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/************************************************************************** |
/***************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC - Example for encoding and decoding |
* XVID MPEG-4 VIDEO CODEC |
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* - Console based decoding test application - |
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* |
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* Copyright(C) 2002 Christoph Lampert |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
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* |
* |
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* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* $Id: xvid_decraw.c,v 1.1.2.2 2003-01-13 00:37:20 edgomez Exp $ |
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* |
* |
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*************************************************************************/ |
****************************************************************************/ |
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/************************************************************************ |
/***************************************************************************** |
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* |
* |
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* Test routine for XviD decoding |
* Application notes : |
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* (C) Christoph Lampert, 2002/08/17 |
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* |
* |
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* An MPEG-4 bitstream is read from stdin and decoded, |
* An MPEG-4 bitstream is read from an input file (or stdin) and decoded, |
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* the speed for this is measured |
* the speed for this is measured. |
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* |
* |
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* The program is plain C and needs no libraries except for libxvidcore, |
* The program is plain C and needs no libraries except for libxvidcore, |
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* and maths-lib, so with UN*X you simply compile by |
* and maths-lib, so with UN*X you simply compile by |
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* You have to specify the image dimensions (until the add the feature |
* You have to specify the image dimensions (until the add the feature |
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* to read this from the bitstream) |
* to read this from the bitstream) |
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* |
* |
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* Parameters are: xvid_stat XDIM YDIM |
* Usage : xvid_decraw <-w width> <-h height> [OPTIONS] |
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* Options : |
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* -asm : use assembly optimizations (default=disabled) |
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* -w integer : frame width ([1.2048]) |
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* -h integer : frame height ([1.2048]) |
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* -i string : input filename (default=stdin) |
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* -t integer : input data type (raw=0, mp4u=1) |
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* -d boolean : save decoder output (0 False*, !=0 True) |
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* -m boolean : save mpeg4 raw stream to single files (0 False*, !=0 True) |
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* -help : This help message |
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* (* means default) |
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* |
* |
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* output and indivual m4v-files are saved, if corresponding flags are set |
****************************************************************************/ |
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* |
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************************************************************************/ |
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#include <stdio.h> |
#include <stdio.h> |
56 |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <math.h> // needed for log10 |
#include <string.h> |
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#include <sys/time.h> // only needed for gettimeofday |
#include <math.h> |
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#ifndef _MSC_VER |
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#include <sys/time.h> |
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#else |
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#include <time.h> |
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#endif |
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#include "../src/xvid.h" /* comes with XviD */ |
#include "xvid.h" |
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#define ABS_MAXFRAMENR 9999 // max number of frames |
/***************************************************************************** |
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* Global vars in module and constants |
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****************************************************************************/ |
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71 |
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/* max number of frames */ |
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#define ABS_MAXFRAMENR 9999 |
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74 |
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static int XDIM = 0; |
75 |
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static int YDIM = 0; |
