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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 module - |
* - Decoder Module - |
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* |
* |
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* This program is an implementation of a part of one or more MPEG-4 |
* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* This 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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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
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/************************************************************************** |
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* |
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* History: |
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* |
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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 |
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* 26.12.2001 decoder_mbinter: dequant/idct moved within if(coded) block |
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* 22.12.2001 lock based interpolation |
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* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
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* |
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* $Id$ |
* $Id$ |
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* |
* |
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*************************************************************************/ |
****************************************************************************/ |
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#include <stdio.h> |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
#include <string.h> |
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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 "global.h" |
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#include "decoder.h" |
#include "decoder.h" |
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#include "bitstream/bitstream.h" |
#include "bitstream/bitstream.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 "image/reduced.h" |
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#include "image/font.h" |
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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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int |
int |
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decoder_create(XVID_DEC_PARAM * param) |
decoder_resize(DECODER * dec) |
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{ |
{ |
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DECODER *dec; |
/* free existing */ |
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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->tmp, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); |
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dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
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if (dec == NULL) { |
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return XVID_ERR_MEMORY; |
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} |
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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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dec->low_delay = 0; |
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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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xvid_free(dec); |
xvid_free(dec); |
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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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// add by chenm001 <chenm001@163.com> |
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// for support B-frame to reference last 2 frame |
/* Support B-frame to reference last 2 frame */ |
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if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
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); |
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); |
image_destroy(&dec->refn[0], 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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if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) { |
if (image_create(&dec->tmp, 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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image_destroy(&dec->refn[0], 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); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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if (image_create(&dec->qtmp, 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->tmp, 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->gmc, dec->edged_width, dec->edged_height)) { |
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image_destroy(&dec->qtmp, 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->tmp, dec->edged_width, dec->edged_height); |
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xvid_free(dec); |
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return XVID_ERR_MEMORY; |
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} |
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dec->mbs = |
dec->mbs = |
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xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
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CACHE_LINE); |
CACHE_LINE); |
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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); |
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); |
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); |
image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->qtmp, 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->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
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// add by chenm001 <chenm001@163.com> |
/* For skip MB flag */ |
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// for skip MB flag |
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dec->last_mbs = |
dec->last_mbs = |
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xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
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CACHE_LINE); |
CACHE_LINE); |
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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); |
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); |
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); |
image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->qtmp, 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); |
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->tmp); |
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image_null(&dec->qtmp); |
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/* image based GMC */ |
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image_null(&dec->gmc); |
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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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// add by chenm001 <chenm001@163.com> |
/* For B-frame support (used to save reference frame's time */ |
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// for support B-frame to save reference frame's time |
dec->frames = 0; |
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dec->frames = -1; |
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dec->time = dec->time_base = dec->last_time_base = 0; |
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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{ |
{ |
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xvid_free(dec->last_mbs); |
xvid_free(dec->last_mbs); |
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xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
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/* image based GMC */ |
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image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->refn[0], 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); |
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); |
image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
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image_destroy(&dec->qtmp, 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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// decode an intra macroblock |
/* decode an intra macroblock */ |
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void |
void |
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decoder_mbintra(DECODER * dec, |
decoder_mbintra(DECODER * dec, |
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MACROBLOCK * pMB, |
MACROBLOCK * pMB, |
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Bitstream * bs, |
Bitstream * bs, |
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const uint32_t quant, |
const uint32_t quant, |
250 |
const uint32_t intra_dc_threshold, |
const uint32_t intra_dc_threshold, |
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const unsigned int bound) |
const unsigned int bound, |
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const int reduced_resolution) |
