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/***************************************************************************** |
/****************************************************************************** |
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* |
* * |
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* XVID MPEG-4 VIDEO CODEC |
* This file is part of XviD, a free MPEG-4 video encoder/decoder * |
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* - Bitstream reader/writer functions - |
* * |
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* |
* XviD is an implementation of a part of one or more MPEG-4 Video tools * |
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* Copyright (C) 2001-2002 - Peter Ross <pross@xvid.org> |
* as specified in ISO/IEC 14496-2 standard. Those intending to use this * |
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* |
* software module in hardware or software products are advised that its * |
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* This file is part of XviD, a free MPEG-4 video encoder/decoder |
* 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 * |
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* XviD is free software; you can redistribute it and/or modify it |
* software module and his/her company, and subsequent editors and their * |
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* under the terms of the GNU General Public License as published by |
* companies, will have no liability for use of this software or * |
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* the Free Software Foundation; either version 2 of the License, or |
* modifications or derivatives thereof. * |
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* (at your option) any later version. |
* * |
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* |
* XviD is free software; you can redistribute it and/or modify it * |
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* This program is distributed in the hope that it will be useful, |
* under the terms of the GNU General Public License as published by * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* the Free Software Foundation; either version 2 of the License, or * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
* (at your option) any later version. * |
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* GNU General Public License for more details. |
* * |
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* |
* XviD is distributed in the hope that it will be useful, but * |
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* You should have received a copy of the GNU General Public License |
* WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* along with this program; if not, write to the Free Software |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* GNU General Public License for more details. * |
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* |
* * |
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* Under section 8 of the GNU General Public License, the copyright |
* You should have received a copy of the GNU General Public License * |
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* holders of XVID explicitly forbid distribution in the following |
* along with this program; if not, write to the Free Software * |
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* countries: |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
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* |
* * |
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* - Japan |
******************************************************************************/ |
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* - United States of America |
|
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* |
/****************************************************************************** |
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* Linking XviD statically or dynamically with other modules is making a |
* * |
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* combined work based on XviD. Thus, the terms and conditions of the |
* bitstream.c * |
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* GNU General Public License cover the whole combination. |
* * |
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* |
* Copyright (C) 2001 - Peter Ross <pross@cs.rmit.edu.au> * |
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* As a special exception, the copyright holders of XviD give you |
* * |
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* permission to link XviD with independent modules that communicate with |
* For more information visit the XviD homepage: http://www.xvid.org * |
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* XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
* * |
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* license terms of these independent modules, and to copy and distribute |
******************************************************************************/ |
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* the resulting combined work under terms of your choice, provided that |
|
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* every copy of the combined work is accompanied by a complete copy of |
/****************************************************************************** |
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* the source code of XviD (the version of XviD used to produce the |
* * |
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* combined work), being distributed under the terms of the GNU General |
* Revision history: * |
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* Public License plus this exception. An independent module is a module |
* * |
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* which is not derived from or based on XviD. |
* 05.01.2003 GMC support - gruel * |
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* |
* 04.10.2002 qpel support - Isibaar * |
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* Note that people who make modified versions of XviD are not obligated |
* 11.07.2002 add VOP width & height return to dec when dec->width * |
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* to grant this special exception for their modified versions; it is |
* or dec->height is 0 (for use in examples/ex1.c) * |
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* their choice whether to do so. The GNU General Public License gives |
* MinChen <chenm001@163.com> * |
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* permission to release a modified version without this exception; this |
* 22.05.2002 bs_put_matrix fix * |
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* exception also makes it possible to release a modified version which |
* 20.05.2002 added BitstreamWriteUserData * |
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* carries forward this exception. |
* 19.06.2002 Fix a little bug in use custom quant matrix * |
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* |
* MinChen <chenm001@163.com> * |
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* $Id$ |
* 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> |
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#include <stdio.h> |
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#include "bitstream.h" |
#include "bitstream.h" |
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#include "zigzag.h" |
#include "zigzag.h" |
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#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
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#include "mbcoding.h" |
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/***************************************************************************** |
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* Functions |
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****************************************************************************/ |
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static uint32_t __inline |
static uint32_t __inline |
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log2bin(uint32_t value) |
log2bin(uint32_t value) |
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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 */ |
i--; // fix little bug at coeff not full |
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|
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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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131 |
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/* for PVOP addbits == fcode - 1 */ |
// for PVOP addbits == fcode - 1 |
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/* for BVOP addbits == max(fcode,bcode) - 1 */ |
// for BVOP addbits == max(fcode,bcode) - 1 |