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static int ARG_SAVEDECOUTPUT = 0; |
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static int ARG_SAVEMPEGSTREAM = 0; |
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static int ARG_STREAMTYPE = 0; |
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static char *ARG_INPUTFILE = NULL; |
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82 |
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static char filepath[256] = "./"; |
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static void *dec_handle = NULL; |
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# define BUFFER_SIZE 10*XDIM*YDIM |
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#define LONG_PACK(a,b,c,d) ((long) (((long)(a))<<24) | (((long)(b))<<16) | \ |
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(((long)(c))<<8) |((long)(d))) |
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#define SWAP(a) ( (((a)&0x000000ff)<<24) | (((a)&0x0000ff00)<<8) | \ |
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(((a)&0x00ff0000)>>8) | (((a)&0xff000000)>>24) ) |
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/***************************************************************************** |
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* Local prototypes |
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****************************************************************************/ |
96 |
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static double msecond(); |
98 |
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static int write_pgm(char *filename, |
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unsigned char *image); |
100 |
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static int dec_init(int use_assembler); |
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static int dec_main(unsigned char *istream, |
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unsigned char *ostream, |
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int istream_size, |
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int *ostream_size); |
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static int dec_stop(); |
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static void usage(); |
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/***************************************************************************** |
109 |
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* Main program |
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****************************************************************************/ |
111 |
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int XDIM=720; |
int main(int argc, char *argv[]) |
113 |
int YDIM=576; |
{ |
114 |
int i,filenr = 0; |
unsigned char *mp4_buffer = NULL; |
115 |
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unsigned char *mp4_ptr = NULL; |
116 |
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unsigned char *out_buffer = NULL; |
117 |
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int bigendian = 0; |
118 |
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int still_left_in_packet; |
119 |
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120 |
int save_dec_flag = 1; // save decompressed bytestream? |
double totaldectime; |
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int save_m4v_flag = 0; // save bytestream itself? |
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char filepath[256] = "./"; // the path where to save output |
long totalsize; |
123 |
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int status; |
124 |
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void *dec_handle = NULL; // handle for decoding |
int use_assembler = 0; |
126 |
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/*********************************************************************/ |
char filename[256]; |
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/* "statistical" functions */ |
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/* */ |
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/* these are not needed for decoding itself, but for measuring */ |
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/* time (and maybe later quality), there in nothing specific to */ |
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/* XviD in these */ |
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/* */ |
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/*********************************************************************/ |
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128 |
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double msecond() |
FILE *in_file; |
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/* return the current time in seconds(!) */ |
int filenr; |
131 |
{ |
int i; |
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struct timeval tv; |
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gettimeofday(&tv, 0); |
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return tv.tv_sec + tv.tv_usec * 1.0e-6; |
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} |
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132 |
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133 |
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printf("xvid_decraw - raw mpeg4 bitstream decoder "); |
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printf("written by Christoph Lampert 2002\n\n"); |
135 |
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/*********************************************************************/ |
/***************************************************************************** |
137 |
/* input and output functions */ |
* Command line parsing |
138 |
/* */ |
****************************************************************************/ |
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/* the are small and simple routines for writing image */ |