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{ |
{ |
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DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
262 |
uint32_t iQuant = pMB->quant; |
uint32_t iQuant = pMB->quant; |
263 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
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if (reduced_resolution) { |
266 |
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pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); |
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pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); |
268 |
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pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); |
269 |
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}else{ |
270 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
271 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
272 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
273 |
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} |
274 |
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memset(block, 0, 6 * 64 * sizeof(int16_t)); // clear |
memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ |
276 |
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277 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
278 |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
295 |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; |
296 |
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297 |
if (dc_size > 8) { |
if (dc_size > 8) { |
298 |
BitstreamSkip(bs, 1); // marker |
BitstreamSkip(bs, 1); /* marker */ |
299 |
} |
} |
300 |
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301 |
block[i * 64 + 0] = dc_dif; |
block[i * 64 + 0] = dc_dif; |
307 |
} |
} |
308 |
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309 |
start_timer(); |
start_timer(); |
310 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
311 |
{ |
{ |
312 |
get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], |
int direction = dec->alternate_vertical_scan ? |
313 |
start_coeff); |
2 : pMB->acpred_directions[i]; |
314 |
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315 |
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get_intra_block(bs, &block[i * 64], direction, start_coeff); |
316 |
} |
} |
317 |
stop_coding_timer(); |
stop_coding_timer(); |
318 |
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331 |
start_timer(); |
start_timer(); |
332 |
idct(&data[i * 64]); |
idct(&data[i * 64]); |
333 |
stop_idct_timer(); |
stop_idct_timer(); |
334 |
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335 |
} |
} |
336 |
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337 |
if (dec->interlacing && pMB->field_dct) { |
if (dec->interlacing && pMB->field_dct) { |
340 |
} |
} |
341 |
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342 |
start_timer(); |
start_timer(); |
343 |
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344 |
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if (reduced_resolution) |
345 |
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{ |
346 |
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next_block*=2; |
347 |
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copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); |
348 |
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copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); |
349 |
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copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); |
350 |
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copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); |
351 |
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copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); |
352 |
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copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); |
353 |
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}else{ |
354 |
transfer_16to8copy(pY_Cur, &data[0 * 64], stride); |
transfer_16to8copy(pY_Cur, &data[0 * 64], stride); |
355 |
transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); |
transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); |
356 |
transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); |
transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); |
357 |
transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
358 |
transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); |
transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); |
359 |
transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); |
transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); |
360 |
|
} |
361 |
stop_transfer_timer(); |
stop_transfer_timer(); |
362 |
} |
} |
363 |
|
|
364 |
|
|
365 |
|
|
366 |
|
|
367 |
|
/* decode an inter macroblock */ |
|
#define SIGN(X) (((X)>0)?1:-1) |
|
|
#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 }; |
|
|
|
|
|
|
|
|
// decode an inter macroblock |
|
|
|
|
368 |
void |
void |
369 |
decoder_mbinter(DECODER * dec, |
decoder_mbinter(DECODER * dec, |
370 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
371 |
const uint32_t x_pos, |
const uint32_t x_pos, |
372 |
const uint32_t y_pos, |
const uint32_t y_pos, |
373 |
const uint32_t acpred_flag, |
const uint32_t fcode, |
374 |
const uint32_t cbp, |
const uint32_t cbp, |
375 |
Bitstream * bs, |
Bitstream * bs, |
376 |
const uint32_t quant, |
const uint32_t quant, |
377 |
const uint32_t rounding) |
const uint32_t rounding, |
378 |
|
const int reduced_resolution) |
379 |
{ |
{ |
380 |
|
|
381 |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
383 |
|
|
384 |
uint32_t stride = dec->edged_width; |
uint32_t stride = dec->edged_width; |
385 |
uint32_t stride2 = stride / 2; |
uint32_t stride2 = stride / 2; |
386 |
uint32_t next_block = stride * 8; |
uint32_t next_block = stride * (reduced_resolution ? 16 : 8); |
387 |
uint32_t i; |
uint32_t i; |
388 |
uint32_t iQuant = pMB->quant; |
uint32_t iQuant = pMB->quant; |
389 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
390 |
|
|
391 |
int uv_dx, uv_dy; |
int uv_dx, uv_dy; |
392 |
|
VECTOR mv[4]; /* local copy of mvs */ |
393 |
|
|
394 |
|
if (reduced_resolution) { |
395 |
|
pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); |
396 |
|
pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); |
397 |
|
pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); |
398 |
|
for (i = 0; i < 4; i++) { |
399 |
|
mv[i].x = RRV_MV_SCALEUP(pMB->mvs[i].x); |
400 |
|
mv[i].y = RRV_MV_SCALEUP(pMB->mvs[i].y); |
401 |
|
} |
402 |
|
} else { |
403 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
404 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
405 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
406 |
|
for (i = 0; i < 4; i++) |
407 |
|
mv[i] = pMB->mvs[i]; |
408 |
|
} |
409 |
|
|
410 |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
|
uv_dx = pMB->mvs[0].x; |
|
|
uv_dy = pMB->mvs[0].y; |
|
411 |
|
|
412 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = mv[0].x / (1 + dec->quarterpel); |
413 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = mv[0].y / (1 + dec->quarterpel); |
|
} else { |
|
|
int sum; |
|
414 |
|
|
415 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
416 |
uv_dx = |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
417 |
(sum == |
|
418 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
start_timer(); |
419 |
(ABS(sum) / 16) * 2)); |
if (reduced_resolution) |
420 |
|
{ |
421 |
|
interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
422 |
|
mv[0].x, mv[0].y, stride, rounding); |
423 |
|
interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, |
424 |
|
uv_dx, uv_dy, stride2, rounding); |
425 |
|
interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, |
426 |
|
uv_dx, uv_dy, stride2, rounding); |
427 |
|
|
428 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
} |
429 |
uv_dy = |
else |
430 |
(sum == |
{ |
431 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
if(dec->quarterpel) { |
432 |
(ABS(sum) / 16) * 2)); |
interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->qtmp.y, dec->qtmp.y + 64, |
433 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
434 |
|
mv[0].x, mv[0].y, stride, rounding); |
435 |
|
} |
436 |
|
else { |
437 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
438 |
|
mv[0].x, mv[0].y, stride, rounding); |
439 |
} |
} |
440 |
|
|
441 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
442 |
|
uv_dx, uv_dy, stride2, rounding); |
443 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
444 |
|
uv_dx, uv_dy, stride2, rounding); |
445 |
|
} |
446 |
|
stop_comp_timer(); |
447 |
|
|
448 |
|
} else { /* MODE_INTER4V */ |
449 |
|
int sum; |
450 |
|
|
451 |
|
if(dec->quarterpel) |
452 |
|
sum = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); |
453 |
|
else |
454 |
|
sum = mv[0].x + mv[1].x + mv[2].x + mv[3].x; |
455 |
|
|
456 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
457 |
|
|
458 |
|
if(dec->quarterpel) |
459 |
|
sum = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); |
460 |
|
else |
461 |
|
sum = mv[0].y + mv[1].y + mv[2].y + mv[3].y; |
462 |
|
|
463 |
|
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
464 |
|
|
465 |
start_timer(); |
start_timer(); |
466 |
|
if (reduced_resolution) |
467 |
|
{ |
468 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
469 |
|
