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/************************************************************************** |
/************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* decoder main |
* - 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 |
* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* editors and their companies, will have no liability for use of this |
* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
* software or modifications or derivatives thereof. |
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* |
* |
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* This program is xvid_free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
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* 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 |
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* the xvid_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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* This program is distributed in the hope that it will be useful, |
* This program is distributed in the hope that it will be useful, |
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* GNU General Public License for more details. |
* GNU General Public License for more details. |
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* |
* |
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* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the xvid_free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
*************************************************************************/ |
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|
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* |
* |
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* History: |
* History: |
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* |
* |
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* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
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* MinChen <chenm001@163.com> |
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* 10.07.2002 added BFRAMES_DEC_DEBUG support |
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* Fix a little bug for low_delay flage |
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* MinChen <chenm001@163.com> |
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* 28.06.2002 added basic resync support to iframe/pframe_decode() |
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* 22.06.2002 added primative N_VOP support |
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* #define BFRAMES_DEC now enables Minchen's bframe decoder |
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* 08.05.2002 add low_delay support for B_VOP decode |
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* MinChen <chenm001@163.com> |
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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); |
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* MinChen <chenm001@163.com> |
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* 22.04.2002 add some B-frame decode support; chenm001 <chenm001@163.com> |
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* 29.03.2002 interlacing fix - compensated block wasn't being used when |
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* reconstructing blocks, thus artifacts |
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* interlacing speedup - used transfers to re-interlace |
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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 |
* 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 |
* 26.12.2001 decoder_mbinter: dequant/idct moved within if(coded) block |
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* 22.12.2001 block based interpolation |
* 22.12.2001 lock based interpolation |
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* 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> |
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* |
* |
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* $Id: decoder.c,v 1.37.2.17 2002-12-09 10:47:05 suxen_drol Exp $ |
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* |
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*************************************************************************/ |
*************************************************************************/ |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> // memset |
#include <string.h> |
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#ifdef BFRAMES_DEC_DEBUG |
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#define BFRAMES_DEC |
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#endif |
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#include "xvid.h" |
#include "xvid.h" |
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#include "portab.h" |
#include "portab.h" |
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#include "dct/fdct.h" |
#include "dct/fdct.h" |
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#include "utils/mem_transfer.h" |
#include "utils/mem_transfer.h" |
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#include "image/interpolate8x8.h" |
#include "image/interpolate8x8.h" |
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#include "utils/mbfunctions.h" |
#include "image/reduced.h" |
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|
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#include "bitstream/mbcoding.h" |
#include "bitstream/mbcoding.h" |
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#include "prediction/mbprediction.h" |
#include "prediction/mbprediction.h" |
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#include "utils/timer.h" |
#include "utils/timer.h" |
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#include "utils/emms.h" |
#include "utils/emms.h" |
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#include "motion/motion.h" |
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#include "image/image.h" |
#include "image/image.h" |
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#include "image/colorspace.h" |
#include "image/colorspace.h" |
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#include "utils/mem_align.h" |
#include "utils/mem_align.h" |
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|
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int decoder_create(XVID_DEC_PARAM * param) |
int |
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decoder_resize(DECODER * dec) |
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{ |
{ |
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DECODER * dec; |
/* free existing */ |
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|
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dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
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if (dec == NULL) |
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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return XVID_ERR_MEMORY; |
image_destroy(&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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param->handle = dec; |
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dec->width = param->width; |
if (dec->last_mbs) |
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dec->height = param->height; |
xvid_free(dec->last_mbs); |
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if (dec->mbs) |
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xvid_free(dec->mbs); |
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/* realloc */ |
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dec->mb_width = (dec->width + 15) / 16; |
dec->mb_width = (dec->width + 15) / 16; |
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dec->mb_height = (dec->height + 15) / 16; |
dec->mb_height = (dec->height + 15) / 16; |
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dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; |
dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; |
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dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; |
dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; |
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|
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if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) |
if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { |
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{ |
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xvid_free(dec); |
xvid_free(dec); |
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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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if (image_create(&dec->refn, dec->edged_width, dec->edged_height)) |
if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
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{ |
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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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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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dec->mbs = xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, CACHE_LINE); |
// add by chenm001 <chenm001@163.com> |
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if (dec->mbs == NULL) |
// for support B-frame to reference last 2 frame |
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{ |
if (image_create(&dec->refn[1], 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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xvid_free(dec); |
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return XVID_ERR_MEMORY; |
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} |
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if (image_create(&dec->refn[2], 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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xvid_free(dec); |
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return XVID_ERR_MEMORY; |
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} |
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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 = |
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xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
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CACHE_LINE); |
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if (dec->mbs == NULL) { |
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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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image_destroy(&dec->refh, 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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memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
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// add by chenm001 <chenm001@163.com> |
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// for skip MB flag |
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dec->last_mbs = |
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xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
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CACHE_LINE); |
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if (dec->last_mbs == NULL) { |
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xvid_free(dec->mbs); |
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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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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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image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
xvid_free(dec); |
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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
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return XVID_ERR_OK; |
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} |
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int |
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decoder_create(XVID_DEC_PARAM * param) |
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{ |
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DECODER *dec; |
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dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
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if (dec == NULL) { |
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return XVID_ERR_MEMORY; |
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} |
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memset(dec, 0, sizeof(DECODER)); |
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param->handle = dec; |
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dec->width = param->width; |
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dec->height = param->height; |
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image_null(&dec->cur); |
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image_null(&dec->refn[0]); |
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image_null(&dec->refn[1]); |
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image_null(&dec->refn[2]); |
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image_null(&dec->refh); |
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dec->mbs = NULL; |
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dec->last_mbs = NULL; |
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init_timer(); |
init_timer(); |
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create_vlc_tables(); |
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// add by chenm001 <chenm001@163.com> |
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// for support B-frame to save reference frame's time |
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dec->frames = -1; |
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dec->time = dec->time_base = dec->last_time_base = 0; |
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dec->low_delay = 0; |
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dec->packed_mode = 0; |
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dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
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if (dec->fixed_dimensions) |
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return decoder_resize(dec); |
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else |
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return XVID_ERR_OK; |
return XVID_ERR_OK; |
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} |
} |
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int decoder_destroy(DECODER * dec) |
int |
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decoder_destroy(DECODER * dec) |
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{ |
{ |
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xvid_free(dec->last_mbs); |
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xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
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image_destroy(&dec->refn, dec->edged_width, dec->edged_height); |
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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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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destroy_vlc_tables(); |
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write_timer(); |
write_timer(); |
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return XVID_ERR_OK; |
return XVID_ERR_OK; |
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} |
} |
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static const int32_t dquant_table[4] = |
static const int32_t dquant_table[4] = { |
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{ |
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-1, -2, 1, 2 |
-1, -2, 1, 2 |
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}; |
}; |
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// decode an intra macroblock |
// decode an intra macroblock |
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void decoder_mbintra(DECODER * dec, |
void |
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decoder_mbintra(DECODER * dec, |
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MACROBLOCK * pMB, |
MACROBLOCK * pMB, |
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const uint32_t x_pos, |
const uint32_t x_pos, |
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const uint32_t y_pos, |
const uint32_t y_pos, |
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const uint32_t cbp, |
const uint32_t cbp, |
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Bitstream * bs, |
Bitstream * bs, |
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const uint32_t quant, |
const uint32_t quant, |
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const uint32_t intra_dc_threshold) |
const uint32_t intra_dc_threshold, |
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const unsigned int bound, |
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const int reduced_resolution) |
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{ |
{ |
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#ifdef LINUX |
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DECLARE_ALIGNED_MATRIX(block,6,64,int16_t,16); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
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DECLARE_ALIGNED_MATRIX(data,6,64,int16_t,16); |
DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
276 |
#else |
|
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CACHE_ALIGN int16_t block[6][64]; |
uint32_t stride = dec->edged_width; |
278 |
CACHE_ALIGN int16_t data[6][64]; |
uint32_t stride2 = stride / 2; |
279 |
#endif |
uint32_t next_block = stride * 8; |
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const uint32_t stride = dec->edged_width; |
|
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uint32_t i; |
uint32_t i; |
281 |
uint32_t iQuant = pMB->quant; |
uint32_t iQuant = pMB->quant; |
282 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
283 |
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|
284 |
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if (reduced_resolution) { |
285 |
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pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); |
286 |
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pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); |
287 |
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pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); |
288 |
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}else{ |
289 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
290 |
pU_Cur = dec->cur.u + (y_pos << 3) * (stride >> 1) + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
291 |
pV_Cur = dec->cur.v + (y_pos << 3) * (stride >> 1) + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
292 |
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} |
293 |
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294 |
#ifdef LINUX |
memset(block, 0, 6 * 64 * sizeof(int16_t)); // clear |
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memset(block,0,sizeof(int16_t)*6*64); |
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#else |
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memset(block, 0, sizeof(block)); // clear |
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#endif |
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295 |
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296 |
for (i = 0; i < 6; i++) |
for (i = 0; i < 6; i++) { |
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{ |
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297 |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
298 |
int16_t predictors[8]; |
int16_t predictors[8]; |
299 |
int start_coeff; |
int start_coeff; |
300 |
|
|
301 |
start_timer(); |
start_timer(); |
302 |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, block[i], iQuant, iDcScaler, predictors); |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
303 |
if (!acpred_flag) |
iQuant, iDcScaler, predictors, bound); |
304 |
{ |
if (!acpred_flag) { |
305 |
pMB->acpred_directions[i] = 0; |
pMB->acpred_directions[i] = 0; |
306 |
} |
} |
307 |
stop_prediction_timer(); |
stop_prediction_timer(); |
308 |
|
|
309 |
if (quant < intra_dc_threshold) |
if (quant < intra_dc_threshold) { |
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{ |
|
310 |
int dc_size; |
int dc_size; |
311 |
int dc_dif; |
int dc_dif; |
312 |
|
|
313 |
dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
314 |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0 ; |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0 ; |
315 |
|
|
316 |
if (dc_size > 8) |
if (dc_size > 8) { |
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{ |
|
317 |
BitstreamSkip(bs, 1); // marker |
BitstreamSkip(bs, 1); // marker |
318 |
} |
} |
319 |
|
|
320 |
block[i][0] = dc_dif; |
block[i * 64 + 0] = dc_dif; |
321 |
start_coeff = 1; |
start_coeff = 1; |
322 |
} |
|
323 |
else |
DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); |
324 |
{ |
} else { |
325 |
start_coeff = 0; |
start_coeff = 0; |
326 |
} |
} |
327 |
|
|
328 |
start_timer(); |
start_timer(); |
329 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
330 |
{ |
{ |
331 |
get_intra_block(bs, block[i], pMB->acpred_directions[i], start_coeff); |
int direction = dec->alternate_vertical_scan ? |
332 |
|
2 : pMB->acpred_directions[i]; |
333 |
|
|
334 |
|
get_intra_block(bs, &block[i * 64], direction, start_coeff); |
335 |
} |
} |
336 |
stop_coding_timer(); |
stop_coding_timer(); |
337 |
|
|
338 |
start_timer(); |
start_timer(); |
339 |
add_acdc(pMB, i, block[i], iDcScaler, predictors); |
add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors); |
340 |
stop_prediction_timer(); |
stop_prediction_timer(); |
341 |
|
|
342 |
start_timer(); |
start_timer(); |
343 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
344 |
{ |
dequant_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); |
345 |
dequant_intra(data[i], block[i], iQuant, iDcScaler); |
} else { |
346 |
} |
dequant4_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); |
|
else |
|
|
{ |
|
|
dequant4_intra(data[i], block[i], iQuant, iDcScaler); |
|
347 |
} |
} |
348 |
stop_iquant_timer(); |
stop_iquant_timer(); |
349 |
|
|
350 |
start_timer(); |
start_timer(); |
351 |
idct(data[i]); |
idct(&data[i * 64]); |
352 |
stop_idct_timer(); |
stop_idct_timer(); |
353 |
|
|
354 |
} |
} |
355 |
|
|
356 |
start_timer(); |
if (dec->interlacing && pMB->field_dct) { |
357 |
if (dec->interlacing && pMB->field_dct) |
next_block = stride; |
358 |
{ |
stride *= 2; |
|
MBFieldToFrame(data); |
|
359 |
} |
} |
|
stop_interlacing_timer(); |
|
360 |
|
|
361 |
start_timer(); |
start_timer(); |
362 |
transfer_16to8copy(pY_Cur, data[0], stride); |
|
363 |
transfer_16to8copy(pY_Cur + 8, data[1], stride); |
if (reduced_resolution) |
364 |
transfer_16to8copy(pY_Cur + 8 * stride, data[2], stride); |
{ |
365 |
transfer_16to8copy(pY_Cur + 8 + 8 * stride, data[3], stride); |
next_block*=2; |
366 |
transfer_16to8copy(pU_Cur, data[4], stride / 2); |
copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); |
367 |
transfer_16to8copy(pV_Cur, data[5], stride / 2); |
copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); |
368 |
|
copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); |
369 |
|
copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); |
370 |
|
copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); |
371 |
|
copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); |
372 |
|
}else{ |
373 |
|
transfer_16to8copy(pY_Cur, &data[0 * 64], stride); |
374 |
|
transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); |
375 |
|
transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); |
376 |
|
transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
377 |
|
transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); |
378 |
|
transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); |
379 |
|
} |
380 |
stop_transfer_timer(); |
stop_transfer_timer(); |
381 |
} |
} |
382 |
|
|
386 |
|
|
387 |
#define SIGN(X) (((X)>0)?1:-1) |
#define SIGN(X) (((X)>0)?1:-1) |
388 |
#define ABS(X) (((X)>0)?(X):-(X)) |
#define ABS(X) (((X)>0)?(X):-(X)) |
|
static const uint32_t roundtab[16] = |
|
|
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
|
|
|
|
389 |
|
|
390 |
// decode an inter macroblock |
// decode an inter macroblock |
391 |
|
|
392 |
void decoder_mbinter(DECODER * dec, |
static void |
393 |
|
rrv_mv_scaleup(VECTOR * mv) |
394 |
|
{ |
395 |
|
if (mv->x > 0) { |
396 |
|
mv->x = 2*mv->x - 1; |
397 |
|
} else if (mv->x < 0) { |
398 |
|
mv->x = 2*mv->x + 1; |
399 |
|
} |
400 |
|
|
401 |
|
if (mv->y > 0) { |
402 |
|
mv->y = 2*mv->y - 1; |
403 |
|
} else if (mv->y < 0) { |
404 |
|
mv->y = 2*mv->y + 1; |
405 |
|
} |
406 |
|
} |
407 |
|
|
408 |
|
|
409 |
|
|
410 |
|
void |
411 |
|
decoder_mbinter(DECODER * dec, |
412 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
413 |
const uint32_t x_pos, |
const uint32_t x_pos, |
414 |
const uint32_t y_pos, |
const uint32_t y_pos, |
416 |
const uint32_t cbp, |
const uint32_t cbp, |
417 |
Bitstream * bs, |
Bitstream * bs, |
418 |
const uint32_t quant, |
const uint32_t quant, |
419 |
const uint32_t rounding) |
const uint32_t rounding, |
420 |
|
const int reduced_resolution) |
421 |
{ |
{ |
|
#ifdef LINUX |
|
|
DECLARE_ALIGNED_MATRIX(block,6,64,int16_t,16); |
|
|
DECLARE_ALIGNED_MATRIX(data,6,64,int16_t,16); |
|
|
#else |
|
|
CACHE_ALIGN int16_t block[6][64]; |
|
|
CACHE_ALIGN int16_t data[6][64]; |
|
|
#endif |
|
422 |
|
|
423 |
const uint32_t stride = dec->edged_width; |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
424 |
const uint32_t stride2 = dec->edged_width / 2; |
DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
425 |
|
|
426 |
|
uint32_t stride = dec->edged_width; |
427 |
|
uint32_t stride2 = stride / 2; |
428 |
|
uint32_t next_block = stride * (reduced_resolution ? 16 : 8); |
429 |
uint32_t i; |
uint32_t i; |
430 |
uint32_t iQuant = pMB->quant; |
uint32_t iQuant = pMB->quant; |
431 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
432 |
|
|
433 |
int uv_dx, uv_dy; |
int uv_dx, uv_dy; |
434 |
|
VECTOR mv[4]; |
435 |
|
|
436 |
|
for (i = 0; i < 4; i++) |
437 |
|
{ |
438 |
|
mv[i] = pMB->mvs[i]; |
439 |
|
//DPRINTF(DPRINTF_MB, "mv[%i] orig=%i,%i local=%i", i, pMB->mvs[i].x, pMB->mvs[i].y, mv[i].x, mv[i].y); |
440 |
|
} |
441 |
|
|
442 |
|
if (reduced_resolution) { |
443 |
|
pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); |
444 |
|
pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); |
445 |
|
pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); |
446 |
|
rrv_mv_scaleup(&mv[0]); |
447 |
|
rrv_mv_scaleup(&mv[1]); |
448 |
|
rrv_mv_scaleup(&mv[2]); |
449 |
|
rrv_mv_scaleup(&mv[3]); |
450 |
|
}else{ |
451 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
452 |
pU_Cur = dec->cur.u + (y_pos << 3) * (stride >> 1) + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
453 |
pV_Cur = dec->cur.v + (y_pos << 3) * (stride >> 1) + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
454 |
|
} |
455 |
|
|
456 |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
457 |
|
uv_dx = mv[0].x; |
458 |
|
uv_dy = mv[0].y; |
459 |
|
|
460 |
|
if (dec->quarterpel) |
461 |
{ |
{ |
462 |
uv_dx = pMB->mvs[0].x; |
uv_dx /= 2; |
463 |
uv_dy = pMB->mvs[0].y; |
uv_dy /= 2; |
464 |
|
} |
465 |
|
|
466 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
467 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
468 |
|
|
469 |
|
start_timer(); |
470 |
|
if (reduced_resolution) |
471 |
|
{ |
472 |
|
interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
473 |
|
mv[0].x, mv[0].y, stride, rounding); |
474 |
|
interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, |
475 |
|
uv_dx, uv_dy, stride2, rounding); |
476 |
|
interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, |
477 |
|
uv_dx, uv_dy, stride2, rounding); |
478 |
|
|
|
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
|
|
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
|
479 |
} |
} |
480 |
else |
else |
481 |
{ |
{ |
482 |
int sum; |
if(dec->quarterpel) { |
483 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
484 |
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
485 |
|
mv[0].x, mv[0].y, stride, rounding); |
486 |
|
} |
487 |
|
else { |
488 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
489 |
|
mv[0].x, mv[0].y, stride, rounding); |
490 |
|
} |
491 |
|
|
492 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
493 |
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
uv_dx, uv_dy, stride2, rounding); |
494 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
495 |
|
uv_dx, uv_dy, stride2, rounding); |
496 |
} |
} |
497 |
|
stop_comp_timer(); |
498 |
|
|
499 |
|
} else { /* MODE_INTER4V */ |
500 |
|
int sum; |
501 |
|
|
502 |
|
if(dec->quarterpel) |
503 |
|
sum = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); |
504 |
|
else |
505 |
|
sum = mv[0].x + mv[1].x + mv[2].x + mv[3].x; |
506 |
|
|
507 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
508 |
|
|
509 |
|
if(dec->quarterpel) |
510 |
|
sum = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); |
511 |
|
else |
512 |
|
sum = mv[0].y + mv[1].y + mv[2].y + mv[3].y; |
513 |
|
|
514 |
|
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
515 |
|
|
516 |
start_timer(); |
start_timer(); |
517 |
interpolate8x8_switch(dec->cur.y, dec->refn.y, 16*x_pos, 16*y_pos , pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
if (reduced_resolution) |
518 |
interpolate8x8_switch(dec->cur.y, dec->refn.y, 16*x_pos + 8, 16*y_pos , pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
{ |
519 |
interpolate8x8_switch(dec->cur.y, dec->refn.y, 16*x_pos, 16*y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
520 |
interpolate8x8_switch(dec->cur.y, dec->refn.y, 16*x_pos + 8, 16*y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
mv[0].x, mv[0].y, stride, rounding); |
521 |
interpolate8x8_switch(dec->cur.u, dec->refn.u, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, rounding); |
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos + 16, 32*y_pos, |
522 |
interpolate8x8_switch(dec->cur.v, dec->refn.v, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, rounding); |
mv[1].x, mv[1].y, stride, rounding); |
523 |
stop_comp_timer(); |
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos + 16, |
524 |
|
mv[2].x, mv[2].y, stride, rounding); |
525 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos + 16, 32*y_pos + 16, |
526 |
|
mv[3].x, mv[3].y, stride, rounding); |
527 |
|
interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, |
528 |
|
uv_dx, uv_dy, stride2, rounding); |
529 |
|
interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, |
530 |
|
uv_dx, uv_dy, stride2, rounding); |
531 |
|
|
532 |
for (i = 0; i < 6; i++) |
// set_block(pY_Cur, stride, 32, 32, 127); |
533 |
|
} |
534 |
|
else |
535 |
{ |
{ |
536 |
|
if(dec->quarterpel) { |
537 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
538 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
539 |
|
mv[0].x, mv[0].y, stride, rounding); |
540 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
541 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
542 |
|
mv[1].x, mv[1].y, stride, rounding); |
543 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
544 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
545 |
|
mv[2].x, mv[2].y, stride, rounding); |
546 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
547 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
548 |
|
mv[3].x, mv[3].y, stride, rounding); |
549 |
|
} |
550 |
|
else { |
551 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
552 |
|
mv[0].x, mv[0].y, stride, rounding); |
553 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
554 |
|
mv[1].x, mv[1].y, stride, rounding); |
555 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
556 |
|
mv[2].x, mv[2].y, stride, rounding); |
557 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
558 |
|
mv[3].x, mv[3].y, stride, rounding); |
559 |
|
} |
560 |
|
|
561 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
562 |
|
uv_dx, uv_dy, stride2, rounding); |
563 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
564 |
|
uv_dx, uv_dy, stride2, rounding); |
565 |
|
} |
566 |
|
stop_comp_timer(); |
567 |
|
} |
568 |
|
|
569 |
|
for (i = 0; i < 6; i++) { |
570 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
571 |
|
|
572 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
573 |
{ |
{ |
574 |
memset(block[i], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
575 |
|
|
576 |
start_timer(); |
start_timer(); |
577 |
get_inter_block(bs, block[i]); |
get_inter_block(bs, &block[i * 64], direction); |
578 |
stop_coding_timer(); |
stop_coding_timer(); |
579 |
|
|
580 |
start_timer(); |
start_timer(); |
581 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
582 |
{ |
dequant_inter(&data[i * 64], &block[i * 64], iQuant); |
583 |
dequant_inter(data[i], block[i], iQuant); |
} else { |
584 |
} |
dequant4_inter(&data[i * 64], &block[i * 64], iQuant); |
|
else |
|
|
{ |
|
|
dequant4_inter(data[i], block[i], iQuant); |
|
585 |
} |
} |
586 |
stop_iquant_timer(); |
stop_iquant_timer(); |
587 |
|
|
588 |
start_timer(); |
start_timer(); |
589 |
idct(data[i]); |
idct(&data[i * 64]); |
590 |
stop_idct_timer(); |
stop_idct_timer(); |
591 |
} |
} |
592 |
} |
} |
593 |
|
|
594 |
start_timer(); |
if (dec->interlacing && pMB->field_dct) { |
595 |
if (pMB->field_dct) |
next_block = stride; |
596 |
{ |
stride *= 2; |
|
MBFieldToFrame(data); |
|
597 |
} |
} |
|
stop_interlacing_timer(); |
|
598 |
|
|
599 |
start_timer(); |
start_timer(); |
600 |
|
if (reduced_resolution) |
601 |
|
{ |
602 |
|
if (cbp & 32) |
603 |
|
add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); |
604 |
|
if (cbp & 16) |
605 |
|
add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); |
606 |
|
if (cbp & 8) |
607 |
|
add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); |
608 |
|
if (cbp & 4) |
609 |
|
add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); |
610 |
|
if (cbp & 2) |
611 |
|
add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); |
612 |
|
if (cbp & 1) |
613 |
|
add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); |
614 |
|
} |
615 |
|
else |
616 |
|
{ |
617 |
if (cbp & 32) |
if (cbp & 32) |
618 |
transfer_16to8add(pY_Cur, data[0], stride); |
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
619 |
if (cbp & 16) |
if (cbp & 16) |
620 |
transfer_16to8add(pY_Cur + 8, data[1], stride); |
transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
621 |
if (cbp & 8) |
if (cbp & 8) |
622 |
transfer_16to8add(pY_Cur + 8 * stride, data[2], stride); |
transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
623 |
if (cbp & 4) |
if (cbp & 4) |
624 |
transfer_16to8add(pY_Cur + 8 + 8 * stride, data[3], stride); |
transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
625 |
if (cbp & 2) |
if (cbp & 2) |
626 |
transfer_16to8add(pU_Cur, data[4], stride / 2); |
transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
627 |
if (cbp & 1) |
if (cbp & 1) |
628 |
transfer_16to8add(pV_Cur, data[5], stride / 2); |
transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
629 |
|
} |
630 |
stop_transfer_timer(); |
stop_transfer_timer(); |
631 |
} |
} |
632 |
|
|
633 |
|
|
634 |
void decoder_iframe(DECODER * dec, Bitstream * bs, int quant, int intra_dc_threshold) |
void |
635 |
|
decoder_iframe(DECODER * dec, |
636 |
|
Bitstream * bs, |
637 |
|
int reduced_resolution, |
638 |
|
int quant, |
639 |
|
int intra_dc_threshold) |
640 |
{ |
{ |
641 |
|
uint32_t bound; |
642 |
uint32_t x, y; |
uint32_t x, y; |
643 |
|
int mb_width = dec->mb_width; |
644 |
|
int mb_height = dec->mb_height; |
645 |
|
|
646 |
for (y = 0; y < dec->mb_height; y++) |
if (reduced_resolution) |
647 |
{ |
{ |
648 |
for (x = 0; x < dec->mb_width; x++) |
mb_width = (dec->width + 31) / 32; |
649 |
{ |
mb_height = (dec->height + 31) / 32; |
650 |
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
} |
651 |
|
|
652 |
|
bound = 0; |
653 |
|
|
654 |
|
for (y = 0; y < mb_height; y++) { |
655 |
|
for (x = 0; x < mb_width; x++) { |
656 |
|
MACROBLOCK *mb; |
657 |
uint32_t mcbpc; |
uint32_t mcbpc; |
658 |
uint32_t cbpc; |
uint32_t cbpc; |
659 |
uint32_t acpred_flag; |
uint32_t acpred_flag; |
660 |
uint32_t cbpy; |
uint32_t cbpy; |
661 |
uint32_t cbp; |
uint32_t cbp; |
662 |
|
|
663 |
|
while (BitstreamShowBits(bs, 9) == 1) |
664 |
|
BitstreamSkip(bs, 9); |
665 |
|
|
666 |
|
if (check_resync_marker(bs, 0)) |
667 |
|
{ |
668 |
|
bound = read_video_packet_header(bs, dec, 0, |
669 |
|
&quant, NULL, NULL, &intra_dc_threshold); |
670 |
|
x = bound % mb_width; |
671 |
|
y = bound / mb_width; |
672 |
|
} |
673 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
674 |
|
|
675 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
676 |
|
|
677 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
678 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
679 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
680 |
|
|
681 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
682 |
|
|
|
if (mb->mode == MODE_STUFFING) |
|
|
{ |
|
|
DEBUG("-- STUFFING ?"); |
|
|
continue; |
|
|
} |
|
|
|
|
683 |
cbpy = get_cbpy(bs, 1); |
cbpy = get_cbpy(bs, 1); |
684 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
685 |
|
|
686 |
if (mb->mode == MODE_INTRA_Q) |
if (mb->mode == MODE_INTRA_Q) { |
|
{ |
|
687 |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
688 |
if (quant > 31) |
if (quant > 31) { |
|
{ |
|
689 |
quant = 31; |
quant = 31; |
690 |
} |
} else if (quant < 1) { |
|
else if (quant < 1) |
|
|
{ |
|
691 |
quant = 1; |
quant = 1; |
692 |
} |
} |
693 |
} |
} |
694 |
mb->quant = quant; |
mb->quant = quant; |
695 |
|
mb->mvs[0].x = mb->mvs[0].y = |
696 |
|
mb->mvs[1].x = mb->mvs[1].y = |
697 |
|
mb->mvs[2].x = mb->mvs[2].y = |
698 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
699 |
|
|
700 |
if (dec->interlacing) |
if (dec->interlacing) { |
|
{ |
|
701 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
702 |
DEBUG1("deci: field_dct: ", mb->field_dct); |
DEBUG1("deci: field_dct: ", mb->field_dct); |
703 |
} |
} |
704 |
|
|
705 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, intra_dc_threshold); |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
706 |
|
intra_dc_threshold, bound, reduced_resolution); |
707 |
|
|
708 |
} |
} |
709 |
|
if(dec->out_frm) |
710 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); |
711 |
} |
} |
712 |
|
|
713 |
} |
} |
714 |
|
|
715 |
|
|
716 |
void get_motion_vector(DECODER *dec, Bitstream *bs, int x, int y, int k, VECTOR * mv, int fcode) |
void |
717 |
|
get_motion_vector(DECODER * dec, |
718 |
|
Bitstream * bs, |
719 |
|
int x, |
720 |
|
int y, |
721 |
|
int k, |
722 |
|
VECTOR * ret_mv, |
723 |
|
int fcode, |
724 |
|
const int bound) |
725 |
{ |
{ |
726 |
|
|
727 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
728 |
int high = (32 * scale_fac) - 1; |
int high = (32 * scale_fac) - 1; |
729 |
int low = ((-32) * scale_fac); |
int low = ((-32) * scale_fac); |
730 |
int range = (64 * scale_fac); |
int range = (64 * scale_fac); |
731 |
|
|
732 |
VECTOR pmv[4]; |
VECTOR pmv; |
733 |
uint32_t psad[4]; |
VECTOR mv; |
|
|
|
|
int mv_x, mv_y; |
|
|
int pmv_x, pmv_y; |
|
|
|
|
734 |
|
|
735 |
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad); |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
736 |
|
|
737 |
pmv_x = pmv[0].x; |
mv.x = get_mv(bs, fcode); |
738 |
pmv_y = pmv[0].y; |
mv.y = get_mv(bs, fcode); |
739 |
|
|
740 |
mv_x = get_mv(bs, fcode); |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv.x, mv.y, pmv.x, pmv.y); |
|
mv_y = get_mv(bs, fcode); |
|
741 |
|
|
742 |
mv_x += pmv_x; |
mv.x += pmv.x; |
743 |
mv_y += pmv_y; |
mv.y += pmv.y; |
744 |
|
|
745 |
if (mv_x < low) |
if (mv.x < low) { |
746 |
{ |
mv.x += range; |
747 |
mv_x += range; |
} else if (mv.x > high) { |
748 |
|
mv.x -= range; |
749 |
} |
} |
750 |
else if (mv_x > high) |
|
751 |
{ |
if (mv.y < low) { |
752 |
mv_x -= range; |
mv.y += range; |
753 |
|
} else if (mv.y > high) { |
754 |
|
mv.y -= range; |
755 |
} |
} |
756 |
|
|
757 |
if (mv_y < low) |
ret_mv->x = mv.x; |
758 |
{ |
ret_mv->y = mv.y; |
|
mv_y += range; |
|
759 |
} |
} |
760 |
else if (mv_y > high) |
|
761 |
|
|
762 |
|
|
763 |
|
static __inline int gmc_sanitize(int value, int quarterpel, int fcode) |
764 |
{ |
{ |
765 |
mv_y -= range; |
int length = 1 << (fcode+4); |
|
} |
|
766 |
|
|
767 |
mv->x = mv_x; |
if (quarterpel) value *= 2; |
|
mv->y = mv_y; |
|
768 |
|
|
769 |
|
if (value < -length) |
770 |
|
return -length; |
771 |
|
else if (value >= length) |
772 |
|
return length-1; |
773 |
|
else return value; |
774 |
} |
} |
775 |
|
|
776 |
|
|
777 |
void decoder_pframe(DECODER * dec, Bitstream * bs, int rounding, int quant, int fcode, int intra_dc_threshold) |
/* for P_VOP set gmc_mv to NULL */ |
778 |
|
void |
779 |
|
decoder_pframe(DECODER * dec, |
780 |
|
Bitstream * bs, |
781 |
|
int rounding, |
782 |
|
int reduced_resolution, |
783 |
|
int quant, |
784 |
|
int fcode, |
785 |
|
int intra_dc_threshold, |
786 |
|
VECTOR * gmc_mv) |
787 |
{ |
{ |
788 |
|
|
789 |
uint32_t x, y; |
uint32_t x, y; |
790 |
|
uint32_t bound; |
791 |
|
int cp_mb, st_mb; |
792 |
|
int mb_width = dec->mb_width; |
793 |
|
int mb_height = dec->mb_height; |
794 |
|
|
795 |
image_swap(&dec->cur, &dec->refn); |
if (reduced_resolution) |
796 |
|
{ |
797 |
|
mb_width = (dec->width + 31) / 32; |
798 |
|
mb_height = (dec->height + 31) / 32; |
799 |
|
} |
800 |
|
|
801 |
start_timer(); |
start_timer(); |
802 |
image_setedges(&dec->refn, dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
803 |
|
dec->width, dec->height); |
804 |
stop_edges_timer(); |
stop_edges_timer(); |
805 |
|
|
806 |
for (y = 0; y < dec->mb_height; y++) |
bound = 0; |
807 |
{ |
|
808 |
for (x = 0; x < dec->mb_width; x++) |
for (y = 0; y < mb_height; y++) { |
809 |
|
cp_mb = st_mb = 0; |
810 |
|
for (x = 0; x < mb_width; x++) { |
811 |
|
MACROBLOCK *mb; |
812 |
|
|
813 |
|
// skip stuffing |
814 |
|
while (BitstreamShowBits(bs, 10) == 1) |
815 |
|
BitstreamSkip(bs, 10); |
816 |
|
|
817 |
|
if (check_resync_marker(bs, fcode - 1)) |
818 |
{ |
{ |
819 |
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
bound = read_video_packet_header(bs, dec, fcode - 1, |
820 |
|
&quant, &fcode, NULL, &intra_dc_threshold); |
821 |
|
x = bound % mb_width; |
822 |
|
y = bound / mb_width; |
823 |
|
} |
824 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
825 |
|
|
826 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
827 |
|
|
828 |
if (!BitstreamGetBit(bs)) // not_coded |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
829 |
|
if (!(BitstreamGetBit(bs))) // not_coded |
830 |
{ |
{ |
831 |
uint32_t mcbpc; |
uint32_t mcbpc; |
832 |
uint32_t cbpc; |
uint32_t cbpc; |
834 |
uint32_t cbpy; |
uint32_t cbpy; |
835 |
uint32_t cbp; |
uint32_t cbp; |
836 |
uint32_t intra; |
uint32_t intra; |
837 |
|
int mcsel = 0; // mcsel: '0'=local motion, '1'=GMC |
838 |
|
|
839 |
|
cp_mb++; |
840 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
841 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
842 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
843 |
|
|
844 |
|
DPRINTF(DPRINTF_MB, "mode %i", mb->mode); |
845 |
|
DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); |
846 |
acpred_flag = 0; |
acpred_flag = 0; |
847 |
|
|
848 |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
849 |
|
|
850 |
if (intra) |
if (intra) { |
|
{ |
|
851 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
852 |
} |
} |
853 |
|
|
854 |
if (mb->mode == MODE_STUFFING) |
if (gmc_mv && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
855 |
{ |
{ |
856 |
DEBUG("-- STUFFING ?"); |
mcsel = BitstreamGetBit(bs); |
|
continue; |
|
857 |
} |
} |
858 |
|
|
859 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
860 |
|
DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); |
861 |
|
|
862 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
863 |
|
|
864 |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
865 |
{ |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
866 |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
DPRINTF(DPRINTF_MB, "dquant %i", dquant); |
867 |
if (quant > 31) |
quant += dquant; |
868 |
{ |
if (quant > 31) { |
869 |
quant = 31; |
quant = 31; |
870 |
} |
} else if (quant < 1) { |
|
else if (mb->quant < 1) |
|
|
{ |
|
871 |
quant = 1; |
quant = 1; |
872 |
} |
} |
873 |
|
DPRINTF(DPRINTF_MB, "quant %i", quant); |
874 |
} |
} |
875 |
mb->quant = quant; |
mb->quant = quant; |
876 |
|
|
877 |
if (dec->interlacing) |
if (dec->interlacing) { |
878 |
{ |
if (cbp || intra) { |
879 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
880 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
881 |
|
} |
882 |
|
|
883 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
|
{ |
|
884 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
885 |
DEBUG1("decp: field_pred: ", mb->field_pred); |
DEBUG1("decp: field_pred: ", mb->field_pred); |
886 |
|
|
887 |
if (mb->field_pred) |
if (mb->field_pred) { |
|
{ |
|
888 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
889 |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
890 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
893 |
} |
} |
894 |
} |
} |
895 |
|
|
896 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
897 |
{ |
|
898 |
if (dec->interlacing && mb->field_pred) |
if (mcsel) |
|
{ |
|
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
|
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode); |
|
|
} |
|
|
else |
|
|
{ |
|
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
|
|
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
|
|
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
|
|
} |
|
|
} |
|
|
else if (mb->mode == MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */) |
|
|
{ |
|
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
|
|
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode); |
|
|
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode); |
|
|
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode); |
|
|
} |
|
|
else // MODE_INTRA, MODE_INTRA_Q |
|
899 |
{ |
{ |
900 |
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 = gmc_sanitize(gmc_mv[0].x, dec->quarterpel, fcode); |
901 |
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 = gmc_sanitize(gmc_mv[0].y, dec->quarterpel, fcode); |
902 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, intra_dc_threshold); |
|
903 |
|
} else if (dec->interlacing && mb->field_pred) { |
904 |
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
905 |
|
fcode, bound); |
906 |
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
907 |
|
fcode, bound); |
908 |
|
} else { |
909 |
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
910 |
|
fcode, bound); |
911 |
|
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
912 |
|
mb->mvs[0].x; |
913 |
|
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
914 |
|
mb->mvs[0].y; |
915 |
|
} |
916 |
|
} else if (mb->mode == MODE_INTER4V ) { |
917 |
|
|
918 |
|
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
919 |
|
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
920 |
|
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
921 |
|
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); |
922 |
|
} else // MODE_INTRA, MODE_INTRA_Q |
923 |
|
{ |
924 |
|
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
925 |
|
0; |
926 |
|
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
927 |
|
0; |
928 |
|
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
929 |
|
intra_dc_threshold, bound, reduced_resolution); |
930 |
continue; |
continue; |
931 |
} |
} |
932 |
|
|
933 |
decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, rounding); |
decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
934 |
|
rounding, reduced_resolution); |
935 |
|
|
936 |
} |
} |
937 |
else // not coded |
else if (gmc_mv) /* not coded S_VOP macroblock */ |
938 |
|
{ |
939 |
|
mb->mode = MODE_NOT_CODED; |
940 |
|
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = gmc_sanitize(gmc_mv[0].x, dec->quarterpel, fcode); |
941 |
|
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = gmc_sanitize(gmc_mv[0].y, dec->quarterpel, fcode); |
942 |
|
decoder_mbinter(dec, mb, x, y, 0, 0, bs, quant, rounding, reduced_resolution); |
943 |
|
} |
944 |
|
else /* not coded P_VOP macroblock */ |
945 |
{ |
{ |
|
|
|
946 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
947 |
|
|
948 |
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; |
949 |
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; |
|
|
|
950 |
// copy macroblock directly from ref to cur |
// copy macroblock directly from ref to cur |
951 |
|
|
952 |
start_timer(); |
start_timer(); |
953 |
|
|
954 |
transfer8x8_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x), |
if (reduced_resolution) |
955 |
dec->refn.y + (16*y)*dec->edged_width + (16*x), |
{ |
956 |
dec->edged_width); |
transfer32x32_copy(dec->cur.y + (32*y)*dec->edged_width + (32*x), |
957 |
|
dec->refn[0].y + (32*y)*dec->edged_width + (32*x), |
|
transfer8x8_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x+8), |
|
|
dec->refn.y + (16*y)*dec->edged_width + (16*x+8), |
|
958 |
dec->edged_width); |
dec->edged_width); |
959 |
|
|
960 |
transfer8x8_copy(dec->cur.y + (16*y+8)*dec->edged_width + (16*x), |
transfer16x16_copy(dec->cur.u + (16*y)*dec->edged_width/2 + (16*x), |
961 |
dec->refn.y + (16*y+8)*dec->edged_width + (16*x), |
dec->refn[0].u + (16*y)*dec->edged_width/2 + (16*x), |
962 |
dec->edged_width); |
dec->edged_width/2); |
963 |
|
|
964 |
transfer8x8_copy(dec->cur.y + (16*y+8)*dec->edged_width + (16*x+8), |
transfer16x16_copy(dec->cur.v + (16*y)*dec->edged_width/2 + (16*x), |
965 |
dec->refn.y + (16*y+8)*dec->edged_width + (16*x+8), |
dec->refn[0].v + (16*y)*dec->edged_width/2 + (16*x), |
966 |
|
dec->edged_width/2); |
967 |
|
} |
968 |
|
else |
969 |
|
{ |
970 |
|
transfer16x16_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x), |
971 |
|
dec->refn[0].y + (16*y)*dec->edged_width + (16*x), |
972 |
dec->edged_width); |
dec->edged_width); |
973 |
|
|
974 |
transfer8x8_copy(dec->cur.u + (8*y)*dec->edged_width/2 + (8*x), |
transfer8x8_copy(dec->cur.u + (8*y)*dec->edged_width/2 + (8*x), |
975 |
dec->refn.u + (8*y)*dec->edged_width/2 + (8*x), |
dec->refn[0].u + (8*y)*dec->edged_width/2 + (8*x), |
976 |
dec->edged_width/2); |
dec->edged_width/2); |
977 |
|
|
978 |
transfer8x8_copy(dec->cur.v + (8*y)*dec->edged_width/2 + (8*x), |
transfer8x8_copy(dec->cur.v + (8*y)*dec->edged_width/2 + (8*x), |
979 |
dec->refn.v + (8*y)*dec->edged_width/2 + (8*x), |
dec->refn[0].v + (8*y)*dec->edged_width/2 + (8*x), |
980 |
dec->edged_width/2); |
dec->edged_width/2); |
981 |
|
} |
982 |
|
|
983 |
stop_transfer_timer(); |
stop_transfer_timer(); |
984 |
|
|
985 |
|
if(dec->out_frm && cp_mb > 0) { |
986 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
987 |
|
cp_mb = 0; |
988 |
|
} |
989 |
|
st_mb = x+1; |
990 |
} |
} |
991 |
} |
} |
992 |
|
if(dec->out_frm && cp_mb > 0) |
993 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
994 |
} |
} |
995 |
} |
} |
996 |
|
|
997 |
int decoder_decode(DECODER * dec, XVID_DEC_FRAME * frame) |
|
998 |
|
// add by MinChen <chenm001@163.com> |
999 |
|
// decode B-frame motion vector |
1000 |
|
void |
1001 |
|
get_b_motion_vector(DECODER * dec, |
1002 |
|
Bitstream * bs, |
1003 |
|
int x, |
1004 |
|
int y, |
1005 |
|
VECTOR * mv, |
1006 |
|
int fcode, |
1007 |
|
const VECTOR pmv) |
1008 |
|
{ |
1009 |
|
int scale_fac = 1 << (fcode - 1); |
1010 |
|
int high = (32 * scale_fac) - 1; |
1011 |
|
int low = ((-32) * scale_fac); |
1012 |
|
int range = (64 * scale_fac); |
1013 |
|
|
1014 |
|
int mv_x, mv_y; |
1015 |
|
int pmv_x, pmv_y; |
1016 |
|
|
1017 |
|
pmv_x = pmv.x; |
1018 |
|
pmv_y = pmv.y; |
1019 |
|
|
1020 |
|
mv_x = get_mv(bs, fcode); |
1021 |
|
mv_y = get_mv(bs, fcode); |
1022 |
|
|
1023 |
|
mv_x += pmv_x; |
1024 |
|
mv_y += pmv_y; |
1025 |
|
|
1026 |
|
if (mv_x < low) { |
1027 |
|
mv_x += range; |
1028 |
|
} else if (mv_x > high) { |
1029 |
|
mv_x -= range; |
1030 |
|
} |
1031 |
|
|
1032 |
|
if (mv_y < low) { |
1033 |
|
mv_y += range; |
1034 |
|
} else if (mv_y > high) { |
1035 |
|
mv_y -= range; |
1036 |
|
} |
1037 |
|
|
1038 |
|
mv->x = mv_x; |
1039 |
|
mv->y = mv_y; |
1040 |
|
} |
1041 |
|
|
1042 |
|
|
1043 |
|
// add by MinChen <chenm001@163.com> |
1044 |
|
// decode an B-frame forward & backward inter macroblock |
1045 |
|
void |
1046 |
|
decoder_bf_mbinter(DECODER * dec, |
1047 |
|
const MACROBLOCK * pMB, |
1048 |
|
const uint32_t x_pos, |
1049 |
|
const uint32_t y_pos, |
1050 |
|
const uint32_t cbp, |
1051 |
|
Bitstream * bs, |
1052 |
|
const uint32_t quant, |
1053 |
|
const uint8_t ref) |
1054 |
|
{ |
1055 |
|
|
1056 |
|
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
1057 |
|
DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
1058 |
|
|
1059 |
|
uint32_t stride = dec->edged_width; |
1060 |
|
uint32_t stride2 = stride / 2; |
1061 |
|
uint32_t next_block = stride * 8; |
1062 |
|
uint32_t i; |
1063 |
|
uint32_t iQuant = pMB->quant; |
1064 |
|
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
1065 |
|
int uv_dx, uv_dy; |
1066 |
|
|
1067 |
|
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
1068 |
|
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
1069 |
|
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
1070 |
|
|
1071 |
|
|
1072 |
|
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
1073 |
|
uv_dx = pMB->mvs[0].x; |
1074 |
|
uv_dy = pMB->mvs[0].y; |
1075 |
|
|
1076 |
|
if (dec->quarterpel) |
1077 |
|
{ |
1078 |
|
uv_dx /= 2; |
1079 |
|
uv_dy /= 2; |
1080 |
|
} |
1081 |
|
|
1082 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
1083 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
1084 |
|
} else { |
1085 |
|
int sum; |
1086 |
|
|
1087 |
|
if(dec->quarterpel) |
1088 |
|
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
1089 |
|
else |
1090 |
|
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
1091 |
|
|
1092 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1093 |
|
|
1094 |
|
if(dec->quarterpel) |
1095 |
|
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
1096 |
|
else |
1097 |
|
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
1098 |
|
|
1099 |
|
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
1100 |
|
} |
1101 |
|
|
1102 |
|
start_timer(); |
1103 |
|
if(dec->quarterpel) { |
1104 |
|
interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->refh.y, dec->refh.y + 64, |
1105 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
1106 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1107 |
|
} |
1108 |
|
else { |
1109 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos, |
1110 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1111 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos, |
1112 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1113 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos + 8, |
1114 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1115 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos + 8, |
1116 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1117 |
|
} |
1118 |
|
|
1119 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, |
1120 |
|
uv_dx, uv_dy, stride2, 0); |
1121 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, |
1122 |
|
uv_dx, uv_dy, stride2, 0); |
1123 |
|
stop_comp_timer(); |
1124 |
|
|
1125 |
|
for (i = 0; i < 6; i++) { |
1126 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1127 |
|
|
1128 |
|
if (cbp & (1 << (5 - i))) // coded |
1129 |
|
{ |
1130 |
|
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
1131 |
|
|
1132 |
|
start_timer(); |
1133 |
|
get_inter_block(bs, &block[i * 64], direction); |
1134 |
|
stop_coding_timer(); |
1135 |
|
|
1136 |
|
start_timer(); |
1137 |
|
if (dec->quant_type == 0) { |
1138 |
|
dequant_inter(&data[i * 64], &block[i * 64], iQuant); |
1139 |
|
} else { |
1140 |
|
dequant4_inter(&data[i * 64], &block[i * 64], iQuant); |
1141 |
|
} |
1142 |
|
stop_iquant_timer(); |
1143 |
|
|
1144 |
|
start_timer(); |
1145 |
|
idct(&data[i * 64]); |
1146 |
|
stop_idct_timer(); |
1147 |
|
} |
1148 |
|
} |
1149 |
|
|
1150 |
|
if (dec->interlacing && pMB->field_dct) { |
1151 |
|
next_block = stride; |
1152 |
|
stride *= 2; |
1153 |
|
} |
1154 |
|
|
1155 |
|
start_timer(); |
1156 |
|
if (cbp & 32) |
1157 |
|
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
1158 |
|
if (cbp & 16) |
1159 |
|
transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
1160 |
|
if (cbp & 8) |
1161 |
|
transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
1162 |
|
if (cbp & 4) |
1163 |
|
transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
1164 |
|
if (cbp & 2) |
1165 |
|
transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
1166 |
|
if (cbp & 1) |
1167 |
|
transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
1168 |
|
stop_transfer_timer(); |
1169 |
|
} |
1170 |
|
|
1171 |
|
// add by MinChen <chenm001@163.com> |
1172 |
|
// decode an B-frame direct & inter macroblock |
1173 |
|
void |
1174 |
|
decoder_bf_interpolate_mbinter(DECODER * dec, |
1175 |
|
IMAGE forward, |
1176 |
|
IMAGE backward, |
1177 |
|
const MACROBLOCK * pMB, |
1178 |
|
const uint32_t x_pos, |
1179 |
|
const uint32_t y_pos, |
1180 |
|
Bitstream * bs) |
1181 |
|
{ |
1182 |
|
|
1183 |
|
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
1184 |
|
DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
1185 |
|
|
1186 |
|
uint32_t stride = dec->edged_width; |
1187 |
|
uint32_t stride2 = stride / 2; |
1188 |
|
uint32_t next_block = stride * 8; |
1189 |
|
uint32_t iQuant = pMB->quant; |
1190 |
|
int uv_dx, uv_dy; |
1191 |
|
int b_uv_dx, b_uv_dy; |
1192 |
|
uint32_t i; |
1193 |
|
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
1194 |
|
const uint32_t cbp = pMB->cbp; |
1195 |
|
|
1196 |
|
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
1197 |
|
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
1198 |
|
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
1199 |
|
|
1200 |
|
|
1201 |
|
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
1202 |
|
uv_dx = pMB->mvs[0].x; |
1203 |
|
uv_dy = pMB->mvs[0].y; |
1204 |
|
|
1205 |
|
b_uv_dx = pMB->b_mvs[0].x; |
1206 |
|
b_uv_dy = pMB->b_mvs[0].y; |
1207 |
|
|
1208 |
|
if (dec->quarterpel) |
1209 |
|
{ |
1210 |
|
uv_dx /= 2; |
1211 |
|
uv_dy /= 2; |
1212 |
|
|
1213 |
|
b_uv_dx /= 2; |
1214 |
|
b_uv_dy /= 2; |
1215 |
|
} |
1216 |
|
|
1217 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
1218 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
1219 |
|
|
1220 |
|
b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; |
1221 |
|
b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; |
1222 |
|
} else { |
1223 |
|
int sum; |
1224 |
|
|
1225 |
|
if(dec->quarterpel) |
1226 |
|
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
1227 |
|
else |
1228 |
|
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
1229 |
|
|
1230 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1231 |
|
|
1232 |
|
if(dec->quarterpel) |
1233 |
|
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
1234 |
|
else |
1235 |
|
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
1236 |
|
|
1237 |
|
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
1238 |
|
|
1239 |
|
|
1240 |
|
if(dec->quarterpel) |
1241 |
|
sum = (pMB->b_mvs[0].x / 2) + (pMB->b_mvs[1].x / 2) + (pMB->b_mvs[2].x / 2) + (pMB->b_mvs[3].x / 2); |
1242 |
|
else |
1243 |
|
sum = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; |
1244 |
|
|
1245 |
|
b_uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1246 |
|
|
1247 |
|
if(dec->quarterpel) |
1248 |
|
sum = (pMB->b_mvs[0].y / 2) + (pMB->b_mvs[1].y / 2) + (pMB->b_mvs[2].y / 2) + (pMB->b_mvs[3].y / 2); |
1249 |
|
else |
1250 |
|
sum = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; |
1251 |
|
|
1252 |
|
b_uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
1253 |
|
} |
1254 |
|
|
1255 |
|
|
1256 |
|
start_timer(); |
1257 |
|
if(dec->quarterpel) { |
1258 |
|
if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
1259 |
|
interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->refh.y, dec->refh.y + 64, |
1260 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
1261 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1262 |
|
else { |
1263 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->refh.y, dec->refh.y + 64, |
1264 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
1265 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1266 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->refh.y, dec->refh.y + 64, |
1267 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
1268 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1269 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->refh.y, dec->refh.y + 64, |
1270 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
1271 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1272 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->refh.y, dec->refh.y + 64, |
1273 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1274 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1275 |
|
} |
1276 |
|
} |
1277 |
|
else { |
1278 |
|
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
1279 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1280 |
|
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
1281 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1282 |
|
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
1283 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1284 |
|
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, |
1285 |
|
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
1286 |
|
0); |
1287 |
|
} |
1288 |
|
|
1289 |
|
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
1290 |
|
uv_dy, stride2, 0); |
1291 |
|
interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
1292 |
|
uv_dy, stride2, 0); |
1293 |
|
|
1294 |
|
|
1295 |
|
if(dec->quarterpel) { |
1296 |
|
if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
1297 |
|
interpolate16x16_quarterpel(dec->refn[2].y, backward.y, dec->refh.y, dec->refh.y + 64, |
1298 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
1299 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1300 |
|
else { |
1301 |
|
interpolate8x8_quarterpel(dec->refn[2].y, backward.y, dec->refh.y, dec->refh.y + 64, |
1302 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
1303 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1304 |
|
interpolate8x8_quarterpel(dec->refn[2].y, backward.y, dec->refh.y, dec->refh.y + 64, |
1305 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
1306 |
|
pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); |
1307 |
|
interpolate8x8_quarterpel(dec->refn[2].y, backward.y, dec->refh.y, dec->refh.y + 64, |
1308 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
1309 |
|
pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); |
1310 |
|
interpolate8x8_quarterpel(dec->refn[2].y, backward.y, dec->refh.y, dec->refh.y + 64, |
1311 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1312 |
|
pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); |
1313 |
|
} |
1314 |
|
} |
1315 |
|
else { |
1316 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, 16 * y_pos, |
1317 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1318 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
1319 |
|
16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, |
1320 |
|
0); |
1321 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, |
1322 |
|
16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, |
1323 |
|
stride, 0); |
1324 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
1325 |
|
16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, |
1326 |
|
stride, 0); |
1327 |
|
} |
1328 |
|
|
1329 |
|
interpolate8x8_switch(dec->refn[2].u, backward.u, 8 * x_pos, 8 * y_pos, |
1330 |
|
b_uv_dx, b_uv_dy, stride2, 0); |
1331 |
|
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
1332 |
|
b_uv_dx, b_uv_dy, stride2, 0); |
1333 |
|
|
1334 |
|
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1335 |
|
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1336 |
|
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos, |
1337 |
|
stride, 1, 8); |
1338 |
|
|
1339 |
|
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1340 |
|
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1341 |
|
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1342 |
|
stride, 1, 8); |
1343 |
|
|
1344 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1345 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1346 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1347 |
|
stride, 1, 8); |
1348 |
|
|
1349 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1350 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1351 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1352 |
|
stride, 1, 8); |
1353 |
|
|
1354 |
|
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1355 |
|
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1356 |
|
dec->refn[2].u + (8 * y_pos * stride2) + 8 * x_pos, |
1357 |
|
stride2, 1, 8); |
1358 |
|
|
1359 |
|
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1360 |
|
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1361 |
|
dec->refn[2].v + (8 * y_pos * stride2) + 8 * x_pos, |
1362 |
|
stride2, 1, 8); |
1363 |
|
|
1364 |
|
stop_comp_timer(); |
1365 |
|
|
1366 |
|
for (i = 0; i < 6; i++) { |
1367 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1368 |
|
|
1369 |
|
if (cbp & (1 << (5 - i))) // coded |
1370 |
|
{ |
1371 |
|
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
1372 |
|
|
1373 |
|
start_timer(); |
1374 |
|
get_inter_block(bs, &block[i * 64], direction); |
1375 |
|
stop_coding_timer(); |
1376 |
|
|
1377 |
|
start_timer(); |
1378 |
|
if (dec->quant_type == 0) { |
1379 |
|
dequant_inter(&data[i * 64], &block[i * 64], iQuant); |
1380 |
|
} else { |
1381 |
|
dequant4_inter(&data[i * 64], &block[i * 64], iQuant); |
1382 |
|
} |
1383 |
|
stop_iquant_timer(); |
1384 |
|
|
1385 |
|
start_timer(); |
1386 |
|
idct(&data[i * 64]); |
1387 |
|
stop_idct_timer(); |
1388 |
|
} |
1389 |
|
} |
1390 |
|
|
1391 |
|
if (dec->interlacing && pMB->field_dct) { |
1392 |
|
next_block = stride; |
1393 |
|
stride *= 2; |
1394 |
|
} |
1395 |
|
|
1396 |
|
start_timer(); |
1397 |
|
if (cbp & 32) |
1398 |
|
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
1399 |
|
if (cbp & 16) |
1400 |
|
transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
1401 |
|
if (cbp & 8) |
1402 |
|
transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
1403 |
|
if (cbp & 4) |
1404 |
|
transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
1405 |
|
if (cbp & 2) |
1406 |
|
transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
1407 |
|
if (cbp & 1) |
1408 |
|
transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
1409 |
|
stop_transfer_timer(); |
1410 |
|
} |
1411 |
|
|
1412 |
|
|
1413 |
|
// add by MinChen <chenm001@163.com> |
1414 |
|
// for decode B-frame dbquant |
1415 |
|
int32_t __inline |
1416 |
|
get_dbquant(Bitstream * bs) |
1417 |
|
{ |
1418 |
|
if (!BitstreamGetBit(bs)) // '0' |
1419 |
|
return (0); |
1420 |
|
else if (!BitstreamGetBit(bs)) // '10' |
1421 |
|
return (-2); |
1422 |
|
else |
1423 |
|
return (2); // '11' |
1424 |
|
} |
1425 |
|
|
1426 |
|
// add by MinChen <chenm001@163.com> |
1427 |
|
// for decode B-frame mb_type |
1428 |
|
// bit ret_value |
1429 |
|
// 1 0 |
1430 |
|
// 01 1 |
1431 |
|
// 001 2 |
1432 |
|
// 0001 3 |
1433 |
|
int32_t __inline |
1434 |
|
get_mbtype(Bitstream * bs) |
1435 |
|
{ |
1436 |
|
int32_t mb_type; |
1437 |
|
|
1438 |
|
for (mb_type = 0; mb_type <= 3; mb_type++) { |
1439 |
|
if (BitstreamGetBit(bs)) |
1440 |
|
break; |
1441 |
|
} |
1442 |
|
|
1443 |
|
if (mb_type <= 3) |
1444 |
|
return (mb_type); |
1445 |
|
else |
1446 |
|
return (-1); |
1447 |
|
} |
1448 |
|
|
1449 |
|
void |
1450 |
|
decoder_bframe(DECODER * dec, |
1451 |
|
Bitstream * bs, |
1452 |
|
int quant, |
1453 |
|
int fcode_forward, |
1454 |
|
int fcode_backward) |
1455 |
|
{ |
1456 |
|
uint32_t x, y; |
1457 |
|
VECTOR mv; |
1458 |
|
const VECTOR zeromv = {0,0}; |
1459 |
|
#ifdef BFRAMES_DEC_DEBUG |
1460 |
|
FILE *fp; |
1461 |
|
static char first=0; |
1462 |
|
#define BFRAME_DEBUG if (!first && fp){ \ |
1463 |
|
fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ |
1464 |
|
} |
1465 |
|
#endif |
1466 |
|
|
1467 |
|
start_timer(); |
1468 |
|
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1469 |
|
dec->width, dec->height); |
1470 |
|
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1471 |
|
dec->width, dec->height); |
1472 |
|
stop_edges_timer(); |
1473 |
|
|
1474 |
|
#ifdef BFRAMES_DEC_DEBUG |
1475 |
|
if (!first){ |
1476 |
|
fp=fopen("C:\\XVIDDBG.TXT","w"); |
1477 |
|
} |
1478 |
|
#endif |
1479 |
|
|
1480 |
|
for (y = 0; y < dec->mb_height; y++) { |
1481 |
|
// Initialize Pred Motion Vector |
1482 |
|
dec->p_fmv = dec->p_bmv = zeromv; |
1483 |
|
for (x = 0; x < dec->mb_width; x++) { |
1484 |
|
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1485 |
|
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1486 |
|
|
1487 |
|
mv = |
1488 |
|
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1489 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1490 |
|
|
1491 |
|
// the last P_VOP is skip macroblock ? |
1492 |
|
if (last_mb->mode == MODE_NOT_CODED) { |
1493 |
|
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
1494 |
|
mb->cbp = 0; |
1495 |
|
#ifdef BFRAMES_DEC_DEBUG |
1496 |
|
mb->mb_type = MODE_NOT_CODED; |
1497 |
|
BFRAME_DEBUG |
1498 |
|
#endif |
1499 |
|
mb->mb_type = MODE_FORWARD; |
1500 |
|
mb->quant = last_mb->quant; |
1501 |
|
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1502 |
|
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1503 |
|
|
1504 |
|
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1505 |
|
continue; |
1506 |
|
} |
1507 |
|
|
1508 |
|
if (!BitstreamGetBit(bs)) { // modb=='0' |
1509 |
|
const uint8_t modb2 = BitstreamGetBit(bs); |
1510 |
|
|
1511 |
|
mb->mb_type = get_mbtype(bs); |
1512 |
|
|
1513 |
|
if (!modb2) { // modb=='00' |
1514 |
|
mb->cbp = BitstreamGetBits(bs, 6); |
1515 |
|
} else { |
1516 |
|
mb->cbp = 0; |
1517 |
|
} |
1518 |
|
if (mb->mb_type && mb->cbp) { |
1519 |
|
quant += get_dbquant(bs); |
1520 |
|
|
1521 |
|
if (quant > 31) { |
1522 |
|
quant = 31; |
1523 |
|
} else if (quant < 1) { |
1524 |
|
quant = 1; |
1525 |
|
} |
1526 |
|
} |
1527 |
|
} else { |
1528 |
|
mb->mb_type = MODE_DIRECT_NONE_MV; |
1529 |
|
mb->cbp = 0; |
1530 |
|
} |
1531 |
|
|
1532 |
|
mb->quant = quant; |
1533 |
|
mb->mode = MODE_INTER4V; |
1534 |
|
//DEBUG1("Switch bm_type=",mb->mb_type); |
1535 |
|
|
1536 |
|
#ifdef BFRAMES_DEC_DEBUG |
1537 |
|
BFRAME_DEBUG |
1538 |
|
#endif |
1539 |
|
|
1540 |
|
switch (mb->mb_type) { |
1541 |
|
case MODE_DIRECT: |
1542 |
|
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1543 |
|
|
1544 |
|
case MODE_DIRECT_NONE_MV: |
1545 |
|
{ |
1546 |
|
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
1547 |
|
int i; |
1548 |
|
|
1549 |
|
for (i = 0; i < 4; i++) { |
1550 |
|
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1551 |
|
/ TRD + mv.x); |
1552 |
|
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1553 |
|
? ((TRB - TRD) * last_mb->mvs[i].x) |
1554 |
|
/ TRD |
1555 |
|
: mb->mvs[i].x - last_mb->mvs[i].x); |
1556 |
|
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1557 |
|
/ TRD + mv.y); |
1558 |
|
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1559 |
|
? ((TRB - TRD) * last_mb->mvs[i].y) |
1560 |
|
/ TRD |
1561 |
|
: mb->mvs[i].y - last_mb->mvs[i].y); |
1562 |
|
} |
1563 |
|
//DEBUG("B-frame Direct!\n"); |
1564 |
|
} |
1565 |
|
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1566 |
|
mb, x, y, bs); |
1567 |
|
break; |
1568 |
|
|
1569 |
|
case MODE_INTERPOLATE: |
1570 |
|
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1571 |
|
dec->p_fmv); |
1572 |
|
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1573 |
|
|
1574 |
|
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1575 |
|
fcode_backward, dec->p_bmv); |
1576 |
|
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1577 |
|
mb->b_mvs[3] = mb->b_mvs[0]; |
1578 |
|
|
1579 |
|
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1580 |
|
mb, x, y, bs); |
1581 |
|
//DEBUG("B-frame Bidir!\n"); |
1582 |
|
break; |
1583 |
|
|
1584 |
|
case MODE_BACKWARD: |
1585 |
|
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1586 |
|
dec->p_bmv); |
1587 |
|
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1588 |
|
|
1589 |
|
mb->mode = MODE_INTER; |
1590 |
|
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1591 |
|
//DEBUG("B-frame Backward!\n"); |
1592 |
|
break; |
1593 |
|
|
1594 |
|
case MODE_FORWARD: |
1595 |
|
