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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - Decoder main module - |
* - Decoder main module - |
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* |
* |
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* This program is an implementation of a part of one or more MPEG-4 |
* Copyright(C) 2002 MinChen <chenm001@163.com> |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* 2002 Peter Ross <pross@xvid.org> |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* it under the terms of the GNU General Public License as published by |
* |
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* XviD is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
* (at your option) any later version. |
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* |
* |
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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
* Under section 8 of the GNU General Public License, the copyright |
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* holders of XVID explicitly forbid distribution in the following |
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/************************************************************************** |
* countries: |
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* |
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* - Japan |
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* - United States of America |
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* |
* |
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* History: |
* Linking XviD statically or dynamically with other modules is making a |
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* combined work based on XviD. Thus, the terms and conditions of the |
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* GNU General Public License cover the whole combination. |
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* |
* |
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* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
* As a special exception, the copyright holders of XviD give you |
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* MinChen <chenm001@163.com> |
* permission to link XviD with independent modules that communicate with |
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* 10.07.2002 added BFRAMES_DEC_DEBUG support |
* XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
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* Fix a little bug for low_delay flage |
* license terms of these independent modules, and to copy and distribute |
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* MinChen <chenm001@163.com> |
* the resulting combined work under terms of your choice, provided that |
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* 28.06.2002 added basic resync support to iframe/pframe_decode() |
* every copy of the combined work is accompanied by a complete copy of |
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* 22.06.2002 added primative N_VOP support |
* the source code of XviD (the version of XviD used to produce the |
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* #define BFRAMES_DEC now enables Minchen's bframe decoder |
* combined work), being distributed under the terms of the GNU General |
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* 08.05.2002 add low_delay support for B_VOP decode |
* Public License plus this exception. An independent module is a module |
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* MinChen <chenm001@163.com> |
* which is not derived from or based on XviD. |
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* 05.05.2002 fix some B-frame decode problem |
* |
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* 02.05.2002 add B-frame decode support(have some problem); |
* Note that people who make modified versions of XviD are not obligated |
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* MinChen <chenm001@163.com> |
* to grant this special exception for their modified versions; it is |
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* 22.04.2002 add some B-frame decode support; chenm001 <chenm001@163.com> |
* their choice whether to do so. The GNU General Public License gives |
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* 29.03.2002 interlacing fix - compensated block wasn't being used when |
* permission to release a modified version without this exception; this |
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* reconstructing blocks, thus artifacts |
* exception also makes it possible to release a modified version which |
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* interlacing speedup - used transfers to re-interlace |
* carries forward this exception. |
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* interlaced decoding should be as fast as progressive now |
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* 26.03.2002 interlacing support - moved transfers outside decode loop |
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* 26.12.2001 decoder_mbinter: dequant/idct moved within if(coded) block |
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* 22.12.2001 lock based interpolation |
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* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
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* |
* |
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* $Id$ |
* $Id$ |
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* |
* |
132 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
133 |
} |
} |
134 |
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if (image_create(&dec->refh, dec->edged_width, dec->edged_height)) { |
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image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
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return XVID_ERR_MEMORY; |
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} |
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dec->mbs = |
dec->mbs = |
136 |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
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CACHE_LINE); |
CACHE_LINE); |
140 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
141 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
142 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
xvid_free(dec); |
144 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
145 |
} |
} |
157 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
158 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
159 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
xvid_free(dec); |