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/* returns mbpos */ |
// returns mbpos |
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int |
int |
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read_video_packet_header(Bitstream *bs, const int addbits, int * quant) |
read_video_packet_header(Bitstream *bs, |
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DECODER * dec, |
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const int addbits, |
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int * quant, |
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int * fcode_forward, |
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int * fcode_backward, |
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int * intra_dc_threshold) |
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{ |
{ |
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int nbits; |
int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; |
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int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); |
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int mbnum; |
int mbnum; |
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int hec; |
int hec = 0; |
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nbits = NUMBITS_VP_RESYNC_MARKER + addbits; |
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BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
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BitstreamSkip(bs, nbits); |
BitstreamSkip(bs, startcode_bits); |
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DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
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/* if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { */ |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
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/* hec */ |
{ |
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/* vop_width */ |
hec = BitstreamGetBit(bs); /* header_extension_code */ |
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/* marker_bit */ |
if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) |
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/* vop_height */ |
{ |
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/* marker_bit */ |
BitstreamSkip(bs, 13); /* vop_width */ |
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READ_MARKER(); |
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/*} */ |
BitstreamSkip(bs, 13); /* vop_height */ |
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READ_MARKER(); |
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BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ |
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READ_MARKER(); |
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BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ |
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READ_MARKER(); |
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} |
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} |
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mbnum = BitstreamGetBits(bs, 9); |
mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
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DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
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/* if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) */ |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
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*quant = BitstreamGetBits(bs, 5); |
{ |
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*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
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} |
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180 |
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if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
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/* if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) */ |
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hec = BitstreamGetBit(bs); |
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DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
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/* if (hec) */ |
if (hec) |
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/* .. decoder hec-header ... */ |
{ |
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int time_base; |
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int time_increment; |
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int coding_type; |
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for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ |
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READ_MARKER(); |
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if (dec->time_inc_bits) |
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time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
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READ_MARKER(); |
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DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
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coding_type = BitstreamGetBits(bs, 2); |
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DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
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{ |
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BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
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if (coding_type != I_VOP) |
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BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
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} |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
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{ |
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*intra_dc_threshold = intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
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if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
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dec->sprite_warping_points > 0) |
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{ |
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// TODO: sprite trajectory |
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} |
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if (dec->reduced_resolution_enable && |
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dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
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(coding_type == P_VOP || coding_type == I_VOP)) |
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{ |
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BitstreamSkip(bs, 1); /* XXX: vop_reduced_resolution */ |
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} |
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if (coding_type != I_VOP && fcode_forward) |
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{ |
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*fcode_forward = BitstreamGetBits(bs, 3); |
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DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); |
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} |
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if (coding_type == B_VOP && fcode_backward) |
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{ |
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*fcode_backward = BitstreamGetBits(bs, 3); |
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DPRINTF(DPRINTF_HEADER,"fcode_backward %i", *fcode_backward); |
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} |
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} |
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} |
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if (dec->newpred_enable) |
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{ |
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int vop_id; |
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int vop_id_for_prediction; |
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vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
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DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
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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)); |
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DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
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} |
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READ_MARKER(); |
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} |
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return mbnum; |
return mbnum; |
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} |
} |
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/* vol estimation header */ |
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static void |
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read_vol_complexity_estimation_header(Bitstream * bs, DECODER * dec) |
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{ |
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ESTIMATION * e = &dec->estimation; |
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e->method = BitstreamGetBits(bs, 2); /* estimation_method */ |
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DPRINTF(DPRINTF_HEADER,"+ complexity_estimation_header; method=%i", e->method); |
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if (e->method == 0 || e->method == 1) |
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{ |
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if (!BitstreamGetBit(bs)) /* shape_complexity_estimation_disable */ |
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{ |
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e->opaque = BitstreamGetBit(bs); /* opaque */ |
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e->transparent = BitstreamGetBit(bs); /* transparent */ |
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e->intra_cae = BitstreamGetBit(bs); /* intra_cae */ |
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e->inter_cae = BitstreamGetBit(bs); /* inter_cae */ |
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e->no_update = BitstreamGetBit(bs); /* no_update */ |
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e->upsampling = BitstreamGetBit(bs); /* upsampling */ |
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} |
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if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_1_disable */ |
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{ |
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e->intra_blocks = BitstreamGetBit(bs); /* intra_blocks */ |
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e->inter_blocks = BitstreamGetBit(bs); /* inter_blocks */ |
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e->inter4v_blocks = BitstreamGetBit(bs); /* inter4v_blocks */ |
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e->not_coded_blocks = BitstreamGetBit(bs); /* not_coded_blocks */ |
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} |
288 |
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} |
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READ_MARKER(); |
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if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_2_disable */ |
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{ |
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e->dct_coefs = BitstreamGetBit(bs); /* dct_coefs */ |
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e->dct_lines = BitstreamGetBit(bs); /* dct_lines */ |
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e->vlc_symbols = BitstreamGetBit(bs); /* vlc_symbols */ |
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e->vlc_bits = BitstreamGetBit(bs); /* vlc_bits */ |
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} |
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if (!BitstreamGetBit(bs)) /* motion_compensation_complexity_disable */ |
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{ |
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e->apm = BitstreamGetBit(bs); /* apm */ |
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e->npm = BitstreamGetBit(bs); /* npm */ |
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e->interpolate_mc_q = BitstreamGetBit(bs); /* interpolate_mc_q */ |
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e->forw_back_mc_q = BitstreamGetBit(bs); /* forw_back_mc_q */ |
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e->halfpel2 = BitstreamGetBit(bs); /* halfpel2 */ |
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e->halfpel4 = BitstreamGetBit(bs); /* halfpel4 */ |
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} |
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READ_MARKER(); |
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if (e->method == 1) |
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{ |
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if (!BitstreamGetBit(bs)) /* version2_complexity_estimation_disable */ |
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{ |
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e->sadct = BitstreamGetBit(bs); /* sadct */ |
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e->quarterpel = BitstreamGetBit(bs); /* quarterpel */ |
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} |
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} |
320 |
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} |
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/* vop estimation header */ |
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static void |
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read_vop_complexity_estimation_header(Bitstream * bs, DECODER * dec, int coding_type) |
326 |
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{ |
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ESTIMATION * e = &dec->estimation; |
328 |
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329 |
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if (e->method == 0 || e->method == 1) |
330 |
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{ |
331 |
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if (coding_type == I_VOP) { |
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if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
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if (e->transparent) BitstreamSkip(bs, 8); /* */ |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
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if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
339 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
340 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
341 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
342 |
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if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
343 |
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if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
344 |
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if (e->sadct) BitstreamSkip(bs, 8); /* */ |
345 |
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} |
346 |
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347 |
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if (coding_type == P_VOP) { |
348 |
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if (e->opaque) BitstreamSkip(bs, 8); /* */ |
349 |
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if (e->transparent) BitstreamSkip(bs, 8); /* */ |
350 |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
351 |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
352 |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
354 |
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if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
358 |
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if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
359 |
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if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
360 |
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if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
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if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
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if (e->apm) BitstreamSkip(bs, 8); /* */ |
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if (e->npm) BitstreamSkip(bs, 8); /* */ |
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if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
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if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
366 |
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if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
367 |
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if (e->sadct) BitstreamSkip(bs, 8); /* */ |
368 |
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if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
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} |
370 |
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if (coding_type == B_VOP) { |
371 |
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if (e->opaque) BitstreamSkip(bs, 8); /* */ |
372 |
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if (e->transparent) BitstreamSkip(bs, 8); /* */ |
373 |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
374 |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
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if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
378 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
379 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
380 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
381 |
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if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
382 |
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if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
383 |
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if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
384 |
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if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
385 |
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if (e->apm) BitstreamSkip(bs, 8); /* */ |
386 |
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if (e->npm) BitstreamSkip(bs, 8); /* */ |
387 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
388 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
389 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
390 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
391 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
392 |
|
if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
393 |
|
} |
394 |
|
|
395 |
|
if (coding_type == S_VOP && dec->sprite_enable == SPRITE_STATIC) { |
396 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
397 |
|
if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
398 |
|
if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
399 |
|
if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
400 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
401 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
402 |
|
if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
403 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
404 |
|
if (e->apm) BitstreamSkip(bs, 8); /* */ |
405 |
|
if (e->npm) BitstreamSkip(bs, 8); /* */ |
406 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
407 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
408 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
409 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
410 |
|
} |
411 |
|
} |
412 |
|
} |
413 |
|
|
414 |
|
|
415 |
|
|
416 |
|
|
417 |
|
|
418 |
/* |
/* |
419 |
decode headers |
decode headers |
420 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
427 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
428 |
DECODER * dec, |
DECODER * dec, |
429 |
uint32_t * rounding, |
uint32_t * rounding, |
430 |
|
uint32_t * reduced_resolution, |
431 |
uint32_t * quant, |
uint32_t * quant, |
432 |
uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
433 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
434 |
uint32_t * intra_dc_threshold) |
uint32_t * intra_dc_threshold, |
435 |
|
WARPPOINTS *gmc_warp) |
436 |
{ |
{ |
437 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
|
static uint32_t time_increment_resolution; |
|
438 |
uint32_t coding_type; |
uint32_t coding_type; |
439 |
uint32_t start_code; |
uint32_t start_code; |
440 |
uint32_t time_incr = 0; |
uint32_t time_incr = 0; |
441 |
int32_t time_increment = 0; |
int32_t time_increment = 0; |
442 |
|
int resize = 0; |
443 |
|
|
444 |
do { |
do { |
445 |
|
|
446 |
BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
447 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
448 |
|
|
452 |
|
|
453 |
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
454 |
|
|
455 |
BitstreamSkip(bs, 32); /* visual_object_sequence_start_code */ |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
456 |
profile = BitstreamGetBits(bs, 8); /* profile_and_level_indication */ |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
457 |
|
|
458 |
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
459 |
|
|
460 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
461 |
|
|
462 |
BitstreamSkip(bs, 32); /* visual_object_sequence_stop_code */ |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
463 |
|
|
464 |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
465 |
|
|
466 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
467 |
|
int visobj_ver_id; |
468 |
|
|
469 |
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
470 |
|
|
471 |
BitstreamSkip(bs, 32); /* visual_object_start_code */ |
BitstreamSkip(bs, 32); // visual_object_start_code |
472 |
if (BitstreamGetBit(bs)) /* is_visual_object_identified */ |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
473 |
{ |
{ |
474 |
vol_ver_id = BitstreamGetBits(bs, 4); /* visual_object_ver_id */ |
visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
475 |
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
DPRINTF(DPRINTF_HEADER,"visobj_ver_id %i", visobj_ver_id); |
476 |
BitstreamSkip(bs, 3); /* visual_object_priority */ |
BitstreamSkip(bs, 3); // visual_object_priority |
477 |
} else { |
} else { |
478 |
vol_ver_id = 1; |
visobj_ver_id = 1; |
479 |
} |
} |
480 |
|
|
481 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) /* visual_object_type */ |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
482 |
{ |
{ |
483 |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
484 |
return -1; |
return -1; |
485 |
} |
} |
486 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
487 |
|
|
488 |
/* video_signal_type */ |
// video_signal_type |
489 |
|
|
490 |
if (BitstreamGetBit(bs)) /* video_signal_type */ |
if (BitstreamGetBit(bs)) // video_signal_type |
491 |
{ |
{ |
492 |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
493 |
BitstreamSkip(bs, 3); /* video_format */ |
BitstreamSkip(bs, 3); // video_format |
494 |
BitstreamSkip(bs, 1); /* video_range */ |
BitstreamSkip(bs, 1); // video_range |
495 |
if (BitstreamGetBit(bs)) /* color_description */ |
if (BitstreamGetBit(bs)) // color_description |
496 |
{ |
{ |
497 |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
498 |
BitstreamSkip(bs, 8); /* color_primaries */ |
BitstreamSkip(bs, 8); // color_primaries |
499 |
BitstreamSkip(bs, 8); /* transfer_characteristics */ |
BitstreamSkip(bs, 8); // transfer_characteristics |
500 |
BitstreamSkip(bs, 8); /* matrix_coefficients */ |
BitstreamSkip(bs, 8); // matrix_coefficients |
501 |
} |
} |
502 |
} |
} |
503 |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
505 |
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
506 |
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
507 |
|
|
508 |
BitstreamSkip(bs, 32); /* video_object_start_code */ |
BitstreamSkip(bs, 32); // video_object_start_code |
509 |
|
|
510 |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
511 |
|
|
512 |
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
513 |
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
514 |
|
|
515 |
BitstreamSkip(bs, 32); /* video_object_layer_start_code */ |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
516 |
|
|
517 |
BitstreamSkip(bs, 1); /* random_accessible_vol */ |
BitstreamSkip(bs, 1); // random_accessible_vol |
518 |
|
|
519 |
/* video_object_type_indication */ |
// video_object_type_indication |
520 |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && BitstreamShowBits(bs, 8) != 0) /* BUGGY DIVX */ |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && |
521 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
522 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
523 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && |
524 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && |
525 |
|
BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
526 |
{ |
{ |
527 |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
528 |
BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
531 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
532 |
|
|
533 |
|
|
534 |
if (BitstreamGetBit(bs)) /* is_object_layer_identifier */ |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
535 |
{ |
{ |
536 |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
537 |
vol_ver_id = BitstreamGetBits(bs, 4); /* video_object_layer_verid */ |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
538 |
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
539 |
BitstreamSkip(bs, 3); /* video_object_layer_priority */ |
BitstreamSkip(bs, 3); // video_object_layer_priority |
540 |
} else { |
} else { |
541 |
vol_ver_id = 1; |
vol_ver_id = 1; |
542 |
} |
} |
543 |
|
|
544 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) /* aspect_ratio_info */ |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
545 |
|
|
546 |
|
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
547 |
{ |
{ |
548 |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
549 |
BitstreamSkip(bs, 8); /* par_width */ |
dec->par_width = BitstreamGetBits(bs, 8); // par_width |
550 |
BitstreamSkip(bs, 8); /* par_height */ |
dec->par_height = BitstreamGetBits(bs, 8); // par_height |
551 |
} |
} |
552 |
|
|
553 |
if (BitstreamGetBit(bs)) /* vol_control_parameters */ |
if (BitstreamGetBit(bs)) // vol_control_parameters |
554 |
{ |
{ |
555 |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
556 |
BitstreamSkip(bs, 2); /* chroma_format */ |
BitstreamSkip(bs, 2); // chroma_format |
557 |
dec->low_delay = BitstreamGetBit(bs); /* low_delay */ |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
558 |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
559 |
if (BitstreamGetBit(bs)) /* vbv_parameters */ |
if (BitstreamGetBit(bs)) // vbv_parameters |
560 |
{ |
{ |
561 |
|
unsigned int bitrate; |
562 |
|
unsigned int buffer_size; |
563 |
|
unsigned int occupancy; |
564 |
|
|
565 |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
566 |
BitstreamSkip(bs, 15); /* first_half_bitrate */ |
|
567 |
|
bitrate = BitstreamGetBits(bs,15) << 15; // first_half_bit_rate |
568 |
READ_MARKER(); |
READ_MARKER(); |
569 |
BitstreamSkip(bs, 15); /* latter_half_bitrate */ |
bitrate |= BitstreamGetBits(bs,15); // latter_half_bit_rate |
570 |
READ_MARKER(); |
READ_MARKER(); |
571 |
BitstreamSkip(bs, 15); /* first_half_vbv_buffer_size */ |
|
572 |
|
buffer_size = BitstreamGetBits(bs, 15) << 3; // first_half_vbv_buffer_size |
573 |
READ_MARKER(); |
READ_MARKER(); |
574 |
BitstreamSkip(bs, 3); /* latter_half_vbv_buffer_size */ |
buffer_size |= BitstreamGetBits(bs, 3); // latter_half_vbv_buffer_size |
575 |
BitstreamSkip(bs, 11); /* first_half_vbv_occupancy */ |
|
576 |
|
occupancy = BitstreamGetBits(bs, 11) << 15; // first_half_vbv_occupancy |
577 |
READ_MARKER(); |
READ_MARKER(); |
578 |
BitstreamSkip(bs, 15); /* latter_half_vbv_occupancy */ |
occupancy |= BitstreamGetBits(bs, 15); // latter_half_vbv_occupancy |
579 |
READ_MARKER(); |
READ_MARKER(); |
580 |
|
|
581 |
|
DPRINTF(DPRINTF_HEADER,"bitrate %d (unit=400 bps)", bitrate); |
582 |
|
DPRINTF(DPRINTF_HEADER,"buffer_size %d (unit=16384 bits)", buffer_size); |
583 |
|
DPRINTF(DPRINTF_HEADER,"occupancy %d (unit=64 bits)", occupancy); |
584 |
} |
} |
585 |
|
}else{ |
586 |
|
dec->low_delay = dec->low_delay_default; |
587 |
} |
} |
588 |
|
|
589 |
dec->shape = BitstreamGetBits(bs, 2); /* video_object_layer_shape */ |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
590 |
|
|
591 |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
592 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
593 |
|
{ |
594 |
|
DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); |
595 |
|
} |
596 |
|
|
597 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
598 |
BitstreamSkip(bs, 4); /* video_object_layer_shape_extension */ |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
599 |
} |
} |
600 |
|
|
601 |
READ_MARKER(); |
READ_MARKER(); |
602 |
|
|
603 |
/* *************************** for decode B-frame time *********************** */ |
// *************************** for decode B-frame time *********************** |
604 |
time_increment_resolution = BitstreamGetBits(bs, 16); /* vop_time_increment_resolution */ |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
605 |
|
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
606 |
|
|
607 |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", time_increment_resolution); |
// dec->time_inc_resolution--; |
608 |
|
|
609 |
/* time_increment_resolution--; */ |
if (dec->time_inc_resolution > 0) { |
610 |
|
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
|
if (time_increment_resolution > 0) { |
|
|
dec->time_inc_bits = log2bin(time_increment_resolution-1); |
|
611 |
} else { |
} else { |
612 |
/* dec->time_inc_bits = 0; */ |
// dec->time_inc_bits = 0; |
613 |
/* for "old" xvid compatibility, set time_inc_bits = 1 */ |
// for "old" xvid compatibility, set time_inc_bits = 1 |
614 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
615 |
} |
} |
616 |
|
|
617 |
READ_MARKER(); |
READ_MARKER(); |
618 |
|
|
619 |
if (BitstreamGetBit(bs)) /* fixed_vop_rate */ |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
620 |
{ |
{ |
621 |
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
622 |
BitstreamSkip(bs, dec->time_inc_bits); /* fixed_vop_time_increment */ |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
623 |
} |
} |
624 |
|
|
625 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
628 |
uint32_t width, height; |
uint32_t width, height; |
629 |
|
|
630 |
READ_MARKER(); |
READ_MARKER(); |
631 |
width = BitstreamGetBits(bs, 13); /* video_object_layer_width */ |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
632 |
READ_MARKER(); |
READ_MARKER(); |
633 |
height = BitstreamGetBits(bs, 13); /* video_object_layer_height */ |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
634 |
READ_MARKER(); |
READ_MARKER(); |
635 |
|
|
636 |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
637 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
638 |
|
|
639 |
/* for auto set width & height */ |
if (dec->width != width || dec->height != height) |
640 |
if (dec->width == 0) |
{ |
641 |
dec->width = width; |
if (dec->fixed_dimensions) |
642 |
if (dec->height == 0) |
{ |
|
dec->height = height; |
|
|
|
|
|
if (width != dec->width || height != dec->height) { |
|
643 |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
644 |
return -1; |
return -1; |
645 |
} |
} |
646 |
|
resize = 1; |
647 |
|
dec->width = width; |
648 |
|
dec->height = height; |
649 |
|
} |
650 |
} |
} |
651 |
|
|
652 |
dec->interlacing = BitstreamGetBit(bs); |
dec->interlacing = BitstreamGetBit(bs); |
653 |
DPRINTF(DPRINTF_HEADER, "interlace", dec->interlacing); |
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
654 |
|
|
655 |
if (!BitstreamGetBit(bs)) /* obmc_disable */ |
if (!BitstreamGetBit(bs)) // obmc_disable |
656 |
{ |
{ |
657 |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
658 |
/* TODO */ |
// TODO |
659 |
/* fucking divx4.02 has this enabled */ |
// fucking divx4.02 has this enabled |
660 |
} |
} |
661 |
|
|
662 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) /* sprite_enable */ |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable |
663 |
|
|
664 |
|
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
665 |
{ |
{ |
666 |
DPRINTF(DPRINTF_ERROR, "spriate_enabled not supported"); |
int low_latency_sprite_enable; |
667 |
return -1; |
|
668 |
|
if (dec->sprite_enable != SPRITE_GMC) |
669 |
|
{ |
670 |
|
int sprite_width; |
671 |
|
int sprite_height; |
672 |
|
int sprite_left_coord; |
673 |
|
int sprite_top_coord; |
674 |
|
sprite_width = BitstreamGetBits(bs, 13); // sprite_width |
675 |
|
READ_MARKER(); |
676 |
|
sprite_height = BitstreamGetBits(bs, 13); // sprite_height |
677 |
|
READ_MARKER(); |
678 |
|
sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate |
679 |
|
READ_MARKER(); |
680 |
|
sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate |
681 |
|
READ_MARKER(); |
682 |
|
} |
683 |
|
dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points |
684 |
|
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy |
685 |
|
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change |
686 |
|
if (dec->sprite_enable != SPRITE_GMC) |
687 |
|
{ |
688 |
|
low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable |
689 |
|
} |
690 |
} |
} |
691 |
|
|
692 |
if (vol_ver_id != 1 && |
if (vol_ver_id != 1 && |
693 |
dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
694 |
BitstreamSkip(bs, 1); /* sadct_disable */ |
BitstreamSkip(bs, 1); // sadct_disable |
695 |
} |
} |
696 |
|
|
697 |
if (BitstreamGetBit(bs)) /* not_8_bit */ |
if (BitstreamGetBit(bs)) // not_8_bit |
698 |
{ |
{ |
699 |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
700 |
dec->quant_bits = BitstreamGetBits(bs, 4); /* quant_precision */ |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
701 |
BitstreamSkip(bs, 4); /* bits_per_pixel */ |
BitstreamSkip(bs, 4); // bits_per_pixel |
702 |
} else { |
} else { |
703 |
dec->quant_bits = 5; |
dec->quant_bits = 5; |
704 |
} |
} |
705 |
|
|
706 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
707 |
BitstreamSkip(bs, 1); /* no_gray_quant_update */ |
BitstreamSkip(bs, 1); // no_gray_quant_update |
708 |
BitstreamSkip(bs, 1); /* composition_method */ |
BitstreamSkip(bs, 1); // composition_method |
709 |
BitstreamSkip(bs, 1); /* linear_composition */ |
BitstreamSkip(bs, 1); // linear_composition |
710 |
} |
} |
711 |
|
|
712 |
dec->quant_type = BitstreamGetBit(bs); /* quant_type */ |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
713 |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
714 |
|
|
715 |
if (dec->quant_type) { |
if (dec->quant_type) { |
716 |
if (BitstreamGetBit(bs)) /* load_intra_quant_mat */ |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
717 |
{ |
{ |
718 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
719 |
|
|
724 |
} else |
} else |
725 |
set_intra_matrix(get_default_intra_matrix()); |
set_intra_matrix(get_default_intra_matrix()); |
726 |
|
|
727 |
if (BitstreamGetBit(bs)) /* load_inter_quant_mat */ |
if (BitstreamGetBit(bs)) // load_inter_quant_mat |
728 |
{ |
{ |
729 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
730 |
|
|
744 |
|
|
745 |
|
|
746 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
747 |
DPRINTF(DPRINTF_DEBUG, "QUARTERPEL BITSTREAM"); |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
748 |
dec->quarterpel = BitstreamGetBit(bs); /* quarter_sample */ |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
749 |
} |
} |
750 |
else |
else |
751 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
752 |
|
|
753 |
|
|
754 |
if (!BitstreamGetBit(bs)) /* complexity_estimation_disable */ |
dec->complexity_estimation_disable = BitstreamGetBit(bs); /* complexity estimation disable */ |
755 |
|
if (!dec->complexity_estimation_disable) |
756 |
{ |
{ |
757 |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
read_vol_complexity_estimation_header(bs, dec); |
|
return -1; |
|
758 |
} |
} |
759 |
|
|
760 |
BitstreamSkip(bs, 1); /* resync_marker_disable */ |
BitstreamSkip(bs, 1); // resync_marker_disable |
761 |
|
|
762 |
if (BitstreamGetBit(bs)) /* data_partitioned */ |
if (BitstreamGetBit(bs)) // data_partitioned |
763 |
{ |
{ |
764 |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
765 |
BitstreamSkip(bs, 1); /* reversible_vlc */ |
BitstreamSkip(bs, 1); // reversible_vlc |
766 |
} |
} |
767 |
|
|
768 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
769 |
if (BitstreamGetBit(bs)) /* newpred_enable */ |
dec->newpred_enable = BitstreamGetBit(bs); |
770 |
|
if (dec->newpred_enable) // newpred_enable |
771 |
{ |
{ |
772 |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
773 |
BitstreamSkip(bs, 2); /* requested_upstream_message_type */ |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
774 |
BitstreamSkip(bs, 1); /* newpred_segment_type */ |
BitstreamSkip(bs, 1); // newpred_segment_type |
775 |
} |
} |
776 |
if (BitstreamGetBit(bs)) /* reduced_resolution_vop_enable */ |
dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ |
777 |
{ |
DPRINTF(DPRINTF_HEADER, "reduced_resolution_enable %i", dec->reduced_resolution_enable); |
|
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
|
|
return -1; |
|
778 |
} |
} |
779 |
|
else |
780 |
|
{ |
781 |
|
dec->newpred_enable = 0; |
782 |
|
dec->reduced_resolution_enable = 0; |
783 |
} |
} |
784 |
|
|
785 |
if ((dec->scalability = BitstreamGetBit(bs))) /* scalability */ |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
786 |
|
if (dec->scalability) |
787 |
{ |
{ |
788 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
789 |
|
BitstreamSkip(bs, 1); /* hierarchy_type */ |
790 |
|
BitstreamSkip(bs, 4); /* ref_layer_id */ |
791 |
|
BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ |
792 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
793 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
794 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
795 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
796 |
|
BitstreamSkip(bs, 1); /* enhancement_type */ |
797 |
|
if(dec->shape == VIDOBJLAY_SHAPE_BINARY /* && hierarchy_type==0 */) { |
798 |
|
BitstreamSkip(bs, 1); /* use_ref_shape */ |
799 |
|
BitstreamSkip(bs, 1); /* use_ref_texture */ |
800 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_n */ |
801 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_m */ |
802 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_n */ |
803 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_m */ |
804 |
|
} |
805 |
return -1; |
return -1; |
806 |
} |
} |
807 |
} else /* dec->shape == BINARY_ONLY */ |
} else // dec->shape == BINARY_ONLY |
808 |
{ |
{ |
809 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
810 |
if (BitstreamGetBit(bs)) /* scalability */ |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
811 |
|
if (dec->scalability) |
812 |
{ |
{ |
813 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
814 |
|
BitstreamSkip(bs, 4); /* ref_layer_id */ |
815 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
816 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
817 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
818 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
819 |
return -1; |
return -1; |
820 |
} |
} |
821 |
} |
} |
822 |
BitstreamSkip(bs, 1); /* resync_marker_disable */ |
BitstreamSkip(bs, 1); // resync_marker_disable |
823 |
|
|
824 |
} |
} |
825 |
|
|
826 |
|
return (resize ? -3 : -2 ); /* VOL */ |
827 |
|
|
828 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
829 |
|
|
830 |
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
838 |
READ_MARKER(); |
READ_MARKER(); |
839 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
840 |
|
|
841 |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours,minutes,seconds); |
842 |
} |
} |
843 |
BitstreamSkip(bs, 1); /* closed_gov */ |
BitstreamSkip(bs, 1); // closed_gov |
844 |
BitstreamSkip(bs, 1); /* broken_link */ |
BitstreamSkip(bs, 1); // broken_link |
845 |
|
|
846 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
847 |
|
|
848 |
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
849 |
|
|
850 |
BitstreamSkip(bs, 32); /* vop_start_code */ |
BitstreamSkip(bs, 32); // vop_start_code |
851 |
|
|
852 |
coding_type = BitstreamGetBits(bs, 2); /* vop_coding_type */ |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
853 |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
854 |
|
|
855 |
/* *************************** for decode B-frame time *********************** */ |
// *************************** for decode B-frame time *********************** |
856 |
while (BitstreamGetBit(bs) != 0) /* time_base */ |
while (BitstreamGetBit(bs) != 0) // time_base |
857 |
time_incr++; |
time_incr++; |
858 |
|
|
859 |
READ_MARKER(); |
READ_MARKER(); |
860 |
|
|
861 |
if (dec->time_inc_bits) { |
if (dec->time_inc_bits) { |
862 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
863 |
} |
} |
864 |
|
|
865 |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
866 |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
867 |
|
|
868 |
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
869 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
870 |
time_incr, time_increment); |
time_incr, time_increment); |
871 |
|
|
872 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
874 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
875 |
dec->time = time_increment; |
dec->time = time_increment; |
876 |
|
|
877 |
/* dec->time_base * time_increment_resolution + |
/* dec->time_base * dec->time_inc_resolution + |
878 |
time_increment; |
time_increment; |
879 |
*/ dec->time_pp = (uint32_t) |
*/ dec->time_pp = (uint32_t) |
880 |
(time_increment_resolution + dec->time - dec->last_non_b_time)%time_increment_resolution; |
(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
881 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
882 |
} else { |
} else { |
883 |
dec->time = time_increment; |
dec->time = time_increment; |
884 |
/* |
/* |
885 |
(dec->last_time_base + |
(dec->last_time_base + |
886 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * dec->time_inc_resolution + time_increment; |
887 |
*/ |
*/ |
888 |
dec->time_bp = (uint32_t) |
dec->time_bp = (uint32_t) |
889 |
(time_increment_resolution + dec->last_non_b_time - dec->time)%time_increment_resolution; |
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
890 |
} |
} |
891 |
|
DPRINTF(DPRINTF_HEADER,"time_pp=%i", dec->time_pp); |
892 |
|
DPRINTF(DPRINTF_HEADER,"time_bp=%i", dec->time_bp); |
893 |
|
|
894 |
READ_MARKER(); |
READ_MARKER(); |
895 |
|
|
896 |
if (!BitstreamGetBit(bs)) /* vop_coded */ |
if (!BitstreamGetBit(bs)) // vop_coded |
897 |
{ |
{ |
898 |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
899 |
return N_VOP; |
return N_VOP; |
900 |
} |
} |
901 |
|
|
902 |
/* if (newpred_enable) |
if (dec->newpred_enable) |
903 |
|
{ |
904 |
|
int vop_id; |
905 |
|
int vop_id_for_prediction; |
906 |
|
|
907 |
|
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
908 |
|
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
909 |
|
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
910 |
{ |
{ |
911 |
|
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
912 |
|
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
913 |
|
} |
914 |
|
READ_MARKER(); |
915 |
} |
} |
|
*/ |
|
916 |
|
|
917 |
/* fix a little bug by MinChen <chenm002@163.com> */ |
|
918 |
|
|
919 |
|
// fix a little bug by MinChen <chenm002@163.com> |
920 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
921 |
(coding_type == P_VOP)) { |
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
922 |
*rounding = BitstreamGetBit(bs); /* rounding_type */ |
*rounding = BitstreamGetBit(bs); // rounding_type |
923 |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
924 |
} |
} |
925 |
|
|
926 |
/* if (reduced_resolution_enable) |
if (dec->reduced_resolution_enable && |
927 |
|
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
928 |
|
(coding_type == P_VOP || coding_type == I_VOP)) { |
929 |
|
|
930 |
|
*reduced_resolution = BitstreamGetBit(bs); |
931 |
|
DPRINTF(DPRINTF_HEADER, "reduced_resolution %i", *reduced_resolution); |
932 |
|
} |
933 |
|
else |
934 |
{ |
{ |
935 |
|
*reduced_resolution = 0; |
936 |
} |
} |
|
*/ |
|
937 |
