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.

diff --git a/cupsfilters/filter.h b/cupsfilters/filter.h
index 233fc628ad0d1bd9889be4d52caa66efdf525b8b..d337e1c699a98150ed14b57e9388d5d40d4f82d4 100644 (file)
--- a/cupsfilters/filter.h
+++ b/cupsfilters/filter.h
@@ -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 */