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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 |
* Copyright(C) 2002 MinChen <chenm001@163.com> |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* 2002-2003 Peter Ross <pross@xvid.org> |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* This 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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*************************************************************************/ |
* $Id: decoder.c,v 1.49.2.14 2003-10-03 15:49:21 syskin Exp $ |
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/************************************************************************** |
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* |
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* History: |
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* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
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* MinChen <chenm001@163.com> |
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* 10.07.2002 added BFRAMES_DEC_DEBUG support |
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* Fix a little bug for low_delay flage |
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* MinChen <chenm001@163.com> |
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* 28.06.2002 added basic resync support to iframe/pframe_decode() |
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* 22.06.2002 added primative N_VOP support |
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* #define BFRAMES_DEC now enables Minchen's bframe decoder |
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* 08.05.2002 add low_delay support for B_VOP decode |
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* MinChen <chenm001@163.com> |
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* 05.05.2002 fix some B-frame decode problem |
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* 02.05.2002 add B-frame decode support(have some problem); |
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* MinChen <chenm001@163.com> |
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* 22.04.2002 add some B-frame decode support; chenm001 <chenm001@163.com> |
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* 29.03.2002 interlacing fix - compensated block wasn't being used when |
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* reconstructing blocks, thus artifacts |
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* interlacing speedup - used transfers to re-interlace |
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* interlaced decoding should be as fast as progressive now |
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* 26.03.2002 interlacing support - moved transfers outside decode loop |
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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: decoder.c,v 1.47 2003-02-15 15:22:17 edgomez Exp $ |
****************************************************************************/ |
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*************************************************************************/ |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <stdlib.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" |
#include "motion/motion.h" |
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#include "motion/gmc.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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decoder_resize(DECODER * dec) |
decoder_resize(DECODER * dec) |
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{ |
{ |
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/* free existing */ |
/* free existing */ |
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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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xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
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/* realloc */ |
/* 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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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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// add by chenm001 <chenm001@163.com> |
/* Support B-frame to reference last 2 frame */ |
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// for support B-frame to reference last 2 frame |
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if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
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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} |
} |
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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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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; |
return 0; |
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} |
} |
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int |
int |
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decoder_create(XVID_DEC_PARAM * param) |
decoder_create(xvid_dec_create_t * create) |
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{ |
{ |
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DECODER *dec; |
DECODER *dec; |
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if (XVID_VERSION_MAJOR(create->version) != 1) /* v1.x.x */ |
