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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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* 28.10.2002 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> |
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#include <stdio.h> |
#include <stdio.h> |
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#include "mbcoding.h" |
#include "mbcoding.h" |
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static uint32_t __inline |
static const uint8_t log2_tab_16[16] = { 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4 }; |
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log2bin(uint32_t value) |
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static uint32_t __inline log2bin(uint32_t value) |
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{ |
{ |
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/* Changed by Chenm001 */ |
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#if !defined(_MSC_VER) |
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int n = 0; |
int n = 0; |
41 |
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if (value & 0xffff0000) { |
42 |
while (value) { |
value >>= 16; |
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value >>= 1; |
n += 16; |
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n++; |
} |
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} |
if (value & 0xff00) { |
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return n; |
value >>= 8; |
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#else |
n += 8; |
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__asm { |
} |
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bsr eax, value |
if (value & 0xf0) { |
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inc eax |
value >>= 4; |
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n += 4; |
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} |
} |
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#endif |
return n + log2_tab_16[value]; |
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} |
} |
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static const uint32_t intra_dc_threshold_table[] = { |
static const uint32_t intra_dc_threshold_table[] = { |
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32, /* never use */ |
32, /* never use */ |
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13, |
13, |
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}; |
}; |
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void |
static void |
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bs_get_matrix(Bitstream * bs, |
bs_get_matrix(Bitstream * bs, |
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uint8_t * matrix) |
uint8_t * matrix) |
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{ |
{ |
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matrix[scan_tables[0][i++]] = value; |
matrix[scan_tables[0][i++]] = value; |
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} |
} |
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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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if (value != 0) return; |
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i--; |
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while (i < 64) { |
while (i < 64) { |
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matrix[scan_tables[0][i++]] = last; |
matrix[scan_tables[0][i++]] = last; |
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} |
} |
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// for PVOP addbits == fcode - 1 |
/* |
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// for BVOP addbits == max(fcode,bcode) - 1 |
* for PVOP addbits == fcode - 1 |
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// returns mbpos |
* for BVOP addbits == max(fcode,bcode) - 1 |
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* returns mbpos |
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*/ |
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int |
int |
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read_video_packet_header(Bitstream *bs, |
read_video_packet_header(Bitstream *bs, |
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DECODER * dec, |
DECODER * dec, |
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BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
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BitstreamSkip(bs, startcode_bits); |
BitstreamSkip(bs, startcode_bits); |
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DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<video_packet_header>\n"); |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
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{ |
{ |
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} |
} |
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mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
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DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
DPRINTF(XVID_DEBUG_HEADER, "mbnum %i\n", mbnum); |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
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{ |
{ |
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*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(XVID_DEBUG_HEADER, "quant %i\n", *quant); |
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} |
} |
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if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
hec = BitstreamGetBit(bs); /* header_extension_code */ |
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DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
DPRINTF(XVID_DEBUG_HEADER, "header_extension_code %i\n", hec); |
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if (hec) |
if (hec) |
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{ |
{ |
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int time_base; |
int time_base; |
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if (dec->time_inc_bits) |
if (dec->time_inc_bits) |
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time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
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READ_MARKER(); |
READ_MARKER(); |
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DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
DPRINTF(XVID_DEBUG_HEADER,"time %i:%i\n", time_base, time_increment); |
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coding_type = BitstreamGetBits(bs, 2); |
coding_type = BitstreamGetBits(bs, 2); |
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DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
DPRINTF(XVID_DEBUG_HEADER,"coding_type %i\n", coding_type); |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
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{ |
{ |
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if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
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dec->sprite_warping_points > 0) |
dec->sprite_warping_points > 0) |
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{ |
{ |
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// TODO: sprite trajectory |
/* TODO: sprite trajectory */ |
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} |
} |
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if (dec->reduced_resolution_enable && |
if (dec->reduced_resolution_enable && |
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dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
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if (coding_type != I_VOP && fcode_forward) |
if (coding_type != I_VOP && fcode_forward) |
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{ |
{ |
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*fcode_forward = BitstreamGetBits(bs, 3); |
*fcode_forward = BitstreamGetBits(bs, 3); |
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DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); |
DPRINTF(XVID_DEBUG_HEADER,"fcode_forward %i\n", *fcode_forward); |
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} |
} |
