libcupsfilters: Update comments about filter functions in filter.h
The filter functions cfFilterGhostscript() and cfFilterPWGtoPDF()
allow the output format also to be supplied as parameter and not
only via filter data structure.
@@ -193,6 +193,7 @@ extern int cfFilterGhostscript(int inputfd,
void *parameters);
/* Requires specification of output format via data->final_content_type
+ or alternatively as parameter of type cf_filter_out_format_t.
Output formats: PDF, raster-only PDF, PCLm, PostScript, CUPS Raster,
PWG Raster, Apple Raster, PCL-XL
@@ -330,6 +331,7 @@ extern int cfFilterPWGToPDF(int inputfd,
void *parameters);
/* Requires specification of output format via data->final_content_type
+ or alternatively as parameter of type cf_filter_out_format_t.
Output formats: PDF, PCLm */