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/* image. It's just for convenience, again nothing specific to XviD */ |
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/* */ |
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/*********************************************************************/ |
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int write_pgm(char *filename, unsigned char *image) |
for (i=1; i< argc; i++) { |
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{ |
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FILE *filehandle; |
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filehandle=fopen(filename,"wb"); |
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if (filehandle) |
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{ |
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fprintf(filehandle,"P5\n\n"); // |
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fprintf(filehandle,"%d %d 255\n",XDIM,YDIM*3/2); |
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fwrite(image,XDIM,YDIM*3/2,filehandle); |
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141 |
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fclose(filehandle); |
if (strcmp("-asm", argv[i]) == 0 ) { |
143 |
return 0; |
use_assembler = 1; |
144 |
} |
} |
145 |
else |
else if (strcmp("-w", argv[i]) == 0 && i < argc - 1 ) { |
146 |
return 1; |
i++; |
147 |
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XDIM = atoi(argv[i]); |
148 |
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} |
149 |
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else if (strcmp("-h", argv[i]) == 0 && i < argc - 1 ) { |
150 |
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i++; |
151 |
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YDIM = atoi(argv[i]); |
152 |
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} |
153 |
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else if (strcmp("-d", argv[i]) == 0 && i < argc - 1 ) { |
154 |
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i++; |
155 |
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ARG_SAVEDECOUTPUT = atoi(argv[i]); |
156 |
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} |
157 |
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else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { |
158 |
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i++; |
159 |
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ARG_INPUTFILE = argv[i]; |
160 |
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} |
161 |
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else if (strcmp("-m", argv[i]) == 0 && i < argc - 1 ) { |
162 |
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i++; |
163 |
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ARG_SAVEMPEGSTREAM = atoi(argv[i]); |
164 |
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} |
165 |
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else if (strcmp("-t", argv[i]) == 0 && i < argc - 1 ) { |
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i++; |
167 |
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ARG_STREAMTYPE = atoi(argv[i]); |
168 |
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} |
169 |
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else if (strcmp("-help", argv[i])) { |
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usage(); |
171 |
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return(0); |
172 |
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} |
173 |
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else { |
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usage(); |
175 |
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exit(-1); |
176 |
} |
} |
177 |
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178 |
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} |
179 |
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int write_ppm(char *filename, unsigned char *image) |
/***************************************************************************** |
181 |
{ |
* Values checking |
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FILE *filehandle; |
****************************************************************************/ |
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filehandle=fopen(filename,"wb"); |
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if (filehandle) |
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{ |
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fprintf(filehandle,"P6\n\n"); // |
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fprintf(filehandle,"%d %d 255\n",XDIM,YDIM); |
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fwrite(image,XDIM,YDIM*3,filehandle); |
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fclose(filehandle); |
if(XDIM <= 0 || XDIM > 2048 || YDIM <= 0 || YDIM > 2048) { |
185 |
return 0; |
usage(); |
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return -1; |
187 |
} |
} |
188 |
else |
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return 1; |
if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { |
190 |
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in_file = stdin; |
191 |
} |
} |
192 |
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else { |
193 |
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/*********************************************************************/ |
in_file = fopen(ARG_INPUTFILE, "rb"); |
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/* Routines for decoding: init encoder, frame step, release encoder */ |
if (in_file == NULL) { |
196 |
/*********************************************************************/ |
fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); |
197 |
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return -1; |
198 |
