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#include "libmpeg3.h"
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
int main(int argc, char *argv[])
{
mpeg3_t *file;
int x,y,ii,i,j,result,out;
int howmany;
unsigned char *output, **output_rows;
char filename[100];
char header[100];
char temp;
howmany = atoi (argv[2]);
if ((file = mpeg3_open(argv[1])) == NULL)
{
printf ("Open failed\n");
return 1;
}
mpeg3_set_cpus(file,1);
mpeg3_set_mmx(file,0);
if (mpeg3_has_video == 0)
{
printf ("Stream has no Video\n");
return 1;
}
x = mpeg3_video_width(file,0);
y = mpeg3_video_height(file, 0);
output = malloc (x*y*3 + 4);
output_rows = malloc (sizeof(unsigned char*) * y);
for(i = 0; i < y; i++)
output_rows[i] = &output[i * x * 3];
for (ii = 0; ii < howmany; ii++)
{
result = mpeg3_read_frame(file,output_rows,0,0,x,y,x,y,0,0);
sprintf (filename,"/x2/temp/output%03i.ppm",ii);
sprintf (header,"P6\n%i %i\n255\n\r",x,y);
/* printf ("Opening %s\n",filename); */
if ((out = open (filename,O_CREAT|O_WRONLY|O_TRUNC,0755)) == -1)
{
printf ("Can't open %s\n",filename);
return 1;
}
write (out,header,strlen(header));
for (i = 0; i < y; i++)
for (j = 0; j < x; j++)
{
temp = output [(i*x+j)*3 + 1];
output[(i*x+j)*3 + 1] = output [(i*x+j)*3 + 0];
output[(i*x+j)*3 + 0] = temp;
}
write (out, output, x*y*3);
close (out);
}
}
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