mv[0].x, mv[0].y, stride, rounding); |
470 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos, |
471 |
|
mv[1].x, mv[1].y, stride, rounding); |
472 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos, 32*y_pos + 16, |
473 |
|
mv[2].x, mv[2].y, stride, rounding); |
474 |
|
interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos + 16, |
475 |
|
mv[3].x, mv[3].y, stride, rounding); |
476 |
|
interpolate16x16_switch(dec->cur.u, dec->refn[0].u , 16 * x_pos, 16 * y_pos, |
477 |
|
uv_dx, uv_dy, stride2, rounding); |
478 |
|
interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, |
479 |
|
uv_dx, uv_dy, stride2, rounding); |
480 |
|
|
481 |
|
/* set_block(pY_Cur, stride, 32, 32, 127); */ |
482 |
|
} |
483 |
|
else |
484 |
|
{ |
485 |
|
if(dec->quarterpel) { |
486 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, |
487 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
488 |
|
mv[0].x, mv[0].y, stride, rounding); |
489 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, |
490 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
491 |
|
mv[1].x, mv[1].y, stride, rounding); |
492 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, |
493 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
494 |
|
mv[2].x, mv[2].y, stride, rounding); |
495 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, |
496 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
497 |
|
mv[3].x, mv[3].y, stride, rounding); |
498 |
|
} |
499 |
|
else { |
500 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
501 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
mv[0].x, mv[0].y, stride, rounding); |
502 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos, |
503 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, |
mv[1].x, mv[1].y, stride, rounding); |
504 |
rounding); |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos + 8, |
505 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, |
mv[2].x, mv[2].y, stride, rounding); |
506 |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos + 8, |
507 |
rounding); |
mv[3].x, mv[3].y, stride, rounding); |
508 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
} |
509 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
|
|
rounding); |
|
510 |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
511 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
512 |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
513 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
514 |
|
} |
515 |
stop_comp_timer(); |
stop_comp_timer(); |
516 |
|
} |
517 |
|
|
518 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
519 |
if (cbp & (1 << (5 - i))) // coded |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
520 |
|
|
521 |
|
if (cbp & (1 << (5 - i))) /* coded */ |
522 |
{ |
{ |
523 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
524 |
|
|
525 |
start_timer(); |
start_timer(); |
526 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
527 |
stop_coding_timer(); |
stop_coding_timer(); |
528 |
|
|
529 |
start_timer(); |
start_timer(); |
546 |
} |
} |
547 |
|
|
548 |
start_timer(); |
start_timer(); |
549 |
|
if (reduced_resolution) |
550 |
|
{ |
551 |
|
if (cbp & 32) |
552 |
|
add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); |
553 |
|
if (cbp & 16) |
554 |
|
add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); |
555 |
|
if (cbp & 8) |
556 |
|
add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); |
557 |
|
if (cbp & 4) |
558 |
|
add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); |
559 |
|
if (cbp & 2) |
560 |
|
add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); |
561 |
|
if (cbp & 1) |
562 |
|
add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); |
563 |
|
} |
564 |
|
else |
565 |
|
{ |
566 |
|
if (cbp & 32) |
567 |
|
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
568 |
|
if (cbp & 16) |
569 |
|
transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
570 |
|
if (cbp & 8) |
571 |
|
transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
572 |
|
if (cbp & 4) |
573 |
|
transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
574 |
|
if (cbp & 2) |
575 |
|
transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
576 |
|
if (cbp & 1) |
577 |
|
transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
578 |
|
} |
579 |
|
stop_transfer_timer(); |
580 |
|
} |
581 |
|
|
582 |
|
static __inline int gmc_sanitize(int value, int quarterpel, int fcode) |
583 |
|
{ |
584 |
|
int length = 1 << (fcode+4); |
585 |
|
|
586 |
|
/* if (quarterpel) value *= 2; */ |
587 |
|
|
588 |
|
if (value < -length) |
589 |
|
return -length; |
590 |
|
else if (value >= length) |
591 |
|
return length-1; |
592 |
|
else return value; |
593 |
|
} |
594 |
|
|
595 |
|
|
596 |
|
static void |
597 |
|
decoder_mbgmc(DECODER * dec, |
598 |
|
MACROBLOCK * const pMB, |
599 |
|
const uint32_t x_pos, |
600 |
|
const uint32_t y_pos, |
601 |
|
const uint32_t fcode, |
602 |
|
const uint32_t cbp, |
603 |
|
Bitstream * bs, |
604 |
|
const uint32_t quant, |
605 |
|
const uint32_t rounding, |
606 |
|
const int reduced_resolution) /* no reduced res support */ |
607 |
|
{ |
608 |
|
|
609 |
|
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
610 |
|
DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
611 |
|
|
612 |
|
const uint32_t stride = dec->edged_width; |
613 |
|
const uint32_t stride2 = stride / 2; |
614 |
|
const uint32_t next_block = stride * (reduced_resolution ? 16 : 8); |
615 |
|
uint32_t i; |
616 |
|
const uint32_t iQuant = pMB->quant; |
617 |
|
uint8_t *const pY_Cur=dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
618 |
|
uint8_t *const pU_Cur=dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
619 |
|
uint8_t *const pV_Cur=dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
620 |
|
|
621 |
|
pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
622 |
|
|
623 |
|
start_timer(); |
624 |
|
|
625 |
|
/* this is where the calculations are done */ |
626 |
|
|
627 |
|
{ |
628 |
|
pMB->amv = generate_GMCimageMB(&dec->gmc_data, &dec->refn[0], x_pos, y_pos, |
629 |
|
stride, stride2, dec->quarterpel, rounding, &dec->cur); |
630 |
|
|
631 |
|
pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); |
632 |
|
pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); |
633 |
|
} |
634 |
|
pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
635 |
|
|
636 |
|
/* |
637 |
|
transfer16x16_copy(pY_Cur, dec->gmc.y + (y_pos << 4)*stride + (x_pos << 4), stride); |
638 |
|
transfer8x8_copy(pU_Cur, dec->gmc.u + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
639 |
|
transfer8x8_copy(pV_Cur, dec->gmc.v + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
640 |
|
*/ |
641 |
|
|
642 |
|
|
643 |
|
stop_transfer_timer(); |
644 |
|
|
645 |
|
if (!cbp) return; |
646 |
|
|
647 |
|
for (i = 0; i < 6; i++) { |
648 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
649 |
|
|
650 |
|
if (cbp & (1 << (5 - i))) /* coded */ |
651 |
|
{ |
652 |
|
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
653 |
|
|
654 |
|
start_timer(); |
655 |
|
get_inter_block(bs, &block[i * 64], direction); |
656 |
|
stop_coding_timer(); |
657 |
|
|
658 |
|
start_timer(); |
659 |
|
if (dec->quant_type == 0) { |
660 |
|
dequant_inter(&data[i * 64], &block[i * 64], iQuant); |
661 |
|
} else { |
662 |
|
dequant4_inter(&data[i * 64], &block[i * 64], iQuant); |
663 |
|
} |
664 |
|
stop_iquant_timer(); |
665 |
|
|
666 |
|
start_timer(); |
667 |
|
idct(&data[i * 64]); |
668 |
|
stop_idct_timer(); |
669 |
|
} |
670 |
|
} |
671 |
|
|
672 |
|
/* interlace + GMC is this possible ??? */ |
673 |
|
/* |
674 |
|
if (dec->interlacing && pMB->field_dct) { |
675 |
|
next_block = stride; |
676 |
|
stride *= 2; |
677 |
|
} |
678 |
|
*/ |
679 |
|
start_timer(); |
680 |
if (cbp & 32) |
if (cbp & 32) |
681 |
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
682 |
if (cbp & 16) |
if (cbp & 16) |
696 |
void |
void |
697 |
decoder_iframe(DECODER * dec, |
decoder_iframe(DECODER * dec, |
698 |
Bitstream * bs, |
Bitstream * bs, |
699 |
|
int reduced_resolution, |
700 |
int quant, |
int quant, |
701 |
int intra_dc_threshold) |
int intra_dc_threshold) |
702 |
{ |
{ |
703 |
uint32_t bound; |
uint32_t bound; |
704 |
uint32_t x, y; |
uint32_t x, y; |
705 |
|
uint32_t mb_width = dec->mb_width; |
706 |
|
uint32_t mb_height = dec->mb_height; |
707 |
|
|
708 |
|
if (reduced_resolution) |
709 |
|
{ |
710 |
|
mb_width = (dec->width + 31) / 32; |
711 |
|
mb_height = (dec->height + 31) / 32; |
712 |
|
} |
713 |
|
|
714 |
bound = 0; |
bound = 0; |
715 |
|
|
716 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < mb_height; y++) { |
717 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < mb_width; x++) { |
718 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
719 |
uint32_t mcbpc; |
uint32_t mcbpc; |
720 |
uint32_t cbpc; |
uint32_t cbpc; |
727 |
|
|
728 |
if (check_resync_marker(bs, 0)) |
if (check_resync_marker(bs, 0)) |
729 |
{ |
{ |
730 |
bound = read_video_packet_header(bs, 0, &quant); |
bound = read_video_packet_header(bs, dec, 0, |
731 |
x = bound % dec->mb_width; |
&quant, NULL, NULL, &intra_dc_threshold); |
732 |
y = bound / dec->mb_width; |
x = bound % mb_width; |
733 |
|
y = bound / mb_width; |
734 |
} |
} |
735 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
736 |
|
|
754 |
} |
} |
755 |
} |
} |
756 |
mb->quant = quant; |
mb->quant = quant; |
757 |
|
mb->mvs[0].x = mb->mvs[0].y = |
758 |
|
