timer.c

用MPEG-4对YUV视频文件编码压缩成divx视频文件

 /******************************************************************************
  *                                                                            *
  *  This file is part of XviD, a free MPEG-4 video encoder/decoder            *
  *                                                                            *
  *  XviD 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.                                     *
  *                                                                            *
  *  XviD 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.                                       *
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  *  GNU General Public License for more details.                              *
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  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA  *
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  ******************************************************************************/

 /******************************************************************************
  *                                                                            *
  *  timer.c, some timing functions                                            *
  *                                                                            *
  *  Copyright (C) 2001 - Michael Militzer <[e-mail]>                  *
  *                                                                            *
  *  For more information visit the XviD homepage: http://www.xvid.org         *
  *                                                                            *
  ******************************************************************************/

 /******************************************************************************
  *                                                                            *
  *  Revision history:                                                         *
  *       
  *  26.03.2002 interlacing timer added
  *  21.12.2001 edges error fixed
  *  17.11.2001 small clean up (Isibaar)                                       *
  *  13.11.2001	inlined rdtsc call and moved to portab.h (Isibaar)             *
  *  02.11.2001 initial version (Isibaar)                                      *
  *                                                                            *
  ******************************************************************************/

#include <stdio.h>
#include <time.h>
#include "timer.h"

#if defined(_PROFILING_)

#ifndef _TRIMEDIA
struct ts
{
	int64_t current;
	int64_t global;
	int64_t overall;
	int64_t dct;
	int64_t idct;
	int64_t quant;
	int64_t iquant;
	int64_t motion;
	int64_t comp;
	int64_t edges;
	int64_t inter;
	int64_t conv;
	int64_t trans;
	int64_t prediction;
	int64_t coding;
	int64_t interlacing;
	int64_t cost;
};

struct ts tim;


double frequency = 0.0;

/* 
    determine cpu frequency
	not very precise but sufficient
*/
double
get_freq()
{
	int64_t x, y;
	int32_t i;

	i = time(NULL);/* second */

	while (i == time(NULL));

	x = read_counter();
	i++;

	while (i == time(NULL));

	y = read_counter();

	return (double) (y - x) / 1000.;
}

/* set everything to zero */
void
start_timer()
{
	tim.current = read_counter();
}

void
stop_cost_timer()
{
	tim.cost = (read_counter() - tim.current);
}

void
init_timer()
{
	frequency = get_freq();
    printf("cpu frequency is %f KHz \n",frequency);
    
	count_frames = 0;
	start_timer();
	stop_cost_timer();
    
	tim.dct = tim.quant = tim.idct = tim.iquant = tim.motion =tim.comp = tim.conv =
		tim.edges = tim.inter = tim.interlacing = tim.trans = tim.prediction =
		tim.coding = tim.overall = 0;
}

void
start_global_timer()
{
	tim.global = read_counter();
}

void
stop_dct_timer()
{
	tim.dct += (read_counter() - tim.current-tim.cost);
}

void
stop_idct_timer()
{
	tim.idct += (read_counter() - tim.current-tim.cost);
}

void
stop_quant_timer()
{
	tim.quant += (read_counter() - tim.current-tim.cost);
}

void
stop_iquant_timer()
{
	tim.iquant += (read_counter() - tim.current-tim.cost);
}

void
stop_motion_timer()
{
	tim.motion += (read_counter() - tim.current-tim.cost);
}

void
stop_comp_timer()
{
	tim.comp += (read_counter() - tim.current-tim.cost);
}

void
stop_edges_timer()
{
	tim.edges += (read_counter() - tim.current-tim.cost);
}

void
stop_inter_timer()
{
	tim.inter += (read_counter() - tim.current-tim.cost);
}

void
stop_conv_timer()
{
	tim.conv += (read_counter() - tim.current-tim.cost);
}

void
stop_transfer_timer()
{
	tim.trans += (read_counter() - tim.current-tim.cost);
}

void
stop_prediction_timer()
{
	tim.prediction += (read_counter() - tim.current-tim.cost);
}

void
stop_coding_timer()
{
	tim.coding += (read_counter() - tim.current-tim.cost);
}

void
stop_interlacing_timer()
{
	tim.interlacing += (read_counter() - tim.current - tim.cost);
}

void
stop_global_timer()
{
	tim.overall += (read_counter() - tim.global - tim.cost );
}
#endif