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if (coding_type == B_VOP && fcode_backward) |
if (coding_type == B_VOP && fcode_backward) |
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{ |
{ |
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*fcode_backward = BitstreamGetBits(bs, 3); |
*fcode_backward = BitstreamGetBits(bs, 3); |
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DPRINTF(DPRINTF_HEADER,"fcode_backward %i", fcode_backward); |
DPRINTF(XVID_DEBUG_HEADER,"fcode_backward %i\n", *fcode_backward); |
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} |
} |
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} |
} |
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} |
} |
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if (dec->newpred_enable) |
if (dec->newpred_enable) |
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int vop_id_for_prediction; |
int vop_id_for_prediction; |
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vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
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DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
DPRINTF(XVID_DEBUG_HEADER, "vop_id %i\n", vop_id); |
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if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
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{ |
{ |
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vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
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DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
DPRINTF(XVID_DEBUG_HEADER, "vop_id_for_prediction %i\n", vop_id_for_prediction); |
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} |
} |
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READ_MARKER(); |
READ_MARKER(); |
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} |
} |
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ESTIMATION * e = &dec->estimation; |
ESTIMATION * e = &dec->estimation; |
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e->method = BitstreamGetBits(bs, 2); /* estimation_method */ |
e->method = BitstreamGetBits(bs, 2); /* estimation_method */ |
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DPRINTF(DPRINTF_HEADER,"+ complexity_estimation_header; method=%i", e->method); |
DPRINTF(XVID_DEBUG_HEADER,"+ complexity_estimation_header; method=%i\n", e->method); |
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if (e->method == 0 || e->method == 1) |
if (e->method == 0 || e->method == 1) |
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{ |
{ |
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BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
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DECODER * dec, |
DECODER * dec, |
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uint32_t * rounding, |
uint32_t * rounding, |
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uint32_t * reduced_resolution, |
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uint32_t * quant, |
uint32_t * quant, |
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uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
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uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
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uint32_t * intra_dc_threshold, |
uint32_t * intra_dc_threshold, |
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VECTOR * gmc_mv) |
WARPPOINTS *gmc_warp) |
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{ |
{ |
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uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
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uint32_t coding_type; |
uint32_t coding_type; |
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uint32_t start_code; |
uint32_t start_code; |
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uint32_t time_incr = 0; |
uint32_t time_incr = 0; |
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int32_t time_increment; |
int32_t time_increment = 0; |
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int resize = 0; |
int resize = 0; |
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do { |
while ((BitstreamPos(bs) >> 3) + 4 <= bs->length) { |
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BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
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start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
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int profile; |
int profile; |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<visual_object_sequence>\n"); |
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BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); /* visual_object_sequence_start_code */ |
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profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); /* profile_and_level_indication */ |
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DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
DPRINTF(XVID_DEBUG_HEADER, "profile_and_level_indication %i\n", profile); |
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} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
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BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); /* visual_object_sequence_stop_code */ |
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DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "</visual_object_sequence>\n"); |
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} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
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int visobj_ver_id; |
DPRINTF(XVID_DEBUG_STARTCODE, "<visual_object>\n"); |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
BitstreamSkip(bs, 32); /* visual_object_start_code */ |
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if (BitstreamGetBit(bs)) /* is_visual_object_identified */ |
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BitstreamSkip(bs, 32); // visual_object_start_code |
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if (BitstreamGetBit(bs)) // is_visual_object_identified |
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{ |
{ |
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visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
dec->ver_id = BitstreamGetBits(bs, 4); /* visual_object_ver_id */ |
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DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
DPRINTF(XVID_DEBUG_HEADER,"visobj_ver_id %i\n", dec->ver_id); |
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BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); /* visual_object_priority */ |
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} else { |
} else { |
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visobj_ver_id = 1; |
dec->ver_id = 1; |
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} |
} |
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if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) /* visual_object_type */ |
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{ |
{ |
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DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
DPRINTF(XVID_DEBUG_ERROR, "visual_object_type != video\n"); |
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return -1; |
return -1; |
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} |
} |
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BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
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// video_signal_type |
/* video_signal_type */ |
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if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) /* video_signal_type */ |
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{ |
{ |
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DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
DPRINTF(XVID_DEBUG_HEADER,"+ video_signal_type\n"); |
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BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); /* video_format */ |
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BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); /* video_range */ |
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if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) /* color_description */ |
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{ |
{ |
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DPRINTF(DPRINTF_HEADER,"+ color_description"); |
DPRINTF(XVID_DEBUG_HEADER,"+ color_description"); |
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BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); /* color_primaries */ |
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BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); /* transfer_characteristics */ |
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BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); /* matrix_coefficients */ |
458 |
} |
} |
459 |
} |
} |
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} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
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DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<video_object>\n"); |
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DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
DPRINTF(XVID_DEBUG_HEADER, "vo id %i\n", start_code & VIDOBJ_START_CODE_MASK); |
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BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); /* video_object_start_code */ |
466 |
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} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
468 |
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DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<video_object_layer>\n"); |
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DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
DPRINTF(XVID_DEBUG_HEADER, "vol id %i\n", start_code & VIDOBJLAY_START_CODE_MASK); |
471 |
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BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); /* video_object_layer_start_code */ |
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BitstreamSkip(bs, 1); /* random_accessible_vol */ |
474 |
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BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 8); /* video_object_type_indication */ |
476 |
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// video_object_type_indication |
if (BitstreamGetBit(bs)) /* is_object_layer_identifier */ |
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if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && |
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BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
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BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
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BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && |
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BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && |
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BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
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478 |
{ |
{ |
479 |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
DPRINTF(XVID_DEBUG_HEADER, "+ is_object_layer_identifier\n"); |
480 |
BitstreamShowBits(bs, 8)); |
vol_ver_id = BitstreamGetBits(bs, 4); /* video_object_layer_verid */ |
481 |
return -1; |
DPRINTF(XVID_DEBUG_HEADER,"ver_id %i\n", vol_ver_id); |
482 |
} |
BitstreamSkip(bs, 3); /* video_object_layer_priority */ |
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BitstreamSkip(bs, 8); |
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|
|
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
|
|
{ |
|
|
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
|
|
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
|
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
|
|
BitstreamSkip(bs, 3); // video_object_layer_priority |
|
483 |
} else { |
} else { |
484 |
vol_ver_id = 1; |
vol_ver_id = dec->ver_id; |
485 |
} |
} |
486 |
|
|
487 |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
488 |
|
|
489 |
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) /* aspect_ratio_info */ |
490 |
{ |
{ |
491 |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
DPRINTF(XVID_DEBUG_HEADER, "+ aspect_ratio_info\n"); |
492 |
dec->par_width = BitstreamGetBits(bs, 8); // par_width |
dec->par_width = BitstreamGetBits(bs, 8); /* par_width */ |
493 |
dec->par_height = BitstreamGetBits(bs, 8); // par_height |
dec->par_height = BitstreamGetBits(bs, 8); /* par_height */ |
494 |
} |
} |
495 |
|
|
496 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) /* vol_control_parameters */ |
497 |
{ |
{ |
498 |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
DPRINTF(XVID_DEBUG_HEADER, "+ vol_control_parameters\n"); |
499 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); /* chroma_format */ |
500 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); /* low_delay */ |
501 |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
DPRINTF(XVID_DEBUG_HEADER, "low_delay %i\n", dec->low_delay); |
502 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) /* vbv_parameters */ |
503 |
{ |
{ |
504 |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
unsigned int bitrate; |
505 |
BitstreamSkip(bs, 15); // first_half_bitrate |
unsigned int buffer_size; |
506 |
|
unsigned int occupancy; |
507 |
|
|
508 |
|
DPRINTF(XVID_DEBUG_HEADER,"+ vbv_parameters\n"); |
509 |
|
|
510 |
|
bitrate = BitstreamGetBits(bs,15) << 15; /* first_half_bit_rate */ |
511 |
READ_MARKER(); |
READ_MARKER(); |
512 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
bitrate |= BitstreamGetBits(bs,15); /* latter_half_bit_rate */ |
513 |
READ_MARKER(); |
READ_MARKER(); |
514 |
BitstreamSkip(bs, 15); // first_half_vbv_buffer_size |
|
515 |
|
buffer_size = BitstreamGetBits(bs, 15) << 3; /* first_half_vbv_buffer_size */ |
516 |
READ_MARKER(); |
READ_MARKER(); |
517 |
BitstreamSkip(bs, 3); // latter_half_vbv_buffer_size |
buffer_size |= BitstreamGetBits(bs, 3); /* latter_half_vbv_buffer_size */ |
518 |
BitstreamSkip(bs, 11); // first_half_vbv_occupancy |
|
519 |
|
occupancy = BitstreamGetBits(bs, 11) << 15; /* first_half_vbv_occupancy */ |
520 |
READ_MARKER(); |
READ_MARKER(); |
521 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
occupancy |= BitstreamGetBits(bs, 15); /* latter_half_vbv_occupancy */ |
522 |
READ_MARKER(); |
READ_MARKER(); |
523 |
|
|
524 |
|
DPRINTF(XVID_DEBUG_HEADER,"bitrate %d (unit=400 bps)\n", bitrate); |
525 |
|
DPRINTF(XVID_DEBUG_HEADER,"buffer_size %d (unit=16384 bits)\n", buffer_size); |
526 |
|
DPRINTF(XVID_DEBUG_HEADER,"occupancy %d (unit=64 bits)\n", occupancy); |
527 |
} |
} |
528 |
}else{ |
}else{ |
529 |
dec->low_delay = dec->low_delay_default; |
dec->low_delay = dec->low_delay_default; |
530 |
} |
} |
531 |
|
|
532 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); /* video_object_layer_shape */ |
533 |
|
|
534 |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
DPRINTF(XVID_DEBUG_HEADER, "shape %i\n", dec->shape); |
535 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
536 |
{ |
{ |
537 |
DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); |
DPRINTF(XVID_DEBUG_ERROR,"non-rectangular shapes are not supported\n"); |
538 |
} |
} |
539 |
|
|
540 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
541 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); /* video_object_layer_shape_extension */ |
542 |
} |
} |
543 |
|
|
544 |
READ_MARKER(); |
READ_MARKER(); |
545 |
|
|
546 |
// *************************** for decode B-frame time *********************** |
/********************** for decode B-frame time ***********************/ |
547 |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); /* vop_time_increment_resolution */ |
548 |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
DPRINTF(XVID_DEBUG_HEADER,"vop_time_increment_resolution %i\n", dec->time_inc_resolution); |
|
|
|
|
// dec->time_inc_resolution--; |
|
549 |
|
|
550 |
if (dec->time_inc_resolution > 0) { |
if (dec->time_inc_resolution > 0) { |
551 |
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
dec->time_inc_bits = MAX(log2bin(dec->time_inc_resolution-1), 1); |
552 |
} else { |
} else { |
553 |
// dec->time_inc_bits = 0; |
/* for "old" xvid compatibility, set time_inc_bits = 1 */ |
|
// for "old" xvid compatibility, set time_inc_bits = 1 |
|
554 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
555 |
} |
} |
556 |
|
|
557 |
READ_MARKER(); |
READ_MARKER(); |
558 |
|
|
559 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) /* fixed_vop_rate */ |
560 |
{ |
{ |
561 |
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
DPRINTF(XVID_DEBUG_HEADER, "+ fixed_vop_rate\n"); |
562 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); /* fixed_vop_time_increment */ |
563 |
} |
} |
564 |
|
|
565 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
568 |
uint32_t width, height; |
uint32_t width, height; |
569 |
|
|
570 |
READ_MARKER(); |
READ_MARKER(); |
571 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); /* video_object_layer_width */ |
572 |
READ_MARKER(); |
READ_MARKER(); |
573 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); /* video_object_layer_height */ |
574 |
READ_MARKER(); |
READ_MARKER(); |
575 |
|
|
576 |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
DPRINTF(XVID_DEBUG_HEADER, "width %i\n", width); |
577 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(XVID_DEBUG_HEADER, "height %i\n", height); |
578 |
|
|
579 |
if (dec->width != width || dec->height != height) |
if (dec->width != width || dec->height != height) |
580 |
{ |
{ |
581 |
if (dec->fixed_dimensions) |
if (dec->fixed_dimensions) |
582 |
{ |
{ |
583 |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
DPRINTF(XVID_DEBUG_ERROR, "decoder width/height does not match bitstream\n"); |
584 |
return -1; |
return -1; |
585 |
} |
} |
586 |
resize = 1; |
resize = 1; |
590 |
} |
} |
591 |
|
|
592 |
dec->interlacing = BitstreamGetBit(bs); |
dec->interlacing = BitstreamGetBit(bs); |
593 |
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
DPRINTF(XVID_DEBUG_HEADER, "interlacing %i\n", dec->interlacing); |
594 |
|
|
595 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) /* obmc_disable */ |
596 |
{ |
{ |
597 |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
DPRINTF(XVID_DEBUG_ERROR, "obmc_disabled==false not supported\n"); |
598 |
// TODO |
/* TODO */ |
599 |
// fucking divx4.02 has this enabled |
/* fucking divx4.02 has this enabled */ |
600 |
} |
} |
601 |
|
|
602 |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); /* sprite_enable */ |
603 |
|
|
604 |
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
605 |
{ |
{ |
611 |
int sprite_height; |
int sprite_height; |
612 |
int sprite_left_coord; |
int sprite_left_coord; |
613 |
int sprite_top_coord; |
int sprite_top_coord; |
614 |
sprite_width = BitstreamGetBits(bs, 13); // sprite_width |
sprite_width = BitstreamGetBits(bs, 13); /* sprite_width */ |
615 |
READ_MARKER(); |
READ_MARKER(); |
616 |
sprite_height = BitstreamGetBits(bs, 13); // sprite_height |
sprite_height = BitstreamGetBits(bs, 13); /* sprite_height */ |
617 |
READ_MARKER(); |
READ_MARKER(); |
618 |
sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate |
sprite_left_coord = BitstreamGetBits(bs, 13); /* sprite_left_coordinate */ |
619 |
READ_MARKER(); |
READ_MARKER(); |
620 |
sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate |
sprite_top_coord = BitstreamGetBits(bs, 13); /* sprite_top_coordinate */ |
621 |
READ_MARKER(); |
READ_MARKER(); |
622 |
} |
} |
623 |
dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points |
dec->sprite_warping_points = BitstreamGetBits(bs, 6); /* no_of_sprite_warping_points */ |
624 |
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy |
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); /* sprite_warping_accuracy */ |
625 |
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change |
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); /* brightness_change */ |
626 |
if (dec->sprite_enable != SPRITE_GMC) |
if (dec->sprite_enable != SPRITE_GMC) |
627 |
{ |
{ |
628 |
low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable |
low_latency_sprite_enable = BitstreamGetBits(bs, 1); /* low_latency_sprite_enable */ |
629 |
} |
} |
630 |
} |
} |
631 |
|
|
632 |
if (vol_ver_id != 1 && |
if (vol_ver_id != 1 && |
633 |
dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
634 |
BitstreamSkip(bs, 1); // sadct_disable |
BitstreamSkip(bs, 1); /* sadct_disable */ |
635 |
} |
} |
636 |
|
|
637 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) /* not_8_bit */ |
638 |
{ |
{ |
639 |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
DPRINTF(XVID_DEBUG_HEADER, "not_8_bit==true (ignored)\n"); |
640 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); /* quant_precision */ |
641 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); /* bits_per_pixel */ |
642 |
} else { |
} else { |
643 |
dec->quant_bits = 5; |
dec->quant_bits = 5; |
644 |
} |
} |
645 |
|
|
646 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
647 |
BitstreamSkip(bs, 1); // no_gray_quant_update |
BitstreamSkip(bs, 1); /* no_gray_quant_update */ |
648 |
BitstreamSkip(bs, 1); // composition_method |
BitstreamSkip(bs, 1); /* composition_method */ |
649 |
BitstreamSkip(bs, 1); // linear_composition |
BitstreamSkip(bs, 1); /* linear_composition */ |
650 |
} |
} |
651 |
|
|
652 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); /* quant_type */ |
653 |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
DPRINTF(XVID_DEBUG_HEADER, "quant_type %i\n", dec->quant_type); |
654 |
|
|
655 |
if (dec->quant_type) { |
if (dec->quant_type) { |
656 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) /* load_intra_quant_mat */ |
657 |
{ |
{ |
658 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
659 |
|
|
660 |
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
DPRINTF(XVID_DEBUG_HEADER, "load_intra_quant_mat\n"); |
661 |
|
|
662 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
663 |
set_intra_matrix(matrix); |
set_intra_matrix(dec->mpeg_quant_matrices, matrix); |
664 |
} else |
} else |
665 |
set_intra_matrix(get_default_intra_matrix()); |
set_intra_matrix(dec->mpeg_quant_matrices, get_default_intra_matrix()); |
666 |
|
|
667 |
if (BitstreamGetBit(bs)) // load_inter_quant_mat |
if (BitstreamGetBit(bs)) /* load_inter_quant_mat */ |
668 |
{ |
{ |
669 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
670 |
|
|
671 |
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
DPRINTF(XVID_DEBUG_HEADER, "load_inter_quant_mat\n"); |
672 |
|
|
673 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
674 |
set_inter_matrix(matrix); |
set_inter_matrix(dec->mpeg_quant_matrices, matrix); |
675 |
} else |
} else |
676 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(dec->mpeg_quant_matrices, get_default_inter_matrix()); |
677 |
|
|
678 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
679 |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
DPRINTF(XVID_DEBUG_ERROR, "greyscale matrix not supported\n"); |
680 |
return -1; |
return -1; |
681 |
} |
} |
682 |
|
|
684 |
|
|
685 |
|
|
686 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
687 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
dec->quarterpel = BitstreamGetBit(bs); /* quarter_sample */ |
688 |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
DPRINTF(XVID_DEBUG_HEADER,"quarterpel %i\n", dec->quarterpel); |
689 |
} |
} |
690 |
else |
else |
691 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
697 |
read_vol_complexity_estimation_header(bs, dec); |
read_vol_complexity_estimation_header(bs, dec); |
698 |
} |
} |
699 |
|
|
700 |
BitstreamSkip(bs, 1); // resync_marker_disable |
BitstreamSkip(bs, 1); /* resync_marker_disable */ |
701 |
|
|
702 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) /* data_partitioned */ |
703 |
{ |
{ |
704 |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
DPRINTF(XVID_DEBUG_ERROR, "data_partitioned not supported\n"); |
705 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); /* reversible_vlc */ |
706 |
} |
} |
707 |
|
|
708 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
709 |
dec->newpred_enable = BitstreamGetBit(bs); |
dec->newpred_enable = BitstreamGetBit(bs); |
710 |
if (dec->newpred_enable) // newpred_enable |
if (dec->newpred_enable) /* newpred_enable */ |
711 |
{ |
{ |
712 |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
DPRINTF(XVID_DEBUG_HEADER, "+ newpred_enable\n"); |
713 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); /* requested_upstream_message_type */ |
714 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); /* newpred_segment_type */ |
715 |
} |
} |
716 |
dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ |
dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ |
717 |
DPRINTF(DPRINTF_HEADER, "reduced_resolution_enable %i", dec->reduced_resolution_enable); |
DPRINTF(XVID_DEBUG_HEADER, "reduced_resolution_enable %i\n", dec->reduced_resolution_enable); |
718 |
} |
} |
719 |
else |
else |
720 |
{ |
{ |
725 |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
726 |
if (dec->scalability) |
if (dec->scalability) |
727 |
{ |
{ |
728 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(XVID_DEBUG_ERROR, "scalability not supported\n"); |
729 |
BitstreamSkip(bs, 1); /* hierarchy_type */ |
BitstreamSkip(bs, 1); /* hierarchy_type */ |
730 |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
731 |
BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ |
BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ |
744 |
} |
} |
745 |
return -1; |
return -1; |
746 |
} |
} |
747 |
} else // dec->shape == BINARY_ONLY |
} else /* dec->shape == BINARY_ONLY */ |
748 |
{ |
{ |
749 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
750 |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
751 |
if (dec->scalability) |
if (dec->scalability) |
752 |
{ |
{ |
753 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(XVID_DEBUG_ERROR, "scalability not supported\n"); |
754 |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
755 |
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
756 |
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
759 |
return -1; |
return -1; |
760 |
} |
} |
761 |
} |
} |
762 |
BitstreamSkip(bs, 1); // resync_marker_disable |
BitstreamSkip(bs, 1); /* resync_marker_disable */ |
763 |
|
|
764 |
} |
} |
765 |
|
|
767 |
|
|
768 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
769 |
|
|
770 |
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<group_of_vop>\n"); |
771 |
|
|
772 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
773 |
{ |
{ |
778 |
READ_MARKER(); |
READ_MARKER(); |
779 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
780 |
|
|
781 |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
DPRINTF(XVID_DEBUG_HEADER, "time %ih%im%is\n", hours,minutes,seconds); |
782 |
} |
} |
783 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); /* closed_gov */ |
784 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); /* broken_link */ |
785 |
|
|
786 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
787 |
|
|
788 |
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<vop>\n"); |
789 |
|
|
790 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); /* vop_start_code */ |
791 |
|
|
792 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); /* vop_coding_type */ |
793 |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
DPRINTF(XVID_DEBUG_HEADER, "coding_type %i\n", coding_type); |
794 |
|
|
795 |
// *************************** for decode B-frame time *********************** |
/*********************** for decode B-frame time ***********************/ |
796 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) /* time_base */ |
797 |
time_incr++; |
time_incr++; |
798 |
|
|
799 |
READ_MARKER(); |
READ_MARKER(); |
800 |
|
|
801 |
if (dec->time_inc_bits) { |
if (dec->time_inc_bits) { |
802 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
803 |
} |
} |
804 |
|
|
805 |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
DPRINTF(XVID_DEBUG_HEADER, "time_base %i\n", time_incr); |
806 |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
DPRINTF(XVID_DEBUG_HEADER, "time_increment %i\n", time_increment); |
807 |
|
|
808 |
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
DPRINTF(XVID_DEBUG_TIMECODE, "%c %i:%i\n", |
809 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
810 |
time_incr, time_increment); |
time_incr, time_increment); |
811 |
|
|
812 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
813 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
814 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
815 |
dec->time = time_increment; |
dec->time = dec->time_base*dec->time_inc_resolution + time_increment; |
816 |
|
dec->time_pp = (int32_t)(dec->time - dec->last_non_b_time); |
|
/* dec->time_base * dec->time_inc_resolution + |
|
|
time_increment; |
|
|
*/ dec->time_pp = (uint32_t) |
|
|
(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
|
817 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
818 |
} else { |
} else { |
819 |
dec->time = time_increment; |
dec->time = (dec->last_time_base + time_incr)*dec->time_inc_resolution + time_increment; |
820 |
/* |
dec->time_bp = dec->time_pp - (int32_t)(dec->last_non_b_time - dec->time); |
|
(dec->last_time_base + |
|
|
time_incr) * dec->time_inc_resolution + time_increment; |
|
|
*/ |
|
|
dec->time_bp = (uint32_t) |
|
|
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
|
821 |
} |
} |
822 |
DPRINTF(DPRINTF_HEADER,"time_pp=%i", dec->time_pp); |
DPRINTF(XVID_DEBUG_HEADER,"time_pp=%i\n", dec->time_pp); |
823 |
DPRINTF(DPRINTF_HEADER,"time_bp=%i", dec->time_bp); |
DPRINTF(XVID_DEBUG_HEADER,"time_bp=%i\n", dec->time_bp); |
824 |
|
|
825 |
READ_MARKER(); |
READ_MARKER(); |
826 |
|
|
827 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) /* vop_coded */ |
828 |
{ |
{ |
829 |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
DPRINTF(XVID_DEBUG_HEADER, "vop_coded==false\n"); |
830 |
return N_VOP; |
return N_VOP; |
831 |
} |
} |
832 |
|
|
836 |
int vop_id_for_prediction; |
int vop_id_for_prediction; |
837 |
|
|
838 |
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
839 |
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
DPRINTF(XVID_DEBUG_HEADER, "vop_id %i\n", vop_id); |
840 |
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
841 |
{ |
{ |
842 |
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
843 |
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
DPRINTF(XVID_DEBUG_HEADER, "vop_id_for_prediction %i\n", vop_id_for_prediction); |
844 |
} |
} |
845 |
READ_MARKER(); |
READ_MARKER(); |
846 |
} |
} |
847 |
|
|
848 |
|
|
849 |
|
|
850 |
// fix a little bug by MinChen <chenm002@163.com> |
/* fix a little bug by MinChen <chenm002@163.com> */ |
851 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
852 |
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
853 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); /* rounding_type */ |
854 |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
DPRINTF(XVID_DEBUG_HEADER, "rounding %i\n", *rounding); |
855 |
} |
} |
856 |
|
|
857 |
if (dec->reduced_resolution_enable && |
if (dec->reduced_resolution_enable && |
858 |
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
859 |
(coding_type == P_VOP || coding_type == I_VOP)) { |
(coding_type == P_VOP || coding_type == I_VOP)) { |
860 |
|
|
861 |
*reduced_resolution = BitstreamGetBit(bs); |
if (BitstreamGetBit(bs)); |
862 |
DPRINTF(DPRINTF_HEADER, "reduced_resolution %i", *reduced_resolution); |
DPRINTF(XVID_DEBUG_ERROR, "RRV not supported (anymore)\n"); |
|
} |
|
|
else |
|
|
{ |
|
|
*reduced_resolution = 0; |
|
863 |
} |
} |
864 |
|
|
865 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
877 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
878 |
READ_MARKER(); |
READ_MARKER(); |
879 |
|
|
880 |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
DPRINTF(XVID_DEBUG_HEADER, "width %i\n", width); |
881 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(XVID_DEBUG_HEADER, "height %i\n", height); |
882 |
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
DPRINTF(XVID_DEBUG_HEADER, "horiz_mc_ref %i\n", horiz_mc_ref); |
883 |
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
DPRINTF(XVID_DEBUG_HEADER, "vert_mc_ref %i\n", vert_mc_ref); |
884 |
} |
} |
885 |
|
|
886 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
887 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) /* vop_constant_alpha */ |
888 |
{ |
{ |
889 |
BitstreamSkip(bs, 8); // vop_constant_alpha_value |
BitstreamSkip(bs, 8); /* vop_constant_alpha_value */ |
890 |
} |
} |
891 |
} |
} |
892 |
|
|
897 |
read_vop_complexity_estimation_header(bs, dec, coding_type); |
read_vop_complexity_estimation_header(bs, dec, coding_type); |
898 |
} |
} |
899 |
|
|
900 |
// intra_dc_vlc_threshold |
/* intra_dc_vlc_threshold */ |
901 |
*intra_dc_threshold = |
*intra_dc_threshold = |
902 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
903 |
|
|
906 |
|
|
907 |
if (dec->interlacing) { |
if (dec->interlacing) { |
908 |
dec->top_field_first = BitstreamGetBit(bs); |
dec->top_field_first = BitstreamGetBit(bs); |
909 |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
DPRINTF(XVID_DEBUG_HEADER, "interlace top_field_first %i\n", dec->top_field_first); |
910 |
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
911 |
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
DPRINTF(XVID_DEBUG_HEADER, "interlace alternate_vertical_scan %i\n", dec->alternate_vertical_scan); |
912 |
|
|
913 |
} |
} |
914 |
} |
} |
939 |
} |
} |
940 |
READ_MARKER(); |
READ_MARKER(); |
941 |
|
|
942 |
gmc_mv[i].x = x; |
gmc_warp->duv[i].x = x; |
943 |
gmc_mv[i].y = y; |
gmc_warp->duv[i].y = y; |
944 |
|
|
945 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
DPRINTF(XVID_DEBUG_HEADER,"sprite_warping_point[%i] xy=(%i,%i)\n", i, x, y); |
946 |
} |
} |
947 |
|
|
948 |
if (dec->sprite_brightness_change) |
if (dec->sprite_brightness_change) |
949 |
{ |
{ |
950 |
// XXX: brightness_change_factor() |
/* XXX: brightness_change_factor() */ |
951 |
} |
} |
952 |
if (dec->sprite_enable == SPRITE_STATIC) |
if (dec->sprite_enable == SPRITE_STATIC) |
953 |
{ |
{ |
954 |
// XXX: todo |
/* XXX: todo */ |
955 |
} |
} |
956 |
|
|
957 |
} |
} |
958 |
|
|
959 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) /* vop_quant */ |
960 |
*quant = 1; |
*quant = 1; |
961 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(XVID_DEBUG_HEADER, "quant %i\n", *quant); |
962 |
|
|
963 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
964 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); /* fcode_forward */ |
965 |
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
DPRINTF(XVID_DEBUG_HEADER, "fcode_forward %i\n", *fcode_forward); |
966 |
} |
} |
967 |
|
|
968 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
969 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); /* fcode_backward */ |
970 |
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
DPRINTF(XVID_DEBUG_HEADER, "fcode_backward %i\n", *fcode_backward); |
971 |
} |
} |
972 |
if (!dec->scalability) { |
if (!dec->scalability) { |
973 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
974 |
(coding_type != I_VOP)) { |
(coding_type != I_VOP)) { |
975 |
BitstreamSkip(bs, 1); // vop_shape_coding_type |
BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
976 |
} |
} |
977 |
} |
} |
978 |
return coding_type; |
return coding_type; |
982 |
int i, version, build; |
int i, version, build; |
983 |
char packed; |
char packed; |
984 |
|
|
985 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); /* user_data_start_code */ |
986 |
|
|
987 |
|
memset(tmp, 0, 256); |
988 |
tmp[0] = BitstreamShowBits(bs, 8); |
tmp[0] = BitstreamShowBits(bs, 8); |
989 |
|
|
990 |
for(i = 1; i < 256; i++){ |
for(i = 1; i < 256; i++){ |
996 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
997 |
} |
} |
998 |
|
|
999 |
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
DPRINTF(XVID_DEBUG_STARTCODE, "<user_data>: %s\n", tmp); |
1000 |
|
|
1001 |
|
/* read xvid bitstream version */ |
1002 |
|
if(strncmp(tmp, "XviD", 4) == 0) { |
1003 |
|
if (tmp[strlen(tmp)-1] == 'C') { |
1004 |
|
sscanf(tmp, "XviD%dC", &dec->bs_version); |
1005 |
|
dec->cartoon_mode = 1; |
1006 |
|
} |
1007 |
|
else |
1008 |
|
sscanf(tmp, "XviD%d", &dec->bs_version); |
1009 |
|
|
1010 |
|
DPRINTF(XVID_DEBUG_HEADER, "xvid bitstream version=%i\n", dec->bs_version); |
1011 |
|
} |
1012 |
|
|
1013 |
/* divx detection */ |
/* divx detection */ |
1014 |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1018 |
if (i >= 2) |
if (i >= 2) |
1019 |
{ |
{ |
1020 |
dec->packed_mode = (i == 3 && packed == 'p'); |
dec->packed_mode = (i == 3 && packed == 'p'); |
1021 |
DPRINTF(DPRINTF_HEADER, "divx version=%i, build=%i packed=%i", |
DPRINTF(XVID_DEBUG_HEADER, "divx version=%i, build=%i packed=%i\n", |
1022 |
version, build, dec->packed_mode); |
version, build, dec->packed_mode); |
1023 |
} |
} |
1024 |
|
|
1025 |
} else // start_code == ? |
} else /* start_code == ? */ |
1026 |
{ |
{ |
1027 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1028 |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
DPRINTF(XVID_DEBUG_STARTCODE, "<unknown: %x>\n", BitstreamShowBits(bs, 32)); |
1029 |
} |
} |
1030 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
1031 |
} |
} |
1032 |
} |
} |
|
while ((BitstreamPos(bs) >> 3) < bs->length); |
|
1033 |
|
|
1034 |
//DPRINTF("*** WARNING: no vop_start_code found"); |
#if 0 |
1035 |
|
DPRINTF("*** WARNING: no vop_start_code found"); |
1036 |
|
#endif |
1037 |
return -1; /* ignore it */ |
return -1; /* ignore it */ |
1038 |
} |
} |
1039 |
|
|
1042 |
|
|
1043 |
static void |
static void |
1044 |
bs_put_matrix(Bitstream * bs, |
bs_put_matrix(Bitstream * bs, |
1045 |
const int16_t * matrix) |
const uint16_t * matrix) |
1046 |
{ |
{ |
1047 |
int i, j; |
int i, j; |
1048 |
const int last = matrix[scan_tables[0][63]]; |
const int last = matrix[scan_tables[0][63]]; |
1070 |
static const unsigned int vo_id = 0; |
static const unsigned int vo_id = 0; |
1071 |
static const unsigned int vol_id = 0; |
static const unsigned int vol_id = 0; |
1072 |
int vol_ver_id=1; |
int vol_ver_id=1; |
1073 |
int profile = 0x03; /* simple profile/level 3 */ |
int vol_type_ind = VIDOBJLAY_TYPE_SIMPLE; |
1074 |
|
int vol_profile = pParam->profile; |
1075 |
|
|
1076 |
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
if ( (pParam->vol_flags & XVID_VOL_QUARTERPEL) || |
1077 |
(pParam->global & XVID_GLOBAL_REDUCED)) |
(pParam->vol_flags & XVID_VOL_GMC)) |
1078 |
vol_ver_id = 2; |
vol_ver_id = 2; |
1079 |
|
|
1080 |
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
if ((pParam->vol_flags & (XVID_VOL_MPEGQUANT|XVID_VOL_QUARTERPEL|XVID_VOL_GMC|XVID_VOL_INTERLACING)) || |
1081 |
profile = 0x93; /* advanced realtime simple profile/level 3 */ |
pParam->max_bframes>0) { |
1082 |
|
vol_type_ind = VIDOBJLAY_TYPE_ASP; |
1083 |
if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) |
} |
|
profile = 0xf3; /* advanced simple profile/level 2 */ |
|
1084 |
|
|
1085 |
// visual_object_sequence_start_code |
/* visual_object_sequence_start_code */ |
1086 |
|
#if 0 |
1087 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1088 |
|
#endif |
1089 |
|
|
1090 |
|
/* |
1091 |
|
* no padding here, anymore. You have to make sure that you are |
1092 |
|
* byte aligned, and that always 1-8 padding bits have been written |
1093 |
|
*/ |
1094 |
|
|
1095 |
|
if (!vol_profile) { |
1096 |
|
/* Profile was not set by client app, use the more permissive profile |
1097 |
|
* compatible with the vol_type_id */ |
1098 |
|
switch(vol_type_ind) { |
1099 |
|
case VIDOBJLAY_TYPE_ASP: |
1100 |
|
vol_profile = 0xf5; /* ASP level 5 */ |
1101 |
|
break; |
1102 |
|
case VIDOBJLAY_TYPE_ART_SIMPLE: |
1103 |
|
vol_profile = 0x94; /* ARTS level 4 */ |
1104 |
|
break; |
1105 |
|
default: |
1106 |
|
vol_profile = 0x03; /* Simple level 3 */ |
1107 |
|
break; |
1108 |
|
} |
1109 |
|
} |
1110 |
|
|
1111 |
|
/* Write the VOS header */ |
1112 |
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
1113 |
BitstreamPutBits(bs, profile, 8); |
BitstreamPutBits(bs, vol_profile, 8); /* profile_and_level_indication */ |
1114 |
|
|
1115 |
|
|
1116 |
// visual_object_start_code |
/* visual_object_start_code */ |
1117 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1118 |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1119 |
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
BitstreamPutBits(bs, 0, 1); /* is_visual_object_identifier */ |
|
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
|
1120 |
|
|
1121 |
// video object_start_code & vo_id |
/* Video type */ |
1122 |
BitstreamPad(bs); |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); /* visual_object_type */ |
1123 |
|
BitstreamPutBit(bs, 0); /* video_signal_type */ |
1124 |
|
|
1125 |
|
/* video object_start_code & vo_id */ |
1126 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1127 |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1128 |
|
|
1129 |
// video_object_layer_start_code & vol_id |
/* video_object_layer_start_code & vol_id */ |
1130 |
|
BitstreamPad(bs); |
1131 |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
1132 |
|
|
1133 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
1134 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, vol_type_ind, 8); /* video_object_type_indication */ |
1135 |
|
|
1136 |
if (vol_ver_id == 1) |
if (vol_ver_id == 1) { |
1137 |
{ |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
1138 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
} else { |
1139 |
} |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
1140 |
else |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
1141 |
{ |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==highest, 7==lowest) */ |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
|
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
|
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
|
1142 |
} |
} |
1143 |
|
|
1144 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
/* Aspect ratio */ |
1145 |
|
BitstreamPutBits(bs, pParam->par, 4); /* aspect_ratio_info (1=1:1) */ |
1146 |
|
if(pParam->par == XVID_PAR_EXT) { |
1147 |
|
BitstreamPutBits(bs, pParam->par_width, 8); |
1148 |
|
BitstreamPutBits(bs, pParam->par_height, 8); |
1149 |
|
} |
1150 |
|
|
1151 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
1152 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
1153 |
|
|
1154 |
if (pParam->max_bframes > 0) { |
if (pParam->max_bframes > 0) { |
1155 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); /* low_delay */ |
1156 |
} else |
} else |
1157 |
{ |
{ |
1158 |
BitstreamPutBit(bs, 1); // low_delay |
BitstreamPutBit(bs, 1); /* low_delay */ |
1159 |
} |
} |
1160 |
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
BitstreamPutBit(bs, 0); /* vbv_parameters (0=not given) */ |
1161 |
|
|
1162 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); /* video_object_layer_shape (0=rectangular) */ |
1163 |
|
|
1164 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1165 |
|
|
1166 |
/* time_inc_resolution; ignored by current decore versions |
/* |
1167 |
eg. 2fps res=2 inc=1 |
* time_inc_resolution; ignored by current decore versions |
1168 |
25fps res=25 inc=1 |
* eg. 2fps res=2 inc=1 |
1169 |
29.97fps res=30000 inc=1001 |
* 25fps res=25 inc=1 |
1170 |
|
* 29.97fps res=30000 inc=1001 |
1171 |
*/ |
*/ |
1172 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
1173 |
|
|
1174 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1175 |
|
|
1176 |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
if (pParam->fincr>0) { |
1177 |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
1178 |
|
BitstreamPutBits(bs, pParam->fincr, MAX(log2bin(pParam->fbase-1),1)); /* fixed_vop_time_increment */ |
1179 |
|
}else{ |
1180 |
|
BitstreamPutBit(bs, 0); /* fixed_vop_rate = 0 */ |
1181 |
|
} |
1182 |
|
|
1183 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1184 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); /* width */ |
1185 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1186 |
BitstreamPutBits(bs, pParam->height, 13); // height |
BitstreamPutBits(bs, pParam->height, 13); /* height */ |
1187 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1188 |
|
|
1189 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, pParam->vol_flags & XVID_VOL_INTERLACING); /* interlace */ |
1190 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); /* obmc_disable (overlapped block motion compensation) */ |
1191 |
|
|
1192 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) |
1193 |
{ if (frame->global_flags & XVID_GMC) |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
1194 |
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
1195 |
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
BitstreamPutBits(bs, 3, 6); /* no_of_sprite_warping_points */ |
1196 |
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 */ |
1197 |
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
1198 |
|
|
1199 |
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
/* |
1200 |
for DivX5 compatability */ |
* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
1201 |
|
* for DivX5 compatability |
1202 |
|
*/ |
1203 |
|
|
1204 |
} else |
} else |
1205 |
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
BitstreamPutBits(bs, 0, 2); /* sprite_enable==off */ |
1206 |
} |
} |
1207 |
else |
else |
1208 |
BitstreamPutBit(bs, 0); // sprite_enable==off |
BitstreamPutBit(bs, 0); /* sprite_enable==off */ |
1209 |
|
|
1210 |
BitstreamPutBit(bs, 0); // not_8_bit |
BitstreamPutBit(bs, 0); /* not_8_bit */ |
1211 |
|
|
1212 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
/* quant_type 0=h.263 1=mpeg4(quantizer tables) */ |
1213 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->vol_flags & XVID_VOL_MPEGQUANT); |
1214 |
|
|
1215 |
if (pParam->m_quant_type) { |
if ((pParam->vol_flags & XVID_VOL_MPEGQUANT)) { |
1216 |
BitstreamPutBit(bs, get_intra_matrix_status()); // load_intra_quant_mat |
BitstreamPutBit(bs, is_custom_intra_matrix(pParam->mpeg_quant_matrices)); /* load_intra_quant_mat */ |
1217 |
if (get_intra_matrix_status()) { |
if(is_custom_intra_matrix(pParam->mpeg_quant_matrices)) |
1218 |
bs_put_matrix(bs, get_intra_matrix()); |
bs_put_matrix(bs, get_intra_matrix(pParam->mpeg_quant_matrices)); |
|
} |
|
1219 |
|
|
1220 |
BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat |
BitstreamPutBit(bs, is_custom_inter_matrix(pParam->mpeg_quant_matrices)); /* load_inter_quant_mat */ |
1221 |
if (get_inter_matrix_status()) { |
if(is_custom_inter_matrix(pParam->mpeg_quant_matrices)) |
1222 |
bs_put_matrix(bs, get_inter_matrix()); |
bs_put_matrix(bs, get_inter_matrix(pParam->mpeg_quant_matrices)); |
1223 |
} |
} |
1224 |
|
|
1225 |
|
if (vol_ver_id != 1) { |
1226 |
|
if ((pParam->vol_flags & XVID_VOL_QUARTERPEL)) |
1227 |
|
BitstreamPutBit(bs, 1); /* quarterpel */ |
1228 |
|
else |
1229 |
|
BitstreamPutBit(bs, 0); /* no quarterpel */ |
1230 |
} |
} |
1231 |
|
|
1232 |
|
BitstreamPutBit(bs, 1); /* complexity_estimation_disable */ |
1233 |
|
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
1234 |
|
BitstreamPutBit(bs, 0); /* data_partitioned */ |
1235 |
|
|
1236 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
1237 |
if (pParam->m_quarterpel) |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
1238 |
BitstreamPutBit(bs, 1); // quarterpel |
BitstreamPutBit(bs, 0); /* reduced_resolution_vop_enabled */ |
|
else |
|
|
BitstreamPutBit(bs, 0); // no quarterpel |
|
1239 |
} |
} |
1240 |
|
|
1241 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 0); /* scalability */ |
|
BitstreamPutBit(bs, 1); // resync_marker_disable |
|
|
BitstreamPutBit(bs, 0); // data_partitioned |
|
1242 |
|
|
1243 |
if (vol_ver_id != 1) |
BitstreamPadAlways(bs); /* next_start_code(); */ |
|
{ |
|
|
BitstreamPutBit(bs, 0); // newpred_enable |
|
1244 |
|
|
1245 |
BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); |
/* divx5 userdata string */ |
1246 |
/* reduced_resolution_vop_enabled */ |
#define DIVX5_ID ((char *)"DivX503b1393") |
1247 |
|
if ((pParam->global_flags & XVID_GLOBAL_DIVX5_USERDATA)) { |
1248 |
|
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
1249 |
|
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) |
1250 |
|
BitstreamPutBits(bs, 'p', 8); |
1251 |
} |
} |
1252 |
|
|
1253 |
BitstreamPutBit(bs, 0); // scalability |
/* xvid id */ |
1254 |
|
{ |
1255 |
|
const char xvid_user_format[] = "XviD%04d%c"; |
1256 |
|
char xvid_user_data[100]; |
1257 |
|
sprintf(xvid_user_data, |
1258 |
|
xvid_user_format, |
1259 |
|
XVID_BS_VERSION, |
1260 |
|
(frame->vop_flags & XVID_VOP_CARTOON)?'C':'\0'); |
1261 |
|
BitstreamWriteUserData(bs, xvid_user_data, strlen(xvid_user_data)); |
1262 |
|
} |
1263 |
} |
} |
1264 |
|
|
1265 |
|
|
1271 |
Bitstream * const bs, |
Bitstream * const bs, |
1272 |
const MBParam * pParam, |
const MBParam * pParam, |
1273 |
const FRAMEINFO * const frame, |
const FRAMEINFO * const frame, |
1274 |
int vop_coded) |
int vop_coded, |
1275 |
|
unsigned int quant) |
1276 |
{ |
{ |
1277 |
uint32_t i; |
uint32_t i; |
1278 |
|
|
1279 |
|
#if 0 |
1280 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1281 |
|
#endif |
1282 |
|
|
1283 |
|
/* |
1284 |
|
* no padding here, anymore. You have to make sure that you are |
1285 |
|
* byte aligned, and that always 1-8 padding bits have been written |
1286 |
|
*/ |
1287 |
|
|
1288 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1289 |
|
|
1290 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1291 |
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
#if 0 |
1292 |
|
DPRINTF(XVID_DEBUG_HEADER, "coding_type = %i\n", frame->coding_type); |
1293 |
|
#endif |
1294 |
|
|
1295 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
1296 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
1299 |
|
|
1300 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1301 |
|
|
1302 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
1303 |
|
BitstreamPutBits(bs, frame->ticks, MAX(log2bin(pParam->fbase-1), 1)); |
1304 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
#if 0 |
1305 |
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
DPRINTF("[%i:%i] %c", |
1306 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->seconds, frame->ticks, |
1307 |
P_VOP ? 'P' : 'B');*/ |
frame->coding_type == I_VOP ? 'I' : |
1308 |
|
frame->coding_type == P_VOP ? 'P' : |
1309 |
|
frame->coding_type == S_VOP ? 'S' : 'B'); |
1310 |
|
#endif |
1311 |
|
|
1312 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1313 |
|
|
1314 |
if (!vop_coded) { |
if (!vop_coded) { |
1315 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
1316 |
|
#if 0 |
1317 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1318 |
|
#endif |
1319 |
|
/* NB: It's up to the function caller to write the next_start_code(). |
1320 |
|
* At the moment encoder.c respects that requisite because a VOP |
1321 |
|
* always ends with a next_start_code either if it's coded or not |
1322 |
|
* and encoder.c terminates a frame with a next_start_code in whatever |
1323 |
|
* case */ |
1324 |
return; |
return; |
1325 |
} |
} |
1326 |
|
|
1327 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); /* vop_coded */ |
1328 |
|
|
1329 |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1330 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1331 |
|
|
1332 |
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
BitstreamPutBits(bs, 0, 3); /* intra_dc_vlc_threshold */ |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); |
|
1333 |
|
|
1334 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
if ((frame->vol_flags & XVID_VOL_INTERLACING)) { |
1335 |
|
BitstreamPutBit(bs, (frame->vop_flags & XVID_VOP_TOPFIELDFIRST)); |
1336 |
if (frame->global_flags & XVID_INTERLACING) { |
BitstreamPutBit(bs, (frame->vop_flags & XVID_VOP_ALTERNATESCAN)); |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
|
|
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
|
1337 |
} |
} |
1338 |
|
|
1339 |
if (frame->coding_type == S_VOP) { |
if (frame->coding_type == S_VOP) { |
1340 |
if (1) { // no_of_sprite_warping_points>=1 |
if (1) { /* no_of_sprite_warping_points>=1 (we use 2!) */ |
1341 |
if (pParam->m_quarterpel) |
int k; |
1342 |
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
for (k=0;k<3;k++) |
1343 |
else |
{ |
1344 |
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); /* du[k] */ |
1345 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1346 |
|
|
1347 |
if (pParam->m_quarterpel) |
bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); /* dv[k] */ |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
|
|
else |
|
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
|
1348 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1349 |
|
|
1350 |
|
if ((frame->vol_flags & XVID_VOL_QUARTERPEL)) |
|
if (pParam->m_quarterpel) |
|
1351 |
{ |
{ |
1352 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
DPRINTF(XVID_DEBUG_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*\n", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); |
1353 |
} |
} |
1354 |
else |
else |
1355 |
{ |
{ |
1356 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
DPRINTF(XVID_DEBUG_HEADER,"sprite_warping_point[%i] xy=(%i,%i)\n", k, frame->warp.duv[k].x, frame->warp.duv[k].y); |
1357 |
} |
} |
|
|
|
1358 |
} |
} |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
|
|
|
|
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
|
|
bs_put_spritetrajectory(bs, 0 ); |
|
|
WRITE_MARKER(); |
|
|
bs_put_spritetrajectory(bs, 0 ); |
|
|
WRITE_MARKER(); |
|
1359 |
} |
} |
|
// no support for brightness_change! |
|
1360 |
} |
} |
1361 |
|
|
1362 |
|
|
1363 |
DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); |
#if 0 |
1364 |
|
DPRINTF(XVID_DEBUG_HEADER, "quant = %i\n", quant); |
1365 |
|
#endif |
1366 |
|
|
1367 |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
BitstreamPutBits(bs, quant, 5); /* quantizer */ |
1368 |
|
|
1369 |
if (frame->coding_type != I_VOP) |
if (frame->coding_type != I_VOP) |
1370 |
BitstreamPutBits(bs, frame->fcode, 3); // forward_fixed_code |
BitstreamPutBits(bs, frame->fcode, 3); /* forward_fixed_code */ |
1371 |
|
|
1372 |
if (frame->coding_type == B_VOP) |
if (frame->coding_type == B_VOP) |
1373 |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
BitstreamPutBits(bs, frame->bcode, 3); /* backward_fixed_code */ |
1374 |
|
|
1375 |
} |
} |
1376 |
|
|
1377 |
void |
void |
1378 |
BitstreamWriteUserData(Bitstream * const bs, |
BitstreamWriteUserData(Bitstream * const bs, |
1379 |
uint8_t * data, |
const char *data, |
1380 |
const int length) |
const unsigned int length) |
1381 |
{ |
{ |
1382 |
int i; |
int i; |
1383 |
|
|
1389 |
} |
} |
1390 |
|
|
1391 |
} |
} |
1392 |
|
|
1393 |
|
/* |
1394 |
|
* Group of VOP |
1395 |
|
*/ |
1396 |
|
void |
1397 |
|
BitstreamWriteGroupOfVopHeader(Bitstream * const bs, |
1398 |
|
const MBParam * pParam, |
1399 |
|
uint32_t is_closed_gov) |
1400 |
|
{ |
1401 |
|
int64_t time = (pParam->m_stamp + (pParam->fbase/2)) / pParam->fbase; |
1402 |
|
int hours, minutes, seconds; |
1403 |
|
|
1404 |
|
/* compute time_code */ |
1405 |
|
seconds = time % 60; time /= 60; |
1406 |
|
minutes = time % 60; time /= 60; |
1407 |
|
hours = time % 24; /* don't overflow */ |
1408 |
|
|
1409 |
|
BitstreamPutBits(bs, GRPOFVOP_START_CODE, 32); |
1410 |
|
BitstreamPutBits(bs, hours, 5); |
1411 |
|
BitstreamPutBits(bs, minutes, 6); |
1412 |
|
BitstreamPutBit(bs, 1); |
1413 |
|
BitstreamPutBits(bs, seconds, 6); |
1414 |
|
BitstreamPutBits(bs, is_closed_gov, 1); |
1415 |
|
BitstreamPutBits(bs, 0, 1); /* broken_link */ |
1416 |
|
} |
1417 |
|
|
1418 |
|
/* |
1419 |
|
* End of Sequence |
1420 |
|
*/ |
1421 |
|
void |
1422 |
|
BitstreamWriteEndOfSequence(Bitstream * const bs) |
1423 |
|
{ |
1424 |
|
BitstreamPadAlways(bs); |
1425 |
|
BitstreamPutBits(bs, VISOBJSEQ_STOP_CODE, 32); |
1426 |
|
} |
1427 |
|
|
1428 |
|
/* |
1429 |
|
* Video Packet (resync marker) |
1430 |
|
*/ |
1431 |
|
|
1432 |
|
void write_video_packet_header(Bitstream * const bs, |
1433 |
|
const MBParam * pParam, |
1434 |
|
const FRAMEINFO * const frame, |
1435 |
|
int mbnum) |
1436 |
|
{ |
1437 |
|
const int mbnum_bits = log2bin(pParam->mb_width * pParam->mb_height - 1); |
1438 |
|
uint32_t nbitsresyncmarker; |
1439 |
|
|
1440 |
|
if (frame->coding_type == I_VOP) |
1441 |
|
nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER; /* 16 zeros followed by a 1. */ |
1442 |
|
else if (frame->coding_type == P_VOP) |
1443 |
|
nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER-1 + frame->fcode; |
1444 |
|
else /* B_VOP */ |
1445 |
|
nbitsresyncmarker = MAX(NUMBITS_VP_RESYNC_MARKER, NUMBITS_VP_RESYNC_MARKER-1 + MAX(frame->fcode, frame->bcode)); |
1446 |
|
|
1447 |
|
BitstreamPadAlways(bs); |
1448 |
|
BitstreamPutBits(bs, RESYNC_MARKER, nbitsresyncmarker); |
1449 |
|
BitstreamPutBits(bs, mbnum, mbnum_bits); |
1450 |
|
BitstreamPutBits(bs, frame->quant, 5); |
1451 |
|
BitstreamPutBit(bs, 0); /* hec */ |
1452 |
|
} |