mb->mvs[1].x = mb->mvs[1].y = |
759 |
|
mb->mvs[2].x = mb->mvs[2].y = |
760 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
761 |
|
|
762 |
if (dec->interlacing) { |
if (dec->interlacing) { |
763 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
764 |
DEBUG1("deci: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_MB,"deci: field_dct: %i", mb->field_dct); |
765 |
} |
} |
766 |
|
|
767 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
768 |
intra_dc_threshold, bound); |
intra_dc_threshold, bound, reduced_resolution); |
769 |
|
|
770 |
} |
} |
771 |
|
if(dec->out_frm) |
772 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); |
773 |
} |
} |
774 |
|
|
775 |
} |
} |
781 |
int x, |
int x, |
782 |
int y, |
int y, |
783 |
int k, |
int k, |
784 |
VECTOR * mv, |
VECTOR * ret_mv, |
785 |
int fcode, |
int fcode, |
786 |
const int bound) |
const int bound) |
787 |
{ |
{ |
792 |
int range = (64 * scale_fac); |
int range = (64 * scale_fac); |
793 |
|
|
794 |
VECTOR pmv; |
VECTOR pmv; |
795 |
int mv_x, mv_y; |
VECTOR mv; |
796 |
|
|
797 |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
798 |
|
|
799 |
mv_x = get_mv(bs, fcode); |
mv.x = get_mv(bs, fcode); |
800 |
mv_y = get_mv(bs, fcode); |
mv.y = get_mv(bs, fcode); |
801 |
|
|
802 |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv_x, mv_y, pmv.x, pmv.y); |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", mv.x, mv.y, pmv.x, pmv.y, mv.x+pmv.x, mv.y+pmv.y); |
803 |
|
|
804 |
mv_x += pmv.x; |
mv.x += pmv.x; |
805 |
mv_y += pmv.y; |
mv.y += pmv.y; |
806 |
|
|
807 |
if (mv_x < low) { |
if (mv.x < low) { |
808 |
mv_x += range; |
mv.x += range; |
809 |
} else if (mv_x > high) { |
} else if (mv.x > high) { |
810 |
mv_x -= range; |
mv.x -= range; |
811 |
} |
} |
812 |
|
|
813 |
if (mv_y < low) { |
if (mv.y < low) { |
814 |
mv_y += range; |
mv.y += range; |
815 |
} else if (mv_y > high) { |
} else if (mv.y > high) { |
816 |
mv_y -= range; |
mv.y -= range; |
817 |
} |
} |
818 |
|
|
819 |
mv->x = mv_x; |
ret_mv->x = mv.x; |
820 |
mv->y = mv_y; |
ret_mv->y = mv.y; |
|
|
|
821 |
} |
} |
822 |
|
|
823 |
|
|
824 |
|
|
825 |
|
|
826 |
|
|
827 |
|
/* for P_VOP set gmc_warp to NULL */ |
828 |
void |
void |
829 |
decoder_pframe(DECODER * dec, |
decoder_pframe(DECODER * dec, |
830 |
Bitstream * bs, |
Bitstream * bs, |
831 |
int rounding, |
int rounding, |
832 |
|
int reduced_resolution, |
833 |
int quant, |
int quant, |
834 |
int fcode, |
int fcode, |
835 |
int intra_dc_threshold) |
int intra_dc_threshold, |
836 |
|
const WARPPOINTS *const gmc_warp) |
837 |
{ |
{ |
838 |
|
|
839 |
uint32_t x, y; |
uint32_t x, y; |
840 |
uint32_t bound; |
uint32_t bound; |
841 |
|
int cp_mb, st_mb; |
842 |
|
uint32_t mb_width = dec->mb_width; |
843 |
|
uint32_t mb_height = dec->mb_height; |
844 |
|
|
845 |
|
if (reduced_resolution) |
846 |
|
{ |
847 |
|
mb_width = (dec->width + 31) / 32; |
848 |
|
mb_height = (dec->height + 31) / 32; |
849 |
|
} |
850 |
|
|
851 |
start_timer(); |
start_timer(); |
852 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
853 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
854 |
stop_edges_timer(); |
stop_edges_timer(); |
855 |
|
|
856 |
|
if (gmc_warp) |
857 |
|
{ |
858 |
|
|
859 |
|
/* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
860 |
|
if ( (dec->sprite_warping_accuracy != 3) || (dec->sprite_warping_points != 2) ) |
861 |
|
{ |
862 |
|
fprintf(stderr,"Wrong GMC parameters acc=%d(-> 1/%d), %d!!!\n", |
863 |
|
dec->sprite_warping_accuracy,(2<<dec->sprite_warping_accuracy), |
864 |
|
dec->sprite_warping_points); |
865 |
|
} |
866 |
|
|
867 |
|
generate_GMCparameters( dec->sprite_warping_points, |
868 |
|
(2 << dec->sprite_warping_accuracy), gmc_warp, |
869 |
|
dec->width, dec->height, &dec->gmc_data); |
870 |
|
|
871 |
|
/* image warping is done block-based in decoder_mbgmc(), now */ |
872 |
|
/* |
873 |
|
generate_GMCimage(&dec->gmc_data, &dec->refn[0], |
874 |
|
mb_width, mb_height, |
875 |
|
dec->edged_width, dec->edged_width/2, |
876 |
|
fcode, dec->quarterpel, 0, |
877 |
|
rounding, dec->mbs, &dec->gmc); |
878 |
|
*/ |
879 |
|
} |
880 |
|
|
881 |
bound = 0; |
bound = 0; |
882 |
|
|
883 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < mb_height; y++) { |
884 |
for (x = 0; x < dec->mb_width; x++) { |
cp_mb = st_mb = 0; |
885 |
|
for (x = 0; x < mb_width; x++) { |
886 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
887 |
|
|
888 |
// skip stuffing |
/* skip stuffing */ |
889 |
while (BitstreamShowBits(bs, 10) == 1) |
while (BitstreamShowBits(bs, 10) == 1) |
890 |
BitstreamSkip(bs, 10); |
BitstreamSkip(bs, 10); |
891 |
|
|
892 |
if (check_resync_marker(bs, fcode - 1)) |
if (check_resync_marker(bs, fcode - 1)) |
893 |
{ |
{ |
894 |
bound = read_video_packet_header(bs, fcode - 1, &quant); |
bound = read_video_packet_header(bs, dec, fcode - 1, |
895 |
x = bound % dec->mb_width; |
&quant, &fcode, NULL, &intra_dc_threshold); |
896 |
y = bound / dec->mb_width; |
x = bound % mb_width; |
897 |
|
y = bound / mb_width; |
898 |
} |
} |
899 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
900 |
|
|
901 |
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
902 |
|
|
903 |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
/* if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) */ /* not_coded */ |
904 |
if (!(BitstreamGetBit(bs))) // not_coded |
if (!(BitstreamGetBit(bs))) /* block _is_ coded */ |
905 |
{ |
{ |
906 |
uint32_t mcbpc; |
uint32_t mcbpc; |
907 |
uint32_t cbpc; |
uint32_t cbpc; |
909 |
uint32_t cbpy; |
uint32_t cbpy; |
910 |
uint32_t cbp; |
uint32_t cbp; |
911 |
uint32_t intra; |
uint32_t intra; |
912 |
|
int mcsel = 0; /* mcsel: '0'=local motion, '1'=GMC */ |
913 |
|
|
914 |
|
cp_mb++; |
915 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
916 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
917 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
926 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
927 |
} |
} |
928 |
|
|
929 |
|
if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
930 |
|
{ |
931 |
|
mcsel = BitstreamGetBit(bs); |
932 |
|
} |
933 |
|
|
934 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
935 |
DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); |
DPRINTF(DPRINTF_MB, "cbpy %i mcsel %i ", cbpy,mcsel); |
936 |
|
|
937 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
938 |
|
|
950 |
mb->quant = quant; |
mb->quant = quant; |
951 |
|
|
952 |
if (dec->interlacing) { |
if (dec->interlacing) { |
953 |
|
if (cbp || intra) { |
954 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
955 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_MB,"decp: field_dct: %i", mb->field_dct); |
956 |
|
} |
957 |
|
|
958 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
959 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
960 |
DEBUG1("decp: field_pred: ", mb->field_pred); |
DPRINTF(DPRINTF_MB, "decp: field_pred: %i", mb->field_pred); |
961 |
|
|
962 |
if (mb->field_pred) { |
if (mb->field_pred) { |
963 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
964 |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
DPRINTF(DPRINTF_MB,"decp: field_for_top: %i", mb->field_for_top); |
965 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
966 |
DEBUG1("decp: field_for_bot: ", mb->field_for_bot); |
DPRINTF(DPRINTF_MB,"decp: field_for_bot: %i", mb->field_for_bot); |
967 |
} |
} |
968 |
} |
} |
969 |
} |
} |
970 |
|
|
971 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mcsel) { |
972 |
|
decoder_mbgmc(dec, mb, x, y, fcode, cbp, bs, quant, |
973 |
|
rounding, reduced_resolution); |
974 |
|
continue; |
975 |
|
|
976 |
|
} else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
977 |
|
|
978 |
if (dec->interlacing && mb->field_pred) { |
if (dec->interlacing && mb->field_pred) { |
979 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
980 |
fcode, bound); |
fcode, bound); |
983 |
} else { |
} else { |
984 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
985 |
fcode, bound); |
fcode, bound); |
986 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
987 |
} |
} |
988 |
} else if (mb->mode == |
} else if (mb->mode == MODE_INTER4V ) { |
989 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
|
990 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
991 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
992 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
993 |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); |
994 |
} else // MODE_INTRA, MODE_INTRA_Q |
} else /* MODE_INTRA, MODE_INTRA_Q */ |
995 |
{ |
{ |
996 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
997 |
0; |
0; |
998 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
999 |
0; |
0; |
1000 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
1001 |
intra_dc_threshold, bound); |
intra_dc_threshold, bound, reduced_resolution); |
1002 |
continue; |
continue; |
1003 |
} |
} |
1004 |
|
|
1005 |
decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbinter(dec, mb, x, y, fcode, cbp, bs, quant, |
1006 |
rounding); |
rounding, reduced_resolution); |
1007 |
} else // not coded |
|
1008 |
|
} |
1009 |
|
else if (gmc_warp) /* a not coded S(GMC)-VOP macroblock */ |
1010 |
|
{ |
1011 |
|
mb->mode = MODE_NOT_CODED_GMC; |
1012 |
|
|
1013 |
|
start_timer(); |
1014 |
|
|
1015 |
|
decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, quant, |
1016 |
|
rounding, reduced_resolution); |
1017 |
|
|
1018 |
|
