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#include <fitz.h>
void
usage(void)
{
printf("usage: filter filt0 param0 filt1 param1 filt2 param2 ...\n");
exit(1);
}
struct {
char *name;
fz_error *(*newf)(fz_filter **, fz_obj*);
} table[] = {
{ "ASCIIHexDecode", fz_newahxd },
{ "ASCII85Decode", fz_newa85d },
{ "CCITTFaxDecode", fz_newfaxd },
{ "DCTDecode", fz_newdctd },
{ "RunLengthDecode", fz_newrld },
{ "LZWDecode", fz_newlzwd },
{ "FlateDecode", fz_newflated },
{ "ASCIIHexEncode", fz_newahxe },
{ "ASCII85Encode", fz_newa85e },
{ "CCITTFaxEncode", fz_newfaxe },
{ "DCTEncode", fz_newdcte },
{ "RunLengthEncode", fz_newrle },
{ "LZWEncode", fz_newlzwe },
{ "FlateEncode", fz_newflatee },
{ "PredictDecode", fz_newpredictd },
{ "PredictEncode", fz_newpredicte },
{ "JBIG2Decode", fz_newjbig2d },
{ "JPXDecode", fz_newjpxd },
{ nil, nil, }
};
fz_error *
makefilter(fz_filter **fp, char *f, fz_obj *p)
{
int i;
for (i = 0; table[i].name; i++)
if (strcmp(f, table[i].name) == 0)
return table[i].newf(fp, p);
return fz_throw("unknown filter type '%s'", f);
}
int
main(int argc, char **argv)
{
unsigned char buf[512];
int i;
fz_error *err;
fz_filter *filter;
fz_filter *pipe;
fz_file *file;
fz_obj *param;
if (argc == 1)
usage();
filter = nil;
pipe = nil;
for (i = 1; i < argc - 1; i += 2)
{
err = fz_parseobj(¶m, argv[i+1]);
if (err) fz_abort(err);
err = makefilter(&filter, argv[i], param);
if (err) fz_abort(err);
if (pipe) {
err = fz_newpipeline(&pipe, pipe, filter);
if (err) fz_abort(err);
}
else
pipe = filter;
}
err = fz_openfile(&file, "/dev/stdin", FZ_READ);
if (err) fz_abort(err);
if (pipe)
{
err = fz_pushfilter(file, pipe);
if (err) fz_abort(err);
}
while (1)
{
i = fz_read(file, buf, sizeof buf);
if (i < 0)
fz_abort(fz_ferror(file));
if (i == 0)
break;
write(1, buf, i);
}
if (pipe)
fz_popfilter(file);
fz_closefile(file);
return 0;
}
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