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return XVID_ERR_VERSION; |
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dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
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if (dec == NULL) { |
if (dec == NULL) { |
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return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
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} |
} |
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memset(dec, 0, sizeof(DECODER)); |
memset(dec, 0, sizeof(DECODER)); |
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param->handle = dec; |
create->handle = dec; |
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dec->width = param->width; |
dec->width = create->width; |
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dec->height = param->height; |
dec->height = create->height; |
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image_null(&dec->cur); |
image_null(&dec->cur); |
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image_null(&dec->refn[0]); |
image_null(&dec->refn[0]); |
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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 |
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dec->frames = 0; |
dec->frames = 0; |
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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; |
dec->low_delay = 0; |
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if (dec->fixed_dimensions) |
if (dec->fixed_dimensions) |
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return decoder_resize(dec); |
return decoder_resize(dec); |
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else |
else |
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return XVID_ERR_OK; |
return 0; |
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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_destroy(&dec->gmc, dec->edged_width, dec->edged_height); /* image based GMC */ |
/* 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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xvid_free(dec); |
xvid_free(dec); |
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write_timer(); |
write_timer(); |
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return XVID_ERR_OK; |
return 0; |
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} |
} |
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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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pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
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} |
} |
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memset(block, 0, 6 * 64 * sizeof(int16_t)); // clear |
memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ |
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for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
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uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
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dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; |
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if (dc_size > 8) { |
if (dc_size > 8) { |
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BitstreamSkip(bs, 1); // marker |
BitstreamSkip(bs, 1); /* marker */ |
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} |
} |
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block[i * 64 + 0] = dc_dif; |
block[i * 64 + 0] = dc_dif; |
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start_coeff = 1; |
start_coeff = 1; |
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DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); |
DPRINTF(XVID_DEBUG_COEFF,"block[0] %i\n", dc_dif); |
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} else { |
} else { |
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start_coeff = 0; |
start_coeff = 0; |
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} |
} |
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start_timer(); |
start_timer(); |
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if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
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{ |
{ |
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int direction = dec->alternate_vertical_scan ? |
int direction = dec->alternate_vertical_scan ? |
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2 : pMB->acpred_directions[i]; |
2 : pMB->acpred_directions[i]; |
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// decode an inter macroblock |
/* decode an inter macroblock */ |
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void |
void |
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decoder_mbinter(DECODER * dec, |
decoder_mbinter(DECODER * dec, |
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const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
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interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, |
interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, |
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uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
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// set_block(pY_Cur, stride, 32, 32, 127); |
/* set_block(pY_Cur, stride, 32, 32, 127); */ |
487 |
} |
} |
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else |