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} |
199 |
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} |
200 |
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201 |
int dec_init(int use_assembler) /* init decoder before first run */ |
/***************************************************************************** |
202 |
{ |
* Memory allocation |
203 |
int xerr; |
****************************************************************************/ |
204 |
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XVID_INIT_PARAM xinit; |
/* Memory for encoded mp4 stream */ |
206 |
XVID_DEC_PARAM xparam; |
mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); |
207 |
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mp4_ptr = mp4_buffer; |
208 |
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if (!mp4_buffer) |
209 |
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goto free_all_memory; |
210 |
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211 |
if(use_assembler) |
/* Memory for frame output */ |
212 |
#ifdef ARCH_IA64 |
out_buffer = (unsigned char *) malloc(XDIM*YDIM*4); |
213 |
xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
if (!out_buffer) |
214 |
#else |
goto free_all_memory; |
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xinit.cpu_flags = 0; |
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#endif |
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else |
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xinit.cpu_flags = XVID_CPU_FORCE; |
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215 |
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xvid_init(NULL, 0, &xinit, NULL); |
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xparam.width = XDIM; |
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xparam.height = YDIM; |
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216 |
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xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); |
/***************************************************************************** |
218 |
dec_handle = xparam.handle; |
* XviD PART Start |
219 |
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****************************************************************************/ |
220 |
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221 |
return xerr; |
status = dec_init(use_assembler); |
222 |
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if (status) { |
223 |
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fprintf(stderr, |
224 |
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"Decore INIT problem, return value %d\n", status); |
225 |
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goto release_all; |
226 |
} |
} |
227 |
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int dec_main(unsigned char *m4v_buffer, unsigned char *out_buffer,int *m4v_size) |
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{ /* decode one frame */ |
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228 |
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229 |
int xerr; |
/***************************************************************************** |
230 |
XVID_DEC_FRAME xframe; |
* Main loop |
231 |
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****************************************************************************/ |
232 |
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233 |
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totalsize = LONG_PACK('M','P','4','U'); |
234 |
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mp4_ptr = (unsigned char *)&totalsize; |
235 |
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if(*mp4_ptr == 'M') |
236 |
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bigendian = 1; |
237 |
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else |
238 |
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bigendian = 0; |
239 |
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240 |
xframe.bitstream = m4v_buffer; |
if(ARG_STREAMTYPE) { |
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xframe.length = 9999; |
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xframe.image = out_buffer; |
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xframe.stride = XDIM; |
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xframe.colorspace = XVID_CSP_YV12; |
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241 |
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242 |
do { |
unsigned char header[4]; |
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xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
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243 |
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244 |
*m4v_size = xframe.length; |
/* MP4U format : read header */ |
245 |
xframe.bitstream += *m4v_size; |
if(feof(in_file)) |
246 |
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goto release_all; |
247 |
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fread(header, 4, 1, in_file); |
248 |
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249 |
} while (*m4v_size<7); /* this skips N-VOPs */ |
if(header[0] != 'M' || header[1] != 'P' || |
250 |
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header[2] != '4' || header[3] != 'U') { |
251 |
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fprintf(stderr, "Error, this not a mp4u container file\n"); |
252 |
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goto release_all; |
253 |
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} |
254 |
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255 |
return xerr; |
} |
256 |
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else { |
257 |
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fread(mp4_buffer, BUFFER_SIZE, 1, in_file); |
258 |
} |
} |
259 |
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260 |
int dec_stop() /* close decoder to release resources */ |