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1596 |
|
dec->p_fmv); |
1597 |
|
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1598 |
|
|
1599 |
|
mb->mode = MODE_INTER; |
1600 |
|
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1601 |
|
//DEBUG("B-frame Forward!\n"); |
1602 |
|
break; |
1603 |
|
|
1604 |
|
default: |
1605 |
|
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
1606 |
|
} |
1607 |
|
|
1608 |
|
} // end of FOR |
1609 |
|
} |
1610 |
|
#ifdef BFRAMES_DEC_DEBUG |
1611 |
|
if (!first){ |
1612 |
|
first=1; |
1613 |
|
if (fp) |
1614 |
|
fclose(fp); |
1615 |
|
} |
1616 |
|
#endif |
1617 |
|
} |
1618 |
|
|
1619 |
|
// swap two MACROBLOCK array |
1620 |
|
void |
1621 |
|
mb_swap(MACROBLOCK ** mb1, |
1622 |
|
MACROBLOCK ** mb2) |
1623 |
|
{ |
1624 |
|
MACROBLOCK *temp = *mb1; |
1625 |
|
|
1626 |
|
*mb1 = *mb2; |
1627 |
|
*mb2 = temp; |
1628 |
|
} |
1629 |
|
|
1630 |
|
int |
1631 |
|
decoder_decode(DECODER * dec, |
1632 |
|
XVID_DEC_FRAME * frame, XVID_DEC_STATS * stats) |
1633 |
{ |
{ |
1634 |
|
|
1635 |
Bitstream bs; |
Bitstream bs; |
1636 |
uint32_t rounding; |
uint32_t rounding; |
1637 |
|
uint32_t reduced_resolution; |
1638 |
uint32_t quant; |
uint32_t quant; |
1639 |
uint32_t fcode; |
uint32_t fcode_forward; |
1640 |
|
uint32_t fcode_backward; |
1641 |
uint32_t intra_dc_threshold; |
uint32_t intra_dc_threshold; |
1642 |
|
VECTOR gmc_mv[5]; |
1643 |
|
uint32_t vop_type; |
1644 |
|
int success = 0; |
1645 |
|
|
1646 |
start_global_timer(); |
start_global_timer(); |
1647 |
|
|
1648 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1649 |
|
|
1650 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1651 |
|
|
1652 |
switch (BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode, &intra_dc_threshold)) |
// XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's |
1653 |
|
if(frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
1654 |
|
{ |
1655 |
|
if (stats) |
1656 |
|
stats->notify = XVID_DEC_VOP; |
1657 |
|
frame->length = 1; |
1658 |
|
image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, |
1659 |
|
frame->image, frame->stride, frame->colorspace, dec->interlacing); |
1660 |
|
emms(); |
1661 |
|
return XVID_ERR_OK; |
1662 |
|
} |
1663 |
|
|
1664 |
|
start: |
1665 |
|
// add by chenm001 <chenm001@163.com> |
1666 |
|
// for support B-frame to reference last 2 frame |
1667 |
|
dec->frames++; |
1668 |
|
|
1669 |
|
xxx: |
1670 |
|
vop_type = |
1671 |
|
BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
1672 |
|
&quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, gmc_mv); |
1673 |
|
|
1674 |
|
//DPRINTF(DPRINTF_HEADER, "vop_type=%i", vop_type); |
1675 |
|
|
1676 |
|
if (vop_type == -1 && success) |
1677 |
|
goto done; |
1678 |
|
|
1679 |
|
if (vop_type == -2 || vop_type == -3) |
1680 |
|
{ |
1681 |
|
if (vop_type == -3) |
1682 |
|
decoder_resize(dec); |
1683 |
|
|
1684 |
|
if (stats) |
1685 |
{ |
{ |
1686 |
|
stats->notify = XVID_DEC_VOL; |
1687 |
|
stats->data.vol.general = 0; |
1688 |
|
if (dec->interlacing) |
1689 |
|
stats->data.vol.general |= XVID_INTERLACING; |
1690 |
|
stats->data.vol.width = dec->width; |
1691 |
|
stats->data.vol.height = dec->height; |
1692 |
|
stats->data.vol.aspect_ratio = dec->aspect_ratio; |
1693 |
|
stats->data.vol.par_width = dec->par_width; |
1694 |
|
stats->data.vol.par_height = dec->par_height; |
1695 |
|
frame->length = BitstreamPos(&bs) / 8; |
1696 |
|
return XVID_ERR_OK; |
1697 |
|
} |
1698 |
|
goto xxx; |
1699 |
|
} |
1700 |
|
|
1701 |
|
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; // init pred vector to 0 |
1702 |
|
|
1703 |
|
switch (vop_type) { |
1704 |
case P_VOP : |
case P_VOP : |
1705 |
decoder_pframe(dec, &bs, rounding, quant, fcode, intra_dc_threshold); |
decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1706 |
|
fcode_forward, intra_dc_threshold, NULL); |
1707 |
|
#ifdef BFRAMES_DEC |
1708 |
|
DEBUG1("P_VOP Time=", dec->time); |
1709 |
|
#endif |
1710 |
break; |
break; |
1711 |
|
|
1712 |
case I_VOP : |
case I_VOP : |
1713 |
//DEBUG1("",intra_dc_threshold); |
decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); |
1714 |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
#ifdef BFRAMES_DEC |
1715 |
|
DEBUG1("I_VOP Time=", dec->time); |
1716 |
|
#endif |
1717 |
|
break; |
1718 |
|
|
1719 |
|
case B_VOP: |
1720 |
|
#ifdef BFRAMES_DEC |
1721 |
|
if (dec->time_pp > dec->time_bp) { |
1722 |
|
DEBUG1("B_VOP Time=", dec->time); |
1723 |
|
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1724 |
|
} else { |
1725 |
|
DEBUG("broken B-frame!"); |
1726 |
|
} |
1727 |
|
#else |
1728 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1729 |
|
#endif |
1730 |
break; |
break; |
1731 |
|
|
1732 |
case B_VOP : // ignore |
case S_VOP : |
1733 |
|
decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1734 |
|
fcode_forward, intra_dc_threshold, gmc_mv); |
1735 |
break; |
break; |
1736 |
|
|
1737 |
case N_VOP : // vop not coded |
case N_VOP : // vop not coded |
1738 |
|
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
1739 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1740 |
|
#ifdef BFRAMES_DEC |
1741 |
|
DEBUG1("N_VOP Time=", dec->time); |
1742 |
|
#endif |
1743 |
break; |
break; |
1744 |
|
|
1745 |
default : |
default : |
1746 |
|
if (stats) |
1747 |
|
stats->notify = 0; |
1748 |
|
|
1749 |
|
emms(); |
1750 |
return XVID_ERR_FAIL; |
return XVID_ERR_FAIL; |
1751 |
} |
} |
1752 |
|
|
|
frame->length = BitstreamPos(&bs) / 8; |
|
1753 |
|
|
1754 |
start_timer(); |
/* reduced resolution deblocking filter */ |
1755 |
|
|
1756 |
|
if (reduced_resolution) |
1757 |
|
{ |
1758 |
|
const int rmb_width = (dec->width + 31) / 32; |
1759 |
|
const int rmb_height = (dec->height + 31) / 32; |
1760 |
|
const int edged_width2 = dec->edged_width /2; |
1761 |
|
int i,j; |
1762 |
|
|
1763 |
|
/* horizontal deblocking */ |
1764 |
|
|
1765 |
|
for (j = 1; j < rmb_height*2; j++) // luma: j,i in block units |
1766 |
|
for (i = 0; i < rmb_width*2; i++) |
1767 |
|
{ |
1768 |
|
if (dec->mbs[(j-1)/2*dec->mb_width + (i/2)].mode != MODE_NOT_CODED || |
1769 |
|
dec->mbs[(j+0)/2*dec->mb_width + (i/2)].mode != MODE_NOT_CODED) |
1770 |
|
{ |
1771 |
|
xvid_HFilter_31_C(dec->cur.y + (j*16 - 1)*dec->edged_width + i*16, |
1772 |
|
dec->cur.y + (j*16 + 0)*dec->edged_width + i*16, 2); |
1773 |
|
} |
1774 |
|
} |
1775 |
|
|
1776 |
|
for (j = 1; j < rmb_height; j++) // chroma |
1777 |
|
for (i = 0; i < rmb_width; i++) |
1778 |
|
{ |
1779 |
|
if (dec->mbs[(j-1)*dec->mb_width + i].mode != MODE_NOT_CODED || |
1780 |
|
dec->mbs[(j+0)*dec->mb_width + i].mode != MODE_NOT_CODED) |
1781 |
|
{ |
1782 |
|
hfilter_31(dec->cur.u + (j*16 - 1)*edged_width2 + i*16, |
1783 |
|
dec->cur.u + (j*16 + 0)*edged_width2 + i*16, 2); |
1784 |
|
hfilter_31(dec->cur.v + (j*16 - 1)*edged_width2 + i*16, |
1785 |
|
dec->cur.v + (j*16 + 0)*edged_width2 + i*16, 2); |
1786 |
|
} |
1787 |
|
} |
1788 |
|
|
1789 |
|
/* vertical deblocking */ |
1790 |
|
|
1791 |
|
for (j = 0; j < rmb_height*2; j++) // luma: i,j in block units |
1792 |
|
for (i = 1; i < rmb_width*2; i++) |
1793 |
|
{ |
1794 |
|
if (dec->mbs[(j/2)*dec->mb_width + (i-1)/2].mode != MODE_NOT_CODED || |
1795 |
|
dec->mbs[(j/2)*dec->mb_width + (i+0)/2].mode != MODE_NOT_CODED) |
1796 |
|
{ |
1797 |
|
vfilter_31(dec->cur.y + (j*16)*dec->edged_width + i*16 - 1, |
1798 |
|
dec->cur.y + (j*16)*dec->edged_width + i*16 + 0, |
1799 |
|
dec->edged_width, 2); |
1800 |
|
} |
1801 |
|
} |
1802 |
|
|
1803 |
|
for (j = 0; j < rmb_height; j++) // chroma |
1804 |
|
for (i = 1; i < rmb_width; i++) |
1805 |
|
{ |
1806 |
|
if (dec->mbs[j*dec->mb_width + i - 1].mode != MODE_NOT_CODED || |
1807 |
|
dec->mbs[j*dec->mb_width + i + 0].mode != MODE_NOT_CODED) |
1808 |
|
{ |
1809 |
|
vfilter_31(dec->cur.u + (j*16)*edged_width2 + i*16 - 1, |
1810 |
|
dec->cur.u + (j*16)*edged_width2 + i*16 + 0, |
1811 |
|
edged_width2, 2); |
1812 |
|
vfilter_31(dec->cur.v + (j*16)*edged_width2 + i*16 - 1, |
1813 |
|
dec->cur.v + (j*16)*edged_width2 + i*16 + 0, |
1814 |
|
edged_width2, 2); |
1815 |
|
} |
1816 |
|
} |
1817 |
|
} |
1818 |
|
|
1819 |
|
BitstreamByteAlign(&bs); |
1820 |
|
|
1821 |
|
#ifdef BFRAMES_DEC |
1822 |
|
// test if no B_VOP |
1823 |
|
if (dec->low_delay || dec->frames == 0 || ((dec->packed_mode) && !(frame->length > BitstreamPos(&bs) / 8))) { |
1824 |
|
#endif |
1825 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1826 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace, dec->interlacing); |
1827 |
|
|
1828 |
|
#ifdef BFRAMES_DEC |
1829 |
|
} else { |
1830 |
|
if (dec->frames >= 1 && !(dec->packed_mode)) { |
1831 |
|
start_timer(); |
1832 |
|
if ((vop_type == I_VOP || vop_type == P_VOP || vop_type == S_VOP)) { |
1833 |
|
image_output(&dec->refn[0], dec->width, dec->height, |
1834 |
|
dec->edged_width, frame->image, frame->stride, |
1835 |
|
frame->colorspace, dec->interlacing); |
1836 |
|
} else if (vop_type == B_VOP) { |
1837 |
|
image_output(&dec->cur, dec->width, dec->height, |
1838 |
|
dec->edged_width, frame->image, frame->stride, |
1839 |
|
frame->colorspace, dec->interlacing); |
1840 |
|
} |
1841 |
stop_conv_timer(); |
stop_conv_timer(); |
1842 |
|
} |
1843 |
|
} |
1844 |
|
#endif |
1845 |
|
|
1846 |
|
if (vop_type == I_VOP || vop_type == P_VOP || vop_type == S_VOP) { |
1847 |
|
image_swap(&dec->refn[0], &dec->refn[1]); |
1848 |
|
image_swap(&dec->cur, &dec->refn[0]); |
1849 |
|
|
1850 |
|
// swap MACROBLOCK |
1851 |
|
// the Divx will not set the low_delay flage some times |
1852 |
|
// so follow code will wrong to not swap at that time |
1853 |
|
// this will broken bitstream! so I'm change it, |
1854 |
|
// But that is not the best way! can anyone tell me how |
1855 |
|
// to do another way? |
1856 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1857 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1858 |
|
if (vop_type == P_VOP) |
1859 |
|
mb_swap(&dec->mbs, &dec->last_mbs); |
1860 |
|
} |
1861 |
|
|
1862 |
|
|
1863 |
|
if (success == 0 && dec->packed_mode) |
1864 |
|
{ |
1865 |
|
success = 1; |
1866 |
|
// if (frame->length > BitstreamPos(&bs) / 8) // multiple vops packed together |
1867 |
|
goto start; |
1868 |
|
} |
1869 |
|
|
1870 |
|
done : |
1871 |
|
|
1872 |
|
frame->length = BitstreamPos(&bs) / 8; |
1873 |
|
|
1874 |
|
if (stats) |
1875 |
|
{ |
1876 |
|
stats->notify = XVID_DEC_VOP; |
1877 |
|
stats->data.vop.time_base = (int)dec->time_base; |
1878 |
|
stats->data.vop.time_increment = 0; //XXX: todo |
1879 |
|
} |
1880 |
|
|
1881 |
emms(); |
emms(); |
1882 |
|
|