161 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
162 |
} |
} |
182 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
183 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
184 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
xvid_free(dec); |
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264 |
start_timer(); |
start_timer(); |
265 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
266 |
{ |
{ |
267 |
int direction = dec->alternate_vertical_scan ? |
get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], |
268 |
2 : pMB->acpred_directions[i]; |
start_coeff); |
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get_intra_block(bs, &block[i * 64], direction, start_coeff); |
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269 |
} |
} |
270 |
stop_coding_timer(); |
stop_coding_timer(); |
271 |
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352 |
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uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
354 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
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start_timer(); |
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if(dec->quarterpel) { |
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interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
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dec->refh.y + 128, 16*x_pos, 16*y_pos, |
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pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
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} |
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else { |
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interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
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pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
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interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
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pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
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interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
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pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
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interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
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pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
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} |
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interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
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uv_dx, uv_dy, stride2, rounding); |
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interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
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uv_dx, uv_dy, stride2, rounding); |
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stop_comp_timer(); |
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355 |
} else { |
} else { |
356 |
int sum; |
int sum; |
357 |
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; |
371 |
} |
} |
372 |
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uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
374 |
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} |
375 |
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376 |
start_timer(); |
start_timer(); |
377 |
if(dec->quarterpel) { |
if(dec->quarterpel) { |
378 |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
DPRINTF(DPRINTF_DEBUG, "QUARTERPEL\n"); |
379 |
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
380 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
381 |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
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dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
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382 |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
383 |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
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dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
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384 |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
385 |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
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dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
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386 |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
387 |
} |
} |
388 |
else { |
else { |
401 |
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, |
402 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
403 |
stop_comp_timer(); |
stop_comp_timer(); |
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} |
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404 |
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405 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
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int direction = dec->alternate_vertical_scan ? 2 : 0; |
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406 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
407 |
{ |
{ |
408 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
409 |
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410 |
start_timer(); |
start_timer(); |
411 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64]); |
412 |
stop_coding_timer(); |
stop_coding_timer(); |
413 |
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414 |
start_timer(); |
start_timer(); |
505 |
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506 |
if (dec->interlacing) { |
if (dec->interlacing) { |
507 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
508 |
DEBUG1("deci: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_DEBUG, "deci: field_dct: %d", mb->field_dct); |
509 |
} |
} |
510 |
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511 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
651 |
if (dec->interlacing) { |
if (dec->interlacing) { |
652 |
if (cbp || intra) { |
if (cbp || intra) { |
653 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
654 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_DEBUG, "decp: field_dct: %d", mb->field_dct); |
655 |
} |
} |
656 |
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|
657 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
658 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
659 |
DEBUG1("decp: field_pred: ", mb->field_pred); |
DPRINTF(DPRINTF_DEBUG, "decp: field_pred: %d", mb->field_pred); |
660 |
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661 |