|
|
938 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
939 |
|
if(!(dec->sprite_enable == SPRITE_STATIC && coding_type == I_VOP)) { |
940 |
|
|
941 |
uint32_t width, height; |
uint32_t width, height; |
942 |
uint32_t horiz_mc_ref, vert_mc_ref; |
uint32_t horiz_mc_ref, vert_mc_ref; |
943 |
|
|
954 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
955 |
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
956 |
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
957 |
|
} |
958 |
|
|
959 |
BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
960 |
if (BitstreamGetBit(bs)) /* vop_constant_alpha */ |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
961 |
{ |
{ |
962 |
BitstreamSkip(bs, 8); /* vop_constant_alpha_value */ |
BitstreamSkip(bs, 8); // vop_constant_alpha_value |
963 |
} |
} |
964 |
} |
} |
965 |
|
|
|
|
|
966 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
967 |
/* intra_dc_vlc_threshold */ |
|
968 |
|
if (!dec->complexity_estimation_disable) |
969 |
|
{ |
970 |
|
read_vop_complexity_estimation_header(bs, dec, coding_type); |
971 |
|
} |
972 |
|
|
973 |
|
// intra_dc_vlc_threshold |
974 |
*intra_dc_threshold = |
*intra_dc_threshold = |
975 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
976 |
|
|
977 |
|
dec->top_field_first = 0; |
978 |
|
dec->alternate_vertical_scan = 0; |
979 |
|
|
980 |
if (dec->interlacing) { |
if (dec->interlacing) { |
981 |
dec->top_field_first = BitstreamGetBit(bs); |
dec->top_field_first = BitstreamGetBit(bs); |
982 |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
986 |
} |
} |
987 |
} |
} |
988 |
|
|
989 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) /* vop_quant */ |
if ((dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable== SPRITE_GMC) && coding_type == S_VOP) { |
990 |
*quant = 1; |
|
991 |
|
int i; |
992 |
|
|
993 |
|
for (i = 0 ; i < dec->sprite_warping_points; i++) |
994 |
|
{ |
995 |
|
int length; |
996 |
|
int x = 0, y = 0; |
997 |
|
|
998 |
|
/* sprite code borowed from ffmpeg; thx Michael Niedermayer <michaelni@gmx.at> */ |
999 |
|
length = bs_get_spritetrajectory(bs); |
1000 |
|
if(length){ |
1001 |
|
x= BitstreamGetBits(bs, length); |
1002 |
|
if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
1003 |
|
x = - (x ^ ((1 << length) - 1)); |
1004 |
|
} |
1005 |
|
READ_MARKER(); |
1006 |
|
|
1007 |
|
length = bs_get_spritetrajectory(bs); |
1008 |
|
if(length){ |
1009 |
|
y = BitstreamGetBits(bs, length); |
1010 |
|
if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
1011 |
|
y = - (y ^ ((1 << length) - 1)); |
1012 |
|
} |
1013 |
|
READ_MARKER(); |
1014 |
|
|
1015 |
|
gmc_warp->duv[i].x = x; |
1016 |
|
gmc_warp->duv[i].y = y; |
1017 |
|
|
1018 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
1019 |
|
} |
1020 |
|
|
1021 |
|
if (dec->sprite_brightness_change) |
1022 |
|
{ |
1023 |
|
// XXX: brightness_change_factor() |
1024 |
|
} |
1025 |
|
if (dec->sprite_enable == SPRITE_STATIC) |
1026 |
|
{ |
1027 |
|
// XXX: todo |
1028 |
|
} |
1029 |
|
|
1030 |
|
} |
1031 |
|
|
1032 |
|
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
1033 |
|
*quant = 1; |
1034 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
1035 |
|
|
1036 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
1037 |
*fcode_forward = BitstreamGetBits(bs, 3); /* fcode_forward */ |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
1038 |
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
1039 |
} |
} |
1040 |
|
|
1041 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
1042 |
*fcode_backward = BitstreamGetBits(bs, 3); /* fcode_backward */ |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
1043 |
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
1044 |
} |
} |
1045 |
if (!dec->scalability) { |
if (!dec->scalability) { |
1046 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
1047 |
(coding_type != I_VOP)) { |
(coding_type != I_VOP)) { |
1048 |
BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
BitstreamSkip(bs, 1); // vop_shape_coding_type |
1049 |
} |
} |
1050 |
} |
} |
1051 |
return coding_type; |
return coding_type; |
1052 |
|
|
1053 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
1054 |
|
char tmp[256]; |
1055 |
|
int i, version, build; |
1056 |
|
char packed; |
1057 |
|
|
1058 |
|
BitstreamSkip(bs, 32); // user_data_start_code |
1059 |
|
|
1060 |
|
tmp[0] = BitstreamShowBits(bs, 8); |
1061 |
|
|
1062 |
|
for(i = 1; i < 256; i++){ |
1063 |
|
tmp[i] = (BitstreamShowBits(bs, 16) & 0xFF); |
1064 |
|
|
1065 |
|
if(tmp[i] == 0) |
1066 |
|
break; |
1067 |
|
|
1068 |
|
BitstreamSkip(bs, 8); |
1069 |
|
} |
1070 |
|
|
1071 |
DPRINTF(DPRINTF_STARTCODE, "<user_data>"); |
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
1072 |
|
|
1073 |
BitstreamSkip(bs, 32); /* user_data_start_code */ |
/* divx detection */ |
1074 |
|
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1075 |
|
if (i < 2) |
1076 |
|
i = sscanf(tmp, "DivX%db%d%c", &version, &build, &packed); |
1077 |
|
|
1078 |
} else /* start_code == ? */ |
if (i >= 2) |
1079 |
|
{ |
1080 |
|
dec->packed_mode = (i == 3 && packed == 'p'); |
1081 |
|
DPRINTF(DPRINTF_HEADER, "divx version=%i, build=%i packed=%i", |
1082 |
|
version, build, dec->packed_mode); |
1083 |
|
} |
1084 |
|
|
1085 |
|
} else // start_code == ? |
1086 |
{ |
{ |
1087 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1088 |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
1092 |
} |
} |
1093 |
while ((BitstreamPos(bs) >> 3) < bs->length); |
while ((BitstreamPos(bs) >> 3) < bs->length); |
1094 |
|
|
1095 |
/*DPRINTF("*** WARNING: no vop_start_code found"); */ |
//DPRINTF("*** WARNING: no vop_start_code found"); |
1096 |
return -1; /* ignore it */ |
return -1; /* ignore it */ |
1097 |
} |
} |
1098 |
|
|
1124 |
void |
void |
1125 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
1126 |
const MBParam * pParam, |
const MBParam * pParam, |
1127 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame) |
1128 |
{ |
{ |
1129 |
/* video object_start_code & vo_id */ |
static const unsigned int vo_id = 0; |
1130 |
|
static const unsigned int vol_id = 0; |
1131 |
|
int vol_ver_id=1; |
1132 |
|
int profile = 0x03; /* simple profile/level 3 */ |
1133 |
|
|
1134 |
|
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
1135 |
|
(pParam->global & XVID_GLOBAL_REDUCED)) |
1136 |
|
vol_ver_id = 2; |
1137 |
|
|
1138 |
|
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1139 |
|
profile = 0x93; /* advanced realtime simple profile/level 3 */ |
1140 |
|
|
1141 |
|
if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) |
1142 |
|
profile = 0xf3; /* advanced simple profile/level 2 */ |
1143 |
|
|
1144 |
|
// visual_object_sequence_start_code |
1145 |
|
// BitstreamPad(bs); |
1146 |
|
/* no padding here, anymore. You have to make sure that you are |
1147 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1148 |
|
|
1149 |
|
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
1150 |
|
BitstreamPutBits(bs, profile, 8); |
1151 |
|
|
1152 |
|
// visual_object_start_code |
1153 |
|
BitstreamPad(bs); |
1154 |
|
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1155 |
|
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
1156 |
|
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
1157 |
|
|
1158 |
|
// video object_start_code & vo_id |
1159 |
|
BitstreamPad(bs); |
1160 |
|
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1161 |
|
|
1162 |
|
// video_object_layer_start_code & vol_id |
1163 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1164 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
|
BitstreamPutBits(bs, 0, 5); |
|
1165 |
|
|
1166 |
/* video_object_layer_start_code & vol_id */ |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1167 |
BitstreamPutBits(bs, VOL_START_CODE, 28); |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
|
BitstreamPutBits(bs, 0, 4); |
|
1168 |
|
|
1169 |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
if (vol_ver_id == 1) |
1170 |
BitstreamPutBits(bs, 0, 8); /* video_object_type_indication */ |
{ |
1171 |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
1172 |
BitstreamPutBits(bs, 1, 4); /* aspect_ratio_info (1=1:1) */ |
} |
1173 |
|
else |
1174 |
|
{ |
1175 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
1176 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
1177 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
1178 |
|
} |
1179 |
|
|
1180 |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
|
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
|
1181 |
|
|
1182 |
BitstreamPutBit(bs, 1); /* low_delay */ |
BitstreamPutBit(bs, 1); // vol_control_parameters |
1183 |
|
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
1184 |
|
|
1185 |
BitstreamPutBit(bs, 0); /* vbv_parameters (0=not given) */ |
if (pParam->max_bframes > 0) { |
1186 |
|
BitstreamPutBit(bs, 0); // low_delay |
1187 |
|
} else |
1188 |
|
{ |
1189 |
|
BitstreamPutBit(bs, 1); // low_delay |
1190 |
|
} |
1191 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
1192 |
|
|
1193 |
BitstreamPutBits(bs, 0, 2); /* video_object_layer_shape (0=rectangular) */ |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
1194 |
|
|
1195 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1196 |
|
|
1197 |
/* |
/* time_inc_resolution; ignored by current decore versions |
1198 |
* time_increment_resolution; ignored by current decore versions |
eg. 2fps res=2 inc=1 |
1199 |
* eg. 2fps res=2 inc=1 |
25fps res=25 inc=1 |
1200 |
* 25fps res=25 inc=1 |
29.97fps res=30000 inc=1001 |
|
* 29.97fps res=30000 inc=1001 |
|
1201 |
*/ |
*/ |
1202 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
1203 |
|
|
|
|
|
1204 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1205 |
|
|
1206 |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
1207 |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); /* fixed_vop_time_increment */ |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
1208 |
|
|
1209 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1210 |
BitstreamPutBits(bs, pParam->width, 13); /* width */ |
BitstreamPutBits(bs, pParam->width, 13); // width |
1211 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1212 |
BitstreamPutBits(bs, pParam->height, 13); /* height */ |
BitstreamPutBits(bs, pParam->height, 13); // height |
1213 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1214 |
|
|
1215 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); /* interlace */ |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
1216 |
BitstreamPutBit(bs, 1); /* obmc_disable (overlapped block motion compensation) */ |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
1217 |
BitstreamPutBit(bs, 0); /* sprite_enable */ |
|
1218 |
BitstreamPutBit(bs, 0); /* not_in_bit */ |
if (vol_ver_id != 1) |
1219 |
|
{ if (frame->global_flags & XVID_GMC) |
1220 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
1221 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
1222 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
1223 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
1224 |
|
|
1225 |
/* quant_type 0=h.263 1=mpeg4(quantizer tables) */ |
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
1226 |
|
for DivX5 compatability */ |
1227 |
|
|
1228 |
|
} else |
1229 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
1230 |
|
} |
1231 |
|
else |
1232 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
1233 |
|
|
1234 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
1235 |
|
|
1236 |
|
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
1237 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
1238 |
|
|
1239 |
if (pParam->m_quant_type) { |
if (pParam->m_quant_type) { |
1240 |
BitstreamPutBit(bs, get_intra_matrix_status()); /* load_intra_quant_mat */ |
BitstreamPutBit(bs, get_intra_matrix_status()); // load_intra_quant_mat |
1241 |
if (get_intra_matrix_status()) { |
if (get_intra_matrix_status()) { |
1242 |
bs_put_matrix(bs, get_intra_matrix()); |
bs_put_matrix(bs, get_intra_matrix()); |
1243 |
} |
} |
1244 |
|
|
1245 |
BitstreamPutBit(bs, get_inter_matrix_status()); /* load_inter_quant_mat */ |
BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat |
1246 |
if (get_inter_matrix_status()) { |
if (get_inter_matrix_status()) { |
1247 |
bs_put_matrix(bs, get_inter_matrix()); |
bs_put_matrix(bs, get_inter_matrix()); |
1248 |
} |
} |
1249 |
|
|
1250 |
} |
} |
1251 |
|
|
1252 |
BitstreamPutBit(bs, 1); /* complexity_estimation_disable */ |
if (vol_ver_id != 1) { |
1253 |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
if (pParam->m_quarterpel) |
1254 |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
BitstreamPutBit(bs, 1); // quarterpel |
1255 |
BitstreamPutBit(bs, 0); /* scalability */ |
else |
1256 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
1257 |
|
} |
1258 |
|
|
1259 |
|
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
1260 |
|
BitstreamPutBit(bs, 1); // resync_marker_disable |
1261 |
|
BitstreamPutBit(bs, 0); // data_partitioned |
1262 |
|
|
1263 |
|
if (vol_ver_id != 1) |
1264 |
|
{ |
1265 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
1266 |
|
|
1267 |
|
BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); |
1268 |
|
/* reduced_resolution_vop_enabled */ |
1269 |
|
} |
1270 |
|
|
1271 |
|
BitstreamPutBit(bs, 0); // scalability |
1272 |
|
|
1273 |
|
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1274 |
|
#define DIVX5_ID "DivX501b481p" |
1275 |
|
if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
1276 |
|
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
1277 |
|
} |
1278 |
|
|
1279 |
|
/* xvid id */ |
1280 |
|
#define XVID_ID "XviD" XVID_BS_VERSION |
1281 |
|
BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); |
1282 |
} |
} |
1283 |
|
|
1284 |
|
|
1285 |
/* |
/* |
1286 |
write vop header |
write vop header |
|
|
|
|
NOTE: doesnt handle bother with time_base & time_inc |
|
|
time_base = n seconds since last resync (eg. last iframe) |
|
|
time_inc = nth of a second since last resync |
|
|
(decoder uses these values to determine precise time since last resync) |
|
1287 |
*/ |
*/ |
1288 |
void |
void |
1289 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader( |
1290 |
|
Bitstream * const bs, |
1291 |
const MBParam * pParam, |
const MBParam * pParam, |
1292 |
const FRAMEINFO * frame, |
const FRAMEINFO * const frame, |
1293 |
int vop_coded) |
int vop_coded) |
1294 |
{ |
{ |
1295 |
uint32_t i; |
uint32_t i; |
1296 |
|
|
1297 |
BitstreamPad(bs); |
// BitstreamPad(bs); |
1298 |
|
/* no padding here, anymore. You have to make sure that you are |
1299 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1300 |
|
|
1301 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1302 |
|
|
1303 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1304 |
|
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
1305 |
|
|
|
/* time_base = 0 write n x PutBit(1), PutBit(0) */ |
|
1306 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
1307 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
1308 |
} |
} |
1310 |
|
|
1311 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1312 |
|
|
1313 |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
1314 |
|
|
1315 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
1316 |
|
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
1317 |
|
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
1318 |
|
P_VOP ? 'P' : 'B');*/ |
1319 |
|
|
1320 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1321 |
|
|
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) |
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 |
BitstreamPutBits(bs, 0, 3); /* intra_dc_vlc_threshold */ |
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1333 |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); |
1334 |
|
|
1335 |
|
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
1336 |
|
|
1337 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
1338 |
BitstreamPutBit(bs, 1); /* top field first */ |
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
1339 |
BitstreamPutBit(bs, 0); /* alternate vertical scan */ |
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
1340 |
|
} |
1341 |
|
|
1342 |
|
if (frame->coding_type == S_VOP) { |
1343 |
|
if (1) { // no_of_sprite_warping_points>=1 (we use 2!) |
1344 |
|
int k; |
1345 |
|
for (k=0;k<2;k++) |
1346 |
|
{ |
1347 |
|
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); // du[k] |
1348 |
|
WRITE_MARKER(); |
1349 |
|
|
1350 |
|
bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); // dv[k] |
1351 |
|
WRITE_MARKER(); |
1352 |
|
|
1353 |
|
if (pParam->m_quarterpel) |
1354 |
|
{ |
1355 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); |
1356 |
|
} |
1357 |
|
else |
1358 |
|
{ |
1359 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", k, frame->warp.duv[k].x, frame->warp.duv[k].y); |
1360 |
|
} |
1361 |
|
} |
1362 |
} |
} |
1363 |
|
} |
1364 |
|
|
1365 |
|
|
1366 |
BitstreamPutBits(bs, frame->quant, 5); /* quantizer */ |
DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); |
1367 |
|
|
1368 |
|
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
1369 |
|
|
1370 |
if (frame->coding_type != I_VOP) |
if (frame->coding_type != I_VOP) |
1371 |
BitstreamPutBits(bs, frame->fcode, 3); /* forward_fixed_code */ |
BitstreamPutBits(bs, frame->fcode, 3); // forward_fixed_code |
1372 |
|
|
1373 |
if (frame->coding_type == B_VOP) |
if (frame->coding_type == B_VOP) |
1374 |
BitstreamPutBits(bs, frame->bcode, 3); /* backward_fixed_code */ |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
1375 |
|
|
1376 |
|
} |
1377 |
|
|
1378 |
|
void |
1379 |
|
BitstreamWriteUserData(Bitstream * const bs, |
1380 |
|
uint8_t * data, |
1381 |
|
const int length) |
1382 |
|
{ |
1383 |
|
int i; |
1384 |
|
|
1385 |
|
BitstreamPad(bs); |
1386 |
|
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
1387 |
|
|
1388 |
|
for (i = 0; i < length; i++) { |
1389 |
|
BitstreamPutBits(bs, data[i], 8); |
1390 |
|
} |
1391 |
|
|
1392 |
} |
} |