else |
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{ |
{ |
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for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
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int direction = dec->alternate_vertical_scan ? 2 : 0; |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
525 |
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if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
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{ |
{ |
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memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
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start_timer(); |
start_timer(); |
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get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64], direction); |
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stop_transfer_timer(); |
stop_transfer_timer(); |
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} |
} |
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static __inline int gmc_sanitize(int value, int quarterpel, int fcode) |
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{ |
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int length = 1 << (fcode+4); |
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// if (quarterpel) value *= 2; |
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if (value < -length) |
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return -length; |
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else if (value >= length) |
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return length-1; |
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else return value; |
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} |
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static void |
static void |
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decoder_mbgmc(DECODER * dec, |
decoder_mbgmc(DECODER * dec, |
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617 |
/* this is where the calculations are done */ |
/* this is where the calculations are done */ |
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{ |
{ NEW_GMC_DATA * gmc_data = &dec->new_gmc_data; |
620 |
pMB->amv = generate_GMCimageMB(&dec->gmc_data, &dec->refn[0], x_pos, y_pos, |
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stride, stride2, dec->quarterpel, rounding, &dec->cur); |
gmc_data->predict_16x16(gmc_data, |
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dec->cur.y + y_pos*16*stride + x_pos*16, dec->refn[0].y, |
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stride, stride, x_pos, y_pos, rounding); |
624 |
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625 |
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gmc_data->predict_8x8(gmc_data, |
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dec->cur.u + y_pos*8*stride2 + x_pos*8, dec->refn[0].u, |
627 |
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dec->cur.v + y_pos*8*stride2 + x_pos*8, dec->refn[0].v, |
628 |
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stride2, stride2, x_pos, y_pos, rounding); |
629 |
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630 |
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gmc_data->get_average_mv(gmc_data, &pMB->amv, x_pos, y_pos, dec->quarterpel); |
631 |
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pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); |
pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); |
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pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); |
pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); |
634 |
} |
} |
635 |
pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
636 |
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637 |
/* transfer16x16_copy(pY_Cur, dec->gmc.y + (y_pos << 4)*stride + (x_pos << 4), stride); |
/* |
638 |
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transfer16x16_copy(pY_Cur, dec->gmc.y + (y_pos << 4)*stride + (x_pos << 4), stride); |
639 |
transfer8x8_copy(pU_Cur, dec->gmc.u + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
transfer8x8_copy(pU_Cur, dec->gmc.u + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
640 |
transfer8x8_copy(pV_Cur, dec->gmc.v + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
transfer8x8_copy(pV_Cur, dec->gmc.v + (y_pos << 3)*stride2 + (x_pos << 3), stride2); |
641 |
*/ |
*/ |
648 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
649 |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
650 |
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651 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
652 |
{ |
{ |
653 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
654 |
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655 |
start_timer(); |
start_timer(); |
656 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64], direction); |
671 |
} |
} |
672 |
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/* interlace + GMC is this possible ??? */ |
/* interlace + GMC is this possible ??? */ |
674 |
/* if (dec->interlacing && pMB->field_dct) { |
/* |
675 |
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if (dec->interlacing && pMB->field_dct) { |
676 |
next_block = stride; |
next_block = stride; |
677 |
stride *= 2; |
stride *= 2; |
678 |
} |
} |
735 |
} |
} |
736 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
737 |
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738 |
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
739 |
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740 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
741 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
762 |
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763 |
if (dec->interlacing) { |
if (dec->interlacing) { |
764 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
765 |
DPRINTF(DPRINTF_MB,"deci: field_dct: %i", mb->field_dct); |
DPRINTF(XVID_DEBUG_MB,"deci: field_dct: %i\n", mb->field_dct); |
766 |
} |
} |
767 |
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768 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
800 |
mv.x = get_mv(bs, fcode); |
mv.x = get_mv(bs, fcode); |
801 |
mv.y = get_mv(bs, fcode); |
mv.y = get_mv(bs, fcode); |
802 |
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803 |
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); |
DPRINTF(XVID_DEBUG_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)\n", mv.x, mv.y, pmv.x, pmv.y, mv.x+pmv.x, mv.y+pmv.y); |
804 |
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805 |
mv.x += pmv.x; |
mv.x += pmv.x; |
806 |
mv.y += pmv.y; |
mv.y += pmv.y; |
857 |
if (gmc_warp) |
if (gmc_warp) |
858 |
{ |
{ |
859 |
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860 |
// accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
/* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
861 |
if ( (dec->sprite_warping_accuracy != 3) || (dec->sprite_warping_points != 2) ) |
/* { |
862 |
{ |
fprintf(stderr,"GMC parameters acc=%d(-> 1/%d), %d pts!!!\n", |
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fprintf(stderr,"Wrong GMC parameters acc=%d(-> 1/%d), %d!!!\n", |
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863 |
dec->sprite_warping_accuracy,(2<<dec->sprite_warping_accuracy), |
dec->sprite_warping_accuracy,(2<<dec->sprite_warping_accuracy), |
864 |
dec->sprite_warping_points); |
dec->sprite_warping_points); |
865 |
} |
}*/ |
866 |
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867 |
generate_GMCparameters( dec->sprite_warping_points, |
generate_GMCparameters( dec->sprite_warping_points, |
868 |
(2 << dec->sprite_warping_accuracy), gmc_warp, |
dec->sprite_warping_accuracy, gmc_warp, |
869 |
dec->width, dec->height, &dec->gmc_data); |
dec->width, dec->height, &dec->new_gmc_data); |
870 |
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871 |
/* image warping is done block-based in decoder_mbgmc(), now */ |
/* image warping is done block-based in decoder_mbgmc(), now */ |
|
/* |
|
|
generate_GMCimage(&dec->gmc_data, &dec->refn[0], |
|
|
mb_width, mb_height, |
|
|
dec->edged_width, dec->edged_width/2, |
|
|
fcode, dec->quarterpel, 0, |
|
|
rounding, dec->mbs, &dec->gmc); |
|
|
*/ |
|
872 |
} |
} |
873 |
|
|
874 |
bound = 0; |
bound = 0; |
878 |
for (x = 0; x < mb_width; x++) { |
for (x = 0; x < mb_width; x++) { |
879 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
880 |
|
|
881 |
// skip stuffing |
/* skip stuffing */ |
882 |
while (BitstreamShowBits(bs, 10) == 1) |
while (BitstreamShowBits(bs, 10) == 1) |
883 |
BitstreamSkip(bs, 10); |
BitstreamSkip(bs, 10); |
884 |
|
|
891 |
} |
} |
892 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
893 |
|
|
894 |
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
895 |
|
|
896 |
//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 */ |
897 |
if (!(BitstreamGetBit(bs))) // block _is_ coded |
if (!(BitstreamGetBit(bs))) /* block _is_ coded */ |
898 |
{ |
{ |
899 |
uint32_t mcbpc; |
uint32_t mcbpc; |
900 |
uint32_t cbpc; |
uint32_t cbpc; |
902 |
uint32_t cbpy; |
uint32_t cbpy; |
903 |
uint32_t cbp; |
uint32_t cbp; |
904 |
uint32_t intra; |
uint32_t intra; |
905 |
int mcsel = 0; // mcsel: '0'=local motion, '1'=GMC |
int mcsel = 0; /* mcsel: '0'=local motion, '1'=GMC */ |
906 |
|
|
907 |
cp_mb++; |
cp_mb++; |
908 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
909 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
910 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
911 |
|
|
912 |
DPRINTF(DPRINTF_MB, "mode %i", mb->mode); |
DPRINTF(XVID_DEBUG_MB, "mode %i\n", mb->mode); |
913 |
DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); |
DPRINTF(XVID_DEBUG_MB, "cbpc %i\n", cbpc); |
914 |
acpred_flag = 0; |
acpred_flag = 0; |
915 |
|
|
916 |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
917 |
|
|
|
if (intra) { |
|
|
acpred_flag = BitstreamGetBit(bs); |
|
|
} |
|
|
|
|
918 |
if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
|
{ |
|
919 |
mcsel = BitstreamGetBit(bs); |
mcsel = BitstreamGetBit(bs); |
920 |
} |
|
921 |
|
if (intra) |
922 |
|
acpred_flag = BitstreamGetBit(bs); |
923 |
|
|
924 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
925 |
DPRINTF(DPRINTF_MB, "cbpy %i mcsel %i ", cbpy,mcsel); |
DPRINTF(XVID_DEBUG_MB, "cbpy %i mcsel %i \n", cbpy,mcsel); |
926 |
|
|
927 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
928 |
|
|
929 |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
930 |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
931 |
DPRINTF(DPRINTF_MB, "dquant %i", dquant); |
DPRINTF(XVID_DEBUG_MB, "dquant %i\n", dquant); |
932 |
quant += dquant; |
quant += dquant; |
933 |
if (quant > 31) { |
if (quant > 31) { |
934 |
quant = 31; |
quant = 31; |
935 |
} else if (quant < 1) { |