if (mb->field_pred) { |
if (mb->field_pred) { |
662 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
663 |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
DPRINTF(DPRINTF_DEBUG, "decp: field_for_top: %d", mb->field_for_top); |
664 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
665 |
DEBUG1("decp: field_for_bot: ", mb->field_for_bot); |
DPRINTF(DPRINTF_DEBUG, "decp: field_for_bot: %d", mb->field_for_bot); |
666 |
} |
} |
667 |
} |
} |
668 |
} |
} |
702 |
rounding); |
rounding); |
703 |
} else // not coded |
} else // not coded |
704 |
{ |
{ |
705 |
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DPRINTF(DPRINTF_DEBUG, "P-frame MB at (X,Y)=(%d,%d)", x, y); |
706 |
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|
707 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
708 |
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; |
709 |
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; |
873 |
stop_comp_timer(); |
stop_comp_timer(); |
874 |
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|
875 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
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int direction = dec->alternate_vertical_scan ? 2 : 0; |
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|
876 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
877 |
{ |
{ |
878 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
879 |
|
|
880 |
start_timer(); |
start_timer(); |
881 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64]); |
882 |
stop_coding_timer(); |
stop_coding_timer(); |
883 |
|
|
884 |
start_timer(); |
start_timer(); |
916 |
stop_transfer_timer(); |
stop_transfer_timer(); |
917 |
} |
} |
918 |
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|
919 |
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|
920 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
921 |
// decode an B-frame direct & inter macroblock |
// decode an B-frame direct & inter macroblock |
922 |
void |
void |
1024 |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
1025 |
b_uv_dx, b_uv_dy, stride2, 0); |
b_uv_dx, b_uv_dy, stride2, 0); |
1026 |
|
|
1027 |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos, |
1028 |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
stride); |
1029 |
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos, |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, 16 * y_pos, |
1030 |
stride, 0); |
stride); |
1031 |
|
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos + 8, |
1032 |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
stride); |
1033 |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, |
1034 |
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos + 8, |
16 * y_pos + 8, stride); |
1035 |
stride, 0); |
interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8 * x_pos, 8 * y_pos, |
1036 |
|
stride2); |
1037 |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
1038 |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
stride2); |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
|
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stride, 0); |
|
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|
|
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
|
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
|
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
|
|
stride, 0); |
|
|
|
|
|
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
dec->refn[2].u + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
stride2, 0); |
|
|
|
|
|
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
dec->refn[2].v + (8 * y_pos * stride2) + 8 * x_pos, |
|
|
stride2, 0); |
|
|
|
|
1039 |
stop_comp_timer(); |
stop_comp_timer(); |
1040 |
|
|
1041 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
|
|
|
|
1042 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
1043 |
{ |
{ |
1044 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
1045 |
|
|
1046 |
start_timer(); |
start_timer(); |
1047 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64]); |
1048 |
stop_coding_timer(); |
stop_coding_timer(); |
1049 |
|
|
1050 |
start_timer(); |
start_timer(); |
1275 |
break; |
break; |
1276 |
|
|
1277 |
default: |
default: |
1278 |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DPRINTF(DPRINTF_ERROR, "Not support B-frame mb_type = %d", mb->mb_type); |
1279 |
} |
} |
1280 |
|
|
1281 |
} // end of FOR |
} // end of FOR |
1319 |
|
|
1320 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1321 |
|
|
|
if(BitstreamShowBits(&bs, 8) == 0x7f) { |
|
|
BitstreamGetBits(&bs, 8); |
|
|
return XVID_ERR_FAIL; |
|
|
} |
|
|
|
|
1322 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1323 |
// for support B-frame to reference last 2 frame |
// for support B-frame to reference last 2 frame |
1324 |
dec->frames++; |
dec->frames++; |
1333 |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
1334 |
intra_dc_threshold); |
intra_dc_threshold); |
1335 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1336 |
DEBUG1("P_VOP Time=", dec->time); |
DPRINTF(DPRINTF_DEBUG, "P_VOP Time=%d", dec->time); |
1337 |
#endif |
#endif |
1338 |
break; |
break; |
1339 |
|
|
1340 |
case I_VOP: |
case I_VOP: |
1341 |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
1342 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1343 |
DEBUG1("I_VOP Time=", dec->time); |
DPRINTF(DPRINTF_DEBUG, "I_VOP Time=%d", dec->time); |
1344 |
#endif |
#endif |
1345 |
break; |
break; |
1346 |
|
|
1347 |
case B_VOP: |
case B_VOP: |
1348 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1349 |
if (dec->time_pp > dec->time_bp) { |
if (dec->time_pp > dec->time_bp) { |
1350 |
DEBUG1("B_VOP Time=", dec->time); |
DPRINTF(DPRINTF_DEBUG, "B_VOP Time=%d", dec->time); |
1351 |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1352 |
} else { |
} else { |
1353 |
DEBUG("broken B-frame!"); |
DPRINTF(DPRINTF_DEBUG, "Broken B_VOP"); |
1354 |
} |
} |
1355 |
#else |
#else |
1356 |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1360 |
case N_VOP: // vop not coded |
case N_VOP: // vop not coded |
1361 |
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
1362 |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
|
#ifdef BFRAMES_DEC |
|
|
DEBUG1("N_VOP Time=", dec->time); |
|
|
#endif |
|
1363 |
break; |
break; |
1364 |
|
|
1365 |
default: |
default: |
1368 |
|
|
1369 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1370 |
if (frame->length != BitstreamPos(&bs) / 8){ |
if (frame->length != BitstreamPos(&bs) / 8){ |
1371 |
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
DPRINTF(DPRINTF_DEBUG, "InLen: %d / UseLen: %d", frame->length, BitstreamPos(&bs) / 8); |
1372 |
} |
} |
1373 |
#endif |
#endif |
1374 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |