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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
int main(int argc, char** argv)
{
unsigned int maxframe, frame=0;
int width, height, i;
char *infile;
char fname[256], clipname[256], strname[256], junk[256];
FILE *par, *ppm;
int outfile=0, temp;
unsigned char r, g, b;
if(argc!=3)
{
fprintf(stderr, "Usage:\n\n");
fprintf(stderr, " ppm2str <filename> <maxfrrame>\n");
fprintf(stderr, " eg: ppm2str caption:%%06d 500\n\n");
exit(0);
}
infile=argv[1];
sprintf(strname, "%s", infile);
strname[strcspn(infile, ":")]='\0';
sprintf(clipname, "%s:cliptab", strname);
maxframe=atoi(argv[2]);
maxframe*=2;
while(frame<=maxframe)
{
sprintf(junk, infile, (int)frame>>1);
sprintf(fname, "%s.ppm", junk);
fprintf(stderr, "%s\n", fname);
ppm=fopen(fname, "r");
if(ppm)
{
fgets(junk, 256, ppm);
fgets(junk, 256, ppm);
while(junk[0]=='#')fgets(junk, 256, ppm);
sscanf(junk, "%d %d", &width, &height);
fgets(junk, 256, ppm);
if(outfile==0)
{
outfile=open(strname, O_RDWR|O_TRUNC|O_CREAT, S_IRUSR|S_IWUSR);
if(outfile<=0)
{
perror("open video file");
exit(-1);
}
write(outfile, &width, sizeof(width));
write(outfile, &height, sizeof(height));
write(outfile, &maxframe, sizeof(maxframe));
}
write(outfile, &frame, sizeof(frame));
for(i=0; i<(width*height); i++)
{
fread(&r, 1, 1, ppm);
fread(&g, 1, 1, ppm);
fread(&b, 1, 1, ppm);
temp = (int)((int)b >> 3);
temp |= (int)(((int)g >> 2) << 5);
temp |= (int)(((int)r >> 3) << 11);
r=(unsigned char)temp&0xff;
g=(unsigned char)(temp>>8);
write(outfile, &r, 1);
write(outfile, &g, 1);
}
}
frame+=2;
}
maxframe/=2;
fprintf(stderr, "Writing str2mpeg.par\n");
par=fopen("str2ppm.par","w");
fprintf(par, "MPEG-1 Test Sequence, 25 frames/sec\n");
fprintf(par, "%s\n", infile);
fprintf(par, "-\n");
fprintf(par, "-\n");
fprintf(par, "-\n");
fprintf(par, "-\n");
fprintf(par, "3\n");
fprintf(par, "%u\n", maxframe+1);
fprintf(par, "0\n");
fprintf(par, "00:00:00:00\n");
fprintf(par, "12\n");
fprintf(par, "3\n");
fprintf(par, "1\n");
fprintf(par, "0\n");
fprintf(par, "%d\n", width);
fprintf(par, "%d\n", height);
fprintf(par, "8\n");
#ifdef NTSC
fprintf(par, "5\n"); /* NTSC 30fps */
#else
fprintf(par, "3\n"); /* PAL 25fps */
#endif
fprintf(par, "%f\n", (float)width*height*12);
fprintf(par, "20\n");
fprintf(par, "0\n");
fprintf(par, "1\n");
fprintf(par, "4\n");
fprintf(par, "8\n");
fprintf(par, "1\n");
fprintf(par, "1\n");
fprintf(par, "1\n");
fprintf(par, "5\n");
fprintf(par, "5\n");
fprintf(par, "5\n");
fprintf(par, "%d\n", width);
fprintf(par, "%d\n", height);
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "1 1 1\n");
fprintf(par, "0 0 0\n");
fprintf(par, "0 0 0\n");
fprintf(par, "0 0 0\n");
fprintf(par, "0 0 0\n");
fprintf(par, "0\n");
fprintf(par, "1\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "0\n");
fprintf(par, "2 2 11 11\n");
fprintf(par, "1 1 3 3\n");
fprintf(par, "1 1 7 7\n");
fprintf(par, "1 1 7 7\n");
fprintf(par, "1 1 3 3\n");
fclose(par);
par=fopen(clipname,"w");
if(!par)
{
perror("open cliptab");
exit(-1);
}
fprintf(par, "audio_dummy %s\n", strname);
fprintf(par, "*\n");
fprintf(par, "B 0 0 %d\n", maxframe+1);
fclose(par);
par=fopen("audio_dummy.out", "w");
if(!par)
{
perror("open audio_dummy");
exit(-1);
}
fprintf(par, "audio_dummy\n");
fclose(par);
return 0;
}
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