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/****************************************************************************** |
/***************************************************************************** |
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* * |
* |
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* This file is part of XviD, a free MPEG-4 video encoder/decoder * |
* XVID MPEG-4 VIDEO CODEC |
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* * |
* - Bitstream reader/writer - |
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* XviD is an implementation of a part of one or more MPEG-4 Video tools * |
* |
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* as specified in ISO/IEC 14496-2 standard. Those intending to use this * |
* Copyright (C) 2001-2003 Peter Ross <pross@xvid.org> |
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* software module in hardware or software products are advised that its * |
* 2003 Cristoph Lampert <gruel@web.de> |
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* use may infringe existing patents or copyrights, and any such use * |
* |
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* would be at such party's own risk. The original developer of this * |
* This program is free software ; you can redistribute it and/or modify |
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* software module and his/her company, and subsequent editors and their * |
* it under the terms of the GNU General Public License as published by |
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* companies, will have no liability for use of this software or * |
* the Free Software Foundation ; either version 2 of the License, or |
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* modifications or derivatives thereof. * |
* (at your option) any later version. |
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* * |
* |
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* XviD is free software; you can redistribute it and/or modify it * |
* This program is distributed in the hope that it will be useful, |
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* under the terms of the GNU General Public License as published by * |
* but WITHOUT ANY WARRANTY ; without even the implied warranty of |
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* the Free Software Foundation; either version 2 of the License, or * |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* (at your option) any later version. * |
* GNU General Public License for more details. |
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* * |
* |
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* XviD is distributed in the hope that it will be useful, but * |
* You should have received a copy of the GNU General Public License |
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* WITHOUT ANY WARRANTY; without even the implied warranty of * |
* along with this program ; if not, write to the Free Software |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* GNU General Public License for more details. * |
* |
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* * |
* $Id$ |
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* You should have received a copy of the GNU General Public License * |
* |
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* along with this program; if not, write to the Free Software * |
****************************************************************************/ |
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* 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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* bitstream.c * |
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* * |
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* Copyright (C) 2001 - Peter Ross <pross@cs.rmit.edu.au> * |
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* * |
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* For more information visit the XviD homepage: http://www.xvid.org * |
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* * |
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******************************************************************************/ |
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/****************************************************************************** |
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* * |
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* Revision history: * |
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* * |
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* 05.01.2003 GMC support - gruel * |
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* 04.10.2002 qpel support - Isibaar * |
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* 11.07.2002 add VOP width & height return to dec when dec->width * |
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* or dec->height is 0 (for use in examples/ex1.c) * |
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* MinChen <chenm001@163.com> * |
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* 22.05.2002 bs_put_matrix fix * |
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* 20.05.2002 added BitstreamWriteUserData * |
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* 19.06.2002 Fix a little bug in use custom quant matrix * |
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* MinChen <chenm001@163.com> * |
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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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* 06.05.2002 low_delay * |
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* 06.05.2002 fixed fincr/fbase error * |
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* 01.05.2002 added BVOP support to BitstreamWriteVopHeader * |
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* 15.04.2002 rewrite log2bin use asm386 By MinChen <chenm001@163.com> * |
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* 26.03.2002 interlacing support * |
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* 03.03.2002 qmatrix writing * |
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* 03.03.2002 merged BITREADER and BITWRITER * |
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* 30.02.2002 intra_dc_threshold support * |
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* 04.12.2001 support for additional headers * |
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* 16.12.2001 inital version * |
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* * |
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******************************************************************************/ |
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#include <string.h> |
#include <string.h> |
28 |
#include <stdio.h> |
#include <stdio.h> |
36 |
static uint32_t __inline |
static uint32_t __inline |
37 |
log2bin(uint32_t value) |
log2bin(uint32_t value) |
38 |
{ |
{ |
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/* Changed by Chenm001 */ |
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#if !defined(_MSC_VER) |
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39 |
int n = 0; |
int n = 0; |
40 |
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41 |
while (value) { |
while (value) { |
43 |
n++; |
n++; |
44 |
} |
} |
45 |
return n; |
return n; |
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#else |
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__asm { |
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bsr eax, value |
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inc eax |
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} |
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#endif |
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46 |
} |
} |
47 |
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48 |
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71 |
matrix[scan_tables[0][i++]] = value; |
matrix[scan_tables[0][i++]] = value; |
72 |
} |
} |
73 |
while (value != 0 && i < 64); |
while (value != 0 && i < 64); |
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i--; /* fix little bug at coeff not full */ |
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74 |
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75 |
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if (value != 0) return; |
76 |
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77 |
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i--; |
78 |
while (i < 64) { |
while (i < 64) { |
79 |
matrix[scan_tables[0][i++]] = last; |
matrix[scan_tables[0][i++]] = last; |
80 |
} |
} |
549 |
#endif |
#endif |
550 |
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551 |
if (dec->time_inc_resolution > 0) { |
if (dec->time_inc_resolution > 0) { |
552 |
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
dec->time_inc_bits = MAX(log2bin(dec->time_inc_resolution-1), 1); |
553 |
} else { |
} else { |
554 |
#if 0 |
#if 0 |
555 |
dec->time_inc_bits = 0; |
dec->time_inc_bits = 0; |
664 |
DPRINTF(XVID_DEBUG_HEADER, "load_intra_quant_mat\n"); |
DPRINTF(XVID_DEBUG_HEADER, "load_intra_quant_mat\n"); |
665 |
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666 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
667 |
set_intra_matrix(matrix); |
set_intra_matrix(dec->mpeg_quant_matrices, matrix); |
668 |
} else |
} else |
669 |
set_intra_matrix(get_default_intra_matrix()); |
set_intra_matrix(dec->mpeg_quant_matrices, get_default_intra_matrix()); |
670 |
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671 |
if (BitstreamGetBit(bs)) /* load_inter_quant_mat */ |
if (BitstreamGetBit(bs)) /* load_inter_quant_mat */ |
672 |
{ |
{ |
675 |
DPRINTF(XVID_DEBUG_HEADER, "load_inter_quant_mat\n"); |
DPRINTF(XVID_DEBUG_HEADER, "load_inter_quant_mat\n"); |
676 |
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677 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
678 |
set_inter_matrix(matrix); |
set_inter_matrix(dec->mpeg_quant_matrices, matrix); |
679 |
} else |
} else |
680 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(dec->mpeg_quant_matrices, get_default_inter_matrix()); |
681 |
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682 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
683 |
DPRINTF(XVID_DEBUG_ERROR, "greyscale matrix not supported\n"); |
DPRINTF(XVID_DEBUG_ERROR, "greyscale matrix not supported\n"); |
816 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
817 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
818 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
819 |
dec->time = time_increment; |
dec->time = dec->time_base*dec->time_inc_resolution + time_increment; |
820 |
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dec->time_pp = (int32_t)(dec->time - dec->last_non_b_time); |
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#if 0 |
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dec->time_base * dec->time_inc_resolution + |
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time_increment; |
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#endif |
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dec->time_pp = (uint32_t) |
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(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
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821 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
822 |
} else { |
} else { |
823 |
dec->time = time_increment; |
dec->time = (dec->last_time_base + time_incr)*dec->time_inc_resolution + time_increment; |
824 |
#if 0 |
dec->time_bp = dec->time_pp - (int32_t)(dec->last_non_b_time - dec->time); |
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(dec->last_time_base + |
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time_incr) * dec->time_inc_resolution + time_increment; |
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#endif |
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dec->time_bp = (uint32_t) |
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(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
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825 |
} |
} |
826 |
DPRINTF(XVID_DEBUG_HEADER,"time_pp=%i\n", dec->time_pp); |
DPRINTF(XVID_DEBUG_HEADER,"time_pp=%i\n", dec->time_pp); |
827 |
DPRINTF(XVID_DEBUG_HEADER,"time_bp=%i\n", dec->time_bp); |
DPRINTF(XVID_DEBUG_HEADER,"time_bp=%i\n", dec->time_bp); |
1005 |
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1006 |
DPRINTF(XVID_DEBUG_STARTCODE, "<user_data>: %s\n", tmp); |
DPRINTF(XVID_DEBUG_STARTCODE, "<user_data>: %s\n", tmp); |
1007 |
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1008 |
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/* read xvid bitstream version */ |
1009 |
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if(strncmp(tmp, "XviD", 4) == 0) { |
1010 |
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if (tmp[strlen(tmp)-1] == 'C') { |
1011 |
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sscanf(tmp, "XviD%dC", &dec->bs_version); |
1012 |
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dec->cartoon_mode = 1; |
1013 |
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} |
1014 |
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else |
1015 |
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sscanf(tmp, "XviD%d", &dec->bs_version); |
1016 |
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1017 |
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DPRINTF(XVID_DEBUG_HEADER, "xvid bitstream version=%i\n", dec->bs_version); |
1018 |
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} |
1019 |
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1020 |
/* divx detection */ |
/* divx detection */ |
1021 |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1022 |
if (i < 2) |
if (i < 2) |
1050 |
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1051 |
static void |
static void |
1052 |
bs_put_matrix(Bitstream * bs, |
bs_put_matrix(Bitstream * bs, |
1053 |
const int16_t * matrix) |
const uint16_t * matrix) |
1054 |
{ |
{ |
1055 |
int i, j; |
int i, j; |
1056 |
const int last = matrix[scan_tables[0][63]]; |
const int last = matrix[scan_tables[0][63]]; |
1072 |
*/ |
*/ |
1073 |
void |
void |
1074 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
1075 |
const MBParam * pParam) |
const MBParam * pParam, |
1076 |
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const FRAMEINFO * const frame) |
1077 |
{ |
{ |
1078 |
static const unsigned int vo_id = 0; |
static const unsigned int vo_id = 0; |
1079 |
static const unsigned int vol_id = 0; |
static const unsigned int vol_id = 0; |
1080 |
int vol_ver_id=1; |
int vol_ver_id=1; |
1081 |
int vol_type_ind=VIDOBJLAY_TYPE_SIMPLE; |
int vol_type_ind=VIDOBJLAY_TYPE_SIMPLE; |
1082 |
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int vol_profile = pParam->profile; |
1083 |
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1084 |
if ( (pParam->vol_flags & XVID_VOL_QUARTERPEL) || |
if ( (pParam->vol_flags & XVID_VOL_QUARTERPEL) || |
1085 |
(pParam->vol_flags & XVID_VOL_GMC) || |
(pParam->vol_flags & XVID_VOL_GMC) || |
1105 |
* byte aligned, and that always 1-8 padding bits have been written |
* byte aligned, and that always 1-8 padding bits have been written |
1106 |
*/ |
*/ |
1107 |
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1108 |
if (pParam->profile) { |
if (!vol_profile) { |
1109 |
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
/* Profile was not set by client app, use the more permissive profile |
1110 |
BitstreamPutBits(bs, pParam->profile, 8); |
* compatible with the vol_type_id */ |
1111 |
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switch(vol_type_ind) { |
1112 |
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case VIDOBJLAY_TYPE_ASP: |
1113 |
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vol_profile = 0xf5; /* ASP level 5 */ |
1114 |
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break; |
1115 |
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case VIDOBJLAY_TYPE_ART_SIMPLE: |
1116 |
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vol_profile = 0x94; /* ARTS level 4 */ |
1117 |
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break; |
1118 |
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default: |
1119 |
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vol_profile = 0x03; /* Simple level 3 */ |
1120 |
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break; |
1121 |
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} |
1122 |
} |
} |
1123 |
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1124 |
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/* Write the VOS header */ |
1125 |
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BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
1126 |
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BitstreamPutBits(bs, vol_profile, 8); /* profile_and_level_indication */ |
1127 |
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1128 |
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1129 |
/* visual_object_start_code */ |
/* visual_object_start_code */ |
1130 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1131 |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1132 |
BitstreamPutBits(bs, 0, 1); /* is_visual_object_identifier */ |
BitstreamPutBits(bs, 0, 1); /* is_visual_object_identifier */ |
1133 |
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1134 |
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/* Video type */ |
1135 |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); /* visual_object_type */ |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); /* visual_object_type */ |
1136 |
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BitstreamPutBit(bs, 0); /* video_signal_type */ |
1137 |
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1138 |
/* video object_start_code & vo_id */ |
/* video object_start_code & vo_id */ |
1139 |
BitstreamPad(bs); |
BitstreamPadAlways(bs); /* next_start_code() */ |
1140 |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1141 |
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1142 |
/* video_object_layer_start_code & vol_id */ |
/* video_object_layer_start_code & vol_id */ |
1146 |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
1147 |
BitstreamPutBits(bs, vol_type_ind, 8); /* video_object_type_indication */ |
BitstreamPutBits(bs, vol_type_ind, 8); /* video_object_type_indication */ |
1148 |
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1149 |
if (vol_ver_id == 1) |
if (vol_ver_id == 1) { |
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{ |
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1150 |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
1151 |
} |
} else { |
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else |
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{ |
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1152 |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
1153 |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
1154 |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==lowest, 7==highest) ?? */ |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==highest, 7==lowest) */ |
1155 |
} |
} |
1156 |
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1157 |
BitstreamPutBits(bs, 1, 4); /* aspect_ratio_info (1=1:1) */ |
/* Aspect ratio */ |
1158 |
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BitstreamPutBits(bs, pParam->par, 4); /* aspect_ratio_info (1=1:1) */ |
1159 |
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if(pParam->par == XVID_PAR_EXT) { |
1160 |
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BitstreamPutBits(bs, pParam->par_width, 8); |
1161 |
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BitstreamPutBits(bs, pParam->par_height, 8); |
1162 |
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} |
1163 |
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1164 |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
1165 |
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
1188 |
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1189 |
if (pParam->fincr>0) { |
if (pParam->fincr>0) { |
1190 |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
1191 |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); /* fixed_vop_time_increment */ |
BitstreamPutBits(bs, pParam->fincr, MAX(log2bin(pParam->fbase-1),1)); /* fixed_vop_time_increment */ |
1192 |
}else{ |
}else{ |
1193 |
BitstreamPutBit(bs, 0); /* fixed_vop_rate = 0 */ |
BitstreamPutBit(bs, 0); /* fixed_vop_rate = 0 */ |
1194 |
} |
} |
1205 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) |
1206 |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
1207 |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
1208 |
BitstreamPutBits(bs, 2, 6); /* no_of_sprite_warping_points */ |
BitstreamPutBits(bs, 3, 6); /* no_of_sprite_warping_points */ |
1209 |
BitstreamPutBits(bs, 3, 2); /* sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
BitstreamPutBits(bs, 3, 2); /* sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
1210 |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
1211 |
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1226 |
BitstreamPutBit(bs, pParam->vol_flags & XVID_VOL_MPEGQUANT); |
BitstreamPutBit(bs, pParam->vol_flags & XVID_VOL_MPEGQUANT); |
1227 |
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1228 |
if ((pParam->vol_flags & XVID_VOL_MPEGQUANT)) { |
if ((pParam->vol_flags & XVID_VOL_MPEGQUANT)) { |
1229 |
BitstreamPutBit(bs, get_intra_matrix_status()); /* load_intra_quant_mat */ |