stop_transfer_timer(); |
1019 |
|
|
1020 |
|
if(dec->out_frm && cp_mb > 0) { |
1021 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
1022 |
|
cp_mb = 0; |
1023 |
|
} |
1024 |
|
st_mb = x+1; |
1025 |
|
} |
1026 |
|
else /* not coded P_VOP macroblock */ |
1027 |
{ |
{ |
|
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
|
1028 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
1029 |
|
|
1030 |
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; |
1031 |
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; |
1032 |
|
/* copy macroblock directly from ref to cur */ |
|
// copy macroblock directly from ref to cur |
|
1033 |
|
|
1034 |
start_timer(); |
start_timer(); |
1035 |
|
|
1036 |
transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + |
if (reduced_resolution) |
1037 |
(16 * x), |
{ |
1038 |
dec->refn[0].y + (16 * y) * dec->edged_width + |
transfer32x32_copy(dec->cur.y + (32*y)*dec->edged_width + (32*x), |
1039 |
(16 * x), dec->edged_width); |
dec->refn[0].y + (32*y)*dec->edged_width + (32*x), |
1040 |
|
dec->edged_width); |
1041 |
transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + |
|
1042 |
(16 * x + 8), |
transfer16x16_copy(dec->cur.u + (16*y)*dec->edged_width/2 + (16*x), |
1043 |
dec->refn[0].y + (16 * y) * dec->edged_width + |
dec->refn[0].u + (16*y)*dec->edged_width/2 + (16*x), |
|
(16 * x + 8), dec->edged_width); |
|
|
|
|
|
transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + |
|
|
(16 * x), |
|
|
dec->refn[0].y + (16 * y + |
|
|
8) * dec->edged_width + |
|
|
(16 * x), dec->edged_width); |
|
|
|
|
|
transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + |
|
|
(16 * x + 8), |
|
|
dec->refn[0].y + (16 * y + |
|
|
8) * dec->edged_width + |
|
|
(16 * x + 8), dec->edged_width); |
|
|
|
|
|
transfer8x8_copy(dec->cur.u + (8 * y) * dec->edged_width / 2 + |
|
|
(8 * x), |
|
|
dec->refn[0].u + |
|
|
(8 * y) * dec->edged_width / 2 + (8 * x), |
|
1044 |
dec->edged_width / 2); |
dec->edged_width / 2); |
1045 |
|
|
1046 |
transfer8x8_copy(dec->cur.v + (8 * y) * dec->edged_width / 2 + |
transfer16x16_copy(dec->cur.v + (16*y)*dec->edged_width/2 + (16*x), |
1047 |
(8 * x), |
dec->refn[0].v + (16*y)*dec->edged_width/2 + (16*x), |
|
dec->refn[0].v + |
|
|
(8 * y) * dec->edged_width / 2 + (8 * x), |
|
1048 |
dec->edged_width / 2); |
dec->edged_width / 2); |
1049 |
|
} |
1050 |
|
else |
1051 |
|
{ |
1052 |
|
transfer16x16_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x), |
1053 |
|
dec->refn[0].y + (16*y)*dec->edged_width + (16*x), |
1054 |
|
dec->edged_width); |
1055 |
|
|
1056 |
|
transfer8x8_copy(dec->cur.u + (8*y)*dec->edged_width/2 + (8*x), |
1057 |
|
dec->refn[0].u + (8*y)*dec->edged_width/2 + (8*x), |
1058 |
|
dec->edged_width/2); |
1059 |
|
|
1060 |
|
transfer8x8_copy(dec->cur.v + (8*y)*dec->edged_width/2 + (8*x), |
1061 |
|
dec->refn[0].v + (8*y)*dec->edged_width/2 + (8*x), |
1062 |
|
dec->edged_width/2); |
1063 |
|
} |
1064 |
|
|
1065 |
stop_transfer_timer(); |
stop_transfer_timer(); |
1066 |
|
|
1067 |
|
if(dec->out_frm && cp_mb > 0) { |
1068 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
1069 |
|
cp_mb = 0; |
1070 |
|
} |
1071 |
|
st_mb = x+1; |
1072 |
} |
} |
1073 |
} |
} |
1074 |
|
if(dec->out_frm && cp_mb > 0) |
1075 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
1076 |
} |
} |
1077 |
} |
} |
1078 |
|
|
1079 |
|
|
1080 |
// add by MinChen <chenm001@163.com> |
/* decode B-frame motion vector */ |
|
// decode B-frame motion vector |
|
1081 |
void |
void |
1082 |
get_b_motion_vector(DECODER * dec, |
get_b_motion_vector(DECODER * dec, |
1083 |
Bitstream * bs, |
Bitstream * bs, |
1121 |
} |
} |
1122 |
|
|
1123 |
|
|
1124 |
// add by MinChen <chenm001@163.com> |
/* decode an B-frame forward & backward inter macroblock */ |
|
// decode an B-frame forward & backward inter macroblock |
|
1125 |
void |
void |
1126 |
decoder_bf_mbinter(DECODER * dec, |
decoder_bf_mbinter(DECODER * dec, |
1127 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
1148 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
1149 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
1150 |
|
|
1151 |
|
|
1152 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
1153 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
1154 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1155 |
|
|
1156 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
if (dec->quarterpel) |
1157 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
{ |
1158 |
|
uv_dx /= 2; |
1159 |
|
uv_dy /= 2; |
1160 |
|
} |
1161 |
|
|
1162 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
1163 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
1164 |
} else { |
} else { |
1165 |
int sum; |
int sum; |
1166 |
|
|
1167 |
|
if(dec->quarterpel) |
1168 |
|
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
1169 |
|
else |
1170 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
|
uv_dx = |
|
|
(sum == |
|
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
|
(ABS(sum) / 16) * 2)); |
|
1171 |
|
|
1172 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1173 |
|
|
1174 |
|
if(dec->quarterpel) |
1175 |
|
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
1176 |
|
else |
1177 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
1178 |
uv_dy = |
|
1179 |
(sum == |
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
|
(ABS(sum) / 16) * 2)); |
|
1180 |
} |
} |
1181 |
|
|
1182 |
start_timer(); |
start_timer(); |
1183 |
|
if(dec->quarterpel) { |
1184 |
|
interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->qtmp.y, dec->qtmp.y + 64, |
1185 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1186 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1187 |
|
} |
1188 |
|
else { |
1189 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, 16 * y_pos, |
1190 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1191 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos, |
1192 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1193 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos + 8, |
1194 |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1195 |
0); |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos + 8, |
1196 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, |
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1197 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
} |
1198 |
0); |
|
1199 |
interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, |
1200 |
uv_dx, uv_dy, stride2, 0); |
uv_dx, uv_dy, stride2, 0); |
1201 |
interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, |
1203 |
stop_comp_timer(); |
stop_comp_timer(); |
1204 |
|
|
1205 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1206 |
if (cbp & (1 << (5 - i))) // coded |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1207 |
|
|
1208 |
|
if (cbp & (1 << (5 - i))) /* coded */ |
1209 |
{ |
{ |
1210 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
1211 |
|
|
1212 |
start_timer(); |
start_timer(); |
1213 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
1214 |
stop_coding_timer(); |
stop_coding_timer(); |
1215 |
|
|
1216 |
start_timer(); |
start_timer(); |
1248 |
stop_transfer_timer(); |
stop_transfer_timer(); |
1249 |
} |
} |
1250 |
|
|
1251 |
|
/* decode an B-frame direct & inter macroblock */ |
|
// add by MinChen <chenm001@163.com> |
|
|
// decode an B-frame direct & inter macroblock |
|
1252 |
void |
void |
1253 |
decoder_bf_interpolate_mbinter(DECODER * dec, |
decoder_bf_interpolate_mbinter(DECODER * dec, |
1254 |
IMAGE forward, |
IMAGE forward, |
1256 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
1257 |
const uint32_t x_pos, |
const uint32_t x_pos, |
1258 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
1259 |
Bitstream * bs) |
Bitstream * bs) |
1260 |
{ |
{ |
1261 |
|
|
1270 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
1271 |
uint32_t i; |
uint32_t i; |
1272 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
1273 |
|
const uint32_t cbp = pMB->cbp; |
1274 |
|
|
1275 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
1276 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
1277 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
1278 |
|
|
1279 |
|
|
1280 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
1281 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
1282 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1283 |
|
|
|
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
|
|
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
|
|
|
|
1284 |
b_uv_dx = pMB->b_mvs[0].x; |
b_uv_dx = pMB->b_mvs[0].x; |
1285 |
b_uv_dy = pMB->b_mvs[0].y; |
b_uv_dy = pMB->b_mvs[0].y; |
1286 |
|
|
1287 |
b_uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
if (dec->quarterpel) |
1288 |
b_uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
{ |
1289 |
|
uv_dx /= 2; |
1290 |
|
uv_dy /= 2; |
1291 |
|
|
1292 |
|
b_uv_dx /= 2; |
1293 |
|
b_uv_dy /= 2; |
1294 |
|
} |
1295 |
|
|
1296 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
1297 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
1298 |
|
|
1299 |
|
b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; |
1300 |
|
b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; |
1301 |
} else { |
} else { |
1302 |
int sum; |
int sum; |
1303 |
|
|
1304 |
|
if(dec->quarterpel) |
1305 |
|
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
1306 |
|
else |
1307 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
|