totaldectime = 0; |
261 |
{ |
totalsize = 0; |
262 |
int xerr; |
filenr = 0; |
263 |
xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
still_left_in_packet = 0; |
264 |
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mp4_ptr = mp4_buffer; |
265 |
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|
266 |
return xerr; |
do { |
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} |
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267 |
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268 |
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int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); |
269 |
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int used_bytes = 0; |
270 |
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double dectime; |
271 |
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272 |
/*********************************************************************/ |
/* Read data from input file */ |
273 |
/* Main program */ |
if(ARG_STREAMTYPE ) { |
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/*********************************************************************/ |
|
274 |
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|
275 |
int main(int argc, char *argv[]) |
/* |
276 |
{ |
* MP4U container |
277 |
unsigned char *divx_buffer = NULL; |
* |
278 |
unsigned char *divx_ptr = NULL; |
* When dealing with mp4u, we have to take care about PBB...B packets |
279 |
unsigned char *out_buffer = NULL; |
* generated with some XviD options. |
280 |
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* |
281 |
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* We use the still_left_in_packet variable to keep trace of how many |
282 |
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* bytes we loaded at a time. |
283 |
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*/ |
284 |
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285 |
double dectime; |
/* Still real frames in loaded packet ? */ |
286 |
double totaldectime=0.; |
if(still_left_in_packet < 7) { |
287 |
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|
288 |
long totalsize=0; |
/* Read stream size first */ |
289 |
int status; |
if(feof(in_file)) |
290 |
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break; |
291 |
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fread(&still_left_in_packet, sizeof(long), 1, in_file); |
292 |
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293 |
int m4v_size; |
/* Mp4U container is big endian */ |
294 |
int frame_type[ABS_MAXFRAMENR]; |
if(!bigendian) |
295 |
int use_assembler=1; |
mp4_size = SWAP(still_left_in_packet); |
296 |
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|
297 |
char filename[256]; |
/* Read mp4_size_bytes */ |
298 |
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if(feof(in_file)) |
299 |
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break; |
300 |
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fread(mp4_buffer, still_left_in_packet, 1, in_file); |
301 |
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302 |
FILE *filehandle; |
/* |
303 |
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* When reading mp4u, we don't have to care about buffer |
304 |
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* filling as we know exactly how much bytes there are in |
305 |
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* next frame |
306 |
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*/ |
307 |
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mp4_ptr = mp4_buffer; |
308 |
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if (argc>=3) |
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{ XDIM = atoi(argv[1]); |
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YDIM = atoi(argv[2]); |
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if ( (XDIM <= 0) || (XDIM >= 2048) || (YDIM <=0) || (YDIM >= 2048) ) |
|
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{ fprintf(stderr,"Wrong frames size %d %d, trying PGM \n",XDIM, YDIM); |
|
309 |
} |
} |
310 |
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|
311 |
} |
} |
312 |
if (argc>=4 && !strcmp(argv[3],"noasm")) |
else { |
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use_assembler = 0; |
|
313 |
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314 |
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/* |
315 |
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* Real raw stream |
316 |
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* |
317 |
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* In raw stream mode,we don't have to care how many bytes there're |
318 |
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* still in packet because we simply let the decore decode frames |
319 |
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* without taking care of buffer overruns or underruns. |
320 |
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* |
321 |
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*/ |
322 |
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still_left_in_packet = 0; |
323 |
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|
324 |
/* allocate memory */ |
/* buffer more than half empty -> Fill it */ |
325 |
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if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2) { |
326 |
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int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); |
327 |
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|
328 |
divx_buffer = (unsigned char *) malloc(10*XDIM*YDIM); |
/* Move data if needed */ |
329 |
// this should really be enough memory! |
if (rest) |
330 |
if (!divx_buffer) |
memcpy(mp4_buffer, mp4_ptr, rest); |
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goto free_all_memory; |
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divx_ptr = divx_buffer+10*XDIM*YDIM; |
