |
/* decode an inter macroblock */ |
463 |
static void |
static void |
464 |
decoder_mbinter(DECODER * dec, |
decoder_mbinter(DECODER * dec, |
496 |
mv[i] = pMB->mvs[i]; |
mv[i] = pMB->mvs[i]; |
497 |
} |
} |
498 |
|
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validate_vector(mv, x_pos, y_pos, dec); |
|
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|
|
499 |
start_timer(); |
start_timer(); |
500 |
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501 |
if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ |
if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ |
761 |
mv.y -= range; |
mv.y -= range; |
762 |
} |
} |
763 |
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|
764 |
|
/* clip to valid range */ |
765 |
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766 |
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if (mv.x > ((int)(dec->mb_width - x) << (5 + dec->quarterpel)) ) |
767 |
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mv.x = (int)(dec->mb_width - x) << (5 + dec->quarterpel); |
768 |
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769 |
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else if (mv.x < (int)(-x-1) << (5 + dec->quarterpel)) |
770 |
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mv.x = (int)(-x-1) << (5 + dec->quarterpel); |
771 |
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772 |
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if (mv.y > ((int)(dec->mb_height - y) << (5 + dec->quarterpel)) ) |
773 |
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mv.y = (int)(dec->mb_height - y) << (5 + dec->quarterpel); |
774 |
|
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775 |
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else if (mv.y < ((int)(-y-1)) << (5 + dec->quarterpel) ) |
776 |
|
mv.y = (int)(-y-1) << (5 + dec->quarterpel); |
777 |
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|
778 |
ret_mv->x = mv.x; |
ret_mv->x = mv.x; |
779 |
ret_mv->y = mv.y; |
ret_mv->y = mv.y; |
780 |
} |
} |
986 |
else if (mv_y > high) |
else if (mv_y > high) |
987 |
mv_y -= range; |
mv_y -= range; |
988 |
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989 |
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990 |
|
/* clip to valid range */ |
991 |
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if (mv_x > ((int)(dec->mb_width - x) << (5 + dec->quarterpel)) ) |
992 |
|
mv_x = (int)(dec->mb_width - x) << (5 + dec->quarterpel); |
993 |
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994 |
|
else if (mv_x < (int)(-x-1) << (5 + dec->quarterpel)) |
995 |
|
mv_x = (int)(-x-1) << (5 + dec->quarterpel); |
996 |
|
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997 |
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if (mv_y > ((int)(dec->mb_height - y) << (5 + dec->quarterpel)) ) |
998 |
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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 |
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|
1003 |
mv->x = mv_x; |
mv->x = mv_x; |
1004 |
mv->y = mv_y; |
mv->y = mv_y; |
1005 |
} |
} |
1009 |
decoder_bf_interpolate_mbinter(DECODER * dec, |
decoder_bf_interpolate_mbinter(DECODER * dec, |
1010 |
IMAGE forward, |
IMAGE forward, |
1011 |
IMAGE backward, |
IMAGE backward, |
1012 |
MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
1013 |
const uint32_t x_pos, |
const uint32_t x_pos, |
1014 |
const uint32_t y_pos, |
const uint32_t y_pos, |
1015 |
Bitstream * bs, |
Bitstream * bs, |
1026 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
1027 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
1028 |
|
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validate_vector(pMB->mvs, x_pos, y_pos, dec); |
|
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validate_vector(pMB->b_mvs, x_pos, y_pos, dec); |
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|
1029 |
if (!direct) { |
if (!direct) { |
1030 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
1031 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1140 |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1141 |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1142 |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, |
1143 |
stride, 0, 8); |
stride, 1, 8); |
1144 |
|
|
1145 |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1146 |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1147 |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1148 |
stride, 0, 8); |
stride, 1, 8); |
1149 |
|
|