uv_dx = |
|
|
(sum == |
|
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
|
(ABS(sum) / 16) * 2)); |
|
1308 |
|
|
1309 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1310 |
|
|
1311 |
|
if(dec->quarterpel) |
1312 |
|
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
1313 |
|
else |
1314 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
1315 |
uv_dy = |
|
1316 |
(sum == |
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
1317 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
1318 |
(ABS(sum) / 16) * 2)); |
|
1319 |
|
if(dec->quarterpel) |
1320 |
sum = |
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); |
1321 |
pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + |
else |
1322 |
pMB->b_mvs[3].x; |
sum = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; |
1323 |
b_uv_dx = |
|
1324 |
(sum == |
b_uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
1325 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
1326 |
(ABS(sum) / 16) * 2)); |
if(dec->quarterpel) |
1327 |
|
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); |
1328 |
sum = |
else |
1329 |
pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + |
sum = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; |
1330 |
pMB->b_mvs[3].y; |
|
1331 |
b_uv_dy = |
b_uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
(sum == |
|
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
|
|
(ABS(sum) / 16) * 2)); |
|
1332 |
} |
} |
1333 |
|
|
1334 |
|
|
1335 |
start_timer(); |
start_timer(); |
1336 |
|
if(dec->quarterpel) { |
1337 |
|
if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
1338 |
|
interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1339 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1340 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1341 |
|
else { |
1342 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1343 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1344 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1345 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1346 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
1347 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1348 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1349 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
1350 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1351 |
|
interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1352 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1353 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
1354 |
|
} |
1355 |
|
} |
1356 |
|
else { |
1357 |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
1358 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1359 |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
1363 |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, |
1364 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
1365 |
0); |
0); |
1366 |
|
} |
1367 |
|
|
1368 |
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
1369 |
uv_dy, stride2, 0); |
uv_dy, stride2, 0); |
1370 |
interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
1371 |
uv_dy, stride2, 0); |
uv_dy, stride2, 0); |
1372 |
|
|
1373 |
|
|
1374 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, 16 * y_pos, |
if(dec->quarterpel) { |
1375 |
|
if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
1376 |
|
interpolate16x16_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1377 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1378 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1379 |
|
else { |
1380 |
|
interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1381 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1382 |
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1383 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1384 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
1385 |
|
pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); |
1386 |
|
interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1387 |
|
dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
1388 |
|
pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); |
1389 |
|
interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1390 |
|
dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1391 |
|
pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); |
1392 |
|
} |
1393 |
|
} |
1394 |
|
else { |
1395 |
|
interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, 16 * y_pos, |
1396 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1397 |
|
interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, |
1398 |
16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, |
16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, |
1399 |
0); |
0); |
1400 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, |
interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, |
1401 |
16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, |
16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, |
1402 |
stride, 0); |
stride, 0); |
1403 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, |
1404 |
16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, |
16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, |
1405 |
stride, 0); |
stride, 0); |
1406 |
interpolate8x8_switch(dec->refn[2].u, backward.u, 8 * x_pos, 8 * y_pos, |
} |
1407 |
|
|
1408 |
|
interpolate8x8_switch(dec->tmp.u, backward.u, 8 * x_pos, 8 * y_pos, |
1409 |
b_uv_dx, b_uv_dy, stride2, 0); |
b_uv_dx, b_uv_dy, stride2, 0); |
1410 |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->tmp.v, backward.v, 8 * x_pos, 8 * y_pos, |
1411 |
b_uv_dx, b_uv_dy, stride2, 0); |
b_uv_dx, b_uv_dy, stride2, 0); |
1412 |
|
|
1413 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1414 |
stride); |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1415 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, 16 * y_pos, |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, |
1416 |
stride); |
stride, 1, 8); |
1417 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos + 8, |
|
1418 |
stride); |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1419 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1420 |
16 * y_pos + 8, stride); |
dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1421 |
interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8 * x_pos, 8 * y_pos, |
stride, 1, 8); |
1422 |
stride2); |
|
1423 |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1424 |
stride2); |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1425 |
|
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1426 |
|
stride, 1, 8); |
1427 |
|
|
1428 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1429 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1430 |
|
dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1431 |
|
stride, 1, 8); |
1432 |
|
|
1433 |
|
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1434 |
|
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1435 |
|
dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, |
1436 |
|
stride2, 1, 8); |
1437 |
|
|
1438 |
|
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1439 |
|
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1440 |
|
dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, |
1441 |
|
stride2, 1, 8); |
1442 |
|
|
1443 |
stop_comp_timer(); |
stop_comp_timer(); |
1444 |
|
|
1445 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1446 |
if (cbp & (1 << (5 - i))) // coded |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1447 |
|
|
1448 |
|
if (cbp & (1 << (5 - i))) /* coded */ |
1449 |
{ |
{ |
1450 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
1451 |
|
|
1452 |
start_timer(); |
start_timer(); |
1453 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
1454 |
stop_coding_timer(); |
stop_coding_timer(); |
1455 |
|
|
1456 |
start_timer(); |
start_timer(); |
1489 |
} |
} |
1490 |
|
|
1491 |
|
|
1492 |
// add by MinChen <chenm001@163.com> |
/* for decode B-frame dbquant */ |
|
// for decode B-frame dbquant |
|
1493 |
int32_t __inline |
int32_t __inline |
1494 |
get_dbquant(Bitstream * bs) |
get_dbquant(Bitstream * bs) |
1495 |
{ |
{ |
1496 |
if (!BitstreamGetBit(bs)) // '0' |
if (!BitstreamGetBit(bs)) /* '0' */ |
1497 |
return (0); |
return (0); |
1498 |
else if (!BitstreamGetBit(bs)) // '10' |
else if (!BitstreamGetBit(bs)) /* '10' */ |
1499 |
return (-2); |
return (-2); |
1500 |
else |
else /* '11' */ |
1501 |
return (2); // '11' |
return (2); |
1502 |
} |
} |
1503 |
|
|
1504 |
// add by MinChen <chenm001@163.com> |
/* |
1505 |
// for decode B-frame mb_type |
* For decode B-frame mb_type |
1506 |
// bit ret_value |
* bit ret_value |
1507 |
// 1 0 |
* 1 0 |
1508 |
// 01 1 |
* 01 1 |
1509 |
// 001 2 |
* 001 2 |
1510 |
// 0001 3 |
* 0001 3 |
1511 |
|
*/ |
1512 |
int32_t __inline |
int32_t __inline |
1513 |
get_mbtype(Bitstream * bs) |
get_mbtype(Bitstream * bs) |
1514 |
{ |
{ |
1532 |
int fcode_forward, |
int fcode_forward, |
1533 |
int fcode_backward) |
int fcode_backward) |
1534 |
{ |
{ |
|
|
|
1535 |
uint32_t x, y; |
uint32_t x, y; |
1536 |
VECTOR mv, zeromv; |
VECTOR mv; |
1537 |
|
const VECTOR zeromv = {0,0}; |
1538 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1539 |
FILE *fp; |
FILE *fp; |
1540 |
static char first=0; |
static char first=0; |
1545 |
|
|
1546 |
start_timer(); |
start_timer(); |
1547 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1548 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