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331 |
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332 |
out_buffer = (unsigned char *) malloc(4*XDIM*YDIM); /* YUV needs less */ |
/* Update mp4_ptr */ |
333 |
if (!out_buffer) |
mp4_ptr = mp4_buffer; |
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goto free_all_memory; |
|
334 |
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335 |
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/* read new data */ |
336 |
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if(feof(in_file)) |
337 |
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break; |
338 |
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339 |
/*********************************************************************/ |
fread(mp4_buffer + rest, BUFFER_SIZE - rest, 1, in_file); |
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/* XviD PART Start */ |
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/*********************************************************************/ |
|
340 |
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status = dec_init(use_assembler); |
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if (status) |
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{ |
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printf("Decore INIT problem, return value %d\n", status); |
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goto release_all; |
|
341 |
} |
} |
342 |
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343 |
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} |
344 |
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|
345 |
/*********************************************************************/ |
/* The do loop is just to flush NVOPS */ |
346 |
/* Main loop */ |
do { |
|
/*********************************************************************/ |
|
347 |
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|
348 |
do |
/* Decode frame */ |
349 |
{ |
dectime = msecond(); |
350 |
|
status = dec_main(mp4_ptr, out_buffer, mp4_size, &used_bytes); |
351 |
|
dectime = msecond() - dectime; |
352 |
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353 |
if (divx_ptr > divx_buffer+5*XDIM*YDIM) /* buffer more than half empty */ |
if (status) { |
354 |
{ int rest=(divx_buffer+10*XDIM*YDIM-divx_ptr); |
break; |
|
if (rest) |
|
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memcpy(divx_buffer, divx_ptr, rest); |
|
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divx_ptr = divx_buffer; |
|
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fread(divx_buffer+rest, 1, 5*XDIM*YDIM, stdin); /* read new data */ |
|
355 |
} |
} |
356 |
|
|
357 |
dectime = -msecond(); |
/* |
358 |
status = dec_main(divx_ptr, out_buffer, &m4v_size); |
* Only needed for real raw stream, mp4u uses |
359 |
|
* mp4_ptr = mp4_buffer for each frame |
360 |
|
*/ |
361 |
|
mp4_ptr += used_bytes; |
362 |
|
still_left_in_packet -= used_bytes; |
363 |
|
|
364 |
if (status) |
/* Total size */ |
365 |
{ |
totalsize += used_bytes; |
|
break; |
|
|
} |
|
|
dectime += msecond(); |
|
|
divx_ptr += m4v_size; |
|
366 |
|
|
367 |
totalsize += m4v_size; |
}while(used_bytes <= 7); /* <= 7 bytes is a NVOPS */ |
368 |
|
|
369 |
|
/* Updated data - Count only usefull decode time */ |
370 |
|
totaldectime += dectime; |
371 |
|
|
372 |
|
/* Prints some decoding stats */ |
373 |
printf("Frame %5d: dectime =%6.1f ms length=%7d bytes \n", |
printf("Frame %5d: dectime =%6.1f ms length=%7d bytes \n", |
374 |
filenr, dectime*1000, m4v_size); |
filenr, dectime, used_bytes); |
375 |
|
|
376 |
|
/* Save individual mpeg4 stream if required */ |
377 |
|
if (ARG_SAVEMPEGSTREAM) { |
378 |
|
FILE *filehandle = NULL; |
379 |
|
|
|
if (save_m4v_flag) |
|
|
{ |
|
380 |
sprintf(filename, "%sframe%05d.m4v", filepath, filenr); |
sprintf(filename, "%sframe%05d.m4v", filepath, filenr); |
381 |
filehandle = fopen(filename, "wb"); |
filehandle = fopen(filename, "wb"); |
382 |
fwrite(divx_buffer, m4v_size, 1, filehandle); |
if(!filehandle) { |
383 |
|
fprintf(stderr, |
384 |
|
"Error writing single mpeg4 stream to file %s\n", |
385 |
|
filename); |
386 |
|
} |
387 |
|
else { |
388 |
|
fwrite(mp4_buffer, used_bytes, 1, filehandle); |
389 |
fclose(filehandle); |
fclose(filehandle); |
390 |
} |
} |
391 |
totaldectime += dectime; |
} |
|
|
|
|
|
|
|
/*********************************************************************/ |
|
|
/* analyse the decoded frame and compare to original */ |
|
|
/*********************************************************************/ |
|
392 |
|
|
393 |
if (save_dec_flag) |
/* Save output frame if required */ |
394 |
{ |
if (ARG_SAVEDECOUTPUT) { |
395 |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
sprintf(filename, "%sdec%05d.pgm", filepath, filenr); |
396 |
write_pgm(filename,out_buffer); |
if(write_pgm(filename,out_buffer)) { |
397 |
|
fprintf(stderr, |
398 |
|
"Error writing decoded PGM frame %s\n", |
399 |
|
filename); |
400 |
|
} |
401 |
} |
} |
402 |
|
|
403 |
filenr++; |
filenr++; |
405 |
} while ( (status>=0) && (filenr<ABS_MAXFRAMENR) ); |
} while ( (status>=0) && (filenr<ABS_MAXFRAMENR) ); |
406 |
|
|
407 |
|
|
408 |
/*********************************************************************/ |
/***************************************************************************** |
409 |
/* calculate totals and averages for output, print results */ |
* Calculate totals and averages for output, print results |
410 |
/*********************************************************************/ |
****************************************************************************/ |
411 |
|
|
412 |
totalsize /= filenr; |
totalsize /= filenr; |
413 |
totaldectime /= filenr; |
totaldectime /= filenr; |
414 |
|
|
415 |
fprintf(stderr,"Avg: dectime %5.2f ms, %5.2f fps, filesize =%d\n", |
printf("Avg: dectime %5.2f ms, %5.2f fps, mp4 stream size =%d\n", |
416 |
1000*totaldectime, 1./totaldectime, totalsize); |
