diff options
Diffstat (limited to 'Build/source/libs/gd/libgd-src/examples/png2avif.c')
-rw-r--r-- | Build/source/libs/gd/libgd-src/examples/png2avif.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/examples/png2avif.c b/Build/source/libs/gd/libgd-src/examples/png2avif.c new file mode 100644 index 00000000000..18463e788c4 --- /dev/null +++ b/Build/source/libs/gd/libgd-src/examples/png2avif.c @@ -0,0 +1,58 @@ +/** + * A short program which converts a .png file into a .avif file - + * just to get a little practice with the basic functionality. + * We convert losslessly. + */ + +#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: png2avif infile.png outfile.avif\n"); + exit(1); + } + + printf("Reading infile %s\n", argv[1]); + + in = fopen(argv[1], "rb"); + if (!in) { + fprintf(stderr, "Error: input file %s does not exist.\n", argv[1]); + exit(1); + } + + im = gdImageCreateFromPng(in); + fclose(in); + if (!im) { + fprintf(stderr, "Error: input file %s is not in PNG format.\n", argv[1]); + exit(1); + } + + out = fopen(argv[2], "wb"); + if (!out) { + fprintf(stderr, "Error: can't write to output file %s\n", argv[2]); + gdImageDestroy(im); + exit(1); + } + + fprintf(stderr, "Encoding...\n"); + + gdImageAvifEx(im, out, 100, 0); + + printf("Wrote outfile %s.\n", argv[2]); + + fclose(out); + gdImageDestroy(im); + + return 0; +} |