BitstreamPutBit(bs, is_custom_intra_matrix(pParam->mpeg_quant_matrices)); /* load_intra_quant_mat */ |
1230 |
if (get_intra_matrix_status()) { |
if(is_custom_intra_matrix(pParam->mpeg_quant_matrices)) |
1231 |
bs_put_matrix(bs, get_intra_matrix()); |
bs_put_matrix(bs, get_intra_matrix(pParam->mpeg_quant_matrices)); |
1232 |
} |
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1233 |
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BitstreamPutBit(bs, is_custom_inter_matrix(pParam->mpeg_quant_matrices)); /* load_inter_quant_mat */ |
1234 |
BitstreamPutBit(bs, get_inter_matrix_status()); /* load_inter_quant_mat */ |
if(is_custom_inter_matrix(pParam->mpeg_quant_matrices)) |
1235 |
if (get_inter_matrix_status()) { |
bs_put_matrix(bs, get_inter_matrix(pParam->mpeg_quant_matrices)); |
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bs_put_matrix(bs, get_inter_matrix()); |
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} |
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1236 |
} |
} |
1237 |
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1238 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
1246 |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
1247 |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
1248 |
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1249 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) { |
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{ |
|
1250 |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
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1251 |
BitstreamPutBit(bs, (pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)?1:0); |
BitstreamPutBit(bs, (pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)?1:0); |
1252 |
/* reduced_resolution_vop_enabled */ |
/* reduced_resolution_vop_enabled */ |
1253 |
} |
} |
1254 |
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1255 |
BitstreamPutBit(bs, 0); /* scalability */ |
BitstreamPutBit(bs, 0); /* scalability */ |
1256 |
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1257 |
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BitstreamPadAlways(bs); /* next_start_code(); */ |
1258 |
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1259 |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1260 |
#define DIVX5_ID "DivX000b000p" |
#define DIVX5_ID "DivX999b000p" |
1261 |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) { |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) { |
1262 |
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
1263 |
} |
} |
1264 |
|
|
1265 |
/* xvid id */ |
/* xvid id */ |
1266 |
#define XVID_ID "XviD" XVID_BS_VERSION |
{ |
1267 |
BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); |
const char xvid_user_format[] = "XviD%04d%c"; |
1268 |
|
char xvid_user_data[100]; |
1269 |
|
sprintf(xvid_user_data, |
1270 |
|
xvid_user_format, |
1271 |
|
XVID_BS_VERSION, |
1272 |
|
(frame->vop_flags & XVID_VOP_CARTOON)?'C':'\0'); |
1273 |
|
BitstreamWriteUserData(bs, xvid_user_data, strlen(xvid_user_data)); |
1274 |
|
} |
1275 |
} |
} |
1276 |
|
|
1277 |
|
|
1283 |
Bitstream * const bs, |
Bitstream * const bs, |
1284 |
const MBParam * pParam, |
const MBParam * pParam, |
1285 |
const FRAMEINFO * const frame, |
const FRAMEINFO * const frame, |
1286 |
int vop_coded) |
int vop_coded, |
1287 |
|
unsigned int quant) |
1288 |
{ |
{ |
1289 |
uint32_t i; |
uint32_t i; |
1290 |
|
|
1312 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1313 |
|
|
1314 |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
1315 |
|
BitstreamPutBits(bs, frame->ticks, MAX(log2bin(pParam->fbase-1), 1)); |
|
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
|
1316 |
#if 0 |
#if 0 |
1317 |
DPRINTF("[%i:%i] %c", |
DPRINTF("[%i:%i] %c", |
1318 |
frame->seconds, frame->ticks, |
frame->seconds, frame->ticks, |
1325 |
|
|
1326 |
if (!vop_coded) { |
if (!vop_coded) { |
1327 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
1328 |
|
#if 0 |
1329 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1330 |
|
#endif |
1331 |
|
/* NB: It's up to the function caller to write the next_start_code(). |
1332 |
|
* At the moment encoder.c respects that requisite because a VOP |
1333 |
|
* always ends with a next_start_code either if it's coded or not |
1334 |
|
* and encoder.c terminates a frame with a next_start_code in whatever |
1335 |
|
* case */ |
1336 |
return; |
return; |
1337 |
} |
} |
1338 |
|
|
1354 |
if (frame->coding_type == S_VOP) { |
if (frame->coding_type == S_VOP) { |
1355 |
if (1) { /* no_of_sprite_warping_points>=1 (we use 2!) */ |
if (1) { /* no_of_sprite_warping_points>=1 (we use 2!) */ |
1356 |
int k; |
int k; |
1357 |
for (k=0;k<2;k++) |
for (k=0;k<3;k++) |
1358 |
{ |
{ |
1359 |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); /* du[k] */ |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); /* du[k] */ |
1360 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1376 |
|
|
1377 |
|
|
1378 |
#if 0 |
#if 0 |
1379 |
DPRINTF(XVID_DEBUG_HEADER, "quant = %i\n", frame->quant); |
DPRINTF(XVID_DEBUG_HEADER, "quant = %i\n", quant); |
1380 |
#endif |
#endif |
1381 |
|
|
1382 |
BitstreamPutBits(bs, frame->quant, 5); /* quantizer */ |
BitstreamPutBits(bs, quant, 5); /* quantizer */ |
1383 |
|
|
1384 |
if (frame->coding_type != I_VOP) |
if (frame->coding_type != I_VOP) |
1385 |
BitstreamPutBits(bs, frame->fcode, 3); /* forward_fixed_code */ |
BitstreamPutBits(bs, frame->fcode, 3); /* forward_fixed_code */ |