1549 |
//image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1550 |
|
dec->width, dec->height); |
1551 |
stop_edges_timer(); |
stop_edges_timer(); |
1552 |
|
|
1553 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1557 |
#endif |
#endif |
1558 |
|
|
1559 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1560 |
// Initialize Pred Motion Vector |
/* Initialize Pred Motion Vector */ |
1561 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1562 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1563 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1564 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1565 |
|
|
1566 |
mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = 0; |
mv = |
1567 |
|
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1568 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1569 |
|
|
1570 |
|
/* |
1571 |
|
* skip if the co-located P_VOP macroblock is not coded |
1572 |
|
* if not codec in co-located S_VOP macroblock is _not_ |
1573 |
|
* automatically skipped |
1574 |
|
*/ |
1575 |
|
|
|
// the last P_VOP is skip macroblock ? |
|
1576 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1577 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
/* DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); */ |
|
mb->mb_type = MODE_NOT_CODED; |
|
1578 |
mb->cbp = 0; |
mb->cbp = 0; |
1579 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1580 |
|
mb->mb_type = MODE_NOT_CODED; |
1581 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1582 |
#endif |
#endif |
1583 |
mb->mb_type = MODE_FORWARD; |
mb->mb_type = MODE_FORWARD; |
1584 |
|
mb->quant = last_mb->quant; |
1585 |
|
/* |
1586 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1587 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1588 |
mb->quant = 8; |
*/ |
1589 |
|
|
1590 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1591 |
continue; |
continue; |
1592 |
} |
} |
|
//t=BitstreamShowBits(bs,32); |
|
1593 |
|
|
1594 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { /* modb=='0' */ |
1595 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1596 |
|
|
1597 |
mb->mb_type = get_mbtype(bs); |
mb->mb_type = get_mbtype(bs); |
1598 |
|
|
1599 |
if (!modb2) { // modb=='00' |
if (!modb2) { /* modb=='00' */ |
1600 |
mb->cbp = BitstreamGetBits(bs, 6); |
mb->cbp = BitstreamGetBits(bs, 6); |
1601 |
} else { |
} else { |
1602 |
mb->cbp = 0; |
mb->cbp = 0; |
1609 |
} else if (quant < 1) { |
} else if (quant < 1) { |
1610 |
quant = 1; |
quant = 1; |
1611 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1612 |
} |
} |
|
mb->quant = quant; |
|
1613 |
} else { |
} else { |
1614 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1615 |
mb->cbp = 0; |
mb->cbp = 0; |
1616 |
} |
} |
1617 |
|
|
1618 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1619 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
mb->mode = MODE_INTER4V; |
1620 |
|
/* DEBUG1("Switch bm_type=",mb->mb_type); */ |
1621 |
|
|
1622 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1623 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1624 |
#endif |
#endif |
1625 |
|
|
1626 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1627 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1628 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1629 |
|
|
1630 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1631 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1632 |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
|
dec->time_pp; |
|
1633 |
int i; |
int i; |
1634 |
|
|
1635 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1636 |
mb->mvs[i].x = |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1637 |
(int32_t) ((TRB * last_mb->mvs[i].x) / TRD + |
/ TRD + mv.x); |
1638 |
mb->mvs[0].x); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1639 |
mb->b_mvs[i].x = |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1640 |
(int32_t) ((mb->mvs[0].x == |
/ TRD |
1641 |
0) ? ((TRB - |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1642 |
TRD) * last_mb->mvs[i].x) / |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1643 |
TRD : mb->mvs[i].x - last_mb->mvs[i].x); |
/ TRD + mv.y); |
1644 |
mb->mvs[i].y = |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1645 |
(int32_t) ((TRB * last_mb->mvs[i].y) / TRD + |
? ((TRB - TRD) * last_mb->mvs[i].y) |
1646 |
mb->mvs[0].y); |
/ TRD |
1647 |
mb->b_mvs[i].y = |
: mb->mvs[i].y - last_mb->mvs[i].y); |
|
(int32_t) ((mb->mvs[0].y == |
|
|
0) ? ((TRB - |
|
|
TRD) * last_mb->mvs[i].y) / |
|
|
TRD : mb->mvs[i].y - last_mb->mvs[i].y); |
|
1648 |
} |
} |
1649 |
//DEBUG("B-frame Direct!\n"); |
/* DEBUG("B-frame Direct!\n"); */ |
1650 |
} |
} |
|
mb->mode = MODE_INTER4V; |
|
1651 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1652 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1653 |
break; |
break; |
1654 |
|
|
1655 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1656 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1657 |
dec->p_fmv); |
dec->p_fmv); |
1658 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1659 |
|
|
1660 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1661 |
fcode_backward, dec->p_bmv); |
fcode_backward, dec->p_bmv); |
1662 |
dec->p_bmv.x = mb->b_mvs[1].x = mb->b_mvs[2].x = |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1663 |
mb->b_mvs[3].x = mb->b_mvs[0].x; |
mb->b_mvs[3] = mb->b_mvs[0]; |
|
dec->p_bmv.y = mb->b_mvs[1].y = mb->b_mvs[2].y = |
|
|
mb->b_mvs[3].y = mb->b_mvs[0].y; |
|
1664 |
|
|
1665 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1666 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1667 |
//DEBUG("B-frame Bidir!\n"); |
/* DEBUG("B-frame Bidir!\n"); */ |
1668 |
break; |
break; |
1669 |
|
|
1670 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1671 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1672 |
dec->p_bmv); |
dec->p_bmv); |
1673 |
dec->p_bmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_bmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1674 |
|
|
1675 |
|
mb->mode = MODE_INTER; |
1676 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1677 |
//DEBUG("B-frame Backward!\n"); |
/* DEBUG("B-frame Backward!\n"); */ |
1678 |
break; |
break; |
1679 |
|
|
1680 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1681 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1682 |
dec->p_fmv); |
dec->p_fmv); |
1683 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1684 |
|
|
1685 |
|
mb->mode = MODE_INTER; |
1686 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1687 |
//DEBUG("B-frame Forward!\n"); |
/* DEBUG("B-frame Forward!\n"); */ |
1688 |
break; |
break; |
1689 |
|
|
1690 |
default: |
default: |
1691 |
//DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DPRINTF(DPRINTF_ERROR,"Not support B-frame mb_type = %i", mb->mb_type); |
|
; |
|
1692 |
} |
} |
1693 |
|
} /* End of for */ |
|
} // end of FOR |
|
1694 |
} |
} |
1695 |
|
|
1696 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1697 |
if (!first){ |
if (!first){ |
1698 |
first=1; |
first=1; |
1702 |
#endif |
#endif |
1703 |
} |
} |
1704 |
|
|
1705 |
// swap two MACROBLOCK array |
/* swap two MACROBLOCK array */ |
1706 |
void |
void |
1707 |
mb_swap(MACROBLOCK ** mb1, |
mb_swap(MACROBLOCK ** mb1, |
1708 |
MACROBLOCK ** mb2) |
MACROBLOCK ** mb2) |
1713 |
*mb2 = temp; |
*mb2 = temp; |
1714 |
} |
} |
1715 |
|
|
1716 |
|
|
1717 |
|
/* perform post processing if necessary, and output the image */ |
1718 |
|
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1719 |
|
const XVID_DEC_FRAME * frame, int pp_disable) |
1720 |
|
{ |
1721 |
|
|
1722 |
|
if ((frame->general & (XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV)) && !pp_disable) /* post process */ |
1723 |
|
{ |
1724 |
|
/* note: image is stored to tmp */ |
1725 |
|
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
1726 |
|
image_deblock_rrv(&dec->tmp, dec->edged_width, |
1727 |
|
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
1728 |
|
8, frame->general); |
1729 |
|
img = &dec->tmp; |
1730 |
|
} |
1731 |
|
|
1732 |
|
image_output(img, dec->width, dec->height, |
1733 |
|
dec->edged_width, frame->image, frame->stride, |
1734 |
|
frame->colorspace, dec->interlacing); |
1735 |
|
} |
1736 |
|
|
1737 |
|
|
1738 |
int |
int |
1739 |
decoder_decode(DECODER * dec, |
decoder_decode(DECODER * dec, |
1740 |
XVID_DEC_FRAME * frame) |
XVID_DEC_FRAME * frame, XVID_DEC_STATS * stats) |
1741 |
{ |
{ |
1742 |
|
|
1743 |
Bitstream bs; |
Bitstream bs; |
1744 |
uint32_t rounding; |
uint32_t rounding; |
1745 |
|
uint32_t reduced_resolution; |
1746 |
uint32_t quant; |
uint32_t quant; |
1747 |
uint32_t fcode_forward; |
uint32_t fcode_forward; |
1748 |
uint32_t fcode_backward; |
uint32_t fcode_backward; |
1749 |
uint32_t intra_dc_threshold; |
uint32_t intra_dc_threshold; |
1750 |
uint32_t vop_type; |
WARPPOINTS gmc_warp; |
1751 |
|
int vop_type; |
1752 |
|
int success = 0; |
1753 |
|
int output = 0; |
1754 |
|
int seen_something = 0; |
1755 |
|
|
1756 |
start_global_timer(); |
start_global_timer(); |
1757 |
|
|
1758 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
dec->low_delay_default = (frame->general & XVID_DEC_LOWDELAY); |
1759 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1760 |
|
|
1761 |
// add by chenm001 <chenm001@163.com> |
if ((frame->general & XVID_DEC_DISCONTINUITY)) |
1762 |
// for support B-frame to reference last 2 frame |
dec->frames = 0; |
|