} else if (quant < 1) { |
936 |
quant = 1; |
quant = 1; |
937 |
} |
} |
938 |
DPRINTF(DPRINTF_MB, "quant %i", quant); |
DPRINTF(XVID_DEBUG_MB, "quant %i\n", quant); |
939 |
} |
} |
940 |
mb->quant = quant; |
mb->quant = quant; |
941 |
|
|
942 |
if (dec->interlacing) { |
if (dec->interlacing) { |
943 |
if (cbp || intra) { |
if ((cbp || intra) && !mcsel) { |
944 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
945 |
DPRINTF(DPRINTF_MB,"decp: field_dct: %i", mb->field_dct); |
DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
946 |
} |
} |
947 |
|
|
948 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
949 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
950 |
DPRINTF(DPRINTF_MB, "decp: field_pred: %i", mb->field_pred); |
DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
951 |
|
|
952 |
if (mb->field_pred) { |
if (mb->field_pred) { |
953 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
954 |
DPRINTF(DPRINTF_MB,"decp: field_for_top: %i", mb->field_for_top); |
DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); |
955 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
956 |
DPRINTF(DPRINTF_MB,"decp: field_for_bot: %i", mb->field_for_bot); |
DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); |
957 |
} |
} |
958 |
} |
} |
959 |
} |
} |
981 |
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); |
982 |
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); |
983 |
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); |
984 |
} else // MODE_INTRA, MODE_INTRA_Q |
} else /* MODE_INTRA, MODE_INTRA_Q */ |
985 |
{ |
{ |
986 |
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 = |
987 |
0; |
0; |
1019 |
|
|
1020 |
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; |
1021 |
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; |
1022 |
// copy macroblock directly from ref to cur |
/* copy macroblock directly from ref to cur */ |
1023 |
|
|
1024 |
start_timer(); |
start_timer(); |
1025 |
|
|
1067 |
} |
} |
1068 |
|
|
1069 |
|
|
1070 |
// add by MinChen <chenm001@163.com> |
/* decode B-frame motion vector */ |
|
// decode B-frame motion vector |
|
1071 |
void |
void |
1072 |
get_b_motion_vector(DECODER * dec, |
get_b_motion_vector(DECODER * dec, |
1073 |
Bitstream * bs, |
Bitstream * bs, |
1111 |
} |
} |
1112 |
|
|
1113 |
|
|
1114 |
// add by MinChen <chenm001@163.com> |
/* decode an B-frame forward & backward inter macroblock */ |
|
// decode an B-frame forward & backward inter macroblock |
|
1115 |
void |
void |
1116 |
decoder_bf_mbinter(DECODER * dec, |
decoder_bf_mbinter(DECODER * dec, |
1117 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
1195 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1196 |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1197 |
|
|
1198 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
1199 |
{ |
{ |
1200 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
1201 |
|
|
1202 |
start_timer(); |
start_timer(); |
1203 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64], direction); |
1238 |
stop_transfer_timer(); |
stop_transfer_timer(); |
1239 |
} |
} |
1240 |
|
|
1241 |
// add by MinChen <chenm001@163.com> |
/* decode an B-frame direct & inter macroblock */ |
|
// decode an B-frame direct & inter macroblock |
|
1242 |
void |
void |
1243 |
decoder_bf_interpolate_mbinter(DECODER * dec, |
decoder_bf_interpolate_mbinter(DECODER * dec, |
1244 |
IMAGE forward, |
IMAGE forward, |
1435 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1436 |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1437 |
|
|
1438 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) /* coded */ |
1439 |
{ |
{ |
1440 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
1441 |
|
|
1442 |
start_timer(); |
start_timer(); |
1443 |
get_inter_block(bs, &block[i * 64], direction); |
get_inter_block(bs, &block[i * 64], direction); |
1479 |
} |
} |
1480 |
|
|
1481 |
|
|
1482 |
// add by MinChen <chenm001@163.com> |
/* for decode B-frame dbquant */ |
|
// for decode B-frame dbquant |
|
1483 |
int32_t __inline |
int32_t __inline |
1484 |
get_dbquant(Bitstream * bs) |
get_dbquant(Bitstream * bs) |
1485 |
{ |
{ |
1486 |
if (!BitstreamGetBit(bs)) // '0' |
if (!BitstreamGetBit(bs)) /* '0' */ |
1487 |
return (0); |
return (0); |
1488 |
else if (!BitstreamGetBit(bs)) // '10' |
else if (!BitstreamGetBit(bs)) /* '10' */ |
1489 |
return (-2); |
return (-2); |
1490 |
else |
else /* '11' */ |
1491 |
return (2); // '11' |
return (2); |
1492 |
} |
} |
1493 |
|
|
1494 |
// add by MinChen <chenm001@163.com> |
/* |
1495 |
// for decode B-frame mb_type |
* For decode B-frame mb_type |
1496 |
// bit ret_value |
* bit ret_value |
1497 |
// 1 0 |
* 1 0 |
1498 |
// 01 1 |
* 01 1 |
1499 |
// 001 2 |
* 001 2 |
1500 |
// 0001 3 |
* 0001 3 |
1501 |
|
*/ |
1502 |
int32_t __inline |
int32_t __inline |
1503 |
get_mbtype(Bitstream * bs) |
get_mbtype(Bitstream * bs) |
1504 |
{ |
{ |
1547 |
#endif |
#endif |
1548 |
|
|
1549 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1550 |
// Initialize Pred Motion Vector |
/* Initialize Pred Motion Vector */ |
1551 |
dec->p_fmv = dec->p_bmv = zeromv; |
dec->p_fmv = dec->p_bmv = zeromv; |
1552 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1553 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1557 |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1558 |
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1559 |
|
|
1560 |
// skip if the co-located P_VOP macroblock is not coded |