totaldectime, 1000/totaldectime, (int)totalsize); |
417 |
|
|
418 |
/*********************************************************************/ |
/***************************************************************************** |
419 |
/* XviD PART Stop */ |
* XviD PART Stop |
420 |
/*********************************************************************/ |
****************************************************************************/ |
421 |
|
|
422 |
release_all: |
release_all: |
423 |
|
if (dec_handle) { |
|
if (dec_handle) |
|
|
{ |
|
424 |
status = dec_stop(); |
status = dec_stop(); |
425 |
if (status) |
if (status) |
426 |
printf("Decore RELEASE problem return value %d\n", status); |
fprintf(stderr, "decore RELEASE problem return value %d\n", status); |
427 |
} |
} |
428 |
|
|
429 |
free_all_memory: |
free_all_memory: |
430 |
free(out_buffer); |
free(out_buffer); |
431 |
free(divx_buffer); |
free(mp4_buffer); |
432 |
|
|
433 |
|
return 0; |
434 |
|
} |
435 |
|
|
436 |
|
/***************************************************************************** |
437 |
|
* Usage function |
438 |
|
****************************************************************************/ |
439 |
|
|
440 |
|
static void usage() |
441 |
|
{ |
442 |
|
|
443 |
|
fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); |
444 |
|
fprintf(stderr, "Options :\n"); |
445 |
|
fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); |
446 |
|
fprintf(stderr, " -w integer : frame width ([1.2048])\n"); |
447 |
|
fprintf(stderr, " -h integer : frame height ([1.2048])\n"); |
448 |
|
fprintf(stderr, " -i string : input filename (default=stdin)\n"); |
449 |
|
fprintf(stderr, " -t integer : input data type (raw=0, mp4u=1)\n"); |
450 |
|
fprintf(stderr, " -d boolean : save decoder output (0 False*, !=0 True)\n"); |
451 |
|
fprintf(stderr, " -m boolean : save mpeg4 raw stream to individual files (0 False*, !=0 True)\n"); |
452 |
|
fprintf(stderr, " -help : This help message\n"); |
453 |
|
fprintf(stderr, " (* means default)\n"); |
454 |
|
|
455 |
|
} |
456 |
|
|
457 |
|
/***************************************************************************** |
458 |
|
* "helper" functions |
459 |
|
****************************************************************************/ |
460 |
|
|
461 |
|
/* return the current time in milli seconds */ |
462 |
|
static double |
463 |
|
msecond() |
464 |
|
{ |
465 |
|
#ifndef _MSC_VER |
466 |
|
struct timeval tv; |
467 |
|
gettimeofday(&tv, 0); |
468 |
|
return (double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3; |
469 |
|
#else |
470 |
|
clock_t clk; |
471 |
|
clk = clock(); |
472 |
|
return clk * 1000 / CLOCKS_PER_SEC; |
473 |
|
#endif |
474 |
|
} |
475 |
|
|
476 |
|
/***************************************************************************** |
477 |
|
* output functions |
478 |
|
****************************************************************************/ |
479 |
|
|
480 |
|
static int |
481 |
|
write_pgm(char *filename, |
482 |
|
unsigned char *image) |
483 |
|
{ |
484 |
|
int loop; |
485 |
|
|
486 |
|
unsigned char *y = image; |
487 |
|
unsigned char *u = image + XDIM*YDIM; |
488 |
|
unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; |
489 |
|
|
490 |
|
FILE *filehandle; |
491 |
|
filehandle=fopen(filename,"w+b"); |
492 |
|
if (filehandle) { |
493 |
|
|
494 |
|
/* Write header */ |
495 |
|
fprintf(filehandle,"P5\n\n%d %d 255\n", XDIM,YDIM*3/2); |
496 |
|
|
497 |
|
/* Write Y data */ |
498 |
|
fwrite(y, 1, XDIM*YDIM, filehandle); |
499 |
|
|
500 |
|
for(loop=0; loop<YDIM/2; loop++) |
501 |
|
{ |
502 |
|
/* Write U scanline */ |
503 |
|
fwrite(u, 1, XDIM/2, filehandle); |
504 |
|
|
505 |
|
/* Write V scanline */ |
506 |
|
fwrite(v, 1, XDIM/2, filehandle); |
507 |
|
|
508 |
|
/* Update pointers */ |
509 |
|
u += XDIM/2; |
510 |
|
v += XDIM/2; |
511 |
|
|
512 |
|
} |
513 |
|
|
514 |
|
/* Close file */ |
515 |
|
fclose(filehandle); |
516 |
|
|
517 |
return 0; |
return 0; |
518 |
} |
} |
519 |
|
else |
520 |
|
return 1; |
521 |
|
} |
522 |
|
|
523 |
|
/***************************************************************************** |
524 |
|
* Routines for decoding: init decoder, use, and stop decoder |
525 |
|
****************************************************************************/ |
526 |
|
|
527 |
|
/* init decoder before first run */ |
528 |
|
static int |
529 |
|
dec_init(int use_assembler) |
530 |
|
{ |
531 |
|
int xerr; |
532 |
|
|
533 |
|
XVID_INIT_PARAM xinit; |
534 |
|
XVID_DEC_PARAM xparam; |
535 |
|
|
536 |
|
if(use_assembler) |
537 |
|
#ifdef ARCH_IA64 |
538 |
|
xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
539 |
|
#else |
540 |
|
xinit.cpu_flags = 0; |
541 |
|
#endif |
542 |
|
else |
543 |
|
xinit.cpu_flags = XVID_CPU_FORCE; |
544 |
|
|
545 |
|
xvid_init(NULL, 0, &xinit, NULL); |
546 |
|
xparam.width = XDIM; |
547 |
|
xparam.height = YDIM; |
548 |
|
|
549 |
|
xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); |
550 |
|
|
551 |
|
dec_handle = xparam.handle; |
552 |
|
|
553 |
|
return xerr; |
554 |
|
} |
555 |
|
|
556 |
|
/* decode one frame */ |
557 |
|
static int |
558 |
|
dec_main(unsigned char *istream, |
559 |
|
unsigned char *ostream, |
560 |
|
int istream_size, |
561 |
|
int *ostream_size) |
562 |
|
{ |
563 |
|
|
564 |
|
int xerr; |
565 |
|
XVID_DEC_FRAME xframe; |
566 |
|
|
567 |
|
xframe.bitstream = istream; |
568 |
|
xframe.length = istream_size; |
569 |
|
xframe.image = ostream; |
570 |
|
xframe.stride = XDIM; |
571 |
|
xframe.colorspace = XVID_CSP_YV12; |
572 |
|
|
573 |
|
xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
574 |
|
|
575 |
|
*ostream_size = xframe.length; |
576 |
|
|
577 |
|
return xerr; |
578 |
|
} |
579 |
|
|
580 |
|
/* close decoder to release resources */ |
581 |
|
static int |
582 |
|
dec_stop() |
583 |
|
{ |
584 |
|
int xerr; |
585 |
|
|
586 |
|
xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
587 |
|
|
588 |
|
return xerr; |
589 |
|
} |