/*
    write log file with some timer information
*/
#ifndef _TRIMEDIA
int64_t pre_time=0;
#endif

void
write_timer()
{
	float dct_per, quant_per, idct_per, iquant_per, mot_per, comp_per,
		interlacing_per;
	float edges_per, inter_per, conv_per, trans_per, pred_per, cod_per,
		measured;
	float sum_ticks = 0;

#ifdef _TRIMEDIA        
    float frequency = 200000;/* 200 MHz*/
#else
/*	printf("time_motion= %d ms \n",(int)((tim.motion-pre_time)/frequency));
	pre_time=tim.motion;*/
#endif

	count_frames++;
	/* only write log file every 50 processed frames */
	if (!(count_frames % 50)) {
		FILE *fp;

		fp = fopen("encoder.log", "a");

		dct_per =
			(float) (((float) ((float) tim.dct / (float) tim.overall)) *
					 100.0);
		quant_per =
			(float) (((float) ((float) tim.quant / (float) tim.overall)) *
					 100.0);
		idct_per =
			(float) (((float) ((float) tim.idct / (float) tim.overall)) *
					 100.0);
		iquant_per =
			(float) (((float) ((float) tim.iquant / (float) tim.overall)) *
					 100.0);
		mot_per =
			(float) (((float) ((float) tim.motion / (float) tim.overall)) *
					 100.0);
		comp_per =
			(float) (((float) ((float) tim.comp / (float) tim.overall)) *
					 100.0);
		edges_per =
			(float) (((float) ((float) tim.edges / (float) tim.overall)) *
					 100.0);
		inter_per =
			(float) (((float) ((float) tim.inter / (float) tim.overall)) *
					 100.0);
		conv_per =
			(float) (((float) ((float) tim.conv / (float) tim.overall)) *
					 100.0);
		trans_per =
			(float) (((float) ((float) tim.trans / (float) tim.overall)) *
					 100.0);
		pred_per =
			(float) (((float) ((float) tim.prediction / (float) tim.overall)) *
					 100.0);
		cod_per =
			(float) (((float) ((float) tim.coding / (float) tim.overall)) *
					 100.0);
		interlacing_per =
			(float) (((float) ((float) tim.interlacing / (float) tim.overall))
					 * 100.0);

		sum_ticks =
			(float)(tim.coding + tim.conv + tim.dct + tim.idct + tim.interlacing +
			tim.edges + tim.inter + tim.iquant + tim.motion + tim.prediction +
			tim.quant + tim.trans + tim.comp);

		measured =
			(float) (((float) ((float) sum_ticks / (float) tim.overall)) *
					 100.0);

                fprintf(fp,"cpu frequency is %f KHz \n",frequency);
                fprintf(fp,"once 50frame output once infroamtion:\n");
				fprintf(fp,"call time function cost is %ld cycles \n",tim.cost);
		fprintf(fp,
				"DCT:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Quant:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"IDCT:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"IQuant:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Mot estimation:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Mot compensation:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Edges:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Interpolation:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"RGB2YUV:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Transfer:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Prediction:\nTotal time: %f ms (%3f percent of total encoding time)\n\n"
				"Coding:\nTotal time: %f ms (%3f percent of total encoding time)\n\n\n"
				"Interlacing:\nTotal time: %f ms (%3f percent of total encoding time)\n\n\n"
				"Overall encoding time: %f ms, we measured %f ms (%3f percent)\n",
				(float) (tim.dct / frequency), dct_per,
				(float) (tim.quant / frequency), quant_per,
				(float) (tim.idct / frequency), idct_per,
				(float) (tim.iquant / frequency), iquant_per,
				(float) (tim.motion / frequency), mot_per,
				(float) (tim.comp / frequency), comp_per,
				(float) (tim.edges / frequency), edges_per,
				(float) (tim.inter / frequency), inter_per,
				(float) (tim.conv / frequency), conv_per,
				(float) (tim.trans / frequency), trans_per,
				(float) (tim.prediction / frequency), pred_per,
				(float) (tim.coding / frequency), cod_per,
				(float) (tim.interlacing / frequency), interlacing_per,
				(float) (tim.overall / frequency),
				(float) (sum_ticks / frequency), measured);

		fclose(fp);
	}
}       
#endif