/* |
1561 |
// if not codec in co-located S_VOP macroblock is _not_ automatically skipped |
* skip if the co-located P_VOP macroblock is not coded |
1562 |
|
* if not codec in co-located S_VOP macroblock is _not_ |
1563 |
|
* automatically skipped |
1564 |
|
*/ |
1565 |
|
|
1566 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1567 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
/* DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); */ |
1568 |
mb->cbp = 0; |
mb->cbp = 0; |
1569 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1570 |
mb->mb_type = MODE_NOT_CODED; |
mb->mb_type = MODE_NOT_CODED; |
1572 |
#endif |
#endif |
1573 |
mb->mb_type = MODE_FORWARD; |
mb->mb_type = MODE_FORWARD; |
1574 |
mb->quant = last_mb->quant; |
mb->quant = last_mb->quant; |
1575 |
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
/* |
1576 |
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1577 |
|
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1578 |
|
*/ |
1579 |
|
|
1580 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1581 |
continue; |
continue; |
1582 |
} |
} |
1583 |
|
|
1584 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { /* modb=='0' */ |
1585 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1586 |
|
|
1587 |
mb->mb_type = get_mbtype(bs); |
mb->mb_type = get_mbtype(bs); |
1588 |
|
|
1589 |
if (!modb2) { // modb=='00' |
if (!modb2) { /* modb=='00' */ |
1590 |
mb->cbp = BitstreamGetBits(bs, 6); |
mb->cbp = BitstreamGetBits(bs, 6); |
1591 |
} else { |
} else { |
1592 |
mb->cbp = 0; |
mb->cbp = 0; |
1600 |
quant = 1; |
quant = 1; |
1601 |
} |
} |
1602 |
} |
} |
1603 |
|
|
1604 |
|
if (dec->interlacing) { |
1605 |
|
if (mb->cbp) { |
1606 |
|
mb->field_dct = BitstreamGetBit(bs); |
1607 |
|
DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
1608 |
|
} |
1609 |
|
|
1610 |
|
if (mb->mb_type) { |
1611 |
|
mb->field_pred = BitstreamGetBit(bs); |
1612 |
|
DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
1613 |
|
|
1614 |
|
if (mb->field_pred) { |
1615 |
|
mb->field_for_top = BitstreamGetBit(bs); |
1616 |
|
DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); |
1617 |
|
mb->field_for_bot = BitstreamGetBit(bs); |
1618 |
|
DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); |
1619 |
|
} |
1620 |
|
} |
1621 |
|
} |
1622 |
|
|
1623 |
} else { |
} else { |
1624 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1625 |
mb->cbp = 0; |
mb->cbp = 0; |
1627 |
|
|
1628 |
mb->quant = quant; |
mb->quant = quant; |
1629 |
mb->mode = MODE_INTER4V; |
mb->mode = MODE_INTER4V; |
1630 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
/* DEBUG1("Switch bm_type=",mb->mb_type); */ |
1631 |
|
|
1632 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1633 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1656 |
/ TRD |
/ TRD |
1657 |
: mb->mvs[i].y - last_mb->mvs[i].y); |
: mb->mvs[i].y - last_mb->mvs[i].y); |
1658 |
} |
} |
1659 |
//DEBUG("B-frame Direct!\n"); |
/* DEBUG("B-frame Direct!\n"); */ |
1660 |
} |
} |
1661 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1662 |
mb, x, y, bs); |
mb, x, y, bs); |
1674 |
|
|
1675 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1676 |
mb, x, y, bs); |
mb, x, y, bs); |
1677 |
//DEBUG("B-frame Bidir!\n"); |
/* DEBUG("B-frame Bidir!\n"); */ |
1678 |
break; |
break; |
1679 |
|
|
1680 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1684 |
|
|
1685 |
mb->mode = MODE_INTER; |
mb->mode = MODE_INTER; |
1686 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1687 |
//DEBUG("B-frame Backward!\n"); |
/* DEBUG("B-frame Backward!\n"); */ |
1688 |
break; |
break; |
1689 |
|
|
1690 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1694 |
|
|
1695 |
mb->mode = MODE_INTER; |
mb->mode = MODE_INTER; |
1696 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1697 |
//DEBUG("B-frame Forward!\n"); |
/* DEBUG("B-frame Forward!\n"); */ |
1698 |
break; |
break; |
1699 |
|
|
1700 |
default: |
default: |
1701 |
DPRINTF(DPRINTF_ERROR,"Not support B-frame mb_type = %i", mb->mb_type); |
DPRINTF(XVID_DEBUG_ERROR,"Not support B-frame mb_type = %i\n", mb->mb_type); |
1702 |
} |
} |
1703 |
|
} /* End of for */ |
|
} // end of FOR |
|
1704 |
} |
} |
1705 |
|
|
1706 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1707 |
if (!first){ |
if (!first){ |
1708 |
first=1; |
first=1; |
1712 |
#endif |
#endif |
1713 |
} |
} |
1714 |
|
|
|
// swap two MACROBLOCK array |
|
|
void |
|
|
mb_swap(MACROBLOCK ** mb1, |
|
|
MACROBLOCK ** mb2) |
|
|
{ |
|
|
MACROBLOCK *temp = *mb1; |
|
|
|
|
|
*mb1 = *mb2; |
|
|
*mb2 = temp; |
|
|
} |
|
1715 |
|
|
1716 |
|
|
1717 |
/* perform post processing if necessary, and output the image */ |
/* perform post processing if necessary, and output the image */ |
1718 |
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1719 |
const XVID_DEC_FRAME * frame, int pp_disable) |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, int coding_type) |
1720 |
{ |
{ |
1721 |
|
|
|
if ((frame->general & (XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV)) && !pp_disable) /* post process */ |
|
|
{ |
|
|
/* note: image is stored to tmp */ |
|
|
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
|
|
image_deblock_rrv(&dec->tmp, dec->edged_width, |
|
|
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
|
|
8, frame->general); |
|
|
img = &dec->tmp; |
|
|
} |
|
1722 |
|
|
1723 |
image_output(img, dec->width, dec->height, |