dec->frames++; |
|
|
vop_type = |
|
|
BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, |
|
|
&fcode_backward, &intra_dc_threshold); |
|
1763 |
|
|
1764 |
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; // init pred vector to 0 |
if (frame->length < 0) /* decoder flush */ |
1765 |
|
{ |
1766 |
|
/* if not decoding "low_delay/packed", and this isn't low_delay and |
1767 |
|
we have a reference frame, then outout the reference frame */ |
1768 |
|
if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) |
1769 |
|
{ |
1770 |
|
decoder_output(dec, &dec->refn[0], dec->mbs, frame, dec->last_reduced_resolution); |
1771 |
|
output = 1; |
1772 |
|
} |
1773 |
|
|
1774 |
switch (vop_type) { |
frame->length = 0; |
1775 |
case P_VOP: |
if (stats) |
1776 |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
{ |
1777 |
intra_dc_threshold); |
stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; |
1778 |
#ifdef BFRAMES_DEC |
stats->data.vop.time_base = (int)dec->time_base; |
1779 |
DEBUG1("P_VOP Time=", dec->time); |
stats->data.vop.time_increment = 0; /* XXX: todo */ |
1780 |
#endif |
} |
|
break; |
|
1781 |
|
|
1782 |
case I_VOP: |
emms(); |
|
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
|
|
#ifdef BFRAMES_DEC |
|
|
DEBUG1("I_VOP Time=", dec->time); |
|
|
#endif |
|
|
break; |
|
1783 |
|
|
1784 |
case B_VOP: |
stop_global_timer(); |
1785 |
#ifdef BFRAMES_DEC |
return XVID_ERR_OK; |
|
if (dec->time_pp > dec->time_bp) { |
|
|
DEBUG1("B_VOP Time=", dec->time); |
|
|
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
|
|
} else { |
|
|
DEBUG("broken B-frame!"); |
|
1786 |
} |
} |
|
#else |
|
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
|
|
#endif |
|
|
break; |
|
1787 |
|
|
1788 |
case N_VOP: // vop not coded |
BitstreamInit(&bs, frame->bitstream, frame->length); |
|
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
|
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
|
|
break; |
|
1789 |
|
|
1790 |
default: |
/* XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's */ |
1791 |
return XVID_ERR_FAIL; |
if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
1792 |
|
{ |
1793 |
|
if (stats) |
1794 |
|
stats->notify = XVID_DEC_VOP; |
1795 |
|
frame->length = 1; |
1796 |
|
image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, |
1797 |
|
frame->image, frame->stride, frame->colorspace, dec->interlacing); |
1798 |
|
emms(); |
1799 |
|
return XVID_ERR_OK; |
1800 |
} |
} |
1801 |
|
|
1802 |
#ifdef BFRAMES_DEC_DEBUG |
repeat: |
1803 |
if (frame->length != BitstreamPos(&bs) / 8){ |
|
1804 |
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
vop_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
1805 |
|
&quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); |
1806 |
|
|
1807 |
|
DPRINTF(DPRINTF_HEADER, "vop_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i", |
1808 |
|
vop_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); |
1809 |
|
|
1810 |
|
if (vop_type == -1) |
1811 |
|
{ |
1812 |
|
if (success) goto done; |
1813 |
|
emms(); |
1814 |
|
return XVID_ERR_FAIL; |
1815 |
} |
} |
1816 |
#endif |
|
1817 |
|
if (vop_type == -2 || vop_type == -3) |
1818 |
|
{ |
1819 |
|
if (vop_type == -3) |
1820 |
|
decoder_resize(dec); |
1821 |
|
|
1822 |
|
if (stats) |
1823 |
|
{ |
1824 |
|
stats->notify = XVID_DEC_VOL; |
1825 |
|
stats->data.vol.general = 0; |
1826 |
|
if (dec->interlacing) |
1827 |
|
stats->data.vol.general |= XVID_INTERLACING; |
1828 |
|
stats->data.vol.width = dec->width; |
1829 |
|
stats->data.vol.height = dec->height; |
1830 |
|
stats->data.vol.aspect_ratio = dec->aspect_ratio; |
1831 |
|
stats->data.vol.par_width = dec->par_width; |
1832 |
|
stats->data.vol.par_height = dec->par_height; |
1833 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |
1834 |
|
emms(); |
1835 |
|
return XVID_ERR_OK; |
1836 |
|
} |
1837 |
|
goto repeat; |
1838 |
|
} |
1839 |
|
|
1840 |
|
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
1841 |
|
|
|
#ifdef BFRAMES_DEC |
|
|
// test if no B_VOP |
|
|
if (dec->low_delay) { |
|
|
#endif |
|
|
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
|
|
frame->image, frame->stride, frame->colorspace); |
|
1842 |
|
|
1843 |
#ifdef BFRAMES_DEC |
/* packed_mode: special-N_VOP treament */ |
1844 |
} else { |
if (dec->packed_mode && vop_type == N_VOP) |
1845 |
if (dec->frames >= 0) { |
{ |
1846 |
start_timer(); |
if (dec->low_delay_default && dec->frames > 0) |
1847 |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
{ |
1848 |
image_output(&dec->refn[0], dec->width, dec->height, |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
1849 |
dec->edged_width, frame->image, frame->stride, |
output = 1; |
|
frame->colorspace); |
|
|
} else if (vop_type == B_VOP) { |
|
|
image_output(&dec->cur, dec->width, dec->height, |
|
|
dec->edged_width, frame->image, frame->stride, |
|
|
frame->colorspace); |
|
1850 |
} |
} |
1851 |
stop_conv_timer(); |
/* ignore otherwise */ |
1852 |
|
} |
1853 |
|
else if (vop_type != B_VOP) |
1854 |
|
{ |
1855 |
|
switch(vop_type) |
1856 |
|
{ |
1857 |
|
case I_VOP : |
1858 |
|
decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); |
1859 |
|
break; |
1860 |
|
case P_VOP : |
1861 |
|
decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1862 |
|
fcode_forward, intra_dc_threshold, NULL); |
1863 |
|
break; |
1864 |
|
case S_VOP : |
1865 |
|
decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1866 |
|
fcode_forward, intra_dc_threshold, &gmc_warp); |
1867 |
|
break; |
1868 |
|
case N_VOP : |
1869 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1870 |
|
break; |
1871 |
|
} |
1872 |
|
|
1873 |
|
if (reduced_resolution) |
1874 |
|
{ |
1875 |
|
image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, |
1876 |
|
(dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, |
1877 |
|
16, XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV); |
1878 |
|
} |
1879 |
|
|
1880 |
|
/* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
1881 |
|
if (!(dec->low_delay_default && dec->packed_mode)) |
1882 |
|
{ |
1883 |
|
if (dec->low_delay) |
1884 |
|
{ |
1885 |
|
decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); |
1886 |
|
output = 1; |
1887 |
|
} |
1888 |
|
else if (dec->frames > 0) /* is the reference frame valid? */ |
1889 |
|
{ |
1890 |
|
/* output the reference frame */ |
1891 |
|
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
1892 |
|
output = 1; |
1893 |
} |
} |
1894 |
} |
} |
|
#endif |
|
1895 |
|
|
|
if (vop_type == I_VOP || vop_type == P_VOP) { |
|
1896 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1897 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
|
// swap MACROBLOCK |
|
|
if (!dec->low_delay && vop_type == P_VOP) |
|
1898 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1899 |
|
dec->last_reduced_resolution = reduced_resolution; |
1900 |
|
|
1901 |
|
dec->frames++; |
1902 |
|
seen_something = 1; |
1903 |
|
|
1904 |
|
}else{ /* B_VOP */ |
1905 |
|
|
1906 |
|
if (dec->low_delay) |
1907 |
|
{ |
1908 |
|
DPRINTF(DPRINTF_ERROR, "warning: bvop found in low_delay==1 stream"); |
1909 |
|
dec->low_delay = 1; |
1910 |
|
} |
1911 |
|
|
1912 |
|
if (dec->frames < 2) |
1913 |
|
{ |
1914 |
|
/* attemping to decode a bvop without atleast 2 reference frames */ |
1915 |
|
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1916 |
|
"broken b-frame, mising ref frames"); |
1917 |
|
}else if (dec->time_pp <= dec->time_bp) { |
1918 |
|
/* this occurs when dx50_bvop_compatibility==0 sequences are |
1919 |
|
decoded in vfw. */ |
1920 |
|
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1921 |
|
"broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); |
1922 |
|
}else{ |
1923 |
|
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1924 |
|
} |
1925 |
|
|
1926 |
|
decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); |
1927 |
|
output = 1; |
1928 |
|
dec->frames++; |
1929 |
|
} |
1930 |
|
|
1931 |
|
BitstreamByteAlign(&bs); |
1932 |
|
|
1933 |
|
/* low_delay_default mode: repeat in packed_mode */ |
1934 |
|
if (dec->low_delay_default && dec->packed_mode && output == 0 && success == 0) |
1935 |
|
{ |
1936 |
|
success = 1; |
1937 |
|
goto repeat; |
1938 |
|
} |
1939 |
|
|
1940 |
|
done : |
1941 |
|
|
1942 |
|
/* low_delay_default mode: if we've gotten here without outputting anything, |
1943 |
|
then output the recently decoded frame, or print an error message */ |
1944 |
|
if (dec->low_delay_default && output == 0) |
1945 |
|
{ |
1946 |
|
if (dec->packed_mode && seen_something) |
1947 |
|
{ |
1948 |
|
/* output the recently decoded frame */ |
1949 |
|
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
1950 |
|
output = 1; |
1951 |
|
} |
1952 |
|
else |
1953 |
|
{ |
1954 |
|
image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); |
1955 |
|
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1956 |
|
"warning: nothing to output"); |
1957 |
|
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, |
1958 |
|
"bframe decoder lag"); |
1959 |
|
|
1960 |
|
decoder_output(dec, &dec->cur, NULL, frame, 1 /*disable pp*/); |
1961 |
|
} |
1962 |
|
} |
1963 |
|
|
1964 |
|
frame->length = BitstreamPos(&bs) / 8; |
1965 |
|
|
1966 |
|
if (stats) |
1967 |
|
{ |
1968 |
|
stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; |
1969 |
|
stats->data.vop.time_base = (int)dec->time_base; |
1970 |
|
stats->data.vop.time_increment = 0; /* XXX: todo */ |
1971 |
} |
} |
1972 |
|
|
1973 |
emms(); |
emms(); |