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Revision 1.14 - (download) (annotate)
Mon Jun 9 17:05:51 2003 UTC (21 years, 1 month ago) by Isibaar
Branch: MAIN
CVS Tags: cvs-head, tag-merging-20040322
Changes since 1.13: +3 -1 lines
don't use Walken idct anymore, simple idct is now used by default instead
 *  - Decoder header -
 *  This program is an implementation of a part of one or more MPEG-4
 *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
 *  to use this software module in hardware or software products are
 *  advised that its use may infringe existing patents or copyrights, and
 *  any such use would be at such party's own risk.  The original
 *  developer of this software module and his/her company, and subsequent
 *  editors and their companies, will have no liability for use of this
 *  software or modifications or derivatives thereof.
 *  This program is free software ; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation ; either version 2 of the License, or
 *  (at your option) any later version.
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
 *  GNU General Public License for more details.
 *  You should have received a copy of the GNU General Public License
 *  along with this program ; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *  History
 *  - 13.06.2002 Added legal header - Cosmetic
 *  $Id: decoder.h,v 1.14 2003/06/09 17:05:51 Isibaar Exp $

#ifndef _DECODER_H_
#define _DECODER_H_

#include "xvid.h"
#include "portab.h"
#include "global.h"
#include "image/image.h"

 * Structures

/* complexity estimation toggles */
typedef struct
	int method;

	int opaque;
	int transparent;
	int intra_cae;
	int inter_cae;
	int no_update;
	int upsampling;

	int intra_blocks;
	int inter_blocks;
	int inter4v_blocks;
	int gmc_blocks;
	int not_coded_blocks;

	int dct_coefs;
	int dct_lines;
	int vlc_symbols;
	int vlc_bits;

	int apm;
	int npm;
	int interpolate_mc_q;
	int forw_back_mc_q;
	int halfpel2;
	int halfpel4;

	int sadct;
	int quarterpel;

typedef struct
	// vol bitstream

	int time_inc_resolution;
	int fixed_time_inc;
	uint32_t time_inc_bits;

	uint32_t shape;
	uint32_t quant_bits;
	uint32_t quant_type;
	int32_t quarterpel;
	int complexity_estimation_disable;
	ESTIMATION estimation;

	int interlacing;
	uint32_t top_field_first;
	uint32_t alternate_vertical_scan;

	int aspect_ratio;
	int par_width;
	int par_height;

	int sprite_enable;
	int sprite_warping_points;
	int sprite_warping_accuracy;
	int sprite_brightness_change;

	int newpred_enable;
	int reduced_resolution_enable;

	int bs_version;

	// image

	int fixed_dimensions;
	uint32_t width;
	uint32_t height;
	uint32_t edged_width;
	uint32_t edged_height;

	IMAGE cur;
	IMAGE refn[2];				// 0   -- last I or P VOP
								// 1   -- first I or P
	IMAGE tmp;		/* bframe interpolation, and post processing tmp buffer */
	IMAGE qtmp;		/* quarter pel tmp buffer */

	// macroblock

	uint32_t mb_width;
	uint32_t mb_height;

	// for B-frame & low_delay==0
	// XXX: should move frame based stuff into a DECODER_FRAMEINFO struct */
	MACROBLOCK *last_mbs;			// last MB
	int last_reduced_resolution;	// last reduced_resolution value
	int32_t frames;				// total frame number
	int32_t packed_mode;		// bframes packed bitstream? (1 = yes)
	int8_t scalability;
	VECTOR p_fmv, p_bmv;		// pred forward & backward motion vector
	int64_t time;				// for record time
	int64_t time_base;
	int64_t last_time_base;
	int64_t last_non_b_time;
	uint32_t time_pp;
	uint32_t time_bp;
	uint32_t low_delay;			// low_delay flage (1 means no B_VOP)
	uint32_t low_delay_default;	// default value for low_delay flag

	// for GMC: central place for all parameters
	IMAGE gmc;		/* gmc tmp buffer, remove for blockbased compensation */
	GMC_DATA gmc_data;
	XVID_DEC_PICTURE* out_frm;                // This is used for slice rendering

 * Decoder prototypes

void init_decoder(uint32_t cpu_flags);

int decoder_create(XVID_DEC_PARAM * param);
int decoder_destroy(DECODER * dec);
int decoder_decode(DECODER * dec,
				   XVID_DEC_FRAME * frame, XVID_DEC_STATS * stats);


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