image_output(img, dec->width, dec->height, |
1724 |
dec->edged_width, frame->image, frame->stride, |
dec->edged_width, (uint8_t**)frame->output.plane, frame->output.stride, |
1725 |
frame->colorspace, dec->interlacing); |
frame->output.csp, dec->interlacing); |
1726 |
|
|
1727 |
|
if (stats) |
1728 |
|
{ |
1729 |
|
stats->type = coding2type(coding_type); |
1730 |
|
stats->data.vop.time_base = (int)dec->time_base; |
1731 |
|
stats->data.vop.time_increment = 0; /* XXX: todo */ |
1732 |
|
} |
1733 |
} |
} |
1734 |
|
|
1735 |
|
|
1736 |
int |
int |
1737 |
decoder_decode(DECODER * dec, |
decoder_decode(DECODER * dec, |
1738 |
XVID_DEC_FRAME * frame, XVID_DEC_STATS * stats) |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) |
1739 |
{ |
{ |
1740 |
|
|
1741 |
Bitstream bs; |
Bitstream bs; |
1746 |
uint32_t fcode_backward; |
uint32_t fcode_backward; |
1747 |
uint32_t intra_dc_threshold; |
uint32_t intra_dc_threshold; |
1748 |
WARPPOINTS gmc_warp; |
WARPPOINTS gmc_warp; |
1749 |
uint32_t vop_type; |
int coding_type; |
1750 |
int success = 0; |
int success, output, seen_something; |
|
int output = 0; |
|
|
int seen_something = 0; |
|
1751 |
|
|
1752 |
start_global_timer(); |
if (XVID_VERSION_MAJOR(frame->version) != 1 || (stats && XVID_VERSION_MAJOR(stats->version) != 1)) /* v1.x.x */ |
1753 |
|
return XVID_ERR_VERSION; |
1754 |
|
|
1755 |
dec->low_delay_default = (frame->general & XVID_DEC_LOWDELAY); |
start_global_timer(); |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
|
1756 |
|
|
1757 |
if ((frame->general & XVID_DEC_DISCONTINUITY)) |
dec->low_delay_default = (frame->general & XVID_LOWDELAY); |
1758 |
|
if ((frame->general & XVID_DISCONTINUITY)) |
1759 |
dec->frames = 0; |
dec->frames = 0; |
1760 |
|
dec->out_frm = (frame->output.csp == XVID_CSP_SLICE) ? &frame->output : NULL; |
1761 |
|
|
1762 |
if (frame->length < 0) /* decoder flush */ |
if (frame->length < 0) /* decoder flush */ |
1763 |
{ |
{ |
1764 |
|
int ret; |
1765 |
/* if not decoding "low_delay/packed", and this isn't low_delay and |
/* if not decoding "low_delay/packed", and this isn't low_delay and |
1766 |
we have a reference frame, then outout the reference frame */ |
we have a reference frame, then outout the reference frame */ |
1767 |
if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) |
if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { |
1768 |
{ |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
1769 |
decoder_output(dec, &dec->refn[0], dec->mbs, frame, dec->last_reduced_resolution); |
dec->frames = 0; |
1770 |
output = 1; |
ret = 0; |
1771 |
} |
}else{ |
1772 |
|
if (stats) stats->type = XVID_TYPE_NOTHING; |
1773 |
frame->length = 0; |
ret = XVID_ERR_END; |
|
if (stats) |
|
|
{ |
|
|
stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; |
|
|
stats->data.vop.time_base = (int)dec->time_base; |
|
|
stats->data.vop.time_increment = 0; //XXX: todo |
|
1774 |
} |
} |
1775 |
|
|
1776 |
emms(); |
emms(); |
|
|
|
1777 |
stop_global_timer(); |
stop_global_timer(); |
1778 |
return XVID_ERR_OK; |
return ret; |
1779 |
} |
} |
1780 |
|
|
1781 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1782 |
|
|
1783 |
// XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's |
/* XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's */ |
1784 |
if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
1785 |
{ |
{ |
|
if (stats) |
|
|
stats->notify = XVID_DEC_VOP; |
|
|
frame->length = 1; |
|
1786 |
image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, |
image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, |
1787 |
frame->image, frame->stride, frame->colorspace, dec->interlacing); |
(uint8_t**)frame->output.plane, frame->output.stride, frame->output.csp, dec->interlacing); |
1788 |
|
if (stats) stats->type = XVID_TYPE_NOTHING; |
1789 |
emms(); |
emms(); |
1790 |
return XVID_ERR_OK; |
return 1; /* one byte consumed */ |
1791 |
} |
} |
1792 |
|
|
1793 |
|
success = 0; |
1794 |
|
output = 0; |
1795 |
|
seen_something = 0; |
1796 |
|
|
1797 |
repeat: |
repeat: |
1798 |
|
|
1799 |
vop_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
coding_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
1800 |
&quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); |
&quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); |
1801 |
|
|
1802 |
DPRINTF(DPRINTF_HEADER, "vop_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i", |
DPRINTF(XVID_DEBUG_HEADER, "coding_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i\n", |
1803 |
vop_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); |
coding_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); |
1804 |
|
|
1805 |
if (vop_type == - 1) |
if (coding_type == -1) /* nothing */ |
1806 |
{ |
{ |
1807 |
if (success) goto done; |
if (success) goto done; |
1808 |
|
if (stats) stats->type = XVID_TYPE_NOTHING; |
1809 |
emms(); |
emms(); |
1810 |
return XVID_ERR_FAIL; |
return BitstreamPos(&bs)/8; |
1811 |
} |
} |
1812 |
|
|
1813 |
if (vop_type == -2 || vop_type == -3) |
if (coding_type == -2 || coding_type == -3) /* vol and/or resize */ |
1814 |
{ |
{ |
1815 |
if (vop_type == -3) |
if (coding_type == -3) |
1816 |
decoder_resize(dec); |
decoder_resize(dec); |
1817 |
|
|
1818 |
if (stats) |
if (stats) |
1819 |
{ |
{ |
1820 |
stats->notify = XVID_DEC_VOL; |
stats->type = XVID_TYPE_VOL; |
1821 |
stats->data.vol.general = 0; |
stats->data.vol.general = 0; |
1822 |
if (dec->interlacing) |
/*XXX: if (dec->interlacing) |