1150 |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1151 |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1152 |
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1153 |
stride, 0, 8); |
stride, 1, 8); |
1154 |
|
|
1155 |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1156 |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1157 |
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1158 |
stride, 0, 8); |
stride, 1, 8); |
1159 |
|
|
1160 |
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1161 |
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1162 |
dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, |
dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, |
1163 |
stride2, 0, 8); |
stride2, 1, 8); |
1164 |
|
|
1165 |
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1166 |
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1167 |
dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, |
dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, |
1168 |
stride2, 0, 8); |
stride2, 1, 8); |
1169 |
|
|
1170 |
stop_comp_timer(); |
stop_comp_timer(); |
1171 |
|
|
1215 |
uint32_t x, y; |
uint32_t x, y; |
1216 |
VECTOR mv; |
VECTOR mv; |
1217 |
const VECTOR zeromv = {0,0}; |
const VECTOR zeromv = {0,0}; |
1218 |
|
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
1219 |
int i; |
int i; |
1220 |
|
|
1221 |
start_timer(); |
start_timer(); |
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++) { |
1313 |
mb->mvs[i].x = last_mb->mvs[i].x*dec->time_bp/dec->time_pp + mv.x; |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) / TRD + mv.x); |
1314 |
mb->mvs[i].y = last_mb->mvs[i].y*dec->time_bp/dec->time_pp + mv.y; |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1315 |
|
? ((TRB - TRD) * last_mb->mvs[i].x) / TRD |
1316 |
mb->b_mvs[i].x = (mv.x) |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1317 |
? mb->mvs[i].x - last_mb->mvs[i].x |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) / TRD + mv.y); |
1318 |
: last_mb->mvs[i].x*(dec->time_bp - dec->time_pp)/dec->time_pp; |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1319 |
mb->b_mvs[i].y = (mv.y) |
? ((TRB - TRD) * last_mb->mvs[i].y) / TRD |
1320 |
? mb->mvs[i].y - last_mb->mvs[i].y |
: mb->mvs[i].y - last_mb->mvs[i].y); |
|
: last_mb->mvs[i].y*(dec->time_bp - dec->time_pp)/dec->time_pp; |
|
1321 |
} |
} |
1322 |
|
|
1323 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1364 |
if (dec->cartoon_mode) |
if (dec->cartoon_mode) |
1365 |
frame->general &= ~XVID_FILMEFFECT; |
frame->general &= ~XVID_FILMEFFECT; |
1366 |
|
|
1367 |
if (frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) && mbs != NULL) /* post process */ |
if ((frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) || frame->brightness!=0) |
1368 |
|
&& mbs != NULL) /* post process */ |
1369 |
{ |
{ |
1370 |
/* note: image is stored to tmp */ |
/* note: image is stored to tmp */ |
1371 |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
1372 |
image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
1373 |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
1374 |
frame->general, dec->frames, (coding_type == B_VOP)); |
frame->general, frame->brightness, dec->frames, (coding_type == B_VOP)); |
1375 |
img = &dec->tmp; |
img = &dec->tmp; |
1376 |
} |
} |
1377 |
|
|
1394 |
} |
} |
1395 |
} |
} |
1396 |
|
|
1397 |
|
|
1398 |
int |
int |
1399 |
decoder_decode(DECODER * dec, |
decoder_decode(DECODER * dec, |
1400 |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) |
1453 |
|
|
1454 |
success = 0; |
success = 0; |
1455 |
output = 0; |
output = 0; |
1456 |
|
if (stats) stats->type = XVID_TYPE_NOTHING; |
1457 |
seen_something = 0; |
seen_something = 0; |
1458 |
|
|
1459 |
repeat: |
repeat: |
1492 |
goto repeat; |
goto repeat; |
1493 |
} |
} |
1494 |
|
|
|
if(dec->frames == 0 && coding_type != I_VOP) { |
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/* 1st frame is not an i-vop */ |
|
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goto repeat; |
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} |
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|
1495 |
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 */ |
1496 |
|
|
1497 |
/* packed_mode: special-N_VOP treament */ |
/* packed_mode: special-N_VOP treament */ |
1553 |
|
|
1554 |
if (dec->low_delay) { |
if (dec->low_delay) { |
1555 |
DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); |
DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); |
1556 |
dec->low_delay = 0; |
dec->low_delay = 1; |
1557 |
} |
} |
1558 |
|
|
1559 |
if (dec->frames < 2) { |
if (dec->frames < 2) { |