99 lines
1.7 KiB
C
99 lines
1.7 KiB
C
/**
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* A short program which converts a .jpg file into a .avif file -
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* just to get a little practice with the basic functionality.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "gd.h"
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static void usage() {
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fprintf(stderr, "Usage: jpeg2avifex [-q quality] [-s speed] infile.jpg outfile.avif\n");
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exit(1);
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}
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int main(int argc, char **argv)
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{
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gdImagePtr im;
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FILE *in, *out;
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int c;
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int speed = -1, quality = -1; // use default values if unspecified
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char *infile, *outfile;
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int failed = 0;
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if (argc < 3) {
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usage();
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}
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while ((c = getopt(argc, argv, "q:s:")) != -1) {
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switch (c) {
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case 'q':
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quality = atoi(optarg);
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break;
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case 's':
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speed = atoi(optarg);
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break;
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default:
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usage();
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}
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}
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if (optind > argc - 2)
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usage();
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infile = strdup(argv[optind++]);
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outfile = strdup(argv[optind]);
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printf("Reading infile %s\n", infile);
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in = fopen(infile, "rb");
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if (!in) {
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fprintf(stderr, "\nError: input file %s does not exist.\n", infile);
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failed = 1;
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goto cleanup;
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}
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im = gdImageCreateFromJpeg(in);
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fclose(in);
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if (!im) {
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fprintf(stderr, "\nError: input file %s is not in JPEG format.\n", infile);
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failed = 1;
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goto cleanup;
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}
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out = fopen(outfile, "wb");
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if (!out) {
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fprintf(stderr, "\nError: can't write to output file %s\n", outfile);
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failed = 1;
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goto cleanup;
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}
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fprintf(stderr, "Encoding...\n");
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gdImageAvifEx(im, out, quality, speed);
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printf("Wrote outfile %s.\n", outfile);
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fclose(out);
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cleanup:
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if (im)
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gdImageDestroy(im);
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gdFree(infile);
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gdFree(outfile);
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exit(failed);
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}
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