1823 |
stats->data.vol.general |= XVID_INTERLACING; |
stats->data.vol.general |= ++INTERLACING; */ |
1824 |
stats->data.vol.width = dec->width; |
stats->data.vol.width = dec->width; |
1825 |
stats->data.vol.height = dec->height; |
stats->data.vol.height = dec->height; |
1826 |
stats->data.vol.aspect_ratio = dec->aspect_ratio; |
stats->data.vol.par = dec->aspect_ratio; |
1827 |
stats->data.vol.par_width = dec->par_width; |
stats->data.vol.par_width = dec->par_width; |
1828 |
stats->data.vol.par_height = dec->par_height; |
stats->data.vol.par_height = dec->par_height; |
|
frame->length = BitstreamPos(&bs) / 8; |
|
1829 |
emms(); |
emms(); |
1830 |
return XVID_ERR_OK; |
return BitstreamPos(&bs)/8; /* number of bytes consumed */ |
1831 |
} |
} |
1832 |
goto repeat; |
goto repeat; |
1833 |
} |
} |
1834 |
|
|
1835 |
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; // init pred vector to 0 |
dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
|
|
|
1836 |
|
|
1837 |
/* packed_mode: special-N_VOP treament */ |
/* packed_mode: special-N_VOP treament */ |
1838 |
if (dec->packed_mode && vop_type == N_VOP) |
if (dec->packed_mode && coding_type == N_VOP) |
1839 |
{ |
{ |
1840 |
if (dec->low_delay_default && dec->frames > 0) |
if (dec->low_delay_default && dec->frames > 0) |
1841 |
{ |
{ |
1842 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
1843 |
output = 1; |
output = 1; |
1844 |
} |
} |
1845 |
/* ignore otherwise */ |
/* ignore otherwise */ |
1846 |
} |
} |
1847 |
else if (vop_type != B_VOP) |
else if (coding_type != B_VOP) |
1848 |
{ |
{ |
1849 |
switch(vop_type) |
switch(coding_type) |
1850 |
{ |
{ |
1851 |
case I_VOP : |
case I_VOP : |
1852 |
decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); |
decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); |
1860 |
fcode_forward, intra_dc_threshold, &gmc_warp); |
fcode_forward, intra_dc_threshold, &gmc_warp); |
1861 |
break; |
break; |
1862 |
case N_VOP : |
case N_VOP : |
1863 |
|
/* XXX: not_coded vops are not used for forward prediction */ |
1864 |
|
/* we should not swap(last_mbs,mbs) */ |
1865 |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1866 |
break; |
break; |
1867 |
} |
} |
1870 |
{ |
{ |
1871 |
image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, |
image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, |
1872 |
(dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, |
(dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, |
1873 |
16, XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV); |
16, 0); |
1874 |
} |
} |
1875 |
|
|
1876 |
/* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
/* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
1878 |
{ |
{ |
1879 |
if (dec->low_delay) |
if (dec->low_delay) |
1880 |
{ |
{ |
1881 |
decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type); |
1882 |
output = 1; |
output = 1; |
1883 |
} |
} |
1884 |
else if (dec->frames > 0) /* is the reference frame valid? */ |
else if (dec->frames > 0) /* is the reference frame valid? */ |
1885 |
{ |
{ |
1886 |
/* output the reference frame */ |
/* output the reference frame */ |
1887 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
1888 |
output = 1; |
output = 1; |
1889 |
} |
} |
1890 |
} |
} |
1891 |
|
|
1892 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1893 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1894 |
mb_swap(&dec->mbs, &dec->last_mbs); |
SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); |
1895 |
dec->last_reduced_resolution = reduced_resolution; |
dec->last_reduced_resolution = reduced_resolution; |
1896 |
|
dec->last_coding_type = coding_type; |
1897 |
|
|
1898 |
dec->frames++; |
dec->frames++; |
1899 |
seen_something = 1; |
seen_something = 1; |
1902 |
|
|
1903 |
if (dec->low_delay) |
if (dec->low_delay) |
1904 |
{ |
{ |
1905 |
DPRINTF(DPRINTF_ERROR, "warning: bvop found in low_delay==1 stream"); |
DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); |
1906 |
dec->low_delay = 1; |
dec->low_delay = 1; |
1907 |
} |
} |
1908 |
|
|
1920 |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1921 |
} |
} |
1922 |
|
|
1923 |
decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type); |
1924 |
output = 1; |
output = 1; |
1925 |
dec->frames++; |
dec->frames++; |
1926 |
} |
} |
1943 |
if (dec->packed_mode && seen_something) |
if (dec->packed_mode && seen_something) |
1944 |
{ |
{ |
1945 |
/* output the recently decoded frame */ |
/* output the recently decoded frame */ |
1946 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
|
output = 1; |
|
1947 |
} |
} |
1948 |
else |
else |
1949 |
{ |
{ |
1953 |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, |
1954 |
"bframe decoder lag"); |
"bframe decoder lag"); |
1955 |
|
|
1956 |
decoder_output(dec, &dec->cur, NULL, frame, 1 /*disable pp*/); |
decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP); |
1957 |
} |
if (stats) stats->type = XVID_TYPE_NOTHING; |
|
} |
|
|
|
|
|
frame->length = BitstreamPos(&bs) / 8; |
|
1958 |
|
|
1959 |
if (stats) |
} |
|
{ |
|
|
stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; |
|
|
stats->data.vop.time_base = (int)dec->time_base; |
|
|
stats->data.vop.time_increment = 0; //XXX: todo |
|
1960 |
} |
} |
1961 |
|
|
1962 |
emms(); |
emms(); |
|
|
|
1963 |
stop_global_timer(); |
stop_global_timer(); |
1964 |
|
|
1965 |
return XVID_ERR_OK; |
return BitstreamPos(&bs) / 8; /* number of bytes consumed */ |
1966 |
} |
} |