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Fixed to understand new file format; and cosmetics.

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This commit is contained in:
Guido van Rossum 1991-11-04 15:54:36 +00:00
parent 5d731fc88c
commit bac4572300
1 changed files with 21 additions and 5 deletions
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26
Demo/sgi/video/v2i.c
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@ -1,9 +1,14 @@
/* Convert the first image of a CMIF video movie file to SGI .rgb format.
usage: v2i videofile imagefile [planemask]
link with -limage
*/
#include <stdio.h> #include <stdio.h>
#include <gl/image.h> #include <gl/image.h>
long bm[1280]; long bm[1280];
short rb[1280], gb[1280], bb[1280]; short rb[1280], gb[1280], bb[1280];
long h, w; long w, h, pf;
#define R(comp) ((comp) & 0xff) #define R(comp) ((comp) & 0xff)
#define G(comp) (((comp)>>8) & 0xff) #define G(comp) (((comp)>>8) & 0xff)
@ -20,7 +25,7 @@ main(argc, argv)
if( argc != 3 && argc != 4) { if( argc != 3 && argc != 4) {
fprintf(stderr, "Usage: v2i videofile imgfile [planemask]\n"); fprintf(stderr, "Usage: v2i videofile imgfile [planemask]\n");
exit(1); exit(2);
} }
if ( argc == 4) if ( argc == 4)
pmask = atoi(argv[3]); pmask = atoi(argv[3]);
@ -30,12 +35,23 @@ main(argc, argv)
perror(argv[1]); perror(argv[1]);
exit(1); exit(1);
} }
gets(lbuf); if (fgets(lbuf, sizeof lbuf, stdin) == NULL) {
if ( sscanf(lbuf, "(%d,%d)", &w, &h) != 2) { fprintf(stderr, "Immediate EOF\n");
exit(1);
}
if (strncmp(lbuf, "CMIF", 4) == 0) {
/* Skip optional header line */
if (fgets(lbuf, sizeof lbuf, stdin) == NULL) {
fprintf(stderr, "Immediate EOF after header\n");
exit(1);
}
}
pf = 2; /* Default */
if ( sscanf(lbuf, "(%d,%d,%d)", &w, &h, &pf) < 2) {
fprintf(stderr, "%s: bad size spec: %s\n", argv[0], lbuf); fprintf(stderr, "%s: bad size spec: %s\n", argv[0], lbuf);
exit(1); exit(1);
} }
gets(lbuf); /* Skip time info */ fgets(lbuf, sizeof lbuf, stdin); /* Skip time info */
if ( w > 1280 ) { if ( w > 1280 ) {
fprintf(stderr, "%s: Sorry, too wide\n", argv[0]); fprintf(stderr, "%s: Sorry, too wide\n", argv[0]);
exit(1); exit(1);