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Diffstat (limited to 'examples/avif2jpeg.c')
-rw-r--r-- | examples/avif2jpeg.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/examples/avif2jpeg.c b/examples/avif2jpeg.c new file mode 100644 index 0000000..6ced15d --- /dev/null +++ b/examples/avif2jpeg.c @@ -0,0 +1,55 @@ +/** + * A short program which converts a .avif file into a .jpg file - + * just to get a little practice with the basic functionality. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include <stdio.h> +#include <stdlib.h> + +#include "gd.h" + +int main(int argc, char **argv) +{ + gdImagePtr im; + FILE *in, *out; + + if (argc != 3) { + fprintf(stderr, "Usage: avif2jpeg infile.avif outfile.jpg\n"); + exit(1); + } + + printf("Reading infile %s\n", argv[1]); + + in = fopen(argv[1], "rb"); + if (!in) { + fprintf(stderr, "\nError: input file %s does not exist.\n", argv[1]); + exit(1); + } + + im = gdImageCreateFromAvif(in); + fclose(in); + if (!im) { + fprintf(stderr, "\nError: input file %s is not in AVIF format.\n", argv[1]); + exit(1); + } + + out = fopen(argv[2], "wb"); + if (!out) { + fprintf(stderr, "\nError: can't write to output file %s\n", argv[2]); + gdImageDestroy(im); + exit(1); + } + + gdImageJpeg(im, out, 75); + + printf("Wrote outfile %s.\n", argv[2]); + + fclose(out); + gdImageDestroy(im); + + return 0; +} |